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You searched for: Subject chemical species Remove constraint Subject: chemical species Subject coordination polymers Remove constraint Subject: coordination polymers
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1. Dispersive micro-solid-phase extraction of hormones in liquid cosmetics with metal–organic framework

Author:
Yujuan Zhai; Na Li; Lei Lei; Xiao Yang; Hanqi Zhang
Source:
Analytical methods 2014 v.6 no.23 pp. 9435-9445
ISSN:
1759-9679
Subject:
chemical species; coordination polymers; cosmetics; detection limit; high performance liquid chromatography; hormones; liquids; pH; sodium chloride; solvents
Abstract:
... The dispersive micro-solid-phase extraction based on the metal–organic framework MIL-101(Cr) was developed and applied for the extraction of hormones from cosmetics. The hormones were separated and determined by high performance liquid chromatography. Several experimental parameters, including extraction method, extraction time, pH value of sample solution, amount of MIL-101(Cr), concentration of ...
DOI:
10.1039/c4ay01763c

2. Lanthanide based tuning of luminescence in MOFs and dense frameworks – from mono- and multimetal systems to sensors and films

Author:
L. V. Meyer; F. Schönfeld; K. Müller-Buschbaum
Source:
Chemical communications 2014 v.50 no.60 pp. 8093-8108
ISSN:
1364-548X
Subject:
chemical reactions; chemical species; coordination polymers; films (materials); lanthanides; ligands; metal ions; photoluminescence; porosity
Abstract:
... This feature article focuses on tuning options of photoluminescence properties of lanthanide containing Metal–Organic Frameworks (MOFs) and Dense Frameworks by selection of an appropriate set of metal ions together with suitable ligands. In addition to lanthanide-only systems, frameworks with main group and transition metal ions that are heterometallic or co-doped with variable lanthanide content ...
DOI:
10.1039/c4cc00848k

3. Metal–organic frameworks as stationary phases for mixed-mode separation applications

Author:
Chris S. HawesThese authors contributed equally to this work.; Yada Nolvachai; Chadin Kulsing; Gregory P. Knowles; Alan L. Chaffee; Philip J. Marriott; Stuart R. Batten; David R. Turner
Source:
Chemical communications 2014 v.50 no.28 pp. 3735-3737
ISSN:
1364-548X
Subject:
chemical reactions; chemical species; coordination polymers; polar compounds; polycyclic aromatic hydrocarbons
Abstract:
... Polymorphic metal–organic framework (MOF) materials offer a platform for small-scale separation of complex mixtures of polycyclic aromatic hydrocarbons (PAHs) and polar compounds. Retention factors show dependence on both analyte dimensions and polarity, suggesting mixed-mode separation, allowing complete resolution of some analytes from multi-component mixtures. ...
DOI:
10.1039/c4cc00933a

4. One-pot synthesis of UiO-66@SiO₂ shell–core microspheres as stationary phase for high performance liquid chromatography

Author:
Xiaoqiong Zhang; Qiang Han; Mingyu Ding
Source:
RSC advances 2014 v.5 no.2 pp. 1043-1050
ISSN:
2046-2069
Subject:
adsorption; chemical species; constitutional isomers; coordination polymers; ethylbenzene; high performance liquid chromatography; hydrogen bonding; hydrophobicity; microparticles; particle size; sieving; silica; surface area; synergism; synthesis; temperature; xylene
Abstract:
... The unusual properties of ultrahigh surface area, adsorption affinity and shape selectivity make metal–organic frameworks (MOFs) a promising candidate as the stationary phase for high performance liquid chromatography (HPLC). However, the problems of high column backpressure and low column efficiency resulting from the direct packing of irregular MOF particles still remain in the HPLC separation. ...
DOI:
10.1039/c4ra12263a

5. Roles of hydrogen bonds and π–π stacking in the optical detection of nitro-explosives with a luminescent metal–organic framework as the sensor

Author:
Lei Liu; Juanyuan Hao; Yantao Shi; Jieshan Qiu; Ce Hao
Source:
RSC advances 2014 v.5 no.4 pp. 3045-3053
ISSN:
2046-2069
Subject:
benzene; chemical species; coordination polymers; density functional theory; electron transfer; hydrogen bonding; luminescence; nitrobenzenes
Abstract:
... With the aids of density functional theory (DFT) and time-dependent density functional theory (TD-DFT), the explosives-detection mechanism of a typical luminescent metal–organic framework (MOF) sensor has been comprehensively studied by investigating the interactions between the framework and two analytes, namelty, benzene and nitrobenzene. By studying both the periodic crystal models and cluster ...
DOI:
10.1039/c4ra12835d

6. A fluorescent metal–organic framework for highly selective detection of nitro explosives in the aqueous phase

Author:
Sanjog S. Nagarkar; Aamod V. Desai; Sujit K. Ghosh
Source:
Chemical communications 2014 v.50 no.64 pp. 8915-8918
ISSN:
1364-548X
Subject:
chemical reactions; chemical species; coordination polymers; explosives; fluorescence
Abstract:
... Selective and sensitive nitro explosive detection by a porous luminescent metal–organic framework has been reported. For the first time MOF based selective explosive detection in the presence of other nitro analytes in aqueous media is demonstrated. ...
DOI:
10.1039/c4cc03053b

7. Aqueous- and vapor-phase detection of nitroaromatic explosives by a water-stable fluorescent microporous MOF directed by an ionic liquid

Author:
Jianhua Qin; Bing Ma; Xiao-Fei Liu; Hong-Lin Lu; Xi-Yan Dong; Shuang-Quan Zang; Hongwei Hou
Source:
Journal of materials chemistry A 2015 v.3 no.24 pp. 12690-12697
ISSN:
2050-7496
Subject:
chemical species; coordination polymers; crystal structure; explosives; fluorescence; ionic liquids; ligands; nitroaromatic compounds; porous media; terbium; topology; vapors
Abstract:
... A water-stable fluorescent microporous metal–organic framework (MOF), [Tb(L)(OH)]·x(solv) (1), has been designed and successfully synthesized under a combination of hydro/solvothermal and ionothermal conditions (H₂L = 5-(4-carboxyphenyl)pyridine-2-carboxylate). The crystal structure reveals that complex 1 consists of cubane-shaped tetranuclear terbium building units, which are further bridged by t ...
DOI:
10.1039/c5ta00322a

8. Metal organic framework MIL-101 coated fiber for headspace solid phase microextraction of volatile aromatic compounds

Author:
Xiaohuan Zang; Guijiang Zhang; Qingyun Chang; Xi Zhang; Chun Wang; Zhi Wang
Source:
Analytical methods 2015 v.7 no.3 pp. 918-923
ISSN:
1759-9679
Subject:
aromatic compounds; chemical species; coatings; coordination polymers; desorption; detection limit; gas chromatography-mass spectrometry; headspace analysis; lakes; signal-to-noise ratio; solid phase microextraction; stainless steel; temperature
Abstract:
... A sol–gel coating technique was applied for the preparation of metal organic frameworks (MOFs)-based solid phase microextraction (SPME) fibers by coating MIL-101 onto stainless steel wires. The prepared fiber was explored for the headspace SPME (HS-SPME) of seven volatile aromatic compounds (VACs) from water samples followed by gas chromatography-mass spectrometric analysis. Several important expe ...
DOI:
10.1039/c4ay02540g

9. Application of a Zn(ii) based metal–organic framework as an efficient solid-phase extraction sorbent for preconcentration of plasticizer compounds

Author:
Elham Tahmasebi; Mohammad Yaser Masoomi; Yadollah Yamini; Ali Morsali
Source:
RSC advances 2016 v.6 no.46 pp. 40211-40218
ISSN:
2046-2069
Subject:
chemical species; coordination polymers; dibutyl phthalate; flame ionization; plasticizers; solid phase extraction; sorbents; surface area; zinc
Abstract:
... A solid-phase extraction (SPE) sorbent, a Zn(ii) based metal–organic framework, was prepared via a simple, solventless, green and a low-cost mechanosynthesis process. This sorbent was applied to the extraction of three plasticizer compounds (Di-n-butyl phthalate (DBP), di-2-(ethylhexyl) phthalate (DEHP) and dioctyladipate (DOA)) prior to analysis by gas chromatography with a flame ionization detec ...
DOI:
10.1039/c6ra06560k

10. In situ hydrothermal growth of a dual-ligand metal–organic framework film on a stainless steel fiber for solid-phase microextraction of polycyclic aromatic hydrocarbons in environmental water samples

Author:
Shu-Hui Huo; Jing Yu; Yan-Yan Fu; Peng-Xin Zhou
Source:
RSC advances 2016 v.6 no.17 pp. 14042-14048
ISSN:
2046-2069
Subject:
aqueous solutions; chemical species; coordination polymers; detection limit; gas chromatography; polycyclic aromatic hydrocarbons; solid phase microextraction; solubility; stainless steel
Abstract:
... Effective enrichment and determination of polycyclic aromatic hydrocarbons (PAHs) in environmental aqueous solutions is still a major challenge because of their poor solubility and low concentration in the environmental matrix. Solid-phase microextraction (SPME) has been proven to be an effective technique for analyzing trace analytes from environmental samples. Herein, we report the fabrication o ...
DOI:
10.1039/c5ra26656d

11. Preparation of magnetic metal organic framework composites for the extraction of neonicotinoid insecticides from environmental water samples

Author:
Xiaolin Cao; Guangyang Liu; Yongxin She; Zejun Jiang; Fen Jin; Maojun Jin; Pengfei Du; Fengnian Zhao; Yanxin Zhang; Jing Wang
Source:
RSC advances 2016 v.6 no.114 pp. 113144-113151
ISSN:
2046-2069
Subject:
adsorbents; ambient temperature; aromatic compounds; chemical species; chemical structure; coordination polymers; detection limit; electrostatic interactions; high performance liquid chromatography; ionic strength; iron oxides; magnetism; metal ions; nanoparticles; neonicotinoid insecticides; pH; signal-to-noise ratio; solid phase extraction; solvents; standard deviation; tandem mass spectrometry
Abstract:
... MOF-199/Fe₃O₄ nanoparticles were explored for the first time to purify environmental water samples and adsorb neonicotinoid insecticides as hybrid adsorbents. The composites were successfully synthesized by an in situ method at room temperature with electrostatic interaction to chemically stabilize the nanoparticles and metal ions. The nanoparticles were uniformly encoded with metal organic framew ...
DOI:
10.1039/c6ra23759b

12. Separation of amino acid enantiomers by a capillary modified with a metal–organic framework

Author:
Nengsheng Ye; Jichao Ma; Jianxin An; Jian Li; Zhimin Cai; Han Zong
Source:
RSC advances 2016 v.6 no.47 pp. 41587-41593
ISSN:
2046-2069
Subject:
Fourier transform infrared spectroscopy; X-ray diffraction; chemical species; coordination polymers; detection limit; electrochromatography; enantiomers; energy-dispersive X-ray analysis; phenylalanine; scanning electron microscopy; thermogravimetry; tyrosine
Abstract:
... A type of homochiral metal–organic framework (MOF), [Zn₂(d-Cam)₂(4,4′-bpy)]ₙ (d-Cam = d-(+)-camphoric acid; bpy = bipyridyl), was synthesized and utilized as the chiral stationary phase for capillary electrochromatography. X-ray diffraction (XRD), thermogravimetric analysis (TGA) and Fourier-transform infrared spectroscopy (FTIR) were performed to characterize the MOF. The MOF particles were attac ...
DOI:
10.1039/c6ra02741e

13. A metal–organic framework-derived nanoporous carbon/iron composite for enrichment of endocrine disrupting compounds from fruit juices and milk samples

Author:
Xingli Liu; Tao Feng; Chenhuan Wang; Lin Hao; Chun Wang; Qiuhua Wu; Zhi Wang
Source:
Analytical methods 2016 v.8 no.17 pp. 3528-3535
ISSN:
1759-9679
Subject:
adsorbents; adsorption; carbon; carbonization; chemical species; composite materials; coordination polymers; detection limit; endocrine-disrupting chemicals; fruit juices; high performance liquid chromatography; iron; magnetic properties; magnetism; milk; nanopores; pollutants; solid phase extraction; surface area
Abstract:
... In this work, a nanoporous carbon/iron composite material designated as MIL-53-C was fabricated by one-step carbonization of an Fe-based metal–organic framework material MIL-53. The obtained MIL-53-C showed a high Brunauer–Emmett–Teller surface area (249.33 m² g⁻¹), large pore volume (0.57 cm³ g⁻¹) and an excellent magnetic property (127.95 emu g⁻¹). It was used as a magnetic solid-phase extractio ...
DOI:
10.1039/c6ay00191b

14. A series of europium-based metal organic frameworks with tuned intrinsic luminescence properties and detection capacities

Author:
Pengda Yi; Hongliang Huang; Yaguang Peng; Dahuan Liu; Chongli Zhong
Source:
RSC advances 2016 v.6 no.113 pp. 111934-111941
ISSN:
2046-2069
Subject:
acetone; chemical species; chromates; coordination polymers; emissions factor; fluorescence; iron; moieties; synergism
Abstract:
... Three new isostructural luminescent complexes [(CH₃)₂NH₂]₂[Eu₆(μ₃-OH)₈(BDC-NH₂)₆(H₂O)₆], [(CH₃)₂NH₂]₂[Eu₆(μ₃-OH)₈(BDC-F)₆(H₂O)₆] and [(CH₃)₂NH₂]₂[Eu₆(μ₃-OH)₈(BDC-NO₂)₆(H₂O)₆] have been synthesized based on [(CH₃)₂NH₂]₂[Eu₆(μ₃-OH)₈(1,4-NDC)₆(H₂O)₆] under solvothermal conditions. In addition, these Eu-MOFs possess tuned intrinsic luminescence properties and detection capacities for different analyte ...
DOI:
10.1039/c6ra23263a

15. Eu(iii)-functionalized ZnO@MOF heterostructures: integration of pre-concentration and efficient charge transfer for the fabrication of a ppb-level sensing platform for volatile aldehyde gases in vehicles

Author:
Xiao-Yu Xu; Bing Yan
Source:
Journal of materials chemistry A 2017 v.5 no.5 pp. 2215-2223
ISSN:
2050-7496
Subject:
air; ambient temperature; chemical species; coordination polymers; encapsulation; europium; fluorescence; ions; monitoring; nanoparticles; semiconductors; surface area; toxicity; zinc oxide
Abstract:
... Gas sensors for the detection of toxic or explosive gases both in outdoor and indoor air are of great interest for applications. A lot of effort has been devoted to develop the sensing properties in the area of metal–organic frameworks (MOFs) and semiconductor metal oxide based sensors. In our work, we report a semiconductor ZnO doped Uio-MOF heterostructure which can combine the advantage of both ...
DOI:
10.1039/c6ta10019h

16. Fabrication of a new metal–organic framework for sensitive sensing of nitroaromatics and efficient dye adsorption

Author:
Wei-Ping Wu; Jian Wu; Jian-Qiang Liu; Manoj Trivedi; Abhinav Kumar
Source:
RSC advances 2017 v.7 no.86 pp. 54522-54531
ISSN:
2046-2069
Subject:
adsorption; cadmium; carbon dioxide; carboxylic acids; chemical species; coordination polymers; energy transfer; fluorescence; ions; iron; ligands; methylene blue; nitroaromatic compounds; porous media; topology
Abstract:
... The hydrothermal reaction of Cd(ii) salt with rigid tetracarboxylate ligand, terphenyl-3,3′′,5,5′′-tetracarboxylic acid (H₄L) produced a new metal–organic framework (MOF) {[Cd₂(L)(DMF)₃]·0.5DMF}ₙ (1). Single crystal X-ray diffraction showed that MOF 1 possesses a 3D microporous framework with 4-connected Dia topology which is based on {Cd₂(CO₂)₄} subunits. MOF 1 is a promising dual functional sens ...
DOI:
10.1039/c7ra11221a

17. Fluorescence detection of Mn²⁺, Cr₂O₇²⁻ and nitroexplosives and photocatalytic degradation of methyl violet and rhodamine B based on two stable metal–organic frameworks

Author:
Yu Wu; Jian Wu; Zhidong Luo; Jun Wang; Yulong Li; Yaoyao Han; Jianqiang Liu
Source:
RSC advances 2017 v.7 no.17 pp. 10415-10423
ISSN:
2046-2069
Subject:
acetonitrile; cadmium; chemical species; coordination polymers; fluorescence; gentian violet; ligands; manganese; nitrates; photocatalysis; photoluminescence; rhodamines; topology; zinc
Abstract:
... The reaction of Zn(NO₃)₂·6H₂O/Cd(NO₃)₂·4H₂O with a semi-flexible ligand 4′-(4-(3,5-dicarboxylphenoxy)phenyl)-4,2′:6′,4′′-terpyridine (H₂dbp) gave two new metal–organic frameworks of [Zn(dbp)]ₙ (1) and [Cd(dbp)(H₂O)·2H₂O·CH₃CN]ₙ (2). Single crystal X-ray diffraction analyses reveal that both 1 and 2 show three-dimensional, two-fold interpenetrating four-connected networks with 4⁴.6¹⁰.8 topology. Th ...
DOI:
10.1039/c6ra28728j

18. An ultrastable zinc(ii)–organic framework as a recyclable multi-responsive luminescent sensor for Cr(iii), Cr(vi) and 4-nitrophenol in the aqueous phase with high selectivity and sensitivity

Author:
Xiao-Yu Guo; Fei Zhao; Jing-Juan Liu; Zhi-Liang Liu; Yan-Qin Wang
Source:
Journal of materials chemistry A 2017 v.5 no.37 pp. 20035-20043
ISSN:
2050-7496
Subject:
Lewis bases; absorption; aqueous solutions; chemical species; chromates; chromium; coordination polymers; fluorescence; ions; p-nitrophenol; pH stability; porous media; zinc
Abstract:
... A 2D zinc(ii) metal–organic framework (Zn-MOF-1) formulated as [Zn(L)(H₂O)]·H₂O (1) (H₂L = 5-(2-methylpyridin-4-yl)isophthalic acid) with blue fluorescence has been successfully obtained under hydrothermal conditions. Zn-MOF-1 contains microporous parallelogram channels with accessible Lewis-base sites, coordinated water molecules and uncoordinated carboxylates, which are easy to anchor and recogn ...
DOI:
10.1039/c7ta05896a

19. Application of metal-organic framework MIL-101(Cr) to microextraction in packed syringe for determination of triazine herbicides in corn samples by liquid chromatography-tandem mass spectrometry

Author:
Yanxiao Jiang; Pinyi Ma; Xinpei Li; Huilan Piao; Dan Li; Ying Sun; Xinghua Wang; Daqian Song
Source:
Journal of chromatography 2018 pp. -
ISSN:
0021-9673
Subject:
adsorption; ametryn; atraton; chemical species; coordination polymers; corn; desmetryn; detection limit; dipropetryn; high performance liquid chromatography; microextraction; prometon; prometryn; solvents; sorbents; tandem mass spectrometry; ultrasonics
Abstract:
... In this work, a metal-organic framework material MIL-101(Cr) was prepared and used as the sorbent for a laboratory-made semi-automated microextraction in packed syringe (MEPS). Six triazine herbicides, including desmetryn, prometon, ametryn, prometryn, atraton, and dipropetryn, that are commonly found in corn samples, were extracted and determined by the MEPS method and high performance liquid chr ...
DOI:
10.1016/j.chroma.2018.09.008

20. Concurrent Sensing of CO₂ and H₂O from Air Using Ultramicroporous Fluorinated Metal–Organic Frameworks: Effect of Transduction Mechanism on the Sensing Performance

Author:
Mohamed Rachid Tchalala; Youssef Belmabkhout; Karim Adil; Karumbaiah Nanaiah Chappanda; Amandine Cadiau; Prashant M. Bhatt; Khaled Nabil Salama; Mohamed Eddaoudi
Source:
ACS applied materials & interfaces 2018 v.11 no.1 pp. 1706-1712
ISSN:
1944-8252
Subject:
air; carbon dioxide; chemical species; coordination polymers; electrical equipment; electrodes; mining; quartz crystal microbalance; relative humidity; vapors
Abstract:
... Conventional materials for gas/vapor sensing are limited to a single probe detection ability for specific analytes. However, materials capable of concurrent detection of two different probes in their respective harmful levels and using two types of sensing modes have yet to be explored. In particular, the concurrent detection of uncomfortable humidity levels and CO₂ concentration (400–5000 ppm) in ...
DOI:
10.1021/acsami.8b18327

21. Discriminative Molecular Detection Based on Competitive Absorption by a Luminescent Metal–Organic Framework

Author:
Sunhwi Eom; Han Geul Lee; Dong Won Kang; Minjung Kang; Hyojin Kim; Youngseo Kim; Sungnam Park; Dohyun Moon; Chang Seop Hong
Source:
ACS applied materials & interfaces 2018 v.10 no.47 pp. 40372-40377
ISSN:
1944-8252
Subject:
absorption; chemical species; coordination polymers; emissions factor; irradiation; luminescence; wavelengths
Abstract:
... Distinguishing specific molecules from similar chemical species with minor structural differences is challenging, and differentiation has typically been based on analyte-dependent host–guest interactions upon irradiation with a single wavelength. In this study, we prepared a Cd-based metal–organic framework exhibiting nearly constant emission intensity over a wide range of excitations. Because of ...
DOI:
10.1021/acsami.8b16926

22. Dispersive solid‐phase extraction of selected nitrophenols from environmental water samples using a zirconium‐based amino‐tagged metal–organic framework nanosorbent

Author:
Maryam Salimi; Mohammad Behbahani; Hamid Reza Sobhi; Mahnaz Ghambarian; Ali Esrafili
Source:
Journal of separation science 2018 v.41 no.22 pp. 4159-4166
ISSN:
1615-9306
Subject:
chemical species; coordination polymers; detection limit; high performance liquid chromatography; nitrophenols; signal-to-noise ratio; solid phase extraction; solvents; sorbents; toxicity
Abstract:
... This study has centered on the establishment of an efficient, simple and reliable dispersive solid‐phase extraction method followed by an accurate trace determination of selected nitrophenols as a class of compounds with high toxicity and low degradability. To achieve the above goal, a zirconium‐based amino‐tagged metal–organic framework nanosorbent was synthesized, characterized and eventually em ...
DOI:
10.1002/jssc.201800764

23. Electron Beam-Induced Surface Activation of Metal–Organic Framework HKUST-1: Unraveling the Underlying Chemistry

Author:
Kai Ahlenhoff; Christian Preischl; Petra Swiderek; Hubertus Marbach
Source:
Journal of physical chemistry 2018 v.122 no.46 pp. 26658-26670
ISSN:
1932-7455
Subject:
active sites; chemical species; cobalt; coordination polymers; copper; copper nanoparticles; desorption; iron; oxalates
Abstract:
... The local chemical activation of surface-anchored metal–organic frameworks is a novel electron beam-based lithographic technique with a high potential for the fabrication of chemically and spatially well-defined nanostructures in the sub-10 nm regime. In this context, we have performed a detailed investigation of electron beam-induced surface activation (EBISA) on the surface-anchored layers of HK ...
DOI:
10.1021/acs.jpcc.8b06226

24. Generation of thiyl radicals in a zinc(ii) porous coordination polymer by light-induced post-synthetic deprotection

Author:
Shinpei Kusaka; Ryotaro Matsuda; Susumu Kitagawa
Source:
Chemical communications 2018 v.54 no.38 pp. 4782-4785
ISSN:
1364-548X
Subject:
chemical reactions; chemical species; coordination polymers; free radicals; irradiation; sulfides; ultraviolet radiation; zinc
Abstract:
... Kinetic stabilisation of unstable chemical species in nanospace is of potential importance in the field of materials and synthetic chemistry, and porous coordination polymers (PCPs) represent a facile platform to provide such reaction fields. Thiyl radicals are important reactive substances that often play a leading role in organic and bioorganic chemistry. However, their generation in nanospace h ...
DOI:
10.1039/c8cc01837e

25. Highly Specific Enrichment of Multi-phosphopeptides by the Diphosphorylated Fructose-Modified Dual-Metal-Centered Zirconium–Organic Framework

Author:
Jiaxi Peng; Huan Niu; Hongyan Zhang; Yating Yao; Xingyun Zhao; Xiaoyu Zhou; Lihong Wan; Xiaohui Kang; Ren’an Wu
Source:
ACS applied materials & interfaces 2018 v.10 no.38 pp. 32613-32621
ISSN:
1944-8252
Subject:
adsorbents; chemical species; coordination polymers; density functional theory; fructose; human cell lines; hydrophilicity; ionization; orthophosphates; peptides; phosphorylation
Abstract:
... Multisite phosphorylation of a protein, generally occurring in biological processes, plays important roles in the regulation of cellular functions. However, the identification of multi-phosphopeptides especially at low abundance is a big challenge as the extreme hydrophilicity and poor ionization efficiency of the multiphosphorylated peptides restrict the deep inspection of multisite phosphorylati ...
DOI:
10.1021/acsami.8b11138

26. Magnetic metal-organic frameworks for fast and efficient solid-phase extraction of six Sudan dyes in tomato sauce

Author:
Xin-Ran Shi; Xue-Lei Chen; Yu-Lan Hao; Li Li; Hou-Jun Xu; Man-Man Wang
Source:
Journal of chromatography 2018 v.1086 pp. 146-152
ISSN:
1570-0232
Subject:
Sudan dyes; adsorbents; adsorption; aluminum oxide; chemical species; chromium; coordination polymers; detection limit; high performance liquid chromatography; magnetism; solid phase extraction; standard deviation; tomato sauce
Abstract:
... Magnetic solid-phase extraction is an effective and useful technique to preconcentrate trace analytes from food samples. In this study, a magnetic trimeric chromium octahedral metal-organic framework (Fe3O4-NH2@MIL-101) was fabricated and characterized. Fe3O4-NH2@MIL-101 was applied as an adsorbent of magnetic solid-phase extraction combined with high performance liquid chromatography to effective ...
DOI:
10.1016/j.jchromb.2018.04.022

27. Magnetic solid-phase extraction of fluoroquinolones from water samples using titanium-based metal-organic framework functionalized magnetic microspheres

Author:
Lili Lian; Xinyang Zhang; Jie Hao; Jinyi Lv; Xiyue Wang; Bo Zhu; Dawei Lou
Source:
Journal of chromatography 2018 v.1579 pp. 1-8
ISSN:
0021-9673
Subject:
adsorbents; chemical species; coordination polymers; detection limit; fluoroquinolones; high performance liquid chromatography; hydrophilicity; magnetism; microparticles; nanocomposites; river water; solid phase extraction; tap water; ultra-performance liquid chromatography
Abstract:
... In this study, a unique core-shell titanium-based metal-organic framework (MOF) functionalized magnetic microsphere was constructed and utilized as magnetic adsorbent for enrichment of five fluoroquinolones from water samples. The received magnetic MOF nanocomposite, denoted as Fe3O4@Cys@MIL125-NH2, showed strong magnetic responsiveness, and good hydrophilicity, as well as excellent affinity to th ...
DOI:
10.1016/j.chroma.2018.10.019

28. Metal–Organic Frameworks Mediate Cu Coordination for Selective CO2 Electroreduction

Author:
Dae-Hyun Nam; Oleksandr S. Bushuyev; Jun Li; Phil De Luna; Ali Seifitokaldani; Cao-Thang Dinh; F. Pelayo García de Arquer; Yuhang Wang; Zhiqin Liang; Andrew H. Proppe; Chih Shan Tan; Petar Todorović; Osama Shekhah; Christine M. Gabardo; Jea Woong Jo; Jongmin Choi; Min-Jae Choi; Se-Woong Baek; Junghwan Kim; David Sinton; Shana O. Kelley; Mohamed Eddaoudi; Edward H. Sargent
Source:
Journal of the American Chemical Society 2018 v.140 no.36 pp. 11378-11386
ISSN:
1520-5126
Subject:
X-ray absorption spectroscopy; active sites; benzene; carbon dioxide; catalysts; chemical species; coordination polymers; copper; electrochemistry; electron paramagnetic resonance spectroscopy; ethylene; heat treatment; moieties; oxidation; structure-activity relationships
Abstract:
... The electrochemical carbon dioxide reduction reaction (CO₂RR) produces diverse chemical species. Cu clusters with a judiciously controlled surface coordination number (CN) provide active sites that simultaneously optimize selectivity, activity, and efficiency for CO₂RR. Here we report a strategy involving metal–organic framework (MOF)-regulated Cu cluster formation that shifts CO₂ electroreduction ...
DOI:
10.1021/jacs.8b06407

29. Metal–Organic Frameworks as Surface Enhanced Raman Scattering Substrates with High Tailorability

Author:
Hongzhao Sun; Shan Cong; Zuhui Zheng; Zhen Wang; Zhigang Chen; Zhigang Zhao
Source:
Journal of the American Chemical Society 2018 v.141 no.2 pp. 870-878
ISSN:
1520-5126
Subject:
Raman spectroscopy; chemical species; coordination polymers; ligands; metals; semiconductors; topology
Abstract:
... Surface enhanced Raman scattering (SERS) is a widely used analytical technique for detecting trace-level molecules based on an indispensable SERS substrate. SERS substrates with high tailorability are assumed to be attractive and desirable for SERS detection, because the substrates match the need for the selective detection of different species. Nevertheless, the rational design of such SERS subst ...
DOI:
10.1021/jacs.8b09414

30. Polymer brushes-containing coordination polymer networks on monolith for rapid solid phase extraction of multi-class drug residues in meat samples

Author:
Nan Li; Yue Song; Jing Qiu; Yue-Chen Zhao; Yong-Zhong Qian
Source:
Talanta 2018 v.185 pp. 573-580
ISSN:
0039-9140
Subject:
adsorption; chemical species; chicken meat; coordination polymers; desorption; drug residues; models; quinolones; solid phase extraction; sorbents; standard deviation; steroid hormones; sulfonamides; tandem mass spectrometry; ultra-performance liquid chromatography
Abstract:
... A new solid phase extraction sorbent, based on poly(methacrylic acid) brushes-containing coordination polymer networks on monolith, was in-situ synthesized in a commercial syringe filter via surface grafting. Extraction of twenty model analytes, including nine sulfonamides, eight steroid hormones, and three quinolones, could be efficiently achieved by the monolithic hybrid filter due to multi-inte ...
DOI:
10.1016/j.talanta.2018.03.077

31. Sensing and capture of toxic and hazardous gases and vapors by metal–organic frameworks

Author:
Hao WangThese authors contributed equally to this work.; William P. Lustig; Jing Li
Source:
Chemical Society reviews 2018 v.47 no.13 pp. 4729-4756
ISSN:
1460-4744
Subject:
anthropogenic activities; chemical species; chlorofluorocarbons; coordination polymers; human health; luminescence; perfluorocarbons; porosity; risk; toxic substances; toxicity; vapors; volatile organic compounds
Abstract:
... Toxic and hazardous chemical species are ubiquitous, predominantly emitted by anthropogenic activities, and pose serious risks to human health and the environment. Thus, the sensing and subsequent capture of these chemicals, especially in the gas or vapor phase, are of extreme importance. To this end, metal–organic frameworks have attracted significant interest, as their high porosity and wide tun ...
DOI:
10.1039/c7cs00885f

32. Simple One-Pot Preparation of a Rapid Response AIE Fluorescent Metal–Organic Framework

Author:
Farzaneh Rouhani; Ali Morsali; Pascal Retailleau
Source:
ACS applied materials & interfaces 2018 v.10 no.42 pp. 36259-36266
ISSN:
1944-8252
Subject:
aminophenols; chemical species; coordination polymers; fluorescence; fluorescent dyes; ligands; optical equipment; phenol
Abstract:
... Luminogenic materials, particularly those that have turn-on response by sensing the analytes, are highly regarded as optical instruments, sensing material, fluorescent probes, etc. However, most of these materials are only usable in dilute form and often show the self-quenching effect at high concentrations. The use of light-emitting AIE-based materials (aggregation-induced emission) is the soluti ...
DOI:
10.1021/acsami.8b12404

33. Tailoring the porosity of MOF-derived N-doped carbon electrocatalysts for highly efficient solar energy conversion

Author:
Jin Soo Kang; Jiho Kang; Dong Young Chung; Yoon Jun Son; Seoni Kim; Sungjun Kim; Jin Kim; Juwon Jeong; Myeong Jae Lee; Heejong Shin; Subin Park; Sung Jong Yoo; Min Jae Ko; Jeyong Yoon; Yung-Eun Sung
Source:
Journal of materials chemistry 2018 v.6 no.41 pp. 20170-20183
ISSN:
2050-7496
Subject:
carbon; carbonization; catalysts; chemical species; coordination polymers; electrochemistry; electrodes; energy conversion; mass transfer; porosity; porous media; solar cells; solar energy; surface area; zinc
Abstract:
... Metal–organic framework (MOF)-derived carbon materials have been widely used as catalysts for a variety of electrochemical energy applications, and thermally carbonized zinc-2-methylimidazole (ZIF-8) has shown particularly high performance owing to its microporous structure with a large surface area. However, in the presence of bulky chemical species, such as triiodide, in mesoscopic dye-sensitize ...
DOI:
10.1039/c8ta07190j

34. Welding Metallophthalocyanines into Bimetallic Molecular Meshes for Ultrasensitive, Low-Power Chemiresistive Detection of Gases

Author:
Zheng Meng; Aylin Aykanat; Katherine A. Mirica
Source:
Journal of the American Chemical Society 2018 v.141 no.5 pp. 2046-2053
ISSN:
1520-5126
Subject:
X-ray photoelectron spectroscopy; ammonia; chemical species; coordination polymers; detection limit; electric potential difference; electron paramagnetic resonance spectroscopy; gases; humidity; hydrogen sulfide; nickel; nitric oxide; porous media; welding
Abstract:
... This paper describes the first demonstration of using a series of isoreticular nickel phthalocyanine- and nickel naphthalocyanine-based bimetallic conductive two-dimensional (2D) metal–organic frameworks (MOFs) as active materials in chemiresistive sensing of gases. Devices achieve exceptional sensitivity at sub-part-per-million (ppm) to part-per-billion (ppb) detection limits toward NH₃ (0.31–0.3 ...
DOI:
10.1021/jacs.8b11257

35. A combination of computational−experimental study on metal-organic frameworks MIL-53(Al) as sorbent for simultaneous determination of estrogens and glucocorticoids in water and urine samples by dispersive micro-solid-phase extraction coupled to UPLC-MS/MS

Author:
Guihua Gao; Sijia Li; Shuo Li; Yudan Wang; Pan Zhao; Xiangyu Zhang; Xiaohong Hou
Source:
Talanta 2018 v.180 pp. 358-367
ISSN:
0039-9140
Subject:
adsorbents; adsorption; aqueous solutions; chemical species; coordination polymers; desorption; detection limit; estrogens; glucocorticoids; humans; ionic strength; iron; molecular dynamics; pH; solvents; tandem mass spectrometry; ultra-performance liquid chromatography; urine; zirconium
Abstract:
... In this work, computational and experimental methods were used to study the adsorption of estrogens and glucocorticoids on metal–organic frameworks (MOFs). Computer-aided molecular simulation was applied to predict the adsorption of eight analytes on four MOFs (MIL-101(Cr), MIL-100(Fe), MIL-53(Al), and UiO-66(Zr)) by examining molecular interactions and calculating free binding energies. Subsequen ...
DOI:
10.1016/j.talanta.2017.12.071

36. An overview of different strategies to introduce conductivity in metal–organic frameworks and miscellaneous applications thereof

Author:
Sanjeev K. Bhardwaj; Neha Bhardwaj; Rajnish Kaur; Jyotsana Mehta; Amit L. Sharma; Ki-Hyun Kim; Akash Deep
Source:
Journal of materials chemistry 2018 v.6 no.31 pp. 14992-15009
ISSN:
2050-7496
Subject:
absorption; adsorption; chemical species; coordination polymers; electrical conductivity; electrochemistry; moieties; porosity; surface area
Abstract:
... Metal–organic frameworks (MOFs) are known to possess many interesting material properties such as high specific surface area, tailorable porosity, adsorption/absorption capabilities, post-synthetic modifications, and chemical/thermal stabilities. Because of these unique features, they have been explored for the development of sensors for a variety of analytes. A large proportion of pre-existing MO ...
DOI:
10.1039/c8ta04220a

37. A sensitive aptasensor for the detection of β-amyloid oligomers based on metal–organic frameworks as electrochemical signal probes

Author:
Yanli Zhou; Congming Li; Xiaoqiao Li; Xu Zhu; Baoxian Ye; Maotian Xu
Source:
Analytical methods 2018 v.10 no.36 pp. 4430-4437
ISSN:
1759-9679
Subject:
Alzheimer disease; analytical methods; aptasensors; cerebrospinal fluid; chemical species; coordination polymers; early diagnosis; electrochemistry; electrodes; gold; nanoflowers; nanogold; physicochemical properties; surface area
Abstract:
... In this study, we developed a novel and facile electrochemical aptasensor for β-amyloid (Aβ) oligomer detection based on metal–organic frameworks (MOFs) as signal probes. By using an aptamer-tethered gold nanoflower (AuNF) modified electrode for target capture and aptamer-tagged gold nanoparticles/Cu-MOF (AuNPs/Cu-MOF) conjugates for sensitive signal generation, an effective sandwich sensor was ob ...
DOI:
10.1039/c8ay00736e

38. Construction of Ce-MOF@COF hybrid nanostructure: Label-free aptasensor for the ultrasensitive detection of oxytetracycline residues in aqueous solution environments

Author:
Nan Zhou; Yashen Ma; Bin Hu; Linghao He; Shijun Wang; Zhihong Zhang; Siyu Lu
Source:
Biosensors & bioelectronics 2019 v.127 pp. 92-100
ISSN:
0956-5663
Subject:
aptasensors; aqueous solutions; cerium; chemical species; chemical structure; condensation reactions; coordination polymers; detection limit; electrochemistry; environmental monitoring; food safety; heavy metals; medicine; melamine; metal ions; milk; nanohybrids; neoplasms; oligonucleotides; oxytetracycline; surface area; urine; wastewater
Abstract:
... Porous organic framework (COF) nanomaterials have drawn increasing attention and showed promising potential in the applications of various fields. Nevertheless, its applications in biosensing or biomedical fields are still in the early stage. In this work, we designed and synthesized a series of nanohybrids of COF and Ce-based metal organic framework (Ce-MOF) for the first time as label-free biopl ...
DOI:
10.1016/j.bios.2018.12.024

39. Core–Shell Metal–Organic Frameworks as the Mixed-Mode Stationary Phase for Hydrophilic Interaction/Reversed-Phase Chromatography

Author:
Xueyun Li; Bo Li; Mingchen Liu; Yufeng Zhou; Liyuan Zhang; Xiaoqiang Qiao
Source:
ACS applied materials & interfaces 2019 v.11 no.10 pp. 10320-10327
ISSN:
1944-8252
Subject:
Fourier transform infrared spectroscopy; X-ray diffraction; chemical species; coordination polymers; hydrophilicity; hydrophobicity; lakes; liquid chromatography; liquids; pollutants; polycyclic aromatic hydrocarbons; scanning electron microscopy; silica; thermogravimetry
Abstract:
... Stationary phases with mixed-mode mechanisms have emerged as a hot research topic. In the present research, monodisperse core–shell UiO-67@SiO₂ materials were prepared and further served as the packed column for mixed-mode hydrophilic interaction liquid chromatography/reversed-phase liquid chromatography. The developed UiO-67@SiO₂ materials were characterized via thermogravimetric analysis, scanni ...
DOI:
10.1021/acsami.9b00285

40. DNA-shaped silver(i) coordination polymer based micro-solid phase extraction for determination of Amaranth and Brilliant Blue FCF in food and water samples

Author:
Hamid Reza Noormohamadi; Mohammad Reza Fat'hi; Mehrorang Ghaedi; Valiollah Nobakht; Sara Azizzadeh
Source:
Analytical methods 2019 v.11 no.5 pp. 618-626
ISSN:
1759-9679
Subject:
chemical species; coordination polymers; food colorants; graphs; mechanochemistry; pH; silver; sorbents; ultraviolet-visible spectroscopy
Abstract:
... In this study, a green and simple mechanochemical synthesis was applied for fabricating a cationic silver(i) coordination polymer (silver(i)-CP) as a promising sorbent for extracting two food dyes including Amaranth and Brilliant Blue FCF during dispersive micro-solid phase extraction directly before UV-Vis spectrophotometric detection. Then, the spectra without overlapping were recorded between 4 ...
DOI:
10.1039/c8ay02350f

41. Evaluation of metal-organic framework NH2-MIL-101(Fe) as an efficient sorbent for dispersive micro-solid phase extraction of phenolic pollutants in environmental water samples

Author:
Tittaya Boontongto; Rodjana Burakham
Source:
Heliyon 2019 v.5 no.11 pp. e02848
ISSN:
2405-8440
Subject:
chemical species; coordination polymers; high performance liquid chromatography; phenol; sorbents
Abstract:
... This work proposes an application of amine-functionalized metal-organic framework (NH₂-MIL-101(Fe)) as sorbent for dispersive micro-solid phase extraction (D-μSPE) of ten priority phenolic pollutants. The sorbent was simply synthesized under facile condition. The entire D-μSPE process was optimized by studying the effect of experimental parameters affecting the extraction recovery of the target an ...
DOI:
10.1016/j.heliyon.2019.e02848
PubMed:
31763487
PubMed Central:
PMC6861588

42. Facile in situ synthesis of core–shell MOF@Ag nanoparticle composites on screen-printed electrodes for ultrasensitive SERS detection of polycyclic aromatic hydrocarbons

Author:
Dan Li; Xiukai Cao; Qinmei Zhang; Xingang Ren; Lei Jiang; Dawei Li; Wei Deng; Haitao Liu
Source:
Journal of materials chemistry A 2019 v.7 no.23 pp. 14108-14117
ISSN:
2050-7496
Subject:
Raman spectroscopy; adsorption; carbon electrodes; chemical species; coordination polymers; detection limit; nanoparticles; nanosilver; polycyclic aromatic hydrocarbons; quantitative analysis; screening; silver
Abstract:
... This paper reports the fabrication of a highly sensitive and reusable substrate for surface-enhanced Raman scattering (SERS) analysis. Core–shell metal–organic framework (MOF; HKUST-1)@Ag nanoparticles (NPs) are prepared on a screen-printed carbon electrode (SPCE) via in situ electrodeposition. The morphology and Ag coverage of core–shell structures can be easily controlled by electrodeposition po ...
DOI:
10.1039/c9ta03690c

43. Guest-Induced Ultrasensitive Detection of Multiple Toxic Organics and Fe³⁺ Ions in a Strategically Designed and Regenerative Smart Fluorescent Metal–Organic Framework

Author:
Ranadip Goswami; Shyama Charan Mandal; Biswarup Pathak; Subhadip Neogi
Source:
ACS applied materials & interfaces 2019 v.11 no.9 pp. 9042-9053
ISSN:
1944-8252
Subject:
aminophenols; antibiotics; chemical species; colorimetry; coordination polymers; density functional theory; encapsulation; energy transfer; fluorescence; fluorescent dyes; iron; ligands; metal ions; moieties; monitoring; nitrophenols; pollutants; prediction; simulation models; toxicity; zinc
Abstract:
... Luminescent metal–organic frameworks (LMOFs) are promising functional materials for sustainable applications, where an analyte-induced multiresponsive system with good recyclability is beneficial for detecting numerous lethal pollutants. We designed and built the dual-functionalized, three-dimensional Zn(II)–framework [Zn₃(bpg)₁.₅(azdc)₃]·(DMF)₅.₉·(H₂O)₁.₀₅ (CSMCRI-1) using an −OH group-integrated ...
DOI:
10.1021/acsami.8b20013

44. Luminescent Metal–Organic Framework for Lithium Harvesting Applications

Author:
Nathan D. Rudd; Yanyao Liu; Kui Tan; Feng Chen; Yves J. Chabal; Jing Li
Source:
ACS sustainable chemistry & engineering 2019 v.7 no.7 pp. 6561-6568
ISSN:
2168-0485
Subject:
Fourier transform infrared spectroscopy; X-ray photoelectron spectroscopy; adsorbents; adsorption; chemical species; coordination polymers; durability; fluorescence; harvesting; lithium; models; porosity; seawater; sodium; thermal stability
Abstract:
... We have synthesized a stable luminescent metal–organic framework (LMOF) through modification of an established Zr-based structure. The three-dimensional porous network of LMOF-321 represents a step forward in the development of robust, dual-ligand Zr-MOFs. This material is based on Zr₆-nodes, which underlie chemically and thermally stable frameworks. LMOF-321 exhibits notable durability in diverse ...
DOI:
10.1021/acssuschemeng.8b05018

45. Magnetic metal-organic frameworks nanocomposites for negligible-depletion solid-phase extraction of freely dissolved polyaromatic hydrocarbons

Author:
Yingjie Li; Xiaoxia Zhou; Lijie Dong; Yujian Lai; Shasha Li; Rui Liu; Jingfu Liu
Source:
Environmental pollution 2019 v.252 pp. 1574-1581
ISSN:
0269-7491
Subject:
absorbents; acetonitrile; adsorption; bioavailability; chemical species; coordination polymers; dissolved organic matter; iron oxides; magnetism; nanocomposites; pollutants; polycyclic aromatic hydrocarbons; porosity; solid phase extraction; sonication; surface area
Abstract:
... The bioavailability of a pollutant is usually evaluated based on its freely dissolved concentration (Cfree), which can be measured by negligible-depletion equilibrium extraction that is commonly suffered from long equilibration time. Herein, metal-organic framework (MOF) composites (Fe3O4@MIL-101), consists of a magnetic Fe3O4 core and a MIL-101 (Cr) MOF shell, is developed as sorbents for negligi ...
DOI:
10.1016/j.envpol.2019.04.137

46. Metal azolate framework-66-coated fiber for headspace solid-phase microextraction of polycyclic aromatic hydrocarbons

Author:
Manman Liu; Jinfei Liu; Chao Guo; Yan Li
Source:
Journal of chromatography 2019 v.1584 pp. 57-63
ISSN:
0021-9673
Subject:
chemical species; coordination polymers; desorption; fluorenes; gas chromatography; headspace analysis; mixing; naphthalene; phenanthrenes; salt concentration; solid phase microextraction; standard deviation; temperature
Abstract:
... Metal azolate frameworks (MAFs) as a subfamily of metal-organic frameworks (MOFs) have received much attention in analyzing organic volatiles owing to their remarkable structures. In this work, the headspace solid-phase microextraction (SPME) fiber based on MAF-66 has been fabricated by a layer-by-layer deposition method. To evaluate the performance of the MAF-66-coated fibers, polycyclic aromatic ...
DOI:
10.1016/j.chroma.2018.11.043

47. Metal-organic framework-1210(zirconium/cuprum) modified magnetic nanoparticles for solid phase extraction of benzophenones in soil samples

Author:
Wenqing Li; Rong Wang; Zilin Chen
Source:
Journal of chromatography 2019 pp. -
ISSN:
0021-9673
Subject:
benzophenones; chemical species; coatings; coordination polymers; copper; high performance liquid chromatography; hydrogen bonding; magnetism; nanoparticles; porosity; soil sampling; solid phase extraction; surface area; zirconium
Abstract:
... MOF-1210(Zr/Cu) is a new heterometallic cluster-based metal-organic framework material as well as a promising solid phase extraction coating material with ordered spatial structure, permanent high porosity and large specific surface area. In this work, a novel MOF-1210(Zr/Cu) modified magnetic nanoparticles (MNPs) was successfully prepared for magnetic solid phase extraction (MSPE) of benzophenone ...
DOI:
10.1016/j.chroma.2019.460403

48. A Metal–Organic Framework as Selectivity Regulator for Fe³⁺ and Ascorbic Acid Detection

Author:
Lan Guo; Yuan Liu; Rongmei Kong; Guang Chen; Zhe Liu; Fengli Qu; Lian Xia; Weihong Tan
Source:
Analytical chemistry 2019 v.91 no.19 pp. 12453-12460
ISSN:
1520-6882
Subject:
ascorbic acid; biosensors; blood serum; brain; chemical species; coordination polymers; electron transfer; fluorescence; homeostasis; humans; iron; photostability; rats; rhodamines; synthesis
Abstract:
... Ferric ion (Fe³⁺) plays a vital role in cellular homeostasis. However, the detection of Fe³⁺ with rhodamine B (RhB) has potential problems, such as poor selectivity and low photostability. To address these problems, we rationally designed an RhB@MOF nanocomposite-based “on–off–on” fluorescent switching nanoprobe for highly sensitive and selective detection of Fe³⁺ and ascorbic acid. This RhB@MOF n ...
DOI:
10.1021/acs.analchem.9b03143

49. Metal–organic framework-based affinity materials in proteomics

Author:
Adeela Saeed; Dilshad Hussain; Shafaq Saleem; Sehrish Mehdi; Rabia Javeed; Fahmida Jabeen; Muhammad Najam-ul-Haq
Source:
Analytical and bioanalytical chemistry 2019 v.411 no.9 pp. 1745-1759
ISSN:
1618-2642
Subject:
batch systems; bioreactors; chemical species; coordination polymers; desorption; detection limit; digestion; glycopeptides; ionization; ligands; mass spectrometry; pH; phosphopeptides; proteins; proteome; proteomics; sorbents; surface area
Abstract:
... Metal–organic frameworks (MOFs) are an eminent addition to materials science research because of their versatile properties due to which their applications are wide spread in proteomics. They are used in various fields due to their characteristics like higher surface area, specific symmetry, ease of modification, and availability of a variety of ligands. As affinity sorbents, they have shown highe ...
DOI:
10.1007/s00216-019-01610-x

50. Nanoscale Metal–Organic Framework Based Two-Photon Sensing Platform for Bioimaging in Live Tissue

Author:
Chan Yang; Kun Chen; Mei Chen; Xiaoxiao Hu; Shuang-Yan Huan; Lanlan Chen; Guosheng Song; Xiao-Bing Zhang
Source:
Analytical chemistry 2019 v.91 no.4 pp. 2727-2733
ISSN:
1520-6882
Subject:
biocompatibility; chemical bonding; chemical species; coordination polymers; fluorescent dyes; hydrogen sulfide; image analysis; models; moieties; photostability; signal-to-noise ratio; zinc
Abstract:
... Nanoscale metal–organic frameworks (NMOFs) have been applied for biomedical sensing in recent years. However, it is still a great challenge to construct a highly efficient NMOFs fluorescent probe for sensing in a biological system, with high signal-to-noise ratio, photostability, and deep tissue penetration. Herein, for the first time, we report the two-photon metal–organic framework (TP-MOF) as a ...
DOI:
10.1021/acs.analchem.8b04405