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1. Direct Measurement of Two-Photon Action Cross Section

Author:
Cabrera, Ricardo; Gabriel, Manuela; Estrada, Laura C.; Etchenique, Roberto
Source:
Analytical chemistry 2019 v.91 no.9 pp. 5968-5972
ISSN:
1520-6882
Subject:
fluorescein,   etc   ; microscopy; photolysis; serotonin;     Show all 4 Subjects
Abstract:
... We present a simple and fast methodology for measuring the two-photon (2P) action cross section of phototriggers. The method uses a standard 2P microscopy setup for both uncaging and detection and a set of lithographically made microcuvettes in order to reduce the total excitation volume and, thus, the photolysis time. The procedure does not need a standard and can be used for any caged compounds ...
DOI:
10.1021/acs.analchem.9b00392

2. Fluorescein propiolate: a propiolate-decorated fluorescent probe with remarkable selectivity towards cysteine

Author:
Karakuş, Erman; Sayar, Melike; Dartar, Suay; Kaya, Beraat Umur; Emrullahoğlu, Mustafa
Source:
Chemical communications 2019 v.55 no.34 pp. 4937-4940
ISSN:
1364-548X
Subject:
fluorescein,   etc   ; chemical reactions; cysteine; fluorescence;     Show all 4 Subjects
Abstract:
... A fluorescent probe decorated with an alkynyl ester unit (e.g. propiolate) displayed a selective turn-on type fluorescent response towards cysteine. Following a sequential addition–cyclisation pathway mediated by the addition of cysteine, the pre-fluorescent dye rapidly transformed into a new structure and induced a fluorescent response clearly observable with the naked eye. ...
DOI:
10.1039/c9cc01774g

3. Fluorescein and its derivatives: New coreactants for luminol chemiluminescence reaction and its application for sensitive detection of cobalt ion

Author:
Zhou, Yang; Du, Jianxiu; Wang, Zhen
Source:
Talanta 2019 v.191 pp. 422-427
ISSN:
0039-9140
Subject:
fluorescein,   etc   ; chemiluminescence; cobalt; detection limit; silica gel;     Show all 5 Subjects
Abstract:
... Fluorescein and its derivatives, including 4′,5′–dibromofluorescein, 2′,7′–dichlorofluorescein and 2′,4′,5′,7′–tetrabromofluorescein can be employed as efficient coreactants for luminol reaction. Under an alkaline condition they reacted with luminol to produce measureable chemiluminescence (CL) in the absence of any extra–oxidant. Cobalt ion (Co²⁺) significantly enhanced the CL emission of the rea ...
DOI:
10.1016/j.talanta.2018.09.007

4. Correction to: Photography-based method for assessing fluorescein clearance test in dogs

Author:
Oriá, Arianne Pontes; Rebouças, Miriam Flores; Filho, Emanoel Martins; de Assis Dórea Neto, Francisco; Raposo, Ana Cláudia; Sebbag, Lionel
Source:
BMC veterinary research 2018 v.14 no.1 pp. 305
ISSN:
1746-6148
Subject:
fluorescein,   etc   ; dogs; veterinary medicine;     Show all 3 Subjects
Abstract:
... The original article [1] contained an error whereby the respective legends of Figs. 2 and 3 were mistakenly interchanged. This error has now been amended. ...
DOI:
10.1186/s12917-018-1632-8

5. In Situ Partial Treatment of Single Cells by Laminar Flow in the “Open Space”

Author:
Zhang, Qiang; Mao, Sifeng; Khan, Mashooq; Feng, Shuo; Zhang, Wanling; Li, Weiwei; Lin, Jin-Ming
Source:
Analytical chemistry 2018 v.91 no.2 pp. 1644-1650
ISSN:
1520-6882
Subject:
fluorescein,   etc   ; laminar flow; solutes; staining;     Show all 4 Subjects
Abstract:
... Regional difference of a single cell is nonignorable, which means it is not precise to investigate the single cell as a homogeneous object. A convenient method to investigate cellular response to the treatment at the subcellular level is still needed. In this work, we developed a microfluidic approach for manipulating a partial region of a single adherent cell by generating a stable distribution o ...
DOI:
10.1021/acs.analchem.8b05313

6. Delivery of Cargo with a Bioelectronic Trigger

Author:
Hemmatian, Zahra; Jalilian, Elmira; Lee, Sangeun; Strakosas, Xenofon; Khademhosseini, Ali; Almutairi, Adah; Shin, Su Ryon; Rolandi, Marco
Source:
ACS applied materials & interfaces 2018 v.10 no.26 pp. 21782-21787
ISSN:
1944-8252
Subject:
fluorescein,   etc   ; fibroblasts; fluorescence; microparticles; pH;     Show all 5 Subjects
Abstract:
... Biological systems exchange information often with chemical signals. Here, we demonstrate the chemical delivery of a fluorescent label using a bioelectronic trigger. Acid-sensitive microparticles release fluorescin diacetate upon low pH induced by a bioelectronic device. Cardiac fibroblast cells (CFs) uptake fluorescin diacetate, which transforms into fluorescein and emits a fluorescent signal. Th ...
DOI:
10.1021/acsami.8b02724
CHORUS:
10.1021/acsami.8b02724

7. Click and photo-release dual-functional nucleic acid nanostructures

Author:
Valsangkar, Vibhav A.; Chandrasekaran, Arun Richard; Zhuo, Lifeng; Mao, Song; Lee, Goh Woon; Kizer, Megan; Wang, Xing; Halvorsen, Ken; Sheng, Jia
Source:
Chemical communications 2019 v.55 no.65 pp. 9709-9712
ISSN:
1364-548X
Subject:
fluorescein,   etc   ; DNA; RNA; chemical compounds; chemical reactions; drugs; nanomaterials;     Show all 7 Subjects
Abstract:
... We functionalize nucleic acid nanostructures with click chemistry (for attachment of cargos) and a photocleavable linker (for release). We demonstrate cargo attachment using a fluorescein dye and release using UV trigger from an RNA three-way junction, a DNA star motif and a DNA tetrahedron. Such multifunctional nucleic acid nanostructures have potential in targeted drug delivery. ...
DOI:
10.1039/c9cc03806j

8. Visible-light-induced condensation cyclization to synthesize benzimidazoles using fluorescein as a photocatalyst

Author:
Li, Zhuofei; Song, He; Guo, Rui; Zuo, Minghui; Hou, Chuanfu; Sun, Shouneng; He, Xin; Sun, Zhizhong; Chu, Wenyi
Source:
Green chemistry 2019 v.21 no.13 pp. 3602-3605
ISSN:
1463-9270
Subject:
fluorescein,   etc   ; aldehydes; benzimidazoles; catalytic activity; green chemistry; oxidants; photocatalysts;     Show all 7 Subjects
Abstract:
... A mild strategy for visible-light-induced synthesis of benzimidazoles was developed using aromatic aldehydes and o-phenylenediamines as substrates. The use of an organic dye, fluorescein, as an innoxious photocatalyst provided a mild and inexpensive catalytic system to synthesize a series of benzimidazoles in moderate to excellent yields. It was originally applied to this system to obtain benzimid ...
DOI:
10.1039/c9gc01359h

9. Cam-based vibration-counter-balanced laser-induced fluorescence scanner for multiplexed capillary detection

Author:
Li, Guanbin; Wang, Shili; Zhu, Zaifang; Chen, Apeng; Liu, Shaorong
Source:
Talanta 2019 v.198 pp. 398-403
ISSN:
0039-9140
Subject:
fluorescein,   etc   ; capillary electrophoresis; detection limit; fluorescence; proteins; scanners;     Show all 6 Subjects
Abstract:
... Laser-induced fluorescence (LIF) rotary scanners have been successfully used for multiplexed capillary detection. However, these scanners have a limitation that the capillaries have to be assembled in a circular format, which can be inconvenient for certain applications. A linear LIF scanner works well for flat parallel capillary arrays, but motor accelerations/decelerations (for direction changes ...
DOI:
10.1016/j.talanta.2019.01.128

10. Impact of absorbing and reflective boundaries on fractional derivative models: Quantification, evaluation and application

Author:
Zhang, Yong; Yu, Xiangnan; Li, Xicheng; Kelly, James F.; Sun, HongGuang; Zheng, Chunmiao
Source:
Advances in water resources 2019 v.128 pp. 129-144
ISSN:
0309-1708
Subject:
fluorescein,   etc   ; Peclet number; equations; models; rivers; solutes; statistical analysis; uncertainty;     Show all 8 Subjects
Abstract:
... Fractional-derivative models are promising tools for characterizing non-Fickian transport in heterogeneous media. Most fractional models utilize an infinite domain, although realistic problems occur on bounded domains. To quantify the impact of a finite or semi-infinite boundary on non-Fickian transport in natural geological media, this study evaluates three representative fractional advection-dis ...
DOI:
10.1016/j.advwatres.2019.02.011

11. Phosphinate-containing rhodol and fluorescein scaffolds for the development of bioprobes

Author:
Fang, Yuan; Good, Gillian N.; Zhou, Xinqi; Stains, Cliff I.
Source:
Chemical communications 2019 v.55 no.42 pp. 5962-5965
ISSN:
1364-548X
Subject:
fluorescein,   etc   ; chemical reactions; color; enzyme activity; esterases; image analysis; xanthenes;     Show all 7 Subjects
Abstract:
... A series of phosphinate-containing rhodol and fluorescein dyes are disclosed. These new fluorophores increase the color palette of phosphinate-based xanthenes in the far-red spectral region. The new chemical functionality of these scaffolds is leveraged to produce a sensitive, no-wash imaging probe for cellular esterase activity. The reported phosphinate-containing dyes provide platforms for the f ...
DOI:
10.1039/c9cc02492a

12. Red-to-blue photon up-conversion with high efficiency based on a TADF fluorescein derivative

Author:
Chen, Wenlong; Song, Fengling; Tang, Shanliang; Hong, Gaobo; Wu, Yingnan; Peng, Xiaojun
Source:
Chemical communications 2019 v.55 no.30 pp. 4375-4378
ISSN:
1364-548X
Subject:
fluorescein,   etc   ; chemical compounds; chemical reactions; photons; photosensitizing agents;     Show all 5 Subjects
Abstract:
... A new photon up-conversion system with a TADF fluorescein derivative as a photosensitizer was developed to achieve a quite large anti-Stokes shift from red to blue with a fairly high up-conversion emission quantum yield. This TADF photosensitizer has a very small ΔEST to provide a 207 nm anti-Stokes shift photon up-conversion. Meanwhile, it has a quite long triplet state lifetime (22.11 μs) and a ...
DOI:
10.1039/c9cc01868a

13. A novel highly specific and ultrasensitive fluorescent probe for monitoring hypochlorous acid and its application in live cells

Author:
Li, Xinyuan; Wu, Liu; Zhao, Ziyang; Liu, Caiyun; Zhu, Baocun
Source:
RSC advances 2019 v.9 no.8 pp. 4659-4664
ISSN:
2046-2069
Subject:
fluorescein,   etc   ; chemical species; image analysis; immune system; monitoring;     Show all 5 Subjects
Abstract:
... Based on the important role of hypochlorous acid (HOCl) in the immune system and numerous physiological processes, the detection of intracellular basal HOCl is of significant interest. In this work, we present a simple thiocarbamate-protected fluorescein fluorescent probe, TCFL, for imaging basal HOCl in live cells. Surprisingly, probe TCFL could determine HOCl quantitatively in a large concentrat ...
DOI:
10.1039/c8ra09551e

14. A sandwich-type polyoxometalate for efficient noble-metal-free hydrogen evolution upon visible light irradiation

Author:
Zhang, Guan-Hua; Yang, Wen-Bin; Wu, Wei-Ming; Wu, Xiao-Yuan; Zhang, Lei; Kuang, Xiao-Fei; Wang, Sa-Sa; Lu, Can-Zhong
Source:
Journal of catalysis 2019 v.369 pp. 54-59
ISSN:
0021-9517
Subject:
fluorescein,   etc   ; hydrogen production; irradiation; photosensitizing agents; spectral analysis; triethylamine;     Show all 6 Subjects
Abstract:
... A novel sandwich-type polyoxometalate, [NiII4(H2O)2(TiW9O34)2]12−(Ni4Ti2), has been developed for noble-metal-free hydrogen evolution reaction (HER). Employing a simple three-component catalytic system, with triethylamine as sacrificial donor and fluorescein as photosensitizer, Ni4Ti2 exhibits outstanding efficiency in hydrogen evolution upon visible light irradiation. The turnover number (TON) of ...
DOI:
10.1016/j.jcat.2018.08.023

15. Electroosmotic Effects on Sample Concentration at the Interface of a Micro/Nanochannel

Author:
Chun, Honggu
Source:
Analytical chemistry 2017 v.89 no.17 pp. 8924-8930
ISSN:
1520-6882
Subject:
fluorescein,   etc   ; electroosmosis; electrophoresis; glass;     Show all 4 Subjects
Abstract:
... Electroosmotic effect on electropreconcentration of analytes was investigated at the micro/nanochannel interface for a series of 1-D glass nanochannels with depths of 72, 54, 29, and 9 nm. The electric double layer approaches overlap conditions as the nanochannel depth decreases, suppressing the electroosmotic flow. The nanochannels’ electroosmotic flows (μₑₒⁿᵃⁿᵒ) were determined and compared to t ...
DOI:
10.1021/acs.analchem.7b01392

16. Correction: Fluorescein hydrazone-based supramolecular architectures, molecular recognition, sequential logic operation and cell imaging

Author:
Tripathi, Kamini; Rai, Abhishek; Yadav, Amarish Kumar; Srikrishna, Saripella; Kumari, Niraj; Mishra, Lallan
Source:
RSC advances 2017 v.7 no.19 pp. 11743-11744
ISSN:
2046-2069
Subject:
fluorescein,   etc   ; image analysis;     Show all 2 Subject
Abstract:
... Correction for ‘Fluorescein hydrazone-based supramolecular architectures, molecular recognition, sequential logic operation and cell imaging’ by Kamini Tripathi et al., RSC Adv., 2017, 7, 2264–2272. ...
DOI:
10.1039/c7ra90015e

17. Chain diffusion and exchange during build-up of hydrogen-bonded polymer complex film

Author:
Rehan, Kiran; Su, Chao; Nie, Jing; Xu, Jian; Yang, Shuguang
Source:
Colloids and surfaces 2018 v.539 pp. 148-153
ISSN:
0927-7757
Subject:
fluorescein,   etc   ; absorbance; colloids; hydrogen bonding; polyacrylic acid;     Show all 5 Subjects
Abstract:
... Poly(vinylpyrrolidone) (PVPON) and poly(acrylic acid) (PAA) were layer-by-layer (LbL) assembled to prepare thin film based on hydrogen bonding. A series of simple experiments were designed to investigate polymer chain diffusion and exchange behaviors of hydrogen-bonded PVPON/PAA film. PAA was labeled with fluorescence dye, fluorescein amine (FAM). The prepared (PVPON/PAA)20 films were immersed int ...
DOI:
10.1016/j.colsurfa.2017.12.012

18. Efficient degradation of selected polluting dyes using the tetrahydroxoargentate ion, Ag(OH)4−, in alkaline media

Author:
Zamora-Garcia, Ileana R.; Alatorre-Ordaz, Alejandro; Ibanez, Jorge G.; Torres-Elguera, Julio C.; Wrobel, Kazimierz; Gutierrez-Granados, Silvia
Source:
Chemosphere 2018 v.191 pp. 400-407
ISSN:
0045-6535
Subject:
fluorescein,   etc   ; mineralization; oxidation; risk; silver; toxicity;     Show all 6 Subjects
Abstract:
... The use of soluble and highly oxidizing Ag(III) in the form of the tetrahydroxoargentate ion Ag(OH)4− is reported for the oxidation of surrogate organic recalcitrant dyes (i.e., rhodamine 6G (Rh6G) and fluorescein (Fl)). The possible use of Ag(OH)4− for the treatment of these and other refractory compounds is assessed. Such dyes were selected due to their common occurrence, stability, refractory n ...
DOI:
10.1016/j.chemosphere.2017.10.041

19. Direct quantification of surface coverage of antibody in IgG-Gold nanoparticles conjugates

Author:
Zhang, Lu; Hu, David; Salmain, Michèle; Liedberg, Bo; Boujday, Souhir
Source:
Talanta 2019 v.204 pp. 875-881
ISSN:
0039-9140
Subject:
fluorescein; fluorescein-5-isothiocyanate,   etc   ; antibodies; colloids; enzyme-linked immunosorbent assay; fluorescence; fluorescence emission spectroscopy; immunoglobulin G; immunosensors; models; nanogold; nanoparticles; rabbits; surface plasmon resonance;     Show all 14 Subjects
Abstract:
... It is of paramount importance to be able to accurately quantify surface coverage of antibodies on gold nanoparticles (AuNP) so as to optimise the sensitivity of AuNP-based immunosensors. Herein, we developed a fluorescence-based method to directly quantify rabbit immunoglobulin G (IgG) used as antibody model bound to AuNP. Rabbit IgG was first labelled with fluorescein-5-isothiocyanate (FITC) prio ...
DOI:
10.1016/j.talanta.2019.05.104

20. Synthesis of seminaphtho-phospha-fluorescein dyes based on the consecutive arylation of aryldichlorophosphines

Author:
Fukazawa, Aiko; Usuba, Junichi; Adler, Raúl A.; Yamaguchi, Shigehiro
Source:
Chemical communications 2017 v.53 no.61 pp. 8565-8568
ISSN:
1364-548X
Subject:
fluorescein,   etc   ; arylation; chemical compounds; fluorescence;     Show all 4 Subjects
Abstract:
... Seminaphtho-phospha-fluorescein (SNAPF), a phosphine-oxide-containing unsymmetric fluorescein dye, was synthesized based on the consecutive arylation of PhPCl₂, followed by Friedel–Crafts cyclization. The resulting SNAPF exhibited several attractive photophysical properties including an intense fluorescence in the NIR region and a large Stokes shift. ...
DOI:
10.1039/c7cc04323f