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1. Advances in colloidal manipulation and transport via hydrodynamic interactions

Author:
Martínez-Pedrero, F.; Tierno, P.
Source:
Journal of colloid and interface science 2018 v.519 pp. 296-311
ISSN:
0021-9797
Subject:
advection; colloids; hydrodynamics; microstructure; solvents
Abstract:
... In this review article, we highlight many recent advances in the field of micromanipulation of colloidal particles using hydrodynamic interactions (HIs), namely solvent mediated long-range interactions. At the micrsocale, the hydrodynamic laws are time reversible and the flow becomes laminar, features that allow precise manipulation and control of colloidal matter. We focus on different strategies ...
DOI:
10.1016/j.jcis.2018.02.062

2. An all-water-based system for robust superhydrophobic surfaces

Author:
Liu, Mingming; Hou, Yuanyuan; Li, Jing; Tie, Lu; Guo, Zhiguang
Source:
Journal of colloid and interface science 2018 v.519 pp. 130-136
ISSN:
0021-9797
Subject:
abrasives; adhesives; aluminum phosphate; energy; hydrophobicity; nanoparticles; pH; pollution; polytetrafluoroethylene; prices; sand; solvents; spraying; strength (mechanics); temperature; ultraviolet radiation; zinc oxide
Abstract:
... Superhydrophobic surfaces with micro-/nanohierarchical structures are mechanically weak. Generally, organic solvents are used to dissolve or disperse organic adhesives and modifiers to enhance the mechanical strength of superhydrophobic surfaces. In this work, an all-water-based spraying solution is developed for the preparation of robust superhydrophobic surfaces, which contains ZnO nanoparticles ...
DOI:
10.1016/j.jcis.2018.02.055

3. A new facile approach to prepare reduced graphene oxide and MoO2/reduced graphene oxide as electrode materials for oxygen reduction reactions

Author:
Li, Feihui; Li, Lingzhi; Wang, Wei; Gao, Jianping
Source:
Journal of colloid and interface science 2018 v.519 pp. 194-202
ISSN:
0021-9797
Subject:
catalytic activity; electrochemistry; electrodes; fuel cells; graphene oxide; ions; molybdenum; pH; reducing agents
Abstract:
... A facile one-pot method for the formation of MoO2/RGO has been established using Mo particles as both the reductant for graphene oxide (GO) and as the Mo source. The Mo powder efficiently reduced the GO under acidic conditions to give reduced GO (RGO) and Mo ions. These ions were then transformed into MoO2 and MoO2/RGO composites were formed by tuning the pH of the solution. Other variables such a ...
DOI:
10.1016/j.jcis.2017.10.054

4. Carbohydrate gel beads as model probes for quantifying non-ionic and ionic contributions behind the swelling of delignified plant fibers

Author:
Karlsson, Rose-Marie Pernilla; Larsson, Per Tomas; Yu, Shun; Pendergraph, Samuel Allen; Pettersson, Torbjörn; Hellwig, Johannes; Wågberg, Lars
Source:
Journal of colloid and interface science 2018 v.519 pp. 119-129
ISSN:
0021-9797
Subject:
aqueous solutions; cellulose; electrolytes; gels; ionic strength; models; nuclear magnetic resonance spectroscopy; pH; plant fibers; polymers; small-angle X-ray scattering; water uptake
Abstract:
... Macroscopic beads of water-based gels consisting of uncharged and partially charged β-(1,4)-d-glucan polymers were developed to be used as a novel model material for studying the water induced swelling of the delignified plant fiber walls. The gel beads were prepared by drop-wise precipitation of solutions of dissolving grade fibers carboxymethylated to different degrees. The internal structure wa ...
DOI:
10.1016/j.jcis.2018.02.052

5. Characterization of the complexation phenomenon and biological activity in vitro of polyplexes based on Tetronic T901 and DNA

Author:
Cambón, Adriana; Villar-Alvarez, Eva; Alatorre-Meda, Manuel; Pardo, Alberto; Hiram, Baltazar; Barbosa, Silvia; Taboada, Pablo; Mosquera, Víctor
Source:
Journal of colloid and interface science 2018 v.519 pp. 58-70
ISSN:
0021-9797
Subject:
DNA; composite polymers; cytotoxicity; electrostatic interactions; fluorescein; fluorescence; human cell lines; micelles; pH; temperature; transfection
Abstract:
... The complexation process and underlying mechanisms that rule the interaction of DNA with the cationic block copolymer Tetronic T901 to form polyplexes and their potential transfection efficiency have been studied under different solution conditions. We noted that T901 favors the formation of self-assembled structures with partially condensed DNA at smaller polymer concentrations than other Pluroni ...
DOI:
10.1016/j.jcis.2018.02.051

6. Concentration effect of Quillaja saponin – Co-surfactant mixtures on emulsifying properties

Author:
Reichert, Corina L.; Salminen, Hanna; Badolato Bönisch, Gabriela; Schäfer, Christian; Weiss, Jochen
Source:
Journal of colloid and interface science 2018 v.519 pp. 71-80
ISSN:
0021-9797
Subject:
Quillaja; additive effect; adsorption; droplets; eggs; emulsifying properties; emulsions; lecithins; pH; particle size; pea protein; rapeseed; saponins; surface tension; surfactants
Abstract:
... This study examined the emulsifying properties of mixed surfactant systems of Quillaja saponins and food-grade co-surfactants (Na-caseinate, pea protein, rapeseed lecithin, and egg lecithin). We hypothesized to these mixtures may build mixed adsorption layers and thus enhance emulsion stabilization.Oil-in-water emulsions (10%, pH 7) were prepared with different concentrations of co-surfactants (0. ...
DOI:
10.1016/j.jcis.2018.01.105

7. Deconvoluting the effects of surface chemistry and nanoscale topography: Pseudomonas aeruginosa biofilm nucleation on Si-based substrates

Author:
Zhang, Jing; Huang, Jinglin; Say, Carmen; Dorit, Robert L.; Queeney, K.T.
Source:
Journal of colloid and interface science 2018 v.519 pp. 203-213
ISSN:
0021-9797
Subject:
Pseudomonas aeruginosa; anisotropy; bacteria; bacterial adhesion; biofilm; fluorescence; hydrophilicity; hydrophobicity; nanomaterials; topography
Abstract:
... The nucleation of biofilms is known to be affected by both the chemistry and topography of the underlying substrate, particularly when topography includes nanoscale (<100 nm) features. However, determining the role of topography vs. chemistry is complicated by concomitant variation in both as a result of typical surface modification techniques. Analyzing the behavior of biofilm-forming bacteria ex ...
DOI:
10.1016/j.jcis.2018.02.068

8. Effect of pH on the microstructure of β-Ga2O3 and its enhanced photocatalytic activity for antibiotic degradation

Author:
Liu, Jin; Lu, Wei; Zhong, Qian; Wu, Hongzhang; Li, Yunlin; Li, Lili; Wang, Zhenling
Source:
Journal of colloid and interface science 2018 v.519 pp. 255-262
ISSN:
0021-9797
Subject:
antibiotics; microstructure; oxygen; pH; photocatalysis; photoluminescence; pollutants; semiconductors; superoxide anion; temperature; trapping
Abstract:
... Semiconductor photocatalysis has become the focus of recent research on antibiotic treatment because it is a green and efficient technology. In this study, α-GaOOH with several novel microstructures has been synthesized at a low temperature and its subsequent thermal transformation. The influence of pH on the synthesis of α-GaOOH is studied, and the results indicate that pH played an important rol ...
DOI:
10.1016/j.jcis.2018.02.070

9. Electro-elastoviscous response of polyaniline functionalized nano-porous zeolite based colloidal dispersions

Author:
Chattopadhyay, Ankur; Rani, Poonam; Srivastava, Rajendra; Dhar, Purbarun
Source:
Journal of colloid and interface science 2018 v.519 pp. 242-254
ISSN:
0021-9797
Subject:
coatings; colloids; dispersions; electric field; electroviscosity; hysteresis; models; nanocrystals; nanoparticles; oils; silicone; synthesis; viscoelasticity; zeolites
Abstract:
... The present article discusses the typical influence of grafted conducting polymers in the mesoscale pores of dielectric particles on the static and dynamic electrorheology and electro-viscoelastic behavior of corresponding colloids. Nanocrystalline meso-nanoporous zeolite has been prepared by chemical synthesis and subsequently polyaniline (PANI) coating has been implemented. Electrorheological (E ...
DOI:
10.1016/j.jcis.2018.02.066

10. Elucidating Bauhinia variegata lectin/phosphatidylcholine interactions in lectin-containing liposomes

Author:
dos Santos, Marinalva Cardoso; Kroetz, Thais; Dora, Cristiana Lima; Giacomelli, Fernando Carlos; Frizon, Tiago Elias Allievi; Pich, Claus Tröger; da Silva Pinto, Luciano; Soares, Amanda Sigal; Rodembusch, Fabiano Severo; de Lima, Vânia Rodrigues; Dal-Bó, Alexandre Gonçalves
Source:
Journal of colloid and interface science 2018 v.519 pp. 232-241
ISSN:
0021-9797
Subject:
Bauhinia variegata; Fourier transform infrared spectroscopy; carbohydrates; cell membranes; choline; circular dichroism spectroscopy; lectins; nanoparticles; nuclear magnetic resonance spectroscopy; phosphatidylcholines; spectral analysis; thermodynamics
Abstract:
... Investigations focused on the interactions of nanoparticles with lectins are relevant since it is well accepted that such proteins can be recognized by carbohydrates as parts of cell membranes. This can ultimately enhance the cellular uptake of the produced assemblies. In this framework, the physical interactions of phosphatidylcholine (PC) liposomes and the Bauhinia variegate lectin (BVL) are rep ...
DOI:
10.1016/j.jcis.2018.02.028

11. Enhanced photocatalytic activity of Bi12O17Cl2 nano-sheets via surface modification of carbon nanotubes as electron carriers

Author:
Shi, Lei; Ma, Jinying; Yao, Lizhu; Cui, Lishuang; Qi, Wei
Source:
Journal of colloid and interface science 2018 v.519 pp. 1-10
ISSN:
0021-9797
Subject:
X-ray diffraction; X-ray photoelectron spectroscopy; carbon nanotubes; chemical structure; composite materials; electric current; electrons; energy; hot water treatment; nanosheets; optical properties; photocatalysis; photoluminescence; reaction mechanisms; rhodamines; scanning electron microscopy; transmission electron microscopy; trapping
Abstract:
... A novel carbon nanotubes modified Bi12O17Cl2 composite (CNTs/Bi12O17Cl2) was prepared via hydrothermal method. The chemical structures, morphologies, optical properties of the synthesized samples were revealed by XRD, XPS, SEM, TEM, BET and UV–vis DRS measurements. The photocatalytic activity of the CNTs/Bi12O17Cl2 composite was evaluated with degradation reaction of rhodamine B (RhB) under visibl ...
DOI:
10.1016/j.jcis.2018.02.056

12. Fabrication of ultrathin MIL-96(Al) films and study of CO2 adsorption/desorption processes using quartz crystal microbalance

Author:
Andrés, Miguel A.; Benzaqui, M.; Serre, C.; Steunou, N.; Gascón, I.
Source:
Journal of colloid and interface science 2018 v.519 pp. 88-96
ISSN:
0021-9797
Subject:
adsorption; aluminum; carbon dioxide; chloroform; coordination polymers; desorption; dispersions; liquid-air interface; moieties; nanoparticles; porous media; quartz; quartz crystal microbalance; storage conditions
Abstract:
... This contribution reports the fabrication and characterization of ultrathin films of nanoparticles of the water stable microporous Al tricarboxylate metal organic framework MIL-96(Al). The preparation of MOF dispersions in chloroform has been optimized to obtain dense monolayer films of good quality, without nanoparticle agglomeration, at the air-water interface that can be deposited onto solid su ...
DOI:
10.1016/j.jcis.2018.02.058

13. Facile fabrication of organic dyed polymer nanoparticles with aggregation-induced emission using an ultrasound-assisted multicomponent reaction and their biological imaging

Author:
Jiang, Ruming; Liu, Meiying; Huang, Hongye; Mao, Liucheng; Huang, Qiang; Wen, Yuanqing; Cao, Qian-yong; Tian, Jianwen; Zhang, Xiaoyong; Wei, Yen
Source:
Journal of colloid and interface science 2018 v.519 pp. 137-144
ISSN:
0021-9797
Subject:
biocompatibility; composite polymers; crosslinking; dispersibility; dyes; fluorescence; hydrophilicity; hydrophobicity; image analysis; industry; micelles; nanoparticles; photostability; ultrasonic treatment
Abstract:
... Ultrasound as a powerful technique has increasingly been used in both industry and academia in recent years. Herein, an efficient approach to the ultrafast preparation of cross-linked fluorescent copolymers (PEGMA-AEMA-TPE) with aggregation-induced emission (AIE) via an ultrasound-assisted multicomponent reaction (MCR) is described. A number of characterization techniques were carried out to certi ...
DOI:
10.1016/j.jcis.2018.01.084

14. Flexible and transparent films consisting of lanthanide complexes for ratiometric luminescence thermometry

Author:
Yang, Daqing; Liu, Dexi; Tian, Chunkun; Wang, Song; Li, Huanrong
Source:
Journal of colloid and interface science 2018 v.519 pp. 11-17
ISSN:
0021-9797
Subject:
emissions factor; europium; luminescence; temperature; terbium; thermal stability; thermometers
Abstract:
... Herein, a flexible and transparent film consisting Eu3+/Tb3+ lanthanide complexes and poly(methylmethacrylate) was constructed via solution casting method, and further developed as a ratiometric luminescent thermometer with an excellent linear response to temperature variation from 77 to 297 K. The thermometer displays higher photo- and thermostability than corresponding pure complexs. Based on th ...
DOI:
10.1016/j.jcis.2018.02.025

15. Hydrogen bond-induced bright enhancement of fluorescent silica cross-linked micellar nanoparticles

Author:
Gai, Fangyuan; Fan, Mengmeng; Yang, Xudong; Hao, Ce; Ao, Yuhui; Duan, Chunying; Liu, Yunling; Huo, Qisheng
Source:
Journal of colloid and interface science 2018 v.519 pp. 224-231
ISSN:
0021-9797
Subject:
benzaldehyde; color; crosslinking; density functional theory; encapsulation; fluorescence; fluorescence emission spectroscopy; hydrogen; nanoparticles; optical properties; silica; solvents; water solubility
Abstract:
... This work demonstrated the synthesis and design of ultra-bright and ultra-small fluorescent nanoparticles, which were prepared by encapsulating 4-(diphenylamino)benzaldehyde (DPB) in silica cross-linked micellar nanoparticles (SCMNPs). The DPB-doped SCMNPs (DPB-SCMNPs) exhibited ultra-bright fluorescence in an aqueous medium that was 22 times brighter than that of free DPB molecules in an organic ...
DOI:
10.1016/j.jcis.2018.02.064

16. Hydrothermal preparation of hierarchical ZIF-L nanostructures for enhanced CO2 capture

Author:
Ding, Bing; Wang, Xianbiao; Xu, Yongfei; Feng, Shaojie; Ding, Yi; Pan, Yang; Xu, Weifan; Wang, Huanting
Source:
Journal of colloid and interface science 2018 v.519 pp. 38-43
ISSN:
0021-9797
Subject:
adsorption; carbon dioxide; hot water treatment; nanomaterials; surface area; temperature
Abstract:
... A zeolitic imidazolate framework (ZIF-L) with hierarchical morphology was synthesized through hydrothermal method. The hierarchical product consists of ZIF-L leaves with length of several micrometers, width of 1 ∼ 2 μm and thickness of ∼300 nm cross connected symmetrically. It was found that the hydrothermal temperature is crucial for the formation of such hierarchical nanostructure. The formation ...
DOI:
10.1016/j.jcis.2018.02.047

17. Impact of the strategy adopted for drug loading in nonporous silica nanoparticles on the drug release and cytotoxic activity

Author:
Riva, Benedetta; Bellini, Michela; Corvi, Eleonora; Verderio, Paolo; Rozek, Ewa; Colzani, Barbara; Avvakumova, Svetlana; Radeghieri, Annalisa; Rizzuto, Maria Antonietta; Morasso, Carlo; Colombo, Miriam; Prosperi, Davide
Source:
Journal of colloid and interface science 2018 v.519 pp. 18-26
ISSN:
0021-9797
Subject:
biocompatibility; biodegradability; biomimetics; cytotoxicity; doxorubicin; drug therapy; nanocarriers; nanoparticles; neoplasms; silica
Abstract:
... Nanoparticles are normally classified as “hard”, mainly consisting of metal or metal oxide cores, or “soft”, including polymer-based, liposomes and biomimetic nanoparticles. Soft nanoparticles have been studied in depth for drug formulation and therapeutic delivery applications, albeit hard nanoparticles may offer easier synthesis, smaller size and more effective tumor penetration. Among them, sil ...
DOI:
10.1016/j.jcis.2018.02.040

18. Interaction of thermal responsive NIPAM nanogels with model lipid monolayers at the air-water interface

Author:
Sun, Huihui; Resmini, Marina; Zarbakhsh, Ali
Source:
Journal of colloid and interface science 2018 v.519 pp. 97-106
ISSN:
0021-9797
Subject:
ceramides; cholesterol; crosslinking; fatty acids; liquid-air interface; microscopy; models; nanoparticles; neutron diffraction; solubilization; temperature
Abstract:
... Understanding the interaction of nanoparticles (NP) with ceramide lipids is important in developing strategies to overcome the formidable obstacle that is skin. This paper presents studies of interactions between N-isopropylacrylamide nanogels, crosslinked with 30% N,N′-methylenebisacrylamide, and model ceramide lipid monolayers at the air-water interface as a function of temperature. In the case ...
DOI:
10.1016/j.jcis.2018.02.050

19. Interfacial rheology of low interfacial tension systems using a new oscillating spinning drop method

Author:
Zamora, José M.; Marquez, Ronald; Forgiarini, Ana M.; Langevin, Dominique; Salager, Jean-Louis
Source:
Journal of colloid and interface science 2018 v.519 pp. 27-37
ISSN:
0021-9797
Subject:
liquids; loss modulus; oils; rheology; rheometers; spinning; storage modulus; surface tension; surfactants
Abstract:
... When surfactants adsorb at liquid interfaces, they not only decrease the surface tension, they confer rheological properties to the interfaces. There are two types of rheological parameters associated to interfacial layers: compression and shear. The elastic response is described by a storage modulus and the dissipation by a loss modulus or equivalently a surface viscosity. Various types of instru ...
DOI:
10.1016/j.jcis.2018.02.015

20. Interfacing superhydrophobic silica nanoparticle films with graphene and thermoplastic polyurethane for wear/abrasion resistance

Author:
Naderizadeh, Sara; Athanassiou, Athanassia; Bayer, Ilker S.
Source:
Journal of colloid and interface science 2018 v.519 pp. 285-295
ISSN:
0021-9797
Subject:
abrasion resistance; aluminum; annealing; graphene; hydrophobicity; liquids; nanocomposites; nanoparticles; polyurethanes; silica; solvents; temperature; texture; thermoplastics; welding
Abstract:
... Nanoparticle films are one of the most suitable platforms for obtaining sub-micrometer and nanometer dual-scale surface texture required for liquid repellency. The assembly of superhydrophobic nanoparticles into conformal and strongly adherent films having abrasion-induced wear resistance still poses a significant challenge. Various techniques have been developed over the years to render nanoparti ...
DOI:
10.1016/j.jcis.2018.02.065

21. Ionic liquid-induced double regulation of carbon quantum dots modified bismuth oxychloride/bismuth oxybromide nanosheets with enhanced visible-light photocatalytic activity

Author:
Hu, Qingsong; Ji, Mengxia; Di, Jun; Wang, Bin; Xia, Jiexiang; Zhao, Yaping; Li, Huaming
Source:
Journal of colloid and interface science 2018 v.519 pp. 263-272
ISSN:
0021-9797
Subject:
absorption; bismuth; bisphenol A; carbon quantum dots; ciprofloxacin; electron paramagnetic resonance spectroscopy; ionic liquids; irradiation; nanosheets; photocatalysis; photocatalysts; photolysis; rhodamines; superoxide anion; tetracycline
Abstract:
... The efficient separation of photoexcited electron-hole pairs acts as a significant factor and challenge for the enhanced photocatalytic activity of the photocatalyst. To pursue higher photocatalytic activity, carbon quantum dots (CQDs) modified bismuth oxychloride (BiOCl)/bismuth oxybromide (BiOBr) nanosheet photocatalyst has first been synthesized via an in situ ionic liquid-induced strategy. The ...
DOI:
10.1016/j.jcis.2018.02.057

22. Modelling of dye adsorption from aqueous solution on polyaniline/carboxymethyl cellulose/TiO2 nanocomposites

Author:
Tanzifi, Marjan; Tavakkoli Yaraki, Mohammad; Karami, Mojtaba; Karimi, Samira; Dehghani Kiadehi, Asieh; Karimipour, Kianoush; Wang, Shaobin
Source:
Journal of colloid and interface science 2018 v.519 pp. 154-173
ISSN:
0021-9797
Subject:
adsorbents; adsorption; aqueous solutions; dyes; nanocomposites; neural networks; neurons; pH; polymerization; polymers; response surface methodology; sorption isotherms; temperature
Abstract:
... In the present study, a polyaniline/carboxymethyl cellulose/TiO2 nanocomposite (PAn/CMC/TiO2) was synthesized by a polymerization method, and was used for adsorption of Congo Red from aqueous solution. The effects of operational parameters of the adsorption process including pH, initial dye concentration, temperature, adsorbent dosage, and adsorption time on adsorption efficiency were investigated ...
DOI:
10.1016/j.jcis.2018.02.059

23. Nanoparticle-enabled delivery of surfactants in porous media

Author:
Nourafkan, Ehsan; Hu, Zhongliang; Wen, Dongsheng
Source:
Journal of colloid and interface science 2018 v.519 pp. 44-57
ISSN:
0021-9797
Subject:
adsorption; alcohols; drug delivery systems; drugs; energy; nanomedicine; nanoparticles; oils; porous media; remediation; salinity; sandstone; sulfonic acid; surfactants; titanium dioxide
Abstract:
... The adsorption of surfactants on the reservoir rocks surface is a serious issue in many energy and environment related areas. Learning from the concept of drug delivery in the nano-medicine field, this work proposes and validates the concept of using nanoparticles to deliver a mixture of surfactants into a porous medium. TiO2 nanoparticles (NPs) are used as carriers for a blend of surfactants mixt ...
DOI:
10.1016/j.jcis.2018.02.032

24. Non-lamellar lyotropic liquid crystalline nanoparticles enhance the antibacterial effects of rifampicin against Staphylococcus aureus

Author:
Tran, Nhiem; Hocquet, Marion; Eon, Blandine; Sangwan, Parveen; Ratcliffe, Julian; Hinton, Tracey M.; White, Jacinta; Ozcelik, Berkay; Reynolds, Nicholas P.; Muir, Benjamin W.
Source:
Journal of colloid and interface science 2018 v.519 pp. 107-118
ISSN:
0021-9797
Subject:
Staphylococcus aureus; adverse effects; antibacterial properties; antibiotic resistance; atomic force microscopy; bacteria; cell viability; cytotoxicity; electrostatic interactions; energy transfer; fluorescence microscopy; lipids; liquids; minimum inhibitory concentration; nanocarriers; nanomedicine; nanoparticles; pH; rifampicin; solubility; transmission electron microscopy
Abstract:
... The fight against infection in an era of emerging antibiotic resistant bacteria is one of the grandest scientific challenges facing society today. Nano-carriers show great promise in improving the antibacterial activity of antibiotics as they are able to enhance their solubility, provide sustained release and reduce toxic side effects via specifically targeting infection sites. Here, we investigat ...
DOI:
10.1016/j.jcis.2018.02.048

25. Remarkably enhanced activity and substrate affinity of lipase covalently bonded on zwitterionic polymer-grafted silica nanoparticles

Author:
Zhang, Chunyu; Dong, Xiaoyan; Guo, Zheng; Sun, Yan
Source:
Journal of colloid and interface science 2018 v.519 pp. 145-153
ISSN:
0021-9797
Subject:
Candida rugosa; acetates; biocatalysts; carboxylic ester hydrolases; chemical bonding; enzymatic reactions; enzyme activity; enzyme kinetics; enzyme substrates; hydrolysis; immobilized enzymes; industrial applications; mandelic acid; nanoparticles; pH; palmitates; polymers; silica; storage quality; temperature; thermal stability; zwitterions
Abstract:
... Enzymes are promising biocatalysts for the production or degradation of chemical compounds, but low stabilities of free enzymes restrict their industrial applications. Therefore, development of effective immobilization methods to maintain or increase enzyme activity and stability remains a challenge. In this work, a novel support made of zwitterionic polymer-grafted silica nanoparticles (p-SNPs) w ...
DOI:
10.1016/j.jcis.2018.02.039

26. Selective and adsorptive removal of anionic dyes and CO2 with azolium-based metal-organic frameworks

Author:
Ezugwu, Chizoba I.; Asraf, Md. Ali; Li, Xiao; Liu, Shengwei; Kao, Chih-Ming; Zhuiykov, Serge; Verpoort, Francis
Source:
Journal of colloid and interface science 2018 v.519 pp. 214-223
ISSN:
0021-9797
Subject:
Fourier transform infrared spectroscopy; adsorption; aqueous solutions; carbon dioxide; coordination polymers; dyes; ligands; liquids; methane; methyl orange; moieties; nickel; photocatalysis; scanning electron microscopy; sodium; thermogravimetry; transmission electron microscopy
Abstract:
... The positively charged azolium moieties make imidazolium linker an ideal linker for the construction of cationic metal-organic frameworks because the ligand induces cationic environments in the frameworks. Therefore, we employed two imidazolium ligands, 1,3-bis(4-carboxyphenyl)imidazolium chloride (H2L+Cl¯) and 1,3-bis(3,5-dicarboxyphenyl)imidazolium chloride (H4L+Cl¯), to synthesize two nickel az ...
DOI:
10.1016/j.jcis.2018.02.003

27. Semi-interpenetrating network hyaluronic acid microgel delivery systems in micro-flow

Author:
Chen, Qiqing; Passos, Andreas; Balabani, Stavroula; Chivu, Alexandru; Zhao, Shudong; Azevedo, Helena S.; Butler, Peter; Song, Wenhui
Source:
Journal of colloid and interface science 2018 v.519 pp. 174-185
ISSN:
0021-9797
Subject:
biocompatibility; blood vessels; cost effectiveness; drugs; hyaluronic acid; hydrogels; microgels; microparticles; models; polymers; rhodamines; risk; viscosity
Abstract:
... Macroscopic hydrogels are commonly used as injectable scaffolds or fillers, however they may easily obstruct blood vessels, which poses risks and limits their clinical use. In the present study, three types of hyaluronic acid (HA)-based hydrogel micro-particles with non-covalent, covalent semi-interpenetrating and conventional 3D molecular networks, have been designed, fabricated and characterized ...
DOI:
10.1016/j.jcis.2018.02.049

28. Simultaneously efficient adsorption and photocatalytic degradation of tetracycline by Fe-based MOFs

Author:
Wang, Dongbo; Jia, Feiyue; Wang, Hou; Chen, Fei; Fang, Ying; Dong, Wenbo; Zeng, Guangming; Li, Xiaoming; Yang, Qi; Yuan, Xingzhong
Source:
Journal of colloid and interface science 2018 v.519 pp. 273-284
ISSN:
0021-9797
Subject:
adsorption; catalysts; coordination polymers; iron; photocatalysis; superoxide anion; tetracycline; trapping
Abstract:
... Recently, Fe-based metal–organic frameworks (MOFs) have attracted increasing attention and been widely used. To date, however, it is unknown whether they can be employed to degrade tetracycline, one of the most widely used antibiotics. This work therefore aims to provide such support by comparing the performance of three Fe-based MOFs (namely, Fe-MIL-101, Fe-MIL-100, and Fe-MIL-53) in removing tet ...
DOI:
10.1016/j.jcis.2018.02.067

29. Synthesis of organic-inorganic hybrid compounds and their self-assembled behavior in different solvents

Author:
Zhuang, Xuewen; Wang, Wenguang; Hao, Jingcheng
Source:
Journal of colloid and interface science 2018 v.519 pp. 81-87
ISSN:
0021-9797
Subject:
cations; moieties; nanomaterials; protons; scanning electron microscopy; solvents; tetrabutylammonium compounds; transmission electron microscopy
Abstract:
... Self-assembly behavior of polyoxometalates (POMs) is influenced by the functional group linked with polyoxometalates structure. We modified the POMs with organic molecule terpyridine to endow POMs the ability to assemble into nanostructure and control the properties of POMs. An amphiphilic organic-inorganic hybrid compound was prepared through combining the 4′-para-phenylcarboxyl-2,2′:6′,2′′-terpy ...
DOI:
10.1016/j.jcis.2018.02.044

30. The effect of chitin nanoparticles on surface behavior of DPPC/DPPG Langmuir monolayers

Author:
Wang, Ruijin; Guo, Yi; Liu, Hengjiang; Chen, Yuning; Shang, Yazhuo; Liu, Honglai
Source:
Journal of colloid and interface science 2018 v.519 pp. 186-193
ISSN:
0021-9797
Subject:
chitin; electrostatic interactions; hydrogen bonding; lungs; microscopy; nanoparticles; particulates; phosphates; phospholipids; spectroscopy; surfactants
Abstract:
... The effect of chitin nanoparticles on surface behavior of lipid systems containing dipalmitoylphosphatidylcholine (DPPC) and dipalmitoylphosphatidylglycerol (DPPG) is studied by surface pressure (π)-area (A) isotherms, polarization-modulation infrared reflection absorption spectroscopy (PM-IRRAS), Brewster angle microscopy (BAM). The variation of surface behavior of DPPC/DPPG monolayers is induced ...
DOI:
10.1016/j.jcis.2018.02.021