journal
MENU ▼
Read by QxMD icon Read
search

Journal of Colloid and Interface Science

journal
https://www.readbyqxmd.com/read/28531651/synthesis-and-characterization-of-au-nps-supported-on-carbon-nanotubes-application-for-the-ultrasound-assisted-removal-of-radioactive-uo2-2-ions-following-complexation-with-arsenazo-iii-spectrophotometric-detection-optimization-isotherm-and-kinetic-study
#1
Mohammad Hassan Omidi, Farshid Nasiri Azad, Mehrorang Ghaedi, Arash Asfaram, Mohammad Hossein Ahmadi Azqhandi, Lobat Tayebi
The present study devoted to description of efficient removal of radioactive UO2(2+) ions (U(IV)) via complexation with Arsenazo III (ARS III) accelerated by ultrasound-assisted adsorption onto the Au-NPs supported on carbon nanotubes (Au-NPs-CNTs), which were characterized by conventional techniques such as FESEM, EDS and XRD. Central composite design (CCD) employed to model contribution of parameters viz. pH (2.5-8.5), adsorbent mass (5-25mg), UO2(2+) concentration (5-25mgL(-1)) and sonication time (1-5min) onto response...
May 13, 2017: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/28531650/positioned-substituent-effect-on-self-assembly-behaviors-of-perylene-diimide-derivatives-on-graphite
#2
Qian Wei, Wei Wang, Erjun Zhou, Xiao-Ping Liu, Ming-Hui Liang, Ke Deng, Jing-Kui Yang, Peng Jiang
Three kinds of π-conjugated perylenetetracarboxylic diimide (PTCDI)-based organic functional derivatives, i.e., N,N'-di(2-ethylhexyl)-3,4,9,10-perylene diimide (molecule 1), N,N'-di(2-ethylhexyl)-1,7-dithien-2-yl-3,4,9,10-perylene diimide (molecule 2), N,N'-di(2-ethylhexyl)-1,7-di(2-bromothien-5-yl)-perylene-3,4,9,10-perylene diimide (molecule 3), have been prepared and investigated by using a scanning tunneling microscopy under ambient conditions. All of them can form long-ranged ordered self-assembled monolayer (SAM) with two different phase structures on highly oriented pyrolitic graphite (HOPG) surface...
May 12, 2017: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/28531648/cationic-surfactant-blocks-radical-inhibiting-sites-on-silica
#3
Tan Zhang, Frank D Blum
Surfactant-catalyzed room-temperature radical polymerization of methyl methacrylate (MMA) was conducted in the presence of fumed silica nanoparticles and water. Three types of surfactants, cationic (CTAB), nonionic (Triton X-100) or anionic (SDS), were used to catalyze the decomposition of the initiator, 2,2'-azobisisobutyronitrile (AIBN). The surfactant-catalyzed decomposition rate constant for AIBN at room temperature was found to be independent of the surfactant type. However, the rates of polymerization of the MMA emulsion gels at room temperature were found to depend on the types of surfactant with: cationic>nonionic>anionic...
May 12, 2017: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/28531647/multifunctional-plla-ceramic-fiber-membranes-for-bone-regeneration-applications
#4
Daniel Santos, Dina M Silva, Pedro S Gomes, Maria H Fernandes, José D Santos, Vitor Sencadas
A novel method to process electrospun poly(l-lactic acid) (PLLA) membranes incorporating glass reinforced hydroxyapatite granules (gHA) interspacially between the polymeric fibers is reported, thus increasing the surface area for cellular interactions. gHA granules (≤150μm) electrospun together with the polymer solution, lead to an average fiber diameter of 550±150nm for pristine PLLA and 440±170nm for the composite samples. An increase of the overall porosity was observed, from 79±3% for the PLLA up to 88±5% for the hybrid samples, keeping material's wettability and mechanical properties...
May 12, 2017: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/28527829/graphene-oxide-nanosheets-and-d-%C3%AE-tocopheryl-polyethylene-glycol-1000-succinate-tpgs-doping-improves-biocompatibility-and-ultrafiltration-in-polyethersulfone-hollow-fiber-membranes
#5
Akshay Modi, Surendra Kumar Verma, Jayesh Bellare
Novel graphene oxide (G)-and d-α-Tocopheryl polyethylene glycol 1000 succinate (T)-doped polyethersulfone (P) hollow fiber membranes (GTP HFMs) were efficiently prepared. GTP HFMs were found to be a desirable biocompatible substrate for attachment and proliferation of human embryonic kidney-293 (HEK-293) cells. Significantly high porosity (94.58±1.1%), low contact angle (61.1±2.5°), low hemolysis (0.58% in batch mode and 0.64% in continuous mode), low terminal complement complex activation (SC5b-9 marker level ∼6...
May 12, 2017: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/28527828/buffer-formulation-affects-the-interaction-between-lysozyme-and-polymeric-nanoparticles
#6
Martin Lundqvist, Celia Cabaleiro-Lago
The effect of the buffer formulation in terms of buffer identity and ionic strength on the interaction between chicken egg lysozyme and carboxyl-modified polystyrene nanoparticles has been systematically studied. The time evolution of the fluorescence of a reporter molecule shows that lysozyme interacts with the nanoparticles in all the studied conditions. The interaction results in changes in protein conformation and decrease of the colloidal stability of nanoparticles. In absence of a background salt the rate of adsorption is affected mainly by the ionic strength of the buffer solution, although, specific buffer effects may contribute to a certain extent...
May 12, 2017: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/28527299/role-of-pickering-stabilization-and-bulk-gelation-for-the-preparation-and-properties-of-solid-silica-foams
#7
I Lesov, S Tcholakova, M Kovadjieva, T Saison, M Lamblet, N Denkov
Foaming of particulate suspensions, followed by foam drying, is developed as an efficient method for production of highly porous materials with various applications. A key factor for success is the appropriate choice of surfactants which both modify the particle surface and stabilize the foam. Here we compare the efficiency of this method for silica suspensions containing two surfactants which lead to very different types of foam stabilization. Cationic TTAB leads to particle-stabilized foams (Pickering stabilization) whereas zwitterionic CAPB - to surfactant-stabilized foams...
May 12, 2017: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/28527297/hyaluronic-acid-nanogels-prepared-via-ortho-ester-linkages-show-ph-triggered-behavior-enhanced-penetration-and-antitumor-efficacy-in-3-d-tumor-spheroids
#8
Guanqing Yang, Shengxiang Fu, Weijing Yao, Xin Wang, Qian Zha, Rupei Tang
A new type of pH-triggered hyaluronic acid nanogel system (HA-NGs) was successfully developed for tumor-targeted delivery of drugs. HA-NGs were obtained by copolymerization between methacrylate HA and a new cross-linker containing ortho ester groups in an aqueous solution. The therapeutic drug (DOX) was loaded into the HA-NGs (DOX@HA-NGs) and exhibited appropriate loading of about 17.3% with a size of around 200nm. Such new pH-triggered HA-NGs are found to be highly desirable for targeted cancer therapy because it could significantly minimize the amount of premature drug release in neutral pH, and also provide a sufficient amount of drug to effectively kill the cancer cells caused by the degradation of ortho ester groups at acid pH values...
May 12, 2017: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/28525832/fabrication-of-porous-nanosheets-assembled-from-nico2o4-nio-electrode-for-electrochemical-energy-storage-application
#9
Chao Wei, Ying Huang, Menghua Chen, Jing Yan, Wen Yao, Xuefang Chen
In this work, The NiCo2O4/NiO electrode materials are successfully synthesized via hydrothermal and following calcination approach. Due to the distinctive porous nanosheets assembled structure through controlling effectively the feeding amount of HMT, the NiCo2O4/NiO electrode possesses excellent specific surface area and reasonable pore size distribution, which hence minimizes the intrinsic electrode resistance and improves the morphology and structure stability. Therefore, the NiCo2O4/NiO electrode delivers a superior specific capacitance (Csp) (992...
May 12, 2017: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/28527339/selective-removal-of-toxic-cr-vi-from-aqueous-solution-by-adsorption-combined-with-reduction-at-a-magnetic-nanocomposite-surface
#10
Nazia H Kera, Madhumita Bhaumik, Kriveshini Pillay, Suprakas Sinha Ray, Arjun Maity
The adsorption of toxic hexavalent chromium (Cr(VI)) and its reduction to trivalent chromium (Cr(III)) are important processes for the treatment of industrial wastewater. Conducting polymers can adsorb and reduce Cr(VI) to less toxic Cr(III) but have low adsorption capacities due to agglomeration of particles and are difficult to separate from treated water. In this study, magnetic polypyrrole (PPy)-polyaniline (PANI)/iron oxide (Fe3O4) nanocomposite was synthesized for the selective removal of Cr(VI) in aqueous solution...
May 10, 2017: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/28527298/enhanced-adsorption-performance-of-mos2-nanosheet-coated-mil-101-hybrids-for-the-removal-of-aqueous-rhodamine-b
#11
Cao Yang, Jianhua Cheng, Yuancai Chen, Yongyou Hu
A MoS2 nanosheet-coated chromium terephthalate MIL-101 octahedron hybrid (denoted as MoS2/MIL-101) was prepared via a simple hydrothermal reaction. The obtained MoS2/MIL-101 hybrid exhibited a significantly enhanced adsorption ability toward rhodamine B (RhB) as compared with pure MoS2, MIL-101, and the physical mixture of the two. The results demonstrate that the MoS2/MIL-101 hybrid had a high uptake capacity (Qm ≈ 344.8mgg(-1)) and fast adsorption rate for the removal of aqueous RhB. The excellent adsorption performance is likely related to the synergism of hydrogen bonding, π-π stacking interactions, and direct coordination between the MIL-101 substrate and RhB, as well as electrostatic interactions between MoS2 nanosheets and RhB...
May 10, 2017: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/28527296/performances-and-working-mechanism-of-a-novel-polycarboxylate-superplasticizer-synthesized-through-changing-molecular-topological-structure
#12
Xiao Liu, Jianan Guan, Guanghong Lai, Ziming Wang, Jie Zhu, Suping Cui, Mingzhang Lan, Huiqun Li
A novel star-shaped polycarboxylate superplasticizer (SPCE) was synthesized through a simple two-step method. (1)H Nuclear Magnetic Resonance ((1)H NMR) and Infrared Spectroscopy (IR) measurements were used for structural characterization. SPCE and comb-shaped polycarboxylate superplasticizer (CPCE) with same molecular weights were designed and synthesized. The cement paste containing SPCE exhibited better fluidity, fluidity retention, water reduction, 25% lower saturated dosage of PCE, 10% longer setting time, lower hydration heat, more delayed hydration heat evolution and lower amount of hydration products at early ages...
May 10, 2017: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/28525826/formation-and-stability-of-manganese-doped-zns-quantum-dot-monolayers-determined-by-qcm-d-and-streaming-potential-measurements
#13
Magdalena Oćwieja, Katarzyna Matras-Postołek, Julia Maciejewska-Prończuk, Maria Morga, Zbigniew Adamczyk, Svitlana Sovinska, Adam Żaba, Marta Gajewska, Tomasz Król, Klaudia Cupiał, Michael Bredol
Manganese-doped ZnS quantum dots (QDs) stabilized by cysteamine hydrochloride were successfully synthesized. Their thorough physicochemical characteristics were acquired using UV-Vis absorption and photoluminescence spectroscopy, X-ray diffraction, dynamic light scattering (DLS), transmission electron microscopy (HR-TEM), energy dispersive spectroscopy (EDS) and Fourier transform infrared (FT-IR) spectroscopy. The average particle size, derived from HR-TEM, was 3.1nm, which agrees with the hydrodynamic diameter acquired by DLS, that was equal to 3-4nm, depending on ionic strength...
May 10, 2017: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/28521220/synthesis-of-ordered-mesoporous-la2o3-zro2-composites-with-encapsulated-pt-nps-and-the-effect-of-la-dopping-on-catalytic-activity
#14
Yan Gao, Yiwei Zhang, Yuming Zhou, Chao Zhang, Hongxing Zhang, Shuo Zhao, Jiasheng Fang, Mengqiu Huang, Xiaoli Sheng
In this work, we report a feasible approach to synthesize a ternary nanocomposites, Pt/lanthanum doped mesoporous zirconium oxide (Pt/La2O3-ZrO2), via an effective two-step method. Ordered mesoporous La2O3-ZrO2 composites were firstly fabricated with mesoporous silica KIT-6 as a hard template. Subsequently, uniform Pt nanoparticles encapsulated by 4 hydroxyl-terminated poly (amidoamine) (G4-OH PAMAM) dendrimers were deposited on the La2O3-ZrO2 composites. The as-prepared samples were characterized by transmission electron microscope (TEM), N2 adsorption-desorption isotherm analysis, energy dispersion X-ray analysis (EDX), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), and temperature programmed reduction (H2-TPR)...
May 10, 2017: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/28521217/structure-and-thickness-dependent-gas-sensing-responses-to-no2-under-uv-irradiation-for-the-multilayered-zno-micro-nanostructured-porous-thin-films
#15
Xingsong Su, Guotao Duan, Zongke Xu, Fei Zhou, Weiping Cai
The structure and thickness of the chemiresistive thin films can significantly affect their gas sensing performances for the heating-typed sensors. Under light irradiation, however, their influences are still to be addressed. In present paper, the multilayered ZnO porous thin films with different (three types) micro/nanostructures and controllable thickness are fabricated via layer by layer construction of the self-assembled colloidal-layers. The structural and thickness effects of such films on the gas sensing performances to NO2 under ultraviolet (UV) illumination are experimentally studied...
May 10, 2017: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/28521216/removing-the-effect-of-blooming-from-potential-energy-measurement-by-employing-total-internal-reflection-microscopy-integrated-with-video-microscopy
#16
Feng Cao, Xiangjun Gong, Chuanxin He, To Ngai
Total internal reflection microscopy (TIRM) measures the interactions between a colloidal particle and a flat surface in aqueous solution. Recently, TIRM has further integrated with video microscopy (VM) and enabled the simultaneous measurements of multi-particle colloid-surface interactions in the same ensemble. However, there still remain challenges about accurate image acquisition due to blooming. Blooming means the number of photons reaching the detector exceeds its maximum capacity, and the excess photons will either spill to adjacent pixels or not be counted, leading to an obstacle from precise determination of intensity...
May 10, 2017: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/28511100/dahlia-shaped-bioclxi1-x-structures-prepared-by-a-facile-solid-state-method-evidence-and-mechanism-of-improved-photocatalytic-degradation-of-rhodamine-b-dye
#17
Jing Xie, Yali Cao, Dianzeng Jia, Yizhao Li
A rapid and cheap solid-state chemical process was employed to synthesize BiOClxI1-x (x=1.0, 0.75, 0.5, 0.25, 0) solid solutions with dahlia-shaped hierarchitectures. The dahlia-shaped BiOClxI1-x hierarchitectures were effectively constructed by nanoplates with a thickness about 5-13nm. The band gap structure of the solid solutions can be modulated by adjusting the composition ratio of Cl and I, which has a significant effect on the photocatalytic activity of the solid solutions. The dahlia-shaped BiOClxI1-x (x=0...
May 10, 2017: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/28527338/facile-mass-production-of-nanoporous-sno2-nanosheets-as-anode-materials-for-high-performance-lithium-ion-batteries
#18
Wenli Wei, Pengcheng Du, Dong Liu, Hongxing Wang, Peng Liu
Facile one-step ultrasonic-assisted chemical precipitation strategy has been developed for the mass production of SnO2 nanomaterials with different morphologies. As anode material for lithium-ion batteries, the nanoporous SnO2 nanosheets exhibited an extremely high initial specific capacity of 2231mAh/g in comparison with 1242mAh/g of the SnO2 microcrystals and 1244mAh/g of the nanoporous SnO2 nanoflowers. Meanwhile the nanoporous SnO2 nanosheet electrode displayed a specific capacity of 688mAh/g after 60 cycles at 0...
May 9, 2017: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/28511101/stable-and-self-healing-superhydrophobic-mno2-fabrics-applications-in-self-cleaning-oil-water-separation-and-wear-resistance
#19
Deke Li, Zhiguang Guo
In this work, superhydrophobic fabrics were prepared through an in-situ growth method for fabricating hierarchical flower-like MnO2 nanoparticles on cotton fabric surface and subsequent STA modification, which exhibited multifunction for self-healing, self-cleaning, oil/water separation and wear resistance. After air-plasma treatment, the self-healing MnO2@fabric could restore superhydrophobicity by a short time heat treatment, and the water CA without obvious reduction after 8 cycles. Moreover, the MnO2@fabric could selectively filtrate oil from a mixture of oil and water repeatedly, and demonstrated high efficiency for oil/water separation capability and excellent self-cleaning property...
May 9, 2017: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/28511102/highly-effective-antibacterial-activity-by-the-synergistic-effect-of-three-dimensional-ordered-mesoporous-carbon-lysozyme-composite
#20
Jingjing Wang, Lin Tang, Ponisseril Somasundaran, Wei Fan, Guangming Zeng, Yaocheng Deng, Yaoyu Zhou, Jiajia Wang, Yang Shen
Aiming at developing a safe and efficient alternative to traditional drinking water disinfection, this work successfully synthesized a novel antibacterial material with high surface area, ultra large pore size and tunable loading of immobilized lysozyme. The immobilized enzymes exhibit high antibacterial efficacy without forming carcinogenic disinfection byproducts. Critical immobilization parameters were optimized to keep the activity of the immobilized enzyme at a high level. The immobilization of lysozymes on 3DOm COOH could be confirmed by the characterizations of transmission electron microscopy, X-ray diffraction and Zeta-Potential...
May 8, 2017: Journal of Colloid and Interface Science
journal
journal
21294
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"