CN
Search Within
09368
应用筛选条件
关键词:'09368'
显示 1-30 共 33 条结果 关于 "09368" 范围 论文
Liangzhu Li et al.
PloS one, 7(5), e37381-e37381 (2012-05-23)
Sifuvirtide is a proven effective HIV-1 entry inhibitor and its safety profile has been established for systemic administration. The present study evaluated the potential of sifuvirtide formulated in a universal gel for topical use as a microbicide candidate for preventing
Bernice Wright et al.
Regenerative medicine, 7(3), 295-307 (2012-05-19)
Therapeutic limbal epithelial stem cells could be managed more efficiently if clinically validated batches were transported for 'on-demand' use. In this study, corneal epithelial cell viability in calcium alginate hydrogels was examined under cell culture, ambient and chilled conditions for
Fuhu Cao et al.
Electrophoresis, 32(10), 1148-1155 (2011-04-19)
In this work, a novel graft copolymer, hydroxyethylcellulose-graft-poly(2-(dimethylamino)ethyl methacrylate) (HEC-g-PDMAEMA), used as physical coatings of the bare fused-silica capillaries, was synthesized by using ceric ammonium nitrate initiator in aqueous nitric acid solution. EOF measurement results showed that the synthesized HEC-g-PDMAEMA
Dan Zhou et al.
Journal of separation science, 34(23), 3441-3450 (2011-11-01)
To stabilize electroosmotic flow (EOF) and suppress protein adsorption onto the silica capillary inner wall, a cationic hydroxyethylcellulose-graft-poly (poly(ethylene glycol) methyl ether methacrylate) (cat-HEC-g-PPEGMA) graft copolymer composed of cationic backbone and bottle brush-like side chains was synthesized for the first
A Semalty et al.
Indian journal of pharmaceutical sciences, 72(5), 571-575 (2011-06-23)
Enalapril maleate is used in the treatment of hypertension and angina pectoris. It shows low bioavailability due to high hepatic first pass metabolism. Hence the present work was undertaken to formulate mucoadhesive buccal films of enalapril maleate with an objective
Zhenqing Li et al.
Journal of chromatography. A, 1229, 274-279 (2012-02-09)
Pulsed field capillary electrophoresis (PFCE) is a predominant technique to cope with difficulties in resolving large DNA strands, yet it is still unclear whether pulsed electric field is effective for the separation of higher mass RNA. In this paper we
Ying-Chen Chen et al.
International journal of pharmaceutics, 441(1-2), 162-169 (2012-12-15)
The aim was to develop gastroretentive drug delivery systems (GRDDSs) by combining floating and swelling. GRDDS tablets formulated with hydroxyethylcellulose (HEC), chitosan (CS) and sodium bicarbonate (SB) for evaluating floating capacity (floating lag time and duration) and swelling characteristics. CS
Yaman Boluk et al.
Langmuir : the ACS journal of surfaces and colloids, 28(14), 6114-6123 (2012-03-28)
The steady-state shear and linear viscoelastic deformations of semidilute suspensions of rod-shaped nanocrystalline cellulose (NCC) particles in 1.0% hydroxyethyl cellulose and carboxymethyl cellulose solutions were investigated. Addition of NCC at the onset of semidilute suspension concentration significantly altered the rheological
Najmul Arfin et al.
International journal of biological macromolecules, 50(3), 759-767 (2011-12-14)
Solution behaviour of hydroxyethyl cellulose (HEC) is reported in the polymer concentration range spanning over two decades (c=0.002-5% (w/v)). The results conclude the following: (i) dilute solution regime prevailed for c<0.2% (w/v), flexible HEC fibres of typical length ≈ 1
Koichi Ono et al.
Electrophoresis, 34(6), 903-910 (2013-01-12)
We developed a novel single-step capillary electrophoresis (SSCE) scheme for miniaturized and easy to use system by using a microchannel chip, which was made from the hydrophilic material polymethyl methacrylate (PMMA), equipped with a capillary stop valve. Taking the surface
Deni Rahmat et al.
Drug development and industrial pharmacy, 39(9), 1338-1345 (2012-08-21)
Within this study, the influence of particle size and zeta potential of hydroxyethyl cellulose-cysteamine particles on permeation enhancing properties was investigated. Particles were prepared by four different methods namely ionic gelation, spray drying, air jet milling and grinding. Particles prepared
Gabriela R M Duarte et al.
The Analyst, 137(11), 2692-2698 (2012-05-01)
Microchip electrophoresis has become a powerful tool for DNA separation, offering all of the advantages typically associated with miniaturized techniques: high speed, high resolution, ease of automation, and great versatility for both routine and research applications. Various substrate materials have
Maoqiang Xue et al.
Journal of chromatography. B, Analytical technologies in the biomedical and life sciences, 912, 1-7 (2013-01-08)
Microporous anodic aluminum oxide (AAO) membranes were modified by 3-glycidoxypropyltrimethoxysilane to produce terminal epoxy groups. These were used to covalently link hydroxyethyl celluloses (HEC) to amplify reactive groups of AAO membrane. The hydroxyl groups of HEC-AAO composite membrane were further
Prem N Gupta et al.
European journal of pharmaceutical sciences : official journal of the European Federation for Pharmaceutical Sciences, 46(5), 315-322 (2012-03-01)
Mucosally-administered vaccine strategies are widely investigated as a promising means of preventing HIV infection. This study describes the development of liposomal gel formulations, and novel lyophilised variants, comprising HIV-1 envelope glycoprotein, CN54gp140, encapsulated within neutral, positively charged or negatively charged
F Lippert et al.
Caries research, 46(1), 23-30 (2012-01-10)
The present study investigated the effects of fluoride (F) concentration, lesion baseline severity (ΔZ(base)) and mineral distribution on lesion progression. Artificial caries lesions were created using three protocols [methylcellulose acid gel (MeC), hydroxyethylcellulose acid gel (HEC), carboxymethylcellulose acid solution (CMC)]
Temperature-responsive self-assembly of charged and unchargedhydroxyethylcellulose-graft-poly(N-isopropylacrylamide) copolymer in aqueous solution.
Phan HT, Zhu K, Kj?niksen AL, Nystrom B.
Coll. Polymer Sci., 289, 993-1003 (2011)
Salomé dos Santos et al.
Journal of colloid and interface science, 383(1), 63-74 (2012-07-17)
Associative aqueous mixtures over a range of concentrations of double- (ds) or single- (ss) stranded DNA with dilute or semidilute solutions of two cationic derivatives of hydroxyethyl cellulose (cat-HEC and cat-HMHEC,(1) the latter carrying grafted hydrophobic groups), were studied. The
E S Abdel-Halim
Carbohydrate polymers, 90(2), 930-936 (2012-07-31)
Poly(acrylic acid) hydroxyethyl cellulose [poly(AA)-HEC] graft copolymer was prepared by polymerizing acrylic acid (AA) with hydroxyethyl cellulose (HEC) using potassium bromate/thiourea dioxide (KBrO(3)/TUD) as redox initiation system. The polymerization reaction was carried out under a variety of conditions including concentrations
Lauren L Katzen et al.
Sexually transmitted diseases, 38(11), 1050-1055 (2011-10-14)
The reliability and validity of self-reports of vaginal microbicide use are questionable given the explicit understanding that participants are expected to comply with study protocols. Our objective was to optimize the use of Population Council's previously validated dye stain assay
Barbra A Richardson et al.
Journal of acquired immune deficiency syndromes (1999), 63(1), 120-125 (2013-01-22)
To compare the 2 control arms of HPTN 035 [a hydroxyethylcellulose (HEC) gel control arm and a no-gel control arm] to assess the behavioral effects associated with gel use and direct causal effects of the HEC gel on sexually transmitted
E A Naumova et al.
Journal of dentistry, 40(9), 750-755 (2012-06-09)
The aim of this study was to investigate the effects of decreasing fluoride concentrations on repeated demineralizing challenges on human enamel. In 24 teeth, 3mm×3mm windows were prepared on the buccal and lingual sides and treated in a cycling demineralization-remineralization
Ahmed M Eissa et al.
Carbohydrate polymers, 90(2), 859-869 (2012-07-31)
This article describes a versatile method for the modification of 2-hydroxyethyl cellulose (HEC) involving azide-alkyne cycloaddition reaction to impart neutral (ester) and ionic (carboxylic acid and 1(ry) amine) functionalities. The synthetic approach involved, first the introduction of the azide functionality
Mingyun Sun et al.
Electrophoresis, 32(22), 3233-3240 (2011-10-20)
Double-stranded (ds) DNA fragments over a wide size range were successfully separated in blended polymer matrices by microfluidic chip electrophoresis. Novel blended polymer matrices composed of two types of polymers with three different molar masses were developed to provide improved
H Braunwarth et al.
Der Urologe. Ausg. A, 51(3), 403-408 (2012-02-22)
There are special requirements for draining a pouch, e.g. length, flexibility and ability to drain highly viscous urine. We checked in vitro the flow time of pure and synthetic urine thickened with hydroxyethylcellulose (0.125% and 0.250%, HEC) on selected catheters.
Shao-Ching Hung et al.
Journal of agricultural and food chemistry, 60(44), 11149-11156 (2012-10-23)
Cationic hydroxyethyl cellulose (cHEC) was supplemented in a high-fat diet to determine if this new soluble fiber had an effect on hypercholesterolemia and dyslipidemia associated with cardiovascular disease using Golden Syrian hamster as an animal model. Supplementation of 3-5% cHEC
Eduard Tichý et al.
Drug development and industrial pharmacy, 39(9), 1273-1276 (2012-09-01)
The aim of this study was to evaluate and compare the permeation of model drug indomethacin (IND) from various types of gels through several semipermeable membranes. Permeation of IND from gels based on carbomer (CA), hydroxyethylcellulose (HEC), and polyacrylamid/laureth-7/isoparaffin was
Deni Rahmat et al.
International journal of pharmaceutics, 422(1-2), 40-46 (2011-10-27)
Within the present study hydroxyethyl cellulose-cysteamine conjugates are investigated regarding biocompatibility, in situ gelling, permeation enhancing and efflux pump inhibitory properties. For this purpose, a series of concentrations of sodium periodate was prepared to oxidize HEC leading to ring opening
Deepmoni Deka et al.
Preparative biochemistry & biotechnology, 43(3), 256-270 (2013-02-06)
An extracellular alkaline carboxymethycellulase (CMCase) from Bacillus subtilis was purified by salt precipitation followed by anion-exchange chromatography using DEAE-Sepharose. The cell-free supernatant containing crude enzyme had a CMCase activity of 0.34 U/mg. The purified enzyme gave a specific activity of
Carole Lepilleur et al.
Journal of cosmetic science, 64(6), 411-427 (2014-01-09)
Formulation composition has a dramatic influence on the performance of conditioning shampoos. The purpose of this study is to determine the factors affecting the performance of various cationic polymers in those systems. An experiment was conducted by varying the levels
Runmiao Yang et al.
Electrophoresis, 29(7), 1460-1466 (2008-04-04)
We present cationized hydroxyethylcellulose (cat-HEC) synthesized in our laboratory as a novel physically adsorbed coating for CE. This capillary coating is simple and easy to obtain as it only requires flushing the capillary with polymer aqueous solution. A comparative study
1/2