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显示 31-60 共 136 条结果 关于 "71238" 范围 论文
Abd El-Shafey I Ahmed et al.
Carbohydrate polymers, 92(2), 1934-1941 (2013-02-13)
New N-halamines (I-Cl and II-Cl) based on cellulose extracted from rice straw have been evaluated in single and multistage filtration systems against bacteria and viruses. Escherichia coli and Staphylococcus aureus were used as examples of Gram-negative and Gram-positive bacteria respectively
C. Bucke
Methods in Enzymology, 135, 175-175 (1987)
Liming Bian et al.
Proceedings of the National Academy of Sciences of the United States of America, 110(25), 10117-10122 (2013-06-05)
Methacrylated hyaluronic acid (HA) hydrogels provide a backbone polymer with which mesenchymal stem cells (MSCs) can interact through several cell surface receptors that are expressed by MSCs, including CD44 and CD168. Previous studies showed that this 3D hydrogel environment supports
Anja Veronovski et al.
International journal of pharmaceutics, 454(1), 58-66 (2013-07-16)
The presented research was oriented towards the preparation of dry biodegradable alginate aerogels with multi-membranes using a multi-step sol-gel process with potential applications as carriers during oral drug delivery. First alginate spherical hydrogels were formed in CaCl2 or BaCl2 solutions
S Sai Subhashini et al.
Journal of environmental biology, 34(5), 831-835 (2014-02-25)
The uptake and recovery of Pb (II) ions were investigated by using sodium alginate beads. Biosorption experiments are carried out in batch mode. The experimental results showed that the beads were effective in removing Pb (II) ions from solution. Biosorption
Geoffrey I N Waterhouse et al.
Food chemistry, 142, 27-38 (2013-09-05)
This study examines the co-extrusion encapsulation of canola oil by alginate, with an antioxidant (quercetin) incorporated either in the oil core or alginate shell. Optical and environmental scanning electron microscopy revealed spherical beads of diameter ∼350μm and wall thickness ∼65μm.
Meiling Zhong et al.
Materials science & engineering. C, Materials for biological applications, 101, 370-379 (2019-04-29)
Vascularization is of great importance in the successful translation of tissue engineered constructs into clinically relevant application. The lack of a general approach to rapidly construct vascular networks in engineered constructs remains a major challenge. Herein, an adhesive hydrogel-based tissue
M A Abd El-Ghaffar et al.
Carbohydrate polymers, 92(2), 2095-2102 (2013-02-13)
Chitosan grafted with polymethyl methacrylate (PMMA-g-CS) was prepared via a free-radicals polymerization technique as a carrier for enzyme immobilization. α-Chymotrypsin (CT), as an enzyme model in this study, was immobilized onto the prepared PMMA-g-CS via covalent bonding. Calcium alginate (CA)
Sara Gil et al.
ACS biomaterials science & engineering, 1(10), 1016-1025 (2015-10-12)
Self-standing nanocomposite films based on biopolymers and functional nanostructures have been widely used due to their potential applications as active elements in biomedical devices. The coupling between chitosan (CHI) and alginate (ALG) multilayered films and magnetic nanoparticles (MNPs) allowed to
Oleksandr Gryshkov et al.
International journal of molecular sciences, 22(6) (2021-04-04)
Alginate as a versatile naturally occurring biomaterial has found widespread use in the biomedical field due to its unique features such as biocompatibility and biodegradability. The ability of its semipermeable hydrogels to provide a favourable microenvironment for clinically relevant cells
Merve Yıldız Yiğit et al.
Water science and technology : a journal of the International Association on Water Pollution Research, 83(5), 1152-1166 (2021-03-17)
Heavy metals become inevitable pollutants that are toxic to life. Lots of treatment methods are available; adsorption is a cheap option. Metals are mostly found as mixtures in wastewaters. Taking this into account, a natural composite adsorbent aims to remove
Li Li et al.
Pakistan journal of pharmaceutical sciences, 26(5), 929-937 (2013-09-17)
The present study was performed to optimize the formulation of metoprolol succinate (MS) sustained release tablets using hydroxypropyl methylcellulose (HPMC) and sodium alginate (SA) as the matrix combination. After investigating the effects of various parameters on drug release, a 2-factor
Michael B Ellman et al.
Gene, 524(2), 282-291 (2013-05-07)
Bone-morphogenetic protein-7 (BMP7) is a well-known anabolic and anti-catabolic growth factor on intervertebral disc (IVD) matrix and cell homeostasis. Similarly, Lactoferricin B (LfcinB) has recently been shown to have pro-anabolic, anti-catabolic, anti-oxidative and/or anti-inflammatory effects in bovine disc cells in
Alginate: an alternative to agar in plant protoplast culture.
Adaoha Mbanaso, E.N. and Roscoe, D.H.
Plant Sci. Lett., 25, 61-66 (1982)
Shintaroh Iwanaga et al.
Colloids and surfaces. B, Biointerfaces, 109, 301-306 (2013-05-15)
This article describes a rapid and facile method for manufacturing various size-controlled gel particles with utilizing inkjet printing technology. Generally, the size of droplets could be controlled by changing nozzle heads of inkjet printer, from which ink solution is ejected.
Bojan Calija et al.
Colloids and surfaces. B, Biointerfaces, 110, 395-402 (2013-06-12)
The primary objective of this study was to investigate the influence of the oligochitosan-Eudragit(®) L100-55 polyelectrolyte complex (OCH-EL PEC) on the pH-sensitivity of Eudragit(®) L100-55-treated alginate-oligochitosan microparticles. In order to achieve this, three types of naproxen-loaded microparticles were prepared under
W.H. Scouten
Solid Phase Biochemistry, 449-449 (1983)
Javad Hatami et al.
Polymers, 9(9) (2017-09-13)
The construction of multilayered films with tunable properties could offer new routes to produce biomaterials as a platform for 3D cell cultivation. In this study, multilayered films produced with five bilayers of chitosan and alginate (CHT/ALG) were built using water-soluble
Takayuki Takei et al.
Journal of bioscience and bioengineering, 117(4), 497-500 (2013-11-05)
Agarose gels were superior to calcium-alginate gels for immobilizing Rhodococcus erythropolis CS98 strain to remove cesium from water. Suitable incubation time of the immobilized cells in cesium solutions, cell number in the gels and volume ratio of the cesium solution
Emmanuelle Déat-Lainé et al.
International journal of pharmaceutics, 453(2), 336-342 (2013-06-26)
The evaluation of encapsulated insulin intestinal absorption enhancement was investigated by in vitro methods. Insulin-loaded microparticles (INS-MP) made of whey protein (WP) and alginate (ALG) were prepared by a cold gelation technique. Effect of INS encapsulation toward trypsin and chymotrypsin
Jian Hua Chen et al.
Journal of hazardous materials, 248-249, 285-294 (2013-02-13)
In this study, we prepared 3-aminopropyl-triethoxysilane (APTEOS) functionalized sodium alginate (SA) porous membrane adsorbent (APTEOS/SA) and tested its adsorption performance for removing of Cr(III) ions. The physico-chemical properties of the pristine and Cr(III) ions loaded APTEOS/SA were investigated by FT-IR
Chun-Xia Zhu et al.
Zhongguo Zhong yao za zhi = Zhongguo zhongyao zazhi = China journal of Chinese materia medica, 38(20), 3479-3483 (2014-02-05)
To determine the optimum process for preparing Cinnamomi Cortex oil microspheres based on porous silicon dioxide. After porous silica dioxide adsorbed Cinnamomi Cortex oil, Cinnamomi Cortex oil microspheres were prepared by the dropping method, with sodium alginate as the skeleton
Emmanuel C Opara et al.
Methods in molecular biology (Clifton, N.J.), 1001, 261-266 (2013-03-16)
Islet transplantation is the most exciting treatment option for individuals afflicted with Type 1 diabetes. However, the severe shortage of human pancreas and the need to use risky immunosuppressive drugs to prevent transplant rejection remain two major obstacles for the
Saisubramanian Nagarajan et al.
Proceedings of the National Academy of Sciences of the United States of America, 111(15), E1538-E1547 (2014-04-08)
Studies of replicative and chronological lifespan in Saccharomyces cerevisiae have advanced understanding of longevity in all eukaryotes. Chronological lifespan in this species is defined as the age-dependent viability of nondividing cells. To date this parameter has only been estimated under
Qiang Chen et al.
Colloids and surfaces. B, Biointerfaces, 130, 199-206 (2015-04-30)
Electrophoretic deposition (EPD) technique has been developed for the fabrication of antibiotic-loaded PHBV microsphere (MS)-alginate antibacterial coatings. The composite coatings deposited from suspensions with different MS concentrations were produced in order to demonstrate the versatility of the proposed method for
Yan Wang et al.
Water science and technology : a journal of the International Association on Water Pollution Research, 67(10), 2202-2209 (2013-05-17)
Composite flocculants have been extensively studied and applied in recent years in order to improve the water treatment efficiency. In this study, a new composite flocculant prepared by polyaluminum chloride (PAC) and sodium alginate (SA) was used to treat dye
J L Lázaro-Martínez et al.
Revista de enfermeria (Barcelona, Spain), 36(11), 29-34 (2014-01-11)
High levels of bacterial load have shown a deleterious influence on wound healing. Using antimicrobial dressings can control ulcers' bioburden. The aim of our study was to evaluate the improving of infected diabetic foot ulcers due an alginate's fiber and
Hnin-Ei Thu et al.
International journal of pharmaceutics, 454(1), 99-106 (2013-07-17)
In our previous study, a novel alginate-based bilayer film for slow-release wound dressings was successfully developed. We found that alginate alone yielded poor films; however, the addition of gelatine had significantly enhanced the drug dispersion as well as the physical
Christina Monsen et al.
Journal of vascular surgery, 59(1), 145-151 (2013-09-24)
Vacuum-assisted wound closure (VAC) therapy may heal wounds faster than conventional dressings after surgical debridement of perivascular groin infections after vascular surgery. Patients with deep infected wounds (Szilagyi grade III) were surgically revised and left open for secondary healing, then
Mikhail Y Maslov et al.
Journal of controlled release : official journal of the Controlled Release Society, 171(2), 201-207 (2013-07-23)
Local drug delivery preferentially loads target tissues with a concentration gradient from the surface or point of release that tapers down to more distant sites. Drug that diffuses down this gradient must be in unbound form, but such drug can
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