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Showing 1-30 of 207 results for "448869" within Papers
Matea Korica et al.
Materials (Basel, Switzerland), 14(13) (2021-07-20)
This research proposed two pretreatments of viscose fabrics: oxidation with 2,2,6,6-tetramethylpiperidine-1-oxy radical (TEMPO) and coating with TEMPO-oxidized cellulose nanofibrils (TOCN), to introduce functional groups (COOH and CHO) suitable for irreversible binding of chitosan nanoparticles without and with embedded zinc (NCS
Lana Glerieide Silva Garcia et al.
International journal of biological macromolecules, 143, 341-348 (2019-12-10)
Sporotrichosis, caused by Sporothrix schenckii complex species, is the most prevalent subcutaneous mycosis in many areas of Latin America. Chitosan has been used as an antifungal agent; however the effects of the molecular weight (MW) of chitosan (i.e. high (HMW)
Massimo Malerba et al.
International journal of molecular sciences, 16(2), 3019-3034 (2015-02-03)
Chitosan (CHT) is a non-toxic and inexpensive compound obtained by deacetylation of chitin, the main component of the exoskeleton of arthropods as well as of the cell walls of many fungi. In agriculture CHT is used to control numerous diseases
The Han Nguyen et al.
Journal of nanoscience and nanotechnology, 13(8), 5296-5304 (2013-07-26)
The physicochemical and biofunctional properties of crab chitosan nanoparticles of two different sizes (Nano A and B) manufactured by dry milling method were evaluated for commercialization. The deacetylation degrees (DD) of Nano A, B and the control chitosan were 90.9
Bo Xiao et al.
Gastroenterology, 146(5), 1289-1300 (2014-02-08)
Nanoparticles have been explored as carriers of small interfering RNAs (siRNAs) and might be developed to treat patients with inflammatory bowel disease (IBD). Overexpression of CD98 on the surface of colonic epithelial cells and macrophages promotes the development and progression
Mar Collado-González et al.
Marine drugs, 18(1) (2020-01-19)
Polyelectrolyte nanocomposites rarely reach a stable state and aggregation often occurs. Here, we report the synthesis of nanocomposites for the oral delivery of insulin composed of alginate, dextran sulfate, poly-(ethylene glycol) 4000, poloxamer 188, chitosan, and bovine serum albumin. The
Sara Gnavi et al.
International review of neurobiology, 109, 1-62 (2013-10-08)
Various biomaterials have been proposed to build up scaffolds for promoting neural repair. Among them, chitosan, a derivative of chitin, has been raising more and more interest among basic and clinical scientists. A number of studies with neuronal and glial
Pallab Datta et al.
Journal of biomedical nanotechnology, 9(5), 870-879 (2013-06-28)
Most polymeric nanofibers used for bone tissue engineering lack adequate functional groups for bioactivity. This study explores the potential of nanofibers of phosphate functionalized derivative of chitosan-N-methylene phosphonic chitosan (NMPC) for bone tissue engineering. Nanofibers were fabricated by electrospinning of
B Palla-Rubio et al.
Carbohydrate polymers, 203, 331-341 (2018-10-16)
To avoid dental implant-related infections and to promote the osseointegration of titanium implants, the application of silicon and chitosan containing coatings is proposed. Silicon is a well-known osteogenic element and chitosan was selected to confer the antibacterial properties. The synthesis
Lee A Hadwiger
Plant science : an international journal of experimental plant biology, 208, 42-49 (2013-05-21)
Chitosan, a naturally occurring polymer, became available in the 1980s in industrial quantities enabling it to be tested as an agricultural chemical. A usual procedure for developing agricultural chemicals starts by testing a number of different chemically synthesized molecules on
Soo Jin Jeon et al.
PloS one, 9(3), e92723-e92723 (2014-03-25)
The emergence of antibiotic resistant microorganisms is a great public health concern and has triggered an urgent need to develop alternative antibiotics. Chitosan microparticles (CM), derived from chitosan, have been shown to reduce E. coli O157:H7 shedding in a cattle
Hongyu Yang et al.
Water science and technology : a journal of the International Association on Water Pollution Research, 68(1), 209-216 (2013-07-05)
Ethylenediaminetetraacetic dianhydride (EDTAD)-modified magnetic-Fe3O4 chitosan (EMC), prepared using the cross-link agent glutaraldehyde and chemicals Fe3O4, chitosan, and EDTAD, was used to compare the adsorption of methylene blue (MB) with magnetic chitosan (MC). The composite structure was confirmed by multiple characterization
R Shelma et al.
Journal of biomedical nanotechnology, 9(2), 167-176 (2013-05-01)
The overall goal of this paper was to enhance the bioavailability of orally delivered insulin. A mucoadhesive amphiphilic chitosan derivative, lauroyl sulphated chitosan (LSCS) was used as the oral carrier for insulin. Trans epithelial electrical resistance experiment was performed on
Yvonne J Rosenberg et al.
Scientific reports, 5, 13247-13247 (2015-08-14)
Although recent innovations in transient plant systems have enabled gram quantities of proteins in 1-2 weeks, very few have been translated into applications due to technical challenges and high downstream processing costs. Here we report high-level production, using a Nicotiana
Shuping Wu et al.
Food chemistry, 148, 196-203 (2013-11-23)
The structure, UV absorbance, browning intensity, fluorescence changes, antioxidant activity and antimicrobial assessment of Maillard reaction products (MRPs) derived from xylan with chitosan, chitooligomer, glucosamine hydrochloride and taurine model systems were evaluated. The results revealed that all MRPs had similar
Shouan Zhu et al.
Annals of the rheumatic diseases, 74(1), 285-293 (2013-11-22)
Osteoarthritis (OA) is a degenerative joint disease characterised by cartilage degradation and chondrocyte hypertrophy. A recent study showed that Rac1 promoted expression of MMP13 and chondrocyte hypertrophy within the growth plate. These findings warrant further investigations on the roles of
Pilar de la Puente et al.
Journal of pharmaceutical sciences, 107(3), 922-933 (2017-11-23)
Overall survival of patients with newly diagnosed glioblastoma (GBM) remains dismal at 16 months with state-of-the-art treatment that includes surgical resection, radiation, and chemotherapy. GBM tumors are highly heterogeneous, and mechanisms for overcoming tumor resistance have not yet fully been
A L Kavitha et al.
Journal of nanoscience and nanotechnology, 13(1), 98-104 (2013-05-08)
This work was aimed to develop reusable magnetite chitosan composite containing carbon paste electrode for biosensor application. Glucose oxidase (GOx) enzyme was used to prepare GOx-magnetite-chitosan nanocomposite containing carbon paste electrode for sensitive detection of glucose. The immobilized enzyme retained
Abdelkrim El Kadib et al.
Journal of nanoscience and nanotechnology, 14(1), 308-331 (2014-04-16)
Polysaccharides are a new class of pervasive biopolymers that display many advantages including wide availability, sustainability, inherent inclusion of chemical functionality, biocompatibility and biodegradability. Current efforts are focused on the catalytic transformation of these macromolecules into fuels and platform chemicals.
Changyun Qian et al.
Carbohydrate polymers, 97(2), 676-683 (2013-08-06)
In this study, N-phosphonium chitosans (NPCSs) with two degrees of substitution were synthesized in a homogeneous system as nonviral gene vectors. Grafted polymer/DNA complexes at various charge ratios were formulated and characterized. Particle sizes of NPCS/DNA complexes were between 110
K R Krishnapriya et al.
Analytical sciences : the international journal of the Japan Society for Analytical Chemistry, 24(8), 1045-1048 (2008-08-12)
A novel chitosan derivative has been synthesized by the condensation of a binucleating ligand, 2,6-bis[(N-methylpiperazine-1-yl)methyl]-4-formylphenol (BNL), with chitosan (CTS). The resulting material (CTS-BNL) was characterized and its adsorption properties towards copper(II) ions in aqueous solutions of various pH have been
K T Shalumon et al.
Journal of biomedical nanotechnology, 9(3), 430-440 (2013-04-30)
A biomimetic scaffold which can very closely mimic the extracellular matrix of the bone was fabricated by incorporating nano-bioceramic particles such as nano bioglass (nBG) and nano hydroxyapatite (nHAp) within electrospun nanofibrous scaffold. A comparative study between nHAp incorporated poly(caprolactone)
Mohammad Ali Khosravi Zanjani et al.
Iranian journal of pharmaceutical research : IJPR, 17(2), 753-766 (2018-06-09)
Microencapsulation with hydrocolloids as a modern technique has been used to prolong the survival of probiotics during exposure to harsh conditions. In this study, alginate-Hylon starch microcapsules with genipin cross-linked chitosan and poly-L-lysine coatings were developed to encapsulate four strains
Y Fan et al.
Journal of applied microbiology, 123(5), 1346-1358 (2017-08-18)
The activity of chitosan microparticles (CM) was examined using a matrix of conditions in order to assess the efficacy of CM as a mitigation against various strains of Salmonella enterica in agricultural water. Different concentrations of CM (0, 0·01, 0·1
Jihun Kang et al.
International journal of food microbiology, 179, 1-9 (2014-04-05)
Contamination of cold-smoked salmon by Listeria monocytogenes is a major concern for the seafood industry. The objectives of this study were to (i) determine the most effective bactericidal treatment for L. monocytogenes on salmon and (ii) optimize bactericidal and bacteriostatic
Mohammed S Khan et al.
Journal of biomedical nanotechnology, 9(1), 107-114 (2013-05-01)
Enterotoxigenic Escherichia coil (ETEC) infections result in large mortality rate and usually a frequent cause of diarrhea in infants and a major cause of economic losses in the swine industry. To prevent enterotoxigenic Escherichia coli infections animal needs an active
Miao Qiu et al.
Food chemistry, 155, 105-111 (2014-03-07)
The antifungal activity and effect of high-molecular weight chitosan (H-chitosan), low-molecular weight chitosan (L-chitosan) and carboxymethyl chitosan (C-chitosan) coatings on postharvest green asparagus were evaluated. L-chitosan and H-chitosan efficiently inhibited the radial growth of Fusarium concentricum separated from postharvest green
Johan O Westman et al.
PloS one, 7(11), e49335-e49335 (2012-11-16)
Saccharomyces cerevisiae CBS8066 encapsulated in semi-permeable alginate or alginate-chitosan liquid core capsules have been shown to have an enhanced tolerance towards complex dilute-acid lignocellulose hydrolysates and the lignocellulose-derived inhibitor furfural, as well as towards high temperatures. The underlying molecular reasons
Adrita Chakrabarti et al.
Cellular immunology, 287(1), 27-35 (2013-12-26)
Methylglyoxal (MG), the potent anticancer agent has been conjugated to a nontoxic, biocompatible polymer, chitosan, to protect it from in vivo enzymatic degradation. This polymeric complex, 'Nano-MG' shows remarkable antitumor property and elicits macrophage-mediated immunity in tumor bearing mice on
Ya-Chuan Hsiao et al.
Biomaterials, 113, 42-55 (2016-11-05)
The lacrimal gland is an important organ responsible for regulating tear synthesis and secretion. The major work of lacrimal gland (LG) is to lubricate the ocular surface and maintain the health of eyes. Functional deterioration of the lacrimal gland happens
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