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Showing 1-30 of 177 results for "C3646" within Papers
Sandra Elisa Haas et al.
Pharmaceutical development and technology, 19(7), 769-778 (2013-09-04)
The aim of this study was to develop innovative nanosystems with isopropyl myristate as the oil core of self-assembly nanovesicles constituted of chitosan and lecithin using a 2(3) factorial design. The factors analyzed were chitosan (X1, levels 4 and 8
Lili Zhang et al.
Journal of chromatography. A, 1365, 86-93 (2014-09-30)
Fourteen chitosan 3,6-diphenylcarbamate-2-urea derivatives were synthesized using well-deacetylated chitosan and the corresponding phenyl isocyanates. After coating them on silica gel, their chiral recognition abilities were evaluated as the chiral stationary phases (CSPs) for high-performance liquid chromatography. These coated-type CSPs exhibited
Xiaoxia Li et al.
Investigative ophthalmology & visual science, 54(10), 6877-6885 (2013-09-28)
We investigated the morphologic characteristics and proliferation of rabbit corneal stromal cells (CSCs) onto scaffolds under simulated microgravity. Rabbit CSCs were cultured under simulated microgravity (SMG) and static condition. Complexes of collagen-chitosan-sodium hyaluronate with pores were used as scaffolds. Rotational
Soheyla Honary et al.
Pharmaceutical development and technology, 19(8), 987-998 (2013-10-24)
Treating vancomycin-resistant Staphylococcus aureus strains requires high doses of vancomycin, which might lead to adverse reactions such as nephrotoxicity and "red neck syndrome". Use of nanotechnology for antibiotic delivery is a promising approach to overcome antibiotic-resistance. The objective of this
Yeyan Qiu et al.
Journal of nanoscience and nanotechnology, 13(8), 5935-5941 (2013-07-26)
Self-assembled nanoparticles were synthesized from water-soluble fructose-chitosan, substituted by succinyl linkages with phytosterols as hydrophobic moieties for self-assembly. The physicochemical properties of the prepared self-assembled nanoparticles were characterized by Fourier transform infrared spectroscopy, fluorescence spectroscopy, and transmission electron microscopy. Doxorubicin
Sudheesh K Shukla et al.
International journal of biological macromolecules, 59, 46-58 (2013-04-24)
This manuscript briefly reviews the extensive research as well as new developments on chitosan based nanomaterials for various applications. Chitosan is a biocompatible and biodegradable polymer having immense structural possibilities for chemical and mechanical modification to generate novel properties and
Liisa T Kuhn et al.
Tissue engineering. Part A, 20(1-2), 365-377 (2013-08-21)
The in vivo osteogenesis potential of mesenchymal-like cells derived from human embryonic stem cells (hESC-MCs) was evaluated in vivo by implantation on collagen/hydroxyapatite scaffolds into calvarial defects in immunodeficient mice. This study is novel because no osteogenic or chondrogenic differentiation
Yaqiong Zhang et al.
Food chemistry, 142, 269-275 (2013-09-05)
Thymol-loaded zein nanoparticles stabilized with sodium caseinate (SC) and chitosan hydrochloride (CHC) were prepared and characterized. The SC stabilized nanoparticles had well-defined size range and negatively charged surface. Due to the presence of SC, the stabilized zein nanoparticles showed a
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
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
Wael M Samy et al.
Expert opinion on drug delivery, 11(10), 1525-1536 (2014-06-19)
Study the possible benefit of combining biodegradable polymers with sildenafil citrate (SC) in wound healing. Biodegradable micronized powdered formulations of SC were prepared by spray drying using chitosan (P₁) or chitosan/gum Arabic (P₂). Powders were characterized by differential scanning calorimetry
Felipe S Barreto et al.
Molecular ecology resources, 15(4), 868-879 (2014-12-10)
Reverse genetic tools are essential for characterizing phenotypes of novel genes and testing functional hypotheses generated from next-generation sequencing studies. RNA interference (RNAi) has been a widely used technique for describing or quantifying physiological, developmental or behavioural roles of target
Tao Jiang et al.
Journal of nanoscience and nanotechnology, 13(8), 5291-5295 (2013-07-26)
Lactobacillus plantarum 25 (LP25) encapsulated into alginate/chitosan/alginate (ACA) microcapsules (LP25-ACA MCs) prepared by an extrusion methods were characterized to assess their efficacy in oral delivery. The particle sizes of LP25-ACA MCs were 1.11 +/- 0.32 mm. The loading content of
W E Müller et al.
European cells & materials, 31, 174-190 (2016-02-24)
Here we describe a novel bioinspired hydrogel material that can be hardened with calcium ions to yield a scaffold material with viscoelastic properties matching those of cartilage. This material consists of a negatively charged biopolymer triplet, composed of morphogenetically active
Muhammad Ibrahim et al.
Archives of microbiology, 196(1), 9-16 (2013-11-12)
Chitosan, a versatile derivative of chitin, is widely used as an antimicrobial agent either alone or mixed with other natural polymers. Burkholderia cenocepacia is a multidrug-resistant bacteria and difficult to eradicate. Our previous studies shown that chitosan had strong antibacterial
Shifeng Yan et al.
International journal of pharmaceutics, 427(2), 443-451 (2012-02-04)
Nanoporous poly(L-glutamic acid)/chitosan (PLGA/CS) multilayer microcapsules were fabricated by layer-by-layer (LbL) assembly using the porous silica particles as sacrificial templates. The LbL assembled nanoporous PLGA/CS microcapsules were characterized by Zeta-potential analyzer, FTIR, TGA, SEM, TEM and CLSM. 5-Fluorouracil (5-FU) was
Electrochemical biosensor applications of polysaccharides chitin and chitosan.
Wipa Suginta et al.
Chemical reviews, 113(7), 5458-5479 (2013-04-06)
Po-Chun Wang et al.
Journal of cosmetic science, 64(4), 273-286 (2013-08-13)
Palmitoyl glycol chitosan (GCP) hydrogel has been reported as erodible controlled-release systems for the delivery of both hydrophilic and hydrophobic molecules. In this study we prepared lauroyl/palmitoyl glycol chitosan (GCL/GCP) in gel form and evaluated their application for skin delivery
J Shilpa et al.
Journal of biomedical nanotechnology, 10(4), 622-631 (2014-04-17)
Use of nanoparticulate drug delivery system for an effective therapeutic outcome against diseases gains immense hope in the study of drug delivery to partially hepatectomised rats. In the present study, partially hepatectomised rats treated with Gamma aminobutyric acid (GABA) and
Gregory H Bird et al.
The Journal of clinical investigation, 124(5), 2113-2124 (2014-04-20)
Respiratory syncytial virus (RSV) infection accounts for approximately 64 million cases of respiratory disease and 200,000 deaths worldwide each year, yet no broadly effective prophylactic or treatment regimen is available. RSV deploys paired, self-associating, heptad repeat domains of its fusion
Maryam Latifian et al.
Environmental technology, 35(17-20), 2289-2295 (2014-08-26)
One of the major setbacks of struvite recovery processes is the difficulty in harvesting struvite crystals. This study evaluates the use of different coagulants to improve precipitation of struvite (MgNH4PO4.6H20) crystals. Chitosan and poly(diallyldimethyl ammonium chloride) (Poly-DADMAC) as a coagulant-flocculent
Oluwatoosin B A Agbaje et al.
Biochemistry and biophysics reports, 26, 100939-100939 (2021-03-02)
Biochemical studies and spectroscopic techniques have shown that chitin-silk fibroins are common in nacroprismatic bivalve shells. However, the nature of organic biopolymers in the less well studied shell architectures, such as crossed lamellar shells, remain unknown. Here, two venus shells
Laura Higueras et al.
International journal of food microbiology, 188, 53-59 (2014-08-05)
Chitosan/cyclodextrin films (CS:CD) incorporating carvacrol were obtained by casting, and conditioned at 23°C and 75% relative humidity prior to being immersed in liquid carvacrol until they reached sorption equilibrium. In a previous work, the in vitro antimicrobial activity of these
P D Chethan et al.
Carbohydrate polymers, 97(2), 530-536 (2013-08-06)
Selective modification of chitosan has been achieved by incorporating ethylene-1,2-diamine molecule in a regioselective manner using N-phthaloylchitosan and chloro-6-deoxy N-phthaloylchitosan as precursors. The present modification results in additional nitrogen centres which function as potential binding sites during adsorption of metal
Mohammad Mahmoudzadeh et al.
Journal of drug targeting, 21(8), 693-709 (2013-08-07)
Hydrophobically modified chitosan-based polymeric micelles (CBPMs) are formed through self-aggregation of chitosan amphiphilic derivatives. Their core-shell structure, diversity and the fact that all of their properties are adjustable through reconciling the interactions among their three main constituents: chitosan, hydrophilic segment
Xiaosong Li et al.
Clinical & developmental immunology, 2013, 387023-387023 (2013-03-28)
With the development of cancer immunotherapy, cancer vaccine has become a novel modality for cancer treatment, and the important role of adjuvant has been realized recently. Chitin, chitosan, and their derivatives have shown their advantages as adjuvants for cancer vaccine.
Renata V Contri et al.
Journal of biomedical nanotechnology, 10(5), 820-830 (2014-04-17)
This work explored the effect of the encapsulation in polymeric nanocapsules, as well as of the incorporation of such nanoparticles in a chitosan hydrogel, on the skin adhesion and skin penetration/permeation of capsaicinoids (capsaicin and dihydrocapsaicin), which are used as
Jean-Denis Mathias et al.
International journal of molecular sciences, 12(2), 1175-1186 (2011-05-05)
Developing biofoams constitutes a challenging issue for several applications. The present study focuses on the development of a chitosan-based biofoam. Solutions of chitosan in acetic acid were dried under vacuum to generate foams with high-order structures. Chitosan concentration influenced significantly
Dae-Sung Lee et al.
Canadian journal of microbiology, 60(10), 629-638 (2014-09-13)
Methicillin-resistant Staphylococcus aureus (MRSA) is spreading worldwide, emphasizing the need to search for new antibiotics. The anti-MRSA activities of gallic acid-grafted-chitosans (GA-g-chitosans) were investigated against 2 MRSA standards and 10 MRSA clinical isolates by determining the minimum inhibitory concentrations (MICs).
D J Griffon et al.
Stem cells international, 2016, 2987140-2987140 (2016-07-06)
Chitosan opens new perspectives in regenerative medicine as it enhances the properties of mesenchymal stem cells (MSCs) through formation of spheroids. Hypoxia has also been proposed to enhance stemness and survival of MSCs after in vivo implantation. These characteristics are
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