Results 31 to 40 of about 6,829 (180)

Physicochemical characteristics of chitosan from swimming crab (Portunus trituberculatus) shells prepared by subcritical water pretreatment

open access: yesScientific Reports, 2021
The physicochemical properties of chitosan obtained from the shells of swimming crab (Portunus trituberculatus) and prepared via subcritical water pretreatment were examined.
Gengxin Hao   +6 more
doaj   +1 more source

Characterization and cytotoxicity of low-molecular-weight chitosan and chito-oligosaccharides derived from tilapia fish scales

open access: yesJournal of Advanced Pharmaceutical Technology & Research, 2021
The present study evaluated the physicochemical characterization and cytotoxicity activity of chitosan and chito-oligosaccharides (COSs). The extraction of chitosan and COSs was executed by chemical hydrolysis.
Gul-e-Saba Chaudhry   +5 more
doaj   +1 more source

Synthesis and Evaluation of a Chitosan Oligosaccharide-Streptomycin Conjugate against Pseudomonas aeruginosa Biofilms

open access: yesMarine Drugs, 2019
Microbial biofilms are considerably more resistant to antibiotics than planktonic cells. It has been reported that chitosan coupling with the aminoglycoside antibiotic streptomycin dramatically disrupted biofilms of several Gram-positive bacteria.
Ruilian Li   +6 more
doaj   +1 more source

Kinetic Modeling of an Enzyme Membrane Reactor for the Selective Production of Oligosaccharides

open access: yesFermentation, 2022
An enzyme membrane reactor is an attractive tool for producing oligosaccharides from biomass-based polysaccharides. However, kinetic modeling and reactor design based on the rate equations have rarely been reported for enzyme membrane reactors because of
Shusaku Asano   +4 more
doaj   +1 more source

Peptide Receptor‐Functionalized AuNP‐Embedded Zwitterionic Biopolymeric Nanohydrogel for Electrochemical Sclerostin Sensing

open access: yesAdvanced Science, EarlyView.
We report an electrochemical biosensor that employs biopanning‐derived affinity peptides as selective receptors on a multifunctional chitosan–zwitterionic–gold nanoparticle (CS–ZI–AuNPs) nanohydrogel interface. The CS–ZI–AuNPs nanohydrogel exhibits antifouling properties, abundant sites for stable peptide immobilization, and efficient electrochemical ...
Hyo Jeong Yang   +6 more
wiley   +1 more source

Chitosanases from Family 46 of Glycoside Hydrolases: From Proteins to Phenotypes

open access: yesMarine Drugs, 2015
Chitosanases, enzymes that catalyze the endo-hydrolysis of glycolytic links in chitosan, are the subject of numerous studies as biotechnological tools to generate low molecular weight chitosan (LMWC) or chitosan oligosaccharides (CHOS) from native, high
Pascal Viens   +2 more
doaj   +1 more source

Nitric oxide-releasing chitosan oligosaccharides as antibacterial agents

open access: yesBiomaterials, 2014
Secondary amine-functionalized chitosan oligosaccharides of different molecular weights (i.e., ~2500, 5000, 10000) were synthesized by grafting 2-methyl aziridine from the primary amines on chitosan oligosaccharides, followed by reaction with nitric oxide (NO) gas under basic conditions to yield N-diazeniumdiolate NO donors.
Yuan Lu   +2 more
openaire   +3 more sources

Mucin Glycoprotein Nanoparticles Enable a Selective Antisense Therapy for Oncogenic MicroRNAs

open access: yesAdvanced NanoBiomed Research, EarlyView.
Mucin glycoproteins are turned into nanoparticles by employing synthetic DNA strands, which have a dual function: they stabilize the nanoparticles and act as binding sites for intracellular miRNA‐21. Thus, upon internalization into tumor cells, these mucin nanoparticles can deplete miRNA‐21 from the cytosol, which induces apoptosis in vitro and in vivo.
Ceren Kimna   +9 more
wiley   +1 more source

Effects of oligosaccharides on performance, egg quality, nutrient digestibility, antioxidant status, and immunity of laying hens: a meta-analysis

open access: yesItalian Journal of Animal Science, 2023
A meta-analysis was conducted to determine the effects of different types of oligosaccharides (OS) on the egg quality, intestinal profile, nutrient digestibility, and immunity of laying hens. A dataset was constructed from articles published between 2006
Danung Nur Adli   +9 more
doaj   +1 more source

Characterization and Caco-2 Cell Transport Assay of Chito-Oligosaccharides Nano-Liposomes Based on Layer-by-Layer Coated

open access: yesMolecules, 2021
Chito-oligosaccharides (COSs) were encapsulated by the film-ultrasonic method into three nano-liposomes, which were uncoated liposomes (COSs-Lip), chitosan-coated liposomes (CH-COSs-Lip), and sodium alginate (SA)/chitosan (CH)-coated liposomes (SA/CH ...
Tingting Cui   +8 more
doaj   +1 more source

Home - About - Disclaimer - Privacy