نتایج جستجو برای: alginate biopolymer

تعداد نتایج: 49856  

Journal: :Journal of Inorganic and Organometallic Polymers and Materials 2021

The current investigation addresses the alternating electrical properties, electrochemical characteristics on biopolymer as Withania somnifera leaf extract incorporated sodium alginate [WLISA] polymer film prepared by solution casting method. Some crystallinity along with amorphous nature of emerged due to incorporation [WSLE]. Two absorption maximum (λmax) were obtained for both WLISA and WSLE...

2017
R T De Silva M M M G P G Mantilaka K L Goh S P Ratnayake G A J Amaratunga K M Nalin de Silva

Mechanically robust alginate-based nanofibrous scaffolds were successfully fabricated by electrospinning method to mimic the natural extracellular matrix structure which benefits development and regeneration of tissues. Alginate-based nanofibres were electrospun from an alginate/poly(vinyl alcohol) (PVA) polyelectrolyte complex. SEM images revealed the spinnability of the complex composite nano...

Objective(s): Pseudomonas aeruginosais a Gram-negative and aerobic rod bacterium that displays mucoid and non-mucoid phenotype. Mucoid strains secrete alginate, which is the main agent of biofilms in chronic P. aeruginosa infections, show high resistance to antibiotics; consequently, the biological disruption of mucoid P. aeruginosa biofilms is an attractive area of study for researchers. Algin...

2013
Litty Joseph Dhanya

Background: Textile industry has been condemned as one of the world’s worst offenders in terms of pollution because 10-15% of all the dyes used in the industry are lost within wastewater during processing. The presence of even very low concentrations of dyes in effluent is highly visible and degradation products of these textile dyes are often carcinogenic. Owing to the complex nature of synthe...

Journal: :Letters in applied microbiology 2002
S W Kim H J Hwang J P Park Y J Cho C H Song J W Yun

AIMS The effect of synthetic media on the submerged mycelial growth and exo-biopolymer production in various edible mushrooms was investigated in shake flask culture. METHODS AND RESULTS Among 19 mushrooms examined, the relatively high yield in mycelial biomass and exo-biopolymer production was achieved in potato malt peptone (PMP) medium. In particular, Ganoderma lucidum NO. 1 and Phellinus ...

Assessment of adsorption zinc (II) ions from aqueous solution using alginate-SBA-15 sorbent nanocomposite was investigated as a function of zinc concentration, solution pH, and contact time. For that purpose, the alginate-SBA-15 nanocomposite adsorbent was prepared through encapsulation method by immobilization mesoporous SBA-15 into a polymeric matrix. Identification of functional groups and s...

2013

• Introduction • What are alginate dressings? • How do alginate dressings work? • What are the main indications for alginate dressings? • Are there any side effects of alginate dressings? • Is there any difference between brands? • Is alginate an effective haemostat? • Does zinc make a difference in haemostatic performance? • What is the role of alginate dressings in split skin graft donor site...

Journal: :Applied and environmental microbiology 2006
Uwe Remminghorst Bernd H A Rehm

An enzymatic in vitro alginate polymerization assay was developed by using 14C-labeled GDP-mannuronic acid as a substrate and subcellular fractions of alginate overproducing Pseudomonas aeruginosa FRD1 as a polymerase source. The highest specific alginate polymerase activity was detected in the envelope fraction, suggesting that cytoplasmic and outer membrane proteins constitute the functional ...

2018
Peng Chen Yueming Zhu Yan Men Yan Zeng Yuanxia Sun

Alginate oligosaccharides with different bioactivities can be prepared through the specific degradation of alginate by alginate lyases. Therefore, alginate lyases that can be used to degrade alginate under mild conditions have recently attracted public attention. Although various types of alginate lyases have been discovered and characterized, few can be used in industrial production. In this s...

Journal: :journal of genetic resources 2015
hoda gol fakhrabadi parinaz ghadam parisa mohammadi ahya adbi ali

pseudomonas aeruginosa is an opportunistic pathogen that causes a variety of infections in compromised patients. the ability of pseudomonas aeruginosa to produce chronic infection is based in part on its ability to biosynthesis of biofilm, and alginate is the major polysaccharide in the synthesized biofilm. so alginate degradation is very essential in the dispersion of pseudomonas aeruginosa bi...

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