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The harmful cyanobacteria blooms which usually form in spring and summer, cause global eutrophication of freshwater and coastal marine ecosystems. This study tried to utilize cyanobacteria as a raw material to produce biological poly(vinyl)alcohol-based films. Cyanobacteria was firstly modified with poly(ethylene glycol), guanidine hydrochloride, carboxymethyl cellulose and 3-glycidoxypropyltrimethoxysilane as plasticizer, modifier, toughening agent and coupling agent, respectively. And then the modified cyanobacteria was introduced to poly(vinyl)alcohol and cellulose nanofibers/poly(vinyl)alcohol matrix to improve the barrier properties of poly(vinyl)alcohol to light and water. Compared with poly(vinyl)alcohol and cellulose nanofibers/poly(vinyl)alcohol films, the obtained cyanobacteria/poly(vinyl)alcohol and the cyanobacteria/cellulose nanofibers/poly(vinyl)alcohol composites exhibit better resistance to light and water. More interestingly, we found that after adding cyanobacteria, the poly(vinyl)alcohol-based films present better barrier properties to blue-violet light and red light. In adddition, introducing cyanobacteria into poly(vinyl)alcohol or cellulose nanofibers/poly(vinyl)alcohol matrix increases the surface roughness and contact angle to water of the composites.
This article was published in the following journal.
Name: PloS one
Here, TiO nanoparticles have been doped into the polymer film-construct of Chitosan/poly (vinyl alcohol)/Nano-hydroxyapatite (CPHT I - III) to enhance the mechanical and biological properties of the f...
In this study, a new method for production of hydrogels with oriented multichannel structure based on chitosan-poly(vinyl alcohol) compositions was developed. Microscopic and biological studies of the...
We investigated the in vitro degradation and cytotoxic effects of edible films developed from pulsed electric fields (PEF) treated zein-chitosan-poly(vinyl alcohol) dispersions at specific energy 60-7...
Active biodegradable packaging films were developed with polyvinyl alcohol (PVA), chitosan (CS) and d-Limonene (DL). The effect of various DL content levels (0%, 2.5%, 5%, 7.5%, and 10% w/w) on the st...
Mixtures containing two polymers, chitosan (Ch) and poly(vinyl alcohol) (PVA) as well as mixtures with addition of an ionic liquid (IL) 1-butyl-3-methyl-imidazolium chloride (BMIMCl) were prepared via...
Surgical site infections (SSI) constitute a significant health-economic and clinical challenge. The investigators conducted a cluster-randomized, cross-over study to compare the efficacy o...
The purpose of this study is to evaluate FluMist with and without Ampligen in healthy volunteers.
The rate of adequate bowel preparation is one of important quality indicators of colonoscopy. Inadeqaute bowel preparation negatively affects the outcomes of colonoscopy. If patients with ...
This study aims to examine the efficacy of an enhanced alcohol intervention among individuals who are mandated to complete an alcohol education activity as part of a university sanction.
The purpose of this study is to compare the effects of interventions for drinking-reduction and antiretroviral therapy (ART) adherence among HIV-positive primary care patients. The interve...
A poly(A) binding protein that is involved in promoting the extension of the poly A tails of MRNA. The protein requires a minimum of ten ADENOSINE nucleotides in order for binding to mRNA. Once bound it works in conjunction with CLEAVAGE AND POLYADENYLATION SPECIFICITY FACTOR to stimulate the rate of poly A synthesis by POLY A POLYMERASE. Once poly-A tails reach around 250 nucleotides in length poly(A) binding protein II no longer stimulates POLYADENYLATION. Mutations within a GCG repeat region in the gene for poly(A) binding protein II have been shown to cause the disease MUSCULAR DYSTROPHY, OCULOPHARYNGEAL.
Works consisting of nonfiction films and video designed to teach, instruct, or train. (From Moving Image Materials: Genre Terms, 1988)
Compounds containing the vinyl (-C=CH2) functional group.
Works consisting of films, videos, and programs which depict actual persons or actual events. They do not include frank historical re-creations and do not attempt to judge the truth of the depiction in a film purporting to be factual or documentary in character. (From Moving Image Materials: Genre Terms, 1988)
A poly(ADP-ribose) polymerase that contains two ZINC FINGERS in its N-terminal DNA-binding region. It modifies NUCLEAR PROTEINS involved in chromatin architecture and BASE EXCISION REPAIR with POLY ADENOSINE DIPHOSPHATE RIBOSE.
Biological therapy involves the use of living organisms, substances derived from living organisms, or laboratory-produced versions of such substances to treat disease. Some biological therapies for cancer use vaccines or bacteria to stimulate the body&rs...