Preparation of cyanobacteria-enhanced poly(vinyl)alcohol-based films with resistance to blue-violet light / red light and water

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...

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Bibliographic Details
Published in:PloS one 2020-02, Vol.15 (2), p.e0228814-e0228814
Main Authors: Chen, Sainan, Liu, Di, Qian, Min, Xu, Li, Li, Ying, Sun, Haozhong, Wang, Xi, Zhou, Haiyun, Bao, Jian, Xu, Changyan
Format: Article
Language:English
Subjects:
Alcohols
Aquatic ecosystems
Biology and Life Sciences
Biomimetic Materials - chemistry
Biomimetic Materials - radiation effects
Carboxymethyl cellulose
Carboxymethylcellulose
Cellulose
Cellulose - chemistry
Cellulosic resins
Coastal ecosystems
Contact angle
Coupling agents
Cyanobacteria
Cyanobacteria - chemistry
Engineering
Engineering and Technology
Environmental engineering
Environmental science
Eutrophication
Freshwater ecosystems
Guanidine
Guanidine - chemistry
Guanidine hydrochloride
Hydrogen bonds
Laboratories
Light
Marine ecosystems
Materials science
Materials Testing
Methods
Nanofibers
Nanofibers - chemistry
Oxygen - chemistry
Physical Sciences
Plasticizers - chemistry
Polyethylene glycol
Polymer matrix composites
Polyvinyl alcohol
Polyvinyl Alcohol - chemistry
Raw materials
Surface Properties
Surface roughness
Ultraviolet Rays
Water - chemistry
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Summary: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.
ISSN:1932-6203
1932-6203
DOI:10.1371/journal.pone.0228814