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Biodegradable chito-beads replacing non-biodegradable microplastics for cosmetics

Authors
Ju, SungbinShin, GiyoungLee, MinkyungKoo, Jun MoJeon, HyeonyeolOk, Yong SikHwang, Dong SooHwang, Sung YeonOh, Dongyeop X.Park, Jeyoung
Issue Date
21-9월-2021
Publisher
ROYAL SOC CHEMISTRY
Citation
GREEN CHEMISTRY, v.23, no.18, pp.6953 - 6965
Indexed
SCIE
SCOPUS
Journal Title
GREEN CHEMISTRY
Volume
23
Number
18
Start Page
6953
End Page
6965
URI
https://scholar.korea.ac.kr/handle/2021.sw.korea/137665
DOI
10.1039/d1gc01588e
ISSN
1463-9262
Abstract
The global ban on plastic microbeads for personal care products has forced researchers to find sustainable alternatives. However, current biodegradable microbeads rarely offer competitive qualities such as those related to the mechanical properties, stability, and toxicity of their degraded products. Herein, we synthesized 'chito-beads', which can satisfy the aforementioned requirements, and evaluated their practical usage, biodegradability, and phytotoxicity. Chito-beads were made into uniform spherical microbeads with a diameter of 280 mu m through the reacetylation of chitosan - a renewable polymer from crustacean waste via an inverse emulsion system. Chito-beads exhibit a higher cleansing efficiency than conventional polyethylene microbeads, with a hardness of 128 MPa. Furthermore, they can be used to remove potentially toxic elements and are stable and functional in commercial cleansing. The used chito-beads were fully degraded in soils without any toxicity to the model plants. Our alternative can be used as competitive and environmentally friendly microparticles in sustainable daily necessities.
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College of Life Sciences and Biotechnology > Division of Environmental Science and Ecological Engineering > 1. Journal Articles

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