Novel treatment of Microcystis aeruginosa using chitosan-modified nanobubbles
DC Field | Value | Language |
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dc.contributor.author | Nam, Gwiwoong | - |
dc.contributor.author | Mohamed, Mohamed M. | - |
dc.contributor.author | Jung, Jinho | - |
dc.date.accessioned | 2022-02-22T19:42:18Z | - |
dc.date.available | 2022-02-22T19:42:18Z | - |
dc.date.created | 2022-02-15 | - |
dc.date.issued | 2022-01-01 | - |
dc.identifier.issn | 0269-7491 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/136536 | - |
dc.description.abstract | In this study, we treated harmful Microcystis aeruginosa cyanobacteria using chitosan-modified nanobubbles. The chitosan-modified nanobubbles (255 +/- 19 nm) presented a positive zeta potential (15.36 +/- 1.17 mV) and generated significantly (p < 0.05) more hydroxyl radicals than the negatively charged nanobubbles (-20.68 +/- 1.11 mV). Therefore, the interaction between the positively charged chitosan-modified nanobubbles and negatively charged M. aeruginosa (-34.81 +/- 1.79 mV) was favored. The chitosan-modified nanobubble treatment (2.20 x 10(8) particles mL(-1)) inactivated 73.16% +/- 2.23% of M. aeruginosa (2.00 x 10(6) cells mL(-1)) for 24 h without causing significant cell lysis (<= 0.25%) and completely inhibited the acute toxicity of M. aeruginosa toward Daphnia magna. The inactivation was correlated (r(2) = 0.97) with the formation of reactive oxygen species (ROS) in M. aeruginosa. These findings indicated that the hydroxyl radicals generated by the chitosan-modified nanobubbles disrupted cell membrane integrity and enhanced oxidative stress (ROS formation), thereby inactivating M. aeruginosa. Moreover, the penetration of the chitosan-modified nanobubbles and cell alterations in M. aeruginosa were visually confirmed. Our results suggested that the chitosan-modified nanobubble treatment is an eco-friendly method for controlling harmful algae. However, further studies are required for expanding its practical applications. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | ELSEVIER SCI LTD | - |
dc.subject | DISINFECTION BY-PRODUCTS | - |
dc.subject | DISSOLVED AIR FLOTATION | - |
dc.subject | CELL INTEGRITY | - |
dc.subject | ANTIBACTERIAL ACTIVITY | - |
dc.subject | CYANOBACTERIAL BLOOMS | - |
dc.subject | BUBBLE SURFACE | - |
dc.subject | TOXIN RELEASE | - |
dc.subject | WATER | - |
dc.subject | INACTIVATION | - |
dc.subject | REMOVAL | - |
dc.title | Novel treatment of Microcystis aeruginosa using chitosan-modified nanobubbles | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Jung, Jinho | - |
dc.identifier.doi | 10.1016/j.envpol.2021.118458 | - |
dc.identifier.scopusid | 2-s2.0-85118507229 | - |
dc.identifier.wosid | 000744240000007 | - |
dc.identifier.bibliographicCitation | ENVIRONMENTAL POLLUTION, v.292 | - |
dc.relation.isPartOf | ENVIRONMENTAL POLLUTION | - |
dc.citation.title | ENVIRONMENTAL POLLUTION | - |
dc.citation.volume | 292 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Environmental Sciences & Ecology | - |
dc.relation.journalWebOfScienceCategory | Environmental Sciences | - |
dc.subject.keywordPlus | DISINFECTION BY-PRODUCTS | - |
dc.subject.keywordPlus | DISSOLVED AIR FLOTATION | - |
dc.subject.keywordPlus | CELL INTEGRITY | - |
dc.subject.keywordPlus | ANTIBACTERIAL ACTIVITY | - |
dc.subject.keywordPlus | CYANOBACTERIAL BLOOMS | - |
dc.subject.keywordPlus | BUBBLE SURFACE | - |
dc.subject.keywordPlus | TOXIN RELEASE | - |
dc.subject.keywordPlus | WATER | - |
dc.subject.keywordPlus | INACTIVATION | - |
dc.subject.keywordPlus | REMOVAL | - |
dc.subject.keywordAuthor | Alga | - |
dc.subject.keywordAuthor | Chitosan | - |
dc.subject.keywordAuthor | Cyanobacteria | - |
dc.subject.keywordAuthor | Hydroxyl radical | - |
dc.subject.keywordAuthor | Nanobubble | - |
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