Positive and Negative Electrorheological Response of Alginate Salts Dispersed Suspensions under Electric Field
Electrorheological (ER) effects of alginic acid and alginate salts (Na+ alginate, NH4 + alginate, and Ca2+ alginate) dispersed suspensions were investigated under DC electric fields. A noteworthy result is that the Ca2+ alginate dispersed suspension showed negative electrorheological effects under e...
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| Veröffentlicht in: | ACS applied materials & interfaces 2013-02, Vol.5 (3), p.1122-1130 |
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| creator | Ko, Young Gun Lee, Hyun Jeong Chun, Yong Jin Choi, Ung Su Yoo, Ki Pung |
| description | Electrorheological (ER) effects of alginic acid and alginate salts (Na+ alginate, NH4 + alginate, and Ca2+ alginate) dispersed suspensions were investigated under DC electric fields. A noteworthy result is that the Ca2+ alginate dispersed suspension showed negative electrorheological effects under electric fields while the other suspensions exhibited positive electrorheological effects. It is the first time that the negative ER effect is obtained with the biomacromolecule. Interestingly, at the DC electric fields, the electromigration of particles to two electrodes was observed in the negative ER fluid, while the particles-bridges formed between two electrodes in the case of the positive ER fluid. In conclusion, the specific salt type of biomacromolecules could be suitable ER particles for negative ER suspension. We believe that our study can present a new way for the development of the biocompatible and eco-friendly negative ER fluids. |
| doi_str_mv | 10.1021/am302891w |
| format | Article |
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A noteworthy result is that the Ca2+ alginate dispersed suspension showed negative electrorheological effects under electric fields while the other suspensions exhibited positive electrorheological effects. It is the first time that the negative ER effect is obtained with the biomacromolecule. Interestingly, at the DC electric fields, the electromigration of particles to two electrodes was observed in the negative ER fluid, while the particles-bridges formed between two electrodes in the case of the positive ER fluid. In conclusion, the specific salt type of biomacromolecules could be suitable ER particles for negative ER suspension. We believe that our study can present a new way for the development of the biocompatible and eco-friendly negative ER fluids.</description><identifier>ISSN: 1944-8244</identifier><identifier>EISSN: 1944-8252</identifier><identifier>DOI: 10.1021/am302891w</identifier><identifier>PMID: 23336370</identifier><language>eng</language><publisher>United States: American Chemical Society</publisher><ispartof>ACS applied materials & interfaces, 2013-02, Vol.5 (3), p.1122-1130</ispartof><rights>Copyright © 2013 American Chemical Society</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-a381t-46ab944f83a96ec75ee6bea7fd5fce945b5efd25853e9aee079b938f69f4cdfd3</citedby><cites>FETCH-LOGICAL-a381t-46ab944f83a96ec75ee6bea7fd5fce945b5efd25853e9aee079b938f69f4cdfd3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://pubs.acs.org/doi/pdf/10.1021/am302891w$$EPDF$$P50$$Gacs$$H</linktopdf><linktohtml>$$Uhttps://pubs.acs.org/doi/10.1021/am302891w$$EHTML$$P50$$Gacs$$H</linktohtml><link.rule.ids>314,778,782,2754,27059,27907,27908,56721,56771</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/23336370$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Ko, Young Gun</creatorcontrib><creatorcontrib>Lee, Hyun Jeong</creatorcontrib><creatorcontrib>Chun, Yong Jin</creatorcontrib><creatorcontrib>Choi, Ung Su</creatorcontrib><creatorcontrib>Yoo, Ki Pung</creatorcontrib><title>Positive and Negative Electrorheological Response of Alginate Salts Dispersed Suspensions under Electric Field</title><title>ACS applied materials & interfaces</title><addtitle>ACS Appl. 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| title | Positive and Negative Electrorheological Response of Alginate Salts Dispersed Suspensions under Electric Field |
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