DC Field | Value | Language |
---|---|---|
dc.contributor.author | Dong Woog Lee | - |
dc.contributor.author | Chanoong Lim | - |
dc.contributor.author | Jacob N. Israelachvili | - |
dc.contributor.author | Hwang, DS | - |
dc.date.accessioned | 2016-04-01T08:10:13Z | - |
dc.date.available | 2016-04-01T08:10:13Z | - |
dc.date.created | 2013-11-21 | - |
dc.date.issued | 2013-11-19 | - |
dc.identifier.issn | 0743-7463 | - |
dc.identifier.other | 2013-OAK-0000028283 | - |
dc.identifier.uri | https://oasis.postech.ac.kr/handle/2014.oak/27381 | - |
dc.description.abstract | Chitosan, a load-bearing biomacromolecule found in the exoskeletons of crustaceans and insects, is a promising biopolymer for the replacement of synthetic plastic compounds. Here, surface interactions mediated by chitosan in aqueous solutions, including the effects of pH and contact time, were investigated using a surface forces apparatus (SFA). Chitosan films showed an adhesion to mica for all tested pH ranges (3.0-8.5), achieving a maximum value at pH 3.0 after a contact time of 1 h (W-ad similar to 6.4 mJ/m(2)). We also found weak or no cohesion between two opposing chitosan layers on mica in aqueous buffer until the critical contact time for maximum adhesion (chitosan-mica) was reached. Strong cohesion (W-co similar to 8.5 mJ/m(2)) between the films was measured with increasing contact times up to 1 h at pH 3.0, which is equivalent to similar to 60% of the strongest, previously reported, mussel underwater adhesion. Such time-dependent adhesion properties are most likely related to molecular or molecular group reorientations and interdigitations. At high pH (8.5), the solubility of chitosan changes drastically, causing the chitosan-chitosan (cohesion) interaction to be repulsive at all separation distances and contact times. The strong contact time and pH-dependent chitosan-chitosan cohesion and adhesion properties provide new insight into the development of chitosan-based load-bearing materials. | - |
dc.description.statementofresponsibility | X | - |
dc.language | English | - |
dc.publisher | American Chemical Society | - |
dc.relation.isPartOf | LANGMUIR | - |
dc.title | Strong Adhesion and Cohesion of Chitosan in Aqueous Solutions | - |
dc.type | Article | - |
dc.contributor.college | 융합생명공학부 | - |
dc.identifier.doi | 10.1021/LA403124U | - |
dc.author.google | Lee D.W., Lim C., Israelachvili J.N., Hwang D.S. | - |
dc.relation.volume | 29 | - |
dc.relation.issue | 46 | - |
dc.relation.startpage | 14222 | - |
dc.relation.lastpage | 14229 | - |
dc.contributor.id | 10167197 | - |
dc.relation.journal | LANGMUIR | - |
dc.relation.sci | SCI | - |
dc.collections.name | Journal Papers | - |
dc.type.rims | ART | - |
dc.identifier.bibliographicCitation | LANGMUIR, v.29, no.46, pp.14222 - 14229 | - |
dc.identifier.wosid | 000330144100028 | - |
dc.date.tcdate | 2019-02-01 | - |
dc.citation.endPage | 14229 | - |
dc.citation.number | 46 | - |
dc.citation.startPage | 14222 | - |
dc.citation.title | LANGMUIR | - |
dc.citation.volume | 29 | - |
dc.contributor.affiliatedAuthor | Hwang, DS | - |
dc.identifier.scopusid | 2-s2.0-84888351915 | - |
dc.description.journalClass | 1 | - |
dc.description.journalClass | 1 | - |
dc.description.wostc | 38 | - |
dc.description.scptc | 27 | * |
dc.date.scptcdate | 2018-05-121 | * |
dc.type.docType | Article | - |
dc.subject.keywordPlus | DEPENDENT INTERACTIONS | - |
dc.subject.keywordPlus | ARTICULAR JOINTS | - |
dc.subject.keywordPlus | ELASTIC SOLIDS | - |
dc.subject.keywordPlus | FOOT PROTEIN | - |
dc.subject.keywordPlus | CHITIN | - |
dc.subject.keywordPlus | SALTS | - |
dc.subject.keywordPlus | PH | - |
dc.subject.keywordPlus | DEACETYLATION | - |
dc.subject.keywordPlus | CONFORMATION | - |
dc.subject.keywordPlus | FLEXIBILITY | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Multidisciplinary | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Physical | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Multidisciplinary | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Chemistry | - |
dc.relation.journalResearchArea | Materials Science | - |
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