Amphiphilic silver-delaminated clay nanohybrids and their composites with polyurethane: physico-chemical and biological evaluations.
Identifieur interne : 000935 ( Main/Corpus ); précédent : 000934; suivant : 000936Amphiphilic silver-delaminated clay nanohybrids and their composites with polyurethane: physico-chemical and biological evaluations.
Auteurs : Ting-Yen Chi ; Hsi-Yi Yeh ; Jiang-Jen Lin ; U-Ser Jeng ; Shan-Hui HsuSource :
- Journal of materials chemistry. B [ 2050-7518 ] ; 2013.
Abstract
Silver nanoparticles (AgNPs) exhibit size-dependent bactericidal activity. They are, however, subject to aggregation when added to most hydrophobic polymers. In this study, a surfactant-modified delaminated clay (surfactant-capped nanosilicate platelets, or "NSQ") was employed to be a nanocarrier for AgNPs. The nanohybrid of AgNPs and NSQ ("AgNP/NSQ") in aqueous solution showed remarkable bactericidal effect as well as negligible cytotoxicity and immune response at a concentration of 10 ppm. Poly(carbonate)urethane (PCU) with different hard/soft segment ratios was synthesized and used in the preparation of the nanocomposites, PCU-AgNP/NSQ. Based on TEM observation, AgNP/NSQ was well dispersed in the resulting nanocomposites. The reinforcing effects of AgNP/NSQ in nanocomposites were distinct for PCU with different hard/soft segment ratios. The phase-separated structure of PCU-AgNP/NSQ nanocomposites was investigated by small-angle X-ray scattering (SAXS). PCU-AgNP/NSQ containing 75 ppm of Ag demonstrated superior microbiostatic effect, as well as better biodurability and lower foreign body reaction than the commercial Pellethane 2363-80A.
DOI: 10.1039/c3tb20113a
PubMed: 32260851
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B</title><idno type="eISSN">2050-7518</idno><imprint><date when="2013" type="published">2013</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Silver nanoparticles (AgNPs) exhibit size-dependent bactericidal activity. They are, however, subject to aggregation when added to most hydrophobic polymers. In this study, a surfactant-modified delaminated clay (surfactant-capped nanosilicate platelets, or "NSQ") was employed to be a nanocarrier for AgNPs. The nanohybrid of AgNPs and NSQ ("AgNP/NSQ") in aqueous solution showed remarkable bactericidal effect as well as negligible cytotoxicity and immune response at a concentration of 10 ppm. Poly(carbonate)urethane (PCU) with different hard/soft segment ratios was synthesized and used in the preparation of the nanocomposites, PCU-AgNP/NSQ. Based on TEM observation, AgNP/NSQ was well dispersed in the resulting nanocomposites. The reinforcing effects of AgNP/NSQ in nanocomposites were distinct for PCU with different hard/soft segment ratios. The phase-separated structure of PCU-AgNP/NSQ nanocomposites was investigated by small-angle X-ray scattering (SAXS). PCU-AgNP/NSQ containing 75 ppm of Ag demonstrated superior microbiostatic effect, as well as better biodurability and lower foreign body reaction than the commercial Pellethane 2363-80A.</div></front></TEI><pubmed><MedlineCitation Status="PubMed-not-MEDLINE" Owner="NLM"><PMID Version="1">32260851</PMID><DateRevised><Year>2020</Year><Month>04</Month><Day>08</Day></DateRevised><Article PubModel="Print-Electronic"><Journal><ISSN IssnType="Electronic">2050-7518</ISSN><JournalIssue CitedMedium="Internet"><Volume>1</Volume><Issue>16</Issue><PubDate><Year>2013</Year><Month>Apr</Month><Day>28</Day></PubDate></JournalIssue><Title>Journal of materials chemistry. B</Title><ISOAbbreviation>J Mater Chem B</ISOAbbreviation></Journal><ArticleTitle>Amphiphilic silver-delaminated clay nanohybrids and their composites with polyurethane: physico-chemical and biological evaluations.</ArticleTitle><Pagination><MedlinePgn>2178-2189</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1039/c3tb20113a</ELocationID><Abstract><AbstractText>Silver nanoparticles (AgNPs) exhibit size-dependent bactericidal activity. They are, however, subject to aggregation when added to most hydrophobic polymers. In this study, a surfactant-modified delaminated clay (surfactant-capped nanosilicate platelets, or "NSQ") was employed to be a nanocarrier for AgNPs. The nanohybrid of AgNPs and NSQ ("AgNP/NSQ") in aqueous solution showed remarkable bactericidal effect as well as negligible cytotoxicity and immune response at a concentration of 10 ppm. Poly(carbonate)urethane (PCU) with different hard/soft segment ratios was synthesized and used in the preparation of the nanocomposites, PCU-AgNP/NSQ. Based on TEM observation, AgNP/NSQ was well dispersed in the resulting nanocomposites. The reinforcing effects of AgNP/NSQ in nanocomposites were distinct for PCU with different hard/soft segment ratios. The phase-separated structure of PCU-AgNP/NSQ nanocomposites was investigated by small-angle X-ray scattering (SAXS). PCU-AgNP/NSQ containing 75 ppm of Ag demonstrated superior microbiostatic effect, as well as better biodurability and lower foreign body reaction than the commercial Pellethane 2363-80A.</AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Chi</LastName><ForeName>Ting-Yen</ForeName><Initials>TY</Initials><Suffix></Suffix><AffiliationInfo><Affiliation>Institute of Polymer Science and Engineering, National Taiwan University, Taipei, 10617, Taiwan, R.O.C.. shhsu@ntu.edu.tw.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Yeh</LastName><ForeName>Hsi-Yi</ForeName><Initials>HY</Initials><Suffix></Suffix></Author><Author ValidYN="Y"><LastName>Lin</LastName><ForeName>Jiang-Jen</ForeName><Initials>JJ</Initials><Suffix></Suffix></Author><Author ValidYN="Y"><LastName>Jeng</LastName><ForeName>U-Ser</ForeName><Initials>US</Initials><Suffix></Suffix></Author><Author ValidYN="Y"><LastName>Hsu</LastName><ForeName>Shan-Hui</ForeName><Initials>SH</Initials><Suffix></Suffix></Author></AuthorList><Language>eng</Language><PublicationTypeList><PublicationType UI="D016428">Journal Article</PublicationType></PublicationTypeList><ArticleDate DateType="Electronic"><Year>2013</Year><Month>03</Month><Day>11</Day></ArticleDate></Article><MedlineJournalInfo><Country>England</Country><MedlineTA>J Mater Chem B</MedlineTA><NlmUniqueID>101598493</NlmUniqueID><ISSNLinking>2050-750X</ISSNLinking></MedlineJournalInfo><CitationSubset>IM</CitationSubset></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="entrez"><Year>2020</Year><Month>4</Month><Day>9</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="pubmed"><Year>2013</Year><Month>4</Month><Day>28</Day><Hour>0</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2013</Year><Month>4</Month><Day>28</Day><Hour>0</Hour><Minute>1</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">32260851</ArticleId><ArticleId IdType="doi">10.1039/c3tb20113a</ArticleId></ArticleIdList></PubmedData></pubmed></record>Pour manipuler ce document sous Unix (Dilib)
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