Fundamental properties of oligo double-stranded DNA/single-walled carbon nanotube nanobiohybrids.
Identifieur interne : 001F40 ( PubMed/Curation ); précédent : 001F39; suivant : 001F41Fundamental properties of oligo double-stranded DNA/single-walled carbon nanotube nanobiohybrids.
Auteurs : Yuki Yamamoto [Japon] ; Tsuyohiko Fujigaya ; Yasuro Niidome ; Naotoshi NakashimaSource :
- Nanoscale [ 2040-3372 ] ; 2010.
Descripteurs français
- KwdFr :
- MESH :
English descriptors
- KwdEn :
- MESH :
- chemical , chemistry : DNA, DNA, Single-Stranded, Nanotubes, Carbon, Oligodeoxyribonucleotides.
- Chromatography, High Pressure Liquid, Microscopy, Atomic Force.
Abstract
Fundamental properties of single-walled carbon nanotubes (SWNTs) that are individually dissolved using twenty base paired-double-stranded (ds) DNA, (dA)(20)/(dT)(20), as well as single-stranded (ss) twenty-mers of oligo DNAs, adenine (dA)(20) and thymine (dT)(20), for comparison are described. In this study, unbound oligo DNAs are fully removed from the hybrid aqueous solutions using size-exclusion chromatography (SEC)-HPLC. Each SEC chromatogram of the solutions shows two separated peaks; one is the free oligo DNAs and the others are the oligo DNA/SWNT hybrids. The earlier eluent fractions (the hybrids) are separated into four size-separated fractions, and then their stability is evaluated by the re-injection of the fractions. The chromatograms of the earlier eluent fractions are almost identical to those of the original ones even after storage for one month, indicating the high stability of the dsDNA/SWNTs and ssDNA/SWNTs hybrids in water. The results free us from considering the desorption of the bound-oligo dsDNA or oligo ssDNA from their nanohybrids with the SWNTs, which is of significant advantage to the utilization of oligo DNA/SWNT nanobiohybrids in wide areas of science. We also investigated the near-IR absorption and photoluminescence (PL) spectral behaviors of the fractionated oligo DNA/SWNTs hybrids not containing corresponding free oligo DNA.
DOI: 10.1039/c0nr00145g
PubMed: 20820708
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In this study, unbound oligo DNAs are fully removed from the hybrid aqueous solutions using size-exclusion chromatography (SEC)-HPLC. Each SEC chromatogram of the solutions shows two separated peaks; one is the free oligo DNAs and the others are the oligo DNA/SWNT hybrids. The earlier eluent fractions (the hybrids) are separated into four size-separated fractions, and then their stability is evaluated by the re-injection of the fractions. The chromatograms of the earlier eluent fractions are almost identical to those of the original ones even after storage for one month, indicating the high stability of the dsDNA/SWNTs and ssDNA/SWNTs hybrids in water. The results free us from considering the desorption of the bound-oligo dsDNA or oligo ssDNA from their nanohybrids with the SWNTs, which is of significant advantage to the utilization of oligo DNA/SWNT nanobiohybrids in wide areas of science. We also investigated the near-IR absorption and photoluminescence (PL) spectral behaviors of the fractionated oligo DNA/SWNTs hybrids not containing corresponding free oligo DNA.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">20820708</PMID><DateCompleted><Year>2010</Year><Month>12</Month><Day>22</Day></DateCompleted><DateRevised><Year>2010</Year><Month>09</Month><Day>07</Day></DateRevised><Article PubModel="Print-Electronic"><Journal><ISSN IssnType="Electronic">2040-3372</ISSN><JournalIssue CitedMedium="Internet"><Volume>2</Volume><Issue>9</Issue><PubDate><Year>2010</Year><Month>Sep</Month></PubDate></JournalIssue><Title>Nanoscale</Title><ISOAbbreviation>Nanoscale</ISOAbbreviation></Journal><ArticleTitle>Fundamental properties of oligo double-stranded DNA/single-walled carbon nanotube nanobiohybrids.</ArticleTitle><Pagination><MedlinePgn>1767-72</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1039/c0nr00145g</ELocationID><Abstract><AbstractText>Fundamental properties of single-walled carbon nanotubes (SWNTs) that are individually dissolved using twenty base paired-double-stranded (ds) DNA, (dA)(20)/(dT)(20), as well as single-stranded (ss) twenty-mers of oligo DNAs, adenine (dA)(20) and thymine (dT)(20), for comparison are described. In this study, unbound oligo DNAs are fully removed from the hybrid aqueous solutions using size-exclusion chromatography (SEC)-HPLC. Each SEC chromatogram of the solutions shows two separated peaks; one is the free oligo DNAs and the others are the oligo DNA/SWNT hybrids. The earlier eluent fractions (the hybrids) are separated into four size-separated fractions, and then their stability is evaluated by the re-injection of the fractions. The chromatograms of the earlier eluent fractions are almost identical to those of the original ones even after storage for one month, indicating the high stability of the dsDNA/SWNTs and ssDNA/SWNTs hybrids in water. The results free us from considering the desorption of the bound-oligo dsDNA or oligo ssDNA from their nanohybrids with the SWNTs, which is of significant advantage to the utilization of oligo DNA/SWNT nanobiohybrids in wide areas of science. We also investigated the near-IR absorption and photoluminescence (PL) spectral behaviors of the fractionated oligo DNA/SWNTs hybrids not containing corresponding free oligo DNA.</AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Yamamoto</LastName><ForeName>Yuki</ForeName><Initials>Y</Initials><AffiliationInfo><Affiliation>Department of Applied Chemistry, Graduate School of Engineering, Kyushu University, Motooka, Fukuoka, Japan.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Fujigaya</LastName><ForeName>Tsuyohiko</ForeName><Initials>T</Initials></Author><Author ValidYN="Y"><LastName>Niidome</LastName><ForeName>Yasuro</ForeName><Initials>Y</Initials></Author><Author ValidYN="Y"><LastName>Nakashima</LastName><ForeName>Naotoshi</ForeName><Initials>N</Initials></Author></AuthorList><Language>eng</Language><PublicationTypeList><PublicationType UI="D016428">Journal Article</PublicationType><PublicationType UI="D013485">Research Support, Non-U.S. Gov't</PublicationType></PublicationTypeList><ArticleDate DateType="Electronic"><Year>2010</Year><Month>07</Month><Day>08</Day></ArticleDate></Article><MedlineJournalInfo><Country>England</Country><MedlineTA>Nanoscale</MedlineTA><NlmUniqueID>101525249</NlmUniqueID><ISSNLinking>2040-3364</ISSNLinking></MedlineJournalInfo><ChemicalList><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D004277">DNA, Single-Stranded</NameOfSubstance></Chemical><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D037742">Nanotubes, Carbon</NameOfSubstance></Chemical><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D009838">Oligodeoxyribonucleotides</NameOfSubstance></Chemical><Chemical><RegistryNumber>9007-49-2</RegistryNumber><NameOfSubstance UI="D004247">DNA</NameOfSubstance></Chemical></ChemicalList><CitationSubset>IM</CitationSubset><MeshHeadingList><MeshHeading><DescriptorName UI="D002851" MajorTopicYN="N">Chromatography, High Pressure Liquid</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D004247" MajorTopicYN="N">DNA</DescriptorName><QualifierName UI="Q000737" MajorTopicYN="Y">chemistry</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D004277" MajorTopicYN="N">DNA, Single-Stranded</DescriptorName><QualifierName UI="Q000737" MajorTopicYN="Y">chemistry</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D018625" MajorTopicYN="N">Microscopy, Atomic Force</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D037742" MajorTopicYN="N">Nanotubes, Carbon</DescriptorName><QualifierName UI="Q000737" MajorTopicYN="Y">chemistry</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D009838" MajorTopicYN="N">Oligodeoxyribonucleotides</DescriptorName><QualifierName UI="Q000737" MajorTopicYN="Y">chemistry</QualifierName></MeshHeading></MeshHeadingList></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="entrez"><Year>2010</Year><Month>9</Month><Day>8</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="pubmed"><Year>2010</Year><Month>9</Month><Day>8</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2010</Year><Month>12</Month><Day>24</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">20820708</ArticleId><ArticleId IdType="doi">10.1039/c0nr00145g</ArticleId></ArticleIdList></PubmedData></pubmed></record>Pour manipuler ce document sous Unix (Dilib)
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