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Volumn 25, Issue 4, 2009, Pages 2107-2113

Stepwise functionalization of ZnO nanotips with DNA

Author keywords

[No Author keywords available]

Indexed keywords

ALKYL CHAINS; BIFUNCTIONAL; BULK ACOUSTIC WAVES; CARBOXYLIC GROUPS; COOH GROUPS; END GROUPS; FLUORESCENCE EMISSION SPECTROSCOPIES; FUNCTIONALIZATION; FUNCTIONALIZED; HEXADECANOIC ACIDS; LONG CHAIN CARBOXYLIC ACIDS; MOCVD; MODIFIED DNAS; PYRIDYL DISULFIDES; SEQUENTIAL REACTIONS; SH-SSDNA; SINGLE STRANDED DNAS (SSDNA); SUCCINIMIDE; SURFACE FUNCTIONALIZATION; SURFACE-MODIFIED; THIOL GROUPS; ZNO; ZNO NANOTIPS;

EID: 63249091690     PISSN: 07437463     EISSN: None     Source Type: Journal    
DOI: 10.1021/la8026946     Document Type: Article
Times cited : (53)

References (43)
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    • Phosphate buffer saline (PBS) was selected over other buffers commonly used in this kind of step that contain COOH or other functional groups, which can displace the linker layer by binding to the ZnO nanotip films surface. Indeed, we observed competitive displacement of the linker layers in the presence of EDTA (ethylene diamine tetraacetic acid) and HEPES (4-(2-hydroxyethyl)-1-piperazineethanesulfonic acid, which are buffers commonly used in these reactions. An additional advantage of PBS is that it is isotonic and non-toxic to cells, properties that could be useful for future biosensing applications. In route B, buffers containing primary amines, such as TRIS (tris(hydroxymethyl)aminomethane hydrochloride, or glycine buffers were avoided, because they contain amino groups that could compete with the amino group present on the ssDNA
    • Phosphate buffer saline (PBS) was selected over other buffers commonly used in this kind of step that contain COOH or other functional groups, which can displace the linker layer by binding to the ZnO nanotip films surface. Indeed, we observed competitive displacement of the linker layers in the presence of EDTA (ethylene diamine tetraacetic acid) and HEPES (4-(2-hydroxyethyl)-1-piperazineethanesulfonic acid), which are buffers commonly used in these reactions. An additional advantage of PBS is that it is isotonic and non-toxic to cells, properties that could be useful for future biosensing applications. In route B, buffers containing primary amines, such as TRIS (tris(hydroxymethyl)aminomethane hydrochloride), or glycine buffers were avoided, because they contain amino groups that could compete with the amino group present on the ssDNA.
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    • 2 nanoparticles, with ultrafast injection dynamics; see, for instance: Ra-makrishna, G.; Das, A.; Gosh, H. N. Langmuir 2004, 20, 1430.
    • 2 nanoparticles, with ultrafast injection dynamics; see, for instance: Ra-makrishna, G.; Das, A.; Gosh, H. N. Langmuir 2004, 20, 1430.
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    • It has also been reported that fluorescein-based model compounds sensitize ZnO/SnO cells effectively: Hattori, S, Hasobe, T, Ohkubo, K, Urano, Y, Umezawa, N, Nagano, T, Wada, Y, Yanagida, S, Fukuzumi, S. J. Phys. Chem. B 2004, 108, 15200 Our attempt to bind fluorescein to the ZnO nanotip films directly resulted in some etching of the materials and uncertainty about the binding, and for this reason we were not able to verify this observation in a quantitative manner
    • It has also been reported that fluorescein-based model compounds sensitize ZnO/SnO cells effectively: Hattori, S.; Hasobe, T.; Ohkubo, K.; Urano, Y.; Umezawa, N.; Nagano, T.; Wada, Y.; Yanagida, S.; Fukuzumi, S. J. Phys. Chem. B 2004, 108, 15200 Our attempt to bind fluorescein to the ZnO nanotip films directly resulted in some etching of the materials and uncertainty about the binding, and for this reason we were not able to verify this observation in a quantitative manner. .
  • 39
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    • The small peak in the ZnO background spectrum in Figure 7 is most probably due to light scattering and is occasionally observed in clean films depending on how the data are collected.
    • The small peak in the ZnO background spectrum in Figure 7 is most probably due to light scattering and is occasionally observed in clean films depending on how the data are collected.
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* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.