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Aligned multiple-wall carbon nanotub...

Wu, Jing-Ru.

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Aligned multiple-wall carbon nanotubes as biosensors for phenols.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Aligned multiple-wall carbon nanotubes as biosensors for phenols./
作者:	Wu, Jing-Ru.
面頁冊數:	100 p.
附註:	Source: Dissertation Abstracts International, Volume: 66-02, Section: B, page: 0869.
Contained By:	Dissertation Abstracts International66-02B.
標題:	Chemistry, Analytical. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3164043
ISBN:	049698490X

Aligned multiple-wall carbon nanotubes as biosensors for phenols.
Wu, Jing-Ru.

Aligned multiple-wall carbon nanotubes as biosensors for phenols. - 100 p.

Source: Dissertation Abstracts International, Volume: 66-02, Section: B, page: 0869.

Thesis (Ph.D.)--University of Massachusetts Lowell, 2005.

Vertically oriented multiple-walled carbon nanotubes (MWCNTs) aligned on a silicon substrate were covalently bonded with horseradish peroxidase (HRP) and used as biosensors or electrodes. The modified platform was investigated with Scanning Electron Microscopy (SEM), UV-VIS spectrophotometer and Cyclic Voltammetry (CV). The enzyme catalyzed reaction and the subsequent reduction of the enzymatic products by the platform were carefully investigated. The typical SEM micrographs of MWCNT-chip before and after HRP immobilization are obviously different. The colorimetric assay was done by measuring the absorbance of the dye formed from the reaction product of the substrates (phenol) and 4-aminoantipyrine. From the linear response, phenol can be quantitated in the range from 0.5 mM to 8.0 mM. The electrodes exhibited excellent electrochemical activity in aqueous solution, and the linearity range for phenol concentration lied up to 0.6 mM. The resulting modified aligned MWCNTs still exhibited enzymatic activities after storage of 13 days.

ISBN: 049698490XSubjects--Topical Terms:

586156
Chemistry, Analytical.

Aligned multiple-wall carbon nanotubes as biosensors for phenols.
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300 $a 100 p.
500 $a Source: Dissertation Abstracts International, Volume: 66-02, Section: B, page: 0869.
500 $a Supervisor: Kuang-Pang Li.
502 $a Thesis (Ph.D.)--University of Massachusetts Lowell, 2005.
520 $a Vertically oriented multiple-walled carbon nanotubes (MWCNTs) aligned on a silicon substrate were covalently bonded with horseradish peroxidase (HRP) and used as biosensors or electrodes. The modified platform was investigated with Scanning Electron Microscopy (SEM), UV-VIS spectrophotometer and Cyclic Voltammetry (CV). The enzyme catalyzed reaction and the subsequent reduction of the enzymatic products by the platform were carefully investigated. The typical SEM micrographs of MWCNT-chip before and after HRP immobilization are obviously different. The colorimetric assay was done by measuring the absorbance of the dye formed from the reaction product of the substrates (phenol) and 4-aminoantipyrine. From the linear response, phenol can be quantitated in the range from 0.5 mM to 8.0 mM. The electrodes exhibited excellent electrochemical activity in aqueous solution, and the linearity range for phenol concentration lied up to 0.6 mM. The resulting modified aligned MWCNTs still exhibited enzymatic activities after storage of 13 days.
590 $a School code: 0111.
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