A study of the practicability of using disposable electrochemical biosensor to detect α-methylacyl-CoA racemase
碩士 === 國立中興大學 === 材料科學與工程學系所 === 99 === α-methylacyl-CoA racemase (AMACR) was recently found the newest biomarker for prostate cancer. The purpose of this study is to develop an AMACR biosensor on the basis of the iridium nano-particle based single-use, dioposable biosensor made in our lab. Using pr...
Main Authors: | , |
---|---|
Other Authors: | |
Format: | Others |
Language: | en_US |
Published: |
2011
|
Online Access: | http://ndltd.ncl.edu.tw/handle/jctm2y |
id |
ndltd-TW-099NCHU5159059 |
---|---|
record_format |
oai_dc |
spelling |
ndltd-TW-099NCHU51590592019-05-15T20:42:09Z http://ndltd.ncl.edu.tw/handle/jctm2y A study of the practicability of using disposable electrochemical biosensor to detect α-methylacyl-CoA racemase 使用可拋棄式電化學生物感測器偵測α-甲醯基輔酶A消旋酶的可行性之研究 Kai-Lun Cheng 鄭凱倫 碩士 國立中興大學 材料科學與工程學系所 99 α-methylacyl-CoA racemase (AMACR) was recently found the newest biomarker for prostate cancer. The purpose of this study is to develop an AMACR biosensor on the basis of the iridium nano-particle based single-use, dioposable biosensor made in our lab. Using pristanic acids, a chemical naturally has stereoisomers, mixed with CoA (Coenzyme A), Mg2+, ATP (Adenosine 5’-triphosphate,ATP) to generate the substrate, pristanoyl-CoA. AMACR could transfer (2R)-isomer to (2S)-isomer, which is further react with peroxisomal acyl-coenzyme A oxidase 3 (Acox3) and produce the end product H2O2. In a fixed concentration of pristanic acids and fixed reaction time with enzymes could quantitative the concentration of AMACR. The H2O2 is monitored by amperometric tests at an operating potential of +0.45V versus Ag/AgCl reference electrode. The result comes out that the best incubation time for the transformation from pristanic acid to pristanoyl-CoA is three days. Electrochemical measurement shows this disposable biosensor is capable of detecting the oxidizing current of H2O2, and has good linear relationship between response current and AMACR concentration in phosphate buffer solution. The best pH value for operating this sensor is pH7.0. 薛富盛 2011 學位論文 ; thesis 44 en_US |
collection |
NDLTD |
language |
en_US |
format |
Others
|
sources |
NDLTD |
description |
碩士 === 國立中興大學 === 材料科學與工程學系所 === 99 === α-methylacyl-CoA racemase (AMACR) was recently found the newest biomarker for prostate cancer. The purpose of this study is to develop an AMACR biosensor on the basis of the iridium nano-particle based single-use, dioposable biosensor made in our lab. Using pristanic acids, a chemical naturally has stereoisomers, mixed with CoA (Coenzyme A), Mg2+, ATP (Adenosine 5’-triphosphate,ATP) to generate the substrate, pristanoyl-CoA. AMACR could transfer (2R)-isomer to (2S)-isomer, which is further react with peroxisomal acyl-coenzyme A oxidase 3 (Acox3) and produce the end product H2O2. In a fixed concentration of pristanic acids and fixed reaction time with enzymes could quantitative the concentration of AMACR. The H2O2 is monitored by amperometric tests at an operating potential of +0.45V versus Ag/AgCl reference electrode. The result comes out that the best incubation time for the transformation from pristanic acid to pristanoyl-CoA is three days. Electrochemical measurement shows this disposable biosensor is capable of detecting the oxidizing current of H2O2, and has good linear relationship between response current and AMACR concentration in phosphate buffer solution. The best pH value for operating this sensor is pH7.0.
|
author2 |
薛富盛 |
author_facet |
薛富盛 Kai-Lun Cheng 鄭凱倫 |
author |
Kai-Lun Cheng 鄭凱倫 |
spellingShingle |
Kai-Lun Cheng 鄭凱倫 A study of the practicability of using disposable electrochemical biosensor to detect α-methylacyl-CoA racemase |
author_sort |
Kai-Lun Cheng |
title |
A study of the practicability of using disposable electrochemical biosensor to detect α-methylacyl-CoA racemase |
title_short |
A study of the practicability of using disposable electrochemical biosensor to detect α-methylacyl-CoA racemase |
title_full |
A study of the practicability of using disposable electrochemical biosensor to detect α-methylacyl-CoA racemase |
title_fullStr |
A study of the practicability of using disposable electrochemical biosensor to detect α-methylacyl-CoA racemase |
title_full_unstemmed |
A study of the practicability of using disposable electrochemical biosensor to detect α-methylacyl-CoA racemase |
title_sort |
study of the practicability of using disposable electrochemical biosensor to detect α-methylacyl-coa racemase |
publishDate |
2011 |
url |
http://ndltd.ncl.edu.tw/handle/jctm2y |
work_keys_str_mv |
AT kailuncheng astudyofthepracticabilityofusingdisposableelectrochemicalbiosensortodetectamethylacylcoaracemase AT zhèngkǎilún astudyofthepracticabilityofusingdisposableelectrochemicalbiosensortodetectamethylacylcoaracemase AT kailuncheng shǐyòngkěpāoqìshìdiànhuàxuéshēngwùgǎncèqìzhēncèajiǎxījīfǔméiaxiāoxuánméidekěxíngxìngzhīyánjiū AT zhèngkǎilún shǐyòngkěpāoqìshìdiànhuàxuéshēngwùgǎncèqìzhēncèajiǎxījīfǔméiaxiāoxuánméidekěxíngxìngzhīyánjiū AT kailuncheng studyofthepracticabilityofusingdisposableelectrochemicalbiosensortodetectamethylacylcoaracemase AT zhèngkǎilún studyofthepracticabilityofusingdisposableelectrochemicalbiosensortodetectamethylacylcoaracemase |
_version_ |
1719102700614844416 |