Real-time Monitoring and Detection of Primer Generation-Rolling Circle Amplification of DNA Using an Ethidium Ion-selective Electrode
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- SEICHI Ayaka
- Department of Applied Chemistry, Graduate School of Science and Engineering, Keio University
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- KOZUKA Nanami
- Department of Applied Chemistry, Graduate School of Science and Engineering, Keio University
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- KASHIMA Yuko
- Department of Applied Chemistry, Graduate School of Science and Engineering, Keio University
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- TABATA Miyuki
- Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University
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- GODA Tatsuro
- Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University
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- MATSUMOTO Akira
- Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University
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- IWASAWA Naoko
- Department of Applied Chemistry, Graduate School of Science and Engineering, Keio University
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- CITTERIO Daniel
- Department of Applied Chemistry, Graduate School of Science and Engineering, Keio University
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- MIYAHARA Yuji
- Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University
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- SUZUKI Koji
- Department of Applied Chemistry, Graduate School of Science and Engineering, Keio University
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抄録
An electrochemical detection system for an isothermal DNA amplification method using an ion-selective electrode (ISE) was developed as a low-cost, simple and real-time monitoring system. The system is based on potentiometry using an ethidium ion (Et+) selective electrode that relies on monitoring DNA amplification by measuring potential changes in the reaction solution containing ethidium bromide (EtBr) as an intercalator to DNA. With progressing primer generation-rolling circle amplification (PG-RCA) under isothermal condition at 37°C, EtBr is bound to the newly formed DNA, resulting in a lowered free EtBr concentration in the sample solution. In this case, the Et+ ISE potential allows real-time monitoring of the PG-RCA reaction in the range of 10 nM – 1 μM initial target DNA.
収録刊行物
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- Analytical Sciences
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Analytical Sciences 32 (5), 505-510, 2016
社団法人 日本分析化学会
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詳細情報 詳細情報について
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- CRID
- 1390282679236874496
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- NII論文ID
- 130005150940
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- NII書誌ID
- AA10500785
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- ISSN
- 13482246
- 09106340
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- NDL書誌ID
- 027283569
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- PubMed
- 27169648
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
- Crossref
- PubMed
- CiNii Articles
- KAKEN
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- 抄録ライセンスフラグ
- 使用不可