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2022 Fiscal Year Final Research Report

DNA immobilized by photoionization of malachite green derivative and mechanism of its immobilization

Research Project

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Project/Area Number 18K05068
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 32020:Functional solid state chemistry-related
Research InstitutionNara National College of Technology

Principal Investigator

Uda Ryoko  奈良工業高等専門学校, 物質化学工学科, 教授 (90321463)

Project Period (FY) 2018-04-01 – 2023-03-31
KeywordsDNA / 吸着 / 光 / マラカイトグリーン / 複合膜
Outline of Final Research Achievements

The purpose of this work is DNA adsorption in a simple and cost-effective manner by using a malachite green derivative, which can be photoionized to afford a cationic moiety for interaction with DNA. We have prepared a polyvinyl chloride film containing a malachite green derivative and carried out photoinduced oligonucleotide adsorption on a film at the micrometer scale. We have investigated the mechanism of the DNA adsorption by using spectroscopic analysis and found that the DNA adsorption depended on the length and sequence of DNA.

Free Research Field

機能性有機化合物

Academic Significance and Societal Importance of the Research Achievements

DNAの微小領域への固定化は、マイクロアレイや電界効果トランジスタ、ラボオンチップなどに展開可能な技術である。本研究は、シンプルで柔軟性の高いDNA固定化法の構築を目指して、光でカチオンとなるユニークな性質を持つマラカイトグリーン誘導体を用いポリ塩化ビニルとの複合膜を作製した。光照射部分のみDNAを複合膜に結合させることに成功し、その結合のメカニズムを明らかにした。本研究のDNA光固定化法を用いることで、バイオチップなどの迅速な作製・研究室レベルでの自由度の高い展開が可能と考えられる。

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Published: 2024-01-30  

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