Study on nanoparticles sizing based on fluorescence polarization (2nd report) - A novel nanopartìcle sizing method based on rotational diffusion coefficient for fluorescent DNA probe - A n

Terutake Hayashi, Yuki Ishizaki, Masaki Michihata, Yasuhiro Takaya, Shin Ichi Tanaka

Research output: Contribution to journalArticle

Abstract

The nanopartìcle is key materials in the area of nanotechnology, and there is a strong demand to measure the particle size accurately and easily. We proposed a novel nanoparticle sizing method based on fluorescence polarization analysis, and constructed the rotational diffusion coefficient measurement system using fluorescent DNA probe (fl-DNA). Nano particle sizing is achieved by measuring the rotational diffusion coefficient of fl-DNA, which is labeled to nanoparticle. In this report, we investigate the relation between the rotational diffusion coefficient of fl-DNA and the size of the nanoparticles standard. The rotational diffusion coefficients of gold nanoparticles of diameters from 6 nm to 20 nm were measured using the proposed method.

Original languageEnglish
Pages (from-to)956-960
Number of pages5
JournalSeimitsu Kogaku Kaishi/Journal of the Japan Society for Precision Engineering
Volume80
Issue number10
DOIs
Publication statusPublished - Oct 1 2014

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DNA
Fluorescence
Polarization
Nanoparticles
Nanotechnology
Gold
Particle size

All Science Journal Classification (ASJC) codes

  • Mechanical Engineering

Cite this

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abstract = "The nanopart{\`i}cle is key materials in the area of nanotechnology, and there is a strong demand to measure the particle size accurately and easily. We proposed a novel nanoparticle sizing method based on fluorescence polarization analysis, and constructed the rotational diffusion coefficient measurement system using fluorescent DNA probe (fl-DNA). Nano particle sizing is achieved by measuring the rotational diffusion coefficient of fl-DNA, which is labeled to nanoparticle. In this report, we investigate the relation between the rotational diffusion coefficient of fl-DNA and the size of the nanoparticles standard. The rotational diffusion coefficients of gold nanoparticles of diameters from 6 nm to 20 nm were measured using the proposed method.",
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AU - Tanaka, Shin Ichi

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