What question did this study set out to answer?

To develop a homogeneous fluorescent biosensor platform based on noncovalent assemblies of single-walled carbon nanotubes and single-stranded DNA for detecting biomolecular interactions.

September 4, 2008Analytical Chemistry

Noncovalent Assembly of Carbon Nanotubes and Single-Stranded DNA: An Effective Sensing Platform for Probing Biomolecular Interactions

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Authors

RYRonghua YangHunan Normal University ZTZhiwen TangUniversity of Electronic Science and Technology of China JYJilin YanSoochow University

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Implication

Experimental study demonstrates fluorescent biosensing via carbon nanotube and single-stranded DNA complexes, indicating versatile detection for DNA hybridization and protein interactions.

Key Points

To develop a homogeneous fluorescent biosensor platform based on noncovalent assemblies of single-walled carbon nanotubes and single-stranded DNA for detecting biomolecular interactions.
Assembled single-walled carbon nanotubes (SWNTs) with fluorophore-labeled DNA oligonucleotides to induce proximity-based fluorescence quenching.
Evaluated target-induced fluorescence restoration through competitive binding assays involving complementary DNA strands and target proteins.
Characterized binding mechanics and signaling dynamics using fluorescence intensity and fluorescence anisotropy measurements.
SWNTs effectively quenched the emission of dye-labeled DNA oligonucleotides in the absence of analytical targets.
Target DNA hybridization or aptamer-protein binding competitively displaced oligonucleotides from SWNT surfaces, restoring fluorescence intensity proportional to target concentration.
Fluorescence anisotropy measurements validated the conformational changes and release mechanism across both nucleic acid and protein target models.

Cite This Study

Yang et al. (2008) studied this question.

synapsesocial.com/papers/69df6da558b92af24d7a185e https://doi.org/10.1021/ac801118p

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Implication

Experimental study demonstrates fluorescent biosensing via carbon nanotube and single-stranded DNA complexes, indicating versatile detection for DNA hybridization and protein interactions.

Noncovalent Assembly of Carbon Nanotubes and Single-Stranded DNA: An Effective Sensing Platform for Probing Biomolecular Interactions

Discussion

Member takes

Implication

Key Points

Cite This Study

Noncovalent Assembly of Carbon Nanotubes and Single-Stranded DNA: An Effective Sensing Platform for Probing Biomolecular Interactions

Discussion

Member takes

Implication

Key Points

Cite This Study

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