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Optical Control of Living Cells Electrical Activity by Conjugated Polymers

Optical Control of Living Cells Electrical Activity by Conjugated Polymers

Published on: January 28, 2016

Oligonucleotide optical switches for intracellular sensing.

A Giannetti¹, S Tombelli, F Baldini

¹Istituto di Fisica Applicata Nello Carrara, Consiglio Nazionale delle Ricerche, Sesto Fiorentino, Italy.

Analytical and Bioanalytical Chemistry

|June 25, 2013

Summary

Oligonucleotide optical switches, enhanced by nanotechnology, offer sensitive cellular imaging and mRNA detection. Research focuses on engineering these nanosensors and novel methods for delivering them into living cells for advanced biological monitoring.

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A Polyaniline-based Sensor of Nucleic Acids

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Published on: November 1, 2016

Area of Science:

Biotechnology and Nanomedicine
Molecular Biology and Genetics

Background:

Fluorescence imaging combined with nanotechnology enables advanced tools for cellular processes.
Nanoparticle-coupled fluorescent probes facilitate sensitive and specific intracellular monitoring.

Purpose of the Study:

To review current research on oligonucleotide optical switches for intracellular sensing.
To focus on engineering methods and internalization techniques for these nanosensors.

Main Methods:

Engineering of oligonucleotide optical switches (e.g., molecular beacons, aptamer beacons).
Modification of oligonucleotides (e.g., LNA, PNA) to improve stability and signal.
Development of novel internalization techniques using nano-objects.

Main Results:

Oligonucleotide optical switches demonstrate potential for detecting mRNA, proteins, and small molecules.
Engineered switches exhibit enhanced stability and reduced background signals.
Innovative delivery methods improve cellular internalization efficiency.

Conclusions:

Oligonucleotide optical switches are powerful nanosensors for intracellular applications.
Engineering and advanced delivery are key to optimizing their performance.
This technology holds significant promise for biological research and diagnostics.