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Protein Dynamics in Living Cells

Protein Dynamics in Living Cells

Different fluorescence-based techniques are used to study the protein dynamics in living cells. These techniques include FRAP, FRET, and PET.
Fluorescent recovery after photobleaching (FRAP) is a fluorescent-protein-based detection technique used to quantify protein movement rates within the cell. This method exposes a small portion of the cell to an intense laser beam. The laser beam causes permanent photobleaching of the fluorophore-tagged proteins in the exposed region. As the bleached...

Immunofluorescence Microscopy

Immunofluorescence Microscopy

A fluorescence microscope uses fluorescent chromophores called fluorochromes, which can absorb energy from a light source and then emit this energy as visible light. Fluorochromes include naturally fluorescent substances (such as chlorophylls) and fluorescent stains that are added to the specimen to create contrast. Dyes such as Texas red and FITC are examples of fluorochromes. Other examples include the nucleic acid dyes 4’,6’-diamidino-2-phenylindole (DAPI), and acridine orange.
The...

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Internalization and Observation of Fluorescent Biomolecules in Living Microorganisms via Electroporation

Internalization and Observation of Fluorescent Biomolecules in Living Microorganisms via Electroporation

Published on: February 8, 2015

Fluorescence bioimaging with conjugated polyelectrolytes.

Guangxue Feng¹, Dan Ding, Bin Liu

¹Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore 117576.

|September 12, 2012

Summary

This summary is machine-generated.

Fluorescent conjugated polyelectrolytes (CPEs) show promise in bioimaging due to their optical properties and low toxicity. This review covers their applications in cell imaging, drug tracking, and gene delivery, highlighting future potential.

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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

Area of Science:

Polymer Chemistry
Biomedical Imaging
Materials Science

Background:

Fluorescent conjugated polyelectrolytes (CPEs) are advanced materials with unique optical and chemical properties.
Their versatility makes them suitable for various biological applications.
Recent advancements have expanded their use in sophisticated bioimaging techniques.

Purpose of the Study:

To review recent developments in fluorescent conjugated polyelectrolytes (CPEs) for bioimaging applications.
To discuss the synthesis and properties of different CPE derivatives, including linear, hyperbranched, and POSS-based structures.
To explore the diverse applications of CPEs in biological and medical research.

Main Methods:

Literature review of recent research on fluorescent conjugated polyelectrolytes (CPEs).
Analysis of CPE properties such as optical characteristics, photostability, cytotoxicity, and bioconjugation ease.
Categorization of CPE applications in protein and cell imaging, drug tracking, and gene delivery.

Main Results:

CPEs exhibit excellent optical properties, high photostability, and low cytotoxicity.
Various CPE structures (linear, hyperbranched, POSS-based) demonstrate significant potential in bioimaging.
Applications include in vitro/in vivo imaging, drug tracking, gene delivery, and even antibacterial/anticancer functions.

Conclusions:

CPEs are highly versatile materials for advanced bioimaging.
Their tunable properties and ease of bioconjugation facilitate diverse applications.
Future research directions point towards expanded roles in diagnostics and therapeutics.