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Native Cell Membrane Nanoparticles System for Membrane Protein-Protein Interaction Analysis
Published on: July 16, 2020
Optically absorbing nanoparticle mediated cell membrane permeabilization.
Kiran Bhattacharyya1, Smit Mehta, John Viator
1Department of Biological Engineering, University of Missouri, Columbia, Missouri 65201, USA.
Optics Letters
|November 2, 2012
Summary
Antibody-conjugated gold nanospheres enhance cell membrane permeability for gene and drug delivery. This method achieves high permeabilization with minimal cell death, offering a more efficient approach.
Area of Science:
- Biotechnology
- Nanomedicine
- Cell Biology
Background:
- Eukaryotic cell membranes impede delivery of polar and large nonpolar molecules.
- Efficient cell membrane permeabilization is crucial for gene and drug delivery systems.
Purpose of the Study:
- To develop an efficient method for increasing cell membrane permeability.
- To investigate the use of antibody-conjugated gold nanospheres and laser irradiation for targeted cell permeabilization.
Main Methods:
- Antibody-conjugated gold nanospheres were targeted to T47D breast cancer cells.
- Cells were irradiated with 5 ns pulsed, 532 nm laser light.
- Membrane permeabilization and cell viability were assessed.
Main Results:
- High levels of cell membrane permeabilization (up to 90%) were achieved.
- Cell death was minimal (less than 6%).
- Effective permeabilization was observed at significantly lower radiant exposures compared to existing methods.
Conclusions:
- Antibody-conjugated gold nanospheres combined with laser irradiation provide an effective and low-toxicity method for cell membrane permeabilization.
- This technique shows promise for advanced gene and drug delivery applications.
- The study demonstrates a significant improvement in efficiency and safety for cell manipulation.
