Laser microbeam techniques are presented, which permit the introduction of molecules or small particles into living cells. Possible mechanisms - including photochemical, photothermal and opto-mechanical interactions (ablations) - are induced by continuous wave (cw) or pulsed lasers of different wavelength, power, and mode of operation. Laser-assisted optoporation permits the uptake of fluorescent dyes as well as DNA plasmids for cell transfection, and, in addition to its broad application to cultivated cells, may have some clinical potential.
Download full-text PDF |
Source |
---|---|
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6583334 | PMC |
http://dx.doi.org/10.1364/BOE.10.002883 | DOI Listing |
ACS Appl Mater Interfaces
January 2025
Department of Engineering Design, Indian Institute of Technology Madras, Chennai 600036, India.
This study presents a novel optoporation technique using a titanium-coated TiO microstructure (TMS) device activated by an infrared diode laser for highly efficient intracellular delivery. The TMS device, fabricated with 120 nm titanium coating on a titanium dioxide (TiO) microstructure containing microneedles (height ∼2 μm and width ∼4.5 μm), demonstrates enhanced biocompatibility and thermal conductivity compared to the conventional TiO microstructure (MS).
View Article and Find Full Text PDFInt J Mol Sci
April 2022
Institute of Applied Research, Aalen University, 73430 Aalen, Germany.
Due to their unique properties-coherent radiation, diffraction limited focusing, low spectral bandwidth and in many cases short light pulses-lasers play an increasing role in live cell microscopy. Lasers are indispensable tools in 3D microscopy, e.g.
View Article and Find Full Text PDFAnalyst
August 2021
Department of Engineering Design, Indian Institute of Technology Madras, Chennai 600036, India.
Targeted intracellular delivery of biomolecules and therapeutic cargo enables the controlled manipulation of cellular processes. Laser-based optoporation has emerged as a versatile, non-invasive technique that employs light-based transient physical disruption of the cell membrane and achieves high transfection efficiency with low cell damage. Testing of the delivery efficiency of optoporation-based techniques has been conducted on single cells in monolayers, but its applicability in three-dimensional (3D) cell clusters/spheroids has not been explored.
View Article and Find Full Text PDFJ Biophotonics
January 2021
School of Dentistry, Oral Health Centre, The University of Queensland, Brisbane, Australia.
Gene therapy has become an effective treatment modality for some conditions. Laser light may augment or enhance gene therapy through photomechanical, photothermal, and photochemical. This review examined the evidence base for laser therapy to enhance nucleic acid transfection in mammalian cells.
View Article and Find Full Text PDFBiomed Opt Express
June 2019
Aalen University, Institute of Applied Research, Beethovenstraße. 1, D-73430 Aalen, Germany.
Laser microbeam techniques are presented, which permit the introduction of molecules or small particles into living cells. Possible mechanisms - including photochemical, photothermal and opto-mechanical interactions (ablations) - are induced by continuous wave (cw) or pulsed lasers of different wavelength, power, and mode of operation. Laser-assisted optoporation permits the uptake of fluorescent dyes as well as DNA plasmids for cell transfection, and, in addition to its broad application to cultivated cells, may have some clinical potential.
View Article and Find Full Text PDFEnter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!