Results 21 to 30 of about 72,589 (312)
Photothermal Nanomaterial-Mediated Photoporation
Accounts of Chemical Research, 2023 Delivering biological effector molecules in cultured cells is of fundamental importance to any study or application in which the modulation of gene expression is required. Examples range from generating engineered cell lines for studying gene function to the engineering of cells for cell-based therapies such as CAR-T cells and gene-corrected stem cells
Ranhua Xiong +5 more
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Performance of a photothermal detector with turbid liquids [PDF]
, 2005 A closed-cell photothermal detector for aqueous analytes has been evaluated at 254nm and 678nm. The detector used a water meniscus as a pressure sensor, whose periodic deflection was measured using a low finesse optical fibre Fabry-Perot interferometer.
Johnson, Mark +2 more
core +1 more source
Frontiers in Bioengineering and Biotechnology, 2022 Conjugated polymers are increasingly exploited for biomedical applications. In this work, we explored the optical characteristics of conjugated polymers of variable chemical structures at multiple levels relevant to biological interfacing, from ...
Paul L. C. Feyen +15 more
doaj +1 more source
Photothermal strain imaging [PDF]
Journal of Biomedical Optics, 2017 Vulnerable plaques are the major cause of cardiovascular disease, but they are difficult to detect with conventional intravascular imaging techniques. Techniques are needed to identify plaque vulnerability based on the presence of lipids in plaque. Thermal strain imaging (TSI) is an imaging technique based on ultrasound (US) wave propagation speed ...
Choi, Changhoon +3 more
openaire +3 more sources
Photothermal detection of trace optical absorption in water by use of visible-light-emitting diodes [PDF]
, 1998 Visible light emitting diodes of three different colors have been used to detect an absorbing compound (potassiumpermanganate) in trace quantities in aqueous solution.
Johnson, Mark +2 more
core +1 more source
Aggregate, 2023 Polyimide (PI), an important engineering polymer with a rigid chemical structure, readily has excellent chemical stability, heat resistance, and electrical insulation but lacks broadband photothermal properties.
Shi‐Qin Li +5 more
doaj +1 more source
Green–Light–Driven Poly(N-isopropylacrylamide-acrylamide)/Fe3O4 Nanocomposite Hydrogel Actuators
Frontiers in Materials, 2022 Light-responsive hydrogel actuators show attractive biomedical applications for in vivo drug delivery tool, surgical tissue repair operation, and vascular cleaning due to its non-contact, rapid, precise, and remote spatial control of light.
Ying Cao +8 more
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Comparison of self-referencing techniques for photothermal detection of trace compounds in water [PDF]
, 2000 Self-referencing techniques are compared for a closed-cell photothermal detector that uses a water meniscus as a pressure sensor. Deflection of the meniscus was measured using an optical fibre Fabry–Perot interferometer.
Johnson, Mark +8 more
core +1 more source
Recent Advancements in Mitochondria-Targeted Nanoparticle Drug Delivery for Cancer Therapy
Nanomaterials, 2022 Mitochondria are critical subcellular organelles that produce most of the adenosine triphosphate (ATP) as the energy source for most eukaryotic cells. Moreover, recent findings show that mitochondria are not only the “powerhouse” inside cells, but also ...
Jiangsheng Xu +3 more
doaj +1 more source
Photothermal detection of trace compounds in water, using the deflection of a water meniscus [PDF]
, 1998 A novel photothermal detector is described, based on a closed cell suitable for use with low-frequency modulated continuous-wave light sources. Photothermal expansion in aqueous samples caused the deflection of a water meniscus held across a 200μℳ radius
Johnson, Mark +2 more
core +1 more source