Results 81 to 90 of about 183,389 (397)

Laser cooling and control of excitations in superfluid helium

open access: yes, 2015
Superfluidity is an emergent quantum phenomenon which arises due to strong interactions between elementary excitations in liquid helium. These excitations have been probed with great success using techniques such as neutron and light scattering.
Baker, C.   +5 more
core   +1 more source

4D‐Printed Magneto‐Plasmonic Microrobots for Programmable Spatiotemporal De‐Icing

open access: yesAdvanced Functional Materials, EarlyView.
A 4D‐printing strategy is introduced to achieve programmable de‐icing devices. By aligning gold–magnetite nanofillers within a photosensitive resin, the printed structures exhibit dual magnetic and plasmonic functionalities, enabling precise spatio‐temporal ice removal through thermoplasmonic effects.
Amélie Pérot   +7 more
wiley   +1 more source

Electron and Phonon Thermal Waves in Semiconductors: an Application to Photothermal Effects

open access: yes, 1996
The electron and phonon temperature distribution function are calculated in semiconductors. We solved the coupled one-dimensional heat-diffussion equations in the linear approximation in which the physical parameters on the sample are independent of the ...
Bass F. G.   +10 more
core   +1 more source

Enhanced cancer therapy with cold-controlled drug release and photothermal warming enabled by one nanoplatform [PDF]

open access: yes, 2018
Stimuli-responsive nanoparticles hold great promise for drug delivery to improve the safety and efficacy of cancer therapy. One of the most investigated stimuli-responsive strategies is to induce drug release by heating with laser, ultrasound, or ...
Agarwal, Pranay   +7 more
core   +1 more source

An Engineered Living Material With Pro‐Angiogenic Activity Inducible by Near‐Infrared Light

open access: yesAdvanced Functional Materials, EarlyView.
NIR‐responsive engineered living materials (ELMs) for controlled angiogenesis: Near‐infrared (800 nm) light activates engineered probiotic bacteria within alginate‐based living materials to secrete a blood vessel‐regenerating protein. The released protein promotes pro‐angiogenic effects in endothelial networks and chick chorioallantoic membranes.
Anwesha Chatterjee   +4 more
wiley   +1 more source

Photothermal Perylene Bisimide Hydrogels

open access: yesChemistry – A European Journal, 2023
AbstractGels formed using a perylene bisimide (PBI) as a low molecular weight gelator can show the photothermal effect. Formation of the PBI radical anion results in new absorption bands forming, meaning that subsequent irradiation with a wavelength of light overlapping with the new absorption band leads to heating of the gel. This approach can be used
Lisa Thomson   +4 more
openaire   +2 more sources

Thermo‐Mechanically Recyclable Smart Textiles from Circularly Knitted Liquid Crystal Elastomer Fibers

open access: yesAdvanced Functional Materials, EarlyView.
Reprogrammable multi‐material smart textiles knitted from liquid crystal elastomer fibers undergo 2D and 3D deformation under thermal and photo stimuli. Circularly knitted tubular structures reversibly contract in radial and axial directions, enabling autonomous climbing, liquid release, and micro pumping.
Xue Wan   +8 more
wiley   +1 more source

Fluence and wavelength optimization of pulsed laser in photothermal therapy [PDF]

open access: yesInternational Journal of Biophotonics and Biomedical Engineering
The ability of Plasmonic nanoparticles (PNPs) to efficiently convert absorbed light energy into localized heat has made them a popular choice for photothermal medical applications. However, during the photothermal process, the diffusion of localized heat
Rasoul Malekfar, Neda Amjadi
doaj   +1 more source

Frequency-dependent photothermal measurement of thermal diffusivity for opaque and non-opaque materials; Application to crystals of TIPS-pentacene [PDF]

open access: yes, 2018
We propose the use of a frequency-dependent photothermal measurement as a complement to light-flash, i.e. time-dependent, measurements to determine the through-plane thermal diffusivity of small, thin samples, e.g.
Brill, J. W., Shahi, Maryam
core   +3 more sources

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