Results 51 to 60 of about 22,735 (281)

Thiadiazoloquinoxaline-Based Semiconducting Polymer Nanoparticles for NIR-II Fluorescence Imaging-Guided Photothermal Therapy

open access: yesFrontiers in Bioengineering and Biotechnology, 2021
Phototheranostics have gained more and more attention in the field of cancer diagnosis and therapy. Among a variety of fluorophores for phototheranostics, semiconducting polymer nanoparticles (SPNs), which are usually constructed by encapsulating ...
Xuxuan Gu   +6 more
doaj   +1 more source

Nanothermometry in Living Cells: Physical Limits, Conceptual and Material Challenges

open access: yesAdvanced Functional Materials, EarlyView.
Heat and temperature are fundamental to life. When nanothermometers began probing regions as small as a living cell, they triggered controversial claims of large intracellular temperature gradients. We review physical constraints energy‐conservation, entropy production, thermodynamic fluctuations, and molecular dynamics.
Taras Plakhotnik
wiley   +1 more source

Strain‐Programmable Luminescent Adhesive Patch With Tartrazine‐Mediated Optical Skin Clearing for Photochemical Tissue Bonding

open access: yesAdvanced Functional Materials, EarlyView.
We propose a suture‐complementary approach that integrates optical skin clearing with a strain‐programmable luminescent adhesive patch. Hyaluronic acid promotes transdermal delivery of tartrazine to improve optical clearing and stabilizes its interaction with a photosensitizer. Optical clearing increases the penetration depth of visible light into skin,
Seong‐Jong Kim   +6 more
wiley   +1 more source

Multifunctional composite phase change materials with CNTs/SiC-modified epoxy coating for synergistically enhanced solar energy storage and photothermal conversion

open access: yesMaterials & Design
Developing multifunctional composite phase change materials (PCMs) featuring enhanced photothermal energy conversion and storage performance is of vital importance, yet traditional organic PCMs suffer from inherent drawbacks, including leakage and poor ...
Meng Fu   +5 more
doaj   +1 more source

Spectra management through hybrid nanofluid for sustainable cooling of agricultural greenhouses: An experimental study

open access: yesInternational Journal of Thermofluids, 2023
In the present experimental work, optically tuned CuS (99%)-MgO (1%)/water hybrid nanofluid (with a concentration of 0.005 wt.%) was synthesized to develop a distinct strategy for maintaining optimal temperature conditions inside greenhouses in hot arid ...
Muhammad Usman Sajid   +3 more
doaj   +1 more source

An optically activated cantilever using photomechanical effects in dye-doped polymer fibers

open access: yes, 2005
We report on what we believe is the first demonstration of an optically activated cantilever due to photomechanical effects in a dye-doped polymer optical fiber. The fiber is observed to bend when light is launched off-axis.
Athanassiou   +24 more
core   +1 more source

Actuating and Sensing Composites of Liquid Crystal Elastomers and Poly(ionic liquid)s

open access: yesAdvanced Functional Materials, EarlyView.
Ionic conductive, mechanically tough, flexible, and stretchable filaments of a composite material comprising a liquid crystal elastomer and a poly(ionic liquid) are produced through 3D printing, which exhibit large actuation strain under stimulation and electrical resistance variation in response to deformation or environmental condition changes. Their
Zeping Liu   +6 more
wiley   +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 quotient in melon and its relationship with the fruits sugar concentration

open access: yesScientia Agropecuaria, 2015
The aim of this work was to evaluate the effect of solar radiation and temperature on the sugar melon fruit using the photothermal quotient. Outdoor experiments were conducted in three successive years, using the hybrid cultivar 'HD Nº1'. The experiments
Carlos Bouzo   +3 more
doaj   +1 more source

HI-Light: A Glass-Waveguide-Based “Shell-and-Tube” Photothermal Reactor Platform for Converting CO2 to Fuels

open access: yesiScience, 2020
Summary: In this work, we introduce HI-Light, a surface-engineered glass-waveguide-based “shell-and-tube” type photothermal reactor which is both scalable in diameter and length. We examine the effect of temperature, light irradiation, and residence time
Xiangkun Elvis Cao   +6 more
doaj   +1 more source

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