Results 241 to 250 of about 190,833 (286)
Advanced Healthcare Materials, EarlyView.This work introduces photo‐crosslinkable tyraminated poly(vinyl alcohol)‐gelatin (PVA‐GT) hydrogels as tunable injectable platforms for tissue engineering and growth factor delivery applications. This schematic illustrates the two developed hydrogel formulations and the experimental workflow used to evaluate their physico‐chemical properties in vitro ...
Alessia Longoni +15 more
wiley +1 more source
Skin‐Interfaced Therapeutic Patches for Wound Fluid Management and Transdermal Drug Delivery
Advanced Healthcare Materials, EarlyView.This study presents an integrated skin‐interfaced device combining microfluidics, hydrogel film technology, flexible electronics, and iontophoresis‐based transdermal delivery of PDRN to enhance wound healing. The device effectively manages wound fluid, maintains optimal moisture, and non‐invasively delivers therapeutic drugs.
Dongjun Han +5 more
wiley +1 more source
Advanced Healthcare Materials, EarlyView.Implantable optoelectrical devices are an effective resource for the modulation and monitoring of neural activity with high spatiotemporal resolution. This review discusses current challenges faced by these devices and outlines future perspectives for the development of next‐generation neural interfaces targeting chronic, multisite, and multimodal ...
Stella Aslanoglou +4 more
wiley +1 more source
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Reports on Progress in Physics, 2013
The phenomenon of light's momentum was first observed in the laboratory at the beginning of the twentieth century, and its potential for manipulating microscopic particles was demonstrated by Ashkin some 70 years later. Since that initial demonstration, and the seminal 1986 paper where a single-beam gradient-force trap was realized, optical trapping ...
Richard W, Bowman, Miles J, Padgett
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The phenomenon of light's momentum was first observed in the laboratory at the beginning of the twentieth century, and its potential for manipulating microscopic particles was demonstrated by Ashkin some 70 years later. Since that initial demonstration, and the seminal 1986 paper where a single-beam gradient-force trap was realized, optical trapping ...
Richard W, Bowman, Miles J, Padgett
openaire +2 more sources
Frontiers in Optics 2007/Laser Science XXIII/Organic Materials and Devices for Displays and Energy Conversion, 2007
We report the use of light from a thermal source for optical trapping and guiding of dielectric microscopic particles. The light source is filtered for increased spatial coherence and subsequently shaped into a white light Bessel beam for reduced spot size and increased optical gradient.
Carlos Lopez-Mariscal +3 more
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We report the use of light from a thermal source for optical trapping and guiding of dielectric microscopic particles. The light source is filtered for increased spatial coherence and subsequently shaped into a white light Bessel beam for reduced spot size and increased optical gradient.
Carlos Lopez-Mariscal +3 more
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Optical Trapping in Plant Cells
2013Optical tweezers allow noninvasive manipulation of subcellular compartments to study their physical interactions and attachments. By measuring (delay of) displacements, (semi-)quantitative force measurements within a living cell can be performed. In this chapter, we provide practical tips for setting up such experiments paying special attention to the ...
Ketelaar, T. +2 more
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Optical trapping of carbon nanotubes
Physica E: Low-dimensional Systems and Nanostructures, 2008Optical trapping is a new tool for the manipulation and deposition of single wall carbon nanotube (SWNT) bundles. We present a study on optical trapping and manipulation of SWNT bundles in different environments, aimed at understanding the trapping mechanism. SWNTs are dispersed in water or organic solvents, and a wide range of both ionic and non-ionic
Maragò O M +11 more
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Optical Traps for Dark Excitons
Physical Review Letters, 2011We propose a mechanism for optical trapping of dark excitons by linearly polarized unabsorbed standing waves, with a potential depth of the order of a few meV. Since this trapping, based on carrier exchanges with virtual excitons coupled to unabsorbed photons, equally acts on bright and dark states, Bose-Einstein condensation of excitons--which occurs ...
Combescot, Monique +2 more
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Multiply loaded magneto-optical trap
Optics Letters, 1996We report a two-chambered, differentially pumped system that permits rapid collection of trapped atoms with a vapor cell magneto-optical trap (MOT) and efficient transfer of these atoms to a second MOT in a lowerpressure chamber. During the transfer the atoms are guided down a long, thin tube by a magnetic potential, with 90(15%) transfer efficiency ...
C J, Myatt +4 more
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Optics in the Life Sciences, 2013
We present an optical trapping “virometry” that allows sorting of nanoscale particles such as viruses under physiological conditions. As an example, we use this technique to quantitate heterogeneities among individual HIV-1 virions at single-molecule resolution.
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We present an optical trapping “virometry” that allows sorting of nanoscale particles such as viruses under physiological conditions. As an example, we use this technique to quantitate heterogeneities among individual HIV-1 virions at single-molecule resolution.
openaire +1 more source