Results 101 to 110 of about 2,714,943 (294)

Fast Hydrogel Micro‐Actuators Driven by Electric Fields

open access: yesAdvanced Materials, EarlyView.
We report the fabrication of chemically programmable electroactuating microstructures through the first integration of two‐photon polymerization with electrically actuated gelatin methacrylate‐based hydrogels. By tailoring the charge of the polymer network, we demonstrate programmable polarity‐dependent bending, enabling microstructures that ...
Annaël Sort‐Montenegro   +6 more
wiley   +1 more source

Two-photon-induced photoconductivity enhancement in semiconductor microcavities: a theoretical investigation [PDF]

open access: yes, 2002
We describe a detailed theoretical investigation of two-photon absorption photoconductivity in semiconductor microcavities. We show that high enhancement (by a factor of >10, 000) of the nonlinear response can be obtained as a result of the microcavity ...
Folliot, H.   +7 more
core   +2 more sources

Two-photon microscopy : sequential imaging studies in vivo [PDF]

open access: yes, 2011
Microscopists have always desired to look inside various organ tissues to study structure, function and dysfunction of their cellular constituents. In the past, this has frequently required tissue extraction and histological preparation to gain access ...
Zammit, Christian   +4 more
core  

Multi‐Stimuli Responsive Angstrom‐Scale Two‐Dimensional Channels of Natural Layered Materials

open access: yesAdvanced Materials, EarlyView.
Å‐scale ion channels naturally formed within the interlayers of vermiculite clay enable ionic current modulation in response to mechanical, chemical, and electrical stimuli. Coupled pressure and electric fields induce reversible streaming current (Istream) polarity inversion, which is explained by a modified surface charge regulation model.
Raj Kumar Gogoi   +5 more
wiley   +1 more source

Advances in Halide Perovskites for Photon Radiation Detectors

open access: yesAdvanced Materials Technologies, EarlyView.
This work highlights recent progress in perovskite‐based photon radiation detectors, covering organic–inorganic hybrid, inorganic, lead‐free double, and vacancy‐ordered halide perovskites. Their detection performance is compared, material‐specific advantages and challenges are examined, and provides insight into current limitations and future ...
Liangling Wang   +3 more
wiley   +1 more source

Characterization of a 6 MV photon beam in terms of primary and scattered dose components [PDF]

open access: yes, 2009
The purpose of this work was to partition the 6 MV photon beam of a Philips SL75-5 linear accelerator into primary and scattered dose components in water.
Trauernicht, Christoph Jan
core   +1 more source

Two-photon luminescent MOFs/MOCs for biomedical applications

open access: yesGiant
Two‑photon (TP) excited fluorescence has emerged as a key technology for high‑resolution imaging in the life sciences, owing to its advantages of near‑infrared excitation, deep‑tissue penetration, minimized light scattering, and low phototoxicity. Driven
Yu Zhang   +5 more
doaj   +1 more source

New frontiers in proton therapy: applications in cancers

open access: yesCancer Communications, 2019
Proton therapy offers dominant advantages over photon therapy due to the unique depth-dose characteristics of proton, which can cause a dramatic reduction in normal tissue doses both distal and proximal to the tumor target volume.
Tai-Ze Yuan   +2 more
doaj   +1 more source

Microneedles Mediated Delivery of Nanodiamonds for Quantum Sensing of Free Radicals in Skin Tissue

open access: yesAdvanced Materials Technologies, EarlyView.
Fluorescent nanodiamonds are nanoscale sensors capable of monitoring cellular stress responses. However, to function effectively, they must be delivered into cells or tissues. Here, we demonstrate their application in the skin by developing a dissolvable microneedle platform that dissolves after skin insertion, enabling the delivery of nanodiamonds ...
Siyu Fan   +10 more
wiley   +1 more source

3D‐Printed Corneal Substitutes: Materials, Fabrication, and Preclinical Progress

open access: yesAdvanced Materials Technologies, EarlyView.
Successful clinical translation of 3D‐printed corneal substitutes relies on the interplay between the bioink properties, cellular component, and the fabrication process. These factors influence the critical properties of the construct, including optical transparency, mechanical stability, suture retention, that ultimately govern long‐term stromal ...
Shadi Moshayedi   +4 more
wiley   +1 more source

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