Results 21 to 30 of about 9,055 (217)
Frontiers in Materials, 2023 Understanding the functions of enzymes in various physiological processes is important, but the design of signaling probes for fast analysis of enzymatic activity is particularly challenging.
Meicen Liu +11 more
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Two-photon absorption and two-photon-induced isomerization of azobenzene compounds
RSC Advances, 2020 The process of two-photon-induced isomerization occurring in various organic molecules, among which azobenzene derivatives hold a prominent position, offers a wide range of functionalities, which can be used in both material and life sciences.
Marta Dudek +5 more
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Frontiers in Neuroscience, 2023 To understand how neural activity encodes and coordinates behavior, it is desirable to record multi-neuronal activity in freely behaving animals. Imaging in unrestrained animals is challenging, especially for those, like larval Drosophila melanogaster ...
Akihiro Yamaguchi +7 more
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Neutralino annihilation into two photons [PDF]
Physics Letters B, 1997 We compute the annihilation cross-section of two neutralinos at rest into two photons, which is of importance for the indirect detection of neutralino dark matter in the galactic halo through a quasi-monochromatic gamma-ray line. We include all diagrams to one-loop level in the minimal supersymmetric extension of the standard model. We use the helicity
Bern, Z., Gondolo, P., Perelstein, M.
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Simultaneous two-photon imaging and two-photon optogenetics of cortical circuits in three dimensions
eLife, 2018 The simultaneous imaging and manipulating of neural activity could enable the functional dissection of neural circuits. Here we have combined two-photon optogenetics with simultaneous volumetric two-photon calcium imaging to measure and manipulate neural
Weijian Yang +4 more
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Reliable and Elastic Propagation of Cortical Seizures In Vivo
Cell Reports, 2017 Mapping the fine-scale neural activity that underlies epilepsy is key to identifying potential control targets of this frequently intractable disease.
Michael Wenzel +3 more
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Two-Photon Excitation of Azobenzene Photoswitches for Synthetic Optogenetics
Applied Sciences, 2020 Synthetic optogenetics is an emerging optical technique that enables users to photocontrol molecules, proteins, and cells in vitro and in vivo. This is achieved by use of synthetic chromophores—denoted photoswitches—that undergo light ...
Shai Kellner, Shai Berlin
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Ca2+ signaling in arterioles and small arteries of conscious, restrained optical biosensor mice
Frontiers in Physiology, 2014 Two-photon fluorescence microscopy and conscious, restrained optical biosensor mice were used to study smooth muscle Ca2+ signaling in ear arterioles. Conscious mice were used in order to preserve normal mean arterial blood pressure (MAP) and sympathetic
Seth T. Fairfax +5 more
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Maskless Writing of Surface-Attached Micro-Magnets by Two-Photon Crosslinking
Actuators, 2023 Surface-bound 3D micro-magnets are fabricated from photoreactive copolymers filled with magnetic nanoparticles by maskless 3D writing. The structures are generated by 2-photon crosslinking (2PC), which allows direct writing into solid films of composites
Nicolas Geid +3 more
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Chemical Two-Photon Fluorescence
Analytical Chemistry, 2015 We describe a method based on a caged fluorescent molecule that can act as a chemical two-photon probe. It is composed of an organic fluorophore and a ruthenium-bipyridine complex that acts as a photoremovable quencher. For the fluorophore to be emissive, two independent photons must act on the molecule: the first photon frees the fluorescent ligand ...
Carrone, Guillermo Alejandro +1 more
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