Results 201 to 210 of about 701,715 (295)

Rayleigh scattering in few-mode optical fibers. [PDF]

open access: yesSci Rep, 2016
Wang Z, Wu H, Hu X, Zhao N, Mo Q, Li G.
europepmc   +1 more source

Two‐Photon Fluorescence and Second‐Harmonic Generation Microscopy: Principles and Biomedical Applications

open access: yesJournal of Biophotonics, Volume 19, Issue 10, October 2026.
Compared with single‐photon methods, TPM enables deep‐tissue imaging using near‐infrared light, with excitation confined to the focal plane, thereby reducing photodamage. SHG microscopy images noncentrosymmetric biological structures such as collagen and myosin without fluorescent labels, offering direct structural contrast.
Kausalya Neelavara Makkithaya   +7 more
wiley   +1 more source

Femtosecond‐Laser‐Inscribed Cladding Fiber Bragg Gratings: Architectures, Design Trade‐Offs and Future Sensing Opportunities

open access: yesLaser &Photonics Reviews, Volume 20, Issue 19, 7 October 2026.
Femtosecond‐laser inscription enables precise positioning of fiber Bragg gratings within the cladding, introducing new spatial and modal design freedoms. Auxiliary‐waveguide, near‐core evanescent‐field, and direct cladding‐mode‐excitation architectures provide complementary pathways toward multiparameter, vector, distributed, and environmentally ...
Koustav Dey   +3 more
wiley   +1 more source

Ultrastable Water‐in‐Water Emulsions by Addition of Polyion Complex Micelles

open access: yesMacromolecular Rapid Communications, Volume 47, Issue 19, 6 October 2026.
Water‐in‐water emulsions from mixtures of dextran and poly(ethylene oxide) (PEO) prepared in the presence of polyion complex micelles display an increase of stability from few hours to several months. Both dextran‐in‐PEO and PEO‐in‐dextran were stable against coalescence over this period of time.
Léna S. Vincent   +8 more
wiley   +1 more source

Spiropyran‐Crosslinked PDMS Optical Waveguides for Pressure Sensing and Visual Cue of Localized Pressure Threshold

open access: yesPolymers for Advanced Technologies, Volume 37, Issue 10, October 2026.
ABSTRACT Compliant optical waveguides are promising candidates for stress/strain sensing in soft robotics and personalized healthcare. While poly(dimethylsiloxane) (PDMS) offers a robust platform, enhancing sensitivity and integrating localized visual indicators for pressure threshold detection remains an active area of research.
Camila A. Zimmermann, Bora Ung
wiley   +1 more source

The assembly of tetrameric human L‐lactate dehydrogenase is regulated by ionic strength, β‐NADH binding, cyclic peptides, and long‐chain dicarboxylates

open access: yesProtein Science, Volume 35, Issue 10, October 2026.
Abstract Lactate dehydrogenases catalyze the reduction of pyruvate to lactate, the generation of which is of importance for the energetic metabolism of malignant cells. In particular, human cancer cells overexpress lactate dehydrogenase A (hLDH‐A), whose catalytic activity depends on its assembly into the corresponding homotetramer (denoted as hLDH‐5),
Alessandra Stefan   +7 more
wiley   +1 more source

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