Results 151 to 160 of about 19,577 (268)

Recent Advances in Photonic Bound States in the Continuum: From Fundamentals to Engineering and Implementation

open access: yesLaser &Photonics Reviews, EarlyView.
This review summarizes recent progress in meta‐photonics with a focus on bound states in the continuum (BICs) as a powerful platform for light confinement and control. It covers fundamental concepts, design strategies across optical regimes, symmetry breaking for practical quasi‐BICs, tunable and AI‐assisted BIC devices, and emerging applications in ...
Hafiz Saad Khaliq, Hak‐Rin Kim
wiley   +1 more source

Upconversion-Mediated Optogenetics for the Treatment of Surgery-Induced Postoperative Neurocognitive Dysfunction

open access: yes
Perioperative neurocognitive disorder (PND) is a common complication in surgical patients. While many interventions to prevent PND have been studied, the availability of treatment methods is limited.
Ziyan Huang (3863497)   +14 more
core   +1 more source

Laser‐Based In Situ Diagnostics of Temperature and Material‐Growth Dynamics in Photothermal Laser Nanoprinting of ZnO

open access: yesLaser &Photonics Reviews, EarlyView.
This work elucidates the previously unknown thermal dynamics during sub‐micrometer photothermal laser printing of zinc oxide using a non‐invasive transmission‐based in situ measurement. The elevated temperatures are shown to be highly localized around the laser focal spot, reaching average temperature increases of about 113 K per mW of laser power ...
Steven Kraus   +4 more
wiley   +1 more source

Responsive nitric oxide‐releasing antibacterial materials for biofilm‐associated infections: Mechanisms, design strategies, and applications

open access: yesResponsive Materials, EarlyView.
This review summarizes the recent progress in responsive NO‐releasing materials and their applications in biofilm‐associated infectious diseases. The design principles and response mechanisms are given to provide inspiration toward the future development of multi‐responsive NO‐releasing materials.
Wenyue Sun   +8 more
wiley   +1 more source

Recent Advances in Bimetallic Site Catalysts for Photocatalytic Ammonia Synthesis: Synergistic Effects and Design Strategies

open access: yesSmall, EarlyView.
Photocatalytic ammonia synthesis employs photocatalysts to harness solar energy, driving the reduction of N2 into NH3. The synergistic effects of bimetallic active sites are used to overcome limitations of single‐metal systems and optimize electronic structures.
Haibo Guo   +7 more
wiley   +1 more source

Supramolecular Annihilator with DPA Parallelly Arranged by Multiple Hydrogen-Bonding Interactions for Enhanced Triplet–Triplet Annihilation Upconversion

open access: yesMolecules
The triplet annihilator is a critical component for triplet–triplet annihilation upconversion (TTA-UC); both the photophysical properties of the annihilator and the intermolecular orientation have pivotal effects on the overall efficiency of TTA-UC ...
Qiuhui He   +4 more
doaj   +1 more source

Activatable smart contrast agents for photoacoustic imaging

open access: yesSmart Molecules, EarlyView.
This review highlights recent advances in smart activatable photoacoustic imaging (PAI) contrast agents, which dynamically modulate their optical properties in response to external stimuli or microenvironmental cues. It discusses their molecular design, activation mechanisms, biomedical applications, and future prospects for clinically tailored use ...
Donghyeon Oh   +5 more
wiley   +1 more source

Synthesis of Er- and Yb-doped gadolinium oxide polymorphs and influence of their structures on upconversion properties

open access: yesActa Chimica Slovenica, 2014
Nanocrystalline Gd2O3 products doped with Er3+ and Yb3+ cations were synthesized by combustion method. We showed that the temperature of combustion can be tuned by using different types of organic fuels within reaction mixture.
Matjaž Mazaj   +4 more
doaj  

Near-Infrared Synaptic Responses of WSe2 Artificial Synapse Based on Upconversion Luminescence from Lanthanide Doped Nanoparticles

open access: yesInorganics
Near-infrared (NIR) photoelectric synaptic devices show great potential in studying NIR artificial visual systems integrating excellent optical characteristics and bionic synaptic plasticity.
Yaxian Lu   +8 more
doaj   +1 more source

Hybrid Cell Membrane‐Coated NIR‐Photodegradable Carbon Nitride Nanozymes for Mangiferin Dual‐Targeted Delivery and Gas Mild Photothermal Immunotherapy Against Liver Fibrosis via the HIF‐1α/HSP27 Axis

open access: yesCarbon Neutralization, Volume 5, Issue 4, July 2026.
We developed HMCCNs@MAN, a biomimetic drug–gas codelivery platform for precise mild photothermal immunotherapy of liver fibrosis. Coated with hybrid macrophage‐aHSC membranes, it enables dual‐targeted delivery of MAN to the hepatic fibrosis site. Under NIR laser irradiation, HMCCNs@MAN can generate oxygen, release MAN, and produce heat.
Ming‐Xuan Liu   +9 more
wiley   +1 more source

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