Results 91 to 100 of about 3,807 (195)

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

Laser &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, Kristian Kraft, Yolita M. Eggeler, Martin Wegener, Paul Somers   +4 more
wiley   +1 more source

Silica-coated upconversion lanthanide nanoparticles: The effect of crystal design on morphology, structure and optical properties

Beilstein Journal of Nanotechnology, 2015
NaYF4:Yb3+/Er3+ nanoparticles were synthesized by thermal decomposition of lanthanide trifluoroacetates using oleylamine (OM) as both solvent and surface binding ligand.
Uliana Kostiv, Miroslav Šlouf, Hana Macková, Alexander Zhigunov, Hana Engstová, Katarína Smolková, Petr Ježek, Daniel Horák   +7 more
doaj   +1 more source

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

Responsive 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, Meiqi Li, Di Nan, Jiaqi Zhao, Yu Chen, Yao Gao, Shichen Zhang, Kirsten L. Van Landuyt, Manlin Qi   +8 more
wiley   +1 more source

Photo‐responsive carbon dots for pyroptosis‐mediated anti‐tumor application

Responsive Materials, EarlyView.
Photo‐responsive CDs generate ROS to induce tumor cell pyroptosis, thereby stimulating antitumor immunity. Abstract Pyroptosis refers to a kind of lytic programmed cell death, characterized by the release of pro‐inflammatory cytokines during the process. Owing to its immune response stimulation ability, pyroptosis has garnered considerable attention in
Lingyun Li, Xue Wu, Zekun Yan, Jun Wu, Caishi Huang, Songnan Qu   +5 more
wiley   +1 more source

Single-particle Förster resonance energy transfer from upconversion nanoparticles to organic dyes

Nanoscale Advances
We developed a single-particle FRET platform based on upconversion nanocrystals, which shows 8.3 times FRET-based upconversion enhancement and excellent photostability.
Jialing Hu, Fei Zhao, Huan Ling, Yunxiang Zhang, Qian Liu   +4 more
openaire   +2 more sources

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

Small, 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, Liying Wang, Jingjing Wang, Zhenzhu Cao, Yongfeng Zhang, Ziwei Tong, Zhongchao Bai, Nana Wang   +7 more
wiley   +1 more source

Phototherapies mediated by metallic nanoparticles and near‐infrared radiation in skin cancer: A systematic review

Photochemistry and Photobiology, EarlyView.
Recent studies demonstrate that near‐infrared (NIR—750–980 nm)‐mediated photodynamic (PDT) and photothermal (PTT) therapies, combined with metallic nanoparticles (MNPs), show promising results against skin cancer, particularly melanoma, in both in vitro and in vivo models.
Tamyris Devincenzi, Alessandra Costa Lopes, Marcelo Augusto Germani Marinho, Daza de Moraes Vaz Batista Filgueira   +3 more
wiley   +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

Carbon 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, Yue Yang, Xin‐Ru Zhao, Su‐Yun Zhang, Yu‐Ting Cai, Nan Zhang, Jue Wang, Ke‐Yang Xu, Zi‐Ming Zhao, Qi‐Biao Wu   +9 more
wiley   +1 more source

Real‐Time Monitoring of Excited‐State Ring‐Puckering Process in BODIPY Molecule Using Ultrafast Spectroscopy

ChemPhysChem, Volume 27, Issue 11, 15 June 2026.
Pyrromethene 597 (PM597), a commercial laser dye, shows a lower fluorescence yield than its analogues. Ultrafast dynamics studies using femtosecond fluorescence upconversion and transient absorption revealed that a non‐radiative ring‐puckering process in the excited state of PM597, occurring with a time constant of 1.3 ps, is primarily responsible for ...
Ayentika Sen, Aruna K. Mora, Sukhendu Nath   +2 more
wiley   +1 more source

Photo-driven upconversion in NaYF4:Yb,Er@chitosane particles for cancer cells bioimaging [PDF]

, 2017
Lanthanide doped up-converting nanoparticles (UCNPs) have significant role in biomedical field, especially in cell imaging and target drug delivery, due to their convenient luminescent properties. For that purpose UCNPs should have the specific morphological and luminescent characteristics.
Dinić, Ivana, Đukić-Vuković, Aleksandra, Nikolić, Marko G., Milošević, Olivera B., Mančić, Lidija   +4 more
openaire   +1 more source