Results 121 to 130 of about 9,394 (232)

Theranostic Upconversion Nanoparticles (II)

open access: yes, 2013
This theme issue provides a comprehensive collection of original research articles as well as reviews on the creation of diverse types of theranostic upconversion nanoparticles, their fundamental interactions in biology, as well as their biophotonic ...
Han, Gang, Chen, Guanying
core   +1 more source

DNA-mediated excitonic upconversion FRET switching

open access: yesNew Journal of Physics, 2015
Excitonics is a rapidly expanding field of nanophotonics in which the harvesting of photons, ensuing creation and transport of excitons via Förster resonant energy transfer (FRET), and subsequent charge separation or photon emission has led to the ...
Donald L Kellis   +7 more
doaj   +1 more source

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

open access: yesResponsive 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   +5 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

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

open access: yesPhotochemistry 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   +3 more
wiley   +1 more source

Influence of metallic nanoparticles on upconversion processes

open access: yes, 2008
International audienceIt is well known that Raman scattering and fluorescence can be enhanced by the presence of metallic nanoparticles. Here, we derive simple equations to analyze the influence of metallic nanoparticles on upconversion processes such as
Esteban, Ruben   +5 more
core   +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

Recent Progress on Rare-Earth-Doped Upconversion Nanomaterials for Bioassay Applications

open access: yesBiosensors
Rare-earth-doped upconversion nanoparticles (UCNPs) have been widely used in biological detection due to their unique anti-Stokes shift, stable chemical properties, tunable emission wavelengths, and low biotoxicity.
Jiling Xu   +5 more
doaj   +1 more source

Research Spotlight: Upconversion nanoparticles for potential cancer theranostics

open access: yes, 2011
Lanthanide-doped upconversion nanoparticles have recently attracted significant interest in the field of biomedicine. In the past 2 years, our group has been studying the applications of upconversion nanoparticles in biomedical imaging and drug delivery,
Chao Wang, Liang Cheng, Zhuang Liu
core   +1 more source

Sub-10 nm upconversion nanocrystals for long-term single-particle tracking

open access: yesNature Communications
Lanthanide-doped upconversion nanoparticles are attractive single-molecule imaging probes due to their high photostability and anti-Stokes luminescence. However, achieving both small particle size and strong brightness has remained a major challenge, as ...
Xiaochen Qiu   +8 more
doaj   +1 more source

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