Results 131 to 140 of about 33,690 (283)

Invisible near‐infrared thermo‐stimulated luminescence from carbon dots enabled by stepwise energy transfer for concealed information encryption

open access: yesResponsive Materials, EarlyView.
A fully metal‐free near‐infrared (NIR) thermo‐stimulated luminescent system is developed by embedding carbon dots into a carbon nitride matrix and integrating multistage Förster resonance energy transfer. The system exhibits long‐term charge retention, rewritable optical memory, and highly concealed NIR readout, promising for secure data encryption and
Kai Jiang   +5 more
wiley   +1 more source

Observation of GRB 221009A Early Afterglow in X-Ray/Gamma-Ray Energy Bands

open access: yesAstrophysical Journal Letters
The early afterglow of a gamma-ray burst (GRB) can provide critical information on the jet and progenitor of the GRB. The extreme brightness of GRB 221009A allows us to probe its early afterglow in unprecedented detail.
Chao Zheng   +47 more
semanticscholar   +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

Carbonized polymer dots with aqueous‐stable room‐temperature phosphorescence: Mechanism, matrix engineering, and application

open access: yesResponsive Materials, EarlyView.
This review focuses on inorganic and organic matrices that enable aqueous‐stable room‐temperature phosphorescence (RTP) in carbonized polymer dots (CPDs). It explains the underlying RTP mechanisms, highlights how matrix engineering provides spatial confinement and bonding interactions to stabilize triplet excitons in water, and demonstrates key ...
Yuhan Hou   +4 more
wiley   +1 more source

Intrinsic Narrowband Organic Afterglow

open access: yes
Narrowband organic afterglow materials show application in multiplexed bioimaging and others. However, materials featuring an intrinsic narrowband afterglow with an emission lifetime >100 ms remain elusive. We report a serendipitous finding of a chemical
Jiuyang Li (11773251)   +8 more
core   +1 more source

Afterglow Thermal Oxidation of Silicon Carbide

open access: yes, 2002
We report, for the first time, the growth of thermal oxides on silicon carbide at temperatures below 900 °C using a novel afterglow thermal reactor.
Arti Tibrewala   +2 more
core   +1 more source

Lanthanide Inorganic Nanoparticles Enhance Semiconducting Polymer Nanoparticles Afterglow Luminescence for In Vivo Afterglow/Magnetic Resonance Imaging

open access: yes
Dual/multimodal imaging strategies are increasingly recognized for their potential to provide comprehensive diagnostic insights in cancer imaging by harnessing complementary data.
Dingyou Lu (15214043)   +12 more
core   +1 more source

Aluminate Long Afterglow Luminescent Materials in Road Marking Field Research Progress and Development: A Review

open access: yesBuildings
This paper reviews the research progress and development of aluminate long afterglow luminescent materials in the field of road marking, especially the study of rare earth ion-activated strontium aluminate (SrAl2O4: Eu2+, Dy3+)-based long afterglow ...
Fangzhi Zhang   +7 more
doaj   +1 more source

Fire Testing and Hazard Assessment for Flame Retardant Polymer Composites

open access: yesSafety Science and Technology, EarlyView.
Flame retardant polymer composites are now being evaluated with more than pass or fail flammability tests. Heat release, smoke, toxicity, and system‐level behavior are receiving more attention, and multi‐scale methods are being used to describe fire hazard under more realistic conditions.
Shuheng Wang   +8 more
wiley   +1 more source

Effect of Humidity on Ionisation and Ion Chemistry in Active‐Capillary Dielectric Barrier Discharge Ionisation

open access: yesRapid Communications in Mass Spectrometry, Volume 40, Issue 18, 30 September 2026.
ABSTRACT Rationale Dielectric barrier discharge ionisation (DBDI) in an active‐capillary configuration (including the commercial SICRIT source) is widely used as a soft, ambient‐pressure ionisation method for vapours and gases, yet the role of water vapour in controlling reagent ion chemistry and analytical behaviour has not been mechanistically ...
Miroslav Polášek   +2 more
wiley   +1 more source

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