Results 161 to 170 of about 5,039 (253)

Fluorescence Tuning of Carbon Dots from Red to Blue via UV‐Induced Photochemical Etching

Advanced Science, Volume 13, Issue 43, 3 August 2026.
A UV‐driven photochemical process enables continuous color evolution of carbon dots from red to blue using a single irradiation parameter. Progressive photoetching restructures graphitic domains and surface states, allowing full visible‐spectrum emission control.
Nanzhi Zheng, Yuchen Yang, Jingwei Xu, Jincheng Gan, Yinuo An, Xinyu Li, Guohua Chen   +6 more
wiley   +1 more source

Programmable wavelength- and time-dependent multicolor afterglow in polyvinyl alcohol <i>via</i> synergistic ion-bridging and crosslinking interactions. [PDF]

Chem Sci
Yang S, Lv Y, Zhai G, Yu X, Du J, Jiang Y, Miao D, Xiao G, Xu C.   +8 more
europepmc   +1 more source

Self‑Protective Carbonized Polymer Dots Enabling Ultralong Room‑Temperature Phosphorescence in Strong and Tough Flexible Gels

Aggregate, Volume 7, Issue 8, August 2026.
The trade‐off between intersystem crossing and triplet exciton stabilization in PVA‐based self‐protective CPDs is resolved by tuning the alcoholysis degree of PVA. Using PVA with 88% alcoholysis affords NCD88 with an ultralong RTP lifetime of 1.05 s.
Yulei Gao, Pingchuan Sun, Fenfen Wang
wiley   +1 more source

All-Inorganic Lead-Free Perovskite Variant Nanocrystals for Advanced Photonic Applications. [PDF]

Sensors (Basel)
Ni K, Zhou W, Zhuang X, Zou X.
europepmc   +1 more source

The Role of Research, Quality Improvement, and Training in Achieving Medicines Security in Nigeria: A Cross‐Sectional Exploration of Stakeholders' Perspectives

Health Science Reports, Volume 9, Issue 8, August 2026.
ABSTRACT Background and Aims Equitable access to medicines remains a challenge in Nigeria with issues such as sub‐optimal national pharmaceutical production capacities and the need to improve relevant quality standards. Thus, in order to identify context‐specific solutions to this challenge, this study aimed to assess the perspectives of stakeholders ...
Obi Peter Adigwe, Godspower Onavbavba, Toluwalope Folashade Alabi, Nwakaego Rosemary Uzuh   +3 more
wiley   +1 more source

Tunable Luminescence in Sb³⁺-Doped Cs₃LnCl₆ Perovskites for Wide-Coverage Emission and Anti-Counterfeiting Applications. [PDF]

Nanomaterials (Basel)
Zhang L, Chen L, Xu S, Cao Y, Zhang X, Yu H, Gao Y, Chen B.   +7 more
europepmc   +1 more source

One‐Year Reattendance Rates to the Emergency Department for Acute Illicit Drug Exposure in Western Australia: A Retrospective Registry Study

Emergency Medicine Australasia, Volume 38, Issue 4, August 2026.
ABSTRACT Objective Determine 1‐year emergency department (ED) drug‐related reattendance rates of patients enrolled in the Emerging Drugs Network of Australia across five Western Australian hospitals. Methods Index presentations and 1‐year reattendances were extracted.
Courtney C. Weber, Daniel M. Fatovich, Ellie M. Kotkis, Jennifer L. Smith   +3 more
wiley   +1 more source

Bio-Inspired Structural Color Irises as Physical Unclonable Functions for Anti-Counterfeiting. [PDF]

Adv Sci (Weinh)
Ge K, Hu Y, Yan J, Ding J, Gao Y, Yi H, Li Z, Cui L, Hu S, Ji H, Li M, Bai R, Shi R, Feng H.   +13 more
europepmc   +1 more source

Temporal and geographical patterns of nitazene detections in drug samples and biospecimens in the United States, 2019–2024

Addiction, Volume 121, Issue 8, Page 2019-2032, August 2026.
Abstract Background and aims Nitazenes are a novel subclass of synthetic opioids that have been increasingly implicated in the United States (US) overdose crisis. Despite their growing presence in the illicit drug supply, national trends have not been systematically evaluated.
David T. Zhu, Nicole D. Fitzgerald, Joseph J. Palamar, Alex J. Krotulski   +3 more
wiley   +1 more source

Isomer design unlocks rainbow phosphorescence. [PDF]

Nat Commun
Xu X, Ding D, Ding X, Han S, Zakhidov E, Li F, Sun M.   +6 more
europepmc   +1 more source