Results 91 to 100 of about 1,254,309 (209)

TADF-Active Tetrazole Luminophores for Visible-Light Functionalization of Nanoparticles and Surfaces. [PDF]

Angew Chem Int Ed Engl
A series of tetrazoles are reported that undergo 1,3‐dipolar cycloadditions with alkene and alkyne substrates, generating (dihydro)pyrazole products that exhibit thermally activated delayed fluorescence (TADF). The “photo‐click” reactivity of these tetrazoles is leveraged to functionalize nanoparticles and surfaces with TADF‐active chromophores ...
Hojo R, Bergmann K, Xie SL, Durfy CS, Primrose WL, Gogoulis AT, Elgadi SA, Demchuk MJ, Kalab T, Hu P, Nichols EM, Hudson ZM.   +11 more
europepmc   +3 more sources

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

Advances in singlet oxygen chemistry

, 2005
The authors discuss the advances made in both mechanistic and synthetic aspects of singlet oxygen chem. Formation and reactions of singlet oxygen in heterogeneous media (such as zeolites, micelles, vesicles, etc.) are discussed. Cycloaddns.
CLENNAN, EL, Andrea Pace, PACE, Andrea, Edward L. Clennan   +3 more
core   +1 more source

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

Responsive 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, Chengyu Zheng, Songyuan Tao, Yuzhuo Wang, Bai Yang   +4 more
wiley   +1 more source

Mechanism‐Guided Engineering of Upconversion Nanoparticles for Antibacterial Phototherapy: From Photonic Principles to Translational Nanosystems

Small, EarlyView.
This review provides a systematic overview of the field of antibacterial PhotoDynamic Therapy (aPDT) triggered by upconversion nanoparticles (UCNPs), focusing on the mechanisms and the key factors that define their efficacy for generating bactericidal species upon NIR‐light activation.
Zhe Li, Calum Johnston, Barbara Lonetti, Clément Roux   +3 more
wiley   +1 more source

Singlet fission in thin films of metallo-supramolecular polymers with ditopic thiophene-bridged terpyridine ligands

, 2017
Ultrafast singlet exciton fission in thin solid films after UV laser photoexcitation was observed using transient absorption spectroscopy.
Jiří Vohlídal, David Rais, Alexander Zhigunov, Jan Svoboda, Pavla Štenclová, Miroslav Menšík, Jiří Pfleger   +6 more
core   +1 more source

Dual room‐temperature phosphorescence derived from the reversible homolysis in the high proportion n‐electron organic crystal

Smart Molecules, EarlyView.
[2,2′‐biisoindoline]‐1,1′,3,3′‐tetraone (4A2B) crystal with high n‐electrons undergoes photo‐induced reversible homolysis resulting in two room‐temperature phosphorescence (RTP). One of the 4A2B molecules responds strongly to 250 nm via fast intersystem crossing (ISC) processes among high‐lying excited states.
Junxiang Huang, Dongqian Wang, Dongping Wang, Qichao Yao, Xingyu Huangfu, Guian Yang, Saran Long, Jianjun Du, Jiangli Fan, Xiaojun Peng   +9 more
wiley   +1 more source

Metal Bacteriochlorins Which Act as Dual Singlet Oxygen and Superoxide Generators

, 2016
A series of stable free-base, ZnII and PdII bacteriochlorins containing a fused six- or five-member diketo- or imide ring have been synthesized as good candidates for photodynamic therapy sensitizers, and their electrochemical, photophysical, and ...
Shunichi Fukuzumi (1326822), Xiang Zheng (209075), Yihui Chen (446576), Riqiang Zhan (2450983), Karl M. Kadish (1431214), Kei Ohkubo (1326819), Ravindra K. Pandey (2022670)   +6 more
core   +1 more source

Facile one‐step synthesis of efficient hybridized local and charge transfer emitter for ultraviolet electroluminescence with low roll‐off

Smart Molecules, EarlyView.
An effective hybridized local and charge‐transfer emitter D3CZ4F featuring multiple C–H⋯F locking interactions was developed, achieving an outstanding EQE of 8.97%, a small roll‐off, an emission peak at 388 nm, and color coordinates of (0.165, 0.025), respectively.
Shengnan Wang, Jixiang Wang, Danyu Xie, Ling Peng, Yuchao Liu, Junjie Wang, Shian Ying, Dongge Ma, Shouke Yan   +8 more
wiley   +1 more source

Sulfur‐ and Selenium‐Decorated Coumarins: Synthetic Strategies Involving Cyclization and Late‐Stage Functionalization

The Chemical Record, EarlyView.
Two decades of synthetic strategies for sulfur‐, selenium‐decorated coumarins are critically surveyed through 44 literature reports, with particular emphasis on derivatives functionalized at the C‐3 and C‐4 positions. This review reports the direct construction of the coumarin framework through cyclization processes and late‐stage functionalization of ...
Bruna R. Schneider, Laura D. de Avila, Mauricio C. D. F. Xavier, Alex F. C. Flores, Liane K. Soares, Gabriel P. da Costa, Angelita M. Barcellos   +6 more
wiley   +1 more source