Results 211 to 220 of about 233,639 (295)

Luminescent Donor‐Acceptor Radical With Propeller Chirality: Bright and Photostable Red Circularly Polarized Luminescence and Whispering Gallery Mode Resonance

Angewandte Chemie, EarlyView.
A series of donor‐attached brominated chiral luminescent radicals (CzTTBrM, 2CzTTBrM, and 3CzTTBrM) was synthesized, showing red to near‐infrared (NIR) circularly polarized luminescence (CPL) with exceptionally high PLQY of up to 76% and markedly enhanced CPL brightness (BCPL). Doping into polystyrene microspheres further yields whispering gallery mode
Kazuhiro Nakamura, Kenshiro Matsuda, Kosuke Anraku, Keiko Yamaoka, Taisuke Matsumoto, Fumitaka Ishiwari, Takeaki Zaima, Wataru Ota, Emiko Fujiwara, Tohru Sato, Yoshitaka Inoue, Soh Kushida, Yohei Yamamoto, Takuya Hosokai, Ken Albrecht   +14 more
wiley   +1 more source

Turning the Near-Infrared Shielding Performance of Erbium/Antimony-Codoped Tin Oxide Nanomaterials Derived via a Sonochemically Assisted Method. [PDF]

ACS Omega
Kansaard T, Noinonmueng T, Jayasankar CK, Mekprasart W, Boonyarattanakalin K, Pecharapa W.   +5 more
europepmc   +1 more source

Topology‐Dependent Coke Formation in the Catalytic Pyrolysis of Phenol Over HFAU and HZSM‐5 Zeolites

Angewandte Chemie, EarlyView.
The coke formation and speciation during the catalytic pyrolysis of lignin over different zeolite topologies were studied with a combination of operando EPR spectroscopy and ex situ pulsed techniques aided with DFT calculations. Operando EPR data showed that the coke formation in HFAU is fast compared to HZSM‐5.
Jörg W. A. Fischer, Allen Puente‐Urbina, Zeyou Pan, Mikhail Agrachev, Patrick Hemberger, Gunnar Jeschke, Jeroen A. van Bokhoven   +6 more
wiley   +1 more source

Crystallographic and EPR-based characterisation of Cu²⁺-binding to serum albumin: ATCUN coordination and additional sites.

Inorg Chem Front
Gucwa M, Handing KB, Bijak V, Ackermann K, Chakraborty A, Pautarak A, Redpath T, Lin B, Slawek J, Blindauer CA, Stewart AJ, Bode BE, Minor W.   +12 more
europepmc   +1 more source

Monitoring Redox Pathways and Performance Limitations in Lithium‐Sulfur Batteries Using In Situ 7/6Li and 33S NMR Spectroscopies

Angewandte Chemie, EarlyView.
Lithium‐sulfur (Li‐S) batteries contain various NMR‐active nuclear isotopes, including 7Li, 6Li and 33S, which are sensitive to the different chemical reactions that occur during battery cycling. Herein, we use a combination of lithium and sulfur operando NMR spectroscopy to provide new insights at the molecular level, fundamental understanding being ...
Jana B. Fritzke, Sunita Dey, Christopher A. O’ Keefe, Jeongjae Lee, Kazuhiro Kamiguchi, Daisuke Mori, Yuri Nakayama, Clare P. Grey   +7 more
wiley   +1 more source

Copper(II), a Peculiar Metal Ion for Complexation With Monensin A Ionophore. [PDF]

Chemistry
Kis ML, Hajdu B, Jakusch T, Kele Z, Dorkov P, Kukeva R, Pantcheva I, Gyurcsik B.   +7 more
europepmc   +1 more source

Minimal ATP‐Independent N2‐Reducing Systems Defined by L‐Cluster‐Bound Nitrogenase Assembly Platforms

Angewandte Chemie, EarlyView.
Association of the L‐cluster with the nitrogenase assembly proteins NifEN (NifENL) or NifB (NifBL) intrinsically endows these proteins with N2‐reducing activity, enabling in vitro N2‐reduction by NifENL and NifBL when supplied with chemical reductants or photoexcited quantum dots while supporting in vivo N2‐fixation in NifENL‐ and NifENL‐expressing ...
Robert Quechol, Yimo Yang, Chi Chung Lee, Markus W. Ribbe, Yilin Hu   +4 more
wiley   +1 more source

Engineering Nanoemulsions to Maximize NIR‐II Fluorescence and Preserve Photothermal Performance of a Novel Boron Difluoride Formazanate Dye

Angewandte Chemie, EarlyView.
An oil‐in‐water nanoemulsion transforms a boron difluoride formazanate (BDF) dye into a dual‐modal imaging‐guided theranostic agent (BDF‐NE). Its nonpolar oil core maximizes NIR‐II fluorescence while maintaining strong photoacoustic contrast to guide photothermal therapy with high photostability and 66.8% photothermal conversion efficiency, achieving ...
Nahyun Kwon, Francis L. Buguis, Theo Husby, Suhjung Chun, Dongling Zhang, Jiaze Wu, Benjamin Rehl, Binbing Ling, Umar Iqbal, Melissa Washington, Angie Verner, Kai Huang, Juan Chen, Joe B. Gilroy, Gang Zheng   +14 more
wiley   +1 more source

In vivo dynamic nuclear polarization magnetic resonance imaging reveals cardiac mitochondrial redox imbalance as an early indicator of heart failure. [PDF]

Redox Biol
Ichihashi K, Hyodo F, Elsayed Elhelaly A, Tomita H, Shiromizu S, Fujimoto K, Imai H, Noda Y, Kato H, Hara A, Matsuo M.   +10 more
europepmc   +1 more source

From [NHC─H]• to Persistent σ‐Complex Radicals: Photoinduced Radical Chemistry of Imidazolium Salts

Angewandte Chemie, EarlyView.
Visible‐light excitation of electron donor–acceptor (EDA) complexes between imidazolium salts and triarylamines enables controlled single‐electron transfer (SET) and reveals a family of carbene‐centered σ‐complex radical cations. Cryogenic electron paramagnetic resonance (EPR) captures the elusive [NHC─H]• intermediate and its thermal evolution into ...
Filipp M. Kolomeychuk, Lars J. C. van der Zee, Simon Mathew, Bas de Bruin, J. Chris Slootweg   +4 more
wiley   +1 more source