Results 81 to 90 of about 60,159 (283)

Metal-Free Aziridination of Unactivated Olefins via Transient N-Pyridinium Iminoiodinanes [PDF]

We describe a metal-free aziridination of unactivated olefins to generate N-pyridinium aziridines, which participate in cross-coupling to afford N-aryl aziridines and reductive depyridylation to afford N–H aziridines.
Isaac, Deavenport, Hao, Tan, David, Powers, Cali, Kucifer, Phong, Thai, Uddalak , Sengupta   +5 more
core   +2 more sources

Precision Oncology via Radiotherapy‐Triggered Drug Delivery: Mechanisms, Molecular Engineering, and Clinical Translation

Advanced Science, EarlyView.
This review redefines radiotherapy‐triggered drug delivery systems through structural disassembly and molecular actuation, proposing a translation‐oriented framework for dose‐correlated activation to advance clinically integrated precision oncology. ABSTRACT Radiotherapy‐triggered drug delivery systems (RDDS) promise to integrate the spatial precision ...
Jianv Jiang, Tanfeng Zhang, Junliang Dong, Wenjing Sun   +3 more
wiley   +1 more source

Self‐Assembled Pt(II) Complexes Boost Up Stem Cell Proliferation and Accelerate Metamorphosis in Living Organisms

Angewandte Chemie, EarlyView.
Pt1, an organometallic platinum‐based complex, act as a modulator of redox homeostasis in cnidarians, regulating cellular functions and life‐cycle dynamics. In Nematostella vectensis, it mitigates oxidative stress, strengthens detox systems and accelerates development.
Giuseppina Tommasini, Tania Pecoraro, Anna Lewinska, Maciej Wnuk, Olga Kolodziej, Daniela Intartaglia, Simona Morgera, Alessandro Aliprandi, Giulia Veronesi, Giorgio Facchetti, Isabella Rimoldi, Angela Tino, Claudia Tortiglione, Luisa De Cola   +13 more
wiley   +2 more sources

Supramolecular Allostery Achieves Tunable Luminescence Aromatic Bridged Phenothiazine Noncovalent Frameworks

Advanced Science, EarlyView.
Tunable luminescent supramolecular organic framework enabled by multiple allosteric effects, composed of a tetracation vinylphenylpyridinium‐modified aromatic‐bridged phenothiazine guest and cucurbit[8]uril, not only exhibits unique guest oxidation‐driven NIR luminescence blue‐shift and effectively enhances the quantum yield by 46‐fold to 22.2% but ...
Xinping Lu, Jianchong Chen, Jie Yu
wiley   +1 more source

Theranostic Potential of an NAD(P)H‐Activatable Fluorophore: Assessing Cancer Aggressiveness and Triggering Apoptosis

Angewandte Chemie, EarlyView.
DE‐CQ, an NAD(P)H‐activatable theranostic probe, enables the quantification of cancer aggressiveness via glucose‐stimulated fluorescence imaging and selectively induces apoptosis. Its multifaceted efficacy is demonstrated across 2D cells, 3D spheroids, and in vivo models.
Yujin Cha, Taehoon Oh, Hui Joo Kim, Minju Kang, Shin A Yoon, Yul Lee, Yeon‐Ju Lee, Sun Young Park, Dong‐Sik Shin, Sung‐Kyun Ko, Jiyou Han, Min Hee Lee   +11 more
wiley   +2 more sources

Environmental Effects on RRAM Cells Based on 2D Halide Perovskite Materials

Advanced Electronic Materials, EarlyView.
RRAM offers high speed, scalability, and low power, positioning it as a next‐generation non‐volatile memory. Two‐dimensional halide perovskites show promise due to tunable optoelectronic properties and flexible processing but suffer from environmental sensitivity. This review examines degradation from humidity, temperature, light, and strain, discusses
Mojtaba Joodaki, Babitha Arun, Hartmut Hillmer, Chih‐Chieh Hsu   +3 more
wiley   +1 more source

Pyridinium ylids in heterocyclic synthesis

, 2011
Pyridinium ylids are versatile tools in organic synthesis. The stability of pyridinium ylids and their generation is commented. This review gives an overview of the possible modes through which pyridinium ylids can react.
Jan Jacobs, Eva Van Hende, De Kimpe, Norbert, Sven Claessens, Van Hende, Eva, Norbert De Kimpe, Jacobs, Jan, Claessens, Sven   +7 more
core   +1 more source

Comparative photodynamic inactivation of bioluminescent E. coli by pyridinium and inverted pyridinium chlorins [PDF]

, 2020
Photodynamic inactivation (PDI) is a therapeutic approach in study due to the ability to reduce or completely eliminate the bacterial strains without the development of resistance mechanisms.
Lourenço, Leandro M.O., Calmeiro, Joana M.D., Almeida, Adelaide, Dias, Cristina J., Ramos, Catarina I.V., Tomé, João P.C., Faustino, Maria A.F.   +6 more
core   +1 more source

Structure and Spectroscopic Characterisation of Phenanthroline‐Based Iodobismuthate(III) Complexes Utilised for Raw Acoustic Signal Classification

Advanced Intelligent Discovery, EarlyView.
Memristors based on trimethylsulfonium (phenanthroline)tetraiodobismuthate have been utilised as a nonlinear node in a delayed feedback reservoir. This system allowed an efficient classification of acoustic signals, namely differentiation of vocalisation of the brushtail possum (Trichosurus vulpecula).
Ewelina Cechosz, Gisya Abdi, Andrzej Sławek, Marlena Gryl, Konrad Szaciłowski   +4 more
wiley   +1 more source

Crystal structure of 4,4′-[(1,3,5,7-tetraoxo-1,3,3a,4,4a,5,7,7a,8,8a-decahydro-4,8-ethenopyrrolo[3,4-f]isoindole-2,6-diyl)bis(methylene)]bis(pyridin-1-ium) dinitrate

Acta Crystallographica Section E: Crystallographic Communications, 2015
In the title salt, C24H22N4O42+·2NO3−, the cation is U-shaped with the two isoindole dione rings inclined to one another by 60.41 (13)°, while the two outer pyridine rings are inclined to one another by 2.77 (12)°.
Zhimin Liu
doaj   +1 more source