Results 111 to 120 of about 29,373 (276)

Controlled Optically Active Hierarchical Nanostructures of Side‐Chain Sequence‐Regulated Graphene Nanoribbons

Advanced Science, EarlyView.
The restrained side‐chain accessibility and versatility of GNRs extremely impede their multifunctionality, solution processability, and numerous solution‐based applications. We report herein a robust liquid‐phase bottom‐up synthesis approach for high‐efficiency preparation of side‐chain sequence‐regulated functional GNRs.
Baiyang Chen, Kaiyuan Song, Li Yu, Lujia You, Yiming Wang, Zhaoguo Zhang, Yongfeng Zhou, Xinyuan Zhu, Ruijiao Dong   +8 more
wiley   +1 more source

Heterogeneous organophotocatalytic HBr oxidation coupled with oxygen reduction for boosting bromination of arenes

Nature Communications
Developing mild photocatalytic bromination strategies using sustainable bromo source has been attracting intense interests, but there is still much room for improvement.
Jie Wang, Jiahao Liang, Hao Hou, Wei Liu, Hongru Wu, Hongli Sun, Wei Ou, Chenliang Su, Bin Liu   +8 more
doaj   +1 more source

The effect of bromination of carbon fibers on the coefficient of thermal expansion of graphite fiber-epoxy composites [PDF]

To examine the effect of bromination of carbon fibers on the coefficient of thermal expansion (CTE) of carbon fiber epoxy composites, several pristine and brominated carbon fiber-epoxy composite samples were subjected to thermomechanical analysis.
Jaworske, D. A., Maciag, C.
core   +1 more source

ESCRT‐Mimetic Nanodegrader Targets STING for Anti‐Inflammatory Therapy

Advanced Science, EarlyView.
A nanoplatform‐enabled targeted protein degradation strategy is presented to regulate aberrant STING signaling. STING‐ATTEC induces selective autophagic degradation of STING via formation of a STING–ATTEC–LC3 ternary complex, while the cationic FA‐LNP+ system enhances LC3 generation and targeted delivery. Together, this synergistic approach efficiently
Fuyuan Zhou, Qiming Zhai, Zhihao Yao, Qing Li, Yan Yang, Si Wang, Chao Huang, Liangjing Xin, Tao Chen, Jinlin Song   +9 more
wiley   +1 more source

Bromination of bis(pyridin-2-yl) diselenide in methylene chloride: the reaction mechanism and crystal structures of 1H-pyridine-2-selenenyl dibromide and its cycloadduct with cyclopentene (3aSR,9aRS)-2,3,3a,9a-tetrahydro-1H-cyclopenta[4,5][1,3]selenazolo[3,2-a]pyridinium bromide

Acta Crystallographica Section E: Crystallographic Communications, 2019
1H-Pyridine-2-selenenyl dibromide, C5H5NSeBr2, 1, is a product of the bromination of bis(pyridin-2-yl) diselenide in methylene chloride recrystallization from methanol.
Zhanna V. Matsulevich, Julia M. Lukiyanova, Vladimir I. Naumov, Galina N. Borisova, Vladimir K. Osmanov, Alexander V. Borisov, Maria M. Grishina, Victor N. Khrustalev   +7 more
doaj   +1 more source

Albumin‐Bound STING Agonist Reprograms HSPCs to Antitumor Neutrophils Enhancing CD8+ T Cell Immunity

Advanced Science, EarlyView.
This study demonstrates that an albumin‐bound STING agonist (Nano ZSA‐51D) reprograms HSPCs to produce antitumor neutrophils with enhanced MHC I–mediated CD8+ T cell activation, thereby sensitizing tumors to α‐PD1 therapy. These findings highlight a strategy to target early hematopoiesis for shaping neutrophil fate and potentiating cancer immunotherapy.
Jinsong Tao, Hong‐Yi Zhao, Chengyi Li, Hanning Wen, Fang Ke, Qiuxia Li, Miao He, Bo Wen, Zhongwei Liu, Kai Sun, Wei Gao, Duxin Sun   +11 more
wiley   +1 more source

Ion Crowding Effect in Unilaterally Downsized Perovskite Memristors

Advanced Science, EarlyView.
The downscaling of perovskite memristors incorporating monocrystalline nanoplates is accompanied by an ion crowding effect, which greatly enhances the local electric field in the vicinity of electrode. The highly controlled crowding of anions and vacancies results in anisotropic switching characteristics as well as unique morphology modification ...
Conghui Tan, Meiqi An, Weili Liu, Haotian Wang, Shuai Yang, Jing Li, Jianliang Li, Yingmin Luo, Chao Wang, Jiao Xu, Yaodan Chi, Yiming Yang   +11 more
wiley   +1 more source

Hydrophilic Janus Micelles From an ABC Triblock Copolymer

Angewandte Chemie, EarlyView.
An amphiphilic triblock copolymer with poly(ethylene glycol) (PEG) and poly(N‐vinylpyrrolidone) (PVP) coronas self‐assembles into spherical micelles with Janus‐type surface segregation in water. Cryo‐TEM, enabled by selective PVP labeling, and 1H‐NOESY NMR reveal phase separation.
José Muñoz‐López, Lei Hu, Hui Wang, Xiaohe Tian, Lorena Ruiz‐Pérez, Giuseppe Battaglia   +5 more
wiley   +2 more sources

Artificial Intelligence Predictions in Huge Chemical Spaces: Chiroptical Properties of [6]‐helicene Family

Advanced Science, EarlyView.
This study shows that a local, data‐driven AI model can accurately predict diverse optical and chiroptical properties of [6]helicenes using information from close structural neighbours. Combined with genetic algorithms, it enables inverse design for tailored properties, establishing practical structure–property rules for efficient molecular discovery ...
Rafael G. Uceda, Sandra Míguez‐Lago, Carlos M. Cruz, Boris Pérez‐Cañedo, Alfonso Gijón, Luis Álvarez de Cienfuegos, Antonio J. Mota, Delia Miguel, Juan M. Cuerva   +8 more
wiley   +1 more source

Aminal‐linked Covalent Organic Frameworks for Light Energy Upconversion

Angewandte Chemie, EarlyView.
Aminal‐linked covalent organic frameworks incorporating anthracene units are introduced as solid‐state platforms for triplet–triplet annihilation upconversion. The crystalline materials retain chromophore electronic properties and exhibit fluorescence quantum yields of up to 40%.
Mateusz Brzeziński, Agata Tyszka‐Gumkowska, Aleksander Gorski, Marek J. Potrzebowski, Tomasz Polczyk, Wojciech Wegner, Sylwester Gawinkowski, Jakub Ostapko   +7 more
wiley   +2 more sources