Results 51 to 60 of about 40,605 (259)

Regioselective π‐Extension of Helical PAHs: Tuning Energy Gaps and Excited‐State Dynamics Directed by Clar's Sextet Migration

Advanced Optical Materials, EarlyView.
Central and terminal ring fusions of per‐peri‐perbenzo[7]helicene (PB[7]H) yield novel helical polycyclic aromatic hydrocarbons (HPAHs). The migration of Clar's aromatic sextets governs the inner‐rim stiffness. This topology‐directed strategy bridges the discrete optical gaps of homologous series. Transition moment density (TMD) analysis visualizes the
Zhibo Liu, Zheng Zhang, Hikaru Sotome, Takashi Hirose   +3 more
wiley   +1 more source

One‐Step Preparation of Lanthanide‐Doped Polyurea Multicolor Microspheres for Versatile Fluorescent Applications

Advanced Science, EarlyView.
Lanthanide‐doped polyurea microspheres are prepared via a facile one‐step precipitation polymerization. They exhibit strong hydrogen‐bonding and coordination interactions with excellent properties, including multicolor emission, high quantum yield (75.3%), remarkable stability, redispersibility, and biocompatibility.
Guiyu Zhang, Xiaoxia Yu, Xinhui Wang, Xiang Zheng Kong, Xiangling Gu, Jitao Liu, Shusheng Li, Xiaoli Zhu, Lianbao Cao, Xubao Jiang   +9 more
wiley   +1 more source

Unveiling Activation Process of C═N Cathode for High‐Performing Zinc‐Organic Batteries

Advanced Science, EarlyView.
A high‐performance organic cathode of DPPT has been designed for aqueous zinc‐ion batteries (ZIBs), showing ultralong cycle life of 45 000 cycles. Besides, flexible DPPT ZIBs with stable capacity are applied in wearable NH3 sensors. Notably, the activation mechanism of the transformation of DPPT‐eight proton into DPPT is proposed and proved which ...
Xiaodong Geng, Zhangyu Wang, Weiyao Bi, Qian Zhao, Hongting Ma, Kai Yang, Ying Liu, Zhiqian Li, Qinghua Deng, Dan Zhao, Yuqian Jiang, Nan Zhu   +11 more
wiley   +1 more source

A Bright Ratiometric Dipyrene Probe for Functional Imaging of Condensate Microenvironments in Living Cells

Advanced Science, EarlyView.
Ratiometric dipyrene imaging resolves monomer (M) and excimer (E) channels and computes pixel‐wise E/M maps within biomolecular condensates, yielding physicochemical fingerprints shaped by coupled polarity‐related solvation and microviscosity. These spatial fingerprints enable quantitative phenotyping of cellular states, exemplified by separation of ...
Koki Matsumoto, Sora Kitai, Yoshio Nishiyama, Shogo Amemori, Kei Makiyama, Dini Kurnia Ikliptikawati, Kentaro Ohira, Yuta Kozuka, Maho Tobita, Shih‐Cheng Chen, Chien‐Hung Yu, Wei‐Min Liu, De‐Chen Lin, Motohiro Mizuno, Kazuma Ogawa, Koichi Ogami, Kenji Takahashi, Hiroshi I. Suzuki, Richard W. Wong, Takahiro Soeta, Masaharu Hazawa   +20 more
wiley   +1 more source

Time Resolved DNA Barcodes for Information Encoding and Dynamic Encryption

Advanced Science, EarlyView.
This study establishes a molecular information platform based on DNA Temporal Barcodes. Information is encoded through combinations of DNA tags with distinct retention times, while dynamic encryption is achieved through a key‐triggered DNA ligation.
Likang Chu, Haixia Wang, Haiyan Gao, Sixian Chen, Zilong Li, Zhanyihao Hao, Lei He, Da Han   +7 more
wiley   +1 more source

Dispersion‐Clamped Crystalline Supramolecular Columnar π‐Stacks of Adamantyl‐Substituted Pyrenes

Angewandte Chemie, EarlyView.
Can neutral hydrocarbon π‐systems be forced into perfectly aligned cofacial stacks in crystals? An adamantyl‐decorated pyrene derivative crystallizes into rare translationally zero‐offset π‐columns, producing a short π–π distance below 3.3 Å and a large color shift arising from frontier crystal orbital (FCO) formation. ABSTRACT Despite their importance
Kazutaka Shoyama
wiley   +2 more sources

A Modular Standard Operating Procedure for Standardizing Lithium Metal Interfaces

Advanced Science, EarlyView.
A modular standard operating procedure (SOP) is developed to standardize lithium metal interfaces through sequential etching, brushing, and soaking. By transforming poorly controlled lithium surfaces into chemically uniform and structurally regulated interfaces, the framework improves electrochemical reproducibility, interfacial stability, and ...
Wen‐Hsin Chang, Anlin Shaju, Han‐Shiuan Lin, Sih‐Ling Hsu, Quang Huy Dinh, Che‐Ning Yeh, Elise Yu‐Tzu Li, Yu‐Sheng Su   +7 more
wiley   +1 more source

Surface photochemistry: Photodegradation study of pyrene adsorbed onto microcrystalline cellulose and silica

International Journal of Photoenergy, 2004
Ground-state diffuse reflectance, time resolved laser-induced luminescence, diffuse reflectance laser flash-photolysis transient absorption and chromatographic techniques were used to elucidate the photodegradation processes of pyrene adsorbed onto ...
A. S. Oliveira, L. F. Vieira Ferreira, J. P. Da Silva, J. C. Moreira   +3 more
doaj   +1 more source

Syntheses of Pyrene-4,5-dione and Pyrene-4,5,9,10-tetraone

The Journal of Organic Chemistry
Improved gram scale synthesis procedures for the preparation of pyrene-4,5-dione and pyrene-4,5,9,10-tetraone are reported. Pyrene-4,5-dione has been synthesized using potassium persulfate as the oxidant and RuO2·nH2O as the catalyst in the biphasic CH2Cl2/H2O solvent mixture containing K2CO3 as the base.
Omolola Balogun, Besan Khader, Tetyana Ignatova, Aleksandrs Prokofjevs   +3 more
openaire   +3 more sources

A Phosphorylation‐Induced Micellization Switch in the Low‐Complexity Domain of TDP‐43

Advanced Science, EarlyView.
Phosphorylation of TAR DNA‐binding protein's 43 kDa (TDP‐43) low‐complexity domain by casein kinase 1 delta (CK1δ) acts as a molecular switch, redirecting its self‐assembly from macroscopic phase separation toward finite‐sized, spherical block‐copolymer micelles of ∼30 nm.
Rodrigo F. Dillenburg, Anastasia Lopatina, Hao Ruan, Tom Scheidt, Simone Mosna, Emre Pekbilir, Julia Bieber, Frank Schäfer‐Depoix, Katharina Landfester, Carla Schmidt, Martin M. Möckel, Svenja Morsbach, Friederike Schmid, Dorothee Dormann, Lukas Stelzl, Martin Girard, Edward A. Lemke   +16 more
wiley   +1 more source