Results 61 to 70 of about 40,605 (259)

Impact of Threading State on the Mechanics of γ‐Cyclodextrin–Pyrene Gels

Angewandte Chemie, EarlyView.
Tuning the threading state of discrete γ‐cyclodextrin (γ‐CD)–pyrene pseudorotaxane crosslinkers controls gel topology and ring mobility. The resulting doubly threaded slide‐ring networks exhibit solvent‐switchable dissipative dynamics, high extensibility, rate‐dependent mechanics, and low hysteresis, revealing how crosslink topology governs macroscopic
Jongwon Oh, Heyi Liang, Natsumi Nitta, Jongmin Kim, Yuan Tian, Guancen Liu, Jerald E. Hertzog, Juan J. de Pablo, Stuart J. Rowan   +8 more
wiley   +2 more sources

The Effects and Toxicity of Different Pyrene Concentrations on Escherichia coli Using Transcriptomic Analysis

Microorganisms
Pyrene is a pollutant in the environment and affects the health of living organisms. It is important to understand microbial-mediated pyrene resistance and the related molecular mechanisms due to its toxicity and biodegradability.
Han Zhu, Linfeng Gong, Ruicheng Wang, Zongze Shao   +3 more
doaj   +1 more source

Pyrene-Fullerene C60 Dyads as Light-Harvesting Antennas

Molecules, 2013
A series of pyrene-fullerene C60 dyads bearing pyrene units (PyFC12, PyFPy, Py2FC12 and PyFN) were synthesized and characterized. Their optical properties were studied by absorption and fluorescence spectroscopies. Dyads were designed in this way because
Gerardo Zaragoza-Galán, Jesús Ortíz-Palacios, Bianca X. Valderrama, Alejandro A. Camacho-Dávila, David Chávez-Flores, Víctor H. Ramos-Sánchez, Ernesto Rivera   +6 more
doaj   +1 more source

Polarization Engineering in Vinylene‐Linked COFs Toward Efficient Neuromorphic Computing

Advanced Science, EarlyView.
A vinyl‐linked covalent organic framework (COF‐DIBPY) was synthesized on a conductive substrate for memristor applications. Redox reactions and bromide migration enable low‐voltage (0.5V) conductance switching with high analog on/off ratio (15.7). The device was further integrated into a speech emotion recognition system for acoustic simulation and ...
Hao Wang, Lei Zhao, Haoyuan Yao, Qiongshan Zhang, Fuzhen Xuan, Bin Zhang   +5 more
wiley   +1 more source

Diversity‐Oriented Two‐Step Annulative π‐Extension Enables Access to Structurally Complex Nanographenes

Angewandte Chemie, EarlyView.
Pd‐catalyzed C–H arylation of polycyclic aromatic hydrocarbons (PAHs) with various aryltrimethylsilanes enables the preparation of structurally complicated arylated PAHs, which can be further transformed to nanographenes in a manner of two‐step annulative π‐extension (APEX) reaction.
Honami Katsuragawa, Yoshifumi Toyama, Shota Mikawa, Kou P. Kawahara, Hideto Ito, Kenichiro Itami   +5 more
wiley   +2 more sources

Single/joint effects of pyrene and heavy metals in contaminated soils on the growth and physiological response of maize (Zea mays L.)

Frontiers in Plant Science
The widespread presence of polycyclic aromatic hydrocarbons (PAHs) and toxic heavy metals in soils is having harmful effects on food crops and the environment. However, the defense mechanisms and capacity of plants to counteract these substances have not
Yuhui Wang, Muhammad A. Imran, Muhammad A. Imran, Juanjuan Zhao, Muhammad Sultan, Manjie Li, Manjie Li   +6 more
doaj   +1 more source

The Plant‐to‐Plant Circular Strategy: Coupling Photodegradation and Phytoremediation With Plant‐Based Nanomaterials for Plastic Degradation

Advanced Science, EarlyView.
Plant‐based nanomaterials derived from alfalfa serve as dual‐function catalysts, coupling photodegradation and phytoremediation to degrade polyethylene under UV‐A light and in soil. The nanomaterials work synergistically with alfalfa and soil microbes, achieving efficient plastic breakdown without trophic transfer.
Haoran Liu, Lena Ciric, Yuheng Wang, Ziru Pei, Manpreet Bhatti   +4 more
wiley   +1 more source

Acetylene Semi‐Hydrogenation by Photocatalysis

Angewandte Chemie, EarlyView.
Photocatalytic acetylene semi‐hydrogenation is an emerging light‐driven route to polymer‐grade ethylene, offering a mild alternative to energy‐intensive thermocatalysis. By replacing H2 co‐feed with water or other proton sources, these systems can achieve high selectivity under ambient conditions.
Anna Fortunato, Brando Adranno, Sharon Silloni, Marianna Barbieri, Claudia Masia, Francesca Arcudi, Luka Đorđević   +6 more
wiley   +2 more sources

Nano Proton Scavengers Modulate Endosomal pH to Inhibit Microglial Activation and Enhance Stroke Recovery

Advanced Science, EarlyView.
Amphiphilic sulfonated chitosan nanoparticles buffer endo/lysosomal acidity in microglia by limiting V‐ATPase membrane recruitment and restoring endosomal homeostasis. Following systemic administration, they accumulate in the ischemic hemisphere partly through association with infiltrating immune cells, suppress TLR3/IRF3 and TLR4/NF‐κB signaling ...
Xuanlin Wang, Yujing Shi, Zehua Gao, Jing Wang, Changsheng Liu   +4 more
wiley   +1 more source

Interpretable Deep Learning of Molecule‐Solvent Interactions Using a Solvatochromic Subgroup Contribution Framework

Advanced Science, EarlyView.
Chemistry‐informed deep learning (DL) models based on the solvatochromic subgroup contribution (SSC) framework predict and interpret solvent‐dependent spectral shifts, revealing physically meaningful subgroup‐solvent interactions. ABSTRACT Solvent effects critically influence the photophysical and optical properties of molecules in solution, yet a ...
Jinyong Park, Minhi Han, Kiwoong Lee, Seokwoo Kim, Sungnam Park   +4 more
wiley   +1 more source