Results 131 to 140 of about 100,188 (300)

Coupled Electronic and Ionic Conductivity in Strain‐Stiffening Hydrogels

Advanced Science, EarlyView.
A soft PVA–PABA hydrogel is developed that couples tissue‐like strain‐stiffening mechanics with dual ionic–electronic conduction. Dynamic boronic crosslinks enable self‐assembled percolative pathways, producing deformation‐responsive resistance with a stabilization plateau at stiffening onset, revealing alignment‐assisted charge transport and advancing
Md Al Raihan, Mark M. A. Mikhail, Khaled M. Hijazi, Hessameddin Yaghoobi, John P. Frampton, Vahid Adibnia, Michael S. Freund   +6 more
wiley   +1 more source

Incorporation of Organic Counter‐Cations Into Poly(Heptazine Imide) Networks for Promoting Proton‐Coupled Electron Transfer During Photocatalytic H2O2 Evolution

Angewandte Chemie, EarlyView.
Incorporation of N‐based onium ions into the ionic framework of poly(heptazine imide) was obtained via protonation‐deprotonation of PHI frameworks arising from a parent Na‐containing analogue. Particularly, methylammonium moieties, through their small molecular size, hydrogen bonding capabilities and rotational mobility, appear to stabilize ...
Dingqiao Ji, Hikmat Binyaminov, Desiree Leistenschneider, Martin Oschatz, Paolo Giusto, Markus Antonietti, Horațiu Szalad   +6 more
wiley   +2 more sources

Mesoporous Catalytic‐Adsorptive Nanoregulator Orchestrates Biofilm eDNA/LPS Disassembly and TLR9/TLR4 Immune Reprogramming to Resolve Diabetic Foot Infections

Advanced Science, EarlyView.
Chronic diabetic wounds are hindered by a “dual trap” of biofilm resistance and hyperinflammation. A mesoporous catalytic‐adsorptive nano‐regulator is developed to dismantle this barrier through simultaneous eDNA degradation and LPS sequestration. By silencing TLR4/9‐mediated signaling, the platform clears resilient pathogens and reprograms the immune ...
Junfeng Song, Yang Song, Xirui Huang, Xingjin Li, Lifei Gao, Yixiang Wang, Tianbao Zhu, Xiaomin Li, Shuai Wang, Tiancong Zhao, Dongyuan Zhao   +10 more
wiley   +1 more source

π‐Enlargement in Porphyrin Macrocycles at Interfaces

Angewandte Chemie, EarlyView.
On‐surface synthesis of a 20‐π free‐base expanded porphyrin, by depositing onto a hot Ag(111) substrate an 18‐π free‐base precursor equipped with ‐CF3 functional groups ABSTRACT Porphyrins are essential heteroatomic macrocycles, fundamental to both biological systems and advanced technology.
Ana Barragán, Elena Pérez‐Elvira, Alba García‐Frutos, Diego J. Vicent, Pingo Mutombo, Koen Lauwaet, José M. Gallego, Rodolfo Miranda, José I. Urgel, Aurelio Gallardo, Nazario Martín, David Écija   +11 more
wiley   +2 more sources

Integrating Plant Traits into Photosynthetic Efficiency Models Paves the Way for Accurate Estimates of Global Vegetation Productivity

Journal of Remote Sensing
Recently, Yan et al.’s study revealed that approximately 60% of the global spatiotemporal variance in terrestrial photosynthetic efficiency remains unexplained by climatic drivers alone.
Xiaojin Qian, Liangyun Liu
doaj   +1 more source

Organic Photoelectrochemical Cells Beyond Performance: Interface and Catalyst Engineering for Durability

Advanced Energy Materials, EarlyView.
Organic photoelectrochemical cells based on π‐conjugated semiconductors offer a versatile platform for solar fuel generation. This review outlines operating principles, device architectures, and key metrics, and highlights advances in p‐ and n‐type photoelectrodes, interfacial engineering, and catalyst integration.
Jaehyeong Kim, Jung Min Ha, Yeonjeong Lee, Seung Won Oh, Wangyeon Lee, Munsu Kwon, Soonyong Lee, Jin Young Kim, Han Young Woo   +8 more
wiley   +1 more source

Supramolecular Modulation of Photoinduced Charge Transfer: Tuning Between Tunneling and Incoherent Hopping

Angewandte Chemie, EarlyView.
Molecular recognition guest binding can comprehensively modulate photoinduced charge‐transfer dynamics in the cyclophane host, including charge separation and recombination, via coherent superexchange and incoherent hopping. Unlike covalent donor–bridge–acceptor systems, this supramolecular approach avoids tedious syntheses and offers precise tuning of
Xueze Zhao, Guangcheng Wu, Chun Tang, Georgia C. Mantel, Bai‐Tong Liu, Yi‐Kang Xing, Han Han, Shuai Fang, Charlotte L. Stern, J. Fraser Stoddart, Michael R. Wasielewski, Ryan M. Young   +11 more
wiley   +2 more sources

Photosynthetic responses of sugarcane leaves and gross photosynthetic efficiency of the crop

, 1981
The gross photosynthetic efficiency of the sugarcane crop (Saccharum officinarum L.) is defined by the ratio of the daily value for gross photosynthesis of the crop (PB) to the active radiation absorbed daily by the crop. PB is estimated by the combination of leaf photosynthetic response, leaf irradiance and foliage structure.
Varlet-Grancher, Claude, Bonhomme, Raymond, Chartier, Michel, Artis, Philippe   +3 more
openaire   +1 more source

Inverted-region electron transfer as a mechanism for enhancing photosynthetic solar energy conversion efficiency

, 2017
Significance Inverted-region electron transfer is widely suggested to be an important mechanism contributing to photosynthetic efficiency.
Hiroki Makita, Gary Hastings
core   +1 more source

On the Economics of US Agricultural Policy

Applied Economic Perspectives and Policy, EarlyView.
ABSTRACT This paper presents an economic analysis of US agricultural policy, building on a modified version of Gardner's efficient redistribution. We argue that agricultural policy is motivated as an attempt to implement an efficient redistribution scheme that redistributes income toward farmers who, as a group, have been adversely affected by ...
Jean‐Paul Chavas
wiley   +1 more source