Results 121 to 130 of about 16,511 (251)

A Free N‐Heterocyclic Carbene and Its Metal Complex

Angewandte Chemie, Volume 138, Issue 19, 4 May 2026.
Free N‐heterocyclic carbenes (NHCs) are directly visualized on ultrathin sodium‐chloride films on gold (NaCl/Au(111)) using scanning tunneling microscopy (STM), atomic force microscopy (AFM), and density functional theory (DFT). Submolecular imaging reveals their structure and frontier orbital.
Ankita Das, Tzu‐Chao Hung, Andreas Rank, Felix Giselbrecht, Jonas Schön, Mowpriya Das, Nikos Doltsinis, Saeed Amirjalayer, Jascha Repp, Frank Glorius   +9 more
wiley   +2 more sources

Defect Passivation via Plasma Modification of Lead Halide Perovskite Thin Films

Progress in Photovoltaics: Research and Applications, EarlyView.
We demonstrate that exposure of perovskite thin films to diffuse coplanar surface barrier discharge nitrogen plasma leads to an increase in photoluminescence, attributed to reduced defect densities. This results in implied open‐circuit voltage improvement of up to 80 mV and finalized solar cell open‐circuit gains up to 60 mV.
Ales Vlk, Robert Hlavac, Lucie Landova, Mykhailo Khytko, Swarnendu Banerjee, Julius Vida, Jiří Fujera, Mostafa Othman, Aïcha Hessler‐Wyser, Christophe Ballif, Christian Wolff, Tomas Homola, Martin Ledinsky   +12 more
wiley   +1 more source

Redox‐Mediated Stabilization of the Hole Transport Layer and Buried Interface Toward Stable Perovskite Solar Cells

Angewandte Chemie, Volume 138, Issue 19, 4 May 2026.
A facile and effective strategy, that is, synergistic regulation of the NiOx/SAM buried interface via cesium oxalate (CsOA) modification, is developed. The CsOA treatment suppresses detrimental Ni4+ formation, promotes uniform SAM assembly, and aligns the energy levels at the hole‐transport layer/perovskite interface, enabling improved film ...
Jiarong Wang, Yiran Yan, Chenyue Wang, Qiang Fu, Leyu Bi, Yuanzhong Liu, Xin Yang, Jia Wang, Zhenye Liang, Lin Yang, Tianjiao Chu, Xiangrong Zhu, Bin Kan, Lina Li, Xingyu Gao, Linfeng Lu, Xiaofei Ji   +16 more
wiley   +2 more sources

Surface Modification of Heterojunction with Intrinsic Thin Layer Solar Cell Electrode with Organosilane

Micromachines
Solar cell (SC) technologies, which are essential in the transition toward sustainable energy, utilize photovoltaic cells to convert solar energy into electricity.
Bing-Mau Chen, Chih-Hung Chen, Shang-Ping Ying   +2 more
doaj   +1 more source

Ultrasensitive MicroRNA Detection Combining Reduced Graphene Oxide Electrolyte‐Gated Transistors and Machine Learning

Small, EarlyView.
We developed an ultrasensitive and highly selective biosensor by integrating bio‐functionalized reduced graphene oxide (rGO) electrolyte‐gated transistors (EGTs) and machine learning (ML) to detect miRNAs (miR‐34a, miR‐34b, and miR‐34c) associated with cancer and neurological disorders.
Ana Vitória Ferreira Deleigo, Gabrielle Coelho Lelis, Maria Luisa Braunger, Stefano Casalini, Yasmin Watanabe, Gabriel Ravanhani Schleder, Wilson Tiago Fonseca, Rafael Furlan de Oliveira   +7 more
wiley   +1 more source

Selective contact self-assembled molecules for high-performance perovskite solar cells

eScience
This review provides a comprehensive overview of the utilization of self-assembled monolayers (SAMs) in perovskite solar cells (PSCs), with a specific focus on their potential as hole transport layers (HTLs).
Huan Bi, Jiaqi Liu, Liang Wang, Tuo Liu, Zheng Zhang, Qing Shen, Shuzi Hayase   +6 more
doaj   +1 more source

An impedance investigation of corrosion protection of copper by self-assembled monolayers of alkanethiols in aqueous solution [PDF]

Journal of the Serbian Chemical Society, 2004
Self-assembled monolayers (SAMs) of three n-alkanethiols, 1-octadecanethiol (C18SH), 1-dodecanethiol (C12SH), and 1-hexanethiol (C6SH), were formed on fresh, oxide-free copper surfaces obtained by HNO3 etching.
SHENHAO CHEN, YONGLI JIAO, GUIYAN LI, HOUYI MA   +3 more
doaj  

SERS‐Based Nano‐ and Microsystems Toward Biomedical Applications

Small, EarlyView.
This review provides a current overview of nano‐ and microscale SERS‐based devices, encompassing all aspects from material design to practical applications. We highlight controlled SERS‐active architectures, including patterned substrates, nanorods, microspheres, micromotors, and microneedles, as well as combinations of these microfluidic systems.
Gohar Soufi, Tijana Maric, Isidro Badillo‐Ramírez, Juliane Fjelrad Christfort, Matteo Tollemeto, Carmen Milan Guimera, Casper Nisula, Giulia Zappalá, Laura De Vittorio, Marta Rubio‐Huertas, Sungyeong Kim, Ziqiao Li, Morten Bo Søndergaard Svendsen, Zhongyang Zhang, Anja Boisen   +14 more
wiley   +1 more source

Brain Pericytes and Wnt/β‐Catenin Signaling Induce Functional Blood–Brain Barrier Phenotype in Human iPSC‐Derived Model

Small Methods, EarlyView.
This study shows that human iPSC‐derived endothelial cells acquire a functional blood–brain barrier phenotype when co‐cultured with brain pericytes and stimulated with CHIR‐99021, a Wnt/β‐catenin activator. This model recapitulates key barrier properties, inflammatory responses, and transcriptomic features of the native human BBB, offering new ...
Henrique Nogueira Pinto, Nine R. Kok, Philipp C. Hauger, Manon Karsten‐van Diepen, Michael de Kok, Nanne J. Paauw, Susanne M. A. van der Pol, Joline P. Nugteren‐Boogaard, Peter L. Hordijk, Stephanie D. Beekhuis‐Hoekstra, Susan Gibbs, Nienke M. de Wit, Helga E. de Vries   +12 more
wiley   +1 more source

Biomaterial Physical Cues as Gene Regulators for Cellular Agriculture

Advanced Genetics, Volume 7, Issue 2, June 2026.
This review elucidates how biomaterial physical cues—ranging from matrix stiffness to remote electromagnetic fields—serve as extrinsic regulators of gene expression in cellular agriculture. By identifying central mechanotransduction pathways that bridge physical inputs to genetic remodeling, the authors propose the “Material Genome” concept: a ...
Jianuo Liu, Ye Liu
wiley   +1 more source