Results 71 to 80 of about 83,621 (290)

Electroreductive amination of carboxylic acids by cobalt catalysis

Nature Communications
Catalytic reduction of carboxylic acids to valuable chemicals is highly desirable yet challenging for both biomass conversion and organic synthesis. Here we describe an efficient and sustainable electrocatalytic hydrogenation of carboxylic acids with ...
Huihua Bi, Zhizheng Chen, Changsheng Bi, Shuanglin Qu, Jie Liu   +4 more
doaj   +1 more source

The bZIP Transcription Factor ZIP-11 Is Required for the Innate Immune Regulation in Caenorhabditis elegans

Frontiers in Immunology, 2021
Innate immunity is the first line of host defense against pathogen infection in metazoans. However, the molecular mechanisms of the complex immune regulatory network are not fully understood.
Zhongfan Zheng, Zhongfan Zheng, Yilixiati Aihemaiti, Yilixiati Aihemaiti, Junqiang Liu, Junqiang Liu, Muhammad Irfan Afridi, Muhammad Irfan Afridi, Shengmei Yang, Shengmei Yang, Xiumei Zhang, Xiumei Zhang, Yongfu Xu, Yongfu Xu, Chunhong Chen, Chunhong Chen, Haijun Tu, Haijun Tu   +17 more
doaj   +1 more source

Broadband, Flexible, Skin‐Compatible Carbon Dots/Graphene Photodetectors for Wearable Applications

Advanced Functional Materials, EarlyView.
Broadband, flexible photodetectors integrating nitrogen‐rich carbon dots with single‐layer graphene on plastic substrates are demonstrated. A biocompatible chitosan–glycerol electrolyte enables efficient low‐voltage gating and on‐skin operation. The devices exhibit ultraviolet‐to‐near‐infrared response, mechanical robustness under bending, and verified
Nouha Loudhaief, Petr Rozhin, Ilaria Bertuol, Ali Raza, Leonardo Viti, Subhankar Roy, Enrico Cavarzerani, Luca Sbuelz, Matteo Brilli, Andrea Serinolli, Jacopo Nicoletti, Riccardo Piccoli, Sebastián Castilla, Simone Dal Zilio, Enrique Rodríguez‐Castellón, Miriam Serena Vitiello, Maurizio Selva, Flavio Rizzolio, Alvise Perosa, Giovanni Antonio Salvatore, Domenico De Fazio   +20 more
wiley   +1 more source

Label-free chemical imaging of cytochrome P450 activity by Raman microscopy

Communications Biology, 2022
Cytochrome P450 activity is assessed at the single-cell level using chemical imaging, Raman microscopy, which gives quantitative insights into effects of drug administration on cellular biochemistry.
Menglu Li, Yasunori Nawa, Seiichi Ishida, Yasunari Kanda, Satoshi Fujita, Katsumasa Fujita   +5 more
doaj   +1 more source

All‐Aqueous Pullulan Fibers Enabling Visible‐to‐Near‐Infrared Waveguiding with Mechanical and Thermal Resilience

Advanced Functional Materials, EarlyView.
Pullulan, a biomass‐derived polysaccharide, is transformed into transparent optical fibers using a solvent‐free borax hydrogel‐spinning method. The fibers outperform PMMA with ≈200 MPa tensile strength and 200 °C stability, while uniquely guiding visible‐to‐NIR light and enabling additive‐free humidity sensing.
Yuya Fukata, Aayush Kumar Jaiswal, Ari Hokkanen, Hannes Orelma, Tadahisa Iwata   +4 more
wiley   +1 more source

Switchable Thermal Mid‐IR Conducting Polymer Antenna Arrays

Advanced Functional Materials, EarlyView.
This study presents switchable mid‐infrared plasmonic resonances in PEDOT antenna arrays. Their optical extinction peaks can be reversibly switched ‘OFF’ and ‘ON’ by tuning the polaronic charge carrier concentration via the polymer's redox state, offering modulation of optical responses in the thermal mid‐infrared range including around 10 µm ...
Pravallika Bandaru, Mohammad Shaad Ansari, Suraya Kazi, Dongqing Lin, Alexander Yu Polyakov, Magnus P. Jonsson   +5 more
wiley   +1 more source

Electrochemical Detection of Sequence-Specific DNA with the Amplification of Gold Nanoparticles

International Journal of Electrochemistry, 2011
A sensitive electrochemical DNA biosensor was prepared based on mercaptoacetic acid (MAA)/gold nanoparticles (AuNPs) modified electrode. Probe DNA (NH2-DNA) was covalently linked to the carboxyl group of MAA in the presence of 1-ethyl-3-(3 ...
Yuzhong Zhang, Zhen Wang, Yuehong Wang, Lei Huang, Wei Jiang, Mingzhu Wang   +5 more
doaj   +1 more source

Sb2S3-templated synthesis of sulfur-doped Sb-N-C with hierarchical architecture and high metal loading for H2O2 electrosynthesis

Nature Communications, 2023
Selective two-electron (2e−) oxygen reduction reaction (ORR) offers great opportunities for hydrogen peroxide (H2O2) electrosynthesis and its widespread employment depends on identifying cost-effective catalysts with high activity and selectivity.
Minmin Yan, Zengxi Wei, Zhichao Gong, Bernt Johannessen, Gonglan Ye, Guanchao He, Jingjing Liu, Shuangliang Zhao, Chunyu Cui, Huilong Fei   +9 more
doaj   +1 more source

Bio‐Inspired Molecular Events in Poly(Ionic Liquids)

Advanced Functional Materials, EarlyView.
Originating from dipolar and polar inter‐ and intra‐chain interactions of the building blocks, the topologies and morphologies of poly(ionic liquids) (PIL) govern their nano‐ and micro‐processibility. Modulating the interactions of cation‐anion pairs with aliphatic dipolar components enables the tunability of properties, facilitated by “bottom‐up ...
Jiahui Liu, Marek W. Urban
wiley   +1 more source

Medical imaging-based companion diagnostics for solid tumors

EngMedicine
Heterogeneity within the solid tumor microenvironment contributes to a poor prognosis and limited therapeutic responses. Companion diagnostics (CDx), a clinical technique that gives doctors vital biomarker information to enhance patient outcomes through ...
Rui Yin, Qingpeng Zhang, Shiyi Liao, Chang Lu, Cheng Zhang, Qingyun Cai, Guosheng Song   +6 more
doaj   +1 more source