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Quantum Well Superlattice Heteronanostructures for Efficient Photocatalytic Hydrogen Evolution.
ACS Nano
March 2025
State Key Laboratory of Applied Organic Chemistry, Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China.
In this study, we construct a quantum well effect-based two-dimensional Z-scheme superlattice heteronanostructure photocatalyst constructed from hydrogen-bonded porphyrin organic frameworks (HOFs) and carbon nitride. Porphyrin HOFs extend spectral absorption, while their π-conjugation and electron density variations significantly enhance charge separation and exhibit favorable alignment with the energy levels of carbon nitride, thereby enabling efficient charge transfer. Carboxylic acid channels in the HOFs further promote the decomposition of water molecules, thereby boosting hydrogen production.
View Article and Find Full Text PDFEnhanced Hot/Free Electron Effect for Photocatalytic Hydrogen Evolution Based on 3D/2D Graphene/MXene Composite.
Small
March 2025
The Centre of Nanoscale Science and Technology and Key Laboratory of Functional Polymer Materials, State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin, 300071, China.
Photocatalytic hydrogen production through water splitting represents a promising strategy to store solar energy as chemical energy. Current photocatalysts primarily focus on traditional semiconductor materials, such as metal oxides, sulfides, nitrides, g-CN, etc. However, these materials often suffer from large bandgap and fast charge recombination, which limit sunlight utilization and result in unsatisfactory photon conversion efficiency.
View Article and Find Full Text PDFBiological Regulation Studied and with Modified Proteins.
Acc Chem Res
March 2025
Center for BioEnergetics, Biodesign Institute and School of Molecular Sciences, Arizona State University, Tempe, Arizona 85287, United States.
ConspectusProteins and peptides occur ubiquitously in organisms and play key functional roles, as structural elements and catalysts. Their major natural source is ribosomal synthesis, which produces polypeptides from 20 amino acid building blocks. Peptides containing noncanonical amino acids have long been prepared by chemical synthesis, which has provided a wealth of physiologically active compounds.
View Article and Find Full Text PDFBio-Inspired Retina by Regulating Ion-Confined Transport in Hydrogels.
Adv Mater
March 2025
Department of Biomedical Engineering, Guangdong Provincial Key Laboratory of Advanced Biomaterials, Institute of Innovative Materials, Southern University of Science and Technology, Shenzhen, 518055, P. R. China.
The effective and precise processing of visual information by the human eye primarily relies on the diverse contrasting functions achieved through synaptic regulation of ion transport in the retina. Developing a bio-inspired retina that uses ions as information carriers can more accurately replicate retina's natural signal processing capabilities, enabling high-performance machine vision. Herein, an ion-confined transport strategy is proposed to construct a bio-inspired retina by developing artificial synapses with inhibitory and excitatory contrasting functions.
View Article and Find Full Text PDFEnhanced Tumor Ablation and Immune Activation Via Irreversible Electroporation and Functionalized Vermiculite Nanosheets.
Small
March 2025
State Key Laboratory of Advanced Medical Materials and Devices, Medical College, Tianjin University, Tianjin, 300072, China.
Irreversible electroporation (IRE) is a minimally invasive, non-thermal tumor ablation technique that induces nanoscale membrane perforation, leading to immunogenic cell death (ICD). However, IRE alone is limited by uneven electric field attenuation, incomplete tumor ablation, and the immunosuppressive nature of the tumor microenvironment. To address these challenges, a multifunctional nanomaterial, vermiculite nanosheets/calcium peroxide nanosheets (VMT/CaO NSs), is developed to enhance the efficacy of IRE.
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