The growth of metal nanostructures induced by surface plasmons has attracted widespread attention and provides a wide range of applications in the development of plasmonic nanochemistry, biosensors, photoelectrochemical coupling reactions, Herein, a simple method is reported for the fabrication of Ag nanoflakes induced by the surface plasma on two-dimensional periodic nanopatterned arrays with the aid of 4-MBA molecules. The light radiation, molecules, and environmental gases are selected to track the formation mechanism of Ag nanoflakes. The Raman observations and theoretical analyses confirm that small aromatic molecules with carboxyl groups play important roles in Ag nanoflake formation derived by localized surface plasmon resonance (LSPR)-driven carriers, which provide profound insights into the study of LSPR-driven carriers, participating in chemical reactions and the reconstruction of dense hot spots in nanogaps.
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http://dx.doi.org/10.1039/d2nr03385b | DOI Listing |
Nat Commun
January 2025
Faculty of Physics, Astronomy and Applied Computer Science, Jagiellonian University, PL 30-348, Krakow, Poland.
Atomically precise synthesis of graphene nanostructures on semiconductors and insulators has been a formidable challenge. In particular, the metallic substrates needed to catalyze cyclodehydrogenative planarization reactions limit subsequent applications that exploit the electronic and/or magnetic structure of graphene derivatives. Here, we introduce a protocol in which an on-surface reaction is initiated and carried out regardless of the substrate type.
View Article and Find Full Text PDFAnalyst
January 2025
Department of Engineering Design, Indian Institute of Technology Madras, India.
High throughput intracellular delivery of biological macromolecules is crucial for cell engineering, gene expression, therapeutics, diagnostics, and clinical studies; however, most existing techniques are either contact-based or have throughput limitations. Herein, we report a light-activated, contactless, high throughput photoporation method for highly efficient and viable cell transfection of more than a million cells within a minute. We fabricated reduced graphene oxide (rGO) nanoflakes that was mixed with a polydimethylsiloxane (PDMS) nanocomposite thin sheet with an area of 3 cm and a thickness of ∼600 μm.
View Article and Find Full Text PDFACS Nano
January 2025
Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, Suzhou 215123, PR China.
The ever-growing interest in MXenes has been driven by their distinct electrical, thermal, mechanical, and optical properties. In this context, further revealing their physicochemical attributes remains the key frontier of MXene materials. Herein, we report the anisotropic localized surface plasmon resonance (LSPR) features in TiCT MXene as well as site-selective photocatalysis enabled by the photophysical anisotropy.
View Article and Find Full Text PDFSmall
January 2025
Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai, 201210, P. R. China.
Replacing the oxygen evolution reaction with the alternative glycerol electro-oxidation reaction (GER) provides a promising strategy to enhance the efficiency of hydrogen production via water electrolysis while co-generating high-value chemicals. However, obtaining low-cost and efficient GER electrocatalysts remains a big challenge. Herein, a self-supported N-doped CoNiO nanoflakes (N-CoNiO NF) is proposed for efficient electrocatalytic oxidation of glycerol to formate.
View Article and Find Full Text PDFACS Appl Mater Interfaces
November 2024
Wuhan National High Magnetic Field Center and Department of Physics, Huazhong University of Science and Technology, Wuhan 430074, P. R. China.
Two-dimensional (2D) van der Waals (vdW) magnetic materials with atomic-scale thickness and smooth interfaces promise the possibility of developing high-density, energy-efficient spintronic devices. However, it remains a challenge to effectively control the perpendicular magnetic anisotropy (PMA) of 2D vdW ferromagnetic materials, as well as the integration of multiple memory cells. Here, we report highly efficient magneto-optical memory arrays by utilizing the huge spin-orbit torques (SOT) induced by the in-plane current in FeGeTe (FGT) flake.
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