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http://dx.doi.org/10.1002/anie.201008145 | DOI Listing |
Small
August 2025
MOE Key Laboratory of Cluster Science, School of Chemistry and Chemical Engineering, Beijing Institute of Technology (BIT), Beijing, 100081, P. R. China.
1D subnanomaterials (SNMs), encompassing nanowires and nanobelts with a diameter or thickness approximate to the size of a single unit cell, possess the inherent functionality of inorganic materials, polymer-analogue properties, intrinsic order, and multilevel interactions. These distinctive characteristics establish 1D SNMs as highly processable building blocks, offering significant advantages for the fabrication of advanced materials, including polarization materials, organogels, photothermal conversion devices, fluorescent materials, stimuli-responsive platforms, and catalysis. This paper summarizes assembly methods, including self-assembly, wet-spinning, electrospinning, directional coating, freezing-casting and Langmuir-Blodgett technique, which facilitate the integration of 1D SNMs into free-standing fibers, films, and 3D assemblies without polymeric additives.
View Article and Find Full Text PDFNanophotonics
August 2025
Division of Solid State Physics, Lund University, P.O. Box 118, SE-22100 Lund, Sweden.
Semiconductor nanowires can enhance the signal of fluorescent molecules, thus significantly improving the limits of fluorescence detection in optical biosensing. In this work, we explore how the sensitivity can further be enhanced through "digital" detection of adequately spaced vertically aligned nanowires, employing single-emitter localization methods, and bright-field microscopy. Additionally, we introduce a systematic analysis pipeline aimed at harnessing this digital detection capability and evaluate its impact on detection sensitivity.
View Article and Find Full Text PDFJ Chem Phys
July 2025
School of Materials Science, Japan Advanced Institute of Science and Technology (JAIST), Nomi, Ishikawa 923-1292, Japan.
This study found that plasmonic hotspots (HSs) between silver nanoparticles (NPs) and silver nanowires (NWs) generated two-photon excited emissions, including hyper-Rayleigh, hyper-Raman, and two-photon fluorescence of dye molecules with continuous-wave (CW) near-infrared (NIR) laser excitation. A comparison between experimental results and electromagnetic (EM) calculations revealed that a large EM enhancement factor (FR) at the HS appears in the visible to NIR regions owing to EM coupling between localized plasmons of the NP and surface plasmons of the NW. This ultrabroad resonance of the coupled plasmons enables the observation of two-photon-excited emissions with CW laser excitation.
View Article and Find Full Text PDFNano Lett
July 2025
European Synchrotron Radiation Facility, 38000 Grenoble, France.
Integration of semiconductor nanowires is critical for developing scalable and versatile nanodevices, but challenges remain in tailoring optical emission, forming reliable p-n junctions, and ensuring consistent nanoscale interconnection. Here, we investigate GaO/SnO multiwire architectures using synchrotron-based X-ray fluorescence (XRF), X-ray excited optical luminescence (XEOL), X-ray absorption near-edge spectroscopy (XANES), and first-principles simulations. We map dopant distribution, analyze nanoscale optical responses, and determine dopant atomic coordination.
View Article and Find Full Text PDFNano Lett
July 2025
Department of Pharmaceutical Analysis, China Pharmaceutical University, Nanjing 211198, China.
As an important component of the tumor microenvironment, the extracellular matrix (ECM) generally undergoes extensive remodeling, acting as a shield to block drug delivery and immune recognition. Currently, ECM-clearing strategies for tumor treatment still face challenges. In this work, a type of europium metal-organic nanowire was prepared for targeting the highly expressed sialic acid (SA) on glycoproteins within the ECM.
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