Investigating lightweight electromagnetic microwave absorption materials is still urgent because of the issue related to pollution or military defense. Our findings indicate that core–shell MnO@carbon nanowires (MnO@C NWs) achieve substantially enhanced absorption, suggesting suitable impedance matching induced by synergetic effect between MnO and carbon. Furthermore, peapod-like MnO@C NWs with internal void space can be facially synthesized partial etching NWs. The voids/cavities exhibit...

The useful functionalization and self-assembly of two-dimensional layered materials like hydrotalcite (LDH) are critical for the wide application nanomaterials. In this work, some self-assembled Langmuir films ion-exchanged LDH dyes with different molecular structures were prepared by Langmuir–Blodgett (LB) technique. aggregation states used dye molecules on surface obtained membrane structures/properties studied. hydroxyethyl sulfonate-inserted (LDH-Ise) nanosheets able to induce formation...

The research studies on the functionalization of two-dimensional (2D) materials (such as black phosphorus) are essential for development self-assembled nanomaterials. In this work, composite films based phosphorus (BP) and dyes were prepared by Langmuir–Blodgett (LB) technology. order to make better use characteristics BP, it was exfoliated form BP nanosheets (BPNS) then modified with polyethyleneimine (PEI) maintain stability. UV–vis, Raman, atomic force microscopy, other characterizations...

The effective functionalization and self-assembly of MXene are crucial importance for a broad range nanomaterial applications. In this work, we investigated the aggregates sulfanilic acid-modified (abbreviated as MXene-SO3H) with three model dyes at air⁻water interface demonstrated morphological aggregation changes composite films, using Langmuir-Blodgett (LB) technology, well excellent uniformity reproducibility by surface-enhanced Raman scattering (SERS) spectra. This research has found...

At present, the use of efficient and cost-effective methods to construct plasmonic surface-enhanced Raman scattering (SERS) substrates high sensitivity, uniformity reproducibility is still crucial satisfy practical application SERS technology. In this paper, a localized surface resonance (LSPR) tunable flexible Ag@PDMS substrate was successfully constructed by low-cost bio-template-stripping method magnetron sputtering The theory proves that local electromagnetic field enhancement "hot spot"...

In this work, we report a biomimetic synthesis route of 3D Ag nanofilm/glasswing butterfly wing hybrids (Ag-G.b.) by magnetron sputtering technology. The surface-enhanced Raman scattering (SERS) substrate is fabricated from an original chitin-based nanostructure, which serves as bio-scaffold for nanofilms to be coated on. novel crisscrossing plate-like nanostructures Ag-G.b. nanohybrids with thick provide substantial contribution SERS enhancement. Measuring the performance crystal violet...

Plasmonic tweezers based on periodic nanostructures have been used to manipulate particles through multiple and uniform local surface plasmon (LSP) fields. However, the coverage area of is limited, which restricts range trapping manipulation. In this paper, we present a novel approach achieve large-scale manipulation microspheres by uniformly coupled LSP fields short-range disordered self-assembled Ag nanoplates (DSNP) film. The DSNP film prepared simple low-cost methods─chemical growth...

With the rapid development of nanoscience and nanotechnology, surface-enhanced Raman spectroscopy (SERS) is widely used for detection analyte molecules biomolecules in liquids. However, due to plasmonic near-field effect, key challenge SERS liquids attract target solutions into “hot spots”. In this work, SERS-active substrates (Ag@AAO) with excellent signal sensitivity uniformity were successfully prepared by sputtering Ag films on anodized aluminum oxide (AAO) templates. Subsequently,...

Although surface-enhanced Raman scattering (SERS) technology has been widely explored nowadays in various fields, the fabrication of practical SERS-active substrates with prominent recognition ability for analyte molecules is still defective. Natural Fulfora candelaria wing (FCW) three-dimensional (3D) hierarchical reticular nanostructure was selected as a new bioscaffold rough silver (Ag) nanoislands to be assembled on prepare SERS substrate (Ag/FCW substrate). By adjusting sputtering time...

Copper-doped zinc selenide quantum dots modified with mercaptopropionic acid were prepared. The fluorescence quenching of the was directly proportional to sparfloxacin concentration. A novel method established determine using copper-doped as fluorescent probes. interaction between and investigated by absorption spectroscopies. linear relationship obtained quenched concentration from 1 × 10−6 1.8 10−5 moles per liter in KH2PO4-Na2HPO4 buffer at pH 7.5 2.9 liter. limit detection for 2.4 10−9...

SERS has become a powerful trace detection technology, but its practical application is often limited by the fixed optical properties of cast metals (Au, Ag and Cu). In this paper, bimetallic nanostructures prepared changing metal content ratio can regulate different responses substrate. addition, it was found that scale moth wings (MW) with 3D grating-like uniform nanoarrays using bioscaffold provide consistently high-density ‘hot spot’ for as-prepared plasmonic Here, two methods (i)...

Excited plasmonic nanoantennas enable the manipulation of photons coupled with quantum emitters or trapping particles as tweezers, leveraging strong evanescent gradient fields at nanoscale. However, ohmic loss metals presents a significant challenge for stable and high-precision nanoparticles without causing damage. In this study, we investigated enhanced properties induced by plasmon-exciton interaction tweezers. Through coupling between plasmons excitons, dynamic particle is achievable...

The ability of plasmonic optical tweezers (POT) based on metal nanostructure to stably trap and dynamically manipulate nanoscale objects at low laser power has been widely used in nanotechnology life sciences fields. In particular, the nanocavity structure can improve local field intensity depth by confining electromagnetic fields subwavelength volumes. this paper, force potential well exerted polystyrene (PS) particles (RNP≤50 nm) dependent geometric size is theoretically investigated. It...

As new type of indoor decoration materials, gypsum plasters have good development prospect in fire resistance, heat preservation and insulation, environmental protection, etc.The purpose this paper is to prepare plaster using desulphurization gypsum, waste mycelium retarder (WPM) some additives.The formulation surface was obtained: desulfurization 93%, cement 2%, granulated blast-furnace slag 4%, water retention agent 1%, reducing 0.05%, WPM 0.06%.The base obtained by mixing with medium sand...