Results 241 to 250 of about 410,464 (313)

Hydrogen Halide Gas Sensors: Active Materials, Operation Principles, and Emerging Technologies

open access: yesInterdisciplinary Materials, EarlyView.
This review considers hydrogen halide (HX) gas sensors across functional materials and principles: acoustic, chemical, optical and nanophotonic. The strong acidity and reactivity of HX gases are discussed as constraints for stability and selectivity of these devices.
Xiuzhen Liu   +12 more
wiley   +1 more source

Reconfigurable Three-Dimensional Gold Nanorod Plasmonic Nanostructures Organized on DNA Origami Tripod.

open access: yesACS Nano, 2017
Pengfei Zhan   +10 more
semanticscholar   +1 more source

A plasmonic and intelligent sweat sensing patch for large‐scale health monitoring

open access: yesInfoMat, EarlyView.
We designed a miniaturized and intelligent sweat sensing patch that collects sweat through a microfluidic module and analyzes it using multimodal laser sensing and artificial intelligence‐assisted diagnosis. This patch enables rapid, large‐scale health monitoring and diagnosis by detecting multiple biomarkers in sweat, offering a noninvasive ...
Yuanchao Liu   +13 more
wiley   +1 more source

Minimizing quantification uncertainty in nanoplasmonic platforms: Multifunctional MoS2‐integration for precise biomarker determination

open access: yesInfoMat, EarlyView.
The multifunctional integration of MoS2 into the SERS platform addresses key limitations in accurate quantification. Atomically thin MoS2 reduces spot‐to‐spot variations via plasmonic calibration and improves quantification reliability by ensuring consistent signal changes with analyte concentration.
Seungkyun Lee   +9 more
wiley   +1 more source

Plasmonics‐Enhanced Characterization of Cervid PrP (87–114) Fragment Aggregates in Solution

open access: yesJournal of Biophotonics, EarlyView.
Multimodal nanophotonics platform combining plasmon‐enhanced imaging, label‐free SERS, and optical staining reveals new insights into the aggregation of the cervid PrP (87–114) fragment, an amyloidogenic sequence linked to chronic wasting disease susceptibility.
Shinki Midha   +4 more
wiley   +1 more source

Plasmon–Exciton–Driven Modulation of the Electronic and Optical Properties of MoS2 via Cayley Tree Fractal Nanostructures

open access: yesJournal of Raman Spectroscopy, EarlyView.
This work investigates the change in optical and electronic properties of monolayer MoS2 through the coupling of its excitons and a plasmonic fractal structure. The formation of the heterostructure shows significant enhancement on the edge of the fractal pattern relative to off, owing to the enhanced electric field at the edge of the branches.
Zeiad Saad   +3 more
wiley   +1 more source

Mini‐Review: Angular Scattering and Directional Effects in Tip‐Enhanced Raman Spectroscopy

open access: yesJournal of Raman Spectroscopy, EarlyView.
Mini‐review: Angular scattering and directional effects in tip‐enhanced Raman spectroscopy. Felix Schneider, David Baschnagel, Tim Parker, Yang Zhao, Alfred J. Meixner*, Dai Zhang*. This mini‐review examines angular scattering and directional effects in tip‐enhanced Raman spectroscopy (TERS), emphasizing their importance for quantitative interpretation
Felix Schneider   +5 more
wiley   +1 more source

Nonresonant Surface‐Enhanced Hyper Raman Scattering of Aromatic Amino Acids on Gold Nanoparticles

open access: yesJournal of Raman Spectroscopy, EarlyView.
The surface‐enhanced hyper Raman spectra of the three aromatic amino acids phenylalanine, tryptophan, and tyrosine, obtained with nonresonant excitation at a wavelength of 1064 nm, are reported. The data are discussed in the context of the interaction of the molecules with two gold nanoparticle plasmonic substrates, as well as intermolecular ...
Fariha Binte Rahman, Janina Kneipp
wiley   +1 more source

Identification of Natural and Artificial Modifications in DNA at the Nanometer Level

open access: yesJournal of Raman Spectroscopy, EarlyView.
Short single‐ and double‐stranded DNA sequences with natural and artificial markers are examined at ambient conditions using TERS to identify and localize the labelled nucleobases. The differences between single‐ and double‐stranded DNA should provide clear experimental evidence of the extreme surface sensitivity of TERS.
Tanja Deckert‐Gaudig   +4 more
wiley   +1 more source

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