Results 211 to 220 of about 49,672 (273)

Bio‐inspired nanophotonics: Structural color, chirality, and resonance metasurfaces

InfoMat, EarlyView.
A butterfly‐wing‐inspired anisotropic plasmonic flatband resonant metasurface. Insets, photo of the butterfly, Sasakia charonda, and the SEM image of its wing scale (above); the SEM image of the metasurface (below). Abstract The dazzling colors of butterfly wings and hummingbird feathers are not painted with pigments, but crafted by nature's invisible ...
Weihan Liu, Yao Liang, Din Ping Tsai
wiley   +1 more source

Interface-Sensitive Epi-Coherent Anti-Stokes Raman Scattering Microscopy for Imaging Cell Adhesion Dynamics. [PDF]

Anal Chem
Zhou M, Dong B, Lukov L, Ma S, He X, Zafarjafarzadeh N, Zhang C.   +6 more
europepmc   +1 more source

Microelectromechanical system‐based devices for the diagnosis, treatment, and monitoring of ophthalmic diseases

Interdisciplinary Medicine, EarlyView.
Due to the characteristics of miniaturization, high sensing performance, integration, and high comfort, MEMS‐based devices were employed to design sensors, imaging systems, drug delivery systems, retinal prosthesis, surgical tools, and wearable products for the ophthalmic disease diagnosis, treatment, and monitoring.
Yaling Peng, Xiaoming Huang, Xueyuan Zhang, Yiling Jiang, Xin Zhang, Xueying Zeng, Fengyuan Sun, Peng Liu, Jin Zhou, Zewei Luo, Tong Wu   +10 more
wiley   +1 more source

Probing Metal Tip‐Induced Bond Weakening of a Reactive Alkyne Center Aligned via a Rigid Triphenylmethane‐Based Tripod on Au(111) by TERS and DFT

Journal of Raman Spectroscopy, EarlyView.
We investigate tip‐induced bond weakening of a single alkyne center immobilized and aligned upright on Au(111) using a rigid triphenylmethane‐based tripod. By varying the tip–molecule distance, we observe shifts in the ≡C–H and –C≡C– vibrational bands via ultrahigh vacuum low‐temperature tip‐enhanced Raman scattering (TERS).
Gang Li, Simon Mennicken, Lu‐Yao Zhu, Sadaf Ehtesabi, Till Reichenauer, Stephan Kupfer, Daniel Schäfer, Saber Mehrparvar, Gebhard Haberhauer, Yao Zhang, Stefanie Gräfe, Sebastian Schlücker, Zhen‐Chao Dong   +12 more
wiley   +1 more source

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

Journal 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, Cédric Lambin, Lorena Veliz, François Lagugné‐Labarthet   +3 more
wiley   +1 more source

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

Journal 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, David Baschnagel, Tim Parker, Yang Zhao, Alfred J. Meixner, Dai Zhang   +5 more
wiley   +1 more source

Stimulated Raman Scattering Microscopy: Real-Time In-Situ Physical and Chemical Characterization of Reverse Osmosis Desalination Membrane Scaling. [PDF]

Environ Sci Technol
Simmons YL, Andersen JM, Zohrabi M, Bright VM, Greenberg AR, Gopinath JT.   +5 more
europepmc   +1 more source

Automated Imaging of Cultured Bacteria in Picoliter Droplets by Coherent Anti‐Stokes Raman Scattering and Two‐Photon Excited Fluorescence Microscopy

Journal of Raman Spectroscopy, EarlyView.
We present an automated system that combines an image‐based fuzzy logic controller for precise positioning of microfluidic picoliter droplets with nonlinear microscopy, using CARS and TPEF modalities for detailed analysis of droplet composition. Time series and z‐stack images of E. coli, B. subtilis, and M. arborescens were recorded.
Fabian Ott, Ashkan Samimi, Sundar Hengoju, Tobias Meyer‐Zedler, Michael Schmitt, Miriam A. Rosenbaum, Jürgen Popp   +6 more
wiley   +1 more source

Hydration gradients drive lipid self-segregation. [PDF]

Proc Natl Acad Sci U S A
Labecka N, Andersson JM, Sparr E, Roger K.   +3 more
europepmc   +1 more source

Surface-enhanced stimulated Raman scattering and fluorescence probing of plasmonic nanoparticles in cellular environments: insights into their spatial distribution and aggregation. [PDF]

Nanoscale Adv
Senapati T, Gerecke C, Wigger D, Kleuser B, Solovyeva E, Semenov K, Sharoyko V, Babich K, Smirnov A, Rühl E.   +9 more
europepmc   +1 more source