Results 61 to 70 of about 1,507 (165)
EcoEnergy, EarlyView.Despite its potential, photocatalysis is limited by inefficient charge carrier separation and transport. This article reviews the mechanisms, characterization methods, and strategies for improvement, concluding with future challenges in the field. ABSTRACT Photocatalysis offers a promising solution to environmental and renewable energy issues. However,
Leqi Cheng +5 more
wiley +1 more source
High resolution 3D imaging of living cells with sub-optical wavelength phonons [PDF]
, 2016 Label-free imaging of living cells below the optical diffraction limit poses great challenges for optical microscopy. Biologically relevant structural information remains below the Rayleigh limit and beyond the reach of conventional microscopes.
A Danielli +37 more
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Nonresonant Surface‐Enhanced Hyper Raman Scattering of Aromatic Amino Acids on Gold Nanoparticles
Journal 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
, 2016 Based on the second-order quantum interference between frequency entangled photons that are generated by parametric down conversion, a quantum strategic algorithm for synchronizing two spatially separated clocks has been recently presented.
Dong, Ruifang +8 more
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Optically excited nanoscale ultrasonic transducers [PDF]
, 2015 In order to work at higher ultrasonic frequencies, for instance, to increase the resolution, it is necessary to fabricate smaller and higher frequency transducers.
Arca, Ahmet +8 more
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Small, EarlyView.Few atomic‐layer‐thick carbon nitride nanosheets (CNNS) were synthesized using an in situ exfoliation technique. The directly exfoliated CNNS exhibited a wider electronic bandgap along with a fourfold increase in specific surface area and tenfold increase in pore volume.
Narendra Chaulagain +13 more
wiley +1 more source
Photo-excited charge carriers suppress sub-terahertz phonon mode in silicon at room temperature [PDF]
, 2016 There is a growing interest in the mode-by-mode understanding of electron and phonon transport for improving energy conversion technologies, such as thermoelectrics and photovoltaics.
Chen, Gang +3 more
core +3 more sources
SERS‐Based Nano‐ and Microsystems Toward Biomedical Applications
Small, EarlyView.This review provides a current overview of nano‐ and microscale SERS‐based devices, encompassing all aspects from material design to practical applications. We highlight controlled SERS‐active architectures, including patterned substrates, nanorods, microspheres, micromotors, and microneedles, as well as combinations of these microfluidic systems.
Gohar Soufi +14 more
wiley +1 more source
External Stimuli‐Activable Single‐Atom Nanozymes for Bioapplications
Small, EarlyView.Stimuli‐activable single‐atom nanozymes (SANs) are reviewed from materials design to biomedical applications. We explain electronic‐structure tuning principles and synthesis strategies that maximize the responsiveness of metal active sites and supports to light, ultrasound, and magnetic fields.
Hyun Ko +6 more
wiley +1 more source
, 1979 Contains report on ten research projects split into three sections.Joint Services Electronics Program (Contract DAAG29-78-C-0020)National Science Foundation (Grant PHY77-07156)U. S.
Davis, James L. +10 more
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