Results 41 to 50 of about 254,429 (291)

Effects of Isotope Substitution on Local Heating and Inelastic current in Hydrogen Molecular Junctions

open access: yes, 2008
Using first principle approaches, we investigate the effects of isotope substitution on the inelastic features in the hydrogen molecular junction. We observe thatlocal heating and inelastic current have significant isotope-substitution effects.
Chen, Yu-Chang
core   +1 more source

Raman‐based label‐free microscopic analysis of the pancreas in living zebrafish larvae

open access: yesFEBS Open Bio, EarlyView.
Forward stimulated Raman scattering (F‐SRS) and epi coherent anti‐Stokes Raman scattering (E‐CARS) allow label‐free discrimination of distinct subcellular structures in the pancreas of living zebrafish larvae. Given the straightforward applicability, we anticipate broad implementation of Raman microscopy in other organs and across various biomedical ...
Noura Faraj   +3 more
wiley   +1 more source

Patterns of granular convection and separation in narrow vibration bed

open access: yesEPJ Web of Conferences, 2017
Granular convection/separation of single and binary component particles are studied in a narrow vibration bed, respectively. With filling the single light particles (molecular sieve beads), the bed exhibits five different states successively by ...
Liu Chuanping   +4 more
doaj   +1 more source

The Influence of Vertical Vibration on Nanoscale Friction: A Molecular Dynamics Simulation Study

open access: yesCrystals, 2018
The influence of vibration on friction at the nanoscale was studied via molecular dynamics (MD) simulations. The results show that average friction increases in a high-frequency range.
Yang Cheng, Pengzhe Zhu, Rui Li
doaj   +1 more source

Effect of Vacancy Defects on the Vibration Frequency of Graphene Nanoribbons

open access: yesNanomaterials, 2022
Graphene is a type of two-dimensional material with special properties and complex mechanical behavior. In the process of growth or processing, graphene inevitably has various defects, which greatly influence the mechanical properties of graphene.
Hong Guo, Jing Wang
doaj   +1 more source

Why edge effects are important on the intrinsic loss mechanisms of graphene nanoresonators?

open access: yes, 2012
Molecular dynamics simulations are performed to investigate edge effects on the quality factor of graphene nanoresonators with different edge configurations and of various sizes.
Jiang, Jin-Wu, Wang, Jian-Sheng
core   +1 more source

Observation and analysis of Fano-like lineshapes in the Raman spectra of molecules adsorbed at metal interfaces [PDF]

open access: yes, 2015
Surface enhanced Raman spectra from molecules (bipyridyl ethylene) adsorbed on gold dumbells are observed to become increasingly asymmetric (Fano-like) at higher incident light intensity.
Apkarian, V. A.   +6 more
core   +2 more sources

Enzymatic degradation of biopolymers in amorphous and molten states: mechanisms and applications

open access: yesFEBS Open Bio, EarlyView.
This review explains how polymer morphology and thermal state shape enzymatic degradation pathways, comparing amorphous and molten biopolymer structures. By integrating structure–reactivity principles with insights from thermodynamics and enzyme engineering, it highlights mechanisms that enable efficient polymer breakdown.
Anđela Pustak, Aleksandra Maršavelski
wiley   +1 more source

Interplay between electron-electron and electron-vibration interactions on the thermoelectric properties of molecular junctions

open access: yes, 2014
The linear thermoelectric properties of molecular junctions are theoretically studied close to room temperature within a model including electron-electron and electron-vibration interactions on the molecule.
Cataudella, V.   +2 more
core   +1 more source

Radiolysis of ammonia-containing ices by energetic, heavy and highly charged ions inside dense astrophysical environments [PDF]

open access: yes, 2009
Deeply inside dense molecular clouds and protostellar disks, the interstellar ices are protected from stellar energetic UV photons. However, X-rays and energetic cosmic rays can penetrate inside these regions triggering chemical reactions, molecular ...
Balanzat, E.   +6 more
core   +3 more sources

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