Results 51 to 60 of about 2,154,842 (330)

Specific Alcohol-Responsive Photonic Crystal Sensors Based on Host-Guest Recognition

open access: yesGels, 2023
A photonic crystal material based on β-cyclodextrin (β-CD) with adsorption capacity is reported. The materials ((A-β-CD)-AM PC) consist of 3D poly (methyl methacrylate) (PMMA) colloidal microsphere arrays and hydrogels supplemented with β-cyclodextrin ...
Xiaolu Cai   +6 more
doaj   +1 more source

Defect Mass in Gravitational Field and Red Shift of Atomic and Nuclear Radiation Spectra [PDF]

open access: yes, 2000
It is shown, that radiation spectrum of atoms (or nuclei) in the gravitational field has a red shift since the effective mass of radiating electrons (or nucleons) changes in this field. This red shift is equal to the red shift of radiation spectrum in the gravitational field measured in existence experiments.
arxiv   +1 more source

mBeRFP, an improved large stokes shift red fluorescent protein.

open access: yesPLoS ONE, 2013
Herein, we describe the generation of a monomeric large Stokes shift (LSS) red fluorescent protein, mBeRFP, with excitation and emission peaks at 446 and 615 nm, respectively. Compared with two previously reported LSS-RFPs (mKeima and LSS-mKate2), mBeRFP
Jie Yang   +7 more
doaj   +1 more source

A Density Functional Theory Study of Raman Modes of Hydrogenated Cadmium Sulphide Nanoparticles

open access: yesNanomaterials and Nanotechnology, 2012
Raman scattering investigations based on density functional theory (DFT) calculations were performed to explore the vibrational modes of wurtzite structured CdS nanoparticles (NPs).
Abdul Majid   +4 more
doaj   +1 more source

Raman Shifting induced by Cascaded Quadratic Nonlinearities for Terahertz Generation [PDF]

open access: yes, 2020
We introduce a new regime of cascaded quadratic nonlinearities which result in a continuous red shift of the optical pump, analogous to a Raman shifting process rather than self-phase modulation. This is particularly relevant to terahertz generation, where a continuous red shift of the pump can resolve current issues such as dispersion management and ...
arxiv   +1 more source

Cosmological Red-shift [PDF]

open access: yesNature, 1964
Hoyle1 has shown that for a steady-state universe consisting of uniformly distributed matter of density ρ a metric of the form: applies if it is assumed that a uniform creation of matter occurs.
openaire   +2 more sources

Photon Redshift in a Magnetic field

open access: yes, 2010
Previous results from the authors concerning the arising a tiny photon anomalous paramagnetic moment are also interpreted as a red-shift in analogy to the gravitational known effect.
ELIZABETH RODRÍGUEZ QUERTS   +2 more
core   +1 more source

Infra-Red Finite, Physical Electron Propagator in 2+1 Dimensions [PDF]

open access: yesPhys.Lett. B596 (2004) 70-76, 2004
In this paper we study the infra-red behaviour of a gauge invariant and physically motivated description of a charged particle in 2+1 dimensions. We show that both the mass shift and the wave function renormalisation are infra-red finite on-shell.
arxiv   +1 more source

DNA binding shifts the redox potential of the transcription factor SoxR [PDF]

open access: yes, 2008
Electrochemistry measurements on DNA-modified electrodes are used to probe the effects of binding to DNA on the redox potential of SoxR, a transcription factor that contains a [2Fe-2S] cluster and is activated through oxidation. A DNA-bound potential of +
A. A. Gorodetsky   +48 more
core   +2 more sources

The [2Fe‐2S] cluster of mitochondrial outer membrane protein mitoNEET has an O2‐regulated nitric oxide access tunnel

open access: yesFEBS Letters, EarlyView.
The mitochondrial outer membrane iron–sulphur ([Fe‐S]) protein mitoNEET is a target of the type‐2 diabetes drug pioglitazone. Its unknown molecular function is linked to respiratory complex activity and mitochondrial function. We discovered that O2 protects the mitoNEET [2Fe‐2S] cluster against NO oxidation and desensitization towards reduction by H2S.
Thao Nghi Hoang   +9 more
wiley   +1 more source

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