Results 1 to 10 of about 375,783 (265)

Regulating the absorption spectrum of polydopamine. [PDF]

open access: yesSci Adv, 2020
This work demonstrates a strategy to regulate the absorption spectrum of polydopamine via macromolecular structural tailoring.
Zou Y   +6 more
europepmc   +4 more sources

Absorption Spectrum of Hydroperoxymethyl Thioformate: A Computational Chemistry Study [PDF]

open access: yesMolecules
Hydroperoxymethyl thioformate (or HPMTF) is a compound relevant to the chemistry of sulfur in the marine atmosphere. The chemical cycling of this molecule in the atmosphere is still uncertain due in part to the lack of accurate knowledge of its ...
David Catalán-Fenollosa   +4 more
doaj   +2 more sources

Change in Osmotic Pressure Influences the Absorption Spectrum of Hemoglobin inside Red Blood Cells [PDF]

open access: yesCells
Absorption spectra of red blood cell (RBC) suspensions are investigated in an osmolarity range in the medium from 200 mOsm to 900 mOsm. Three spectral parameters are used to characterize the process of swelling or shrinkage of RBC—the absorbance at 700 ...
Miroslav Karabaliev   +3 more
doaj   +2 more sources

Sol-gel synthesis of Gd2O3:Nd3+ nanopowders and the study of their luminescent properties [PDF]

open access: yesНаучно-технический вестник информационных технологий, механики и оптики, 2021
The paper presents the results of the sol-gel synthesis of Gd2O3:Nd3+ nanopowders by the citrate method, as well as the study of their structure and luminescent properties.
Amir Moussaoui   +4 more
doaj   +1 more source

Accurate Prediction of Absorption Spectral Shifts of Proteorhodopsin Using a Fragment-Based Quantum Mechanical Method

open access: yesMolecules, 2021
Many experiments have been carried out to display different colors of Proteorhodopsin (PR) and its mutants, but the mechanism of color tuning of PR was not fully elucidated.
Chenfei Shen   +3 more
doaj   +1 more source

Aluminum-Doping Effects on the Electronic States of Graphene Nanoflake: Diffusion and Hydrogen Storage Mechanism

open access: yesNanomaterials, 2023
Graphene nanoflakes are widely utilized as high-performance molecular devices due to their chemical stability and light weight. In the present study, the interaction of aluminum species with graphene nanoflake (denoted as GR-Al) has been investigated ...
Hiroto Tachikawa   +4 more
doaj   +1 more source

A Transmissive Imaging Spectrometer for Ground-Based Oxygen A-Band Radiance Observation

open access: yesPhotonics, 2022
The oxygen A-band (759–770 nm) is a commonly used band for atmospheric observations. The signal in this band has wide dynamic range and can be used to invert several atmospheric parameters, such as air pressure and atmospheric optical depth, at different
Heng Wu   +9 more
doaj   +1 more source

Vertical Stress Induced Anomalous Spectral Shift of 13.17° Moiré Superlattice in Twist Bilayer Graphene

open access: yesMolecules, 2023
The electronic states of the twist bilayer graphene (TBG) moiré superlattice are usually regulated by the rotation angle, applied electric field, applied magnetic field, carrier concentration and applied stress, and thus exhibit novel physical properties.
Wenjing Miao, Hao Sheng, Jingang Wang
doaj   +1 more source

Absorption spectar of six composite resins analyzed by using a spectrophotometer [PDF]

open access: yesStomatološki glasnik Srbije, 2002
The dental profession increase utilization of light-curable restorative materials nowadays. Conventional halogen light sources with newly developed, high-tech light activating units are simultaneously present in modern dentistry.
Blažić Larisa   +2 more
doaj   +1 more source

The Absorption Spectrum of Vitamin A [PDF]

open access: yesNature, 1928
THE study of the oil-soluble vitamins has supplied overwhelming proof that both provitamin D and the antirachitic vitamin itself exhibit photochemical properties. As regards the action of light on vitamin A, the balance of opinion has, we believe, hitherto been in favour of an indirect oxidation process rather than a purely photochemical mechanism ...
R A, Morton, I M, Heilbron
openaire   +3 more sources

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