Results 1 to 10 of about 1,375,222 (316)

Explaining the pseudogap through damping and antidamping on the Fermi surface by imaginary spin scattering

open access: yesCommunications Physics, 2022
The authors address a long-standing puzzle of pseudogap phenomenon observed in high temperature cuprates. Based on numerical calculations for the Hubbard model with analytic considerations, they find that a combination of strong-coupling ...
Friedrich Krien   +4 more
doaj   +1 more source

Effects of Alkaline Solvent Type and pH on Solid Physical Properties of Carrageenan from Eucheuma cottonii

open access: yesGels, 2023
The effects of alkali type and pH on the physical properties of carrageenan have been extensively studied. However, their effects on certain characteristics of solid-state properties of carrageenan have not been identified.
Rival Ferdiansyah   +4 more
doaj   +1 more source

Publisher Correction: Sub-stoichiometric 2D covalent organic frameworks from tri- and tetratopic linkers

open access: yesNature Communications, 2019
An amendment to this paper has been published and can be accessed via a link at the top of the paper.
Tanmay Banerjee   +8 more
doaj   +1 more source

Sub-stoichiometric 2D covalent organic frameworks from tri- and tetratopic linkers

open access: yesNature Communications, 2019
Using complementary linkers as building blocks in the design of 2D covalent organic frameworks (COFs) limits the formation of compositionally and structurally complex networks.
Tanmay Banerjee   +8 more
doaj   +1 more source

Improving Nefiracetam Dissolution and Solubility Behavior Using a Cocrystallization Approach

open access: yesPharmaceutics, 2020
In this work, we are the first to identify thirteen cocrystals of Nefiracetam, a poor water-soluble nootropic compound. Three of which were obtained with the biocompatible cocrystallization agents citric acid, oxalic acid, and zinc chloride. These latter
Xavier Buol   +6 more
doaj   +1 more source

Synthesis and Characterization of Bi13B0.48V0.49-xPxO21.45 and Efficient Catalyst for the Synthesis of 2,3-dihydroquinazolin-4(1H)-ones Derivatives Synthesis

open access: yesBulletin of Chemical Reaction Engineering & Catalysis, 2020
A new compound has been found in the system Bi13B0.48V0.49-x PxO21.45 (with 0≤x≤0.34), were prepared by the direct solid-state reaction of Bi2O3, (NH4)2HPO4, V2O5, and B2O3. This material melts congruently and it crystallize with the sillenite structure (
Hanane Barebita   +5 more
doaj   +1 more source

Novel method of phosphorescent strontium aluminate coating preparation on aluminum

open access: yesMaterials & Design, 2018
This study presents a novel approach to produce phosphorescent coatings on metal surfaces.Strontium aluminates are the most popular modern phosphorescent materials exhibiting long afterglow at room temperature and a broad spectral distribution of ...
Ivita Bite   +9 more
doaj   +1 more source

Evaluation of thermal testing and X-ray diffraction of Ka0,5Na0,5NbO3

open access: yesGravity: Jurnal Ilmiah Penelitian dan Pembelajaran Fisika, 2020
The structure of perovskite-based material contained in the niobate and titanate. The fabric was a perovskite crystal structure having the formula ABO3. Ferroelectric and piezoelectric materials had a perovskite structure.
Amalia Ma'rifatul Maghfiroh
doaj   +1 more source

Understanding disorder and linker deficiency in porphyrinic zirconium-based metal–organic frameworks by resolving the Zr8O6 cluster conundrum in PCN-221

open access: yesNature Communications, 2021
Zirconium-based metal–organic frameworks have defective structures that are useful in catalysis and gas storage. Here, the authors study the interplay between cluster disorder and linker vacancies in PCN-221 and propose a new structure model with tilted ...
Charlotte Koschnick   +15 more
doaj   +1 more source

Microsphere Solid‐State Biolasers [PDF]

open access: yesAdvanced Optical Materials, 2017
Biolasers obtained from biomaterials are attracting a wealth of interest for their potential as future biosensors with enhanced sensitivity, and advanced cell tracking. Here, miniature biolasers are reported, which are formed by bovine serum albumin (BSA) protein and biosourced polysaccharides derived from land plants such as cellulose and pectin ...
Ta, van Duong   +3 more
openaire   +3 more sources

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