Results 21 to 30 of about 2,989 (293)
Antioxidants, 2022 The study presents the achievement of a new assembly with antioxidant behaviour based on a copolymacrolactone structure that encapsulates erythritol (Eryt).
Aurica P. Chiriac +9 more
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Compounds, 2022 One-step reactions between squaric acid and pyrroles, such as 3-ethyl-2,4-dimethyl-pyrrole and 1,2,5-trimethylpyrrole, in water provide the corresponding pyrrol-2-yl- and pyrrol-3-yl-containing semisquaraines in high yields. These semisquaraines serve as
Daniel D. Ta +2 more
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Effects of diagonal strains and H-bond geometry in antiferroelectric squaric acid crystals
Condensed Matter Physics, 2020 The proton ordering model of the phase transition and physical properties of antiferroelectric crystals of squaric acid is modified by taking into account the influence of diagonal lattice strains and of the local geometry of hydrogen bonds, namely of ...
A.P. Moina
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Microbiology Spectrum, 2022 The clonal bacterial species Acinetobacter baumannii is an emerging multidrug-resistant pathogen which causes high-lethality infections. Cells of A. baumannii are surrounded by the type-specific capsular polysaccharide (CPS), which provides resistance to
Natalia Rudenko +13 more
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A perspective on using experiment and theory to identify design principles in dye-sensitized solar cells [PDF]
, 2018 Dye-sensitized solar cells (DSCs) have been the subject of wide-ranging studies for many years because of their potential for large-scale manufacturing using roll-to-roll processing allied to their use of earth abundant raw materials.
Abuabara SG +18 more
core +4 more sources
Case Reports in Dermatology, 2021 Contact immunotherapy with several sensitizing chemicals such as diphenylcyclopropenone (DPCP) or squaric acid dibutyl ester (SADBE) have been used for the treatment of recalcitrant or multiple warts. Here, we report a case of multiple verrucae vulgaris (
Gyohei Egawa +2 more
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Phase transition in squaric acid
Journal of Physics C: Solid State Physics, 1976 It is shown that one cannot explain the phase transition at 97.7 degrees C in squaric acid by using a planar eight- and sixteen-vertex model. It is argued that the inclusion of dipole forces between hydrogen bonds will yield a satisfactory explanation for the occurrence of the phase transition.
Abraham, D, Heilmann, O
openaire +2 more sources
Sum frequency generation spectroscopy of the attachment disc of a spider [PDF]
, 2021 The pyriform silk of the attachment disc of a spider was studied using infrared-visible vibrational sum frequency generation (SFG) spectroscopy. The spider can attach dragline and radial lines to many kinds of substrates in nature (concrete, alloy, metal,
Hien, Khuat Thi Thu +5 more
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Crystal structure of 2-(azaniumylmethyl)pyridinium bis(hydrogen squarate)
Acta Crystallographica Section E: Crystallographic Communications, 2017 The asymmetric unit of the title compound, C6H10N22+·2C4HO4−, comprises two hydrogen squarate (Hsq−; systematic name: 2-hydroxy-3,4-dioxocyclobutanolate) anions and a 2-(azaniumylmethyl)pyridinium dication.
Nina Salamzadeh +3 more
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Bis(3,5-diamino-4H-1,2,4-triazol-1-ium) 3,4-dioxocyclobutane-1,2-diolate
Acta Crystallographica Section E, 2013 The asymmetric unit of the title compound, 2C2H6N5+·C4O42−, contains two 3,5-diamino-4H-1,2,4-triazolium cations and one squarate dianion. The squaric acid molecule donated one H atom to each of the two 3,5-diamino-1,2,4-triazole molecules at ...
Ededet Eno +4 more
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