Examining the Impact of Squaric Acid as a Crosslinking Agent on the Properties of Chitosan-Based Films [PDF]
International Journal of Molecular Sciences, 2021 Hydrogels based on chitosan are very versatile materials which can be used for tissue engineering as well as in controlled drug delivery systems. One of the methods for obtaining a chitosan-based hydrogel is crosslinking by applying different components.
Magdalena Gierszewska +2 more
exaly +3 more sources
Structural Elucidation of the Triethylammonium Betaine of Squaric Acid [PDF]
Molbank, 2023 Betaines of squaric acid have gained research interest because of their structural and spectral properties. We elucidated the crystal and molecular structure of the triethylammonium betaine of squaric acid (1) by X-ray crystallography, IR, and NMR ...
Paul R. Palme +5 more
doaj +3 more sources
Cumhuriyet Science JournalA novel donepezil-squaric acid (DS) hybrid compound was designed, synthesized and biologically evaluated as multi-target-directed ligands against neurodegenerative disease by fusing a fragment of donepezil (D) and squaric acid (S).
Derya Kılıçaslan
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Revision of the crystal structure of `bis(glycine) squaric acid'
IUCrData, 2018 The crystal structure of `bis(glycine) squaric acid' [Tyagi et al. (2016). RSC Adv. 6, 24565–24576], is revised. Re-refinement of the structure against the original X-ray intensity data after correct placement of the donor H atoms proves that the ...
Rüdiger W. Seidel
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Electric field induced polarization rotation in squaric acid crystals revisited
Condensed Matter Physics, 2022 Using the previously developed model we revisit the problem of the electric field induced polarization rotation in antiferroelectric crystals of squaric acid.
A. P. Moina
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High Pressure Spectroscopic Investigation on Proton Transfer in Squaric Acid and 4,4′-Bipyridine Co-crystal [PDF]
Scientific Reports, 2017 In attempt to the obtain detailed geometric information of proton transfer compound (subsequently denote as SQBP) formed between squaric acid (SQ)and 4,4′-bipyridine(BP), and to investigate the mechanisms of pressure-induced double proton transfer and ...
Zhiwei Ma +4 more
doaj +2 more sources
Functionalized Cytisine Squaramides: Synthesis, Structural Elucidation, and Co-Crystallization [PDF]
MoleculesSynthesis of bifunctional cytisine–squaramide derivatives bearing a single amino acid moiety has revealed an unexpected and intriguing chemical challenge. During modification of cytisine squaramates with α-amino acids, base-sensitive amido esters readily
Anna K. Przybył +3 more
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Synthesis and Structural Analysis of New (−)-Cytisine Squaramides [PDF]
MoleculesDerivatives of squaric acid are valuable building blocks with promising applications in the investigation of various bioactivities. In this study, we focus on squaramides functionalized with the (−)-cytisine moiety, an alkaloid known for its bioactivity ...
Anna K. Przybył +2 more
doaj +2 more sources
Squaric acid as a new chemoselective moiety for mass spectrometry-based metabolomics analysis of amines. [PDF]
RSC Chem Biol, 2021 The investigation of microbiome-derived metabolites is important to understand metabolic interactions with their human host. New methodologies for mass spectrometric discovery of undetected metabolites with unknown bioactivity are required.
Lin W +6 more
europepmc +2 more sources
Erratum to: NIR-II light-activated two-photon squaric acid dye with type I photodynamics for antitumor therapy [PDF]
Nanophotonics, 2022 Wang Kexin +7 more
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