Results 61 to 70 of about 1,063 (182)
Journal of Biomedical Materials Research Part A, Volume 112, Issue 2, Page 288-295, February 2024.Abstract Immunoisolation of pancreatic islets in alginate microcapsules allows for transplantation in the absence of immunosuppression but graft survival time is still limited. This limited graft survival is caused by a combination of tissue responses to the encapsulating biomaterial and islets. A significant loss of islet cells occurs in the immediate
Alexandra M. Smink +4 more
wiley +1 more source
Electrochemical investigation of 2-thiohydantoin derivatives as corrosion inhibitors for mild steel in acidic medium [PDF]
, 2021 Four 2-thiohydantoin derivatives were synthesized and their corrosion inhibition properties on mild steel (MS) in 0.5M HCl solution was evaluated using usual gravimetric and electrochemical methods (weight loss, potentiodynamic polarization ...
Cvetković, Vesna S. +5 more
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Food Science &Nutrition, Volume 12, Issue 1, Page 471-480, January 2024.The exposure systems of glycidol‐related chemicals on the formation of glycidol‐hemoglobin adducts diHOPrVal were compared. DiHOPrVal formation was observed using several chemicals other than glycidol with different behaviors in vitro and in vivo. However, in both cases, the amount of diHOPrVal produced was very small compared with glycidol. This study
Yuko Shimamura +4 more
wiley +1 more source
Site-specificity of pea histone acetyltransferase B in vitro [PDF]
, 1993 Histone acetyltransferase B from pea embryonic axes has been purified approximately 300-fold by a combination of chromatographic procedures, including affinity chromatography on histone-agarose.
Franco Vera, Luis +3 more
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Synthesis and Characterization of Various Amino Acid Derived Thiohydantoins [PDF]
, 2018 Hydantoins and their sulfur containing analogues, thiohydantoins, are cyclic ureides that have attracted huge attention ever since their discovery. Most of them are biologically active compounds and several points of structural diversity have made them ...
Stanić, Petar +2 more
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Chemical Reactivity of 2-Thiohydantoin Derivatives
Zeitschrift für Naturforschung B, 1977 Treatment of 5-arylazo-2-thiohydantoins (2 a-c) with formaldehyde and the appropriate amine in ethyl alcohol led to the formation of the corresponding Mannich bases 3a-i. 2 a-c reacted with methyl bromoacetate and/or chloroacetic acid to give the esters 5 a-c and/or the free acids 5d-f, respectively. 5e also obtained by treating 5 b with aqueous sodium
A. F. A. Shalaby +2 more
openaire +1 more source
Electrochemical detection methods for biologically-active molecules [PDF]
, 1988 Pulsed Amperometric Detection (PAD) has proven to be applicable to the determination of a number of organic compounds. One difficulty has been calibration of PAD for quantitative analysis over a wide concentration range.
Welch, Lawrence E.
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A new route to the imidazole-2-thiones from 2-thiohydantoins. Implications in the study of ergothioneine [PDF]
, 1968 1. 2-Thiohydantoins are reduced by borohydrides to 4(5)-hydroxyimidazolidine-2-thiones, which eliminate water in acid to form imidazole-2-thiones. Both steps take place in mild conditions, in high yield.
J. E. Scott, Gillian Henderson
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Synthesis, biological activity and electron impact of mass spectra of trisubstituted-2-thiohydantoins [PDF]
3-[1-(2-Hydroxyphenyl)ethylideneamino]-2-thiohydantoin (2) was prepared via cyclization of 2-hydroxyacetophenone thiosemicarbazone (1) with ethyl chloroacetate in the presence of fused sodium acetate. The chemical behaviour of 2 towards acetic anhydride,
Abd El-Meniem, Mohamad +2 more
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