Publications by authors named "Artashes Khachatrian"

Article Synopsis
  • - This study focuses on new ionic liquids derived from imidazolium and choline containing 5-fluorouracil, exploring their effects on the structure and binding behavior with bovine serum albumin (BSA) using techniques like circular dichroism (CD) and fluorescence quenching.
  • - The research investigates how the length of alkyl chains in these ionic liquids impacts their interaction with BSA and their aggregation tendencies through dynamic light scattering (DLS).
  • - Results reveal that longer alkyl chains do not enhance binding to BSA, but one specific compound showed selectivity against cancer cells that regular 5-fluorouracil lacks, suggesting potential benefits in cancer treatment.
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In this work, we describe the synthesis, interactions with bovine serum albumin, and cytotoxicity of new ionic liquids based on 5-fluorouracil (API-ILs) with different cations (imidazolium, choline, isoquinolinium, guanidinium). The secondary and tertiary structure of BSA in solutions with different concentrations of API-ILs was monitored by the circular dichroism (CD) technique. The addition of API-ILs does not lead to structural changes in BSA.

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The paper reports the results of investigation intermolecular interactions between alanine and sarcosine anhydride in organic solvents. The absorption frequencies of cyclic dipeptide in solvents were measured by IR spectroscopy. The effect of Van der Waals interactions and the hydrogen bonding of solvents on absorption frequencies of the C=O group of anhydrides was discussed.

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In the present work, the thermochemistry of solution, solvation, and hydrogen bonding of cyclic amides in proton acceptor (B) and proton donor (RXH) solvents were studied. The infinite dilution solution enthalpies of δ-valerolactam, -methylvalerolactam, ε-caprolactam, and -methylcaprolactam were measured at 298.15 K.

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