4 documents found, page 1 of 1
4-hydroxyquinolin-2(1H)-one isolated in cryogenic argon and xenon matrices: tau...
Secrieru, Alina; Lopes, S.; Nikitin, T.; Cristiano, Maria de Lurdes; Fausto, R.4-Hydroxyquinolin-2(1H)-one (4HQ2O) was synthesized, isolated in cryogenic matrices (argon and xenon), and studied by infrared spectroscopy. Quantum chemical calculations carried out at the DFT(B3LYP)/6-311++G (3df,3pd) level of theory were used to determine the conformational and tautomeric properties of the molecule. Two tautomeric forms were identified in the as-deposited matrices with the help of the theore...
Self-assembled diphenylalanine peptide microtubes covered by reduced graphene o...
Ivanov, M. S.; Khomchenko, V. A.; Salimian, M.; Nikitin, T.; Kopyl, S.; Buryakov, A. M.; Mishina, E. D.; Salehli, F.; Marques, P. A. A. P.
Low-temperature photoluminescence in self-assembled diphenylalanine microtubes
Nikitin, T.; Kopyl, S.; Shur, V. Ya; Kopelevich, Y. V.; Kholkin, A. L.Bioinspired self-assembled structures are increasingly important for a variety of applications ranging from drug delivery to electronic and energy harvesting devices. An important class of these structures is diphenylalanine microtubes which are potentially important for optical applications including light emitting diodes and optical biomarkers. In this work we present the data on their photoluminescent proper...
Pyroelectric effect and polarization instability in self-assembled diphenylalan...
Esin, A.; Baturin, I.; Nikitin, T.; Vasilev, S.; Salehli, F.; Shur, V. Ya.; Kholkin, A. L.The natural ability of peptides and proteins to self-assemble into elongated fibrils is associated with several neurogenerative diseases. Diphenylalanine (FF) tubular structures that have the same structural motif as in Ab-amyloid peptide (involved in Alzheimer's disease) are shown to possess remarkable physical properties ranging from piezoelectricity to electrochemical activities. In this work, we also discov...