Browsing Moksliniai ir apžvalginiai straipsniai / Research and Review Articles by Research field "N 003 - Chemija / Chemistry"

Now showing items 1-20 of 210

    • A comparison of some thermodynamic quantities for hydrocarbons and mercaptans 

      Birmantas, Jonas; Laukaitis, Antanas; Blynas, Juozas Justinas (Chemija, 2002)
      Empirical equations were derived for determining the dependency of formation enthalpy,entropy and heat capacity on the number of carbon atoms present in the molecule for hydracarbons and mercaptans. It was shown that ...

    • A minimal model of haemoglobin oxygenation kinetics 

      Juška, Alfonsas (Biologija, 2004)
      A mathematical model based on the current understanding of cooperativity in oxygen binding to haemoglobin and relating the saturation curve of haemoglobin oxygenation to dissociation constants characterizing the affinities ...

    • A minimal model of non-hyperbolic enzyme and receptor kinetics 

      Juška, Alfonsas (Biochemical and Biophysical Research Communications, 2003)
      A simplified version of P.W. Kühl's Recovery Model [Biochem. J. 298 (1994) 171–180] has been developed in which the duration of the recovery phase of receptor or enzyme (macro)molecule was assumed to be a random value ...

    • A new experimental model for neuronal and glial differentiation using stem cells derived from human exfoliated deciduous teeth 

      Jarmalavičiūtė, Akvilė; Tunaitis, Virginijus; Strainienė, Eglė; Aldonytė, Rūta; Ramanavičius, Arūnas; Venalis, Algirdas; Magnusson, Karl-Eric; Pivoriūnas, Augustas (Journal of molecular neuroscience, 2013)
      Stem cells isolated from human adult tissues represent a promising source for neural differentiation studies in vitro. We have isolated and characterized stem cells from human exfoliated deciduous teeth (SHEDs). These ...

    • A red-emitting thiophene-modified BODIPY probe for fluorescence lifetime-based polarity imaging of lipid droplets in living cells 

      Žvirblis, Rokas; Maleckaitė, Karolina; Dodonova-Vaitkūnienė, Jelena; Jurgutis, Džiugas; Žilėnaitė, Rugilė; Karabanovas, Vitalijus; Tumkevičius, Sigitas; Vyšniauskas, Aurimas (Journal of materials chemistry B, 2023)
      Intracellular polarity in lipid droplets as well as other organelles may provide useful knowledge about various processes taking place in live cells. Therefore, small fluorophores capable of visualising polarity are ...

    • A series of new luminescent non-planar 1,8-naphthyridine derivatives giving coloured and close-to-white electroluminescence spectra 

      Urbanavičiūtė, Indrė; Višniakova, Sigita; Dirsytė, Justina; Juška, Giedrius; Lenkevičiūtė-Vasiliauskienė, Bronė; Bužavaitė, Ernesta; Žilinskas, Albinas; Arlauskas, Kęstutis (Journal of luminescence, 2017)
      We report a synthesis of 37 new 1,8-naphthyridine based compounds having a non-planar bicyclic moiety (bicyclo[3.3.1]nonane, bicyclo[3.3.0]octane and camphor). We measured energetic characteristics (EHOMO=[−5.9; −5.4] eV, ...

    • A thermodynamic investigation of pentanethiol pyrolysis reaction 

      Birmantas, Jonas; Laukaitis, Antanas; Blynas, Juozas Justinas (Chemija, 2002)
      The most reliable pentanethiol pyrolysis reaction product formation probabilities were investigated when hydrogen sulfide , lower molecular mass thiols and sulfur were evolved. It was found that up to 850 K the most reliable ...

    • Alcohol oxidase from the yeast Pichia pastoris – a potential catalyst for organic synthesis 

      Dienys, Gervydas; Jarmalavičius, Saulius; Budrienė, Saulutė; Čitavičius, Donaldas Jonas; Sereikaitė, Jolanta (Journal of molecular catalysis B : Enzymatic, 2003)
      Alcohol oxidase (AO) from the methylotropic yeast Pichia pastoris was isolated and investigated. Wide substrate specificity is characteristic for this enzyme. Unbranched primary alcohols are effectively oxidized by AO to ...

    • Alternating current susceptibility and magnetisation of nanocrystalline Co2MnSi Heusler alloy films 

      Vengalis, Bonifacas; Maneikis, Andrius; Grigaliūnaitė-Vonsevičienė, Gražina; Juškėnas, Remigijus; Selskis, Algirdas (Lithuanian journal of physics, 2020)
      The Co2MnSi (CMS) Heusler alloy films with thickness d = 90 ÷ 110 nm were grown by DC magnetron sputtering on both nonheated and heated Si(100) and MgO(100) substrates. The films grown (annealed) at T ≥ 400°C demonstrated ...

    • Amperometric immunosensor for diagnosis of BLV infection 

      Kurtinaitienė, Bogumila; Vasiliauskienė, Dovilė; Laurinavičius, Valdas Stanislovas; Ramanavičienė, Almira; Ramanavičius, Arūnas (Biosensors & bioelectronics, 2008)
      A new amperometric immunosensor for detection of antibodies against bovine leukemia protein (gp51) was designed. The detection of antibody-antigen complex formation was based on application of secondary antibodies labeled ...

    • An experimental and theoretical study of Coprinus cinereus peroxidase-catalyzed biodegradation of isoelectronic to dioxin recalcitrants 

      Žiemys, Artūras; Kulys, Juozas (Journal of molecular catalysis B : Enzymatic, 2007)
      Isoelectronic to dibenzo-p-dioxin (DBD) compounds (ID) containing nitrogen and/or sulfur atom instead of oxygen atom can be oxidized in the presence of fungal peroxidase. To elucidate the structure/activity relationship ...

    • Analysis and modification of nonhyperbolic kinetic models 

      Juška, Alfonsas (International journal of chemical kinetics : John Wiley & Sons INC, 2008)
      A nonhyperbolic model of Rabin (Biochem J 1967, 102, 22C-23C) in which four conformational states are considered has been simplified to the three-state one. Only multistate models (if the concentration of enzyme or receptor ...

    • Antimicrobial activity of L-lysine and poly-L-lysine with pulsed electric fields 

      Švedienė, Jurgita; Novickij, Vitalij; Žalnėravičius, Rokas; Raudonienė, Vita; Markovskaja, Svetlana; Novickij, Jurij; Paškevičius, Algimantas (Applied science, 2021)
      For the first time, the possibility to use L-lysine (Lys) and poly-L-lysine (PLL) as additives with pulsed electric fields (PEF) for antimicrobial treatment is reported. The antimicrobial efficacy of Lys and PLL for ...

    • Antropogeninių taršos šaltinių įtaka upės Armonos vandens kokybei 

      Stankevičienė, Inga; Jurkevičiūtė, Jolanta; Latvėnas, Marius; Čerčikienė, Irena (Mokslo taikomieji tyrimai Lietuvos kolegijose, 2016)
      Pagal fizikinių-cheminių kokybės elementų rodiklius upių ekologinė būklė klasifikuojama į labai gerą, gerą, vidutinę, blogą ir labai blogą. Apie pusė Lietuvos upių neatitinka geros arba labai geros ekologinės būklės. Upių ...

    • Assessment of cytochrome c and chlorophyll a as natural redox mediators for enzymatic biofuel cells powered by glucose 

      Samukaitė-Bubnienė, Urtė; Žukauskas, Šarūnas; Ratautaitė, Vilma; Vilkienė, Monika; Mockevičienė, Ieva; Liustrovaitė, Viktorija; Drobysh, Maryia; Lisauskas, Aurimas; Ramanavičius, Simonas; Ramanavičius, Arūnas (Energies, 2022)
      The development of new high-power biofuel cells has been limited in the past by slow or indirect charge transfer. In this study, enzymatic biofuel cell (EBFC) systems were explored with different materials used to evaluate ...

    • Assessment of Rhizobium anhuiense bacteria as a potential biocatalyst for microbial biofuel cell design 

      Reinikovaitė, Viktorija; Žukauskas, Šarūnas; Žalnėravičius, Rokas; Ratautaitė, Vilma; Ramanavičius, Simonas; Bučinskas, Vytautas; Vilkienė, Monika; Ramanavičius, Arūnas; Samukaitė-Bubnienė, Urtė (Biosensors, 2023)
      The development of microbial fuel cells based on electro-catalytic processes is among the novel topics, which are recently emerging in the sustainable development of energetic systems. Microbial fuel cells have emerged as ...

    • Association of TNF in water solution 

      Kvederas, R; Mištinienė, E.; Sereikaitė, Jolanta; Lukša, V.; Dienys, Gervydas; Bumelis, Vladas Algirdas (Biologija, 2000)

    • Aukštatemperatūrinio rišiklio iš skystojo stiklo, ferochromo šlako, aliuminatinio cemento ir SiO2mikrodulkių termodinaminė analizė 

      Kazragis, Algimantas; Zalieckienė, Elena; Juknevičiūtė, Aušra; Stonys, Rimvydas; Goberis, Stasys Algimantas (Cheminė technologija, 2003)
      Termodinamikos metodais išnagrinėta galima aukštatemperatūrio rišiklio komponentų - skystojo stiklo, ferochromo šlako, aliuminatinio cemento ir SiO2 mikrodulkių - sąveika esant kambario temperatūrai, taip pat kaitinant ...

    • B-Scalar sensor using CMR effect in thin polycrystalline manganite films 

      Žurauskienė, Nerija; Balevičius, Saulius; Stankevič, Voitech; Keršulis, Skirmantas; Schneider, Markus; Liebfried, Oliver; Plaušinaitienė, Valentina; Abrutis, Adulfas (IEEE Transactions on Plasma Science: 15th International Symposium on Electromagnetic Launch (EML) Technology Royal Military Acad (RMA), Brussels, BELGIUM, MAY 17-20, 2010, 2011)
      We present the design and the main characteristics of the CMR-B-scalar sensor based on polycrystalline La0.83Sr0.17MnO3 films. The sensor active volume is only 400 μm × 50 μm × 0.4 μm, and it is able to measure a magnetic ...

    • Behavior of PQQ glucose dehydrogenase on Prussian blue-modified carbon electrode 

      Laurinavičius, Valdas Stanislovas; Kurtinaitienė, Bogumila; Stankevičiūtė, Rasa (Electroanalysis, 2008)
      Glucose sensitive biosensor containing pyrroloquinoline quinone (PQQ)-dependent glucose dehydrogenase immobilized on Prussian blue (PB)-modified graphite electrode was designed. Properties of the biosensor were investigated ...