Results 31 to 40 of about 106,654 (267)

Dual-tip-enhanced ultrafast CARS nanoscopy [PDF]

, 2013
Coherent anti-Stokes Raman scattering (CARS) and, in particular, femtosecond adaptive spectroscopic techniques (FAST CARS) have been successfully used for molecular spectroscopy and microscopic imaging.
, Aeschlimann M, Agio M, Alexander M Sinyukov, Alexei V Sokolov, Biagioni P, Bin Cao, Charles W Ballmann, Dmitri V Voronine, Mukamel S, Palik E D, Potma E O, Rice S A, Ru E C L, Schluecker S, Shapiro M   +15 more
core   +3 more sources

Studies on the Two Thymine Residues in the Catalytic Core of 10-23 DNAzyme: The Impact on the Catalysis of Their 5-Substituted Functional Groups

Molecules, 2017
In the 15-mer catalytic core of 10-23 DNAzyme, each residue contributes to the catalytic conformation differently. Here, the critically conserved T4 and the least conserved T8 were modified on their 5-position with hydroxyl, imidazolyl, and amino groups ...
Pengyu Li, Shanshan Du, Yang Li, Junlin He   +3 more
doaj   +1 more source

Platinum(II)–dithiocarbamate complexes with phosphines: Synthesis, characterization and precursor for Pt nanoparticles using ultrasound assisted method [PDF]

E3S Web of Conferences
The reaction between Na2[PtCl4] and thymine bisdithiocarbamate (tdtc) in a 2:1 molar ratio (Metal:Ligand) produced a square planar complex called [Pt(tdtc)2]n (1).
Al-Douri Mawahib Q., Yaseen Asra’a I., Mohammed Modher Y.   +2 more
doaj   +1 more source

1,3-Bis(2-oxopropyl)thymine

IUCrData, 2020
In the title compound [systematic name: 5-methyl-1,3-bis(2-oxopropyl)pyrimidine-2,4(1H,3H)-dione], C11H14N2O4, the two 2-oxopropyl groups are nearly perpendicular to the planar thymine unit. One methyl group of oxopropyl substituent is disordered. In the
Bogdan Doboszewski, Alexander Y. Nazarenko, Fábio da Paixão Soares   +2 more
doaj   +1 more source

Synthesis of Cyclobutane Analogue 4: Preparation of Purine and Pyrimidine Carbocyclic Nucleoside Derivatives

Molecules, 2019
The coupling of 2-bromo-3-benzoyloxycyclobutanone with purine under basic conditions produces two regioisomers consisting of the N-7 and N-9 alkylated products in equal amounts in their racemic forms.
Noha Hasaneen, Abdelaziz Ebead, Muhammad Murtaza Hassan, Hanan Afifi, Howard Hunter, Edward Lee-Ruff, Nadia S. El-Gohary, Azza R. Maarouf, Ali A. El-Emam   +8 more
doaj   +1 more source

Separation of oxidatively damaged DNA Nucleobases and Nucleosides on Packed and Monolith C18 Columns by HPLC-UV-EC [PDF]

, 2008
This study involves the incorporation of a commercially available Phenomenex Onyx C18 monolith column into the separation and detection of oxidative DNA damage.
Kelly, Michele C., Smyth, Malcolm R., White, Blánaid   +2 more
core   +1 more source

Photoinduced Formation Mechanism of the Thymine–Thymine (6–4) Adduct

The Journal of Physical Chemistry B, 2013
The photoinduced mechanism leading to the formation of the thymine-thymine (6-4) photolesion has been studied by using the CASPT2//CASSCF approach over a dinucleotide model in vacuo. Following light absorption, localization of the excitation on a single thymine leads to fast singlet-triplet crossing that populates the triplet (3)(nπ*) state of thymine.
Angelo Giussani, Luis Serrano Andrés, Manuela Merchán, Daniel Roca Sanjuán, GARAVELLI, MARCO   +4 more
openaire   +3 more sources

Low-energy Electron Collisions with Gas-phase Thymine Molecule

Medžiagotyra, 2011
The paper presents an investigation of the negative ion formation of the thymine (T) molecule. The formation of negative ions by electron impact of this molecule is measured.
Irina V. CHERNYSHOVA, Jeno E. KONTROS, Otto B. SHPENIK, Jelena TAMULIENE, Mindaugas L. BALEVICIUS   +4 more
doaj   +1 more source

Simultaneous Determination of Four DNA bases at Graphene Oxide/Multi-Walled Carbon Nanotube Nanocomposite-Modified Electrode

Micromachines, 2020
In this study, we developed a modified glassy carbon electrode (GCE) with graphene oxide, multi-walled carbon nanotube hybrid nanocomposite in chitosan (GCE/GO-MWCNT-CHT) to achieve simultaneous detection of four nucleobases (i.e., guanine (G), adenine ...
Shuting Wang, Celia Ferrag, Meissam Noroozifar, Kagan Kerman   +3 more
doaj   +1 more source

Phenotypic and genotypic characterisation of thymine auxotrophy in Escherichia coli isolated from a patient with recurrent bloodstream infection.

PLoS ONE, 2022
IntroductionThymine auxotrophic in vitro mutants of Escherichia coli were first reported in the mid-20th century. Later, thymine-dependent clinical strains of E. coli as well as other Enterobacterales, Enterococcus faecalis and Staphylococcus aureus have
Aleksandra Jakovljev, Jan Egil Afset, Kjersti Haugum, Harald Otto Steinum, Torunn Gresdal Rønning, Ørjan Samuelsen, Christina Gabrielsen Ås   +6 more
doaj   +1 more source