Results 31 to 40 of about 124,338 (379)

Threshold behavior in metastable dissociation of multi-photon ionized thymine and uracil [PDF]

, 2017
Microsecond-timescale HNCO loss has been observed from single-color multi-photon ionized pyrimidine nucleobases in the gas phase. Photon energy thresholds for the metastable channels have been measured at 5.55 ± 0.02 eV for thymine and 5.57 ± 0.02 eV for
da Fonseca Cunha, T., Dampc, M., Eden, S., Lalande, M., Limão-Vieira, P., Mason, N.J., Pandey, R., Poully, J.C., Ryszka, M.   +8 more
core   +3 more sources

Photochemistry of Thymine in Protic Polar Nanomeric Droplets Using Electrostatic Embeding TD-DFT/MM

Molecules, 2021
Thymine photochemistry is important for understanding DNA photodamage. In the gas phase, thymine undergoes a fast non-radiative decay from S2 to S1. In the S1 state, it gets trapped for several picoseconds until returning to the ground-state S0. Here, we
Miquel Huix-Rotllant
doaj   +1 more source

Binding Group of Oligonucleotides on TiO 2 Surfaces: Phosphate Anions or Nucleobases? [PDF]

, 2021
Although the immobilization of oligonucleotides (nucleic acid) on mineral surfaces is at the basis of different biotechnological applications, an atomistic understanding of the interaction of the nucleic acid components with the titanium dioxide surfaces has not yet been achieved.
arxiv   +1 more source

Quantitative determination of the local structure of thymine on Cu(1 1 0) using scanned-energy mode photoelectron diffraction [PDF]

, 2007
The local adsorption structures of the surface species formed by interaction of thymine with a Cu(1 1 0) surface at room temperature, and after heating to not, vert, similar530 K, have been investigated.
Booth, Booth, Christ, D.P. Woodruff, F. Allegretti, Fritzsche, Fritzsche, Fritzsche, Fuggle, Fujii, Furukawa, Gieβel, Gieβel, Haiss, Hamai, Kang, Li, M. Polcik, McNutt, Pascal, Pendry, Rocco, Sawhney, Sayago, Stöhr, Söhnchen, Tanaka, Terborg, Weiss, Woodruff, Woodruff, Yamada   +31 more
core   +1 more source

Genetic variations in the human cannabinoid receptor gene are associated with happiness.

PLoS ONE, 2014
Happiness has been viewed as a temporary emotional state (e.g., pleasure) and a relatively stable state of being happy (subjective happiness level).
Masahiro Matsunaga, Tokiko Isowa, Kaori Yamakawa, Seisuke Fukuyama, Jun Shinoda, Jitsuhiro Yamada, Hideki Ohira   +6 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

Surface-Enhanced Hyper-Raman Spectra of Adenine, Guanine, Cytosine, Thymine, and Uracil

The journal of physical chemistry. C, Nanomaterials and interfaces, 2016
Using picosecond excitation at 1064 nm, surface-enhanced hyper-Raman scattering (SEHRS) spectra of the nucleobases adenine, guanine, cytosine, thymine, and uracil with two different types of silver nanoparticles were obtained. Comparing the SEHRS spectra
F. Madzharova, Z. Heiner, Marina Gühlke, J. Kneipp   +3 more
semanticscholar   +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

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

EFFECT OF PLANT DENSITY AND FOLIAR APPLICATION WITH THYMINE IN GROWTH, YIELD AND ITS QUALITY OF FOUR BROAD BEAN GENOTYPES [PDF]

مجلة الأنبار للعلوم الزراعية, 2019
A field experiment was conducted in one of the agricultural fields in the area of Zouayt, Sityih, Ramadi, Anbar province during the winter seasons of 2017 and 2018. The region of growth traits in some genotypes deferent for faba bean.
A. M. Halil, A. M. Ali
doaj   +1 more source