Results 311 to 320 of about 124,338 (379)

Photodissociation of thymine

Physical Chemistry Chemical Physics, 2006
We discuss the photochemistry and photodissociation dynamics of thymine as revealed by two-colour photofragment Doppler spectroscopy and by one-colour slice imaging. Thymine is optically excited into the pipi* state, known to deactivate quickly.
Michael Schneider, Ingo Fischer, Luis R. Lago, F. Johannes Buback, R. Maksimenka, Theofanis N. Kitsopoulos   +5 more
openaire   +3 more sources

Radiation-induced Formation of Thymine-thymine Crosslinks

International Journal of Radiation Biology and Related Studies in Physics, Chemistry and Medicine, 1984
The formation of dimers upon gamma-irradiation of thymine, thymidine and thymidine-5'-monophosphate in N2O-saturated aqueous solution is reported. A method using capillary gas chromatography-mass spectrometry was developed for their separation and identification.
Miral Dizdaroglu, Michael G. Simic
openaire   +3 more sources

Electrochemical Aptasensor Based on Sulfur-Nitrogen Codoped Ordered Mesoporous Carbon and Thymine-Hg2+-Thymine Mismatch Structure for Hg2+ Detection.

ACS Sensors, 2018
A renewable electrochemical aptasensor was proposed for super-sensitive determination of Hg2+. The novel aptasensor, based on sulfur-nitrogen codoped ordered mesoporous carbon (SN-OMC) and thymine-Hg2+-thymine (T-Hg2+-T) mismatch structure, used ...
Cui Lai, Shiyu Liu, Chen Zhang, G. Zeng, Danlian Huang, L. Qin, Xigui Liu, Huan Yi, Rongzhong Wang, F. Huang, Bisheng Li, Tianyu Hu   +11 more
semanticscholar   +1 more source

Conjugated Semiconducting Polymer with Thymine Groups in the Side Chains: Charge Mobility Enhancement and Application for Selective Field-Effect Transistor Sensors toward CO and H2S

Chemistry of Materials, 2019
Conjugated polymers with both high charge mobilities and responsive functionality have received increasing attention because of their promising applications in organic electronic devices and chemo-/biosensors.
Yizhou Yang, Zitong Liu, Liangliang Chen, J. Yao, Gaobo Lin, Xisha Zhang, Guanxin Zhang, Deqing Zhang   +7 more
semanticscholar   +1 more source

Bioinspired Adhesive Hydrogel Driven by Adenine and Thymine.

ACS Applied Materials and Interfaces, 2017
Bioinspired strategies have drawn much attention for designing intelligent hydrogels with promising performance. Herein, we present a bioinspired adhesive hydrogel driven by adenine and thymine, which are the basic units of DNA.
Xin Liu, Qin Zhang, Zijian Gao, Ruibin Hou, Guanghui Gao   +4 more
semanticscholar   +1 more source

Facially-selective thymine thymine photodimerization in TTT triads

Photochemical & Photobiological Sciences, 2012
Irradiation of alkane-linked DNA hairpins possessing TTT steps with flanking purine bases yields products identified as the cis-syn (2 + 2) dimers formed between the central thymine and its 3'- and 5'-neighbors. Selective formation of the 3'-dimer is attributed to ground state conformational effects and electron transfer quenching by purine bases.
Frederick D. Lewis, Zhengzheng Pan, Mahesh Hariharan, Mahesh Hariharan, Prakash P. Neelakandan   +4 more
openaire   +3 more sources

STRUCTURE OF A THYMINE‐THYMINE ADDUCT FORMED BY MENADIONE PHOTOSENSITIZATION

Photochemistry and Photobiology, 1993
Abstract— The structure of one of the dithymine adducts formed by near‐UV photosensitization of aqueous oxygenated thymine in the presence of 2‐methyl‐ 1, 4‐naphthoquinone is reported. The compound, 6′β‐hydroxy‐5′β‐1 ‐ [5‐methylpyrimidinyl‐ 2,4‐dione]‐5′‐6′‐dihydrothymine has one thymine ring (ring I) linked through the 1‐nitrogen atom to the C5′ atom ...
Henry Katz, Jenny P. Glusker, William C. Stallings   +2 more
openaire   +3 more sources

Photochemistry of thymine dimers

Journal of Molecular Biology, 1962
The extinction coefficient and the quantum yield of photodissociation of a thymine dimer obtained by irradiating thymine in frozen solution have been measured for the range 225 to 289 mμ. The dinucleotides di(thymidine-5′-phosphate) (pTpT), cyclic dithymidylic acid Download : Download full-size image and thymidylyl-(5′−3′)-thymidine ...
Max Delbrück, S.A. Rapaport, H.E. Johns
openaire   +3 more sources

Conical Intersections in Thymine

The Journal of Physical Chemistry A, 2006
The mechanisms which are responsible for the radiationless deactivation of the npi* and pipi* excited singlet states of thymine have been investigated with multireference ab initio methods (the complete-active-space self-consistent-field (CASSCF) method and second-order perturbation theory with respect to the CASSCF reference (CASPT2)) as well as with ...
Andrzej L. Sobolewski, Serhiy Perun, Wolfgang Domcke   +2 more
openaire   +3 more sources

The permanganate oxidation of thymine

Biochimica et Biophysica Acta (BBA) - Nucleic Acids and Protein Synthesis, 1970
Abstract 1. Mild permanganate oxidation of thymine yielded cis-thymine glycol (cis-5,6-dihydroxy-5,6-dihydrothymine) and 5-hydroxy-5-methylbarbituric acid. Under certain reaction conditions, only these two compounds were the products of the reaction. 2.
Shigeru Iida, Hikoya Hayatsu
openaire   +3 more sources