Results 21 to 30 of about 124,338 (379)

Thymine-Modified Nanocarrier for Doxorubicin Delivery in Glioblastoma Cells

open access: yesMolecules, 2023
Brain tumor glioblastoma is one of the worst types of cancer. The blood–brain barrier prevents drugs from reaching brain cells and shields glioblastoma from treatment.
Albina Y. Ziganshina   +10 more
doaj   +1 more source

Meteorites and the RNA World: Synthesis of Nucleobases in Carbonaceous Planetesimals and the Role of Initial Volatile Content [PDF]

open access: yesThe Astrophysical Journal, 2023, 942, 50, 2021
Prebiotic molecules, fundamental building blocks for the origin of life, have been found in carbonaceous chondrites. The exogenous delivery of these organic molecules onto the Hadean Earth could have sparked the polymerization of the first RNA molecules in Darwinian ponds during wet-dry cycles.
arxiv   +1 more source

Mapping Electronic Decoherence Pathways in Molecules [PDF]

open access: yesPNAS. 120, e2309987120 (2023), 2023
Establishing the fundamental chemical principles that govern molecular electronic quantum decoherence has remained an outstanding challenge. Fundamental questions such as how solvent and intramolecular vibrations or chemical functionalization contribute to the decoherence remain unanswered and are beyond the reach of state-of-the-art theoretical and ...
arxiv   +1 more source

Adenine and Thymine Effect on Quartz Dissolution at Different Artificial Seawaters

open access: yesOrbital: The Electronic Journal of Chemistry, 2018
According to Bernal (1951) minerals may have played important roles in the origin of life such as: protect biomolecules against degradation by UV radiation or hydrolysis, pre-concentrate biomolecules from prebiotic seas and formation of polymers.
Dimas Augusto Morozin Zaia   +2 more
doaj   +3 more sources

Assessment of the Potential Energy Hypersurfaces in Thymine within Multiconfigurational Theory: CASSCF vs. CASPT2

open access: yesMolecules, 2016
The present study provides new insights into the topography of the potential energy hypersurfaces (PEHs) of the thymine nucleobase in order to rationalize its main ultrafast photochemical decay paths by employing two methodologies based on the complete ...
Javier Segarra-Martí   +3 more
doaj   +1 more source

Synthesis of new dipeptides based on uracil and thymine and investigation of the molecular docking of these compounds as inhibitors of quorum sensing system in Pseudomonas aeruginosa [PDF]

open access: yesشیمی کاربردی روز, 2019
In this study, due to the importance of dipeptide compounds in diagnosis of disease or as drug compounds, new dipeptide compounds were synthesized using pyrimidine derivatives of thymine and uracil.
Azam Heidari   +3 more
doaj   +1 more source

Sequence-selective recognition of DNA by strand displacement with a thymine-substituted polyamide.

open access: yesScience, 1991
A polyamide nucleic acid (PNA) was designed by detaching the deoxyribose phosphate backbone of DNA in a computer model and replacing it with an achiral polyamide backbone.
P. Nielsen   +3 more
semanticscholar   +1 more source

A Simple and Highly Sensitive Thymine Sensor for Mercury Ion Detection Based on Surface Enhanced Raman Spectroscopy and the Mechanism Study

open access: yesNanomaterials, 2017
Mercury ion (Hg2+) is recognized as one of the most toxic metal ions for the environment and for human health. Techniques utilized in the detection of Hg2+ are an important factor.
Hao Yang   +8 more
doaj   +1 more source

Discovery of Cisplatin Binding to Thymine and Cytosine on a Single-Stranded Oligodeoxynucleotide by High Resolution FT-ICR Mass Spectrometry

open access: yesMolecules, 2019
The clinically widely-used anticancer drug, cisplatin, binds strongly to DNA as a DNA-damaging agent. Herein, we investigated the interaction of cisplatin with a 15-mer single-stranded C,T-rich oligodeoxynucleotide, 5′-CCTT4CTT7G8C9T10TCTCC-3′
Wenjuan Zeng   +9 more
doaj   +1 more source

Surface-enhanced Raman spectroscopy of DNA bases [PDF]

open access: yes, 1986
A Raman microprobe has been used to measure the surface-enhanced Raman spectra of adenine, guanine, cytosine and thymine. Comparison of the SERS spectrum with solution spectra shows that some line positions are not influenced by the adsorption process ...
Greve, J.   +3 more
core   +3 more sources

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