Results 51 to 60 of about 11,439 (158)

pH-Sensitive Chitosan–Heparin Nanoparticles for Effective Delivery of Genetic Drugs into Epithelial Cells [PDF]

open access: yes, 2019
Chitosan has been extensively studied as a genetic drug delivery platform. However, its efficiency is limited by the strength of DNA and RNA binding.
Korzhikov-Vlakh, Viktor   +7 more
core   +1 more source

Nanozymes Integrated Biochips Toward Smart Detection System

open access: yesAdvanced Science, EarlyView.
This review systematically outlines the integration of nanozymes, biochips, and artificial intelligence (AI) for intelligent biosensing. It details how their convergence enhances signal amplification, enables portable detection, and improves data interpretation.
Dongyu Chen   +10 more
wiley   +1 more source

The promising potential of polynucleotide injections for knee osteoarthritis: A systematic review of literature and meta‐analysis of randomized control trials

open access: yesJournal of Experimental Orthopaedics
Purpose The present study aims to synthesize and evaluate the evidence on the effectiveness of intra‐articular polynucleotides (PNs) for knee osteoarthritis (OA). Methods In March 2024, we searched MEDLINE, Emcare, Web of Science and Cochrane Library for
Joseph Elphingstone   +4 more
doaj   +1 more source

Origin of the Genetic Code Is Found at the Transition between a Thioester World of Peptides and the Phosphoester World of Polynucleotides

open access: yesLife, 2019
The early metabolism arising in a Thioester world gave rise to amino acids and their simple peptides. The catalytic activity of these early simple peptides became instrumental in the transition from Thioester World to a Phosphate World.
Hyman Hartman, Temple F. Smith
doaj   +1 more source

Sequence specific binding of beta carboline alkaloid harmalol with deoxyribonucleotides: binding heterogeneity, conformational, thermodynamic and cytotoxic aspects. [PDF]

open access: yesPLoS ONE, 2014
Base dependent binding of the cytotoxic alkaloid harmalol to four synthetic polynucleotides, poly(dA).poly(dT), poly(dA-dT).poly(dA-dT), poly(dG).poly(dC) and poly(dG-dC).poly(dG-dC) was examined by various photophysical and calorimetric studies, and ...
Sarita Sarkar   +2 more
doaj   +1 more source

Template-directed biopolymerization: tape-copying Turing machines

open access: yes, 2012
DNA, RNA and proteins are among the most important macromolecules in a living cell. These molecules are polymerized by molecular machines. These natural nano-machines polymerize such macromolecules, adding one monomer at a time, using another linear ...
Chowdhury, Debashish, Sharma, Ajeet K.
core   +1 more source

Extreme accumulation of nucleotides in simulated hydrothermal pore systems [PDF]

open access: yes, 2007
We simulate molecular transport in elongated hydrothermal pore systems influenced by a thermal gradient. We find extreme accumulation of molecules in a wide variety of plugged pores. The mechanism is able to provide highly concentrated single nucleotides,
Baaske, Philipp   +5 more
core   +2 more sources

Targeting DAP5 Disrupts Alternate Mode of Translational Initiation in Tregs and Potentiates Antitumor Immunity

open access: yesAdvanced Science, EarlyView.
Regulatory T cells (Tregs) suppress antitumor immunity. This study identifies that the translation scaffold DAP5/eIF4G2 is upregulated in tumor‐infiltrating Tregs (ti‐Tregs). DAP5 mediates an alternate translation mode to sustain CD25 and MCL‐1 expression, which is critical for ti‐Treg stability and survival in the tumor microenvironment.
Xiaojiang Lai   +12 more
wiley   +1 more source

Sequences for differential diagnostic of Ehrlichia ruminantium and use thereof [PDF]

open access: yes, 2006
The invention provides genes that are unique either to Ehrlichia ruminantium strain Gardel or to Ehrlichia ruminantium strain Welgevonden, or allelic couples which are present in both strains but whose sequences differ between the two strains, as genetic
Demaille, Jacques   +3 more
core  

Mitosene-DNA adducts. Characterization of two major DNA monoadducts formed by 1,10-bis(acetoxy)-7-methoxymitosene upon reductive activation [PDF]

open access: yes, 1997
Reductive activation of racemic 1,10-bis(acetoxy)-7-methoxymitosene WV15 in the presence of DNA, followed by enzymatic digestion and HPLC analysis, revealed the formation of various DNA adducts.
Duynhoven, John P.M. van   +8 more
core   +2 more sources

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