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Nanogel imprinting improving affinity and selectivity of domain-limited ssDNA aptamer to Pb: Interaction mechanisms revealed by molecular dynamics simulation.
Int J Biol Macromol
December 2024
School of Health Science and Engineering, Shanghai Engineering Research Center of Food Rapid Detection, University of Shanghai for Science and Technology, Shanghai 200093, China. Electronic address:
Aptamer conformations are susceptible to environmental conditions, which makes it difficult to achieve stable targets detection in complex environments with aptasensors. Imprinting strategy was proposed to immobilize the specific conformation of aptamers, aiming to enhance their recognition anti-interference. However, it is mechanistically unclear how the imprinted polymers affect aptamers' recognition, which limits application of the strategy.
View Article and Find Full Text PDFToward Automated DNA Nanoprinting: Advancing the Synthesis of Covalently Branched DNA.
Small Methods
December 2024
Department of Chemistry, McGill University, 801 Sherbrooke St. West, Montreal, QC, H3A 0B8, Canada.
Covalently branched DNA molecules are hybrid structures where a small molecule core is covalently linked to different DNA strands. They merge the programmability of DNA nanotechnology with synthetic molecules' functionality, offering enhanced stability over their non-covalent counterparts like double-crossover tiles. They enable the efficient assembly of stable DNA nanostructures with new geometries and functionalities.
View Article and Find Full Text PDFNi(II)-Dithiocarbamate and -diphosphine coordination complexes as pre-catalysts for electrochemical OER activity.
Dalton Trans
December 2024
Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi-221005, India.
Electrochemical water oxidation holds immense potential for sustainable energy generation, splitting water into clean-burning hydrogen and life-giving oxygen. However, a key roadblock lies in the sluggish nature of the oxygen evolution reaction (OER). Finding stable, cost-effective, and environmentally friendly catalysts with high OER efficiency is crucial to unlock this technology's full potential.
View Article and Find Full Text PDFEfficiency Enhancement in Peptide Hydrogelators: The Crucial Role of Side Chain Hydrogen Bonding Over Aromatic π-π Interactions.
Langmuir
November 2024
Organic and Bioorganic Chemistry Laboratory, Council of Scientific and Industrial Research (CSIR) - Central Leather Research Institute (CLRI), Adyar, Chennai 600020, India.
Article Synopsis
- Short peptide assemblies that form supramolecular hydrogels are stabilized by noncovalent interactions among amino acid side chains, with a focus on the role of hydrogen bonds from side chains over aromatic π-π interactions.
- Research on Fluorenylmethoxycarbonyl (Fmoc)-functionalized peptides showed that certain substitutions significantly impacted minimum gelation concentrations (MGC), identifying Syn-N and Syn-Q as super hydrogelators.
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Analysis of interactions between pharmaceuticals and humic acid: Characterization using entrapment and high-performance affinity microcolumns.
J Chromatogr A
November 2024
Department of Chemistry, University of Nebraska-Lincoln, Lincoln, NE, USA. Electronic address:
The presence of pharmaceuticals as microcontaminants in the environment has become of particular concern given the growing increase in water reuse and recycling to promote global sustainability of this resource. Pharmaceuticals can often undergo reversible interactions with soluble dissolved organic material such as humic acid, which may be an important factor in determining the bioavailability and effects of these compounds in the environment. In this study, high-performance affinity microcolumns containing non-covalently entrapped and immobilized humic acid are used to examine the binding strength and interactions of this agent for tetracycline, carbamazepine, ciprofloxacin, and norfloxacin, all common pharmaceutical microcontaminants known to bind humic acid.
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