Results 71 to 80 of about 47,089 (385)

A Peptide Nucleic Acid‐Functionalized Heterojunction Thin Film Transistor as a Scalable and Reusable Platform for Label‐Free Detection of MicroRNA

open access: yesAdvanced Functional Materials, EarlyView.
A miniaturized, label‐free, and enzyme‐free biosensor (miR‐TFT) enables direct electrical detection of microRNA (miRNA) with single‐nucleotide specificity and a detection limit of 0.6 fM. Built on a tri‐channel In2O3/ZnO heterojunction and functionalized with bespoke peptide nucleic acid (PNA) probes, the device is robust, reusable, and compatible with
Wejdan S. Al Ghamdi   +5 more
wiley   +1 more source

Novel chemical entities inhibiting Mycobacterium tuberculosis growth identified by phenotypic high-throughput screening

open access: yesScientific Reports, 2022
We performed a high-throughput phenotypic whole cell screen of Mycobacterium tuberculosis against a diverse chemical library of approximately 100,000 compounds from the AbbVie corporate collection and identified 24 chemotypes with anti-tubercular ...
Anuradha Kumar   +17 more
doaj   +1 more source

Selectivity Control in the Palladium-catalyzed Cross-coupling of Alkyl Nucleophiles [PDF]

open access: yes, 2016
Site-selectivity remains a major challenge in metal-catalyzed C–H bond functionalization. Most existing strategies rely on the introduction of a directing group or on the intrinsic reactivity of the substrate.
Baudoin, Olivier
core   +2 more sources

Electrosynthesis of Bioactive Chemicals, From Ions to Pharmaceuticals

open access: yesAdvanced Functional Materials, EarlyView.
This review discusses recent advances in electrosynthesis for biomedical and pharmaceutical applications. It covers key electrochemical materials enabling precise delivery of ions and small molecules for cellular modulation and disease treatment, alongside catalytic systems for pharmaceutical synthesis.
Gwangbin Lee   +4 more
wiley   +1 more source

PEG-embedded KBr3: A recyclable catalyst for multicomponent coupling reaction for the efficient synthesis of functionalized piperidines

open access: yesBeilstein Journal of Organic Chemistry, 2011
PEG-embedded potassium tribromide ([K+PEG]Br3−) was found to be an efficient and recyclable catalyst for the synthesis of functionalized piperidines in high yields in a one step, three component coupling between aldehyde, amine and β-keto ester.
Sanny Verma, Suman L. Jain, Bir Sain
doaj   +1 more source

Facile and Green Synthesis of Saturated Cyclic Amines

open access: yesMolecules, 2017
Single-nitrogen containing saturated cyclic amines are an important part of both natural and synthetic bioactive compounds. A number of methodologies have been developed for the synthesis of aziridines, azetidines, pyrrolidines, piperidines, azepanes and
Arruje Hameed   +7 more
doaj   +1 more source

Workers and alate queens of Solenopsis geminata share qualitatively similar but quantitatively different venom alkaloid chemistry [PDF]

open access: yes, 2015
Solenopsis geminata group (Hymenoptera: Formicidae) encompasses ant species commonly called fire ants because of their painful sting. The many physiological effects of the venom are caused by 2-methyl-6-alkyl and/or alkenylpiperidine alkaloids.
Li Chen   +5 more
core   +2 more sources

Advances in Stimuli‐Responsive Organic Materials and Polymers toward Intelligent CO2 Capture

open access: yesAdvanced Functional Materials, EarlyView.
Schematic illustration of the relationship between different stimuli and stimuli‐responsive organic materials and polymers for carbon dioxide (CO2) capture. Main stimuli include redox, pH, magnetism, temperature, light, and pressure. Furthermore, multi‐responsive materials, due to their high adaptability and scalability in complex environments, are ...
Jian Zhou   +2 more
wiley   +1 more source

Nickel-catalyzed transamidation of aliphatic amide derivatives. [PDF]

open access: yes, 2017
Transamidation, or the conversion of one amide to another, is a long-standing challenge in organic synthesis. Although notable progress has been made in the transamidation of primary amides, the transamidation of secondary amides has remained ...
Baker, Emma L   +2 more
core   +1 more source

Using High‐Throughput Screening to Identify Crosslinking Peptides That Control Cell‐Mediated Matrix Degradation

open access: yesAdvanced Healthcare Materials, EarlyView.
Protease‐degradable hydrogels mimic dynamic cell‐matrix interactions, but controlling hydrogel degradation is a challenge. We screen libraries of peptides to identify sequences that are primarily degraded by membrane‐localized proteases. Crosslinking hydrogels with these peptides enables cell to spread and migrate while reducing matrix degradation ...
Yingjie Wu   +3 more
wiley   +1 more source

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