Results 31 to 40 of about 57,834 (304)

Recent Update on Applications of Quaternary Ammonium Silane as an Antibacterial Biomaterial: A Novel Drug Delivery Approach in Dentistry

open access: yesFrontiers in Microbiology, 2022
Quaternary ammonium silane [(QAS), codename – k21] is a novel biomaterial developed by sol-gel process having broad spectrum antimicrobial activities with low cytotoxicity.
Ranjeet Ajit Bapat   +7 more
doaj   +1 more source

Reactive trityl derivatives: stabilised carbocation mass-tags for life sciences applications [PDF]

open access: yes, 2008
The rational design of novel triarylmethyl (trityl)-based mass tags (MT) for mass-spectrometric (MS) applications is described. We propose a "pKR+ rule" to correlate the stability of trityl carbocations with their MS performance: trityls with higher pKR+
Astakhova, Irina Kira   +14 more
core   +2 more sources

Effect of aminoacids on the fungicidal activity of quaternary ammonium salts

open access: yesActa Mycologica, 2013
Amphipatic compounds exhibit an antimicrobial action both on bacteria and fungi. It is caused by a penetrative property of hydrophobic carbon chain of the compuound into a plasma membrane as well as by additional interaction of membrane elements and a ...
Jerzy Piątkowski, Michał Świątek
doaj   +1 more source

Synthesis and Antifungal Activity of Novel Tetrahydrogeranyl Quaternary Ammonium Salts

open access: yesNatural Product Communications, 2022
Due to the excessive use of antifungal agents, drug resistance and ecological problems are increasing. Some antifungal agents are difficult to degrade and have high toxicity and several side effects.
Yun Peng   +9 more
doaj   +1 more source

Strategies for studying permeation at voltage-gated ion channels [PDF]

open access: yes, 1991
Voltage-dependent ion channels are presently thought to consist of several distinct functional regions: (a) activation gates, (b) inactivation gates, and permeation pathways.
Lester, Henry A.
core   +1 more source

Quaternary ammonium compounds – new occupational hazards

open access: yesMedycyna Pracy, 2014
Quaternary ammonium compounds (QACs, quats) belong to organic ionic chemical agents which display unique properties of both surfactants and disinfectants. Their wide distribution in the work environment and also in private households brings about new occupational hazards. This paper reviews reports about the health effects of QACs.
Agnieszka Lipińska-Ojrzanowska   +1 more
openaire   +3 more sources

Molecular Dynamic Simulation Search for Possible Amphiphilic Drug Discovery for Covid-19

open access: yesMolecules, 2021
To determine whether quaternary ammonium (k21) binds to Severe Acute Respiratory Syndrome–Coronavirus 2 (SARS-CoV-2) spike protein via computational molecular docking simulations, the crystal structure of the SARS-CoV-2 spike receptor-binding domain ...
Umer Daood   +4 more
doaj   +1 more source

The supramolecular attitude of metal-salophen and metal-salen complexes [PDF]

open access: yes, 2018
In this review we cover some aspects of metal-salophen and metal-salen complex chemistry related to their supramolecular attitude. We examined under the lens of the non-covalent interactions their potential to behave as building blocks for auto-assembled
Dalla Cort, Antonella, Leoni, Luca
core   +2 more sources

Synthesis, Structure, Surface and Antimicrobial Properties of New Oligomeric Quaternary Ammonium Salts with Aromatic Spacers

open access: yesMolecules, 2017
New dimeric, trimeric and tetrameric quaternary ammonium salts were accomplished by reaction of tertiary alkyldimethyl amines with appropriate bromomethylbenzene derivatives.
Bogumił Brycki   +5 more
doaj   +1 more source

Two Cases of Consecutive Toxic Anterior Segment Syndrome after Uneventful Trabeculectomy Surgeries in a Tertiary Center

open access: yesCase Reports in Ophthalmology, 2022
Toxic anterior segment syndrome (TASS) is a severe, acute, sterile intraocular inflammation that occurs the same day or in the early stages after intraocular surgery. It has been most commonly reported after phacoemulsification.
Tatiana M. Gil-Martínez   +2 more
doaj   +1 more source

Home - About - Disclaimer - Privacy