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Showing 13 to 24 of 140 entries
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Identification and Quantitation of Taste-Active Compounds in Dried Scallops by Combined Application of the Sensomics and a Quantitative NMR Approach.

Journal of agricultural and food chemistry

Dirndorfer S, Hammerl R, Kitajima S, Kitada R, Frank O, Dunkel A, Hofmann T.
PMID: 34965128
J Agric Food Chem. 2021 Dec 29; doi: 10.1021/acs.jafc.1c05257. Epub 2021 Dec 29.

Application of the sensomics concept on dried scallops, a Japanese specialty produced from the adductor muscle of scallops, revealed after activity-guided fractionation with subsequent (comparative) taste dilution analyses besides nucleotides, amino acids, organic acids, and inorganic ions, the presence...

Methodological evaluation of human research on asthmagenicity and occupational cleaning: a case study of quaternary ammonium compounds ("quats").

Allergy, asthma, and clinical immunology : official journal of the Canadian Society of Allergy and Clinical Immunology

LaKind JS, Goodman M.
PMID: 31832071
Allergy Asthma Clin Immunol. 2019 Nov 21;15:69. doi: 10.1186/s13223-019-0384-8. eCollection 2019.

In this paper, we review methodological approaches used in studies that evaluated the association between occupational exposure to quaternary ammonium compounds (quats) and occupational asthma. This association is of interest because quats are a common active ingredient of disinfectants...

Systematic assessment of quaternary ammonium compounds for the potential to elicit developmental and reproductive effects.

Birth defects research

DeSesso JM, Harris SB, Scialli AR, Williams AL.
PMID: 34687283
Birth Defects Res. 2021 Dec 01;113(20):1484-1511. doi: 10.1002/bdr2.1963. Epub 2021 Oct 23.

INTRODUCTION: Quaternary ammonium compounds (QUATs) are commonly found in cleaning products, disinfectants, hand sanitizers, and personal care products. They have been used for >50 years and are considered safe when used according to directions. Recent papers report reduced fertility...

Molecular characterization of methicillin-resistant Staphylococcus aureus in nosocomial infections in a tertiary-care facility: emergence of new clonal complexes in Saudi Arabia.

New microbes and new infections

Senok A, Ehricht R, Monecke S, Al-Saedan R, Somily A.
PMID: 27621823
New Microbes New Infect. 2016 Jul 29;14:13-8. doi: 10.1016/j.nmni.2016.07.009. eCollection 2016 Nov.

Changes in the molecular epidemiology of methicillin-resistant Staphylococcus aureus (MRSA) continue to be reported. This study was carried out to characterize MRSA isolates in Saudi Arabia. MRSA isolates causing nosocomial infections (n = 117) obtained from 2009-2015 at a...

Characterization and comparative analysis of antibiotic resistance plasmids isolated from a wastewater treatment plant.

Frontiers in microbiology

Rahube TO, Viana LS, Koraimann G, Yost CK.
PMID: 25389419
Front Microbiol. 2014 Oct 28;5:558. doi: 10.3389/fmicb.2014.00558. eCollection 2014.

A wastewater treatment plant (WWTP) is an environment high in nutrient concentration with diverse bacterial populations and can provide an ideal environment for the proliferation of mobile elements such as plasmids. WWTPs have also been identified as reservoirs for...

Outbreak of Extended-Spectrum Beta-Lactamase Producing Enterobacter cloacae with High MICs of Quaternary Ammonium Compounds in a Hematology Ward Associated with Contaminated Sinks.

Frontiers in microbiology

Chapuis A, Amoureux L, Bador J, Gavalas A, Siebor E, Chrétien ML, Caillot D, Janin M, de Curraize C, Neuwirth C.
PMID: 27462306
Front Microbiol. 2016 Jul 12;7:1070. doi: 10.3389/fmicb.2016.01070. eCollection 2016.

OBJECTIVE: To investigate an outbreak of extended-spectrum beta-lactamase (ESBL) producing Enterobacter cloacae that occurred in the Hematology ward (24-bed unit) of the François Mitterrand University Hospital (Dijon, France) between January 2011 and December 2013. The outbreak involved 43 patients...

Magnetic Iron Oxide Nanoparticles Immobilized with Sugar-Containing Poly(ionic liquid) Brushes for Efficient Trapping and Killing of Bacteria.

ACS applied bio materials

Hong M, Miao Z, Xu X, Zhang Q.
PMID: 35025237
ACS Appl Bio Mater. 2020 Jun 15;3(6):3664-3672. doi: 10.1021/acsabm.0c00298. Epub 2020 May 18.

Poly(ionic liquid)s (PILs) such as polymeric quaternary ammonium compounds (PQACs) are among the most widely used disinfectant agents due to their broad-spectrum antimicrobial activity. However, the high cytotoxicity and difficult reclamation of PQACs remain as challenges for practical water...

Evaluating solid phase (micro-) extraction tools to analyze freely ionizable and permanently charged cationic surfactants.

Analytica chimica acta

Timmer N, Scherpenisse P, Hermens JLM, Droge STJ.
PMID: 29306411
Anal Chim Acta. 2018 Mar 09;1002:26-38. doi: 10.1016/j.aca.2017.11.051. Epub 2017 Nov 30.

Working with and analysis of cationic surfactants can be problematic since aqueous concentrations are difficult to control, both when taking environmental aqueous samples as well as performing laboratory work with spiked concentrations. For a selection of 32 amine based...

Bactericidal and Hemocompatible Coating via the Mixed-Charged Copolymer.

ACS applied materials & interfaces

Fan XL, Hu M, Qin ZH, Wang J, Chen XC, Lei WX, Ye WY, Jin Q, Ren KF, Ji J.
PMID: 29508992
ACS Appl Mater Interfaces. 2018 Mar 28;10(12):10428-10436. doi: 10.1021/acsami.7b18889. Epub 2018 Mar 15.

Cationic antibacterial coating based on quaternary ammonium compounds, with an efficient and broad spectrum bactericidal property, has been widely used in various fields. However, the high density of positive charges tends to induce weak hemocompatibility, which hinders the application...

Myristyltrimethylammonium Bromide (MYTAB) as a Cationic Surface Agent to Inhibit .

Journal of functional biomaterials

Mena Silva PA, Garcia IM, Nunes J, Visioli F, Castelo Branco Leitune V, Melo MA, Collares FM.
PMID: 32075267
J Funct Biomater. 2020 Feb 15;11(1). doi: 10.3390/jfb11010009.

This in vitro study evaluated the effect of myristyltrimethylammonium bromide (MYTAB) on the physical, chemical, and biological properties of an experimental dental resin. The resin was formulated with dental dimetacrylate monomers and a photoinitiator/co-initiator system. MYTAB was added at...

Biocides and Novel Antimicrobial Agents for the Mitigation of Coronaviruses.

Frontiers in microbiology

Dev Kumar G, Mishra A, Dunn L, Townsend A, Oguadinma IC, Bright KR, Gerba CP.
PMID: 32655532
Front Microbiol. 2020 Jun 23;11:1351. doi: 10.3389/fmicb.2020.01351. eCollection 2020.

In December, 2019, a highly infectious and rapidly spreading new pneumonia of unknown cause was reported to the Chinese WHO Country Office. A cluster of these cases had appeared in Wuhan, a city in the Hubei Province of China....

More QACs, more questions: Recent advances in structure activity relationships and hurdles in understanding resistance mechanisms.

Tetrahedron letters

Morrison KR, Allen RA, Minbiole KPC, Wuest WM.
PMID: 32296251
Tetrahedron Lett. 2019 Sep 12;60(37). doi: 10.1016/j.tetlet.2019.07.026. Epub 2019 Jul 26.

Quaternary ammonium compounds (QACs) are a class of antimicrobials that have been around for over a century; nevertheless, they have found continued renewal in the structures to which they can be appended. Ranging from antimicrobial polymers to adding novel...

Showing 13 to 24 of 140 entries