isopropanol/dental caries

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Spectroscopic investigations on the interactions between isopropanol and trypsin at molecular level.

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The toxicity of hydroxyl group of isopropanol to trypsin in aqueous solution was investigated by techniques including UV-visible absorption spectroscopy, fluorescence spectroscopy, circular dichroism (CD) spectroscopy, enzyme activity assay and molecular docking technology. The results of UV-visible

Mortality study of ethanol and isopropanol production workers at two facilities.

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The mortality experience of alcohol process workers (N = 1031) from two chemical plants was followed from the early 1940s to 1983. Reported associations of the production of ethanol and isopropanol by the strong-acid process with upper respiratory tract cancers, heart disease, and lympho- and

Multiplexed continuous-wave diode-laser cavity ringdown measurements of multiple species.

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Rapid cavity ringdown measurements of multiple broadband absorbing species (methanol and isopropanol) in gas mixtures have been recorded with two multiplexed continuous-wave distributed-feedback diode lasers operating near 1.4 mum. A measurement sensitivity of 2.4 x 10(-9) cm(-1) for a 4.3-s

Effects of isopropanol on the development of inflammatory reactions in rats.

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The effects of isopropanol on the development of inflammation were studied in rats. Isopropanol inhibited both the histamine-induced increase in cutaneous vascular permeability and the carrageenan-induced plasma exudation into the pleural cavity. The lipopolysaccharide-induced leucocyte emigration

Mimicking anesthetic-receptor interactions in jets: the propofol-isopropanol cluster.

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The interaction of the general anesthetic propofol with an individual residue of threonine in the membrane receptors has been modeled in the gas phase by examining the adduct of propofol with the isopropanol side-chain. We determined the structural preferences of the cluster using a combination of

Negative axicon tip-based fiber optic interferometer cavity sensor for volatile gas sensing.

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In this research work we demonstrated negative axicon optical fiber tip filled with Polydimethylsiloxane (PDMS) as a sensor platform for volatile organic gases detection at room temperature. The response of the sensor was measured with various Volatile Organic Compounds (VOCs) such as Chloroform,

First Report of Pythium sulcatum Causing Cavity Spot in Processing Carrot Crops in the Columbia Basin of Washington State.

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In October 2012, symptoms of cavity spot (1) were observed on roots of two 50 ha, Red Core Chantenay processing carrot (Daucus carota L. subsp. sativus (Hoffm.)) crops in the Columbia Basin of central Washington. Symptoms consisted of sunken, elliptical lesions (3 to 15 mm long) on the root surface.

Manufacture of liposomes by isopropanol injection: characterization of the method.

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Unilamellar liposomes are conventionally prepared by rapid injection of an ethanolic solution of lipids into an aqueous medium. The aim of the present study was to control, more efficiently, vesicle diameter by using an alternative solvent. The results show that isopropanol injection is a good

Expansion of access tunnels and active-site cavities influence activity of haloalkane dehalogenases in organic cosolvents.

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The use of enzymes for biocatalysis can be significantly enhanced by using organic cosolvents in the reaction mixtures. Selection of the cosolvent type and concentration range for an enzymatic reaction is challenging and requires extensive empirical testing. An understanding of protein-solvent

Extremely large cavity assembled by self-interlocking of distorted biconcave porphyrins.

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X-Ray analyses of free base, zinc, and nickel complexes of 2,3;7,8;12,13;17,18-tetrakis(6,13-dihydro-6,13-pentaceno)-21H,23H-porphine revealed that the porphyrin chromophores adopted a heavily-saddled conformation by interlocking of the biconcave porphyrins in the crystals containing halobenzenes as

Antimicrobial Activity of a Colloidal AgNP Suspension Demonstrated In Vitro against Monoculture Biofilms: Toward a Novel Tooth Disinfectant for Treating Dental Caries.

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A novel silver nanoparticle (AgNP) formulation was developed as a targeted application for the disinfection of carious dentine. Silver nitrate (AgNO3) was chemically reduced using sodium borohydrate (NaBH4) in the presence of sodium dodecyl sulfate (SDS) to form micelle aggregate structures

Tamm plasmons in metal/nanoporous GaN distributed Bragg reflector cavities for active and passive optoelectronics

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We theoretically and experimentally investigate Tamm plasmon (TP) modes in a metal/semiconductor distributed Bragg reflector (DBR) interface. A thin Ag (silver) layer with a thickness (55 nm from simulation) that is optimized to guarantee a low reflectivity at the resonance was deposited on

Highly sensitive temperature sensor based on an ultra-compact Mach-Zehnder interferometer with side-opened channels.

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We demonstrated an ultra-compact and highly sensitive temperature sensor by using an in-fiber Mach-Zehnder interferometer (MZI) with side-opened channels. The MZI was constructed by off-center splicing a thin piece of microstructured optical fiber (MOF) between two single-mode fibers. Then, two

A paradigm shift in the construction of heterobimetallic complexes: synthesis of group 2 & 4 metal-calix[6]arene complexes.

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Deprotonation of calix[6]arenes with barium in methanol followed by the addition of [Ti(OPr(i))(4)] or [Zr(OBu(n))(4)] is effective in the formation of novel dimeric 2:1 barium-titanium(IV)/zirconium(IV) calix[6]arene complexes. In these complexes a central Ti(IV)/Zr(IV) coordinated in the

Enhancement of ibuprofen dissolution via wet granulation with beta-cyclodextrin.

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The purpose was to investigate the effect of wet granulation with beta-cyclodextrin (betaCD) on the enhancement of ibuprofen (IBU) dissolution. The effect of the granulation variables on the physical properties as well as the dissolution of tablets prepared from these granules was also examined.

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