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Polymer coated liposomes for use in the oral cavity - a study of the in vitro toxicity, effect on cell permeability and interaction with mucin.

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In this study we investigated the in vitro toxicity, impact on cell permeability and mucoadhesive potential of polymer-coated liposomes intended for use in the oral cavity. A TR146 cell line was used as a model. The overall aim was to end up with a selection of safe polymer coated liposomes with

2-hydroxylethyl methacrylate (HEMA), a tooth restoration component, exerts its genotoxic effects in human gingival fibroblasts trough methacrylic acid, an immediate product of its degradation.

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HEMA (2-hydroxyethyl methacrylate), a methacrylate commonly used in dentistry, was reported to induce genotoxic effects, but their mechanism is not fully understood. HEMA may be degraded by the oral cavity esterases or through mechanical stress following the chewing process. Methacrylic acid (MAA)

A novel dentin bonding system containing poly(methacrylic acid) grafted nanoclay: synthesis, characterization and properties.

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OBJECTIVE Developing a novel dentin bonding system containing poly(methacrylic acid)-grafted-nanoclay (PMAA-g-nanoclay) as reinforcing filler, with high stability of nanoparticle dispersion and improved bond strength and mechanical properties were the main objectives of this

Molecularly Imprinted Solid Phase Extraction using Bismethacryloyl-β-cyclodextrin and Methacrylic Acid as Double Functional Monomers for Selective Analysis of Glycyrrhizic Acid in Aqueous Media.

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In this work, a new molecularly imprinted solid phase extraction protocol was developed for the selective extraction and purification of glycyrrhizic acid from liquorice roots in aqueous media. The molecularly imprinted polymers (MIPs) for glycyrrhizic acid were prepared by using

Biochemical Stability and Interactions of Dental Resin Composites and Adhesives with Host and Bacteria in the Oral Cavity: A Review.

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The use of resin composites and adhesives in dental restorations is ubiquitous. However, the longevity of resin composites is less than that of comparable restorative materials, mainly because of higher fracture rates and greater prevalence of secondary caries. Dental resin composites and adhesives

Controlling drug release from imprinted hydrogels by modifying the characteristics of the imprinted cavities.

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The aim of this study was to analyse the influence of the template/functional monomer proportion on the achievement of molecularly imprinted hydrogels with cavities with a high enough affinity for the drug to sustain drug release. Imprinted hydrogels were prepared from N,N-dimethylacrylamide and

Concanavalin A application to the olfactory epithelium reveals different sensory neuron populations for the odour pair D- and L-carvone.

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Carvone enantiomers (D and L optical isomers) have been shown to be discriminable by humans even though the odor qualities are quite similar. Our experiment is based on a finding (J. Steroid Biochem. Molec. Biol. 1991;39(4B):621) that Concanavalin A (ConA) applied to a frog olfactory epithelium

Atrazine transforming polymer prepared by molecular imprinting with post-imprinting process.

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Molecularly imprinted polymers bearing atrazine transforming activity were prepared by using newly designed templates that are atrazine analogues attached with an allyl or a styryl group via a disulfide bond at the 6-position, methacrylic acid as a functional monomer and styrene/divinylbenzene as

An epitope-imprinted piezoelectric diagnostic tool for Neisseria meningitidis detection.

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Neisseria meningitidis, a human-specific bacterial pathogen causes bacterial meningitis by invading the meninges (outer lining) of central nervous system. It is the polysaccharide present on the bacterial capsid that distinguishes various serogroups of N. meningitidis and can be utilized as antigens

Mechanism of molecular recognition on molecular imprinted monolith by capillary electrochromatography.

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The recognition mechanism of molecularly imprinted polymer (MIP) in capillary electrochromatography (CEC) is complicated since it possesses a hybrid process, which comprises the features of chromatographic retention, electrophoretic migration and molecular imprinting. For an understanding of the

Molecularly imprinted polymer doped with Hectorite for selective recognition of sinomenine hydrochloride.

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In this work, a new and facile method was introduced to prepare molecularly imprinted polymers (MIPs) based on nano clay hectorite (Hec) for sinomenine hydrochloride (SM) analysis. Hec was firstly dissolved in distilled water in order to swell adequately, followed by a common precipitation

Molecularly imprinted polymer as efficient sorbent of solid-phase extraction for determination of gonyautoxin 1,4 in seawater followed by high-performance liquid chromatography-fluorescence detection.

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A kind of new molecularly imprinted polymer (MIP) was synthesized by bulk polymerization using guanosine as dummy template molecule, α-methacrylic acid as functional monomer and ethylene glycol dimethyl acrylic ester as crosslinker. Fourier transform infrared spectroscopy (FT-IR) and scanning

Novel Imprinted Polymer for the Preconcentration of Cadmium with Determination by Inductively Coupled Plasma Mass Spectrometry.

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A novel Cd(II)-imprinted polymer was prepared with chemical immobilization approach by using N-methacryloyl-L-histidine as a vinylated chelating agent for on-line solid phase extraction of Cd(II) for determination by inductively coupled plasma mass spectrometry. Cd(II)-monomer complex was

NTP Toxicology and Carcinogenesis Studies of Methyl Methacrylate (CAS No. 80-62-6) in F344/N Rats and B6C3F1 Mice (Inhalation Studies).

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Toxicology and carcinogenesis studies of methyl methacrylate, a liquid chemical intermediate used in the plastics industry in the manufacture of plexiglass and other acrylic products, were conducted by exposing groups of F344/N rats and B6C3F1 mice by inhalation for 14 weeks and 2 years. In the

Floating liquid crystalline molecularly imprinted polymer coated carbon nanotubes for levofloxacin delivery.

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Liquid crystalline molecularly imprinted polymers (LC-MIPs) were low cross-linking MIPs (5-20 mol%) by introducing a LC monomer into the MIP polymerization system to keep the shape of the imprinted cavities due to additional interactions between the mesogenic groups. The multiwalled carbon nanotubes

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