Results 191 to 200 of about 97,111 (245)
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Effects of HEMA on water evaporation from water–HEMA mixtures
Dental Materials, 1998The aims of this research were: (1) to determine the relative rates of evaporation of water and HEMA, and (2) to determine the effects of increasing concentrations of HEMA on the rate of evaporation of water from water and HEMA mixtures.Ten microliters of each solution (100% H2O, 75% H2O-25% HEMA, 50% H2O-50% HEMA, 25% HEMA, 100% HEMA) were placed on ...
E L, Pashley +4 more
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HEMA reactivity with demineralized dentin
Journal of Dentistry, 20102-Hydroxyethylmethacrylate (HEMA) was compared to its epoxy analogue, glycidoxypropylmethacrylate (GMA), for reactivity with 2,6-diaminohexanoic acid (Lysine), an amino acid present in collagen possessing a reactive amino side chain. The aim was to verify whether HEMA could chemically react with collagen fibers.Capillary electrophoresis was used to ...
Patrick, Sharrock, Geneviève, Grégoire
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Journal of Biomaterials Science, Polymer Edition, 2019
In order to obtain target/redox shell cross-linked micelles (TCM), copolymers poly(ε-caprolactone)-poly(2-hydroxyethyl methacrylate/methacrylate-alpha lipoic acid) and poly(ε-caprolactone)-poly(2-hydroxyethyl methacrylate/methacrylate-folate, PCL-P(HEMA/HEMA-LA) and PCL-P(HEMA/HEMA-FA) were designed and synthesized.
Fan, Chen +5 more
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In order to obtain target/redox shell cross-linked micelles (TCM), copolymers poly(ε-caprolactone)-poly(2-hydroxyethyl methacrylate/methacrylate-alpha lipoic acid) and poly(ε-caprolactone)-poly(2-hydroxyethyl methacrylate/methacrylate-folate, PCL-P(HEMA/HEMA-LA) and PCL-P(HEMA/HEMA-FA) were designed and synthesized.
Fan, Chen +5 more
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Journal of Applied Polymer Science, 1992
AbstractThe copolymers of poly[HEMA‐co‐(PVA‐AA)] and poly[HEMA‐co‐(PVA‐MA)] were synthesized and characterized. The presence of PVA‐AA in the copolymer increased the mechanical strength but decreased the water content of the material. The presence of PVA‐MA, on the other hand, caused a decrease of mechanical strength and an increase of water content ...
F. J. Liou, G. C. C. Niu, Y. J. Wang
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AbstractThe copolymers of poly[HEMA‐co‐(PVA‐AA)] and poly[HEMA‐co‐(PVA‐MA)] were synthesized and characterized. The presence of PVA‐AA in the copolymer increased the mechanical strength but decreased the water content of the material. The presence of PVA‐MA, on the other hand, caused a decrease of mechanical strength and an increase of water content ...
F. J. Liou, G. C. C. Niu, Y. J. Wang
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HEMA-free or HEMA-containing adhesive systems for non-carious cervical lesions.
Evidence-based dentistry, 2019Data sourcesMedline/PubMed, Web of Science, Open Grey, Scopus and Cochrane Library databases were searched with no restrictions on dates or language.Study selectionRandomised controlled clinical trials (RCTs) comparing the effectiveness of HEMA-free and HEMA-containing adhesive systems in NCCL restorations were included.Data extraction and synthesisTwo
Sia, Ching Feng, Levey, Colin
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From HEMA monomers to poly-HEMA systems simulations
2022There is plenty of experimental literature characterizing hydroxyethyl methacrylate (HEMA)-based physical and chemical hydrogels, due to their spread applications in numerous fields, especially in the biomedical one. Transport properties of poly-HEMA hydrogels as well as systems dynamics are of particular interest owing to delivery issues, whether in ...
Vettori Irene +5 more
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2020 The 4th International Conference on E-Business and Internet, 2020
New retailing is replacing the traditional retailing method and emerging everywhere in people's lives. Compared to traditional markets, where fresh products are sold on certain fixed time every morning, new retailing is bringing customers more than fresh and high-quality products.
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New retailing is replacing the traditional retailing method and emerging everywhere in people's lives. Compared to traditional markets, where fresh products are sold on certain fixed time every morning, new retailing is bringing customers more than fresh and high-quality products.
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Toxicokinetic of HEMA in guinea pigs
Journal of Dentistry, 2002Unconverted 2-hydroxyethylmethacrylate (HEMA) can be released from dental resin materials and can enter the body in humans. In the present study the uptake, distribution and excretion of 14C-HEMA applied via different routes were examined in vivo in guinea pigs.HEMA (0.02 mmol/kg bw labelled with a tracer dose 14C-HEMA 0.3 Bq/g bw) was administered by ...
F-X, Reichl +7 more
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Symptomatology of HEMA Contact Lens Wear
Optometry and Vision Science, 1989Identification of the determinants of patient symptoms is a requisite for successful patient management in contact lens practice. Symptoms reported by 104 patients wearing hydroxyethyl methacrylate (HEMA) contact lenses, who presented consecutively to a large contact lens clinic, were analyzed.
Brennan, Noel A., Efron, Nathan
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Journal of Biomaterials Science, Polymer Edition, 2000
Thermoplastic copolymers of 2-hydroxyethyl methacrylate (HEMA) and methyl methacrylate (MMA) (molar ratio: 75/25 HEMA-MMA) were synthesized using HEMA containing different amounts of ethylene glycol dimethacrylate (EGDMA) to investigate their suitability for cell microencapsulation. Pure HEMA (0.0% EGDMA) was obtained with preparative chromatography to
M, Feng, M V, Sefton
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Thermoplastic copolymers of 2-hydroxyethyl methacrylate (HEMA) and methyl methacrylate (MMA) (molar ratio: 75/25 HEMA-MMA) were synthesized using HEMA containing different amounts of ethylene glycol dimethacrylate (EGDMA) to investigate their suitability for cell microencapsulation. Pure HEMA (0.0% EGDMA) was obtained with preparative chromatography to
M, Feng, M V, Sefton
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