alpha cellulose/dental caries

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Fluorescent cyclodextrin immobilized on a cellulose membrane as a chemosensor system for detecting molecules.

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Dansyl glutamate-modified cyclodextrin (DnsGlu-beta-CD) was prepared as a fluorescent host, which is capable of being immobilized on a cellulose membrane (DnsGlu-beta-CD-membrane). The fluorescence intensity of DnsGlu-beta-CD decreased with increasing concentration of guest molecules, indicating

Immobilized fluorescent cyclodextrin on a cellulose membrane as a chemosensor for molecule detection.

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Dansylglycine-modified cyclodextrin (DnsC4-beta-CD) was prepared as a fluorescent host that is capable of being immobilized on a cellulose membrane (DnsC4-beta-CD membrane). DnsC4-beta-CD immobilized on the cellulose membrane decreased its fluorescence intensity with increasing concentration of

Hair-inspired crystal growth of HOA in cavities of cellulose matrix via hydrophobic-hydrophilic interface interaction.

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As one of the most ordinary phenomena in nature, numerous pores on animal skins induce the growth of abundant hairs. In this study, cavities of a cellulose matrix were used as hard templates to lead the hair-inspired crystal growth of 12-hydroxyoctadecanoic acid (HOA) through hydrophobic-hydrophilic

Enhanced light scattering from hollow polycrystalline TiO2 particles in a cellulose matrix.

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Hollow and core-shell rutile particles were synthesized, and their opacifying power in a cellulose matrix was compared with that of commercial solid rutile particles. It was found that the opacifying power of hollow polycrystalline rutile particles was superior to that of a commercial rutile pigment

Slow release of tetracycline hydrochloride from a cellulose membrane used in guided tissue regeneration.

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The objective of this study was to evaluate if the biologic membrane utilized for GTR can be impregnated by tetracycline hydrochloride and if the chemotherapeutic agent, once impregnated, can be released in minimal inhibitory concentrations for a period compatible with clinical application.

Resolution of enantiomeric amides on a cellulose-based chiral stationary phase. Steric and electronic effects.

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A series of enantiomeric amides were resolved on a commercially available chiral stationary phase (CSP) consisting of cellulose tribenzoate coated on macroporous silica. The amides were synthesized from several homologous series of aliphatic and aromatic chiral amines and a series of aliphatic

Resolution of enantiomeric amides on a cellulose tribenzoate chiral stationary phase. Mobile phase modifier effects on retention and stereo-selectivity.

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The effect of the steric structure and concentration of the mobile phase modifier on the retention (kappa') and stereoselectivity (alpha) of a series of enantiomeric amides has been investigated. The amides were chromatographed on a commercially available cellulose tribenzoate chiral stationary

Insights into chromatographic enantiomeric separation of allenes on cellulose carbamate stationary phase.

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Allenes are cumulenes with three contiguous carbons linked together through double bonds. 1,3-disubstituted allenes are not superimposable on their mirror image; as a consequence they are chiral. Chiral allenes are increasingly important in organic synthesis due to their interesting reactivity.

Cellulose nanofibril based graft conjugated polymer films act as a chemosensor for nitroaromatic.

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A cellulose nanofibril film is modified by chemical assembly of boronate-terminated conjugated polymer chains at its specific sites, C-6 carboxyl groups. The modified cellulose nanofibril film is used as a fluorescent sensor for nitroaromatic vapor. Thanks to the specific reactive sites, numerous

Mortality of cellulose fiber production workers.

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Mortality was studied among 1271 employees of a cellulose fiber production plant in Rock Hill, South Carolina, in the United States. Each subject was employed for at least three months between 1 January 1954 and 1 January 1977 in jobs that entailed exposure to the highest concentrations of methylene

Effect of ring liner and casting ring temperature on the dimension of cast posts.

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BACKGROUND If a post does not fit passively, binding with the radicular tooth structure occurs, possibly increasing the risk for root fracture. Therefore, it is necessary to fabricate slightly undersized cast posts to allow for passive fit and cement placement. Shrinkage of the mold cavity may be a

Range of xenogeneic donors whose hematopoietic cells can form colonies on macrophage layer of mice.

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The colony-forming ability of hematopoietic cells derived from 18 species of rodents was examined on the mouse macrophage layer which formed on a cellulose acetate membrane inserted into the peritoneal cavity of mice. Bone marrow cells of 12 xenogeneic species made a considerable number of colonies

Mucoadhesive bilayered tablets for buccal sustained release of flurbiprofen.

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The aim of this work was the design of sustained-release mucoadhesive bilayered tablets, using mixtures of mucoadhesive polymers and an inorganic matrix (hydrotalcite), for the topical administration of flurbiprofen in the oral cavity. The first layer, responsible for the tablet retention on the

Targeted intraabdominal chemotherapy for peritoneal carcinomatosis.

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The prognosis of peritoneal spread from gastrointestinal cancer and subsequent malignant ascites is poor, and current medical treatments available are mostly ineffective. Targeted chemotherapy with intraperitoneal prodrug activation may be a beneficial new approach. L293 cells were genetically

The effect of point-of-use water conditioning systems on community fluoridated water.

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The purpose of this investigation was to determine the effect of several point-of-use water conditioning systems on the fluoride concentration in community fluoridated water. Point-of-use water conditioning systems attach at the sink to provide the user with protection from certain water

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