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resorcinol/dantų ėduonis
Nuoroda įrašoma į mainų sritį
Puslapis 1 nuo 33 rezultatus
Symptomatic caliceal diverticula treated with extraperitoneal laparoscopic marsupialization fulguration and gelatin resorcinol formaldehyde glue obliteration.
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OBJECTIVE
The treatment of symptomatic stone filled caliceal diverticula has evolved from open surgery to less invasive procedures, such as extracorporeal shock wave lithotripsy, percutaneous techniques, retrograde ureteroscopy and laparoscopy, but it remains controversial. We describe a
Mitral Valve Necrosis After Cardiac Surgery Using Gelatin-Resorcinol-Formaldehyde Glue.
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We present a rare case of mitral regurgitation with anterior mitral leaflet perforation associated with gelatin-resorcinol-formaldehyde (GRF) glue. We performed mitral valve replacement for anterior mitral leaflet perforation occurred 7 years after aortic valve replacement and abscess cavity repair
Postinfarction ventricular septal perforation repair with endoventricular circular patch plasty using double patches and gelatin-resorcinol-formaldehyde biological glue.
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We describe a technique for repairing the ventricular septal perforation 10 days post acute anteroseptal myocardial infarction using the modified infarction exclusion method. The repair involves endoventricular circular patch plasty and application of gelatin-resorcinol-formaldehyde biological glue
An improved synthesis of 'octa-acid' deep-cavity cavitand.
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An improved synthesis of a water-soluble deep-cavity cavitand (octa-acid, 1) is presented. Previously (Gibb, C. L. D. & Gibb, B. C., J. Am. Chem. Soc., 2004, 126, 11408-11409) we documented access to host 1 in eight (non-linear) steps starting from resorcinol; a synthesis that required four steps
A general and high yielding fragment coupling synthesis of heteroatom-bridged calixarenes and the unprecedented examples of calixarene cavity fine-tuned by bridging heteroatoms.
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A number of aza- and/or oxo-bridged calix[2]arene[2]triazines have been synthesized through an unusually high yielding and efficient fragment coupling approach starting from cyanuric chloride and resorcinol, 3-aminophenol, m-phenylenediamine, and N,N'-dimethyl-m-phenylenediamine. These novel
Visualization of root caries lesions by means of a diazonium dye.
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A diazonium dye was used to visualize caries lesions in root tissue. Root caries lesions were created in vitro according to a variety of protocols based on methylcellulose gel (6% w/v) and/or lactic acid buffer (0.05 M, pH 4.5). Teeth containing lesions were soaked overnight in an alkaline solution
Highly selective recognition of diols by a self-regulating fine-tunable methylazacalix[4]pyridine cavity: guest-dependent formation of molecular-sandwich and molecular-capsule complexes in solution and the solid state.
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The molecular recognition of methylazacalix[4]pyridine (MACP-4; 1) towards various diols was investigated by using (1)H NMR spectroscopic and X-ray diffraction analysis. As a unique macrocyclic host molecule that undergoes conformational inversions very rapidly in solution, MACP-4 has been shown to
Noncovalent Interactions Accompanying Encapsulation of Resorcinol within Azacalix[4]pyridine Macrocycle.
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Electronic structure and noncovalent interactions within the inclusion complexes of resorcinol and calix[4]pyridine (CXP[4]) or azacalix[4]pyridine (N-CXP[4]) macrocycles have been analyzed by employing hybrid M06-2X density functional theory. It has been demonstrated that substitution of a
Yolk-Shell Fe 3 O 4 @Void@N-Carbon Nanostructures Based on One-Step Deposition of SiO 2 and Resorcinol-3-Aminophenol-Formaldehyde (R-APF) Cocondensed Resin Dual Layers onto Fe 3 O 4 Nanoclusters
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Yolk-shell magnetic nanoparticles@nitrogen-enriched Carbon nanostructures with a magnetic core and a hollow nitrogen-enriched carbon shell exhibit considerable promise in various applications, such as drug delivery, heterogenous catalysts, removal of metal ions and organic pollutants, and screening
Macrotricycles featuring a pi-basic tetrahedral cavity: preference for NH4+ detected by electrospray ionization mass spectrometry.
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Cation-pi interactions play an important role in biology. The title compounds are C3-symmetric macrotricycles built from resorcinol, a pi electron-rich arene. They were prepared in up to 18% yield by intramolecular cyclization of 1,3,5-trisubstituted benzene tripods bearing pendant resorcinol
In vitro studies of the penetration of adhesive resins into artificial caries-like lesions.
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Instead of removing the porous carious tissue at a relatively late stage in the disease process, attempts have been made to 'fill' the microporosities of lesions at a much earlier stage of lesion development. This would not only reduce the porosity and therefore access of acid and egress of
Molecular clips based on propanediurea: exceptionally high binding affinities for resorcinol guests.
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A series of new receptor molecules derived from 2,4,6,8-tetraazabicyclo[3.3.1]nonane-3,7-dione (propanediurea) is described. These molecules possess a cavity which is defined by two nearly parallel aromatic side walls positioned on top of a bis-urea framework. The resulting "U-shaped" clip molecules
Aspergillus oryzae type III polyketide synthase CsyA is involved in the biosynthesis of 3,5-dihydroxybenzoic acid.
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As a novel superfamily of type III polyketide synthases in microbes, four genes csyA, csyB, csyC, and csyD, were found in the genome of Aspergillus oryzae, an industrially important filamentous fungus. In order to analyze their functions, we carried out the overexpression of csyA under the control
Thermodynamic study of β-cyclodextrin-dye inclusion complexes using gradient flow injection technique and molecular modeling.
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Gradient flow injection technique-diode array spectrophotometry was applied for β-cyclodextrin (β-CD)-dye inclusion complex studies. A single injection of a small amount of mixed β-CD-dye solution (100μl) into the carrier solution of the dye and recording the spectra gave the titration data. The
Photochemical reaction containers as energy and electron-transfer agents.
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Two deep cavity cavitands, octa acid and resorcinol-capped octa acid, have been established to be good triplet energy donors in the excited state and electron donors in the ground state to excited acceptors. This property endows them the capacity to be "active" reaction containers. The above
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