Hai-qin Shan

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This work reports the chiral separation of D,L-mandelic acid with cellulose membranes. Cellulose was chosen as membrane material because it possesses multichiral carbon atoms in its molecular structure unit. The flux and permselective properties of membrane using aqueous solutions of D,L-mandelic acid as feed solution was studied. The top surface and(More)
PURPOSE The objective of this study was to evaluate peri-implant bone formation and osseointegration at titanium implants coated with multiple layers of recombinant human bone morphogenetic protein-2 (rhBMP-2) cDNA placed into canine mandibles. MATERIALS AND METHODS The rhBMP-2 plasmid was assembled on sandblasted/dual-acid-etched pure titanium implant(More)
Seventeen tracheotomy patients were given gentamicin (Gen) into trachea at the dosage of 2 and 4 mg.kg-1. Gen concentration in serum was determined by fluorescence polarization immunoassay. Pharmacokinetic parameters were calculated by micro-computer pharmacokinetic program (MCPKP). T1/2Ka, Tp, and Cmax were 0.6 +/- 0.3 h, 1.7 +/- 0.7 h, and 4.6 +/- 1.8(More)
The toxicity of nitrogen in the shrimp culture water has been well established. In this study, SA beads composed of Vibrio alginolyticus VZ5, sodium alginate (SA) and sugarcane bagasse were used for ammonia nitrogen (NH4-N) and nitrite nitrogen (NO2-N) removal. A 50-day cultivation experiment was carried out in aquaria to evaluate the activity of the SA(More)
OBJECTIVE To measure the thickness of facial bone wall of maxillary anterior teeth and premolars based on cone beam computed tomography (CBCT) images. METHODS CBCT images from 118 patients were collected from the Affiliated Stomatology Hospital of Zhejiang University. The thickness perpendicular to the long axis of facial bone wall was measured at two(More)
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