Abstract The performance of ultrasonic motor will drift due to material degradation and other reasons during long-term storage, which directly affect the working after storage. Aiming at optimization design geometric parameters for storage degradation, this paper takes piezoelectric constant d 31 ceramic chip elastic modulus colloid as characterization product stator tooth spacing thickness rub...

A comparative study of two coating methods on titanium (Ti) substrates, sol-gel and electrophoresis processes, was performed. Before coating, two different surface treatments were employed. The hydroxyapatite (HA) powder were characterized by infrared spectroscopy (FTIR) and X-ray diffraction (XRD) while coated samples were examined by using scanning electron microscopy (SEM) with energy disper...

BACKGROUND AND AIMS Oral mucosa and interproximal spaces of the teeth could favor the colonization of periodontopathogenic bacteria, which could be targeted by chemical antiplaque agents such as chlorhexidine, present in different oral hygiene products, thus improving the control of biofilm growth and delaying microbial accumulation. The study aimed to evaluate whether the use of a hydrophobic ...

conclusions algino-pectinate mucoadhesive formulations exhibited promising properties of a sustained release form for piroxicam and provided distinct tissue protection in stomach. objective the purpose of this research was to decrease gastric side effects of piroxicam by formulating microspheres of alginate and algino-pectinate beads of the drug. materials and methods ionotropic gelation was us...

<p>Body impedance analysis (BIA) is used to evaluate the human body composition by measuring resistance and reactance of tissues with a high-frequency, low-intensity electric current. Nonetheless, estimation influenced many factors: status, environmental conditions, instrumentation, measurement procedure. This work studies effect connection cables, conductive electrodes, adhesive gel, BIA...

Purpose: To compare and evaluate the shear bond strength of three different fifth generation dentin bonding agents used with composite resin and to determine the mode of bond failure in each case. Materials and methods: Forty-five freshly extracted human permanent molars were used and the specimens were divided into three test groups (N = 15) namely group A = Excite, group B = single Bond, grou...

Present research is about the In-situ gels for site specific delivery. In the present work, formulations with chitosan, bioadhesive and permeation enhancer and gellan gum ion activable gelling polymer and temperature sensitive polymeric systems was used for In-situ geliling. The developed formulations was characterized for various in-vitro parameters e.g. clarity, pH, isotonicity, viscosity, dr...

In this study, different surface pretreatments were applied to clean and activate titanium alloy surfaces. The samples subjected grit blasting treatments using two pressures afterwards, a UV/Ozone treatment was at times study the wettability oxidation of samples. Scanning electron microscopy laser confocal showed morphology increased roughness with pressure. X-ray Photoelectron Spectroscopy rev...