This work reports the preparation of molecularly imprinted polymer (MIP) particles for selective extraction and determination of silver ions from aqueous media. Various parameters were optimized, such as pH, time, concentration of sample and type of eluent for elution of silver from polymer. Also Interfering effect was investigated on the absorption of silver by molecularly imprinted polymer. A...

this study was designed to elucidate the effect of ascorbic acid on salivary total antioxidant capacity in smokers. in this single blind crossover clinical trial, the whole unstimulated saliva of 30 smokers, who were randomly divided into two groups, was collected. in the first phase after the saliva collection, one group of patients took 500 mg of vitamin c powder, for 3 weeks. then, saliva of...

although salivary alkaline phosphatase (alp) can balance de- and remineralization processes of enamel, there is no evidence regarding its effects on the concentrations of calcium and phosphate in saliva. the present study aims to determine the relationship between salivary alp activity and the concentrations of calcium and phosphate in saliva. in this cross-sectional study, we evaluated salivar...

background: immunochromatographic based rk39 antibody detection test became popular for the diagnosis of vis­ceral leishmaiasis (vl) because of high sensitivity, rapidity, easy to interpret, and cost effectiveness. however, false positive result after complete cure of the patients is the major limitation with this test. the aim of the study to access the usefulness of non-invasive samples i.e. ...

introduction: to assess the salivary composition of proteins and minerals in smokers compared with non-smokers.   materials and methods: in this study we compared the total protein and ca, na, k, mg, pb of whole saliva in two groups of men (28 smokers and 31nonsmokers) aged between 29-41years.   results: fifty-nine participants were evaluated. the mean age was 33.14±5.32 years among smokers and...

OBJECTIVES The aim of this study was to compare the pattern of secretion and the expression of mucin glycoprotein-2 (MG2) and lactoferrin in individuals with or without periodontitis. MATERIAL AND METHODS Five individuals with aggressive periodontitis (APG), 5 with generalized chronic periodontitis (CPG) and 5 without periodontitis (CG) were enrolled after informed consent. Non-stimulated and...

IN AN ATTEMPT to establish normal osniotic pressure values for mixed humamm saliva, it was decided to measure the osnmolality of this biologic fluid by the vapor pressure lowering niethod reported earlier (1). It was found timat centrifugatioiu of the organic debris usually fommd in mixed saliva yielded a supernataimt fluid capable of benig analyzed by this technic. Samples of saliva were colle...

The innovative titanium-magnesium composite (Ti-Mg) was produced by powder metallurgy (P/M) method and is characterized in terms of corrosion behavior. Material and methods: Two groups of experimental material, 1 mass% (Ti-1Mg) and 2 mass% (Ti-2Mg) of magnesium in titanium matrix, were tested and compared to commercially pure titanium (CP Ti). Immersion test and chemical analysis of four soluti...

Many orthodontists believe that the only way to maintain perfect alignment after treatment is some form of permanent retention. Considering the antibacterial properties of silver ions, this in vivo study aimed to investigate the effects of silver ion coating of orthodontic fixed retainers on gingival health in rabbits. In this experimental study 24 adult male New Zealand rabbits, weighing appro...