The 3D microfluidic device (3D micro-channel device) also known as a «blood detection chip» [1], provides rapid process flow and requires only small blood sample for the of biological information.

background: in spite of available, and sensitive screening assay for detection of hepatitis b virus surface antigen (hbsag), occasional cases of post-transfusion hepatitis b virus infection are still observed. the aim of the present study was to assess the prevalence of positive anti hepatitis b core (anti-hbc) and presence of hbv-dna in serum sample of healthy blood donors negative for both hb...

blood supply chain management is one of the mainchallenges in healthcare system. optimal locationof blood donation camps is one of the key factors in optimizing the bloodsupply chain. disruption in location of blood donation camps because ofdisasters will have a negative impact on the entire supply chain. thispaper develops a generalized network optimization model for the complex supplychain of...

Prothrombin time can be measured roughly on whole blood as in neonates, but is more commonly measured from plasma. Blood is taken into a vacutainer containing liquid citrate. Citrate acts as an anticoagulant by consuming all the calcium in the sample. The blood is mixed and centrifuged to separate blood cells from the plasma. The plasma is placed in a coagulation machine which takes a sample of...

Traditionally, marrow donor registries and transplant centers collect DNA samples from potential donors through either a blood sample or a buccal swab sample. Both of these sample types present some challenges as blood collections are invasive for the donor and swabs present time and sample quality issues. These challenges can be eliminated by using ORAcollect®•DNA to collect a DNA sample from ...

BACKGROUND The association between the method of obtaining informed consent and the consent rate in a cohort study, as well as the differences between consenters and non-consenters with regard to blood-sample donation are unclear. METHODS We measured the consent rates among 64-year-old residents who underwent medical checkups in a city for a cohort study consisting of a questionnaire survey a...

introduction: blood contamination of the canal during preparation can be a major problem in endodontics; this may result in apical microleakage. the aim of this in vitro study was to evaluate the effect of blood on apical microleakage of a resin-based root canal sealer (ah26) and a polymer-based root canal sealer (epiphany). materials & methods: in this experimental study, 50 decoronated centra...

to determine the prevalence of atherosclerosis risk factors in urban and rural population in north of Iran.a multistage survey of general population above 25 years of age was carried out by random sampling in sowmesara distriet of Gilan province.which included 973 males and 1357 females.the high risk factors investigated were :smoling,hypertension,blood lipids,confirmed diabetes,age,sex,obesity...

stem cells are naïve or master cells. this means they can transform into special 200 cell types as needed by body, and each of these cells has just one function. stem cells are found in many parts of the human body, although some sources have richer concentrations than others. some excellent sources of stem cells, such as bone marrow, peripheral blood, cord blood, other tissue stem cells and hu...