Semiconductor quantum dots (QDs) are brightly luminescent nanoparticles that have found numerous applications in bioanalysis and bioimaging. In this review, we highlight recent developments in these areas in the context of specific methods for fluorescence spectroscopy and imaging. Following a primer on the structure, properties, and biofunctionalization of QDs, we describe select examples of h...

Hepatitis E virus (HEV) which is mainly transmitted through faecal-oral route, can also be transmitted via parenteral and vertical route. Recent studies suggest zoonotic nature of the virus. The last studies done in Turkey indicate increasing frequency of HEV infection. This study was conducted to determine the rate of anti-HEV seropositivity among patients with terminal stage renal failure und...

Since its discovery in 1974 by Martin Fleischmann et al., surface-enhanced Raman scattering (SERS) has become a powerful sensing and imaging technique in biomedicine. SERS is based on the physical phenomenon of plasmon resonance whereby the inelastic scattering of photons can be significantly enhanced during the adsorption of molecules on metallic surfaces. A widely accepted mechanism for this ...

In the past two decades chemically modified electrodes (CME) have attracted considerable interest of researchers to exert a direct control over the chemical nature of electrodes. CMEs have found a large number of useful applications in different fields viz. selective electroorganic synthesis, biomedical analysis, electro analyses etc. The ability to manipulate the molecular architecture of bulk...

introduction: although the hepatitis e virus mostly causes a self-limited disease in general population, but the disease is more severe in pregnant women. hepatitis e accounts for about 10% of pregnancy associated deaths in southern asia. but the prevalence in iran is almost unclear, so this study is aimed to investigate the seroprevalence of anti-hev igg among a population of pregnant women in...

microcantilevers (mcls) are cost-effective and highly sensitive devices for biodetection. adsorption of specific analytes on the microcantilever surface causes the bending of mcl through changing of the surface characteristics. these new bioprobes designed in a way that one side of the microcantilever surface is coated with a selective receptor that absorbs particular molecules. after surface a...

Objective: HTLV-1 and HTLV-2 are widespread worldwide and endemic in several areas such as Northeastern Iran. The present survey aimed to determine the prevalence of HTLV-1 and HTLV-2 among healthy individuals in Neyshabour City during the years of 2010-2014. Methods: A total of 8054 blood samples were collected from participants referred to the great medical diagnostic laboratory in Neyshabur,...

In article 1600197, Xueyuan Chen and co-workers report a novel luminescent bioassay technique, namely, dissolution-enhanced luminescence bioassay based on inorganic lanthanide nanoprobes, for ultrasensitive in-vitro detection of tumor markers in human sera or saliva, such as carcinoembryonic antigen, prostate specific antigen and alpha-fetoprotein, with detection sensitivities several orders of...