An immunochromatographic test system based on the indirect competitive format has been developed for rapid control of cyanotoxin microcystin-LR (MC-LR) in drinking water. To increase assay sensitivity, a hydroquinone-based reduction silver ions surface gold nanoparticles as part immune complexes formed membrane carried out. This stage allows enhancement colouration strip zones. The is character...

A simple and affordable method of evaluating blood coagulation ability using microfluidic paperbased lateral flow assay (LFA) device is reported. Rabbit whole blood treated with citrate as anticoagulant was used in experiments. Re-establishment of blood coagulation cascade and creation of different coagulation abilities were achieved by adding CaCl2 solutions of varying concentrations. Since vi...

To assess the extent to which endothelial cell (EC) structure is modified by hyperlipidemia and by the formation of intimal plaques, we undertook a quantitative ultrastructural study of aortic EC of cynomolgus monkeys after 3 or 6 months on an atherogenic diet. We compared EC in lesion-free areas (LFA) with EC overlying focal discrete foam cell accumulations (FDA) or covering multilayered confl...

BACKGROUND Detection of subclinical cryptococcal disease using cryptococcal antigen screening among HIV-positive individuals presents a potential opportunity for prevention of both clinical disease and death if patients with detectable cryptococcal antigen are identified and treated pre-emptively. Recently developed point-of-care cryptococcal antigen tests may be useful for screening, particula...

The majority of lateral flow assays (LFAs) use single-color optical labels to provide a qualitative naked-eye detection, however this detection method displays two important limitations. First, the label makes LFA prone results misinterpretation. Second, it does not allow precise modulation sensitivity and dynamic range test. To overcome these limitations, ratiometric approach is developed. In ...

We investigated potential protein markers of post-mortem interval (PMI) using rat kidney and psoas muscle. Tissue samples were taken at 12 h intervals for up to 96 h after death by suffocation. Expression levels of eight soluble proteins were analyzed by Western blotting. Degradation patterns of selected proteins were clearly divided into three groups: short-term, mid-term, and long-term PMI ma...

Zeolitic imidazolate framework (ZIF) hybrid fluorescent nanoparticles and ZIF antibody conjugates have been synthesized, characterized, employed in lateral-flow immunoassay (LFIA). The bright fluorescence of the possibility to tailor their mobility gives a huge potential for diagnostic assays. An enzyme-linked immunosorbent assay (ELISA) with horseradish peroxidase (HRP) as label, proved integr...

A polymerase chain reaction-gold magnetic nanoparticles lateral flow assay (PCR-GoldMag LFA) has been developed via integrating multiplex amplification refractory mutation system PCR (multi‑ARMS‑PCR) with GoldMag‑based LFA for the visual detection of single‑nucleotide polymorphisms (SNPs). This assay was applied to genotype Apolipoprotein E (ApoE). ApoE genotyping is important due to the predic...