Development of probes that allow for sequence-unrestricted recognition of double-stranded DNA (dsDNA) continues to attract much attention due to the prospect for molecular tools that enable detection, regulation, and manipulation of genes. We have recently introduced so-called Invader probes as alternatives to more established approaches such as triplex-forming oligonucleotides, peptide nucleic...

Herein we report the development of a simple, rapid, homogeneous, and sensitive detection system for DNA based on the scattering properties of silver-amplified gold nanoparticle probes. The assay uses DNA-functionalized magnetic particle probes that act as scavengers for target DNA, which can be collected via a magnetic field. Once the DNA targets are isolated from the initial sample, they are ...

Development of probes capable of recognizing specific regions of chromosomal DNA has been a longstanding goal for chemical biologists. Current strategies such as PNA, triplex-forming oligonucleotides, and polyamides are subject to target choice limitations and/or necessitate non-physiological conditions, leaving a need for alternative approaches. Toward this end, we have recently introduced dou...

The sensitivity of digoxigenin and biotin labelled DNA probes for the detection of human papillomavirus (HPV) by dot blotting and in situ hybridisation was compared in tissues from cervical, laryngeal, and anogenital neoplasia. Probes were either labelled with digoxigenin by the random primer technique and detected with anti-digoxigenin antibody, or labelled with biotin by nick translation and ...

background: candida albicans (c. albicans) is a major cause of candidaemia in people with impaired immunity. blood culture is a “gold standard” for candidaemia detection but is time-consuming and relatively insensitive. we established a real-time pcr assay for c. albicans detection in blood by lightcycler pcr and melting curve analysis. methods: five milliliter blood samples from healthy volunt...

BACKGROUND We used human papillomaviruses (HPV) as a model system to evaluate the utility of a nucleic acid, hybridization-based bioelectronic DNA detection platform (eSensor) in identifying multiple pathogens. METHODS Two chips were spotted with capture probes consisting of DNA oligonucleotide sequences specific for HPV types. Electrically conductive signal probes were synthesized to be comp...