Expression of virulence and antimicrobial related proteins in Burkholderia mallei and Burkholderia pseudomallei

Meliodosis and glanders are both potential biological threat agents. Glanders is endemic in Southeast Asia and Northern Australia but occasionally found in other countries. Meliodosis is caused by Burkholderia pseudomallei, while glanders is caused by Burkholderia mallei. The diagnosis of these diseases is difficult because the clinical picture...

Combining CRISPR–Cas12a with terminal deoxynucleotidyl transferase dependent reporter elongation for pathogen detection using lateral flow test strips

CRISPR–Cas (CC)-based detection technologies have some exceptional features, which hold the promise of developing into the nextgeneration diagnostic platforms. One of these features is the ability to trigger non-specific single-stranded DNA/RNA cleavage activity after specific target recognition and Cas enzyme activation. This cleavage activity...

Proteomics, an agnostic approach to detect emerging viruses - Poster -

The COVID-19 pandemic, but also MERS, SARS-1, monkeypox and other emerging biological threats have shown the pitfalls of diagnostics targeting only one or, at best, a limited number of pathogens. To overcome this, a next generation diagnostic platform that is causative-agent agnostic is developed. Moreover, the method is able to identify 1895...

Bright fluorescent nucleic acid detection with CRISPR-Cas12a and poly(thymine) templated copper nanoparticles

Fluorescence-based diagnostic tools are attractive and versatile tests with multiple advantages: ease of use, sensitivity and rapid results. The advent of CRISPR-Cas technology has created new avenues for the development of diagnostic testing tools. In this study, by effectively combining the specific functions of two enzymes, CRISPR-Cas12a and...

Immobilized regenerable active chlorine within a zirconium-based MOF textile composite to eliminate biological and chemical threats

The most recent global health crisis caused by the SARS-CoV-2 outbreak and the alarming use of chemical warfare agents highlight the necessity to produce efficient protective clothing and masks against biohazard and chemical threats. However, the development of a multifunctional protective textile is still behind to supply adequate protection...

Phylogenetic analysis of the bacterial Pro-Pro-endopeptidase domain reveals a diverse family including secreted and membrane anchored proteins

Pro-Pro-endopeptidases (PPEP, EC 3.4.24.89) are secreted, zinc metalloproteases that have the unusual capacity to cleave a peptide bond between two prolines, a bond that is generally less sensitive to proteolytic cleavage. Two well studied members of the family are PPEP-1 and PPEP-2, produced by Clostridioides difficile, a human pathogen, and...

Untargeted accurate identification of highly pathogenic bacteria directly from blood culture flasks

To improve the preparedness against exposure to highly pathogenic bacteria and to anticipate the wide variety of bacteria that can cause bloodstream infections (BSIs), a safe, unbiased and highly accurate identification method was developed. Our liquid chromatography-tandem mass spectrometry (LC–MS/MS)-based method can identify highly pathogenic...