Detection of possessing gene using gold nanoparticle probe.

Objective: The aerolysin (aerA) is a virulence indicator used to identify the pathogenicity of the strain. Targeting a pathogen's crucial virulence gene for detection is essential, as it determines the potential threat to the host. This study aimed to develop a gold nanoparticle (AuNP) probe for detecting the gene A in among field samples.

Gold nanoparticle-based probes for the colorimetric detection of Mycobacterium avium subspecies paratuberculosis DNA.

Gold nanoparticle (AuNP) is considered to be the most stable metal nanoparticle having the ability to be functionalized with biomolecules. Recently, AuNP-based DNA detection methods captured the interest of researchers worldwide. Paratuberculosis or Johne's disease, a chronic gastroenteritis in ruminants caused by Mycobacterium avium subsp.

Green synthesis of gold nanoparticles reduced and stabilized by sodium glutamate and sodium dodecyl sulfate.

The Turkevich method has been used for many years in the synthesis of gold nanoparticles. Lately, the use of plant extracts and amino acids has been reported, which is valuable in the field of biotechnology and biomedicine. The AuNPs was synthesized from the reduction of HAuCl4 3H2O by sodium glutamate and stabilized with sodium dodecyl sulfate.

Untypical [VOPO4]- layer in vanadyl phosphates with variant interlayer gap of double-tiered template.

Four new organically templated layered vanadyl(IV) phosphates, (Hcha)VOPO(4) x 0.5 H(2)O (cha = cyclohexylamine) (1), (Hchpa)VOPO(4) x 0.5 H(2)O (chpa = cycloheptylamine) (2), (Hcha)(0.