The book starts with an overview of the single molecule/particle catalysis by introducing concisely the history of some typical study methods for single molecule/particle nanocatalysis (Chapter 1), showing the origins of all kinds of techniques for the detection of some weak signals. Then, there are individual discussions based on different detection tools. Firstly, the physical/mathematical b…
Titanium dioxide nanoparticles (TiO2-NPs,
The internal transcribed spacer (ITS) of nuclear ribosomal DNA is one of the most commonly used DNA markers in plant phylogenetic and DNA barcoding analyses, and it has been recommended as a core plant DNA barcode. Despite this popularity, the universality and specificity of PCR primers for the ITS region are not satisfactory, resulting in amplification and sequencing difficulties. By thoroug…
Titanium dioxide nanoparticles (TiO2-NPs,
Abstract Oriented ZnO nanorods were grown on ionbeam-sputtered ZnO seed layers through a hydrothermal approach without any metal catalyst. The sputtered ZnO seed layers were pre-annealed at different temperatures before the growth of ZnO nanorods. The effects of pre-annealing of the ZnO seed layers on the growth rate, crystallinity and optical properties of ZnO nanorods thereon were studied. …
BACKGROUND: Probiotics are widely used in the food industry and medicine fields in China, but few studies have been conducted to evaluate the actual microbial amounts and species in probiotic products, which may conflict with the labels and mislead consumers to choose inappropriate foods or medicines. RESULTS: Twenty commercial dairy products and eight commercial ‘healthcare’ samples were …