Selective detection of mitochondrial Cu in living cells by a near-infrared iridium(III) complex.

The widespread use of copper (Cu) has raised concerns about environmental pollution and adverse effects on human health, highlighting the need to develop copper detection methods. Developing near-infrared (NIR) luminescent probes for imaging subcellular Cu is still a challenge. In this work, we have developed a luminescence probe based on a NIR iridium(III) complex, which rapidly detects Cu by combining salicylaldehyde and amine groups through a simple Schiff base reaction on the N^N ligand.

Genetic Modulation of Biosynthetic Gas Vesicles for Ultrasound Imaging.

Gas vesicles (GVs) from microorganisms are genetically air-filled protein nanostructures, and serve as a new class of nanoscale contrast agents for ultrasound imaging. Recently, the genetically encoded GV gene clusters have been heterologously expressed in Escherichia coli, allowing these genetically engineered bacteria to be visualized in vivo in a real-time manner by ultrasound. However, most of the GV genes remained functionally uncharacterized, which makes it difficult to regulate and modify GVs for broad medical applications.

The study on the effect of mercury pollution on soil microorganisms around mercury mining area.

In order to further explore the effects of soil mercury pollution on soil microbial diversity and community structure, soil samples were randomly collected from 2 m, 20 m, 30 m, 500 m and 650 m periphery of Wanshan mining area, as 5 different treatments. Each treatment had 4 replicates. Soil microbial DNA was extracted from 20 soil samples, and then high-throughput sequencing technology was used to analyse the structure and distribution of bacterial and fungal communities.

Products of subsp. Strain F17 and Strain H52 Are Biopreservatives for Improving Postharvest Quality of 'Red Globe' Grapes.

'Red Globe' table grapes are large, edible, seeded fruit with firm flesh that tastes good, but can have poor postharvest shelf-life. This study was conducted to explore the effects of products of subsp. strain F17 and strain H52 on 'Red Globe' table grapes for the enhancement of shelf-life and improvement of grape quality characteristics during postharvest storage.

[Analysis of soil humus and components after 26 years' fertilization by infrared spectroscopy method].

The infrared spectrum was used to discuss structure change of soil humus and components of chemical groups in soil humic acids (HA) and fulvic acids (FA) isolated from soils in different fertilization treatment after 26 year's fertilization. The result indicated that using the infrared spectroscopy method for the determination of humus, humus fractions (HA and FA) and their structure is feasible. Fertilization affected the structure and content of soil humus and aromatization degree.