Jimei University

About: Jimei University is a education organization based out in Amoy, China. It is known for research contribution in the topics: Computer science & Population. The organization has 4645 authors who have published 4293 publications receiving 42239 citations. The organization is also known as: Jíměi Dàxué.

A fluorescent probe based on N-doped carbon dots for highly sensitive detection of Hg2+ in aqueous solutions

Abstract: A facile and green hydrothermal method was developed for the preparation of highly luminescent nitrogen-doped carbon dots (NCDs) by using anhydrous citric acid and urea as the carbon source and nitrogen source, respectively. The NCDs show good water-solubility and exhibit excitation-independent fluorescence behaviors at excitations of 300–390 nm with a quantum yield of 42.5% at a λem of 440 nm. Based on the fluorescence quenching strategy, the NCDs were successfully applied to the measurement of Hg2+ in tap and lake water samples with high sensitivity and excellent selectivity. The detection limit was 7.3 nmol L−1 (3σ, n = 9), indicating its potential applications for the detection of trace Hg2+ in water samples.

Proteomic profile analysis of Pyropia haitanensis in response to high-temperature stress

Abstract: High-temperature stress is a major abiotic stress that affects the yield and quality of Pyropia, which is produced for use as a nutrient. Pyropia haitanensis strain Z-61 is tolerant to high temperature and is widely cultivated in South China. Here, we conducted a comparative proteomic analysis of the blades of Z-61 strain at 29 °C. Changes in the proteome of the blades were analyzed every other day for 8 days at 29 °C. Approximately 1,000 protein species were reproducibly detected at all time points, whereas 87 protein spots were differentially expressed at least at one time point. Fifty-nine protein spots were successfully identified using liquid chromatography–tandem mass spectroscopy and database searching. The proteins were classified into nine functional categories: photosynthesis (27.12 %), energy metabolism (22.03 %), other metabolic pathways (11.86 %), redox homeostasis (11.86 %), response to stimuli (8.47 %), proteins involved in transcription and translation (6.78 %), cytoskeleton-related proteins (5.08 %), proteins that mediate signal transduction (1.69 %), and unknown proteins (5.08 %). These findings indicated that the blades of Z-61 resist high-temperature stress by inhibiting photosynthesis and other nonessential metabolic processes. In contrast, to increase energy metabolism, the expression of proteins related to redox homeostasis and response to stimuli were upregulated, thereby maintaining physiological balance during stress.