文献类型：期刊文献

英文题名：Monitoring and quantification of the complex bioaccumulation process of mercury ion in algae by a novel aggregation-induced emission fluorogen

作者：Jiang, Yusheng[1,2];Chen, Yuncong[3];Alrashdi, Maha[4];Luo, Wen[2,5];Tang, Ben Zhong[3];Zhang, Jihong[6];Qin, Jianguang[2];Tang, Youhong[4]

机构：[1]Dalian Ocean Univ, Coll Aquaculture & Life Sci, Dalian 116023, Liaoning, Peoples R China;[2]Flinders Univ S Australia, Sch Biol Sci, Bedford Pk, SA 5042, Australia;[3]Hong Kong Univ Sci & Technol, Dept Chem, Hong Kong, Hong Kong, Peoples R China;[4]Flinders Univ S Australia, Ctr Nanoscale Sci & Technol, Bedford Pk, SA 5042, Australia;[5]Shaoxing Univ, Sch Life Sci, Shaoxing Shi 312000, Zhejiang, Peoples R China;[6]Dalian Univ Technol, Coll Food Sci & Engn, Dalian 116023, Liaoning, Peoples R China

年份：2016

卷号：6

期号：102

起止页码：100318

外文期刊名：RSC ADVANCES

收录：SCI-EXPANDED(收录号：WOS:000386439800085)、、EI(收录号：20164502982181)、Scopus(收录号：2-s2.0-84994048606)、WOS

基金：Y. Jiang and W. Luo are grateful for the support of the China Scholarship Council (CSC) and Shaoxing University with a visiting scholar program to Flinders University respectively. Y. Tang is grateful for the support from Flinders University through the Faculty of Science and Engineering Establishment Grant.

语种：英文

外文关键词：Algae - Aquatic ecosystems - Aquatic organisms - Biochemistry - Heavy metals - Mercury (metal) - Water pollution

外文摘要：In this study, a novel methodology was developed using a specified aggregation-induced emission fluorogen (AIEgen) to monitor and quantify the complex bioaccumulation process in a microcosm aquatic ecosystem. Mercury ion (Hg2+) was used as the pollutant and Euglena gracilis as a representative algal species in water, to develop this new methodology for understanding the processes of bioaccumulation and biorelease of a heavy metal in algae. AIEgen can easily detect Hg2+ in the environment by the "turn-on" feature, and a relationship was built among photoluminescence (PL) intensity, AIEgen concentration, and Hg2+ concentration. The AIEgen was effectively used for quantifying Hg2+ concentration in the bioaccumulation process by reading the PL intensity of the solution. Bioaccumulation, bioaccumulation efficiency, and the ratio of Hg2+ in Euglena gracilis cells and the environment were carefully characterized by this novel method and the results were further validated with the existing well-established analytical method. The quantitative detection of Hg2+ absorption and release from the algae by the AIEgen demonstrates a novel, green, and sustainable approach to understand the dynamics of Hg2+ between aquatic organisms and the environment.