10.1021/acsami.9b01123.s001 Yongquan Luo Yongquan Luo Lei Zhang Lei Zhang Lingyi Zhang Lingyi Zhang Bohao Yu Bohao Yu Yajie Wang Yajie Wang Weibing Zhang Weibing Zhang Multiporous Terbium Phosphonate Coordination Polymer Microspheres as Fluorescent Probes for Trace Anthrax Biomarker Detection American Chemical Society 2019 probe Trace Anthrax Biomarker Detection Lanthanide coordination polymers Multiporous Terbium Phosphonate Coordination Polymer Microspheres 8.0 μ M trace anthrax biomarker dipicolinate acid sensitivity detection fluorescence turn-on response capability selectivity DPA RSD multiporous terbium phosphonate coordination polymer microspheres as-prepared TbP-CPs 2019-04-05 00:00:00 Journal contribution https://acs.figshare.com/articles/journal_contribution/Multiporous_Terbium_Phosphonate_Coordination_Polymer_Microspheres_as_Fluorescent_Probes_for_Trace_Anthrax_Biomarker_Detection/8007941 Lanthanide coordination polymers have been recently regarded as attractive sensing materials because of their selectivity, high sensitivity, and rapid response ability. In this research, the multiporous terbium phosphonate coordination polymer microspheres (TbP-CPs) were prepared as a novel fluorescent probe, which showed a fluorescence turn-on response capability for the detection of the trace anthrax biomarker dipicolinate acid (DPA). The morphology and chemical composition of as-prepared TbP-CPs were characterized in detail. The TbP-CPs have the vegetable-flower-like structure and microporous surface. In addition, the as-prepared TbP-CPs not only possess the merits of convenience and simple preparation with high yield but also have the excellent characters as fluorescent probes, such as high stability, good selectivity, and rapid detection ability within 30 s. This proposed sensor could detect DPA with a linear relationship in concentrations ranging from 0 to 8.0 μM and a high detection sensitivity of 5.0 nM. Furthermore, the successful applications of DPA detection in urine and bovine serum were demonstrated. As a result, the recovery ranged from 93.93–101.6%, and the relative standard deviations (RSD) were less than 5%.