title: Luminescent lanthanide graphene for detection of bacterial spores and cysteine.
abstract: Here, we describe a new approach for preparation of luminescent lanthanide graphene in the presence of dipicolinic acid (DPA). Hg(2+) can competitively bind with DPA which greatly quenches the fluorescence and the resultant complex is able to selectively and sensitively detect cysteine with a detection limit of 5 nM.
authors.affiliation: Department of Nanomedicine, Houston, Methodist Hospital Research Institute, 6670 Bertner ave, Houston, Texas 77030, USA. ysong@houstonmethodist.org wenjincookie@163.com.
authors.forename: Yuzhen
authors.initials: Y
authors.lastname: Wang
authors.forename: Ying
authors.initials: Y
authors.lastname: Li
authors.forename: Wenjin
authors.initials: W
authors.lastname: Qi
authors.forename: Yujun
authors.initials: Y
authors.lastname: Song
mesh_terms: D001408:Bacillus anthracis / Q000737:chemistry*; D003545:Cysteine / Q000032:analysis*; D005453:Fluorescence; D006108:Graphite / Q000737:chemistry*; D028581:Lanthanoid Series Elements / Q000737:chemistry*; D049449:Luminescence; D008628:Mercury / Q000737:chemistry; D010848:Picolinic Acids / Q000737:chemistry; D013171:Spores, Bacterial / Q000737:chemistry* / Q000302:isolation & purification*
chemical_list: D028581:Lanthanoid Series Elements; D010848:Picolinic Acids; D006108:Graphite; D008628:Mercury; D003545:Cysteine; C004860:dipicolinic acid