title: Co-metal-organic-frameworks with pure uniform crystal morphology prepared via Co2+exchange-mediated transformation from Zn-metallogels for luminol catalysed chemiluminescence.
abstract: Cation exchange-mediated transformation from Zn-metallogels (MOGs), which was a mild facile strategy relative to the demanding hydrothermal method, was employed to develop Co2+metal-organic frameworks (Co-MOFs) at room temperature. The obtained Co-MOFs was of uniform octahedral morphology and possessed high activity to catalyze luminol chemiluminescence without extra oxidants. By adding cysteine, the CL emission of luminol-Co-MOFs system was further enhanced. Based on this phenomenon, Co-MOFs was utilized to build a practical sensing platform for cysteine determination. Under the optimized conditions, the relative CL intensity (ΔI) was proportional to the concentration of cysteine in the range of 2-10μM, and the detection limit was 0.49μM (3S/N). Moreover, the established method was applied to the determination of cysteine in commercially available pharmaceutical injections.
authors.affiliation: Key Laboratory of Luminescent and Real-Time Analytical Chemistry, Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China.
authors.forename: Xue Qian
authors.initials: XQ
authors.lastname: Tang
authors.affiliation: Key Laboratory of Luminescent and Real-Time Analytical Chemistry, Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China.
authors.forename: Bo Wen
authors.initials: BW
authors.lastname: Xiao
authors.affiliation: College of Pharmaceutical Science, Southwest University, Chongqing 400716, China.
authors.forename: Chun Mei
authors.initials: CM
authors.lastname: Li
authors.affiliation: Key Laboratory of Luminescent and Real-Time Analytical Chemistry, Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China.
authors.forename: Dong Mei
authors.initials: DM
authors.lastname: Wang
authors.affiliation: Key Laboratory of Luminescent and Real-Time Analytical Chemistry, Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China.
authors.forename: Cheng Zhi
authors.initials: CZ
authors.lastname: Huang
authors.affiliation: Key Laboratory of Luminescent and Real-Time Analytical Chemistry, Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China. Electronic address: liyf@swu.edu.cn.
authors.forename: Yuan Fang
authors.initials: YF
authors.lastname: Li
mesh_terms: D002138:Calibration; D002384:Catalysis; D003035:Cobalt / Q000737:chemistry*; D003460:Crystallization; D003545:Cysteine / Q000737:chemistry; D005782:Gels / Q000737:chemistry*; D007700:Kinetics; D008163:Luminescent Measurements / Q000379:methods*; D008165:Luminol / Q000737:chemistry*; D008670:Metals / Q000737:chemistry*; D014961:X-Ray Diffraction; D015032:Zinc / Q000737:chemistry*
chemical_list: D005782:Gels; D008670:Metals; D003035:Cobalt; D008165:Luminol; D015032:Zinc; D003545:Cysteine
keywords: Chemiluminescence; Co-metal-organic frameworks; Cyesteine; Metallogels transformation