title: A Post-Synthetically Modified MOF for Selective and Sensitive Aqueous-Phase Detection of Highly Toxic Cyanide Ions.
abstract: Selective and sensitive detection of toxic cyanide (CN(-) ) by a post-synthetically altered metal-organic framework (MOF) has been achieved. A post-synthetic modification was employed in the MOF to incorporate the specific recognition site with the CN(-) ion over all other anions, such as Cl(-) , Br(-) , and SCN(-) . The aqueous-phase sensing and very low detection limit, the essential prerequisites for an effective sensory material, have been fulfilled by the MOF. Moreover, the present detection level meets the standard set by the World Health Organization (WHO) for the permissible limit of cyanide concentration in drinking water. The utilization of MOF-based materials as the fluorometric probes for selective and sensitive detection of CN(-) ions has not been explored till now.
authors.affiliation: Department of Chemistry, Indian Institute of Science Education and Research (IISER) Pune, Dr. Homi Bhabha Road, Pashan, Pune-, 411008, India), Fax.
authors.forename: Avishek
authors.initials: A
authors.lastname: Karmakar
authors.affiliation: Department of Chemistry, Indian Institute of Science Education and Research (IISER) Pune, Dr. Homi Bhabha Road, Pashan, Pune-, 411008, India), Fax.
authors.forename: Naveen
authors.initials: N
authors.lastname: Kumar
authors.affiliation: Department of Chemistry, Indian Institute of Science Education and Research (IISER) Pune, Dr. Homi Bhabha Road, Pashan, Pune-, 411008, India), Fax.
authors.forename: Partha
authors.initials: P
authors.lastname: Samanta
authors.affiliation: Department of Chemistry, Indian Institute of Science Education and Research (IISER) Pune, Dr. Homi Bhabha Road, Pashan, Pune-, 411008, India), Fax.
authors.forename: Aamod V
authors.initials: AV
authors.lastname: Desai
authors.affiliation: Department of Chemistry, Indian Institute of Science Education and Research (IISER) Pune, Dr. Homi Bhabha Road, Pashan, Pune-, 411008, India), Fax. sghosh@iiserpune.ac.in.
authors.forename: Sujit K
authors.initials: SK
authors.lastname: Ghosh
mesh_terms: D000838:Anions / Q000737:chemistry*; D003486:Cyanides / Q000737:chemistry* / Q000633:toxicity*; D005470:Fluorometry; D057230:Limit of Detection; D009942:Organometallic Compounds / Q000138:chemical synthesis / Q000737:chemistry*; D013050:Spectrometry, Fluorescence; D014867:Water / Q000737:chemistry*
chemical_list: D000838:Anions; D003486:Cyanides; D009942:Organometallic Compounds; D014867:Water
keywords: aqueous-phase detection; cyanide; fluorescence; metal-organic frameworks