title: A highly sensitive gold nanoparticle-based colorimetric probe for pyrophosphate using a competition assay approach.
abstract: In this study, a mixture of [Zn(2)(1,3-bis[bis(2-pyridylmethyl)aminomethyl]benzene)](4+) ([Zn(2)(BBPAB)](4+)) and 11-mercaptoundecylphosphoric acid functionalized gold nanoparticles (Phos-AuNPs) is shown to be a highly sensitive colorimetric probe that can easily detect pyrophosphate (PPi) at less than 200 nM with the naked eye.
authors.affiliation: Department of Chemistry, Chung-Ang University, Seoul 156-756, Republic of Korea.
authors.forename: Sudeok
authors.initials: S
authors.lastname: Kim
authors.forename: Min Sik
authors.initials: MS
authors.lastname: Eom
authors.forename: Seung Kyung
authors.initials: SK
authors.lastname: Kim
authors.forename: Seong Hyeok
authors.initials: SH
authors.lastname: Seo
authors.forename: Min Su
authors.initials: MS
authors.lastname: Han
mesh_terms: D003124:Colorimetry; D056831:Coordination Complexes / Q000737:chemistry; D011756:Diphosphates / Q000032:analysis; D006046:Gold / Q000737:chemistry*; D053768:Metal Nanoparticles / Q000737:chemistry*; D015032:Zinc / Q000737:chemistry
chemical_list: D056831:Coordination Complexes; D011756:Diphosphates; D006046:Gold; D015032:Zinc