title: Sensing during in situ growth of Mn-doped ZnS QDs: a phosphorescent sensor for detection of H2S in biological samples.
abstract: Monitoring the in situ growth of Mn-doped ZnS quantum dots is shown to be a route to selectively detect H2S, an important endogenously produced signalling molecule. The use of Mn(2+) as a dopant resulted in orange phosphorescence, making it possible to avoid the background fluorescence from biological surroundings that can occur at other wavelengths. The choice of ZnS QDs as the host material ensured selectivity, since only sulfide can precipitate Zn(2+) and Mn(2+) from aqueous solution.
authors.affiliation: Analytical & Testing Center, Key Lab of Green Chemistry and Technology of MOE and College of Chemistry, Sichuan University, Chengdu, Sichuan 610064 (P.R. China), Fax: (+86) 28-8547-0818.
authors.forename: Peng
authors.initials: P
authors.lastname: Wu
authors.forename: Jinyi
authors.initials: J
authors.lastname: Zhang
authors.forename: Shanlin
authors.initials: S
authors.lastname: Wang
authors.forename: Airu
authors.initials: A
authors.lastname: Zhu
authors.forename: Xiandeng
authors.initials: X
authors.lastname: Hou
mesh_terms: D000818:Animals; D002417:Cattle; D006862:Hydrogen Sulfide / Q000032:analysis / Q000097:blood*; D008163:Luminescent Measurements / Q000379:methods*; D008345:Manganese / Q000737:chemistry*; D045663:Quantum Dots / Q000737:chemistry*; D012680:Sensitivity and Specificity; D013440:Sulfides / Q000737:chemistry*; D017967:Zinc Compounds / Q000737:chemistry*
chemical_list: D013440:Sulfides; D017967:Zinc Compounds; D008345:Manganese; C031238:zinc sulfide; D006862:Hydrogen Sulfide
keywords: hydrogen sulfide; in situ growth; manganese; phosphorescent; quantum dots; zinc sulfide