Publication: The effect of bovine myoglobin on ultraviolet fluorescence of gadolinium-doped zinc oxide films
Дата
2019
Авторы
Hayrullina, I. A.
Nagovitsyn, I. А.
Sheshko, T. F.
Cherednichenko, A. G.
Boruleva, E. A.
Chudinova, G. K.
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© 2019 Bulgarian Academy of Sciences, Union of Chemists in Bulgaria.ZnO thin films doped with 0.1 mass% of Gd have been firstly developed with the aim of using as sensitive surfaces for bioanalysis with fluorescent registration. Gd-doped films were prepared by sol-gel and spin coating techniques on monocrystalline silicon supports. Adding Gd3+ ions resulted in a red shift maximum (em = 380 nm) band of ZnO fluorescence by 8-10 nm. Bovine myoglobin (MB) at neutral pH =7 (isoelectric point) was deposited from solutions with concentrations of MB in the interval from 10-6 to 10-12 M on Gd-doped ZnO surfaces by spin coating techniques. This led to 5-8 % fluorescence quenching for 10-6 – 10-10 М MB concentrations and 20 % fluorescence enhancing for the 10-12 M one.
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The effect of bovine myoglobin on ultraviolet fluorescence of gadolinium-doped zinc oxide films / Hayrullina, I.A. [et al.] // Bulgarian Chemical Communications. - 2019. - 51. - P. 135-137