Fabrication of reusable sensor for detection of Cu2+ in an aqueous solution using a self-assembled monolayer with surface plasmon resonance spectroscopy
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Kang, T
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Seoul Natl Univ, Sch Chem & Biol Engn, Seoul, South KoreaSeoul Natl Univ, Sch Chem & Biol Engn, Seoul, South Korea
Kang, T
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Hong, SR
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Seoul Natl Univ, Sch Chem & Biol Engn, Seoul, South KoreaSeoul Natl Univ, Sch Chem & Biol Engn, Seoul, South Korea
Hong, SR
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Moon, J
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Seoul Natl Univ, Sch Chem & Biol Engn, Seoul, South KoreaSeoul Natl Univ, Sch Chem & Biol Engn, Seoul, South Korea
Moon, J
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Oh, S
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Seoul Natl Univ, Sch Chem & Biol Engn, Seoul, South KoreaSeoul Natl Univ, Sch Chem & Biol Engn, Seoul, South Korea
Oh, S
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Yi, J
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Seoul Natl Univ, Sch Chem & Biol Engn, Seoul, South KoreaSeoul Natl Univ, Sch Chem & Biol Engn, Seoul, South Korea
Yi, J
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[1] Seoul Natl Univ, Sch Chem & Biol Engn, Seoul, South Korea
The proposed procedure for recycling the sensor surface consists of (1) the self-assembly of 2-aminoethanethiol hydrochloride (AET) on the Au substrate, (2) the neutralization of zwitterion-like species, -NH3+Cl- to -NH2 by treatment with a NaOH solution (pH 11), (3) the detection of Cu2+ on the NaOH-treated AET-Au substrate, and finally (4) regeneration of the sensor surface from [-NH2 -> Cu2+] to [-NH3+Cl-] by treatment with 1 M HCl.