ArticleInternational journal of analytical chemistry2011
Optimization of molecularly imprinted polymer method for rapid screening of 17β-estradiol in water by fluorescence quenching.
Article in International journal of analytical chemistry, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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Who cites it
3 citing papers in PubMed, 10 citations in OpenAlex.
- Review
- Molecularly imprinted polymers in toxicology: a literature survey for the last 5 years.Environmental science and pollution research international · 2021Review
- Asymmetric split H-shape nanoantennas for molecular sensing.Biomedical optics express · 2017Article
Corrections and comments
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Authors and funding
2 authors at 1 institution in 1 country.
Funding
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Abstract
A new method was optimized for rapid screening of 17β-estradiol (E2) in water under 10 min. Molecularly imprinted polymer (MIP) particles (325 ± 25 nm) were added in a water sample at pH 5.5 and 20°C to form a suspension. Fluorescence emission from E2 nonspecifically bound onto the MIP particles was first quenched by large gold nanoparticles (43 ± 5 nm). The Stern-Volmer plot was linear, with dynamic quenching constants (K(sv)) of 2.9 ×10(4) M(-1). Fluorescence emission from E2 specifically bound inside the MIP particles was next quenched by small nitrite anions that easily penetrated the imprinted cavities. The Stern-Volmer plot became nonlinear, with K(sv) = 2.1 × 10(2) M(-1) and static quenching constant (V) below 1.0 M(-1). The difference between these two emission intensities varied as the initial E2 concentration in water, generating a Scatchard calibration curve with R(2) > 0.97 from 0.1 to 10 ppb.
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Registered trials
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