In this study, we fabricated imprinted ZrO2 inverse opal crystals for detection of bisphenol A with high sensitivity and quick response. In addition, lattice-parameter dependent sensitivity was examined. The imprinted ZrO2 powders exhibited a high adsorption capacity of 4.66 mg/g and a high imprinted factor of 24. The imprinted photonic crystals blue-shifted the diffraction light after binding with bisphenol A. The shift extent remarkable increased from 3.2 to 8.0 nm in the 50 ppm solution when the lattice parameter increased from 160 to 290 nm. The adsorption equilibrium was achieved within 4 min, and a wide linear range of 1.0-60 ppm was obtained. The high chemical and mechanical stability and low non-specific adsorption for organic compounds allow the inorganic imprinted photonic crystals exhibiting long durability and high sensitivity for sensing organic targets.

Molecularly imprinted ZrO<sub>2</sub> photonic-crystal sensors exhibiting high sensitivity and quick response

243rd National Meeting (2012)

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Molecularly imprinted ZrO2 photonic-crystal sensors exhibiting high sensitivity and quick response

Molecularly imprinted ZrO₂ photonic-crystal sensors exhibiting high sensitivity and quick response