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Rapid Homogeneous Detection of Biological Assays Using Magnetic Modulation Biosensing System
Published on: June 13, 2010
MNP@SU-101: lowering the limit of detection for SO2 sensing
Isaí U Alva-Sandoval1, Catalina Biglione2, Marco L Martínez1,3
1Laboratorio de Fisicoquímica y Reactividad de Superficies (LaFReS), Instituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México, Circuito Exterior s/n, CU, Coyoacán, 04510 Ciudad de México, México. diego.solis@unam.mx.
Abstract:
We report an MNP@SU-101 nanocomposite for room-temperature SO2 detection. Remarkably, magnetic nanoparticle (MNP) insertion promotes exceptional sensitivity, lowering the limit of detection from 209.7 to 5.6 ppm. The nanocomposite exhibited remarkable robustness toward SO2, and a strong synergy between SU-101 and the nanoparticles during detection was observed.
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