ArticleLab on a chip2017
Integrated microHall magnetometer to measure the magnetic properties of nanoparticles.
Article in Lab on a chip, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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Who cites it
2 citing papers in PubMed.
- Microfluidic Synthesis, Control, and Sensing of Magnetic Nanoparticles: A Review.Micromachines · 2021Review
- Robust Microfabrication of Highly Parallelized Three-Dimensional Microfluidics on Silicon.Scientific reports · 2019Article
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Authors and funding
14 authors.
Funding
Abstract
Magnetic nanoparticles (MNPs) are widely used in biomedical and clinical applications, including medical imaging, therapeutics, and biological sample processing. Rapid characterization of MNPs, notably their magnetic moments, should facilitate optimization of particle synthesis and accelerate assay development. Here, we report a compact and low-cost magnetometer for fast, on-site MNP characterization. Termed integrated microHall magnetometer (iHM), our device was fabricated using standard semiconductor processes: an array of Hall sensors, transistor switches, and amplifiers were integrated into a single chip, thus improving the detection sensitivity and facilitating chip operation. By applying the iHM, we demonstrate versatile magnetic assays. We measured the magnetic susceptibility and moments of MNPs using small sample amounts (∼10 pL), identified different MNP compositions in mixtures, and detected MNP-labeled single cells.
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Registered trials
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