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A novel multiplexed sensing scheme based on Brownian relaxation for biomolecules tagged to magnetic nanoparticles (MNPs) in liquid environment is proposed. Feasibility of the technique has been verified by the experiments with the mixture of differently sized magnetic nanoparticles using a newly developed room temperature, miniaturized AC magnetic susceptometer. The AC magnetic susceptibility measurements...
We demonstrate a miniaturized AC magnetic susceptometer to detect biomolecules tagged to magnetic nanoparticles (MNPs). The proposed compact susceptometer measures the magnetic relaxation spectrum of biomolecules tagged with MNPs in an aqueous suspension. The relaxation time corresponds to the Brownian relaxation time and depends on the hydrodynamic size of the MNPs. Conventional susceptometers are...
Tissue constructs for cartilage with native mechanical properties have not been described to date. To address this need the bacterial cellulose (BC) secreted by Gluconacetobacter xylinus (=Acetobacter xylinum) was explored as a novel scaffold material due to its unusual material properties and degradability. Native and chemically modified BC materials were evaluated using bovine chondrocytes. The...
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