
420 Nanosensors: Physical, Chemical, and Biological
are conducted in turbid, light-impermeable media such as blood, cell sus-
pensions, culture media, lipid emulsions, and even whole tissue. (iii)
Immobilization of the sample on a at surface, for example, microarray glass
slides, is not necessary. Hence, faster hybridization and binding kinetics are
observed. (iv) The assay provides the exibility to detect various biomolecu-
lar interactions like mRNA, protein, and enzymatic activity simultaneously.
It is accomplished in a high-throughput format by using MRI and NMR.
(v) At the low iron concentrations (<20 g Fe per mL) used in the ...