A wireless biosensing chip for DNA detection

A wireless sensing chip for biological assay is fully operational in a sample solution. The IC monolithically integrates a biological sensor, an RF communication circuit, and a coupling coil on a 2.5/spl times/2.5 mm/sup 2/ chip in 0.35 /spl mu/m CMOS technology. Detection of single nucleotide polymorphism (SNP) in DNA is successfully carried out by the chip.