Varactor tuned ring resonatormicrowave oscillator

Lu, Shih-Lin; Ferendeci, Altan M.

doi:10.1049/el:19960058

Cited by 6 publications

(1 citation statement)

References 4 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Originally, they were used as a measurement tool for the characterization of the transmission properties of microstrip lines (Troughton 1969). Previously, they have been widely used as external probes for dielectric material properties (Bernard and Gautray 1991), moisture sensors (Abegaonkar et al 1999, Pawlak et al 2002 and active or passive filter elements in microwave systems (Lu and Ferendeci 1996). At THz frequencies, however, they have not been applied as sensor elements so far.…”

Section: Introductionmentioning

confidence: 99%

A functionalized THz sensor for marker-free DNA analysis

Nagel¹,

Richter²,

Bolívar³

et al. 2003

Phys. Med. Biol.

133

View full text Add to dashboard Cite

We report on a novel resonant THz sensor for the label-free analysis of DNA molecules. The sensor allows the direct detection of DNA-probe molecules at functionalized electrodes via hybridization. Subsequent time resolved photoconductive sampling of the THz transmission identifies the binding state between probe and target DNA. Integrating neighbouring sensors on a chip, this technique can be extended to a parallel analysis of multiple DNA sequences. A clearly readable sensor response is obtained with less then 40 fmol of 20-mer single-stranded DNA molecules, indicating at least a sevenfold sensitivity increase compared to previous approaches.

show abstract