A fully integrated CMOS fluorescence biosensor with on-chip nanophotonic filter

Lingyu Hong, Simon McManus, Haw Yang, Kaushik Sengupta

Research output: Chapter in Book/Report/Conference proceedingConference contribution

17 Scopus citations

Abstract

Affinity-based fluorescence sensing has been one of the key enabling technologies in biomolecular sensing, used for detection of proteins, DNAs, toxins, bacteria, etc, and remains one of the most sensitive, specific, robust, and widely used diagnostics methodology [1-4]. In absence of high-performance integrated optical filters, miniaturization of a fluorescence sensing system in CMOS has relied on time-resolved techniques with synchronized sources or externally grown optical filters and/or collimators. This paper presents a nanophotonic-electronic co-design approach towards fully-integrated fluorescence biosensor with on-chip copper-interconnect based nanoplasmonic filters. The filters demonstrate a measured extinction ratio of greater than 51dB in the excitation/emission bands for a class of quantum-dot based fluorescence tags. Integrated with these filters, the sensor platform is a correlated double sampling architecture which achieves femtowatt photon sensitivity. Detection sensitivity of 47 zeptomoles of quantum-dots was experimentally demonstrated, making the chip a low-cost, fully integrated, high-performance, and fully scalable biosensor for point-of-care applications.

Original languageEnglish (US)
Title of host publication2015 Symposium on VLSI Circuits, VLSI Circuits 2015
PublisherInstitute of Electrical and Electronics Engineers Inc.
PagesC206-C207
ISBN (Electronic)9784863485020
DOIs
StatePublished - Aug 31 2015
Event29th Annual Symposium on VLSI Circuits, VLSI Circuits 2015 - Kyoto, Japan
Duration: Jun 17 2015Jun 19 2015

Publication series

NameIEEE Symposium on VLSI Circuits, Digest of Technical Papers
Volume2015-August

Other

Other29th Annual Symposium on VLSI Circuits, VLSI Circuits 2015
CountryJapan
CityKyoto
Period6/17/156/19/15

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering

Fingerprint Dive into the research topics of 'A fully integrated CMOS fluorescence biosensor with on-chip nanophotonic filter'. Together they form a unique fingerprint.

  • Cite this

    Hong, L., McManus, S., Yang, H., & Sengupta, K. (2015). A fully integrated CMOS fluorescence biosensor with on-chip nanophotonic filter. In 2015 Symposium on VLSI Circuits, VLSI Circuits 2015 (pp. C206-C207). [7231260] (IEEE Symposium on VLSI Circuits, Digest of Technical Papers; Vol. 2015-August). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/VLSIC.2015.7231260