Digital droplet ELOHA for nucleic acid molecule counting and analysis

Weihua Guan, Liben Chen, Tushar Rane, Aniruddha Kaushik, Jeff Tza Huei Wang

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

Abstract

We present a droplet digital Enzyme-Linked Oligonucleotide Hybridization Assay (droplet digital ELOHA) for reference-free absolute quantification of nucleic acids. Droplet digital ELOHA is able to accurately quantify as few as several hundred copies of nucleic acids in a large, mL-sized sample volume (equivalent to 1 aM or lower) without molecular replication. Droplet digital ELOHA provides a linear response to the number of copies present in a sample to allow for detecting a small fold change unattainable by real time quantitative PCR. Its capability to cope with a large sample volume benefits from the use of magnetic beads to streamline capturing of nucleic acids from the sample and subsequent surface hybridization reactions in droplets. Droplet digital ELOHA is particularly attractive for RNA quantification since it does not require reverse transcription. The absolute quantification ability of droplet digital ELOHA is demonstrated with the analysis of clinical Neisseria Gonorrhoeae 16S rRNA to show its potential diagnostic value.

Original languageEnglish (US)
Title of host publication2015 Transducers - 2015 18th International Conference on Solid-State Sensors, Actuators and Microsystems, TRANSDUCERS 2015
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages460-463
Number of pages4
ISBN (Electronic)9781479989553
DOIs
StatePublished - Aug 5 2015
Event18th International Conference on Solid-State Sensors, Actuators and Microsystems, TRANSDUCERS 2015 - Anchorage, United States
Duration: Jun 21 2015Jun 25 2015

Publication series

Name2015 Transducers - 2015 18th International Conference on Solid-State Sensors, Actuators and Microsystems, TRANSDUCERS 2015

Other

Other18th International Conference on Solid-State Sensors, Actuators and Microsystems, TRANSDUCERS 2015
Country/TerritoryUnited States
CityAnchorage
Period6/21/156/25/15

Keywords

  • digital assay
  • Droplet microfluidics
  • single molecule counting

ASJC Scopus subject areas

  • Instrumentation
  • Electrical and Electronic Engineering

Fingerprint

Dive into the research topics of 'Digital droplet ELOHA for nucleic acid molecule counting and analysis'. Together they form a unique fingerprint.

Cite this