Cited by 351Microfluidic and Capillary Electrophoresis ApplicationsInnovative Microfluidic and Catalytic Techniques InnovationElectrowetting and Microfluidic Technologies

SlipChip

Open access
Du, Wenbin, Li, Liang, Nichols, Kevin P., Ismagilov, Rustem F.·2009·Lab on a Chip

Abstract

The SlipChip is a microfluidic device designed to perform multiplexed microfluidic reactions without pumps or valves. The device has two plates in close contact. The bottom plate contains wells preloaded with many reagents; in this paper plates with 48 reagents were used. These wells are covered by the top plate that acts as a lid for the wells with reagents. The device also has a fluidic path, composed of ducts in the bottom plate and wells in the top plate, which is connected only when the top and bottom plate are aligned in a specific configuration. Sample can be added into the fluidic path, filling both wells and ducts. Then, the top plate is "slipped", or moved, relative to the bottom plate so the complementary patterns of wells in both plates overlap, exposing the sample-containing wells of the top plate to the reagent-containing wells of the bottom plate, and enabling diffusion and reactions. Between the two plates, a lubricating layer of fluorocarbon was used to facilitate relative motion of the plates. This paper implements this approach on a nanoliter scale using devices fabricated in glass. Stability of preloaded solutions, control of loading, and lack of cross-contamination were tested using fluorescent dyes. Functionality of the device was illustrated via crystallization of a model membrane protein. Fabrication of this device is simple and does not require a bonding step. This device requires no pumps or valves and is applicable to resource-poor settings. Overall, this device should be valuable for multiplexed applications that require exposing one sample to many reagents in small volumes. One may think of the SlipChip as an easy-to-use analogue of a preloaded multi-well plate, or a preloaded liquid-phase microarray.

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Crossref · 10.1039/b908978k

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  • SlipChip is especially appropriate for integrated DNA-based data storage because all microdroplets can be moved simultaneously by sliding, so no valves, pumps, or tubes are required.

    “As a microfluidic device for handling a large array of microdroplets, SlipChip is a platform that is especially appropriate for the development of an integrated DNA-based data storage system. All the microdroplets can be moved simultaneously on a SlipChip by simply sliding the device, so no valves, pumps, or tubes are required (54–56).”

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Research works printed but not linked: 1

  1. [38]Tokeshi M Kitamori T Trojanowicz M ch. 6 Flow Analysis in Microfluidic Devices Wiley VCH 149 166

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Authors
Du, W., Li, L., Nichols, K. P., & Ismagilov, R. F.
Affiliations
University of Chicago (US)
Corresponding author
Ismagilov, Rustem F.
Venue
Lab on a Chip
Published
2009
Volume
9
Issue
16
Pages
2286
ISSN
  • 1473-0189 (ISSN-L)
  • 1473-0197
OpenAlex
W4249742884
Cited by
351
References
48
Citations by year
2026: 11 · 2025: 17 · 2024: 14 · 2023: 21 · 2022: 19 · 2021: 18 · 2020: 22 · 2019: 25 · 2018: 23 · 2017: 20 · 2016: 34 · 2015: 24 · 2014: 26 · 2013: 29 · 2012: 14
FWCI
9.63
Type
journal article
Language
en
Open access
Locations
  • Lab on a Chip (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
  • CaltechAUTHORS (California Institute of Technology) (submittedVersion)
Funders
  • National Institutes of Health (DP1OD003584, GM074961)
  • National Institute of General Medical Sciences (R01GM075827, U54GM074961)
Topics
  • Physical Sciences › Engineering › Biomedical Engineering › Microfluidic and Capillary Electrophoresis Applications
  • Physical Sciences › Engineering › Biomedical Engineering › Innovative Microfluidic and Catalytic Techniques Innovation
  • Physical Sciences › Engineering › Electrical and Electronic Engineering › Electrowetting and Microfluidic Technologies
Keywords
SlipChip, microfluidics, glass microfluidics, membrane protein crystallization, resource-limited settings
MeSH terms
Bacterial Proteins, Food Coloring Agents, Indicators and Reagents, Hyphomicrobiaceae, Photosynthetic Reaction Center Complex Proteins, Microfluidic Analytical Techniques

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