Student or educator? Sign up with your school email and get 6 months of Pro free.
Cited by 4,010

The DOI matches its Crossref record.

Monolithic Microfabricated Valves and Pumps by Multilayer Soft Lithography

Unger, Marc A., Chou, Hou-Pu, Thorsen, Todd, Scherer, Axel, Quake, Stephen R.·2000·Science

Abstract

Soft lithography is an alternative to silicon-based micromachining that uses replica molding of nontraditional elastomeric materials to fabricate stamps and microfluidic channels. We describe here an extension to the soft lithography paradigm, multilayer soft lithography, with which devices consisting of multiple layers may be fabricated from soft materials. We used this technique to build active microfluidic systems containing on-off valves, switching valves, and pumps entirely out of elastomer. The softness of these materials allows the device areas to be reduced by more than two orders of magnitude compared with silicon-based devices. The other advantages of soft lithography, such as rapid prototyping, ease of fabrication, and biocompatibility, are retained.

Overview

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1126/science.288.5463.113

Cites

Statistics

Verification

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Citations

Cited by

See all 4,010

Metadata

Authors
Unger, M. A., Chou, H.-P., Thorsen, T., Scherer, A., & Quake, S. R.
Venue
Science
Published
2000-04-07
Volume
288
Issue
5463
Pages
113-116
ISSN
  • 0036-8075 (ISSN-L)
  • 1095-9203
OpenAlex
W2071311642
Cited by
4,010
References
0
FWCI
55.91
Type
journal article
Language
en
Open access
closed

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review

How to cite

Cite CoChat for the checks on this page, and the paper for its own findings.

This page
CoChat. (2026). Citation check: Monolithic Microfabricated Valves and Pumps by Multilayer Soft Lithography. https://app.cochat.ai/papers/10.1126/science.288.5463.113
The paper
Unger, M. A., Chou, H.-P., Thorsen, T., Scherer, A., & Quake, S. R. (2000). Monolithic Microfabricated Valves and Pumps by Multilayer Soft Lithography. Science. https://doi.org/10.1126/science.288.5463.113

Data sources

Bibliographic data: Semantic Scholar, OpenAlex, Crossref.

Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.