Evidence map›Paper›PMID 35056214›Full record

ArticleMicromachines2021

Rapid Prototyping of Organ-on-a-Chip Devices Using Maskless Photolithography.

Dhanesh G Kasi, Mees N S de Graaf, Paul A Motreuil-Ragot, Jean-Phillipe M S Frimat, Michel D Ferrari, Pasqualina M Sarro, Massimo Mastrangeli, Arn M J M van den Maagdenberg, Christine L Mummery, Valeria V Orlova

Abstract read
In one paragraph

Article in Micromachines, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

14 citing papers in PubMed.

  1. Article
  2. Review
  3. Review
  4. Article
  5. Advances in Microfluidic Cochlea-On-A-Chip.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2025
    Review
  6. Review
  7. Review
  8. Review
  9. Article
  10. Article
  11. Review
  12. Microfluidic Organ-on-A-chip: A Guide to Biomaterial Choice and Fabrication.International journal of molecular sciences · 2023
    Review
  13. Review
  14. Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

10 authors.

Dhanesh G KasiDepartment of Anatomy and Embryology, Leiden University Medical Center, 2333 ZA Leiden, The Netherlands.
Mees N S de GraafDepartment of Anatomy and Embryology, Leiden University Medical Center, 2333 ZA Leiden, The Netherlands.
Paul A Motreuil-RagotDepartment of Microelectronics, Delft University of Technology, 2628 CD Delft, The Netherlands.
Jean-Phillipe M S FrimatDepartment of Human Genetics, Leiden University Medical Center, 2333 ZA Leiden, The Netherlands.
Michel D FerrariDepartment of Neurology, Leiden University Medical Center, 2333 ZA Leiden, The Netherlands.
Pasqualina M SarroDepartment of Microelectronics, Delft University of Technology, 2628 CD Delft, The Netherlands.
Massimo MastrangeliDepartment of Microelectronics, Delft University of Technology, 2628 CD Delft, The Netherlands.ORCID 0000-0003-3265-5768
Arn M J M van den MaagdenbergDepartment of Human Genetics, Leiden University Medical Center, 2333 ZA Leiden, The Netherlands.ORCID 0000-0002-9310-5535
Christine L MummeryDepartment of Anatomy and Embryology, Leiden University Medical Center, 2333 ZA Leiden, The Netherlands.
Valeria V OrlovaDepartment of Anatomy and Embryology, Leiden University Medical Center, 2333 ZA Leiden, The Netherlands.ORCID 0000-0002-1169-2802

Funding

Dutch Research Council 024.003.001
6 · The paper itself

Abstract

Organ-on-a-chip (OoC) and microfluidic devices are conventionally produced using microfabrication procedures that require cleanrooms, silicon wafers, and photomasks. The prototyping stage often requires multiple iterations of design steps. A simplified prototyping process could therefore offer major advantages. Here, we describe a rapid and cleanroom-free microfabrication method using maskless photolithography. The approach utilizes a commercial digital micromirror device (DMD)-based setup using 375 nm UV light for backside exposure of an epoxy-based negative photoresist (SU-8) on glass coverslips. We show that microstructures of various geometries and dimensions, microgrooves, and microchannels of different heights can be fabricated. New SU-8 molds and soft lithography-based polydimethylsiloxane (PDMS) chips can thus be produced within hours. We further show that backside UV exposure and grayscale photolithography allow structures of different heights or structures with height gradients to be developed using a single-step fabrication process. Using this approach: (1) digital photomasks can be designed, projected, and quickly adjusted if needed; and (2) SU-8 molds can be fabricated without cleanroom availability, which in turn (3) reduces microfabrication time and costs and (4) expedites prototyping of new OoC devices.

Indexed as

backside exposuredigital micromirror device (DMD)grayscale photolithographylow-cost microfabricationmaskless photolithographyorgan-on-a-chip (OoC)photoresistpolydimethylsiloxane (PDMS)PRIMOSU-8

Identifiers

PMID35056214
PMCPMC8778126

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.