Stereomask lithography for multi-protein patterning

Siwei Zhao, Arnold Chen, Alexander Revzin, Tingrui Pan

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

The advances of biologically-friendly micropatterning technologies have benefited many areas of biological and medical research, including quantitative biochemical assay, point-of-care devices, biosensing and regenerative medicine. Conventional micropatterning techniques, for example, photolithography and soft lithography, have seen encouraging adaptation to creating biological micropatterns in the last decades. However, they still have not completely addressed the major needs of constructing multi-object biological microarrays with single-cell resolution without requiring cleanroom access. In this chapter, we present a novel versatile biological lithography technique to achieve integrated multi-object patterning with high feature resolution and high adaptability to various biomaterials, referred to as stereomask lithography (SML). A novel three-dimensional stereomask has been developed for successive patterning of multiple objects. The stereomask consists of both patterned through holes, which layout new micropatterns and non-through recesses, which protect pre-existing features on the substrate. Furthermore, high-precision reversible alignment among multiple bio-objects is achieved by adopting a peg-in-hole design between the substrate and stereomasks. As demonstration, we have successfully used the SML technique to construct complex biological microenvironment with various bio-functional components at single-cell resolution.

Original languageEnglish (US)
Pages (from-to)175-192
Number of pages18
JournalMethods in Cell Biology
Volume119
DOIs
StatePublished - Jan 23 2014
Externally publishedYes

Fingerprint

Point-of-Care Systems
Regenerative Medicine
Biocompatible Materials
Biomedical Research
Proteins
Technology
Equipment and Supplies

Keywords

  • Alignment
  • Cells
  • Lithography
  • Micropatterning
  • Multi-object
  • Nano beads
  • Protein
  • Stereomask

ASJC Scopus subject areas

  • Cell Biology

Cite this

Stereomask lithography for multi-protein patterning. / Zhao, Siwei; Chen, Arnold; Revzin, Alexander; Pan, Tingrui.

In: Methods in Cell Biology, Vol. 119, 23.01.2014, p. 175-192.

Research output: Contribution to journalArticle

Zhao, Siwei ; Chen, Arnold ; Revzin, Alexander ; Pan, Tingrui. / Stereomask lithography for multi-protein patterning. In: Methods in Cell Biology. 2014 ; Vol. 119. pp. 175-192.
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