Nanoparticle Separation through Deterministic Lateral Displacement Arrays in Poly(dimethylsiloxane)

Naotomo Tottori, Yasuhiko Muramoto, Hiraku Sakai, Takasi Nisisako

Research output: Contribution to journalArticlepeer-review

Abstract

We present size-based separation of nanopartides using deterministic lateral displacement (DLD) arrays in poly(dimethylsiloxane) (PDMS). Unlike conventional dry-etched silicon DLD devices for nanoparticle separation, our proposed devices are fabricated from PDMS by standard soft lithography. Using a DLD device having a critical diameter Dc of 0.7 pm, we could separate fluorescent polystyrene particles of diameters 1 and 0.5 pm. In addition, we could demonstrate solution exchange for 0.5-pm beads by using a DLD device having a smaller Dc of 0.3 pm.

Original languageEnglish
Pages (from-to)414-421
Number of pages8
JournalJOURNAL OF CHEMICAL ENGINEERING OF JAPAN
Volume53
Issue number8
DOIs
Publication statusPublished - Aug 20 2020
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Chemical Engineering(all)

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