Micropore device for identification of 4-bit hydrogel barcode

Jihun Ryu, Hyeon Ung Kim, Chang Woo Song, Sehyun Shin, Ki Wan Bong, Chang Soo Han

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)


We report the precise decoding of a shape-modulated hydrogel barcode particle using a micropore fluidic device. Using an electrical simulation, we deduced the optimal pore geometry that yields the maximal sensing signal. We fabricated hydrogel particles with different dimensions and prepared the micropore device along with a fluidic cell and a patch clamp. Accordingly, we experimentally determined the most appropriate shape of the hydrogel barcode particle that allows efficient differentiation between a 0 code and a 1 code. Thus, we successfully decoded 4-bit hydrogel barcode particles with high speed and high accuracy.

Original languageEnglish
Article number127622
JournalSensors and Actuators, B: Chemical
Publication statusPublished - 2020 Mar 15

Bibliographical note

Funding Information:
This work was supported by the Engineering Research Center of Excellence Program ( NRF-2016R1A5A1010148 ) and the Basic Science Research Program through the National Research Foundation of Korea (NRF) (grant numbers 2018R1D1A1B07046577 and 2018R1A2A1A05023556 ).

Publisher Copyright:
© 2019 Elsevier B.V.


  • Hydrogel barcode particle
  • Low-aspect-ratio micropore sensor
  • Multiplexed detection

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Instrumentation
  • Condensed Matter Physics
  • Surfaces, Coatings and Films
  • Metals and Alloys
  • Electrical and Electronic Engineering
  • Materials Chemistry


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