Polydiacetylene-embedded microbeads for colorimetric and volumetric sensing of hydrocarbons

Jaesung Hong, Dong Hoon Park, Sunghoon Baek, Simon Song, Chan Woo Lee, Jong-Man Kim

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

Rational design of a hydrocarbon sensor that enables visual differentiation of saturated aliphatic hydrocarbons (SAHCs) is very difficult owing to the lack of useful functional groups that can interact with the sensor system. Here, we report a microbead embedded with polydiacetylene that undergoes faster swelling and faster blue-to-red color change in response to the hydrocarbons of shorter alkyl chains. Accordingly, visual differentiation among n-pentane, n-heptane, n-nonane, and n-undecane was readily achieved. By taking advantage of the collective effect, construction of a sensor system with amplified response was possible. Combination of microfluidic technology (for bead preparation), PDMS (swellable polymeric matrix), and polydiacetylene (colorimetric material) was key to enabling this unique hydrocarbon sensor.

Original languageEnglish
Pages (from-to)8339-8343
Number of pages5
JournalACS Applied Materials and Interfaces
Volume7
Issue number15
DOIs
StatePublished - 2015 Apr 22

Fingerprint

Hydrocarbons
Sensors
Heptane
Microfluidics
Functional groups
Swelling
Color
polydiacetylene

Keywords

  • colorimetric
  • hydrocarbon
  • microfluidic
  • polydiacetylene
  • polydimethylsiloxane (PDMS)
  • sensor

Cite this

Hong, Jaesung ; Park, Dong Hoon ; Baek, Sunghoon ; Song, Simon ; Lee, Chan Woo ; Kim, Jong-Man. / Polydiacetylene-embedded microbeads for colorimetric and volumetric sensing of hydrocarbons. In: ACS Applied Materials and Interfaces. 2015 ; Vol. 7, No. 15. pp. 8339-8343.
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Polydiacetylene-embedded microbeads for colorimetric and volumetric sensing of hydrocarbons. / Hong, Jaesung; Park, Dong Hoon; Baek, Sunghoon; Song, Simon; Lee, Chan Woo; Kim, Jong-Man.

In: ACS Applied Materials and Interfaces, Vol. 7, No. 15, 22.04.2015, p. 8339-8343.

Research output: Contribution to journalArticle

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AU - Kim, Jong-Man

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