Pretreated butterfly wings for tuning the selective vapor sensing

Gábor Piszter, K. Kertész, Z. Bálint, L. Bíró

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

Photonic nanoarchitectures occurring in the scales of Blue butterflies are responsible for their vivid blue wing coloration. These nanoarchitectures are quasi-ordered nanocomposites which are constituted from a chitin matrix with embedded air holes. Therefore, they can act as chemically selective sensors due to their color changes when mixing volatile vapors in the surrounding atmosphere which condensate into the nanoarchitecture through capillary condensation. Using a home-built vapor-mixing setup, the spectral changes caused by the different air + vapor mixtures were efficiently characterized. It was found that the spectral shift is vapor-specific and proportional with the vapor concentration. We showed that the conformal modification of the scale surface by atomic layer deposition and by ethanol pretreatment can significantly alter the optical response and chemical selectivity, which points the way to the efficient production of sensor arrays based on the knowledge obtained through the investigation of modified butterfly wings.

Original languageEnglish
Article number1446
JournalSensors
Volume16
Issue number9
DOIs
Publication statusPublished - Sep 7 2016

Fingerprint

Butterflies
wings
Tuning
Vapors
Air
tuning
Optics and Photonics
vapors
Nanocomposites
Chitin
Atmosphere
Ethanol
Color
chitin
color
Atomic layer deposition
sensors
air
Sensor arrays
atomic layer epitaxy

Keywords

  • Atomic layer deposition
  • Biomaterial
  • Butterfly wing
  • Optical spectroscopy
  • Photonic crystal
  • Vapor sensing

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Atomic and Molecular Physics, and Optics
  • Analytical Chemistry
  • Biochemistry

Cite this

Pretreated butterfly wings for tuning the selective vapor sensing. / Piszter, Gábor; Kertész, K.; Bálint, Z.; Bíró, L.

In: Sensors, Vol. 16, No. 9, 1446, 07.09.2016.

Research output: Contribution to journalArticle

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