Synthesis and characterization of PANI-Fex-Al1 − x (x = 0.8, 0.6) nanocomposite thin films for identification of pathogenic Leptospira

Jamal Jurait, Huda Abdullah, Siti Khairani Bejo, Iskandar Yahya, Norshafadzila Mohammad Naim

Research output: Contribution to journalArticle

Abstract

Polyaniline Fe-Al nanocomposite thin films were fabricated on a glass substrate using a spin coating technique. The detection and identification of pathogenic Leptospira by measuring a current-voltage (I-V) and electrochemical impedance spectroscopy (EIS) showed a relationship of concentration bacteria vs. current and vs. impedance. Structural properties and morphology of nanocomposites were evaluated using energy-dispersive X-ray spectroscopy (EDX), atomic force microscope (AFM), transmission electron microscopy (TEM), and field emission scanning electron microscopy (FESEM). TEM and FESEM images showed the uniformed distribution of nanoparticles of Fe-Al alloy. The AFM images showed the roughness of the thin film surface to perform at a higher sensitivity. The EDX analysis confirms the presence of the polyaniline, Fe, and Al elements in the substrate. This bacterial biosensor has also been tested with a bacteria concentration, ranging from 1 × 105 to 1 × 108 CFU mL−1, in wet samples for disease preventions.

Original languageEnglish
Pages (from-to)1-14
Number of pages14
JournalIonics
DOIs
Publication statusAccepted/In press - 9 Nov 2017

Fingerprint

Nanocomposite films
Polyaniline
Field emission
Bacteria
nanocomposites
Microscopes
Transmission electron microscopy
Thin films
bacteria
Scanning electron microscopy
Coating techniques
field emission
Spin coating
Substrates
synthesis
thin films
Electrochemical impedance spectroscopy
microscopes
Biosensors
impedance

Keywords

  • I-V and EIS measurement
  • Pathogenic Leptospira
  • Polyaniline
  • Structural properties

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Materials Science(all)
  • Engineering(all)
  • Physics and Astronomy(all)

Cite this

Synthesis and characterization of PANI-Fex-Al1 − x (x = 0.8, 0.6) nanocomposite thin films for identification of pathogenic Leptospira. / Jurait, Jamal; Abdullah, Huda; Bejo, Siti Khairani; Yahya, Iskandar; Naim, Norshafadzila Mohammad.

In: Ionics, 09.11.2017, p. 1-14.

Research output: Contribution to journalArticle

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