Development of novel piezoelectric biosensor using PZT ceramic resonator for detection of cancer markers

Li Su, Chi-Chun Fong, Pik-Yuan Cheung, Mengsu Yang*

*Corresponding author for this work

Research output: Chapters, Conference Papers, Creative and Literary WorksRGC 12 - Chapter in an edited book (Author)peer-review

24 Citations (Scopus)

Abstract

A novel biosensor based on piezoelectric ceramic resonator was developed for direct detection of cancer markers in the study. For the first time, a commercially available PZTceramic resonator with high resonance frequency was utilized as transducer for a piezoelectric biosensor. A dual ceramic resonators scheme was designed wherein two ceramic resonators were connected in parallel: one resonator was used as the sensing unit and the other as the control unit. This arrangement minimizes environmental influences including temperature fluctuation, while achieving the required frequency stability for biosensing applications. The detection of the cancer markers Prostate Specific Antigen (PSA) and α-Fetoprotein (AFP) was carried out through frequency change measurement. The device showed high sensitivity (0.25 ng/ml) and fast detection (within 30 min) with small samples (1 μl), which is compatible with the requirements of clinical measurements. The results also showed that the ceramic resonator-based piezoelectric biosensor platform could be utilized with different chemical interfaces, and had the potential to be further developed into biosensor arrays with different specificities for simultaneous detection of multiple analytes.
Original languageEnglish
Title of host publicationBiosensors and Biodetection
Subtitle of host publicationMethods and Protocols, Volume 2: Electrochemical, Bioelectronic, Piezoelectric, Cellular and Molecular Biosensors
EditorsBen Prickril, Avraham Rasooly
Place of PublicationNew York, NY
PublisherHumana Press
Chapter19
Pages277-291
Edition2nd
ISBN (Electronic)978-1-4939-6911-1
ISBN (Print)978-1-4939-6910-4
DOIs
Publication statusPublished - 2017

Publication series

NameMethods in Molecular Biology
Volume1572
ISSN (Print)1064-3745
ISSN (Electronic)1940-6029

Research Keywords

  • Ceramic resonator
  • Piezoelectric
  • Prostate specific antigen
  • α-fetoprotein

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