Biosensors and Point-of-Care Devices for Bacterial Detection: Rapid Diagnostics Informing Antibiotic Therapy

Ashna Gopal, Li Yan, Saima Kashif, Tasnim Munshi, Vellaisamy A.L. Roy, Nicolas H Voelcker, Michael Chen

Research output: Contribution to journalArticlepeer-review

Abstract / Description of output

With an exponential rise in antimicrobial resistance and stagnant antibiotic development pipeline, there is, more than ever, a crucial need to optimize current infection therapy approaches. One of the most important stages in this process requires rapid and effective identification of pathogenic bacteria responsible for diseases. Current gold standard techniques of bacterial detection include culture methods, polymerase chain reactions, and immunoassays. However, their use is fraught with downsides with high turnaround time and low accuracy being the most prominent. This imposes great limitations on their eventual application as point-of-care devices. Over time, innovative detection techniques have been proposed and developed to curb these drawbacks. In this review, a systematic summary of a range of biosensing platforms is provided with a strong focus on technologies conferring high detection sensitivity and specificity. A thorough analysis is performed and the benefits and drawbacks of each type of biosensor are highlighted, the factors influencing their potential as point-of-care devices are discussed, and the authors' insights for their translation from proof-of-concept systems into commercial medical devices are provided.
Original languageEnglish
Article number2101546
JournalAdvanced Healthcare Materials
Early online date30 Nov 2021
Publication statusPublished - 16 Dec 2021

Keywords / Materials (for Non-textual outputs)

  • antibiotic therapy
  • Bacteria detection
  • biosensors
  • Point-of-care
  • rapid diagnostics


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