Optical biosensing of markers of mucosal inflammation

Obdulia Covarrubias-Zambrano, Massoud Motamedi, Bill T. Ameredes, Bing Tian, William J. Calhoun, Yingxin Zhao, Allan R. Brasier, Madumali Kalubowilage, Aruni P. Malalasekera, Asanka S. Yapa, Hongwang Wang, Christopher T. Culbertson, Deryl L. Troyer, Stefan H. Bossmann

Research output: Contribution to journalArticlepeer-review


We report the design and adaptation of iron/iron oxide nanoparticle-based optical nanobiosensors for enzymes or cytokine/chemokines that are established biomarkers of lung diseases. These biomarkers comprise ADAM33, granzyme B, MMP-8, neutrophil elastase, arginase, chemokine (C-C motif) ligand 20 and interleukin-6. The synthesis of nanobiosensors for these seven biomarkers, their calibration with commercially available enzymes and cytokines/chemokines, as well as their validation using bronchoalveolar lavage (BAL) obtained from a mouse model of TLR3-mediated inflammation are discussed here. Exhaled Breath Condensate (EBC) is a minimally invasive approach for sampling airway fluid in the diagnosis and management of various lung diseases in humans (e.g., asthma, COPD and viral infections). We report the proof-of-concept of using human EBC in conjunction with nanobiosensors for diagnosis/monitoring airway inflammation. These findings suggest that, with nanosensor technology, human EBC can be utilized as a liquid biopsy to monitor inflammation/remodeling in lung disease.

Original languageEnglish (US)
Article number102476
JournalNanomedicine: Nanotechnology, Biology, and Medicine
StatePublished - Feb 2022


  • Iron/iron oxide core/shell nanoparticle
  • Lung inflammation
  • Nanodiagnostics
  • Nanomedicine
  • Optical biosensor

ASJC Scopus subject areas

  • Bioengineering
  • Medicine (miscellaneous)
  • Molecular Medicine
  • Biomedical Engineering
  • General Materials Science
  • Pharmaceutical Science


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