ArticleThe journal of physical chemistry. A2025
Bioaerosol Characterization with Vibrational Spectroscopy: Overcoming Fluorescence with Photothermal Infrared (PTIR) Spectroscopy.
Article in The journal of physical chemistry. A, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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Who cites it
4 citing papers in PubMed.
- Multimodal Optical and Ratiometric ATR-FTIR Discrimination of Mixed Aerosol Components Using pH-Responsive Methylcellulose-Phenol Red Films.Sensors (Basel, Switzerland) · 2026Article
- Ester Formation in Alcohol Microdroplet Sprays: Enhanced Reactivity of CThe journal of physical chemistry. A · 2025Article
- Broadband Fourier-Transform Optical Photothermal Infrared Spectroscopy and Imaging.Analytical chemistry · 2025Article
- Sources and aging of individual atmospheric particles in New York City: Integrating novel functional group data from optical photothermal spectroscopy with elemental and mass spectrometry data.Aerosol science and technology : the journal of the American Association for Aerosol Research · 2025Article
Corrections and comments
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Authors and funding
11 authors.
Funding
Abstract
Aerosols containing biological material (i.e., bioaerosols) impact public health by transporting toxins, allergens, and diseases and impact the climate by nucleating ice crystals and cloud droplets. Single particle characterization of primary biological aerosol particles (PBAPs) is essential, as individual particle physicochemical properties determine their impacts. Vibrational spectroscopies, such as infrared (IR) or Raman spectroscopy, provide detailed information about the biological components within atmospheric aerosols but these techniques have traditionally been limited due to the diffraction limit of IR radiation (particles >10 μm) and fluorescence of bioaerosol components overwhelming the Raman signal. Herein, we use photothermal infrared spectroscopy (PTIR) to overcome these limitations and characterize individual PBAPs down to 0.18 μm. Both optical-PTIR (O-PTIR) and atomic force microscopy-PTIR (AFM-PTIR) were used to characterize bioaerosol particles generated from a cyanobacterial harmful algal bloom (cHAB) dominated by
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Registered trials
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