OpenMNP is an open-access platform dedicated to eliminating technical barriers in microplastic identification. We provide consistent, transparent methods — starting with Raman spectroscopy — so every researcher, regulator, and industry professional can identify microplastics with confidence. Together, we are building a more reliable detection standard.
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The in-situ Raman identification framework powering this platform has been peer-reviewed and published in ES&T, a top-tier environmental journal. Covering 8 polymer types from 25°C to 800°C, the method achieves 91% median matching accuracy — a 44-point improvement over conventional libraries.
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The Microplastics Detection and Pollution Control Laboratory, established under the Clean Fuel Division of the Institute of Process Engineering, Chinese Academy of Sciences, has been officially launched. The laboratory focuses on rapid and intelligent microplastics detection and characterization, synergistic control technologies, and environmental occurrence and transport studies.
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Using the OpenMNP Raman identification framework, this study provides direct field evidence of atmospheric microplastic emissions from a circulating fluidized bed incinerator, estimating 2.1×1012 particles/yr. The study identifies PVC and polyacrylamide as dominant polymer types and reveals how air pollution control devices influence microplastic abundance across different flue gas stream locations.
Read Paper →OpenMNP uses an in-situ Raman-based framework designed to identify aged microplastics.
The method uses an expanded aging spectral library rather than relying only on pristine polymer references.
The framework recognizes polymer-derived particles that deviate from pristine spectra but retain essential polymeric features.
Pearson-based matching degrees and classification thresholds are clearly reported, making each identification decision traceable.
Chinese Academy of Sciences
Institute of Process Engineering, CAS
Chinese Research Academy of Environmental Sciences
State Key Laboratory of Mesoscience and Engineering
