A clinical pilot screened placenta and meconium while examining operating-room materials, airborne fallout and negative controls.
Source details
Thorsten Braun, Loreen Ehrlich, Wolfgang Henrich, Sebastian Koeppel, Ievgeniia Lomako, Philipp Schwabl, Bettina Liebmann. Pharmaceutics. 2021.
DOI: 10.3390/pharmaceutics13070921
Findings
A clinical pilot screened placenta and meconium while examining operating-room materials, airborne fallout and negative controls.
- 0.05-0.5 mm reported screening window; FTIR clinical pilot; placenta and meconium tables.
Methods and scope
Chemical digestion, coarse sieving and FTIR microscopy screened a specified polymer panel. Sampling, instrument/container negative controls, procedural blank, clinical material checks and operating-room fallout were assessed.
What this source can support
Demonstrates why human tissue findings require detailed contamination controls.
Very small pilot; several negative controls were positive. Some sample and control polymers overlap, making counts or general prevalence unsuitable. Clinical handling complicates attribution. Positive screening does not establish fetal injury or a route from a named product.
Related evidence
Reported values and source locations
| Reported value | Measurement basis | Conditions and size context | Original document location |
|---|---|---|---|
| 0.05-0.5 mm reported screening window | method screening size window | FTIR clinical pilot; placenta and meconium tables 50 µm initial sieve; 0.05-0.5 mm screening tables | PDF pp. 6-7 Tables 1-2; p. 5 §2.4 |
Source provenance
Primary PDF SHA-256: d2f3af1338e50d04ec84f548cecdf8e8ac7da1866d3387726c20089cb23f82cd
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