Date: 27/06/2022 14:48:25
From: buffy
ID: 1901494
Subject: Felt pen tip as biological sampler
I read about this in Scientific American, but here is someone else’s take on it. The actual paper is a bit difficult to read.
https://www.foodmanufacturing.com/home/news/22172192/a-markers-felt-nib-proves-to-be-an-excellent-medical-sampler