When you need to measure white blood cell counts, it usually involves trips to clinics and expensive equipment for analysis. Likewise, checking water quality for contaminants can be a lengthy process.
Paper is a hydrophilic material meaning that its affinity with water allows solutions to flow through the porous structure. This simple capillary action does not require added mechanical constructions ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results