Substances foreign to the human body – toxic substances, or medication, for example – can have such a short lifetime that the effect is hard to examine. Sometimes the damage already has been done. For example: what happens if PAH’s, polycyclic aromatic hydrocarbons interact with hemoglobin in blood? PAH’s are released at asphalt road works Read more about A NEW LAB-ON-A-CHIP DETECTS EFFECTS OF POISON[…]