PMC:7796291 / 20990-21222 JSONTXT

{"project":"LitCovid-sentences","denotations":[{"id":"T172","span":{"begin":0,"end":232},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"An electrostatic capture mechanism significantly improves the quality factor (filtration performance per a unit resistance); and when the surface charges are decayed, filtration mostly depends on the mechanical capture of particles."}