PMC:7796291 / 20107-20846
Annnotations
{"target":"https://pubannotation.org/docs/sourcedb/PMC/sourceid/7796291","sourcedb":"PMC","sourceid":"7796291","source_url":"https://www.ncbi.nlm.nih.gov/pmc/7796291","text":"To examine whether UV-treated or detergent-laundered respirators changed their chemistry, contact angles and FTIR spectra from those surfaces were examined (Figure 4B,C). Untreated PP media has C-H stretching (2906 cm−1), CH2/CH3 asymmetrical bending (around 2982 cm−1), and other carbon and hydrogen bonding (2835 to 2972 cm−1) peaks [47,48]. After UV irradiation, distinctive peaks were observed for: C-O-C (around 1058 cm−1) and O-H bending (around 1161 cm−1) [49,50]. The changed surface chemistry seemed to attribute to surface oxidation, but hardly affected the wettability and filtration performance after UV treatment. Solvent treatments with IPA, EtOH, and ClO− showed neither noxious residues nor distinctive hydrophilic bonding.","tracks":[{"project":"LitCovid-PubTator","denotations":[{"id":"207","span":{"begin":281,"end":287},"obj":"Chemical"},{"id":"208","span":{"begin":292,"end":300},"obj":"Chemical"},{"id":"209","span":{"begin":651,"end":654},"obj":"Chemical"},{"id":"210","span":{"begin":656,"end":660},"obj":"Chemical"},{"id":"211","span":{"begin":666,"end":669},"obj":"Chemical"}],"attributes":[{"id":"A207","pred":"tao:has_database_id","subj":"207","obj":"MESH:D002244"},{"id":"A208","pred":"tao:has_database_id","subj":"208","obj":"MESH:D006859"},{"id":"A209","pred":"tao:has_database_id","subj":"209","obj":"MESH:D019840"},{"id":"A210","pred":"tao:has_database_id","subj":"210","obj":"MESH:D000431"},{"id":"A211","pred":"tao:has_database_id","subj":"211","obj":"MESH:D006997"},{"subj":"207","pred":"source","obj":"LitCovid-PubTator"},{"subj":"208","pred":"source","obj":"LitCovid-PubTator"},{"subj":"209","pred":"source","obj":"LitCovid-PubTator"},{"subj":"210","pred":"source","obj":"LitCovid-PubTator"},{"subj":"211","pred":"source","obj":"LitCovid-PubTator"}],"namespaces":[{"prefix":"Tax","uri":"https://www.ncbi.nlm.nih.gov/taxonomy/"},{"prefix":"MESH","uri":"https://id.nlm.nih.gov/mesh/"},{"prefix":"Gene","uri":"https://www.ncbi.nlm.nih.gov/gene/"},{"prefix":"CVCL","uri":"https://web.expasy.org/cellosaurus/CVCL_"}]},{"project":"LitCovid-sentences","denotations":[{"id":"T164","span":{"begin":0,"end":170},"obj":"Sentence"},{"id":"T165","span":{"begin":171,"end":343},"obj":"Sentence"},{"id":"T166","span":{"begin":344,"end":471},"obj":"Sentence"},{"id":"T167","span":{"begin":472,"end":626},"obj":"Sentence"},{"id":"T168","span":{"begin":627,"end":739},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"attributes":[{"subj":"T164","pred":"source","obj":"LitCovid-sentences"},{"subj":"T165","pred":"source","obj":"LitCovid-sentences"},{"subj":"T166","pred":"source","obj":"LitCovid-sentences"},{"subj":"T167","pred":"source","obj":"LitCovid-sentences"},{"subj":"T168","pred":"source","obj":"LitCovid-sentences"}]}],"config":{"attribute types":[{"pred":"source","value type":"selection","values":[{"id":"LitCovid-PubTator","color":"#93d3ec","default":true},{"id":"LitCovid-sentences","color":"#eceb93"}]}]}}