LitCovid-sentences  

PMC:7435837 / 25795-30017 JSONTXT 10 Projects

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Id Subject Object Predicate Lexical cue
T197 0-4 Sentence denotes 6.2.
T198 5-19 Sentence denotes Air Filtration
T199 20-259 Sentence denotes As with water, coronaviruses survive on inanimate surfaces [133] that include metal, glass, wood, paper, silicon, surgical gloves, plastic, and non-stick PTFE surfaces for a period of up to nine days on plastic and two days on steel [134].
T200 260-381 Sentence denotes It was also observed that MERS-CoV could survive in the air for much longer durations than influenza virus strains [135].
T201 382-459 Sentence denotes However, living tissue such as mucosal membranes harbors these viruses [136].
T202 460-571 Sentence denotes As with the need for water, humans need to breathe and are, therefore, naturally exposed to all these surfaces.
T203 572-656 Sentence denotes The need for broad-spectrum protection against airborne microbes has been expressed.
T204 657-886 Sentence denotes Three protective measures against airborne spread of viruses have been suggested to ensure the antiviral efficiency of filter materials and lastly, that these materials are not limited to only one type of device or surface [137].
T205 887-1042 Sentence denotes Wearing facial masks is a commonly recommended prophylactic measure against the spread of airborne pathogens [138,139] such as the influenza A virus [140].
T206 1043-1255 Sentence denotes It is even recommended that patients suspected of being infected with SARS-CoV-2 should be fitted with masks during surgery or procedure requiring anesthesia [141] and also during transport to the hospital [142].
T207 1256-1452 Sentence denotes FFP2 and FFP3/N95 masks offer significant protection against airborne particles and even then the FFP3 masks filter at least 99% of airborne particles, leaving a gap for some particle penetration.
T208 1453-1516 Sentence denotes These masks also still pose the risk of improper sealing [143].
T209 1517-1797 Sentence denotes It has been shown that airborne viruses, for example, norovirus, adenovirus, and torque teno virus can be detected in air samples [144] on for instance PTFE filters that were used to detect SARS-CoV [145], and MERS by the employment of a specialized air sampling instrument [146].
T210 1798-2145 Sentence denotes Several viruses, especially respiratory viruses are effectively distributed by airborne droplets [147,148], and very obviously the human coronaviruses such as SARS-CoV [145,149,150], MERS [146,151,152], and SARS-CoV-2 [153,154,155,156] even though some controversy exists regarding respiratory transmission as the only means of distribution [157].
T211 2146-2203 Sentence denotes Some examples of viral air filtration are discussed next.
T212 2204-2259 Sentence denotes HEPA filters were coated with charged carbon nanotubes.
T213 2260-2418 Sentence denotes During the filtration study, the nanotubes were shown to be 92% effective in the filtration of a viral bacteriophage, MS2, as a model of viral particle [158].
T214 2419-2547 Sentence denotes There are virtually no reports on coated antiviral air filters, let alone employing an LbL coating method to create these masks.
T215 2548-2727 Sentence denotes These are rapid inactivation action, broad-spectrum inactivation not only against specific strains, and lastly universal application on various media, not just facial masks [159].
T216 2728-2867 Sentence denotes The coating of the filter fabric of these masks with PEI achieved more than 99.999% antiviral activity against the T4D bacteriophage virus.
T217 2868-2961 Sentence denotes These coatings were achieved by dip coating, however, LbL nanocoating was not reported [159].
T218 2962-3062 Sentence denotes A disposable polyimide layer has been coated onto porous silicon-based masks, including an N95 mask.
T219 3063-3171 Sentence denotes The layer proved to be hydrophobic and prevented the accumulation of droplets on the mask almost completely.
T220 3172-3246 Sentence denotes The film can be peeled off after use and replaced to reuse the mask [160].
T221 3247-3378 Sentence denotes A comprehensive review of cellulose-based air filters has shown that cellulose is an effective material to produce antiviral masks.
T222 3379-3588 Sentence denotes Cellulose ester materials that are anionic are still seen as the most effective antiviral material in filters and again affirms the potential interaction of positively charged spike proteins and negative GAGs.
T223 3589-3698 Sentence denotes However, LbL nanocoating of cellulose has both been described as a method to produce antiviral filters [161].
T224 3699-3864 Sentence denotes In an unrelated application, our research has shown that cellulose can be coated easily employing LbL coating with, for example, chitosan as coating materials [162].
T225 3865-3986 Sentence denotes It is proposed that it would be possible to modify a facial mask that is based on a cellulose fabric with antiviral GAGs.
T226 3987-4222 Sentence denotes There are indications that LbL nanocoating of air filtration devices can make a significant contribution to the prevention of virus distribution and be very relevant to the prevention of the respiratory variants of human coronaviruses.