Universal, reusable virus deactivation system for respiratory protection (2017)
nature.com
nature.com
The methods section seems pretty easy to replicate, just dissolve some salt in water (concentrations in paper), soak it in the masks, and dry in a low-temp oven.
Interesting that these masks really are not airtight, but still effective?
What a fantastic time to be alive.
When tested with tightly sealed sides, salt-coated filters showed remarkably higher filtration efficiency than conventional mask filtration layer, and 100% survival rate was observed in mice infected with virus penetrated through salt-coated filters.
That problem affects all mask use.
I read a 2010 paper[0] this week which IIRC showed that normal mask types (pre-formed, soft-multilayered surgical, etc.) all had about 30% of the efficiency of N95 masks. For the N95 masks, they failed to get 95%, more like 90%, due to poor fit. A silicone pressure fit type is really important. No unixbeards allowed!
>:(
[0] https://journals.sagepub.com/doi/pdf/10.1177/153567601001500...
If a point is unclear it'll likely be caught by reviewers, if it's not the researcher's contact details are there on the paper.
- I'm unconvinced that hyperlinked websites are a good idea as a primary format for research. Research needs to be accessible in perpetuity. We've proven atrocious at keeping websites available and software running.
- Lots of properly structured footnotes and labelled photos are, as I mentioned earlier, a large timesink. Writing papers is already a substantial time investment, which both distracts from other research and can dissuade researchers from publishing more minor results.
Both of these are superable for the right reasons (e.g. CS research by its nature needs digital components), but adding material because photos are cheap isn't to my mind the right reason.
I'm thinking about it from the perspective of a software developer for whom things like jenkinsfiles, vagrantfiles, and CloudFormation templates are a thing.
Science should have a similar standardized domain-specific way to specify their experiment setup procedures.
All specification systems have weaknesses, and there are good reasons why those weaknesses are tolerated. The mere statement that a specification could be more accurate, without engaging with those reasons, isn't productive.
Randy Schekman, a US biologist who won the Nobel prize in physiology or medicine this year and receives his prize in Stockholm on Tuesday, said his lab would no longer send research papers to the top-tier journals, Nature, Cell and Science.
https://www.theguardian.com/science/2013/dec/09/nobel-winner...
Most importantly, use deionised water, and measure how much salt is on the actual mask. (Electrical impedance submerged in deionised water vs reference mask would work.)
Namely
1. Disrespect / fail to see / Ignore the presence of life in other species. 3. Superior complexity + Good thinking skills = Degrading survival instinct & arise of misconception-delusional science logics.
Argue back