4 ms·

The thing is, we need to kill bacterias in many other places than the human body: - medical equipment: handles for scalpels, syringes, operation tables... All

The thing is, we need to kill bacterias in many other places than the human body: - medical equipment: handles for scalpels, syringes, operation tables... All those things we need to clean again and again. - passage ways: doors, handles, stairs handrails, subway grab bars... All the things that propagate infections in very dense populated areas. - research fabs: hazmat suits, protection googles, fum hood protections,... All the stuff you want to make sure don't end up cross contaminate your batch or escape. So it's still very useful.

smileysteve 3y ago
Out of the body, we have a number of solutions; fire, bleach, uv-c, lye; on your list, only the plastics (personal protection stuff) can't cleaned with these many times around
- notamy 3y ago
  Unfortunately, bacteria resistant to bleach are starting to develop https://www.microbiologyresearch.org/content/journal/micro/10.1099/mic.0.001418 https://www.microbiologyresearch.org/content/journal/micro/1...
- BiteCode_dev 3y ago
  You are not going to bleach a handrail 50 times a day, it's not economically viable.
hedora 3y ago
> passage ways: doors, handles, stairs handrails, subway grab bars... All the things that propagate infections in very dense populated areas Sterilizing those often increases disease spread. By default, they are covered with a microbial community that can outcompete things that are human pathogens. If you sterilize it, then you’re either leaving a coating of food (mostly dead skin cells) for pathogens to eat, or a coating of nasty poisons that strip the protective barrier off people’s skins, which undermines their ability to fight off what pathogens they do end up touching.
- CrHn3 3y ago
  I believe you mean sanitize, not sterilize. Probiotics can be applied to mitigate undesirable bacterial growth after sanitizing [1]. 1. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7350316/ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7350316/
- BiteCode_dev 3y ago
  Not with such material which kills everything.
heavyset_go 3y ago
> - medical equipment: handles for scalpels, syringes, I hope these things are autoclaved and not just disinfected.
- EA-3167 3y ago
  It depends on the instrument, you can't autoclave the scope used for cystology for example, they're generally treated with vaporized Hydrogen peroxide. It's very effective, but not as effective as an autoclave.
- Cerium 3y ago
  They also need to be mechanically cleaned. Simply sterile is not sufficient due to the presence of pyrogens after sterilization. https://ethidelabs.com/depyrogenation-and-sterilization-for-medical-devices/ https://ethidelabs.com/depyrogenation-and-sterilization-for-...
- BiteCode_dev 3y ago
  Yes, but once they are out of their container, they start collecting bacterias. No matter how clean operating rooms are (which can vary a lot), it's never perfectly sanitized. A cheap way to get many surfaces agent free would be a nice additional safety measure.
expertopinion 3y ago
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smileysteve 3y ago

Out of the body, we have a number of solutions; fire, bleach, uv-c, lye; on your list, only the plastics (personal protection stuff) can't cleaned with these many times around

notamy 3y ago
Unfortunately, bacteria resistant to bleach are starting to develop https://www.microbiologyresearch.org/content/journal/micro/10.1099/mic.0.001418 https://www.microbiologyresearch.org/content/journal/micro/1...
BiteCode_dev 3y ago
You are not going to bleach a handrail 50 times a day, it's not economically viable.

hedora 3y ago

> passage ways: doors, handles, stairs handrails, subway grab bars... All the things that propagate infections in very dense populated areas Sterilizing those often increases disease spread. By default, they are covered with a microbial community that can outcompete things that are human pathogens. If you sterilize it, then you’re either leaving a coating of food (mostly dead skin cells) for pathogens to eat, or a coating of nasty poisons that strip the protective barrier off people’s skins, which undermines their ability to fight off what pathogens they do end up touching.

CrHn3 3y ago
I believe you mean sanitize, not sterilize. Probiotics can be applied to mitigate undesirable bacterial growth after sanitizing [1]. 1. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7350316/ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7350316/
BiteCode_dev 3y ago
Not with such material which kills everything.

heavyset_go 3y ago

> - medical equipment: handles for scalpels, syringes, I hope these things are autoclaved and not just disinfected.

EA-3167 3y ago
It depends on the instrument, you can't autoclave the scope used for cystology for example, they're generally treated with vaporized Hydrogen peroxide. It's very effective, but not as effective as an autoclave.
Cerium 3y ago
They also need to be mechanically cleaned. Simply sterile is not sufficient due to the presence of pyrogens after sterilization. https://ethidelabs.com/depyrogenation-and-sterilization-for-medical-devices/ https://ethidelabs.com/depyrogenation-and-sterilization-for-...
BiteCode_dev 3y ago
Yes, but once they are out of their container, they start collecting bacterias. No matter how clean operating rooms are (which can vary a lot), it's never perfectly sanitized. A cheap way to get many surfaces agent free would be a nice additional safety measure.

expertopinion 3y ago

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