Quote:
Originally Posted by
Animeniax
The authors of those abstracts are purposefully obfuscating the subject matter with their big science words. Though they appear to basically say the same thing, that the soap disrupts the bacteria's ability to cling to your skin, not that they kill the bacteria.
Eh? Okay, let me sort it for you in order of difficulty.
Super Easy (Sapphi):
Quote:
...soap is very very important for killing bacteria. It's a combination of the high pH and hot water that does it but soap is by no means irrelevant! Think of it like this. Soap kills the bacteria by dissolving it's cell walls (for the most part unless we're talking about super bacteria that survives in ridiculous conditions), the sponge scrapes off the dead bacteria carcasses and the water helps dissolve the soap and various other polar elements stuck on your body...
Easy (Reddit):
Quote:
They're just lucky bacteria. Soap is a detergent. A common detergent in handwashing soap is sodium dodecyl sulfate. SDS is used to kill because it has both polar and nonpolar properties. Thus, it is able to get into the membrane of a cell, which itself as a polar and nonpolar end (and lined up, you get a nonpolar core and a polar exteriors to the membrane's envelope.) SDS gets in there and causes the disruption and dispersion of the lipids, meaning the cell spills its guts. Cells don't live once they spill their guts.
Medium (Sci-toys):
Quote:
The surfactants in the bacterial cell wall are in two layers, with all of the oil loving ends of the molecules facing inwards between the two layers. Adding soap and scrubbing allows the molecules in the two layers to turn inside-out, and this allows the bacteria to leak, and soap to get inside, where it can harm the bacterium’s enzymes that it needs to live.
Hard (NIH):
Quote:
Detergents with strongly hydrophilic heads (SDS and beta-D-dodecylmaltoside) only very slowly solubilize liposomal membranes and do not cause liposome fusion. These properties are correlated with a slow bilayer flip-flop. Our data suggest that detergent solubilization proceeds by a combination of 1) a transbilayer attack, following flip-flop of detergent molecules across the lipid bilayer, and 2) extraction of membrane components directly by detergent micelles.
I think I give up after this~ @___@ By all means, keep having a stinky booty all day, this is Amurrica, you're free to do so! No judgement here, us zannen na otaku have to stick together. Though my suggestion is if you aren't prepared to get down and dirty in a science argument by being willing to read the actual research (not sketchy oversimplified reporter crap), don't have one. Though if you don't have the foundation, I can see why it's easy to believe the oversimplified garbage... that's a problem in society! D: D: Again, bacteria isn't the ONLY issue resolved with soap... I am not disagreeing with you about loosening oil/non-polarish substances that was in one of the first posts I made.
To add an important disclaimer, as Buff said, it isn't actually necessary (and is actually a bad idea for reasons I won't get into) to kill 100% of the bacteria on your body. I can't get into why if you won't accept the premise that soap mechanistically kills bacteria. I didn't even get into pH and optimal timing. But this is really more of a regulated "disruption" of the levels of bacteria (as seen by brushing your teeth and preventing cavities/plaque). What do you believe toothpaste does?
To bring everyone else into the discussion, what is your daily hygiene regimen? Do ya'll brush your tongues? (I know a lot of people who don't do this).
Shinta and Haru strike me as neat freaks.
Quote:
Because the topic at hand is actually very informative and interesting, so let's stay on topic.
MFauli's bday? Wuss.