just to add a bit of clarity here, the stain which defines Gram positive and negative were developed by a man named Gram, and the 'positive' and 'negative' do NOT refer to the electropotential of the bacteria, but to the method's discoverer, Hans Christian Gram.
On Wed, 2008-10-29 at 11:40 -0500, Norton, Steve wrote: > Relative to bacteria, from Wikipedia: > > There are two main types of bacterial cell walls, Gram positive and > Gram negative, which are differentiated by their Gram staining > characteristics. > > Gram positive: > > Teichoic acids give the Gram positive cell wall an overall negative > charge due to the presence of phosphodiester bonds between teichoic > acid monomers. > > Gram negative: > > In addition to the peptidoglycan layer, the Gram negative cell wall > also contains an additional outer membrane composed by phospholipids > and lipopolysaccharides which face into the external environment. As > the lipopolysaccharides are highly-charged, the Gram negative cell > wall has an overall negative charge. > > From what I have read, viruses have a slight negative charge at > neutral PH. > > - Steve N > > > > > ______________________________________________________________________ > From: Bethany Methven [mailto:mrs_ak_h...@yahoo.com] > Sent: Wednesday, October 29, 2008 12:38 AM > To: silver-list@eskimo.com > Subject: CS>positive silver ions and negatively charged bacteria > > > > > Hi, I'm new to this list. Here in Alaska, very few people actually > know about CS. I am trying to learn as much as I can so that I can > educate those around me. I have been studying about the positive > charge from silver ions losing an electron during the electro > colloidal process. Anyway, my question is - Does anyone know if all > bacteria, fungus, viruses, etc are negatively charged? Some web site > was talking about how the positive charge from the silver ions > attracts to the negative charge of the bacteria, and then basically > short circuits it's biological clock, making it unable to reproduce. > If this is true, then how effective are silver particles, if they are > negatively charged, vs. the positive charge of the ions? I have heard > so much confusion regarding ions vs. particles. I"d like to hear > some other opinions. Thanks - Beth > -- The Silver List is a moderated forum for discussing Colloidal Silver. Instructions for unsubscribing are posted at: http://silverlist.org To post, address your message to: silver-list@eskimo.com Address Off-Topic messages to: silver-off-topic-l...@eskimo.com The Silver List and Off Topic List archives are currently down... List maintainer: Mike Devour <mdev...@eskimo.com>
