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User: pbi

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  1. Polymeric source? on Nanomaterials Used in Possible Cancer Cure · · Score: 2, Interesting

    Strange that they are using PEO and cyclodextrin as a "encapsulating" polymeric source for the transferrin. I would think that PEO would be not very good choice for living cells (cancerous or non-cancerous). If the body needs to digest this polymer, PEO has a history of problems with its by-products. Most of the by-products are ethanol, which would kill the cells. Probably callogen or similar forms would be better. Perhaps, they are already using similar types of polymers.

  2. Newsommercial = news + infommercial on Cannes' Palme d'Or goes to Michael Moore · · Score: 1

    Newsommercial should be the new term for USA news. There is some news but in an infommercial kind of way. There is more entertainment value to the news channels than actual news. Face it, USA does not have any bias media out there. In addition, the news that is claimed as news really has no news value to the masses, such as Michael Jackson. Personal tragedies should not be given the same newsworthy status as the Spain's 3-11. The USA's short attention span has played such a critical role to the news media that every news channel is making the news similar to Jerry Springer, Oprah, etc. This is why that no one should place full faith into any one news story in the USA.

  3. Re:OMG sulfur is teh stink! on Lithium-Sulfur Batteries Unveiled · · Score: 4, Informative

    H2SO4 is much different to H2S, olfactory wise. H2SO4, sulfuric acid, is what is used in car batteries. H2S, hydrogen sulfide, is the rotten egg smell. SO2, sulfur dioxide, is a colorless, odorless gas that can suffocate in large quantities.

    I think that the sulfur containing batteries are using alkyl sulfate, SO3- (immobilized, bonded on the polymer), no smell. However, there is another possibility that the polymer is using mercaptans or alkyl thiols. Depending on the purity of the polymer, it can stink (not completely bonded with leftover thiols) or not stink (all are bonded, without any leftover thiols).

    The alkyl sulfate polymer make sense as charge carriers, but the Li+ could be too intimate (closely bonded) to the SO3- group to make it a viable group. OTOH, alkyl thiols can work just as good, however these polymeric compounds are not quite that easy to synthesize. PEO, polyethylene oxide (CH2CH2O)x, is a polymer that has been used for many battery applications. Possibly, they could have something close to PEO using sulfur.