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[Microbiology] Re: Plastic ( PS) Petri Dishes

John Gentile yjgent at cox.net
Tue Mar 14 21:54:47 EST 2006

On 2006-03-14 17:49:48 -0500, "N10" <limbic_lesion at hotmail.com> said:

> Hi
> In Europe at leasts the price of plastic disposables is escalating  as 
> I write. Today I turned my mind to ways of redesigning the humble but 
> ubiquitous Petri dish to counter the current trend and thus make them 
> cheaper  to produce and perhaps a little more eco friendly. The current 
> usage in the Lab I work in is 35000 plates per week so any cost saving 
> would be significant.
> Here are a couple of my ideas ;
> a)     For certain applications opaque lids made form  cheaper recycled 
> or primary  polymers would suffice and could well be significantly 
> cheaper
> b)    Again for certain applications a  card  or reinforced  lid ( 
> Biodegradable)  would suffice.
> c)     For spread plate applications a biodegreable suitabley lined 
> unit made completely from recyled paper or card might be just the ticket
> Any thoughts ?
> Best N10

I don't think I could use opaque plates - I get a lot of info and 
detail from transfused light, not to mention evidence of hemolysis of 

Of course no one can now go back to the old Pyrex glass petri dishes 
that require sterilization and washing, etc. Some times I don't miss 
the "old days"!
John Gentile, MS M(ASCP)
Laboratory Information Manager
Providence, VAMC

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