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How to sterilize cover slips (glasses)?


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32 replies to this topic

#16 sssss

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Posted 30 April 2009 - 01:51 AM

Hiiiiiiiiiiii,
In our lab,we dip the coverslips into abs. alcohol and then burn them in flame.It works..........

#17 Dr Teeth

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Posted 30 April 2009 - 05:49 AM

Hiiiiiiiiiiii,
In our lab,we dip the coverslips into abs. alcohol and then burn them in flame.It works..........


Depends on how many you want to prepare. We dump all of our coverslips into a glass pyrex dish, cover with aluminum foil and autoclave ours. Then we treat them with poly-lysine and dry them. You can sterilize hundreds at a time this way, just remember to remove them with sterile tweezers. Burning them with ethanol works too, but takes a heck of a lot longer for a huge number of slips.

Science is simply common sense at its best that is rigidly accurate in observation and merciless to fallacy in logic.
Thomas Henry Huxley

#18 GeorgeWolff

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Posted 01 May 2009 - 02:53 PM

why poly-lysine?

#19 Dr Teeth

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Posted 04 May 2009 - 05:33 AM

why poly-lysine?


Poly-L-Lysine coats the slides in a basic charge promoting adhesion of cells/tissue.

Science is simply common sense at its best that is rigidly accurate in observation and merciless to fallacy in logic.
Thomas Henry Huxley

#20 GeorgeWolff

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Posted 04 May 2009 - 01:11 PM

You use cover slips for this purpose?

#21 Dr Teeth

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Posted 05 May 2009 - 04:49 AM

We use coverslips for cell/tissue culture to prepare samples for immunohistochemical analysis.

Science is simply common sense at its best that is rigidly accurate in observation and merciless to fallacy in logic.
Thomas Henry Huxley

#22 asdfyrr

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Posted 06 May 2009 - 12:09 PM

Hi

I do this under a hood with a lamina flow. i put the slides in 96%etoh for some minutes, then flame them and let them dry.
afterwards i put them in poly-l-lysin for some minutes, then I aspirate the excess of poly-l-lysin and thats it.

the poly-l-lysin is not for necessary for sterilization, but several cell-lines need it to attacht to the slides

#23 Amy831

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Posted 05 June 2009 - 09:36 AM

We also autoclave our coverslips. We are using Fisherbrand 18 mm round coverslips. We individually wrap 1 to 3 coverslips together, depending on the number needed, in aluminum foil. Wrap neatly and very carefully, so they are easy to remove with tweezers later. We autoclave them on the dry cycle for about 30 min and they survive perfectly. For a different brand though, I would recommend testing 1 or 2 first. Put them in an erlenmeyer flask, or pipette tip box, so they are protected during and after autoclaving. You can then store them this way for several weeks following autoclaving. For added sterilization, we flame them one by one as they are taken out of the aluminum foil via tweezers, and then place them in the wells of the plate. One or two passes through the flame, without ethanol, is fine. We grow cells on them for up to 5 days in various treatments and conditions and do not have problems with contamination. We also have not had problems with contamination when they are not flamed, but now used it as an added security.

#24 GeneBee

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Posted 13 June 2009 - 02:48 AM

No need to sterilize them, just open a new box of cover slips in hood and use.

I never get contamination. I use corning cover slips.

#25 beirão

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Posted 16 June 2009 - 04:39 AM

Hi!
In my lab we put c/s overnight in nitric acid, on the other day we wash 3 times during 30' with water. Then 30' in 100% ethanol and 3 more washes with water. They are kept in water at RT.

#26 mydove

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Posted 29 June 2009 - 05:23 PM

I used to put coverslips one by one on the "Tip BOX". After filling one layer, I put a tissue paper cover them. Again, placed coverslips one by one. You could do several rounds till amount you need. Then autoclaved the "Tip Box".

Edited by mydove, 29 June 2009 - 05:25 PM.


#27 miraclestrain

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Posted 18 October 2009 - 08:28 PM

Hi,

I wash rinse them with distilled water for 10 mins
Then wash them with 90% alcohol for 15 mins
Wash them again with distilled water
Autoclave by placing the bunch in a beaker sealed with aluminium foil.
air dry in the warm room overnight.

I actually read this another procedure from a book which involves detergents. I will send you the procedure once I find it.

But my procedure has been working well so far

MS

#28 repeatcell

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Posted 19 October 2009 - 02:44 PM

Hi!

I moved to a new lab and have to set-up things for IF. Can any of you guys tell me the vendor and catalog number of coverslips that fit-in to a 24-well plate, as well as the standard glass slides with frosted-end?

Thank you in advance,

#29 criscastells

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Posted 11 May 2010 - 12:05 PM

We normally autoclave them and after dry them in the heater.
The problem is that if they are superimposed they probably will be harnessed, so it is important to sort them in order to maintain them separated.

We use tips boxes because they have holes and it is easier to separate the cover slips from the surface

#30 anokhi

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Posted 16 May 2010 - 09:26 AM

we have an autoclave with two cycles: one that's just for liquids and other for dry things, such as coverslips, forceps, etc. Cosmetic Surgery
Boob Job


The option for dry materials, has a drying cycle at the end of its sterilization cycle. that eliminates the "drying step".

wash them in surfactant to remove grease, 70% ethanol and flame. The UV is silly- it's pretty good at blocking.




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