RE: [Histonet] Fluorescence-filters

2012-06-06 Thread Jonathan Cremer
...@gmail.com] Verzonden: woensdag 6 juni 2012 1:31 Aan: histonet@lists.utsouthwestern.edu Onderwerp: Re: [Histonet] Fluorescence-filters Can you do fluorescence with LED? (That may be a stupid question, as I always thought LED was just for brightfield). Emily You see a peanut, day's off to a good start

RE: [Histonet] Fluorescence-filters

2012-06-06 Thread Sue Hunter
Of Emily Sours Sent: Tuesday, June 05, 2012 7:32 PM To: histonet@lists.utsouthwestern.edu Subject: Re: [Histonet] Fluorescence-filters Can you do fluorescence with LED? (That may be a stupid question, as I always thought LED was just for brightfield). Emily You see a peanut, day's off to a good

Re: [Histonet] Fluorescence-filters

2012-06-05 Thread Rene J Buesa
Hi Gudrun: What you wrote is news for me. Dichroic filters with specific lambda transmission of good quality can be used for years. The filtersĀ I used were Ernst Leitz, from the early 1950's and the transmission intensity remained strong. We checked the life duration of the mercury lamp, but not

RE: [Histonet] Fluorescence-filters

2012-06-05 Thread Anatoli Gleiberman
Filters are usually very stable. What is burning out are fiber optic cables that are present in some illumination systems such as X-Cite in Zeiss microscopes. These optical fiber cables should be replaced after 2000 hours. Anatoli Gleiberman, PhD Director of Histopathology Cleveland Biolabs,

Re: [Histonet] Fluorescence-filters

2012-06-05 Thread Mark Tarango
Hi Gudrun, i read about 15 ALK cases a week. If you are seeing a lot of collagen fibers around the tumor cells, I'd try increasing the digestion time of your pepsin (especially if they were fixed for longer than usual). Before altering the pretreatment though, you would want to make sure that

Re: [Histonet] Fluorescence-filters

2012-06-05 Thread Emily Sours
Wow, that was detailed and interesting!! I didn't know microscopes could even use LED, does that require a different setup, or just a different bulb? Emily You see a peanut, day's off to a good start; you witness some soil it's a jamboree for Vince Noir. --Howard Moon, in Charlie, The Mighty

Re: [Histonet] Fluorescence-filters

2012-06-05 Thread Emily Sours
Can you do fluorescence with LED? (That may be a stupid question, as I always thought LED was just for brightfield). Emily You see a peanut, day's off to a good start; you witness some soil it's a jamboree for Vince Noir. --Howard Moon, in Charlie, The Mighty Boosh