Dear participants,
I'm using Atto647N as a dye for FCS. Does anyone have experience with that dye combined with that technique? I would be really glad if someone could tell me his/her opinion regarding that dye in FCS concerning measurements in cells! Greetings, Roman -- -- Roman Veith Diplom-Biologe Institut für physikalische und theoretische Chemie AG Biophysikalische Chemie Universität Bonn Wegelerstraße 12 53115 Bonn Tel-Nr.: 0228-733089 Fax-Nr.: 0228-739424 http://www.thch.uni-bonn.de/pc/kubitscheck/ |
Hi:
This is a pretty basic and simple question. I need some advice about rounding up some samples to use in an elementary light microscopy class that includes basic fluorescence. I am at a community college and my background is in EM and brightfield LM. I have a passing familiarity with confocal et al but not enough to know much. I maintained a confocal, but never ran experiments or prepared much in the way of samples. Now I have to get something together to demonstrate the fundamentals of fluorescence to students in a new job. I have been relying on chlorophyll autofluorescence up til now, but would like to add anything that would be easy to do. We have a simple scope with filters for FITC, rhodamine, and DAPI, I think. What would be some fool proof, easy to get samples to try? In addition, I would eventually like to add some kind of confocal experience to this class, any ideas about where to find an inexpensive system would be great. Thanks Jon San Joaquin Delta College Stockton, CA 95207 [hidden email] |
Jon,
I recommend brine shrimp 3 days old or older, fixed with formalin and stained with rhodamine-phalloidin, which shows up the muscles nicely. I use this as the first sample to look at in my confocal microscopy class. Brine shrimp are always available - just add water. The biggest up front cost in the rhodamine-phalloidin, but you can keep it for years. Phil Hertzler At 11:45 AM 11/14/2008, you wrote: Hi: Philip L. Hertzler Associate Professor Central Michigan University Dept. of Biology, Brooks Hall 217 Mount Pleasant, MI 48859 Phone: (989) 774-2393 Fax: (989) 774-3462 Email: [hidden email] "Teachers should be paid more." - Sarah Palin, Vice-presidential debate, 10/2/2008 "It is common sense to take a method and try it. If it fails, admit it frankly and try another. But above all, try something." - Franklin D. Roosevelt "Not everything that counts can be counted, and not everything that can be counted counts." - attributed to Albert Einstein |
In reply to this post by Jonathan M Krupp
To teach new users the basics of how our confocal works (before we get to
working with their samples) I use a kimwipe that has been marked with several different fluorescent highlighters. I mount a piece of the kimwipe to a slide with permount under a #1.5 coverslip and it lasts almost forever. It's incredibly bright, moderately thick (~90um), cheap to make, and 3D rotations using a 10x objective show the fibers very nicely. This teaching slide idea was inspired by my colleagues "up the road" at AZ State University with their Paper project < http://paperproject.org/>. The kimwipe slide is not very effective to show two different wavelengths, but it lets me talk about spectral bleedthrough/artifactual colocalization issues and why the longer wavelength channel is usually noisier (PMT gain is often twice that of the shorter wavelength). The Invitrogen Fluocells slides (no commercial interest) are beautiful for demos, but they are expensive. H&E stained histologic sections fluoresce and I've been told that diatoms (good for demonstrating DIC if your confocal has all the parts for it) are autofluorescent. Have fun. Doug ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Douglas W. Cromey, M.S. - Assistant Scientific Investigator Dept. of Cell Biology & Anatomy, University of Arizona 1501 N. Campbell Ave, Tucson, AZ 85724-5044 USA office: AHSC 4212 email: [hidden email] voice: 520-626-2824 fax: 520-626-2097 http://swehsc.pharmacy.arizona.edu/exppath/ Home of: "Microscopy and Imaging Resources on the WWW" -----Original Message----- From: Confocal Microscopy List [mailto:[hidden email]] On Behalf Of Jonathan M Krupp Sent: Friday, November 14, 2008 9:46 AM To: [hidden email] Subject: Practice samples Hi: This is a pretty basic and simple question. I need some advice about rounding up some samples to use in an elementary light microscopy class that includes basic fluorescence. I am at a community college and my background is in EM and brightfield LM. I have a passing familiarity with confocal et al but not enough to know much. I maintained a confocal, but never ran experiments or prepared much in the way of samples. Now I have to get something together to demonstrate the fundamentals of fluorescence to students in a new job. I have been relying on chlorophyll autofluorescence up til now, but would like to add anything that would be easy to do. We have a simple scope with filters for FITC, rhodamine, and DAPI, I think. What would be some fool proof, easy to get samples to try? In addition, I would eventually like to add some kind of confocal experience to this class, any ideas about where to find an inexpensive system would be great. Thanks Jon San Joaquin Delta College Stockton, CA 95207 [hidden email] |
In reply to this post by Jonathan M Krupp
I saw that someone mentioned H&E stained sections - eosin
does fluoresce nicely under the filters you have (well, not so much with the DAPI). If you can't get actual stained tissue slices, you can just mix any fluorescent dye into mounting media. Some plastics fluoresce; Kimwipes are great, too - although it never occurred to me to make a permanent mount (I'm going to do that this morning). if you check the archives there was a discussion about making pollen slides earlier this year - those will fluoresce & can be done "on the cheap". Carolina Biological sells permanent slides of all kinds of things; there are other biological supply places but I can't think of any right now. Tamara On Fri, 14 Nov 2008 08:45:52 -0800 Jonathan M Krupp <[hidden email]> wrote: > Hi: > > This is a pretty basic and simple question. I need some >advice about rounding up some samples to use in an >elementary light microscopy class that includes basic >fluorescence. > > I am at a community college and my background is in EM >and brightfield LM. I have a passing familiarity with >confocal et al but not enough to know much. I maintained >a confocal, but never ran experiments or prepared much in >the way of samples. Now I have to get something together >to demonstrate the fundamentals of fluorescence to >students in a new job. > > I have been relying on chlorophyll autofluorescence up >til now, but would like to add anything that would be >easy to do. We have a simple scope with filters for FITC, >rhodamine, and DAPI, I think. What would be some fool >proof, easy to get samples to try? > > In addition, I would eventually like to add some kind of >confocal experience to this class, any ideas about where >to find an inexpensive system would be great. > > Thanks > > Jon > San Joaquin Delta College > Stockton, CA 95207 > [hidden email] *************************** Tamara Howard Cell Biology & Physiology UNM-HSC Albuquerque, NM *************************** |
I think some CLSM vendors use Convallaria root sections as test preparations for their
scopes and also sell them. :-) Torsten |
In reply to this post by Jonathan M Krupp
Hi Jon, the pollen grains will fluoresce nicely and are cheap and easy
to make. You can get plastic fluorescent slides from Chroma for free which are good for maintenance/QC. In my opinion the Molecular Probes slides are expensive, but well worth it. I have imaged that slide a thousand times! It always gets a "wow" from the trainee. Pollen grains are boring! (unless maybe you explode them with your 2P laser). We have a Zeiss LSM310 Confocal for sale! Let me know if you want to discuss the particulars. Cheers, Brian D Armstrong PhD Light Microscopy Core Manager Beckman Research Institute City of Hope Dept of Neuroscience 1450 E Duarte Rd Duarte, CA 91010 626-256-4673 x62872 http://www.cityofhope.org/research/support/Light-Microscopy-Digital-Imag ing/Pages/default.aspx -----Original Message----- From: Confocal Microscopy List [mailto:[hidden email]] On Behalf Of Jonathan M Krupp Sent: Friday, November 14, 2008 8:46 AM To: [hidden email] Subject: Practice samples Hi: This is a pretty basic and simple question. I need some advice about rounding up some samples to use in an elementary light microscopy class that includes basic fluorescence. I am at a community college and my background is in EM and brightfield LM. I have a passing familiarity with confocal et al but not enough to know much. I maintained a confocal, but never ran experiments or prepared much in the way of samples. Now I have to get something together to demonstrate the fundamentals of fluorescence to students in a new job. I have been relying on chlorophyll autofluorescence up til now, but would like to add anything that would be easy to do. We have a simple scope with filters for FITC, rhodamine, and DAPI, I think. What would be some fool proof, easy to get samples to try? In addition, I would eventually like to add some kind of confocal experience to this class, any ideas about where to find an inexpensive system would be great. Thanks Jon San Joaquin Delta College Stockton, CA 95207 [hidden email] --------------------------------------------------------------------- SECURITY/CONFIDENTIALITY WARNING: This message and any attachments are intended solely for the individual or entity to which they are addressed. This communication may contain information that is privileged, confidential, or exempt from disclosure under applicable law (e.g., personal health information, research data, financial information). Because this e-mail has been sent without encryption, individuals other than the intended recipient may be able to view the information, forward it to others or tamper with the information without the knowledge or consent of the sender. If you are not the intended recipient, or the employee or person responsible for delivering the message to the intended recipient, any dissemination, distribution or copying of the communication is strictly prohibited. If you received the communication in error, please notify the sender immediately by replying to this message and deleting the message and any accompanying files from your system. If, due to the security risks, you do not wish to receive further communications via e-mail, please reply to this message and inform the sender that you do not wish to receive further e-mail from the sender. --------------------------------------------------------------------- |
In reply to this post by Jonathan M Krupp
Jonathan,
You can order all kinds of prepared fluorescent slides from Molecular Probes/Invitrogen. >>> Jonathan M Krupp <[hidden email]> 11/14/2008 11:45 AM >>> Hi: This is a pretty basic and simple question. I need some advice about rounding up some samples to use in an elementary light microscopy class that includes basic fluorescence. I am at a community college and my background is in EM and brightfield LM. I have a passing familiarity with confocal et al but not enough to know much. I maintained a confocal, but never ran experiments or prepared much in the way of samples. Now I have to get something together to demonstrate the fundamentals of fluorescence to students in a new job. I have been relying on chlorophyll autofluorescence up til now, but would like to add anything that would be easy to do. We have a simple scope with filters for FITC, rhodamine, and DAPI, I think. What would be some fool proof, easy to get samples to try? In addition, I would eventually like to add some kind of confocal experience to this class, any ideas about where to find an inexpensive system would be great. Thanks Jon San Joaquin Delta College Stockton, CA 95207 [hidden email]
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In reply to this post by Jonathan M Krupp
Has anyone labeled live brine shrimp with vital stains for practice
specimens? Regards, Glen Glen MacDonald Core for Communication Research Virginia Merrill Bloedel Hearing Research Center Box 357923 University of Washington Seattle, WA 98195-7923 USA (206) 616-4156 [hidden email] ****************************************************************************** The box said "Requires WindowsXP or better", so I bought a Macintosh. ****************************************************************************** On Nov 14, 2008, at 9:00 AM, Phil Hertzler wrote: > Jon, > > I recommend brine shrimp 3 days old or older, fixed with formalin > and stained with rhodamine-phalloidin, which shows up the muscles > nicely. I use this as the first sample to look at in my confocal > microscopy class. Brine shrimp are always available - just add > water. The biggest up front cost in the rhodamine-phalloidin, but > you can keep it for years. > > Phil Hertzler > > At 11:45 AM 11/14/2008, you wrote: >> Hi: >> >> This is a pretty basic and simple question. I need some advice >> about rounding up some samples to use in an elementary light >> microscopy class that includes basic fluorescence. >> >> I am at a community college and my background is in EM and >> brightfield LM. I have a passing familiarity with confocal et al >> but not enough to know much. I maintained a confocal, but never ran >> experiments or prepared much in the way of samples. Now I have to >> get something together to demonstrate the fundamentals of >> fluorescence to students in a new job. >> >> I have been relying on chlorophyll autofluorescence up til now, but >> would like to add anything that would be easy to do. We have a >> simple scope with filters for FITC, rhodamine, and DAPI, I think. >> What would be some fool proof, easy to get samples to try? >> >> In addition, I would eventually like to add some kind of confocal >> experience to this class, any ideas about where to find an >> inexpensive system would be great. >> >> Thanks >> >> Jon >> San Joaquin Delta College >> Stockton, CA 95207 >> [hidden email] > > Philip L. Hertzler > Associate Professor > Central Michigan University > Dept. of Biology, Brooks Hall 217 > Mount Pleasant, MI 48859 > > Phone: (989) 774-2393 > Fax: (989) 774-3462 > Email: [hidden email] > > "Teachers should be paid more." > - Sarah Palin, Vice-presidential debate, 10/2/2008 > > "It is common sense to take a method and try it. If it fails, admit > it frankly and try another. But above all, try something." > - Franklin D. Roosevelt > > "Not everything that counts can be counted, and not everything that > can be counted counts." > - attributed to Albert Einstein |
In reply to this post by Jonathan M Krupp
Jon,
Plants are full of autofluorescence. If you cut a section (a careful hand section is fine) of a stem or root, most times you will see lovely fluorescence. What is nice about this is that you can have students collect their own matieral, try different places on the plant, aged material, etc etc. It takes a little knack to cut nice smooth hand sections so they coverslip up nice and show good images near the coverslip. You don't have to stain at all, just mount and observe. There can also be nice differences at different wavelengths. Have fun, Tobias At 8:45 AM -0800 11/14/08, Jonathan M Krupp wrote: >Hi: > >This is a pretty basic and simple question. I need some advice about >rounding up some samples to use in an elementary light microscopy >class that includes basic fluorescence. > >I am at a community college and my background is in EM and >brightfield LM. I have a passing familiarity with confocal et al but >not enough to know much. I maintained a confocal, but never ran >experiments or prepared much in the way of samples. Now I have to >get something together to demonstrate the fundamentals of >fluorescence to students in a new job. > >I have been relying on chlorophyll autofluorescence up til now, but >would like to add anything that would be easy to do. We have a >simple scope with filters for FITC, rhodamine, and DAPI, I think. >What would be some fool proof, easy to get samples to try? > >In addition, I would eventually like to add some kind of confocal >experience to this class, any ideas about where to find an >inexpensive system would be great. > >Thanks > >Jon >San Joaquin Delta College >Stockton, CA 95207 >[hidden email] -- _ ____ __ ____ / \ / / \ / \ \ Tobias I. Baskin / / / / \ \ \ Biology Department /_ / __ /__ \ \ \__ 611 N. Pleasant St. / / / \ \ \ University of Massachusetts / / / \ \ \ Amherst, MA, 01003 / / ___ / \ \__/ \ ____ www.bio.umass.edu/biology/baskin Voice: 413 - 545 - 1533 Fax: 413 - 545 - 3243 |
In reply to this post by Jonathan M Krupp
Dear Jon,
A lot of house hold products show very bride fluorescence. If you take a white T-shirt, the whitener in the washing powder will make the contton fibers bride fluorescent for UV. Most textile dyes are fluorescent also, so you can have choice. Pollen from plants are also fluorescent. Bye e.g. lilies, give them to your love, but take the pollen of before. This will also improve the shelf-live of your flowers when put in water. To prepare these pollen, let them dry, and mount in immersion oil or non fluorescent glycerine. Finally the paper of euro's and also very frequently some stamps fluoresce. You can check that by illuminating them with blacklight as used in the disco. It is amazing to test all different products, because even the human hair, washed with colored shampoo, will show autofluorescence coming from the dye in the shampoo, on the other hand, hair from wild animals will in general not fluoresce. Bye, Patrick Dep. Molecular Biotechnology Ghent University Coupure links 653 9000 GENT (Belgium) Quoting Jonathan M Krupp <[hidden email]>: > Hi: > > This is a pretty basic and simple question. I need some advice about > rounding up some samples to use in an elementary light microscopy class > that includes basic fluorescence. > > I am at a community college and my background is in EM and brightfield > LM. I have a passing familiarity with confocal et al but not enough to > know much. I maintained a confocal, but never ran experiments or > prepared much in the way of samples. Now I have to get something > together to demonstrate the fundamentals of fluorescence to students in > a new job. > > I have been relying on chlorophyll autofluorescence up til now, but > would like to add anything that would be easy to do. We have a simple > scope with filters for FITC, rhodamine, and DAPI, I think. What would > be some fool proof, easy to get samples to try? > > In addition, I would eventually like to add some kind of confocal > experience to this class, any ideas about where to find an inexpensive > system would be great. > > Thanks > > Jon > San Joaquin Delta College > Stockton, CA 95207 > [hidden email] -- Dep. Moleculaire Biotechnologie Coupure links 653 B 9000 GENT tel 09 264 5969 fax 09 264 6219 |
Klughammer Industrie GmbH |
Dear Jon,
why don't you use curry powder? It has nice fluorescence which never bleaches. Anneliese Schmaus Klughammer Bio GmbH 2008/11/15 Patrick Van Oostveldt <[hidden email]>: > Dear Jon, > > A lot of house hold products show very bride fluorescence. If you take a > white T-shirt, the whitener in the washing powder will make the contton > fibers bride fluorescent for UV. > Most textile dyes are fluorescent also, so you can have choice. > > Pollen from plants are also fluorescent. Bye e.g. lilies, give them to your > love, but take the pollen of before. This will also improve the shelf-live > of your flowers when put in water. To prepare these pollen, let them dry, > and mount in immersion oil or non fluorescent glycerine. > > Finally the paper of euro's and also very frequently some stamps fluoresce. > You can check that by illuminating them with blacklight as used in the > disco. > > It is amazing to test all different products, because even the human hair, > washed with colored shampoo, will show autofluorescence coming from the dye > in the shampoo, on the other hand, hair from wild animals will in general > not fluoresce. > > Bye, > > Patrick > Dep. Molecular Biotechnology > Ghent University > Coupure links 653 > 9000 GENT (Belgium) > > Quoting Jonathan M Krupp <[hidden email]>: > >> Hi: >> >> This is a pretty basic and simple question. I need some advice about >> rounding up some samples to use in an elementary light microscopy class >> that includes basic fluorescence. >> >> I am at a community college and my background is in EM and brightfield >> LM. I have a passing familiarity with confocal et al but not enough to >> know much. I maintained a confocal, but never ran experiments or >> prepared much in the way of samples. Now I have to get something >> together to demonstrate the fundamentals of fluorescence to students in >> a new job. >> >> I have been relying on chlorophyll autofluorescence up til now, but >> would like to add anything that would be easy to do. We have a simple >> scope with filters for FITC, rhodamine, and DAPI, I think. What would >> be some fool proof, easy to get samples to try? >> >> In addition, I would eventually like to add some kind of confocal >> experience to this class, any ideas about where to find an inexpensive >> system would be great. >> >> Thanks >> >> Jon >> San Joaquin Delta College >> Stockton, CA 95207 >> [hidden email] > > > > -- > Dep. Moleculaire Biotechnologie > Coupure links 653 > B 9000 GENT > > tel 09 264 5969 > fax 09 264 6219 > |
In reply to this post by Jonathan M Krupp
Jon
You may find the confocal/imaging class lectures I give here at Purdue useful for your course. You can find the class lectures at http://www.cyto.purdue.edu/class/bms524/index.htm and more at http://www.cyto.purdue.edu/flowcyt/educate/pptslide.htm some were recorded using Adobe connect all have the original PPTs there to download which you may find useful. We also have a practical class - if you would like that materials you could email me directly kind regards paul Jonathan M Krupp wrote: > Hi: > > This is a pretty basic and simple question. I need some advice about > rounding up some samples to use in an elementary light microscopy class > that includes basic fluorescence. > > I am at a community college and my background is in EM and brightfield > LM. I have a passing familiarity with confocal et al but not enough to > know much. I maintained a confocal, but never ran experiments or > prepared much in the way of samples. Now I have to get something > together to demonstrate the fundamentals of fluorescence to students in > a new job. > > I have been relying on chlorophyll autofluorescence up til now, but > would like to add anything that would be easy to do. We have a simple > scope with filters for FITC, rhodamine, and DAPI, I think. What would be > some fool proof, easy to get samples to try? > > In addition, I would eventually like to add some kind of confocal > experience to this class, any ideas about where to find an inexpensive > system would be great. > > Thanks > > Jon > San Joaquin Delta College > Stockton, CA 95207 > [hidden email] -- J. Paul Robinson SVM Professor of Cytomics Professor of Immunopharmacology & Biomedical Engineering Director, Purdue University Cytometry Laboratories Past-President, International Society for Analytical Cytology (now International Society for Advancement of Cytometry) Purdue University Cytometry Laboratories Bindley Bioscience Center 1203 West State Street Discovery Park, Purdue University West Lafayette, IN 47907-2057 Ph (765) 494 0757; Fax (765) 494 0517 email: [hidden email] www.cyto.purdue.edu Track Paul's climb in the Himalayas September 2008 http://www.cyto.purdue.edu/trackpaul/ and see the Manaslu photos at http://picasaweb.google.com/climbingabc Join ISAC - www.isac-net.org Change lives today - www.cytometryforlife.org |
In reply to this post by Tobias Baskin
Hi Jon,
As Tobias says, plants are great for their variety of autofluorescence. I cut hand sections (from a couple of bushes just outside the building) in front of school groups and put them straight under the fluorescence or confocal microscope. UV/405nm illumination will give a big variety of fluorescence from cell walls and cell contents. There are also cheap stains like rhodamine B, berberine sulfate, Schiff's reagent, calcofluor white (the brightener in washing powder) that you can use, which mainly stain cell walls. Another cool thing to do is get a cube of either uranium glass or fluorescent plastic and put this under the objective to show the light path and explain the focal plane - or fill a cuvette with fluorescent solution. Does a much better job than diagrams on a piece of paper! cheers, Rosemary On 15/11/08 5:56 PM, "Tobias Baskin" <[hidden email]> wrote: > Jon, > Plants are full of autofluorescence. If you cut a section (a > careful hand section is fine) of a stem or root, most times you will > see lovely fluorescence. What is nice about this is that you can have > students collect their own matieral, try different places on the > plant, aged material, etc etc. It takes a little knack to cut nice > smooth hand sections so they coverslip up nice and show good images > near the coverslip. You don't have to stain at all, just mount and > observe. There can also be nice differences at different wavelengths. > Have fun, > Tobias > > > At 8:45 AM -0800 11/14/08, Jonathan M Krupp wrote: >> Hi: >> >> This is a pretty basic and simple question. I need some advice about >> rounding up some samples to use in an elementary light microscopy >> class that includes basic fluorescence. >> >> I am at a community college and my background is in EM and >> brightfield LM. I have a passing familiarity with confocal et al but >> not enough to know much. I maintained a confocal, but never ran >> experiments or prepared much in the way of samples. Now I have to >> get something together to demonstrate the fundamentals of >> fluorescence to students in a new job. >> >> I have been relying on chlorophyll autofluorescence up til now, but >> would like to add anything that would be easy to do. We have a >> simple scope with filters for FITC, rhodamine, and DAPI, I think. >> What would be some fool proof, easy to get samples to try? >> >> In addition, I would eventually like to add some kind of confocal >> experience to this class, any ideas about where to find an >> inexpensive system would be great. >> >> Thanks >> >> Jon >> San Joaquin Delta College >> Stockton, CA 95207 >> [hidden email] > > > -- > _ ____ __ ____ > / \ / / \ / \ \ Tobias I. Baskin > / / / / \ \ \ Biology Department > /_ / __ /__ \ \ \__ 611 N. Pleasant St. > / / / \ \ \ University of Massachusetts > / / / \ \ \ Amherst, MA, 01003 > / / ___ / \ \__/ \ ____ > www.bio.umass.edu/biology/baskin > Voice: 413 - 545 - 1533 Fax: 413 - 545 - 3243 |
Grace Chojnowski-2 |
*****
To join, leave or search the confocal microscopy listserv, go to: http://lists.umn.edu/cgi-bin/wa?A0=confocalmicroscopy Post images on http://www.imgur.com and include the link in your posting. ***** We have a new position in our facility for a microscopist to join our dynamic team in the Flow Cytometry and Imaging Facility at QIMR Berghofer Research Institute. For more details please go to :- http://www.qimrberghofer.edu.au/page/Careers/Positions_vacant/ Reference Number 11624 Grace Chojnowski | Flow Cytometry and Imaging Facility Manager QIMR Berghofer Medical Research Institute t +61 7 3362 0314 | m +61 414 956 752 | f +61 7 3362 0107 e [hidden email] | www.qimr.edu.au 300 Herston Road, Herston QLD 4006 Locked Bag 2000 Royal Brisbane Hospital, QLD 4029 |
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