We are about to release an all-LED based UV microscope for automated scanning of 96-well plates. Please contact me if you are interested.
Thanks, V. Nagarajan JAN Scientific, Inc. Seattle, WA, USA. -----Original Message----- From: CCP4 bulletin board [mailto:[EMAIL PROTECTED] On Behalf Of Li Zhijie Sent: Thursday, May 15, 2008 9:36 AM To: CCP4BB@JISCMAIL.AC.UK Subject: Re: [ccp4bb] UV light source for protein xtal detection Hello, You may want to have a look at the UV LEDs, which should be the cheapest option if you only need a specific wavelenth. I found this on google: http://www.3dzled.com/other.html. It seems that they can make 280nM LEDs. It is interesting to note that they also said these LEDs' "Wavelength tolerance is usually within +/- 5 nm. For example 254 nm would be 249 nm to 259 nm and 415 nm would be 410 nm to 415 nm or 415 nm to 420 nm" - apparently not as pure as those generated by monochrometers, but should be good enough for quatitating protein or exciting some fluorophores. I wonder if the microscope makers would ever consider using these instead of those multi-thousand $ light sources. One more thing: do not forget that 280nm UV is extremely harmful to human eyes and skin. Zhijie Li ----- Original Message ----- From: "Torres-Larios Alfredo" <[EMAIL PROTECTED]> To: <CCP4BB@JISCMAIL.AC.UK> Sent: Wednesday, May 14, 2008 7:59 PM Subject: [ccp4bb] UV light source for protein xtal detection > Dear all, > > Here's another non CCP4 question: does anyone know a cheap alternative to > set up a UV source at 280 nm? I'd really like to have one :), but I really > don't have the $20K Dlls needed to buy a UV/white light source from the > crystallographic vendors :(. > > Thanks so much in advance for your answers, Alfredo. > > Alfredo Torres-Larios, PhD > Assistant Professor > Instituto de Fisiologia Celular, UNAM. > Ciudad Universitaria, Mexico > > ---------------------------------------------------------------- > This message was sent using IMP, the Internet Messaging Program. > > > -- > No virus found in this incoming message. > Checked by AVG Free Edition. > Version: 7.5.446 / Virus Database: 269.23.16/1077 - Release Date: > 5/11/2008 12:00 AM > >
