FYI, TAP sells translucent amber-coloured acrylic, in 1/8" and 1/4" thicknesses.
http://www.tapplastics.com/shop/product.php?pid=341&
I like the blue LEDs idea too. I was just going to take an animator's
lightbox (a friend is getting rid of one) and replace the bulb with a
UV bulb, but LEDs are certainly cheaper.
--mlp
On Thu, Oct 23, 2008 at 3:34 PM, Tom Knight <t...@csail.mit.edu> wrote:
>
> If we're doing this, it would be good to do a version with a set of
> blue LEDs for under-gel illumination and an amber plastic cover for
> viewing the gel. Both ethidium bromide and the sybr-safe and
> sybr-green gel bands would be very visible with this illumination.
> Done correctly, the illuminator and amber cover could be used to cut
> out bands as well, without the gel box being present. We should
> experiment with LED and plexiglass color to determine which ones work.
> We might be able to arrange to use either the lab laser cutter or the
> water jet cutter to fabricate these in reasonable volumes. Does anyone
> know the stability of the monel wire? The pro boxes use platinum wire
> electrodes, which are essential indestructible, though a little pricey.
>
> On Oct 23, 2008, at 11:21 AM, Mackenzie Cowell wrote:
>
>> This thread is awesome :) Let's build one like Meredith's and blog it
>> at DIYbio.org
>>
>> On Thu, Oct 23, 2008 at 12:27 AM, Peter Olson <pe...@peabo.com> wrote:
>>>
>>> Source of monel wire:
>>>
>>> http://www.shopwiki.com/detail/
>>> d=20Lb_14%22_Monel_Wire_(30pc_per_tube)/jumpToFirst=t/
>>>
>>> On Oct 22, 10:09 pm, "Meredith L. Patterson" <clonea...@gmail.com>
>>> wrote:
>>> > I went to TAP Plastics in San Francisco and gave them the sizes
>>> > specified in the PDF linked below. They cut the acrylic exactly to
>>> > size (even the half-inch pegs), and the total came to just over
>>> $20.
>>> > They will do mail-order. Putting the pieces together with acrylic
>>> > cement took about an hour and a half. Do make sure to seal the
>>> seams
>>> > on both sides -- the box needs to be watertight! The PDF shows a
>>> > syringe with a curved plastic tip for the cement applicator. TAP
>>> has
>>> > these, though I used a syringe with a blunt metal needle and that
>>> > worked very well.
>>> >
>>> > If you spill some cement, just let it dry -- it will smear if you
>>> try
>>> > to wipe it off.
>>> >
>>> > You could probably get away with just making the gel carrier from
>>> > acrylic, and using a Tupperware and some terminal posts to seat the
>>> > electrodes. If you go that route, you'll probably want to seal the
>>> > holes for the electrode posts with hot glue or epoxy.
>>> >
>>> > They didn't have the Teflon, but it sounds like Mackenzie et al did
>>> > pretty well with a used Charlie Card. You could also cut the comb
>>> from
>>> > a Blockbuster Video card or any other smooth plastic wallet-sized
>>> > card.
>>> >
>>> > Radio Shack's banana plugs aren't quite the right size, but I got
>>> it
>>> > to fit together okay with a pair of stackable banana plugs and a
>>> pair
>>> > of screw-in posts. I'll see if I can find my camera's battery and
>>> take
>>> > a picture.
>>> >
>>> > Do use steel wire, as copper will stain the gel blue.
>>> >
>>> > --mlp
>>> >
>>> > On Wed, Oct 22, 2008 at 6:08 PM, Jason Kelly
>>> <ja...@ginkgobioworks.com> wrote:
>>> >
>>> > > that's neat. gel boxes are a complete rip off.
>>> >
>>> > > Meredith, which plastic supplier did you use - and can you post
>>> the
>>> > > specifications you sent them?
>>> >
>>> > > thanks,
>>> > > jason
>>> >
>>> > > p.s. apologies for the several emails to follow in a row --
>>> > > apparently, i wasnt properly registered for the list so was just
>>> > > sending mail into the ether for last week or two.
>>> >
>>> > > On Tue, Oct 21, 2008 at 3:28 PM, Meredith L. Patterson
>>> > > <clonea...@gmail.com> wrote:
>>> >
>>> > >> The University of Utah's gel box is quite easy to build (well,
>>> to be
>>> > >> fair, I did get the plastic supplier to cut the pieces for me)
>>> and
>>> > >> cost about $30 in parts all told.
>>> >
>>> > >>http://learn.genetics.utah.edu/content/labs/gel/gelchamber/
>>> >
>>> > >> --mlp
>>> >
>>> > >> On Tue, Oct 21, 2008 at 12:22 PM, Mackenzie Cowell
>>> <macow...@gmail.com> wrote:
>>> > >>> Great link, Jason.
>>> >
>>> > >>> I did a quick search for proposals that included the word
>>> "DNA". The
>>> > >>> average donation requested was something like $400. This
>>> usually was for a
>>> > >>> thermocycler and and some kind of PCR reagents or DNA
>>> extraction kit.
>>> >
>>> > >>> I agree wholeheartedly that we could do way better than $400.
>>> >
>>> > >>> Additionally, many of the teachers cited the physical,
>>> hands-on experience
>>> > >>> that hardware provides as the main reason for wanting it for
>>> their class.
>>> > >>> But think about how cool it would be for kids to be *building*
>>> their own
>>> > >>> tools and then using them to do PCR. Man, I for one felt like
>>> I got a
>>> > >>> better understanding of gel electrophoresis when we tried to
>>> do it for $20
>>> > >>> with tupperware and agar-agar.
>>> >
>>> > >>> So I think there is a huge potential for us to develop a
>>> robust, diy biotech
>>> > >>> lesson plans for high school biology classes.
>>> >
>>> > >>> We could start with the gel electrophoresis protocol.
>>> >
>>> > >>> Mac
>>> >
>>> > >>> On Mon, Oct 20, 2008 at 3:08 PM, Jason Morrison
>>> <jason.p.morri...@gmail.com>
>>> > >>> wrote:
>>> >
>>> > >>>> The following might be interesting for learning what kinds of
>>> > >>>> supplies/labs/equipment should be cheaper to help promote
>>> biology research
>>> > >>>> in schools, and I think high schools' budgets are interesting
>>> to consider,
>>> > >>>> when we are considering DIY budgetary constraints.
>>> >
>>> >
>>> >>>>http://www.donorschoose.org/donors/search.html?
>>> sourceid=qs&keywords=b...
>>> >
>>> > >>>> "DonorsChoose.org is a simple way to provide students in need
>>> with
>>> > >>>> resources that our public schools often lack. At this
>>> not-for-profit web
>>> > >>>> site, teachers submit project proposals for materials or
>>> experiences their
>>> > >>>> students need to learn. These ideas become classroom reality
>>> when concerned
>>> > >>>> individuals, whom we call Citizen Philanthropists, choose
>>> projects to fund."
>>> >
>>> > >>>> Example:
>>> >
>>> >>>>http://www.donorschoose.org/donors/proposal.html?id=195775&zone=0
>>> > >>>> $284 for 4 DNA extraction kits? Not sure what's included,
>>> perhaps
>>> >
>>> >>>>www.carolina.com/text/teacherresources/instructions/biotech/
>>> dna_neckl...
>>> > >>>> ?
>>> >
>>> > >>>> I think we can do better!
>>> >
>>> > >>>> -Jason
>>> >
>>> > >>>> --
>>> > >>>> Jason Morrison
>>> > >>>> jason.p.morri...@gmail.com
>>> > >>>>http://jayunit.net
>>> > >>>> (585) 216-5657
>>>
>>
>>
>> >
>
>
> >
>
jason
--
http://jayunit.net
(585) 216-5657
(Sent from my mobile)
On Oct 24, 2008, at 10:56 PM, "Jason Kelly" <ja...@ginkgobioworks.com>
wrote:
>