We were looking at these, they look like fun. https://www.wetkeys.com/Soft-touch-Comfort-Hygienic-Washable-Keyboard-USB-p/kbstfc106-w.htm
On Tue, May 5, 2020, 7:20 PM James Holton <jmhol...@lbl.gov> wrote: > All joking aside, there has been a furor of attention on UV-based > disinfection of late. Some of it is not entirely crazy. I.E. Columbia > University’s Center for Radiological Research has put forward the idea of > illuminating occupied public areas with ultra-narrow-band UV-C (222 nm). > https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5552051/ > > Mind you, UV-C normally covers 100 - 280 nm, and the PPE requirements for > that (at LBNL at least) are extensive: polycarbonate safety glasses and > face shield with a mark U6 (UV protection), long-sleeved clothing, and > gloves. Basically: do not expose skin! > > The idea behind using monochromatic 222 nm radiation is that it is at the > edge of a very steep increase in the absorption of water, protein, and > other biologicals. Penetration depths are hard to estimate because of the > steep slope, but they are on the order of 1 micron. So, smaller than a > typical mamalian cell, but bigger than a bacterium or virus. The paper > above did not have any human subjects, nor did it discuss how to deal with > all the ozone, but the results are intruiging. Needs further study. > > Personally, I think this would probably fog your corneas and perhaps burn > the thin skin on lips and other exposed mucosa. Hair I'd expect to > embrittle and fall apart eventually. Yes, hair is 40 microns thick and the > penetration depth is 1 micron, but photon's don't "stop" at the penetration > depth. 36% of them go deeper. Plastic in keyboards too would probably > bleach and flake with prolonged exposure. Ever seen a keyboard left out in > the sun for a few weeks? I'd worry a bit about this micro-damage creating > crevices where bugs could hide. > > I encourage you to bring this up with your Health and Safety people, but > make sure they are sitting down first. > > -James Holton > MAD Scientist > > On 4/29/2020 12:41 PM, Andrea Thorn wrote: > > Hi Tim! > > > 100% alcohol is less effective than 80%, and in order to completely be > sure, the keyboard needs not only to be wiped. One can buy keyboards that > can be disinfected because they are waterproof, such as the Cherry > JK-1068DE-2 for about 50 €. > > > We clean the keyboards in our lab occasionally anyway, and have used 70% > alcohol on them without problem. Disinfectant wipes, a detergent cleaner > (such as Viss Glass & Flächen) and cotton swabs also offer some help. We > wipe our mobile phones with a disinfectant wipe after washing our hands > when arriving home/at work. > > I would also be really interested in what could be done with a UV light, > if someone knows? > > If the computer is used by one person during the shift, individual > keyboards for each person could be a solution. If people sit down, the desk > surface, which may be touched, should likely also be wiped at the beginning > and end of the shift I would say. > > Stay save and best wishes, > > > > Andrea. > > > > Am 29/04/2020 um 21:04 schrieb Diana Tomchick: > > 100% ethanol or isopropanol work really well on the microscopes, I soak a > Kimwipe and then clean the eyepieces and the knobs for changing > magnification and focus, as well as the door handles, bench tops, etc. > > > Diana > > > ************************************************** > Diana R. Tomchick > Professor > Departments of Biophysics and Biochemistry > UT Southwestern Medical Center > 5323 Harry Hines Blvd. > Rm. ND10.214A > Dallas, TX 75390-8816 > diana.tomch...@utsouthwestern.edu > (214) 645-6383 (phone) > (214) 645-6353 (fax) > ------------------------------ > *From:* CCP4 bulletin board <CCP4BB@JISCMAIL.AC.UK> > <CCP4BB@JISCMAIL.AC.UK> on behalf of Diana Tomchick > <diana.tomch...@utsouthwestern.edu> <diana.tomch...@utsouthwestern.edu> > *Sent:* Wednesday, April 29, 2020 2:00 PM > *To:* CCP4BB@JISCMAIL.AC.UK > *Subject:* Re: [ccp4bb] disinfecting keyboards > > > EXTERNAL MAIL > > You could try doing what my technician does with her keyboard; she wraps > it in a clear, thin food wrap that can be taped to the back of the > keyboard. This is usually done to keep food and other things (liquids) from > damaging the keyboard, but you could simply replace the wrap every time > someone else uses it. > > > Personally I like using a Kimwipe soaked with 100% isopropanol, I've never > yet encountered a keyboard that suffered from having the writing removed > with that or 100% ethanol. Both work and as long as they are 100% (no > water), the keyboard and mouse have no issues. > > > Diana > > > ************************************************** > Diana R. Tomchick > Professor > Departments of Biophysics and Biochemistry > UT Southwestern Medical Center > 5323 Harry Hines Blvd. > Rm. ND10.214A > Dallas, TX 75390-8816 > diana.tomch...@utsouthwestern.edu > (214) 645-6383 (phone) > (214) 645-6353 (fax) > ------------------------------ > *From:* CCP4 bulletin board <CCP4BB@JISCMAIL.AC.UK> > <CCP4BB@JISCMAIL.AC.UK> on behalf of Tim Gruene <tim.gru...@univie.ac.at> > <tim.gru...@univie.ac.at> > *Sent:* Wednesday, April 29, 2020 1:53 PM > *To:* CCP4BB@JISCMAIL.AC.UK > *Subject:* [ccp4bb] disinfecting keyboards > > Dear all, > > can you make suggestions for how to disinfect computer keyboards, and > instrument panels? > > Our facility is going to reboot next week, with shifts so that people > don't meet. The main interface will be the computer keyboards, as well > as the door of our X-ray diffractometer and the mounting of the > crystals. > > The keyboard labels may not like alcohols (and the efficiency of > injecting disinfecting through the USB cable is also under discussion, > so I heard). > > One way would be to use individual keyboards, and wearing gloves for > replugging, and to use gloves for mounting crystals. > > But maybe there are other ways that won't require gloves? > > Best regards, > Tim > > -- > -- > Tim Gruene > Head of the Centre for X-ray Structure Analysis > Faculty of Chemistry > University of Vienna > > Phone: +43-1-4277-70202 > > GPG Key ID = A46BEE1A > > ######################################################################## > > To unsubscribe from the CCP4BB list, click the following link: > https://www.jiscmail.ac.uk/cgi-bin/webadmin?SUBED1=CCP4BB&A=1 > > ------------------------------ > > UT Southwestern > > Medical Center > > The future of medicine, today. > > ------------------------------ > > To unsubscribe from the CCP4BB list, click the following link: > https://www.jiscmail.ac.uk/cgi-bin/webadmin?SUBED1=CCP4BB&A=1 > > CAUTION: This email originated from outside UTSW. Please be cautious of > links or attachments, and validate the sender's email address before > replying. > > ------------------------------ > > To unsubscribe from the CCP4BB list, click the following link: > https://www.jiscmail.ac.uk/cgi-bin/webadmin?SUBED1=CCP4BB&A=1 > > -- > Dr. Andrea Thorn | group leaderandrea.th...@uni-wuerzburg.de > +49 931 31-83677 > > Rudolf Virchow Center, University of Wuerzburg > Josef-Schneider-Str. 2 | 97080 Wuerzburg | > Germanyhttps://www.uni-wuerzburg.de/en/rvz/research/associated-research-groups/thorn-group/ > > > ------------------------------ > > To unsubscribe from the CCP4BB list, click the following link: > https://www.jiscmail.ac.uk/cgi-bin/webadmin?SUBED1=CCP4BB&A=1 > > > > ------------------------------ > > To unsubscribe from the CCP4BB list, click the following link: > https://www.jiscmail.ac.uk/cgi-bin/webadmin?SUBED1=CCP4BB&A=1 > ######################################################################## To unsubscribe from the CCP4BB list, click the following link: https://www.jiscmail.ac.uk/cgi-bin/webadmin?SUBED1=CCP4BB&A=1
