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Find fun stuff in the ODE Classifieds: Comics, your daily horoscope, and, of course, the crossword.
Walker Bags • Ben Sherman • Three Dots
New technology may rid
drinking water of arsenic
Researchers have developed molecules that trap
and immobilize the poison in an affordable manner
“The reason our molecule is fairly
effective is we use this tool of self-as
sembly,” Johnson said.
Self-assemblv is compared in the
BY THOMAS MU NRO
DAILY EMERALD FREELANCE REPORTER
A group of University researchers
has made a step toward effective, af
fordable technology to treat arsenic
poisoning and lower arsenic levels in
the world’s drinking water. The re
searchers developed molecules that
trap and immobilize atoms of the
heavy metal.
Assistant professor of chemistry
Darren Johnson and doctoral student
Jake Vickaryous published their work
in the Nov. 5 issue of Angewandte
Chemie International Edition, the
world’s leading chemistry journal, ac
cording to a University press release.
Johnson said he was attracted to the
arsenic problem by the lack of basic re
search into the heavy metal.
“Arsenic is synonymous with poi
son, but we don’t have great ways to
treat it,” Johnson said.
When Johnson joined the Universi
ty faculty a year and a half ago, he said
he was eager to fight this health haz
ard. According to a 2001 Environmen
tal Protection Agency report, arsenic in
drinking water has been conclusively
linked to bladder and lung cancer. It
may also increase the risk of high
blood pressure and diabetes.
Removal of this dangerous heavy
metal has proved a difficult technolog
ical problem. Important work was
done at Sandia National Laboratories
in New Mexico, which announced in
2001 the development of “new chemi
cals with flypaper-like arsenic-trapping
properties,” according to a Sandia
press release. However, prohibitive
costs and other concerns held back
this technology.
Johnson, like his Sandia predeces
sors, began his molecule design on a
computer. He aimed to find a “design
strategy to specifically interact with ar
senic ions.” He was aided by Rainer
Herges, a computational chemist at the
University of Kiel in Germany.
Johnson said doctoral student
Vickaryous was responsible for most
of the research work. He described
him as “a fantastic graduate student
who has really taken this project in the
direction he wanted to go. ”
The two created molecules known
as chelators, a word that derives from
the Greek for “crab claw. ” Chelators
wrap themselves around heavy metal
atoms, in this case forming a pyramid
like molecule, according to the Univer
sity press release.
Johnson and Vickaryous created an
effective arsenic trap that also prom
ised to be relatively inexpensive.
University press release to “a puzzle
that puts itself together.” This means
that there is no need to directly assem
ble each molecule.
This groundbreaking basic research
will have application in the study of
the other heavy metals, including mer
cury, Johnson said.
The next step in Johnson’s research
will be to create a water-soluble ver
sion that could have medical applica
tions. He can also look into integrating
the molecules into an extraction agent
for use in groundwater.
“It would be great if someone could
develop a better drug for arsenic or a
better way to remove it from the envi
ronment,” Johnson said.
Much work lies between Johnson
and Vickaryous’ paper and a useable
technology. Research must be done to
determine the heath effects of the mol
ecules produced by the chelation. The
relative speed and effectiveness of ab
sorption of the new chelators and the
tissues of the human body must also
be investigated, Johnson said.
According to the University press re
lease, “Roughly 10 percent of U.S.
groundwater contains arsenic concen
trations above 10 ppb,” the maximum
level allowed by the EPA. The work of
Johnson and Vickaryous may some
day improve this dangerous situation.
Don’t-Do-lt-Yourself Directory
PROFESSIONAL SERVICE PROVIDERS
LISTED HERE EVERY MONDAY
ARTS & CRAFTS
Harlequin Beads & Jewlery
1027 Willamete St. 683-5903.
www.harleauinbeads.com.
AUTOMOTIVE
10 min. oil change! 15 yrs of expe
rience! Cooling systems, transmis
sion. Pit Stop USA Inc. Corner of
W. 11th & Garfield. 686-2507
C & L Automotive. Quality service,
reasonable rates. Student/Senior
discount. Shuttle service. 7:30-5:30,
M-F 485-5135.3764 BW 11th.
German Auto Service since 1963
Specializing in foreign autos. Near
UO, (Franklin & Walnut) 342-2912.
BIKE REPAIR/SALES
Paul’s Bicycle Way: fast, affordable
repairs- Trek, Fisher, Raleigh, Kona,
bikes. 2480 Alder, 342-6155
COMICS BUY & SELL
Emerald City Comics, your 1-stop
for anime, manga, comics & games.
We buy & sell. 770 E. 13th Ave.
DONATIONS
1 call takes it all! Donate your stuff
to St. Vincent de Paul: turn, books,
clothes, sports items, etc. 345-0595
MOVERS/SHIPPERS
Al’s Moving Service: Professionals,
no job too small. Great rates, free
estimates, load/unload your rental
truck. Pianos, pool tables. 726-1229
PAKMAIL:We ship computers,
bikes, dorms, etc. FREE Eugene
Pick up. FREE Estimates. Bring this
AD for 10% off shipping. 607-0707.
MUSIC
Music Lessons: Rock, Jazz, Folk,
Classical, most instruments, Voice,
& Dance. Private or with a friend.
Stark-raving beginners to advanced.
OFAM at The Shedd. 687-6526
OPTICAL
THE FOCAL POINT
OPTICAL
1550 Oak St. *683-6341
Corner of 16th & Oak
Inside Oregon Eye Associates
New to the area? Check out our
Don't-Do-lt-Yourself Directory every
Monday for service listings.
PET CARE/SITTING
Eugene Animal Hospital: low cost
spay & neuter, free exam w/vacci
nations. Near UO. 342-1178
RECREATION
Crux Rock Gym: 9000 sq. ft. of
climbing w/bouldering cave.
Lessons must see -
cruxrock.com 484-9535
TRAVEL
VIP Taxi • Student & airport dis
counts. Visa/Mastercard. Courteous
drivers. Clean mini vans. 484-0920
TYPING/EDITING
Retired Editor (& rapid typist). Effi
cient & accurate. Will pick up & de
liver. $10-12/hr. Jane 741-3020.
TYPING/EDITING
Prof, editing, proofing, typing. The
ses, papers, resumes. 20 yrs. exp.
Eug. area. Angela 343-0917,
TUTORING
Dissertation Coaching. Need sup
port? Sure you dot It isn't just anoth
er paper. Call 503-804-4748. aca
demicwritingcoach @ iudatha.com
_ To list your service here, call 3*+6-It3it3.
To place an ad, call (541) 346-4343 or stop by Room 300 Erb Memorial Union
E-mail: classads@dailyemerald.com Online Edition: www.dailyemerald.com
Room 300, Erb Memorial Union, RO. Box 3159, Eugene, OR 97403
fizgig—"
up
See “Help Wanted.”
Preventive Maintenance
Specialists for 29 Years.
105 TYPING/EDITING SERVICES
EXPERT THESIS/DISSERTATION
editor, Grad School approved
since 1974! Papers, resumes.
ON CAMPUS! ROBIN, 344-0759
125 FURNITURE/APPLIANCES
Washer dryer for sale. $100 obo.
Futon $25 obo. Ellen 221-1244.
$97
QUEEN SIZE PILL0WT0P
New Mattresses & Boxspring
Guaranteed Lowest Prices!
FREE DELIVERY
AMERICAN MATTRESS
MANUFACTURING
4075 West 11th • 343-2690
Open 7 Days a Week
TREK 820 Mountain Bike
Practically new. Maybe 300 mi.
Asking $200. 683-5650
Movie extras, actors, models!
Make $100/$300 per day. No expe
rience required. FT/PT. All ages and
looks needed! Call 800-773-8223.
185 BUSINESS OPPORTUNITIES
BARTENDING $250/day potential,
no experience necessary, training
provided. 800-965-6520 ext. 118
The Oregon Daily Emerald assumes no
liability for ad content or response. Ads are
screened for illegal content and mail order
ads must provide a sample of item for sale.
Otherwise, ads that appear too good to be
true, probably are.
Respond at your own risk.
Call me now ar 877-855-7761
Can you lose
5-40 lbs.
by X-Mas?
YES!!!
193 INTERNSHIPS
Child Development Centers. The
University of Northern Iowa has
internships available with Child
Development Centers in Germany,
January 15-May 8. College course
work and experience in early
childhood/elementary education re
quired. Airfare and housing are paid
as well as a living stipend. Interns
receive 12 hours of credit (graduate
or undergraduate). College of
Education, School of HPELS. Call
Juli Gassman at (319)-273-2264 or
e-mail HR@Campadventure.com.
Child care wanted: 2-3 afternoons
per week with additional hours avail
able if desired, to care for 2 boys, 6
& 8. Beginning Jan. but earlier
would be great to get to know us.
Must have car & references. Call
686-8073 or e-mail flvdoc@att.net