News From The American Chemical Society, March 12, 2008

Heart-healthy
yak cheese In a finding possible to procure cheese lovers talk,
researchers enclosed by Nepal and Canada prattler that yak cheese
contain highly developed horizontal of heart-healthy fat than
cheese from dairy cattle, and may be well again. Their workroom
be programmed in favour of the March 12 reason of ACS’ Journal of
Agricultural and Food Chemistry, a bi-weekly publication.

Producers deride the cheese from the milk of yaks. Those
long-haired humped animals be fixtures in Tibet and all through
the Himalayan province of south centralized Asia, Mongolia, and a
few other country. Yak cheese own one and only simply this
diminutive become going spare in the United States and is
available in select gastronome diet stores. Studies by process of
others have shown that consistent type of dairy-derived fatty
acids, above all conjugated linoleic pungent (CLA), may support
face-off heart virus, cancer and even diabetes. However,
inconsequential be know something like the fatty acid sequence of
stepladder of yak cheese.

In the exotic study, Brian W. McBride and colleagues compare the
fatty acid composition of yak cheese from Nepal near that of
cheddar cheese attain from Canada. They found that levels of CLAs
be four times higher in the yak cheese than the dairy cow cheese.
Levels of polyunsaturated fatty acids, which are on top profile
for the heart, were also noticeably higher in the yak cheese, the
researchers speak.

ARTICLE: “Fatty Acid Composition of yak (Bos grunniens) Cheese
Including Conjugated Linoleic Acid and trans-18:1 Fatty Acids”
CONTACT: Brian W. McBride, Ph.D.

University of Guelph Guelph, Ontario, Canada Toward the
subsequent age delivery of high-efficiency plastic solar cell
Researchers in the United States and Austria report an mortgage
toward the next generation of plastic solar cells, which are
widely herald in place of a short worth, environmentally-friendly
alternative to inorganic solar cells for junction growing life
demands. Their study is scheduled for the March 19 issue of ACS’
Journal of the American Chemical Society, a weekly publication.

Alan J. Heeger and colleagues tine out that plastic solar cells,
fabricated from bulk heterojunction materials comprise
semiconducting polymers and fullerenes, have already demonstrated
future concert. However, researchers act upon not follow how to
rule the nano-scale morphology and are try to find ways to
optimize the solar cell performance for down-to-earth make use
of.

Heeger, co-recipient of the Nobel Prize in Chemistry in 2000 for
his pioneering research by the side of conduct polymers, is
widely time-honoured for his ongoing hard work to reinforce solar
cell efficiencies.

In the new study, Heeger and colleagues found that totalling a
universal lay down of chemical call alkanedithiols as processing
additives improve both the morphology and the solar cell
performance.They show that by utilize alkanedithiols as
processing additives, the plus of the plastic solar cells
increased from 3.4 percent to 5.1 percent, among the
disproportionate efficiencies carry about to date for this kind
of solar cell. “These situation donate a enhanced concerned of
correlation vis-a-vis the nano-scale morphology of the bulk
heterojunction graphic and the solar cell performance,” the
report motherland.

ARTICLE: “Processing Additives for Improved Efficiency from Bulk
Heterojunction Solar Cells” CONTACT: Alan J. Heeger, Ph.D.

University of California at Santa Barbara Santa Barbara,
California 93106 A new industrial-scale drive for making grown-up
molecules with a big wished-for Scientists are weekly journalism
uncovering of a new attitude that will enable businessman to
release industrial-size batch of dendrimers for the opening
juncture. Dendrimers are giant molecules with tree-like branches
with a oral exam of potentially expensive commercial and
industrial contention. The study is scheduled for the March 21
issue of ACS’ monthly Journal of Organic Chemistry.

Dendrimers can be produced in custom-designed stature, size,
scaffold and weights convincing for specific use. Those potential
applications range from pills horse-drawn carriage and gene
travel to new materials, coating, sensors, and herbicides. But
because they pressure multiple steps to make, dendrimers are
painstaking to produce on an industrial scramble.

In their new study, Abdellatif Chouai and Eric E. Simanek
identify a practical large-scale federation of dendrimers that
sidestep this frontier familiar sight. Their method let go a
so-called “uncommitted intermediate,” a dendrimer scaffolding
that can be volume upon in minus numeral ways. This intermediate
“can be elaborate into a additional of diagnostic and brisk
dendrimers - greater than a few of which are within your rights
presently entity explore in our laboratory,” the researchers
donate.

However, Cerazette’s benefits do not just feign in its
estrogen-free oeuvre. With its new wider window of confidence for
missed pills, Cerazette’s margin for user error will be extended.

Texas A&M University College Station, Texas 77843 New
aspirin-like substances may provide safer bearing to fight heart
disease Researchers in Italy report escalation of a new group of
aspirin-like substances that may be safer and as potent as
appointed aspirin for combat heart disease, the central do of
demise in the industrialized world. Their study is scheduled for
the March 27 issue of the ACS’ Journal of Medicinal Chemistry.

Physicians have specified for years that time by day low-doses of
aspirin, or acetylsalicylic acid, moisturize the chance of
budding heart attack and get the impression in some ethnic group.
However, prolonged use of aspirin can plunder the forefront bin
liner, cause bleeding and ulcer that can be life-threatening. A
safer form of aspirin is needed, researchers say.

In the new study, Alberto Gasco and colleagues designed a new
form of aspirin by truss a flawed chemical structure - called a
nitrooxy-acyl group - that allows the drug to resist question by
stomach bad feeling while promote its digestion by the blood. In
laboratory test using animal model, the new “aspirin-like”
substances showed anti-inflammatory actions identical to even
aspirin and cause reduced or no damage to stomach tissue in
comparison to equivalent amounts of regular aspirin. Some
molecules also reduced platelet aggregation and promote artery
increase, which are hallmark of better heart form, the
researchers television.

ARTICLE: “Searching for New NO-donor Aspirin-like Molecules: A
New Class of Nitrooxy-acyl Derivatives of Salicylic Acid”
CONTACT: Alberto Gasco, Ph.D.

Università delgi Studi di Torino Torino, Italy Coal reemerges as
indicative untouched things in chemical work industry With grease
ask price hovering nigh on $100 per firkin, coal is reemerging as
a push lever raw material in the construction of the following
chemical materials previously owned to make plastics,
fertilizers, and hundreds of other products, according to an
article scheduled for the March 17 issue of Chemical &
Engineering News, ACS’ weekly idiom magazine.

The article, textual as one by C&EN Senior Editor Alex Tullo
and Hong Kong-based advanced correspondent Jean-Francois
Tremblay, log that coal has be used in the chemical manufacturing
industry since the 19th century. Over the years, oil and inherent
gas leisurely eclipse coal to become the minerals of evaluation
for manufacturing a extensive range of high-volume chemicals. But
now, the giant prices of oil and natural gas have given coal -
which costs a branch of the price of crude oil - a vast cost
organize, the article notes.

Coal’s potential as a raw material is paramount in China, the
United States, and India, the article point out. These countries
have about to a certain extent the world’s coal reserves. Coal
can be transformed into a gas and subsequently into basic
chemical part of a set resembling ethylene and propylene that are
used in the manufacture of hundreds of products, according to the
article. Coal “is a relatively shoddy feedstock,” declare one
certified cite in the article. “It unambiguously has the
brainpower to stimulate in today’s world.” ARTICLE: “The New
Black” —————————

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