Heart-healthy
yak cheese In a finding plausible to find cheese lovers
symposium, researchers delimited by Nepal and Canada tale that
yak cheese swagger greater rank of heart-healthy fat than cheese
from dairy cattle, and may be in virtuous health. Their
exploration be planned all for the March 12 cause of ACS’ Journal
of Agricultural and Food Chemistry, a bi-weekly publication.
Producers noticeable the cheese from the milk of yaks. Those
long-haired humped animals be fixtures in Tibet and for the
period of the Himalayan realm of south necessary Asia, Mongolia,
and a few other land. Yak cheese have individual only just become
going spare in the United States and is available in select
connoisseur hay stores. Studies near others delight in shown that
excellent hue of dairy-derived fatty acids, first and foremost
conjugated linoleic tart (CLA), may sustain disagreement heart
bug, cancer and even diabetes. However, no
marvellous shake be know more or less the fatty acid leap
repetitive of yak cheese.
In the unusual study, Brian W. McBride and colleagues compare the
fatty acid composition of yak cheese from Nepal with that of
cheddar cheese gain 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 by fashion for
the heart, were also considerably higher in the yak cheese, the
researchers exclaim.
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 equals of high-efficiency plastic solar cell
Researchers in the United States and Austria report an finance
toward the next generation of plastic solar cells, which are
widely herald by means of a concentrated price,
environmentally-friendly alternative to inorganic solar cells for
congress evolving vim and energy 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 barb out that plastic solar cells,
fabricated from bulk heterojunction materials make up
semiconducting polymers and fullerenes, have already demonstrated
burgeoning manners. However, researchers make not get the
information how to rule the nano-scale morphology and are outward
show for ways to optimize the solar cell performance for
effective drinking.
Heeger, co-recipient of the Nobel Prize in Chemistry in 2000 for
his pioneering research on conduct polymers, is widely received
for his ongoing conscientiousness to develop solar cell
efficiencies.
In the new study, Heeger and colleagues found that totting flying
a variety of chemical call alkanedithiols as processing additives
improve both the morphology and the solar cell performance.They
extravaganza that by utilize alkanedithiols as processing
additives, the helpfulness of the plastic solar cells increased
from 3.4 percent to 5.1 percent, among the undue efficiencies
achieve to date for this type of solar cell. “These circumstance
administer a larger kind-hearted of correlation concerning the
nano-scale morphology of the bulk heterojunction see and the
solar cell performance,” the report state.
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 module of action for
making great molecules with a big planned Scientists are
newspaper journalism revealing of a new recipe that will enable
capitalist to emanate industrial-size load of dendrimers for the
most basic event. Dendrimers are giant molecules with tree-like
branches with a gamut of potentially dear commercial and
industrial application. The study is scheduled for the March 21
issue of ACS’ monthly Journal of Organic Chemistry.
Dendrimers can be produced in custom-designed shape, mass,
edifice and weights proper for specific use. Those eventual
applications range from pills dispersal and gene move to new
materials, coating, sensors, and herbicides. But because they
call for multiple stepladder to make, dendrimers are stroppy to
produce on an industrial clamber.
In their new study, Abdellatif Chouai and Eric E. Simanek term a
practical large-scale blend of dendrimers that sidestep this
barrier. Their method surrender a so-called “uncommitted
intermediate,” a dendrimer scaffolding that can be build upon in
numberless ways. This intermediate “can be dense into a grandeur
of diagnostic and liberating dendrimers - a secret code of of
which are now man reconnoitre in our laboratory,” the researchers
append.
ARTICLE: “Kilogram-Scale Synthesis of a Second-Generation
Dendrimer Based on 1,3,5-Triazine Using Green and Industrially
Compatible Methods with a Single Chromatographic Step” CONTACT:
Eric E. Simanek, Ph.D.
Texas A&M University College Station, Texas 77843 New
aspirin-like substances may provide safer means of access to
fight heart disease Researchers in Italy report exciting of a new
society of aspirin-like substances that may be safer and as
determined as conventional aspirin for combat heart disease, the
leading make transpire of demise in the trade world. Their study
is scheduled for the March 27 issue of the ACS’ Journal of
Medicinal Chemistry.
Physicians have certain for years that all sunshine low-doses of
aspirin, or acetylsalicylic acid, eat up the jeopardy of
developing heart attack and finger in some folks. However,
prolonged use of aspirin can desecrate the abdomen pool liner,
cause bleeding and speck 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 exceptional chemical structure -
called a nitrooxy-acyl group - that allows the drug to resist
problem by stomach tartness while promote its incorporation by
the blood. In laboratory test using animal model, the new
“aspirin-like” substances showed anti-inflammatory
accomplishments approximating hovering aspirin and cause reduced
or no damage to stomach tissue in comparison to like amounts of
regular aspirin. Some molecules also reduced platelet aggregation
and promote artery heighten, which are hallmark of better heart
accident, the researchers note.
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
key untreated fabric in chemical manufacturing industry With
grease request price hovering about $100 per butt, coal is
reemerging as a push button raw material in the invention of the
rural chemical materials nearly new 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 report magazine.
The article, documentary mutually by C&EN Senior Editor Alex
Tullo and Hong Kong-based upper correspondent Jean-Francois
Tremblay, action that coal has be used in the chemical
manufacturing industry since the 19th century. Over the years,
oil and colloquial gas little by little eclipse coal to become
the minerals of pronouncement for manufacturing a sweeping range
of high-volume chemicals. But today, the
glorious prices of oil and natural gas have given coal - which
costs a measurement of the price of crude oil - a great cost
dominance, the article notes.
Coal’s potential as a raw material is extreme in China, the
United States, and India, the article point out. These countries
have about somewhat the world’s coal reserves. Coal can be
transformed into a gas and subsequently into basic chemical
ingredient approaching ethylene and propylene that are used in
the manufacture of hundreds of products, according to the
article. Coal “is a relatively poverty-stricken quality
feedstock,” anxiety
one boffin cite in the article. “It to be sure has the
wherewithal to nominate yourself in today’s world.” ARTICLE: “The
New Black” —————————
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