[ Sitemap ] [ Contact ] [ Imprint ] [ Deutschsprachige Chemie-Nachrichten ]


Current News

Chemistry News

Current Research Articles

Job Market

Chemistry Conferences

News Archive 2007

Chemistry A to Z

Chemistry Index


Products and Companies

About Internetchemistry



German News 2008 News in German

Get Internetchemistry RSS News Feed

Chemistry News Archive April 2008

Chemistry News April 2008

News of the year 2008 in the fields of chemistry and chemistry-related topics like biochemistry, nantechnology, medicinal chemistry etc.

Main focus: press releases, scientific research results and summaries of chemistry articles, that are published in chemistry journals.

Please send us a eMail to publish your press release!

ACS News (open access articles):


Study calls for action on heart risks from certain anti-cancer drugs

Conceptual representation of a constellation of factors that synergize with cardiotoxicity induced by a known cardiotoxic drug and make cardiac events occur at lower than expected cumulative doses of that drug.

Image by P. Menna, E. Salvatorelli and G. Minotti.

Heart damage from certain anti-cancer drugs no longer should be regarded as a rare or relatively unimportant complication, scientists in Italy have concluded in a new overview of research on the cardiotoxicity of anti-cancer drugs. Their review, scheduled for the May 19 issue of ACS� monthly journal, Chemical Research in Toxicology, recommends that drug regulatory agencies, physicians, and toxicologists join in a focused research effort to combat the problem.

In the new study, Giorgio Minotti, Pierantonio Menna, and Emanuela Salvatorelli point out that the risk of cardiotoxicity may be higher than previously believed, especially in older patients and those with high blood pressure, coronary artery disease, and other risk factors. Studies of long-term survivors of childhood and adult cancer - more than 10 million people in the United States alone - also suggest an increased risk of symptomatic cardiac events.

Their review found that newer, targeted drugs can damage the heart, particularly when combined with old-generation chemotherapeutics. �Toxicologists and regulatory agencies and clinicians should therefore join in collaborative efforts that improve early identification of cardiotoxicity and minimize the risks of cardiac events in patients,� the article notes. - MTS

Chemical Research in Toxicology: "Cardiotoxicity of Antitumor Drugs"


A dash of salt grows healthier tomatoes

Watering tomato plants with diluted seawater boosts levels of antioxidants, scientists report.

Credit: Courtesy of public-domain-photos.com

Watering tomatoes with diluted seawater can boost their content of disease-fighting antioxidants and may lead to healthier salads, appetizers, and other tomato-based foods, scientists in Italy report. Their study is scheduled for the May 14 issue of ACS� Journal of Agricultural and Food Chemistry, a bi-weekly publication.

Besides their use in a variety of ethnic food dishes, tomatoes are one of the most commonly grown home garden vegetables, particularly cherry tomatoes. Scientists have linked tomatoes to several health benefits, including protection against prostate cancer and heart disease. Researchers have known for years that seawater does not stimulate the growth of tomatoes, but scientists know little about its effects on the nutritional content of the vegetables.

In the new study, Riccardo Izzo and colleagues grew cherry tomatoes in both freshwater and in a dilute solution of 12 percent seawater. They found that ripe tomatoes grown in the salty water showed higher levels of vitamin C, vitamin E, dihydrolipoic acid, and chlorogenic acid. All of these substances are antioxidants that appear to fight heart disease, cancer, aging, and other conditions. Using saltwater to irrigate tomato crops also appears to be a promising alternative to freshwater irrigation, especially in the wake of water shortages in some parts of the world, the researchers note. - MTS

Journal of Agricultural and Food Chemistry: "Irrigation with Diluted Seawater Improves the Nutritional Value of Cherry Tomatoes."


Extreme Instruments

Scientific instrument makers, often-hidden contributors to great scientific revolutions of the past, now are focusing on development of a new generation of the third most common instrument found in modern chemistry labs, according to an article scheduled for the April 28 issue of Chemical & Engineering News (C&EN), ACS�s weekly news magazine.

These so-called �liquid chromatography� machines rank behind only the laboratory scale and the pH meter as chemistry�s ubiquitous instrument, Senior Editor Mitch Jacoby notes in the C&EN cover story. Chemists use chromatography to analyze complex solutions of chemicals in the search for better medicines, more durable materials, and in a range of other research.

Instrument makers are responding to a critical need for faster, more powerful versions of one particular tool, termed high performance liquid chromatography, or �HPLC,� where the �P� also often can stand for �pressure,� the article says. Jacoby describes the quest for new generations of HPLC tools with the ability to separate chemicals faster and more precisely than ever before. �Extreme� HPLC instruments already are speeding laboratory work in drug companies and other settings, with even better instruments on the horizon, the article suggests.

Chemical & Engineering News: "Chromatography in the Extreme".

Week 16/17: 14-Apr-2008 to 27-Apr-2008


Technological breakthrough in the fight to cut greenhouse gases
Scientists at Newcastle University have pioneered breakthrough technology in the fight to cut greenhouse gases.


Image courtesy of Chuan He, University of Chicago

Researchers reveal structure of protein that repairs damage to cancer cells

A team of University of Chicago scientists has shown how two proteins locate and repair damaged genetic material inside cells.


Nanotubes grown straight in large numbers
Duke University chemists have found a way to grow long, straight cylinders only a few atoms thick in very large numbers, removing a major roadblock in the pursuit of nano-scale electronics.


Findings a step toward making new optical materials
Chemical engineers have developed a "self-assembling" method that could lead to an inexpensive way of making diamondlike crystals to improve optical communications and other technologies.


Protein shows talent for improvisation

An unusual regulatory mechanism in the formation of contact sites between nerve cells.

ACS News (open access articles):


Silicon nanotubes for hydrogen storage in fuel cell vehicles

Researchers report hydrogen storage by silicon nanotubes exceeds that of their carbon couterparts. Silicon could play a large role in the emergence of "clean" hydrogen fuel cell vehicles.

Image by ORNL

After powering the micro-electronics revolution, silicon could carve out an important new role in speeding the debut of ultra-clean fuel cell vehicles powered by hydrogen, researchers in China suggest. Their calculations show for the first time that silicon nanotubes can store hydrogen more efficiently than their carbon nanotube counterparts. The study will appear in the April 24 issue of ACS� Journal of Physical Chemistry C, a weekly publication.

Dapeng Cao and colleagues note that researchers have focused on the potential use of carbon nanotubes for storing hydrogen in fuel cell vehicles for years. Despite nanotubes� great promise, they have been unable to meet the hydrogen storage goals proposed by the U.S. Department of Energy for hydrogen fuel cell vehicles. A more efficient material for hydrogen storage is needed, scientists say.

In the study, Cao�s group used powerful molecular modeling tools to compare the hydrogen storage capacities of newly developed silicon nanotubes to carbon nanotubes. They found that, in theory, silicon nanotubes can absorb hydrogen molecules more efficiently than carbon nanotubes under normal fuel cell operating conditions. The calculations pave the way for tests to determine whether silicon nanotubes can meet government standards for hydrogen storage, the scientists note. - MTS

Journal of Physical Chemistry C: "Silicon Nanotube as a Promising Candidate for Hydrogen Storage: From the First Principle Calculations to Grand Canonical Monte Carlo Simulations."


Questioning nuclear power�s ability to forestall global warming

In a new study, scientists question the sustainability of nuclear power because of anticipated declines in high-grade uranium ore. Above is Australia's Ranger uranium mill.

Imageby Gavin M. Mudd

Rising energy and environmental costs may prevent nuclear power from being a sustainable alternative energy source in the fight against global warming, according to a study in the April 1 issue of ACS� Environmental Science & Technology, a semi-monthly journal.

In the article, Gavin M. Mudd and Mark Diesendorf investigate the �eco-efficiency� of mining and milling uranium for use as fuel in nuclear power plants. Advocates of nuclear power claim it has the potential to mitigate global warming. Detractors, however, link it to dangers such as proliferation of nuclear weapons and problems such as permanent disposal of nuclear waste.

The study points out that supplies of high-grade uranium ore are declining, which may boost nuclear fuel's environmental and economic costs, including increases in energy use, water consumption and greenhouse gas emissions. In addition, newly discovered uranium deposits may be more difficult to extract in the future - a further drain on economic and environmental resources.

�The extent of economically recoverable uranium, although somewhat uncertain, is clearly linked to exploration effort, technology and economics but is inextricably linked to environmental costs, such as energy, water, and chemicals consumption, greenhouse gas emissions and broader social issues,� the authors say. �These issues are critical to understand in the current debate over nuclear power, greenhouse gas emissions, and climate change, especially with respect to ascribing sustainability to such activities as uranium milling and mining.� - JS

Environmental Science & Technology: "Sustainability of Uranium Mining and Milling: Quantifying Resources and Eco-Efficiency."


Chemists have discovered how the rose is able to hold on to water droplets even when upside down. The finding could lead to new adhesive materials.

Image by public-domain-photos.com

Chemists reproduce the rose�s �petal effect�

The lotus flower is nature�s �slip n� slide,� where water beads skate along each petal�s surface like liquid metal. Now, chemists reveal the ying to the lotus� frictionless yang: rose petals. Chemists have found the physical basis for the rose�s ability to grip water droplets in place, even when the flower is upside down. In a study scheduled for the April 15 issue of ACS� Langmuir, a bi-weekly journal, this newly described �petal effect� could lead to unique new adhesive materials, coatings and fabrics.

The study of biological microstructures has been an lively area of research, particularly in the design of biomimetic materials. But before the petal effect could be replicated in synthetic materials, an in-depth understanding of the rose�s surface was needed.

Lin Feng and colleagues in China provide the first description of the microscale surface of roses, composed of arrays of tiny, fleshy projections called micropapillae. The micropapillae form a seal with water droplets, allowing them to cling to the surface of the rose petal. Using these new insights, Feng was able to create a synthetic rose petal surface with same properties.

�The simple duplication of petal surface provides us not only a theoretical explanation of the phenomenon but also an inspiration for the preparation of biomimetic polymer films, which should be of great biological and technological importance,� says Feng. - AD

Langmuir: "Petal Effect: A Superhydrophobic State with High Adhesive Force."


Demand for improved consumer products drives growth of key family of chemical ingredients

From running shoes to automobiles with improved fuel efficiency, the demand for consumer products with better quality and performance is boosting demand for dyes, adhesives, rust inhibitors, and other so-called �specialty chemicals,� according to an article scheduled for the April 21 issue of Chemical & Engineering News, ACS� weekly newsmagazine. The article presents a snapshot of this important yet often little-publicized sector of the chemical industry.

Written by Senior Editor Rick Mullin, C&EN�s cover story notes that specialty chemical-based �additives� enhance paint, soap, electronics, sneakers and hundreds of other consumer products to make them perform better and last longer. The development of innovative new specialty chemicals has evolved into a robust independent industry, whereas in the past it was a hidden component in the overall manufacture of other products.

Mullin presents the perspective of various industry leaders who comment on this diverse, profitable, and ever-expanding market for chemicals produced in smaller volume than bulk chemicals, such as petrochemicals made from petroleum. Green chemistry is one major force behind the growth of the specialty chemical industry, fostering production of environmentally-friendly materials that increasingly are used in consumer products.

Chemical & Engineering News: "Post-Chemistry Formulas."

Week 15: 07-Apr-2008 to 13-Apr-2008


Popcorn-ball design doubles efficiency of dye-sensitized solar cells

A new approach is able to create a dramatic improvement in cheap solar cells now being developed in laboratories.

By using a popcorn-ball design - tiny kernels clumped into much larger porous spheres - researchers at the University of Washington are able to manipulate light and more than double the efficiency of converting solar energy to electricity.


Biochemical signals associated with atherosclerosis may damage other organs
In a finding that challenges conventional medical knowledge, researchers report that plaques formed in during atherosclerosis, or hardening of the arteries, are associated with certain harmful chemical reactions that can contribute to damage in the lungs, liver and other organs.


Dr. Mom was right - and wrong - about washing fruits and vegetables
Washing fresh fruits and vegetables before eating may reduce the risk of food poisoning and those awful episodes of vomiting and diarrhea. But according to new research washing alone - even with chlorine disinfectants - may not be enough.


How sweet it is: 'Revolutionary' process points to sugar-fueled cars
Chemists are describing development of a �revolutionary� process for converting plant sugars into hydrogen, which could be used to cheaply and efficiently power vehicles equipped with hydrogen fuel cells without producing any pollutants.

Week 14: 31-Mar-2008 to 06-Apr-2008


Birth of an Enzyme
Scientists succeed in designing artificial enzymes that also undergo 'evolution in a test tube'.

ACS News (open access articles):


First evidence that blocking key energy protein kills cancer cells

In a finding that could lead to more effective anti-cancer medication, scientists exposed breast cancer cells to a substance that blocks a protein called ATP synthase. The cancer cells were killed while normal ones were preserved.

Image by Hsin-Yi Chang and Hsueh-Fen Juan

Researchers in Taiwan report for the first time that blocking a key energy-supplying protein kills cancer cells. The finding, described as the first to test possible medical uses of so-called ATP-synthase inhibitors, may lead to new and more effective anti-cancer medications, according to their report, which is scheduled for the April 4 issue of ACS� monthly Journal of Proteome Research.

In the new study, Hsueh-Fen Juan and colleagues focused on ATP synthase, a key protein involved in producing the energy-rich molecules of ATP that power all life processes. For years researchers thought that the protein existed only in mitochondria, structures located inside cells that convert nutrients into energy. Recent studies found high levels of ATP synthase on the surface of cancer cells, but until now the medical implications went unexplored.

The researchers analyzed tissue samples from breast cancer patients and found for the first time that the surface of breast cancer cells contains high levels of ATP synthase. In cell studies, exposing breast cancer cells to a substance that blocks ATP synthase killed the cancer cells but did not harm normal cells, the researchers say. The findings suggest that ATP synthase inhibitors may represent a new approach for fighting breast cancer and other cancer types, they say. - MTS

Journal of Proteome Research: �Targeting Therapy for Breast Carcinoma by ATP Synthase Inhibitor Aurovertin B�.


Electric shocks boost plants' production of commercially useful chemicals

Now for some "shocking" news about plants: Exposing plants to electricity can boost production of useful plant chemicals and may provide a cheaper, safer, and more efficient method for producing medicines, pesticides, and other commercially important plant-based materials, researchers in Arizona and Oklahoma report. Their study is scheduled for the April 4 issue of ACS' Biotechnology Progress, a bi-monthly journal.

Researchers have known for years that plants can produce a diverse array of substances as part of their natural response to environmental factors such as microbial infection, sunlight, and chemical exposure. To boost levels of plant chemicals for commercial purposes, scientists have often turned to synthetic chemical additives as well as genetic engineering, which can be expensive and potentially harmful. A better method is needed, scientists say.

In the new study, Hans VanEtten and colleagues studied the effects of electricity on the ability of the pea plant to produce pisatin, an antifungal substance. They found that exposing pea plants to certain sub-lethal doses of electric current produced 13 times higher amounts of pisatin than plants that were not exposed to electricity. The researchers observed similar increases in plant chemicals produced by a variety of other plants when exposed to electricity. There were no adverse effects on the plants. - MTS

Biotechnology Progress: "Sub-lethal Levels of Electric Current Elicit the Biosynthesis of Plant Secondary Metabolites".


Chemical signaling may power nanomachines

Scientists report that chemical signaling between microcapsules can initiate the capsules' movement, a finding that could assist nanomachines in drug delivery as well as a host of other applications.

Image by O. Berk Usta

In a finding that could provide controlled motion in futuristic nanomachines used for drug delivery, fuel cells, and other applications, researchers in Pennsylvania report that chemical signaling between synthetic microcapsules can trigger and direct movement of these capsules. Their study is scheduled for the currrent isssue of ACS Nano, a monthly journal.

Researchers theorize that synthetic capsules can communicate with each other by physically shuffling chemical signals from capsule to capsule, much like passing water through a fireman�s bucket brigade. Scientists recently suggested that this same signaling process also appears capable of sending cues to direct cell movement.

In the new study, Anna C. Balazs and colleagues used computer models to simulate the chemical signaling. They modeled a porous polymer microcapsule filled with nanonparticles to imitate a biological cell. When placed next to an empty capsule, nanoparticles from the filled capsule initiated the motion of the empty capsule, which in turn caused the movement of the filled �signaling� capsule. The same locomotion process could be engineered into futuristic nanomachines to help direct their movement through the body or through fuel cells, the researchers suggest. - MTS

ACS Nano: �Modeling Microcapsules That Communicate through Nanoparticles To Undergo Self-Propelled Motion.


Debate sharpens over fertilizing the oceans to control global warming

As millions of people prepare to fertilize their lawns and gardens this spring, scientists are still in the midst of intensive hand-wringing over the pros and cons of fertilizing the world�s oceans in an effort to control global warming, according to an article scheduled for the March 31 issue of Chemical & Engineering News, ACS� weekly newsmagazine.

C&EN Associate Editor Rachel A. Petkewich explains that in theory, ocean fertilization would remove carbon dioxide from the atmosphere by spurring the growth of tiny marine plants termed plankton that need CO2 for growth. First proposed years ago, ocean fertilization has taken on new dimensions now that hundreds of start-up companies are preparing to offer ocean-fertilization services, Petkewich says.

Although fertilization can stimulate the growth of plankton and draw down atmospheric carbon dioxide, scientists do not know whether it would be effective in permanently keeping the carbon dioxide sequestered in the oceans. Environmental groups worry about safety aspects, and government agencies are concerned about the lack of laws to regulate ocean fertilization, the article suggests.

Chemical & Engineering News: �Fertilizing the ocean with iron.

Chemistry news archive 2008 - ordered by month














Further Information:


 Site Information:


The author- or copyrights of the listed Internet pages are held by the respective authors or site operators, who are also responsible for the content of the presentations.


April 29, 2011

Site URL:



Chemistry, news archive, april, april, 2008




Chemistry Information not found? Try this form:


Custom Search

Internetchemistry � 2007 - 2008 A. J.