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American Chemical Society


CRISPR's growing pains

Recent studies have raised safety concerns over CRISPR's precision in human cell lines, but companies are forging ahead with therapies. The technology makes double-stranded breaks at specific sites in DNA to repair defective genes.

SourceAmerican Chemical Society·JournalChemical & Engineering News·DateJul 11, 2018

Thermal camouflage disguises hot and cold

A new thermal camouflage system has been developed by researchers, allowing it to rapidly adapt to different temperatures and become indistinguishable from its surroundings. The system, which contains layers of graphene and an ionic liquid, can be applied to a variety of surfaces and is thin, light, and flexible.

SourceAmerican Chemical Society·JournalNano Letters·DateJun 27, 2018

Rethinking recycling

Scientists are developing new recycling technologies to break down plastics into reusable materials. Current methods use mechanical processes that partially degrade polymers, reducing product quality. Researchers are exploring alternative approaches, including chemical reactions and biological enzymes to speed up the process.

SourceAmerican Chemical Society·JournalChemical & Engineering News·DateJun 20, 2018

Interest in tandem solar cells heats up

Recent improvements in perovskite alternatives are moving tandem devices closer to market with efficiencies similar to commercial silicon modules. Researchers have achieved lab device efficiencies up to 26.4 percent by tinkering with material composition and encapsulating cells in protective coatings.

SourceAmerican Chemical Society·JournalChemical & Engineering News·DateJun 13, 2018

Attacking bacteria with shark skin-inspired surfaces

Researchers have designed a coating infused with antimicrobial agents and mimicking the patterned diamond-like texture of shark skin. The coating effectively killed over 95% of E. coli and 80% of Staphylococcus aureus bacteria when exposed to UV light, making it a potential solution to combat hospital infections.

SourceAmerican Chemical Society·JournalACS Applied Materials & Interfaces·DateJun 13, 2018

Sensor detects whiff of bad breath

Researchers developed a sensor that can detect halitosis with high sensitivity and portability, providing doctors with a convenient test for diagnosing the condition. The sensor uses a color-changing chemical reaction to detect traces of hydrogen sulfide gas in breath samples.

SourceAmerican Chemical Society·JournalAnalytical Chemistry·DateJun 6, 2018

Inside the brains of killer bees

Researchers examined neuropeptide changes in aggressive and non-aggressive Africanized honeybees, finding that specific peptides can trigger aggression. The study provides new insights into the neurological basis for honeybee behavior, highlighting the complex interplay between genetic and environmental factors.

SourceAmerican Chemical Society·JournalJournal of Proteome Research·DateJun 6, 2018

Sniffing out real truffles

Researchers developed a technique to distinguish between natural and synthetic truffle compounds using carbon isotope ratios. The method can reliably detect foods containing synthetic truffle aroma or a mixture of synthetic and natural aromas, helping to fight food fraud.

SourceAmerican Chemical Society·JournalAnalytical Chemistry·DateMay 30, 2018

Cultivating cannabis

State agricultural organizations and researchers are working to improve cannabis cultivation through biological means of pest control and sequencing the cannabis genome. This effort aims to increase the crop's value by providing better growing conditions and fertilizers, ultimately reducing the demand for trained scientists.

SourceAmerican Chemical Society·JournalChemical & Engineering News·DateMay 23, 2018

Beef peptides block bitter tastes

Researchers have discovered that beef peptides can block bitter taste receptors on the tongue, potentially leading to improved flavors in food and medicine. The most effective peptides were produced through enzymatic hydrolysis using trypsin and pepsin enzymes.

SourceAmerican Chemical Society·JournalJournal of Agricultural and Food Chemistry·DateMay 16, 2018

Diagnosing breast cancer with an imaging pill

Researchers developed a pill that can detect breast cancer in mice using near-infrared light, reducing the need for mammograms and minimizing radiation exposure. The imaging agent was found to bind specifically to cancer cells with high accuracy, paving the way for potential future applications.

SourceAmerican Chemical Society·JournalMolecular Pharmaceutics·DateMay 16, 2018

Nutmeg's hidden power: Helping the liver

Researchers have discovered how nutmeg helps protect the liver, using a mouse animal model of liver toxicity. The spice was shown to restore healthy levels of lipids and acylcarnitines, and a specific compound, myrislignan, had a strong protective effect against liver damage.

SourceAmerican Chemical Society·JournalJournal of Proteome Research·DateMay 9, 2018

A detective story of wildfires and wine

Scientists are making progress in understanding 'smoke taint' in wine after wildfires, discovering links between volatile phenols and glycoconjugates. The study found that fermentation can increase smoky compounds, complicating efforts to remove taint from tainted wines.

SourceAmerican Chemical Society·JournalChemical & Engineering News·DateMay 9, 2018

Improving 3-D printing of plastic parts

Researchers developed structured core-shell polymer filaments to improve the strength of 3-D printed plastics. The new filaments have a polycarbonate core and an olefin ionomer shell, which self-reinforce the printed parts and make them more resistant to impacts.

SourceAmerican Chemical Society·JournalACS Applied Materials & Interfaces·DateMay 2, 2018

Sunlight works against oil clean-up efforts

Researchers found that sunlight has a significant impact on oil clean-up efforts, decreasing dispersant effectiveness by four-fold. The study's findings suggest that photochemical oxidation, triggered by sunlight, is a dominant weathering process that should be considered in future field manuals and oil spill response guides.

SourceAmerican Chemical Society·JournalEnvironmental Science & Technology Letters·DateApr 25, 2018

Pepper plant sops up personal care product antibiotic

Researchers found that pepper plants metabolize triclocarban, an antibiotic commonly used in personal care products, into other molecules. The study suggests that these metabolites may have negative health effects, highlighting the need for further research on the impact of environmental triclocarban exposure on human health.

SourceAmerican Chemical Society·JournalJournal of Agricultural and Food Chemistry·DateApr 18, 2018

Harvesting water from fog with harps (video)

Researchers have developed a type of 'harp' to collect fresh water from fog, outperforming traditional mesh devices. The new harp technology consistently collected more water than equivalent meshes at all wire diameters, with the finest wires collecting over three times the amount.

SourceAmerican Chemical Society·JournalACS Applied Materials & Interfaces·DateApr 18, 2018

Portable device to sniff out trapped humans

Scientists have developed a portable sensor array that can detect tiny amounts of chemicals emitted by humans, even at levels as low as three parts per billion. The device is light, affordable, and compact, making it ideal for first responders to carry or drones to use in search and rescue operations.

SourceAmerican Chemical Society·JournalAnalytical Chemistry·DateApr 18, 2018