Taking inspiration from trees, scientists have developed a battery made from a sliver of wood coated with tin that shows promise for becoming a tiny, long-lasting, efficient and environmentally friendly energy source. Their report on the device — 1,000 times thinner than a sheet of paper — appears in the journal Nano Letters.
Promoting Public health: Toward a vaccine for methamphetamine abuseToday’s solution addresses the development of a potential vaccine to fight methamphetamine abuse. Methamphetamine abuse costs the United States more than 23 billion annually in medical expenses, law enforcement costs, and lost productivity.
Providing Safe Foods: Safety of nanoparticles in food crops is still unclearToday’s solution sounds a warning bell about the much-anticipated new era of nanoagriculture — using nanotechnology to boost the productivity of plants for food, fuel, and other uses.
Developing New Materials: Using banana peels to purify waterA study in the American Chemical Society’s journal, Industrial and Engineering Chemistry Research, reports that minced banana peel performs better than an array of other water purification materials and can do so in a sustainable way.
Our Sustainable Future: Biodegradable plastic from milk and clayWith continuing concern about plastic waste accumulating in municipal landfills, and reliance on imported oil to make plastics, scientists have created an ultra-light biodegradable foam plastic material made from two unlikely ingredients.
Promoting Public Health: Black rice bran may fight inflammationScientists are reporting evidence that black rice — a little-known variety of the grain that is the staple food for one-third of the world population — may help soothe the inflammation involved in allergies, asthma, and other diseases.
Supplying Safe Drinking Water: Electrified nano filter promises to cut costs for clean drinking waterScientists are reporting development and successful initial tests of an inexpensive new filtering technology that kills up to 98 percent of disease-causing bacteria in water in just seconds without clogging.
Our Sustainable Future: Saving energy by reducing food wasteA new study published in the American Chemical Society’s Environmental Science and Technology journal provides a compelling new reason not to waste food. It saves energy, lots of money at home and fights global hunger.
In the green of health: Just five minutes of green exercise optimal for good mental healthNew research suggests that just five minutes of outdoor activities, such as exercising in a park, working in a backyard garden or walking on a nature trail, will benefit mental health.
Future Cities: Nanotechnology promises more sustainable buildings, bridges, and other structuresBricks, blocks, and steel I-beams — step aside. That’s because scientists are reporting that a new genre of construction materials, made from stuff barely 1/50,000th the width of a human hair, is about to debut in the building of homes, offices, bridges, and other structures. The new report highlights both the potential benefits of these nanomaterials in improving construction materials and the need for guidelines to regulate their use and disposal. The report appears in the monthly journal ACS Nano.
Developing new sources of energy: Producing cost-effective biodiesel from sewage sludgeIntro theme and music by Kevin MacLeod. Creative Commons licensed audio from freesound.iua.upf.edu.