An interesting technology developed in Sweden using biofilms may combine efficient treatment of waste water with low-cost production of bioplastics.
In the MBBRTM biofilm technology, communities of micro-organisms (called biofilms) grow within engineered plastic carriers, which are designed with high internal surface area. Pollutants that need to be removed are food or substrate for growth of the biofilm. Design of the plastic carrier (shown in image above) is critical to rapidly transfer oxygen to the microorganisms. The MBBRTM biofilm technology is patented by AnoxKaldnes, which is now part of Veolia Water Systems and Technologies of St. Maurice, France.
AnoxKaldnes is now researching the potential of using the biofilm technology to produce polyhydroxyalkanoates (PHAs), polymers that are “energy reserves” for these bacterial microorganisms. PHAs have mechanical properties comparable to polypropylene, but are costly because current production systems are based on pure cultures of bacteria.
In the AnoxKaldnes’ approach, the complex bacteria in a wastewater treatment plant are used instead of a pure culture of PHA-producing bacteria. The process configuration and conditions are used to favor the enrichment of PHA production.
Inspired by the hooks a parasitic worm uses to penetrate its host's intestines, the Karp Lab has invented a flexible adhesive patch covered with microneedles that adheres well to wet, soft tissues, but doesn't cause damage when removed.
Researchers at the Missouri University of Science & Technology have designed a new nanoscale material that can transmit light faster than the 186,000 miles per second it usually takes to travel through air.
It has often been said that as California goes, so goes the nation. This spring, the state's wind power is setting energy generation records and solar energy generation is expected to rise sharply during the second half of 2013.
A quick look into the merger of two powerhouse 3D printing OEMs and the new leader in rapid prototyping solutions, Stratasys. The industrial revolution is now led by 3D printing and engineers are given the opportunity to fully maximize their design capabilities, reduce their time-to-market and functionally test prototypes cheaper, faster and easier. Bruce Bradshaw, Director of Marketing in North America, will explore the large product offering and variety of materials that will help CAD designers articulate their product design with actual, physical prototypes. This broadcast will dive deep into technical information including application specific stories from real world customers and their experiences with 3D printing. 3D Printing is