Japanese researchers have built a miniature pump that's driven by living cells cultured from a rat's heart muscles. Instead of batteries, the pump is powered by a nutrient bath. Someday, this kind of bio-mechanical pump could be integrated into medical implants or labs-on-a-chip. According to the scientists from the University of Tokyo and the Japan Science and Technology Agency, the next step is to integrate chambers and valves to better control the liquid being pumped. From New Scientist:
The main part of the pump is made from a flexible polymer sphere 5 millimetres in diameter. Teflon capillary tubes measuring 400 microns in diameter are inserted into opposite sides of this sphere.
A cell-friendly protein coating is then added to the sphere followed by a sheet of pulsing cultured heart cells. After just an hour the cells are firmly attached and begin driving the pump.
To test the pump, the researchers placed it in a nutrient medium at human body temperature (37°C). They watched through a microscope as small polystyrene balls contained with a fluid moved through the pump's tubes. The pump operated continuously for six days in testing.
I asked Amy Parness, the co-founder of Sparkle Labs, maker of fantastic educational electronics kits, to write a Medium post about gender and the business of being a maker business person. Her terrific essay calls out the problems with “pink girly engineering kits.” From Medium:
Zero UI is the new term for “invisible interfaces”—what happens in the future when all the clicking and tapping and typing is history: “If you look at the history of computing, starting with the jacquard loom in 1801, humans have always had to interact with machines in a really abstract, complex way.” [Fast Company]
It’s time for a power upgrade — throw out that tired-out power strip and swap in this family-size USB charger, packed with 6 high-speed ports. With a built-in control chip, Kinkoo optimizes each port to ensure the fastest charging possible for all your devices. The Kinkoo is made from high-grade and durable materials so you […]
Watching Netflix, Hulu or other streaming services can unfortunately be difficult while traveling outside the US. Rather than bypass these restrictions with the help of a complex and slow VPN, choose a faster and simpler solution with Getflix. Instead of rerouting all your Internet traffic through a different server, this handy service only routes the […]
Shake, stir, and muddle your way to delicious homemade cocktails with this must-have bar set. Expect only the finest quality tools from MakersKit — enabling you to unleash your inner mixologist.Top 12 Favorite Things of 2014, Sunset MagazineQuart-size vintage-style Mason jar shakerRetro double jigger for accurate measurementsStrainer & spouts for a mixologist-style smooth pourHardwood muddler […]