Biopen
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'Biopen' lets doctors 3D print cartilage during surgery
If you need knee replacement surgery in the future, doctors may be able to create a custom-made joint from your own stem cells. A team from St Vincent's Hospital, Melbourne, have developed the Biopen, a type of 3D printer that uses "ink" made from hydrogel and stem cells. While 3D printing stem cells isn't new, the exact shape of a patient's cartilage often can't be known until they're cut open. Using the device, surgeons can precisely customize the joint to the patient with surgical "scaffolds," then permanently harden the biogel using ultraviolet light.
Inhabitat's Week in Green: SuperPier, reversing the aging process and an artificial, self-regulating heart
Each week our friends at Inhabitat recap the week's most interesting green developments and clean tech news for us -- it's the Week in Green. Well folks, we've made it through two major holidays, with just one more to go. We can't look into a crystal ball to see what 2014 has in store for us, but looking into Rawlemon's Betaray prototype might be the next best thing: It's a giant transparent marble capable of concentrating solar energy 10,000 times. If hanging out with all those nieces and nephews over the holidays has you feeling your age, you'll be thrilled to know that Harvard scientists have successfully reversed the aging process in a group of laboratory mice. And if you're already bored with typical 3D printing news, here's something new: Boots Industries just developed a new 3D printer that's capable of replicating itself.
Researchers developing danger-sensing BioPen
Scientists at Ben Gurion University in Israel are out to make detecting dangerous biological agents as simple as a pregnancy test with their yet-to-be-completed BioPen, which they say could eventually be in use everywhere from the battlefield to the veterinary lab. The pen uses a modified form of Enzyme-Linked Immunosorbent Assay (or ELISA) antigen detection to detect potentially harmful compounds, and can apparently also be used to determine if water is drinkable, along with ratting out environmental toxins, Ebola, Hepatitis B and C, Dengue, West Nile virus, and bird flu, among other nasty things. It works by taking a blood sample with a disposable tip, which is then automatically processed in the non-disposable cap, delivering the verdict in twenty minutes or less. Of course, they haven't actually gotten it into pen size yet -- for that, they're looking for one or two million dollars of funding -- but when/if it gets fully developed, they foresee the BioPen being a fairly affordable option, costing about $15 per test.
