Just beyond the leading edge of biomedical research lie the medical tools of the future, where smart tattoos monitor changes in glucose levels, living tissues and organs are printed on demand, and implantable electrodes connect the nervous system to prosthetic limbs.“It’s going to be a big deal, and I want to know all about it,” said Suraj Kannan ’14, a biomedical engineering concentrator who intends to pursue research in regenerative medicine and therapeutic tissue engineering.Kannan was among 18 students who took “Introduction to Biomaterials” (BE 191) last spring. The new course at the Harvard School of Engineering and Applied Sciences (SEAS) is taught by Jennifer A. Lewis, the Hansjörg Wyss Professor of Biologically Inspired Engineering.“Biomaterials is really the science of creating new materials for a biological purpose,” said Sarah Chapin ’16. “You need to know how these materials work, how you can create them, [and] how you can process them, in order to regrow any part of the human body or find something else to [replace a part] that was damaged.”The course quickly brings students up to speed, preparing them to contribute to University research, pursue summer internships, or take an idea conceived in the classroom to the next stage of development.“It’s a foundational course in biomedical engineering, whether you want to focus on medical devices, drug delivery, or tissue engineering,” Lewis said. “I want students to develop a toolbox based on understanding how materials and design influence the actual performance of whatever they’re making.”By the end of the semester, undergraduates Alex Bartlett ’17 and Jessica Turner ’16 had come up with a new treatment for basilar artery stenosis (the narrowing of a major artery in the brain), and could explain why their gel-based stent would be safer and more effective than three leading treatments. Godwin Abiola ’14, Brian Boursiquot ’14, and Katrina Williamson ’14 proposed an implantable heart patch that could store and release medication on demand for patients suffering tachyarrhythmia.“At other schools you wouldn’t necessarily have the opportunity to take something as detailed or in-depth on a particular area,” said Chapin, an engineering sciences concentrator in SEAS. “Here, that seems to be par for the course.”The syllabus Lewis designed with Travis Busbee and Ryan Truby, two graduate teaching fellows from her research group, leads students through a conceptual hierarchy, from the materials’ atomic and molecular structure to their macro-level properties. While learning basic science in the context of biomedical applications, the students pick up concepts such as the differences between metals and polymers, the fluid dynamics of diffusion, the physics equations that describe stress and strain, and the importance of rational design.Soft contact lenses, for example, are made of hydrogels. At the molecular level, these gels look like a mesh of interwoven strands that bond where they cross, with water filling the gaps. But hydrogels can be soft or stiff, stretchy or brittle, with large or small mesh, depending on the components used, the type of molecular bonds, and so on. An engineer who understands the chemical structure can manipulate it to target a particular function.And those functions are a matter of lively research. Faculty labs at Harvard have recently developed hydrogels that can deliver chemotherapy drugs in response to an ultrasound trigger; stretch, like cartilage, without breaking; or assist in vitro studies of breast cancer. Materials scientists here have also created a transparent audio speaker made of hydrogel, demonstrating its potential for use as an ion-conducting artificial muscle.Through hands-on lab exercises, students in BE 191 learned how to synthesize hydrogels, cure them with UV light, vary the composition to produce specific properties, and measure the gels’ rheological and mechanical behavior. Other in-class activities were designed to spur critical thinking and discussion.“We had them do hands-on activities on the key topics before they were introduced in the lectures, to get them to think before they learned, by having to actually confront something real and work their way through it,” said Lewis.“That was cool,” said Bartlett, “to see the actual physical fabrication side rather than just talk about, ‘This is what would happen.’”Enhancing facilities for hands-on engineering education is a priority of the SEAS Capital Campaign. Additional instructional laboratories, modern design studios, flexible classrooms, and spaces for large, creative projects will be part of a new science, technology, and innovation community in Allston, of which SEAS will be the academic cornerstone.In the meantime, SEAS has invested in new equipment in its undergraduate teaching laboratories to support Lewis’ course: new desktop 3-D printers that can extrude soft materials, and new small-capacity load cells for measuring delicate hydrogels in a tensile testing machine. Lewis was recruited to Harvard last year with the help of a gift from Hansjörg Wyss. To start up her research program, SEAS provided a 4,500-square-foot laboratory, where her team uses — among other platforms — a unique 3-D printer that can pattern a wide range of functional materials with features smaller than 1 micron over large areas, all in a matter of minutes. Naturally, the syllabus for BE 191 included a unit on 3-D printing, an important biofabrication tool.“It helps that Dr. Lewis is sort of the master in this field,” said Kannan.Indeed, researchers in Lewis’ lab at SEAS and at the Wyss Institute for Biologically Inspired Engineering at Harvard, where she is also a core faculty member, recently 3-D-printed human tissue constructs that contained embedded vasculature and living cells; lithium-ion batteries the size of a grain of sand; and lightweight but strong carbon-fiber honeycombs. Students in BE 191 spent time in her lab and conducted two of their exploratory activities there.“It was a chance for them to see a cutting-edge platform and see how materials can be essentially assembled with a multiscale approach, from designing the biomaterials used to construct them — the inks, if you will — all the way to printing complex 3-D architectures,” Lewis said.If the lines are blurring between instructional and professional labs, Lewis said, it’s deliberate.“I think it’s really important for students to walk into the ‘real’ labs and say, ‘Wow, this is the 3-D printer they’re using, versus my little desktop machine’ — to see that while some of the concepts translate, there’s a whole science behind it that goes beyond just, ‘I push a button and I get something,’” she said. “I think it’s essential for them to see that the things they’re learning in class are being translated in real time in faculty labs that they can join through an undergraduate research experience or a thesis project.” (In fact, Chapin will join the Lewis Lab this fall to carry out an independent research project on biofabrication.)“The students who have taken Professor Lewis’ course now understand what it means to be a materials scientist, and what it takes to develop the next generation of materials for tissue engineering,” said Anas Chalah, executive director of active learning at SEAS. “I think the students get extraordinary benefit from the synergy between our active learning curricula and the world-class engineering research that’s ongoing in these labs.”Bartlett, who enrolled in BE 191 as a freshman, was impressed: “When you do a lab in high school, it’s on a black desk that you also use for homework and eating and whatever else,” she said. “When you do labs here, you’re in a place where, really, innovation is happening — and you get to use it, too.”
Ex Super Eagles player Christian Obodo escapes unhurt as he was involved in a ghastly motor accident at Ozoro Delta state over the weekend. https://t.co/2eShrVRWmA— CheckAmRadio (@AmCheck) January 27, 2020 Obodo, 35, revealed in an interview how he escaped from the accident which occurred while he was on a family visit from Italy recently. Former Super Eagles and Fiorentina Midfielder, Christian Obodo, has cheated death again, as he just survived an auto crash this month in Nigeria. According to him, the first accident occurred on his way from Enugu and the second in Ozoro, Delta State. He was driving in the company of his 65 year-old Mother, Younger brother and two Cousins on both occasions. Read Also:Bonfrere cries out: Nwobodo took my Olympic medal The former Torino and Udinese player shared a picture of the wreckage on social media. FacebookTwitterWhatsAppEmail分享 Advertisement Loading…
B&H young judo player Aleksandra Samardžić won the bronze medal at the European Championship- U18, held last weekend in Athens, announced Judo Federation of B&H.Our successful young competitor in the category of up to 70 kg to the medal came through victories over representatives of Sweden (Kalpakidou Katerina), Turkey (Erdogan Semanur) and France (Tarting Juliet), while in semifinals was defeated by Russian (Tokareva Ekaterina), and in the fight for the third place won over representative of Netherlands Walhout Chantel, with the maximum result 10:0.429 competitors from 42 countries participated in this championship.“The excellent form of our best competitor pleases us especially when we know that Aleksandra will perform at the upcoming Youth Olympic Games in Nanjing 2014. So far, she won two times silver medals at the European Championships for Cadets, third place at the EYOP and two times won at the senior European Cup, and this last success confirmed that she is a new young star in judo sport. Her coaches Arijana Jaha and Branislav Crnogorac are satisfied with the performance of this young top athlete and they estimate that her time is yet to come”, announced in the statement of Judo Federation of B&H.(Source: Fena)
The former player for the national team of Bosnia and Herzegovina Hasan Salihamidzic became the new Sports Director of Bayern Munich.The popular Braco is a legend of the Bavarian club for which he played nine seasons and his appointment was a thrill for fans.As the director Karl-Heinz Rummenigee pointed out, Salihadmizic knows Bayern very well.Rummenigge had only positive things to say for the former Dragon.“Hasan speaks five languages,” Bayern’s director said and continued: “he’ll be able to successfully communicate with all of our foreign players.”Salihamidzic played for Hamburg, Juventus and Wolfsburg, but left his mark the most on Bayern, with which he won six Budesliga championships and one Champions League championship. In the national uniform, he played 42 times and scored 6 goals.(Source: N1)
The suspect made off with cash and pre-fried tostada shells. The police department says he may also be responsible for at least two other burglaries inside that Taco Bell, which is located at the Boynton Beach Mall, earlier this month.Anyone with information about the burglar is asked to call the Boynton Beach Police Department (561) 732-8116, or Palm Beach Crime Stoppers at (800) 458-TIPS. A local police department is looking for a unidentified man who was caught on camera robbing a Taco Bell, and helping himself to some of the restaurant’s ingredients in the process.The Boynton Beach Police Department released surveillance video last Thursday that shows a man wearing a hooded sweatshirt moving through the restaurant.
Climate activist Greta Thunberg is Time magazine’s Person of the Year for 2019.The 16-year-old Swedish climate activist has become the face of the climate change movement and she’s the youngest person to ever receive the distinction. Time magazine has given its Person of the Year award every year since 1927, to the person or persons who “most influenced the news and the world” in the past year.Thunberg beat out President Trump, House Speaker Nancy Pelosi, the Hong Kong protesters, and “The Whistleblower” – the anonymous CIA officer who triggered the Trump impeachment inquiry.
OCEARCH says that seven of its tagged sharks have pinged with their location during recent days.The ocean data-collection organization collects samples from hundreds of sharks, dolphins, seals and other animals.Researchers then use that information to learn about migration patterns and about sharks’ lives.According to the World Wildlife Federation, great white sharks are the world’s largest predatory fish. They are known for ripping bite-sized chunks out of their prey and swallowing them whole. The holidays are apparently bringing more than the typical tourists and snowbirds to South Florida.A group called OCEARCH has tagged and tracked a 12-foot, 4-inch long great white shark to the waters south of Key Biscayne, near Miami.The adult male shark, who has been named Ironbound, weighs 998 pounds.He was caught and tagged on October 3 near Lunenburg, Nova Scotia, and has traveled more than 1,400 miles down the East Coast since that time.The shark is named after the West Ironbound Island, which is near where he was caught.The Tracker is extremely active right now with 7 white sharks pinging in over the last 2 days. Ironbound checked-in near Miami and is the farthest south while Shaw pinged off Cape Hatteras and is the farthest north. pic.twitter.com/eXR5oKlWhs— OCEARCH (@OCEARCH) December 25, 2019
For every $100 raised at Race for the Cure, Susan G Komen can fund a mammogram for a woman in need!Fundraising is easier than ever for the Susan G. Komen South Florida Race for the Cure. Register at KomenFlorida.org/race, and connect your Facebook to let friends know YOU can save lives with their support!
Oprah Winfrey kicked off her nationwide wellness tour, called “Oprah’s 2020 Vision: Your Life in Focus,” in Broward County on Saturday with the message that humans are instinctively happy and collaborative, as well as trusting and respectful.The talk show host and media executive told a sold-out audience of more than 15,000 people, “Our desires are the same. We want health. We want abundance. We want to be prosperous for ourselves and our families. We want to be connected … and we want to be uplifted in our lives.”The daylong event, which incorporated elements of a health seminar, blended with a celebrity fan fest, political campaign and church revival, began a nine-city run at the BB&T Center in Sunrise, highlighted by Q&A session with singer-actor Lady Gaga, and an appearance by dancer-actor Julianne Hough.Gaga shared with the audience her experience of being raped repeatedly at age 19, and the resulting mental issues that manifested in pain from fibromyalgia.Ongoing psychiatric therapy and medication, in addition to good friends, have allowed her to retake control of her life, she added. The singer says: “I believe all things were supposed to happen. Because God was saying to me, ‘I am going to show you pain and then you are going to help people in pain.’”Winfrey touched on rumors of a 2020 presidential run, saying, “We did talk about Oprah 2020. That has a nice ring to it, I think. And then, we knew for sure, that people might get, uhhhh, the wrong idea. If we were talking about something other than wellness.”Fort Lauderdale, I’m on my way to kick off my @ww_us 2020 Vision Tour in your city! Let me know if you have any questions for @ladygaga and I might just get you an answer this Saturday. Get tickets to join the party: https://t.co/F8xR5l0b9k #Oprahs2020VisionTour pic.twitter.com/DzNLYv1Ags— Oprah Winfrey (@Oprah) January 2, 2020 She continued, “In fact, 2020 is an important year for so many reasons. Because there are people who would very much like to highlight all of the differences and the divide that we are experiencing in our country. But I was saying to reporters yesterday, I said, ‘You’re going to come to this room and you’re going to see people from red states and blue states and purple states and no states and out of states and out of town and out of the country and everybody is going to be in agreement on one thing. That we all want to get better in our lives!”Hough, who is an Emmy-winning choreographer, two-time winner of “Dancing with the Stars,” and served as a judge on the most recent season of “American’s Got Talent,” led a dance session in the afternoon.Oprah’s best friend, Gayle King, was in the audience, as were Fort Lauderdale Mayor Dean Trantalis, fashion icon Iris Apfel, Adrienne Bosh, wife of former Miami Heat star Chris Bosh, and Instagram fashion arbiter Eva Chen.
A 52-year-old man in Albert Road, Portsmouth was enjoying a kebab at a local establishment when a fight broke out around him. So what did he do? Continue to enjoy his food, of course.