Mostrando entradas con la etiqueta Proceso. Mostrar todas las entradas
Mostrando entradas con la etiqueta Proceso. Mostrar todas las entradas

lunes, 13 de enero de 2014

KI Introduces the World's First Carbon-Negative Chair Made with AIrCarbon

Two childhood friends spent a decade, beginning in college, figuring out how to cheaply make plastic from carbon that's been captured from the atmosphere.

(Photo: Dan MacMedan, USA TODAY)
Story Highlights
While in college, two friends set out to turn air pollution into plastic
Their decade-long journey has led to an award-winning carbon-based product
They aim to reduce global warming by capturing heat-trapping carbon emissions

A decade ago in his Princeton dorm room, Mark Herrema had an aha moment. He read a newspaper story about the rise in heat-trapping methane emissions from dairy farms and decided to do something about it.

He thought — why not pull the carbon from the air and use it to make stuff? A politics major who also studied chemistry, he teamed up with childhood friend Kenton Kimmel, a biomedical engineering student at Northwestern University. They took odd jobs after graduation to fund their research.

"I was a bellhop and Kenton was a valet," says Herrema, recalling how they worked 14 to 16 hours every day — even holidays — for years to pay their bills and test their ideas in rented lab space.

Industry experts told them it was a fool's errand. For good reason. Scientists had spent decades trying to capture carbon and use it to make plastic but couldn't do it cheaply enough. The two friends cracked the code by developing a ten-times more efficient bio-catalyst, which strips the carbon from a liquefied gas and rearranges it into a long chain plastic molecule.

Mark Herrema shows a container of the plastic pellets that his California-based company, Newlight Technologies, makes from recycled methane gas.(Photo: Dan MacMedan, USA TODAY)

The result? Today, the 31-year-old co-founders of California-based Newlight Technologies have two factories that take methane captured from dairy farms and use it to make AirCarbon — plastic that will soon appear in the form of chairs, food containers and automotive parts. Coming next year: cellphone cases for Virgin Mobile.

"You'll be able to hold carbon in your hand," Herrema says of the products, which an independent lab says remove more carbon from the atmosphere than their manufacturing emits. By replacing oil-based plastics, he says he wants to help reduce global warming: "We actually want to change the world."

"This will be a paradigm shift in our industry," says Dick Resch, CEO of furniture maker KI, saying AirCarbon will produce the first carbon-negative furniture. KI, which has backed Newlight for eight years and holds exclusive industry rights to its product, plans next year to sell AirCarbon chairs and eventually other products.

"I wish I had been smart enough to figure this out," says William Dowd, former global director of industrial biotech research and development at Dow Chemical. He says venture capitalists asked him to look at Newlight's work, but he initially demurred, doubting it would break ground. "I was astounded by what they were able to do."

STORY: How technology can halt climate change


Dowd, who is not a Newlight investor, says AirCarbon closely resembles polypropylene and could be a cheaper alternative. He doubts it will do much to reduce global warming, citing the enormity of greenhouse gas emissions from power plants alone.

"It can't be a significant contributor to solving the (climate) problem," agrees Harvard physicist David Keith, adding the supply chain isn't big enough to absorb the 15-plus tons of carbon dioxide emitted per capita each year in the United States. Keith started Calgary-based Carbon Engineering, co-funded by Bill Gates, to capture carbon at industrial scale and use it to make low-carbon fuel.

Still, "it's a step in the right direction," says Brent Ehrlich, products editor of BuildingGreen, a company that studies the construction industry. Ehrlich says AirCarbon could replace a lot of oil-based plastic, adding: "It could potentially add up."

Herrema says his creation is much more than "a drop in the bucket" and is just starting to take off. AirCarbon was chosen as "bio-material of the year" by the 2013 International Conference on Bio-based Plastics and Composites.

The winners of the innovation award have been elected by the participants of the conference.

Though their journey had many "tough" months, Herrema says he and Kimmel had enough naivete to believe they'd succeed. "We always felt," he says, "that a breakthrough was just around the corner." 
KI introduces the world's first carbon-negative chair made with AirCarbon™—a revolutionary, paradigm-shifting thermoplastic developed by California-based Newlight Technologies. Newlight's patented manufacturing technology captures carbon that would otherwise be in the air and converts it into AirCarbon. KI will be the exclusive provider of AirCarbon in the contract furniture industry. "By using carbon that would otherwise be in the air we are breathing right now, AirCarbon turns everyday goods into products that actually improve the environment," said Mark Herrema, CEO, Newlight. "Combined with a cost profile that is more favorable than oil-based plastics, AirCarbon has the potential to change the world." Upon completion of lifecycle analysis and environmental testing in early 2014, KI will begin introducing AirCarbon into some of its most successful product lines, including the Strive and Grazie seating collections.


ORIGINAL: USA Today

sábado, 14 de septiembre de 2013

A New Way of Seeing

ORIGINAL: The Scientist
By M. Joan Dawson
September 1, 2013

Inspiration and controversy attended the birth of magnetic resonance imaging, a diagnostic technology that changed the course of human medicine.
MIT PRESS, AUGUST 2013
Thomas Huxley, in his presidential address to the Royal Society in 1885, observed: “What an enormous revolution would be made in biology if physics or chemistry could supply the physiologist with a means of making out the molecular structure of living tissues comparable to that which the spectroscope affords to the inquirer into the nature of heavenly bodies.

Andrew Huxley, a grandson of Thomas, noted in his own inaugural address in 1980 that his grandfather’s wishes came true with the invention of zeugmatography—better known today as magnetic resonance imaging, or MRI—by Paul Lauterbur in 1971. MRI would change the course of medicine. It became a leading diagnostic tool because it images the soft tissues of the body anatomically, biochemically, and functionally. It is noninvasive and safe, and unlike X-rays or CAT scans, uses no ionizing radiation. My recently published book, Paul Lauterbur and the Invention of MRI, is the story of the man, who was my husband, and his invention.

One day in 1971 Paul happened to observe some nuclear magnetic resonance (NMR) measurements on normal and malignant tissues and saw that the signals differed markedly. But the tissue samples were being cut out of rats, and Paul thought such measurements could never be very useful in research or medicine. “It didn’t seem right to kill the patient to diagnose the illness,” he wryly said to me. “It was a bloody messy affair, not the sort of thing chemists are used to seeing. As a naïve chemist, I couldn’t imagine cutting people up to see if they were sick or not.

He felt there had to be a better way. If he could find a way to localize the NMR signals to specific places in a patient without using harmful invasive procedures, well, that would be a different matter altogether. Physicians could then peer into any part of the body remotely to discern what the problem was, and the patient would be unaffected by the analysis.

That same evening he figured it out. He had taken a fast-food dinner break from work with a friend. “On the second bite of a Big Boy hamburger,” just as he was explaining that the physics of NMR precluded imaging, in midsentence, he arrived at the principle of MRI. “I realized that inhomogeneous magnetic fields labeled signals according to their spatial coordinates, and made a leap of faith to the conclusion that the information could be recovered in the form of images.” Paul ran out to buy a notebook at a nearby drugstore. He spent much of the night refining his thoughts and convincing himself that he was not just on a wild-goose chase. By morning the book was bursting with ideas. This notebook not only describes the fundamentals of MRI but also predicts a great deal of its development during the following 25 years, and into the future.

The early days of MRI were fraught with obstacles. The first and rather blurry images, published in a 1973 issue of Nature, were of two tubes filled with deuterium oxide (D2O). Those images—created with what Paul named zeugmatography after the Greek zeugma, “that which is used for joining”—did not conjure up visions of modern medical diagnosis in anyone’s mind. As the technique developed it was met both with derision (“It violates the Heisenberg uncertainty principle!” said some detractors) and with claims by others to have invented it. SUNY Downstate Medical Center professor Raymond Damadian famously published an ad in major newspapers around the world showing the Nobel Prize printed upside down when he was not included in the award for MRI in 2003. Paul Lauterbur and the Invention of MRI chronicles the life and work of Paul in MRI and other fields, as well as early work of other MRI researchers, including Damadian and Peter Mansfield, Paul’s Nobel corecipient. The story of the basic science behind MRI’s birth has already been told in the literature. My book looks deeper to tell the tale of the technology’s rocky journey to clinical utility.

M. Joan Dawson is Associate Professor Emerita in the School of Molecular and Cellular Biology at the University of Illinois at Urbana-Champaign. She studies function and metabolism of living tissues using NMR spectroscopy and spectroscopic imaging. She was married to Paul Lauterbur from 1984 until his death in 2007. Read an excerpt of Paul Lauterbur and the Invention of MRI.

miércoles, 6 de junio de 2012

La Isla de las Flores



Lo que en principio no es más que la historia de un tomate, desde su origen en una plantación hasta el basurero, por obra y gracia del humor negro, poco a poco se transforma en una cruel y profunda reflexión sobre la condición humana. De la miseria humana, acaso sea más apropiado decir.

Isla de las Flores ganó el Oso de Plata en Berlín, fue elegido el corto del año 90 en Brasil y en 1995, fue incluido por la crítica francesa en la lista de los 100 cortometrajes más importantes del cine. Es el trabajo de un genio, sin lugar a dudas. 

ILHA DAS FLORES 35 mm, 12 min, cor, 1989.
Dirección: Jorge Furtado
Producción Ejecutiva: Monica Schmiedt, Giba Assis Brasil e Nora Goulart
Guión: Jorge Furtado
Dirección de Fotografia: Roberto Henkin e Sérgio Amon
Dirección de Arte: Fiapo Barth
Música: Geraldo Flach
Dirección de Producción: Nora Goulart
Montaje: Giba Assis Brasil
Asistente de Dirección: Ana Luiza Azevedo