Showing Spotlights 73 - 80 of 85 in category All (newest first):
Following up on yesterday's Nanowerk Spotlight on nanobionics, today we'll look at bionics and other nanotechnology applications that could benefit disabled people. A range of applications and products with a combination of nanotechnology, biotechnology, and information technology are under development to directly improve the lives of people with severe injuries or medical conditions. Solutions range from better implants and prosthetics to brain-machine interfaces and they already are in the early stages of development and have working prototypes. While these are technical solutions to medical issues, and also a potential path towards transhumanist dreams, there is a number of social issues surrounding them that are rarely discussed. For instance, some 180 million young people between the ages of 10-24 live with a physical, sensory, intellectual or mental health disability significant enough to make a difference in their daily lives. The vast majority of these young people, some 150 million (80%) live in the developing world. They have limited access to education, employment and basic health care, and generally experience profound economic and social exclusion. The question needs to be asked whether the nano- and biotechnologies discussed to help the developing world are designed in a way to take into account the specific needs and realities of disabled people. Even if they did - and they do not - the next question is whether all these wonderful new technologies are really affordable for developing countries, or in other words: who pays for them? And finally, does the right social framework exist to take advantage of them?
Jul 18th, 2007
New technology, whether it is a novel cancer treatment or an innovative approach to farming, almost always comes with risk. Those risks are often first - and most severely - felt by industry workers, and nanotechnology is no different. Today, workers around the world are exposed to nanoparticles on a daily basis. There is much speculation, yet so far, little definitive information about how exposure affects workers. A report released by the International Council on Nanotechnology in November 2006, offers a clear picture of the situation. "The properties for which novel nanoscale materials are designed may generate new risks to workers, consumers, the public, and the environment. While some of these risks can be anticipated from experiences with other synthetic chemicals and with existing knowledge of ambient and manufactured fine particles, novel risks associated with new properties cannot easily be anticipated based on existing data." Questions, such as how to measure toxicity and how to monitor and control exposure, remain unanswered.
Jul 9th, 2007
Having written in this space about the (possibly) good and the (possibly) bad of food nanotechnology before, here is now a scientific approach to assessing how the public perceives nanotechnology in food and food packaging. Swiss social psychologist Michael Siegrist has looked into the issues of trust, risk and the public acceptance of nanotechnology before. Now, he and his colleagues have taken the area of nanofoods and tried to understand what factors influence the willingness to buy food that has been produced, processed or packaged with nanotechnology. Their conclusion: Perceived benefits seems to be the most important predictor for willingness to buy.
May 8th, 2007
For centuries, man has searched for miracle cures to end suffering caused by disease and injury. Many researchers believe nanotechnology may be mankind's first "giant step" toward this goal. Whether these beliefs are based on facts or hope, many corporations and governments are willing to invest a great deal of money to find out what happens when nanotechnology is used for medical applications - the emerging field of nanomedicine. Hundreds of millions, if not billions of dollars have been invested by governments, such as the U.S. National Cancer Institute, and the private sector in nanomedicine research and nanotech-related life sciences ventures. The 2008 budget of the U.S. National Nanotechnology Initiative provides more than $200 million for the National Institutes of Health. The European Union, particularly Germany and the UK, and Japan are also investing heavily in this field. It is difficult to find fault with a technology that promises to cure cancer almost before it starts and prevent the spread of AIDS and other infectious diseases. Scientists around the globe are searching for ways to exploit nanoparticles to improve human health. However, there are toxicological concerns and ethical issues that come with nanomedicine and they have to be addressed alongside the benefits.
May 7th, 2007
Experts and the public generally differ in their perceptions of risk. While this might be due to social and demographic factors, it is generally assumed by scientists who conduct risk research that experts' risk assessments are based more strongly on actual or perceived knowledge about a technology than lay people's risk assessments. In the case of nanotechnology, surveys show that most people are not familiar with it. The public perception of an emerging technology will have a major influence on the acceptance of this technology and its commercial success. If the public perception turns negative, potentially beneficial technologies will be severely constrained as is the case for instance with gene technology. It seems plausible that the evaluation of new technologies, such as nanotechnologies, is guided by people's theories and values. For instance, people for whom the technological revolution is associated with positive outcomes - and who are not afraid of possible negative side effects of technological progress - may assess nanotechnology applications more positively than people for whom negative effects outweigh positive effects. Researchers in Switzerland conducted two studies which examined how lay people and experts perceived various nanotechnology applications and how companies address the public's concerns.
Mar 30th, 2007
As we reported today in our news coverage, the UK and the U.S. are to work together to develop a global science portal, making scientific information from many countries available via the internet. In contrast to the various national databases that already exist today, the new portal, to be known as "science.world", will build on the U.S. portal science.gov. The project has the goal of making the science offerings of all nations searchable in one global gateway. Given this comprehensive goal, and the rapidly gaining importance and wealth of nanotechnology related information, anything nanotech will have to be a significant part of this new library. One can't help but ask, though, if this effort by various nations' government agencies, led by the U.S. Department of Energy, is tax money well spent. Google, after all, is already developing such a service, called Google Scholar, and it beats all the existing government portals hands down.
Feb 20th, 2007
The nanoworld cannot be portrayed with a camera, nor can it be seen even with the most powerful optical microscope. Only special instruments have access to images of the nanoworld. A fascinating new exhibition "Blow-up: images from the nanoworld" in Modena/Italy shows the work of scientists associated with the National Center on Nanostructures and Biosystems at Surfaces in Modena, Italy, headed by Elisa Molinari. The images have been manipulated in a variety of ways by photographer, Lucia Covi. Covi is particularly sensible to the aesthetic paradigms of scientists: her gaze thus grasps essential aspects of the portrayed objects and allows her to shine them with a new light, as they are revealed now. This exhibition brings to the public images that are usually accessible to few, because they remain confined in the research laboratories, on the scientists' desks. The images are stills that, over time, have been put together from different framings, and that we can look at thanks to the mediation of machines. Some of them represent exceptional events, outstanding results that ended on the cover of scientific journals. Others were born from everyday research. All of them show a landscape that is being unraveled by scientists, scenery that is very different from the one we can see in the media, largely obtained through computer graphics and "artistic" interpretations, when not directly borrowed from science fiction.
Dec 29th, 2006
Nano-this and nano-that. Nanotechnology moves into the public consciousness. This 'nanotrend' has assumed 'mega' proportions: Patent offices around the world are swamped with nanotechnology-related applications; investment advisors compile nanotechnology stock indices and predict a coming boom in nanotechnology stocks with estimates floating around of a trillion-dollar industry within 10 years; pundits promise a new world with radically different medical procedures, manufacturing technologies and solutions to environmental problems; nano conferences and trade shows are thriving all over the world; scientific journals are awash in articles dealing with nanoscience discoveries and nanotechnology breakthroughs. Nanotechnology has been plagued by a lot of hype, but cynicism and criticism have not been far behind. The media can run amok when news about potential health problems with nanoproducts surface (as recently happened with a product recall for a bathroom cleaner in Germany). These discussions around nanotechnology epitomize the contemporary processes of making the future present. An interesting approach to dealing with the lack of consensus in the views on nanotechnology identifies eight main nodes of nanotechnology discourse and describes these "islands" of discussion, examines their interactions and degrees of isolation from each other.
Nov 27th, 2006