nanotechnology - Tag Archive

Why you need waterproof electronics

12 Replies Jonny Hankins

When I dropped my phone into the toilet I was amazed to see that it continued to work for a few seconds. All hope was quashed however 2 minutes later when it stopped, short, never to work again. I had only paid 26 dollars for it from ebay, but this was not the first time that such an incident had occurred in my household. My wife dropped her phone in the toilet on the day I bought it for her and I fell over whilst wading through a river in a drunken moment of foolhardiness and drowned my first mobile (and almost myself).

None of this need ever occur again however, thanks to nanotechnology. A company called Neverwet has designed an all purpose waterproof coating that can be sprayed on that repels water so well that they can even show a computer dipped into water while turned on still operates. Last year they won the Grand Prix Award as an innovative start up and their product is really quite impressive. Check out the video on their website.

A man working on a computer underwater

Mr Phelps at work

The technology has many applications, it can be used to protect materials used under the sea to prevent corrosion, fabrics or small articles can be either dipped or sprayed, but the most interesting application certainly seems to be in electronics. A mother board can be sprayed and then used in wet conditions without failing. A great breakthrough I think.

If you are interested in weatherproofing you should know that there are already many all weather computers on the market. Terralogic sell a range of rugged computers and accessories for work and military purposes. Obviously if you are carrying a computer on a battlefield it cannot be a domestic lightweight and easily damageable machine, so these beasts are designed to be shock and water resistant, and they come in military green so you stand out from the crowd in your local Cyber cafe.

If you really need to go and work underwater you can purchase the WetPC, designed for the Australian military by Kord Defence Systems. This little baby is designed for underwater note taking, and offers a host of improvements over previous attempts making it much more user friendly through the adoption of its 5 key system. Combinations of the keys perform different functions making the machine suitable for underwater archeology, research and engineering as well as water sports.

If you want to go one step further how about the underwater cell phone? This little package allows you to make a receive calls as you dive, and works either at sea or in the lake or pool at the bottom of the garden.

Underwater Phone

The Alpha underwater phone in use

Joking aside the technology is designed for commercial divers. The kit can be used with any phone that has a voice dialing system, as it sits within a face mask that is attached to a long lead with a floating buoy attached. The buoy hosts the broadcasting technology so that the user can connect to their normal service. All for about $1700 US. Take a look at the Ocean Reef company website for more details and to see what else tickles your fancy.

So just dip your HP into Neverwet for domestic use or go the whole hog with a military machine, the choice is yours, but in the days of rising sea levels it is always better to be prepared.

NanoArt

5 Replies Jonny Hankins

A couple of weeks ago whilst writing about nanotechnology and the associated risk involved in such engineering techniques I mentioned Nanoart.  This week I would like to expand and to present a gallery of examples.

nano playboy logo

To quote Cris Orfescu, founder of Nanoart 21, “NanoArt is a new art discipline at the art-science-technology intersections. It features nanolandscapes (molecular and atomic landscapes which are natural structures of matter at molecular and atomic scales) and nanosculptures (structures created by scientists and artists by manipulating matter at molecular and atomic scales using chemical and physical processes). These structures are visualized with powerful research tools like scanning electron microscopes and atomic force microscopes and their scientific images are captured and further processed by using different artistic techniques to convert them into artworks showcased for large audiences.”

One of the issues raised during discussion in my previous posts was about the usefulness and point of such artistic expression, so here I quote the NanoArt 21 website:

“The purpose is to promote  NanoArt worldwide as a reflection of a technological movement… a more appealing and effective way to communicate with the general public and to inform people about the new technologies of the 21st Century. NanoArt is aimed to raise the public awareness of Nanotechnology and its impact on our lives”.

There are several organizations that promote this form of expression and at least one international competition that offers cash prizes for the best examples (NanoArt 21 have an international competition). The German Centre for Research and Innovation hosted an exhibition of their collection in New York in 2011 and the number of artist/scientists involved seems to be growing.

The following gallery should give you an idea of this particular art form. Also take a look at the Nanobama here. The image is of nanotubes made in the shape of President Obama’s face, similar in style to the playboy above.

a guitar

A guitar

 

self explanatory

 

extra planetary

in blue

A nano landscape

You can find many other examples online. Do you like them? I personally like the 3D effect. It seems more accentuated because the images are created by electrons (electrically charged particles) rather than photons (particles of light). The electrons penetrate deeper into the structure creating images with more depth.

Nanotechnology, risks and benefits

15 Replies Jonny Hankins

Last year Hayley posted a really good article on this site entitled ‘What do we need to know about Nanotechnology?‘ She raised some important issues about the governance of such high technology including the facts that little research has been conducted into health implications, legal regulation is minimal and nobody really knows how much of this type of material is produced. It is however already everywhere, in cosmetics, car wax and sunscreen to name but a few.

She followed the post earlier this year with another, ‘Nanobots, the future in Nanotechnology‘. This is also an informative piece in which she describes how nanotech engineering is moving away from top down construction to a bottom up approach, and goes on to talk about the possibility of building autonomous and even self replicating robots on the nano-scale.

Last week I posted an article about synthetic biology, another branch of science that deals in the nano-scale. With synthetic biology one of the issues raised by Hayley, that of power source, is resolved, as the machines are in fact alive and get their power from the organism that they are implanted into. The two are very much related and entwined forms of science.

And all this leads me on to looking at regulation regarding these types of research and a recent publication entitled ‘A Research Strategy for Environmental, Health and Safety Aspects of Engineered Nanotechnologies’.

The document was prepared by the National Research Council and a pre publication copy is available from the National Academic Press for downloaded here.

This is a long and detailed document written with the help of a host of academics, and it raises some very important points about an industry that Barak Obama has placed at the forefront of his innovation policy. In this year’s budget Obama is asking for 123.5 million dollars to invest in nano-tech research, which if seen next to the relatively small investment of 34.8 million in 2005 signals the importance attached to this form of innovation.

Nanobama

But all of this investment is made in a technology that is as yet practically unregulated and severely lacking in health and safety legislation, with the problem being that exposure limits and contamination issues have yet to be formalized. All of this is despite the ever growing use of such particles in our everyday life.

The National Research Council document aims to develop such a research strategy starting from a conceptual framework for considering environmental, health and safety risks, through critical questions to understanding the problem, tools and approaches for identifying properties that may cause risk, resources needed and how to implement the strategy once it has been described.

The document is extremely thought provoking. The fact that safe (or dangerous) exposure levels to such particles have never been determined nor possible environmental release dangers quantified or analyzed seems to paint a picture of an entire industry that operates without a clear understanding of how to manage the risks involved in their work.

This week a rather alarming report was published on the Science News website in which scientists have discovered that exposure to nano-particles changes the way blood vessels in animals behave. They were not using a poisonous substance I might add, but a common compound of nano-particle size.

Now I am not a biologist but I imagine that if it affects mice in this way then it will probably do the same to me.

I would summarize the problem as this; regulation and law making always has a problem when dealing with high technology, lawmaking is a slow process, but technological advancement is not. Laws chase while science runs ahead. But here we are dealing with a serious situation, something is in mass production and use, generating large sums of money but practically unregulated and untested.

The possible up-sides of nanotechnology are enormous, but I would say that the down-sides need to be taken into account too.

For a more in depth debate see my and other’s posts on the Bassetti Foundation website.