Injections Without Needles

If there is one thing I don’t like it is getting an injection. I have never had a flu shot (but never had the Flu) and part of the reason is the needle effect.

This may all be coming to an end though as scientists here at MIT have devised a way to inject medicine without a needle. See this article for a description.

Needle free injection

The new MIT developed needle-less system

This is not the first time that such a development has been publicized, but a technological and practical leap forward has been made. The MIT system is new in that it can deliver medicine at different depths. This means that medicines can now be inserted into muscle or fatty tissue at will and with ease.

The system uses magnets to achieve delivery, and this is the breakthrough that makes the system so interesting. Needle-less systems have been available for some years now, but they tend to rely on compressed air and are not flexible in terms of pressure. They medicine enters the body but the depth is not variable.

The MIT device works electrically and the pressure is absolutely flexible, allowing the operator to change the pressure of entry but then also lower it to enable distribution to the surrounding tissue. In other words lower pressure can be used to pass through the skin of a child, a process that does not require the same force as passing through an adult’s skin. The pressure can then be lowered to enable the distribution of the medicine to the surrounding cells once already in the body.

This breakthrough means that medication can be passed through other parts of the body too, for example through the eye tissue and directly into the retina or through the ear drum.

As you can see the importance is not really in my dislike of needles but in the loss of the needle.

Needle injuries are common for health workers, and with this system they are removed from the equation once and for all. No more accidental cross infections!

There are also obvious advantages for people that have to inject themselves daily for example in the case of diabetes.

Several major drugs companies have expressed an interest in developing and marketing the product so it looks like the days of the needle might be numbered.

I don’t know if it still hurts a bit though.

The App Store exceeds 25 billion downloads!

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California-based tech giant Apple – a company renowned for their phenomenally successful consumer hardware – have confirmed that the number of applications downloaded from its App Store recently exceeded 25 billion worldwide.

The figures that make up this total include apps sold via the store for all of Apple’s iDevices – including the iPhone, it’s various iPods and the iPad. Apple’s iDevices are used by an estimated half a billion people world wide (500 million) a colossal amount!

A black iPhone 4S

A black iPhone 4S – one of the iDevices which Apple have sold half a billion of (globally)

The announcement by Apple follows news that the winner of the company’s App Store Countdown to 25 Billion Apps – Chunli Fu from China – will be given a gift card worth $10,000 in free gifts as a reward for being the person to download the 25 billionth app from the Apple Store.

The app that marked the 25 billion download point was the game Where’s My Water (the free version). The app is a puzzle game that tests the physics skills and knowledge of the user, and can be downloaded onto virtually all of the main Apple iDevices, including the iPhone and iPad.

The game is one of the biggest selling and most popular apps available via the Apple Store – an in-house option for downloading Apple products which has proven to be revolutionary since the company started it.

In the period since the Apple Store was launched it has grown to the point where it now has 600,000 apps available for download, to users of the iPhone, iPad and iPod. These apps are available in more that 100 countries world wide, with nearly 200,000 of the apps being created by Apple itself. The apps available cover a wide range of subject areas, such as sports, games, news, business, travel and health and fitness. Just look at the Technology Bloggers ‘apps‘ category, to see reviews of some of the great apps on offer.

Apple’s Internet Software and Services senior vice president of Internet Software and Services, Eddy Cue, said:

“We’d like to thank our customers and developers for helping us achieve this historic milestone of 25 billion apps downloaded. When we launched the App Store less than four years ago, we never imagined that mobile apps would become the phenomenon that they have, or that developers would create such an incredible selection of apps for iOS users.”

Thanks to this and other user-friendly promotions, Apple remains the company to beat in more than one field!

Nanotechnology, risks and benefits

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.