Product Description
Enthusiasts look forward to a time when tiny machines reassemble matter and process information with unparalleled power and precision. But is their vision realistic? Where is the science heading? As nanotechnology (a new technology that many believe will transform society in the next on hundred years) rises higher in the news agenda and popular consciousness, there is a real need for a book which discusses clearly the science on which this technology will be based. While it is most easy to simply imagine these tiny machines as scaled-down versions of the macroscopic machines we are all familiar with, the way things behave on small scales is quite different to the way they behave on large scales. Engineering on the nanoscale will use very different principles to those we are used to in our everyday lives, and the materials used in nanotehnology will be soft and mutable, rather than hard and unyielding.

Soft Machines explains in a lively and very accessible manner why the nanoworld is so different to the macro-world which we are all familiar with. Why does nature engineer things in the way it does, and how can we learn to use these unfamiliar principles to create valuable new materials and artefacts which will have a profound effect on medicine, electronics, energy and the environment in the twenty-first century. With a firmer understanding of the likely relationship between nanotechnology and nature itself, we can gain a much clearer notion of what dangers this powerful technology may potentially pose, as well as come to realize that nanotechnology will have more in common with biology than with conventional engineering.

CUSTOMER REVIEWS (Average Customer Rating: 5.0 based on 2 reviews)

Supurb analysis of nanotec possibilities AND limitations by Earle Bowers (New York, New York USA)

5 Stars
June 26, 2008
Before reading this book I was familiar with the conjecture that MNT (molecular nano-technology)devices will tend to be more like nonascale biological components than macroscale machines and suspected there was some truth to it. This book tends to confirm that hypothesis but gives so much more and in such readable detail.

An advantage is that the author, Jones, is not a biologist but a physist, and his approack deals with the physical phenomina of brownian motion (shaking by thermally excited molicules), surface effects like van der Walls forces and viscosity, and the ways these forces can be taken advantage of rather than fought by unconventional machine components like shape changing molicules for valves and isothermal motors at this scale.

Jones and colleagues are themselves involved with development of nanoscale motors using these techniques and the book also covers the equally weird information processing and transduction devices which are likely to be most useful at this size range, again emphysizing similarities to biocomponents but by no means suggesting that we limit ourselves to slavishly using or copying them.

Later in the book he does get into the physical limitations of the dimonoid assemblers and such originally proposed by Eric Drexler, but this book is by no means simply a put down of another researcher's ideas or cat fight between them.

As a view of what short and medium term MNT is likely to be like I can not think of a better source. While this text uses little mathematics it does manage to rigorously lay out the underlying physical laws that will limit some types of construction at this size range but also provide some new and almost magic seeming possibilities.

Over-all I would say this book contains les "hype" about nanotechnology than any I have come across, presenting facts instead.

plenty of room at the bottom, but it's sticky and shaky by William Uspal (Pittsburgh, PA)

5 Stars
June 25, 2007
What is nanotechnology? Much of what has fallen under that label has been incremental extension of established engineering practices and technologies to the nanoscale, e.g. improvements in planar silicon fabrication. How much longer can this continue? A more radical vision is that of K. Eric Drexler and his followers, who foresee precise positional control and construction of "assemblers" and "nanofactories" based on the chemistry of carbon. Is this vision -- which spawned much speculative literature and the grey goo scenario of out of control replicators -- feasible?

Jones argues that a wholly different approach will have to be adopted -- an approach suited to the peculiar physics of the nanoscale, where fluctuations and Brownian motion dominate, where surfaces are sticky, and where even quantum field theory (in the Casimir effect) conspires to frustrate the Drexlerian machinist.

Rather than try to work around the physics of the nanoscale, Jones proposes that we use it to our advantage -- just as biological soft "nanotechnology" does. Brownian motion and adhesion energy, for instance, make self-assembly possible. Just as proteins spontaneously fold to their native conformations and just as lipid membranes spontaneously assemble and fold into liposomes, we can design molecules to spontaneously achieve useful three dimensional conformations. We can imitate proteins by coupling conformational changes to molecular recognition and environmental changes, the principle which makes a host of protein activities -- signaling, sensing, catalysis -- possible. While traditional Carnot heat engines fail on the nanoscale, we are now beginning to understand the principles of isothermal molecular motors, such as those used for intracellular transport.

I very much recommend this book for its synoptic overview of current nanotechnology and the challenges facing it. Explanations of physical principles are clear and precise, and would benefit the layman and the researcher alike. Jones has much else to say about evolution, systems biology, silicon vs. single molecule electronics, etc. I only regret that he only cursorily discusses bionanotechnology (as opposed to biomimetic synthetic nanotechnology), i.e. what he calls the "Mad Max" approach of stripping down and reengineering working biological nanosystems, which he only introduces in the last chapter. He rightly is concerned about public opposition and even unforeseen consequences of this approach, but I would like to know more about what it has made possible.

Still, I very much recommend this underappreciated book (no reviews yet?) which I think is on par with Purcell's paper "Life at Low Reynolds Number" and Vogel's "Life's Devices" -- a science writing gem.

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