Further advance in the integration of organic and inorganic matter

A fundamental research focus in nanotechnology is the deliberate creation of organic-inorganic hybrids such as rotaxanes that have the properties of both organic and inorganic matter. These nanomaterials can greatly extend the range of control and manipulation that can occur in nanomedicine and other applications.

One interesting recent example is engineered fusion proteins, inorganic-binding peptides conjugated with bioluminescence proteins. The fusion proteins can be used as bioimaging molecular probes both targeting minerals (through fluorescence labeling) and monitoring the rate of biomineralization (through induced reactions). (Yuca et al., Biotechnol Bioeng. 2011 May;108(5):1021-30.)

Figure 1. Integrating organic and inorganic materials: graphene sheet sandwiched in the hydrophobic interior of a phospholipid

Another example (Figure 1) is graphene sheets sandwiched in the hydrophobic interior of a phospholipid. The phospholipid layers of the membrane electrically isolate the embedded graphene from the external solution which means that the composite system could be used in the development of biosensors and bioelectronic materials. (Titov et al., ACS Nano. 2010 Jan 26;4(1):229-34.)

Ubiquitous information technology fields

The broadest thematic point in futurist Ray Kurzweil’s opening keynote at Singularity University on November 6, 2009 was that once any area becomes an information technology, it starts conforming to the exponential curves of Moore’s Law progress that have defined the computing and communications industries since 1900 or earlier.

Health is well on its way to becoming an information science with genomic sequencing and synthesizing, bioinformatics and continuous automated biomarker capture. Energy is starting to be an information science with the smart grid, essentially an electron routing network allowing on-demand ingress and egress of diverse flows. Many other fields could behave in the networking and packet-routing metaphor, directing fungible quantized resources to where they are needed and requested like people in driverless cars, neurons in a brain, clean air and water molecules, disease management and health care delivery. Since demand varies, market principles could be used for unobtrusive resource allocation in automatic markets that meet and transact per digitally-inferred demand profiles and pre-specified permissions.

All science is in some phase of becoming or has already become an information science in the sense of using computational models, simulation and informatics.

With computation and communication becoming increasingly embedded in every manufactured object, it is obvious that many more if not all fields could become information technologies.

Intelligence, for example, is becoming an information science. With the exponential growth of computing, it is likely that at some future point, machine intelligence could surpass that of humans. One path forward is to reengineer life into technology that can keep pace with technological advances. There are already three dimensions of progress towards this goal: understanding the existing examples of the brain through neuroscience, simulating and building de novo intelligence in software and robotic forms and integrating human and machine capabilities with brain-computer interfaces, creating the biomolecular interface of integrating organic and inorganic material.

Social sciences
The question arises about how seemingly subjective and nuanced fields like politics could become information sciences. In the short term this is already happening with citizen journalism and collective organization through social networking (examples: flashmob protests and Twitter Iran election feedback). In the longer term, it is imaginable that political artificial intelligences, pleasantly absent the agency problem and special interests of human politicians, could start to perform low level political tasks and over time be used to a much larger degree in policy formation, public resource allocation and administration of nation state affairs.

The biomolecular interface and the definition of living

Definitional and classification issues often arise in any field of heightened focus and progress (e.g.; what is a planet?). For the many fields integrating organic and inorganic materials, an interesting issue comes up as to what is the definition of life. Many different gradations of living things are emerging.

Some interesting new cases of living materials are the idea of organic sensors made of biomaterial placed on buildings, self-replicating crystals and biological scaffolding for stem cell grown organs and 3D tissue printing.

De novo materials synthesis
One exciting aspect of the living/non-living classification is the new synthesis of both organic and inorganic materials. Scientists are creating de novo engineered proteins and other biological materials, non-naturally occurring inorganic materials with superior properties using molecular manufacturing techniques and hybrid organic-inorganic materials, with the best of organic and inorganic properties in one object, for example rotaxanes which could be used in quantum computing.

Definition of integration
Not just the definition of what is living arises, but also the definition of the integration of organic and inorganic materials. Alan H. Goldstein proposes that a true integration of organic and inorganic material involves communicating back and forth, not just a system which has properties or components of both organic and inorganic systems.

The future of biomolecular interfaces

The future of biomolecular interfaces is probably a further blurring of the underlying substrates as the focus is more relevantly on the properties and requirements of any challenge at hand.