Back when the Internet was new and nanotechnology was a term as yet unknown to the investment community, the very valuable domain name "
www.nano.com" was cornered by someone with foresight (no pun intended). I don’t know who that person was, but I do know for whom they were working: Nanomix, Inc. It is a question that I should have asked President and CEO David Macdonald when I had the chance.
I interviewed Macdonald last year at the NanoCommerce conference in November, 2005. The sound quality of the interview was terrible; there was a fountain in the background. This is a real-life lesson in the way your nervous system edits reality. A constant noise gets subtracted from the general noise level so that you’re not aware of it. But to a microphone, the fountain is still there. So my interview with Macdonald (the D is not capitalized, I have been forcefully admonished by his assistant) sounds like it occurred on a raft in the Middle Fork of the Salmon, at about the confluence with the Main. Nevertheless, Macdonald himself comes across smooth and professional.
Here is the transcription of that interview, without the sound effects (SE designates me, Steve Edwards):
SE: Could you tell us a little about Nanomix and how it got started?
Macdonald: Nanomix was founded in 2000; it was originally a spin-off from University of California, Berkeley. Our co-founders were Marvin Cohen and Alex Zettl (both from the Department of Physics). They were developing different nanomaterials for different applications. We have decided to focus the company on materials that are used for detection applications.
SE: What is your background? How did you become part of Nanomix?
Macdonald: I have (spent) about 25 years in commercializing detection technologies in medical devices and diagnostics companies. Just prior to joining Nanomix about a year and a half ago, I was at Nanogen, which was using nanotechnology as well as other forms of molecular diagnostics detection for a group of very exciting tests. Prior to that I was CEO to a start-up company in San Diego doing medical imaging. Prior to that I was President and COO for Nichols Institute Diagnostics for a period of time, about nine years. (Nichols is) a division of Quest Diagnostics, the largest lab network in the world. And prior to that, Behring Diagnostics and prior to that Nova Biomedical. So I have a long history of medical technologies, but all based on taking new detection technologies, turning them into products, launching them into the market place and making them, and making those companies successful.
SE: Can you tell us a little about how these carbon nanotube sensors work?
Macdonald: Sure. We take a network of carbon nanotubes and we produce a transistor type of device. We can coat those carbon nanotubes with different chemistries that will react with a particular molecule that we’re trying to detect. And when that reaction takes place with the chemistry, it changes the current flow through the carbon nanotubes and we can measure that change. So there’s a number of electronic characteristics that we can measure through these devices, but because they are so small, using carbon nanotubes, which are about a nanometer in diameter, the devices are extremely sensitive to these reactions. They also draw very little power and, of course, can be made very small and can be arrayed on small chips. So it gives us a lot of unique features because of the nanomaterials we use for doing nanoelectronics detection.
SE: Is it particularly good at gas detection?
Macdonald: Yes, we’ve done a lot of work with gasses, and we have a number of industrial gasses that we have feasibility data on. We’ve actually launched our first product this year—our hydrogen detection device—which was in beta sites for a year before it was launched. We are working with CO2 now; we have another product next year that does CO2 detection. We’ve done feasibility work on a long list of gasses. We can also do liquid phase reactions, and we have a different category of analytes that we’re working on around biomolecule detection, so we’ve done work with proteins, we’ve done with other biomolecules, enzymes, glucose, DNA strands, that type of thing. So we can do both gas phase reactions and liquid phase reactions with the device.
SE: Tell me more about this CO2 device? What’s that going to be used for?
Macdonald: Yes, the first product we’re going to be working on is an emergency respiratory monitor. And this is a good example of what we’re doing with this technology platform. We’re providing information access to where it’s needed for decision making. So with this particular device, we’re taking a test that’s used broadly in hospitals to measure a person’s respiration; it’s called capnography, which is nothing more than watching the CO2 in exhaled breath, and monitoring a graph of CO2 that’s being exhaled. And this is being done today with sophisticated equipment in hospitals, usually in operating rooms when a patient is under anaesthesia, and we’ve developed a small point of care device that will be disposable that does the same kind of quantitative continuous monitoring of CO2 and respiration that can be used in an emergency situation. So oftentimes when a patient needs to be ventilated in the event of an emergency, it’s done in an ambulance or even on a street corner where a person has collapsed, and the EMT really has no way to know whether the tube has been inserted properly, the patient’s breathing properly, that the tube has remained in position, and that they (sic) are receiving adequate CPR, but this device will give them that kind of information and let them monitor that patient while they (sic) are being transported to the hospital. So, it’s a really good example of providing critical information to where it’s needed using nanotechnology.
SE: Now, are you going to be manufacturing this yourself, or just the sensor part of it, or are you going to be having other people doing that?
Macdonald: We are a manufacturing the sensor chip part of it and we are subcontracting other parts of the finished device and we’re distributing through collaborations. So a key part of our business model, because this platform can be deployed very broadly, is to collaborate with other companies. So we have one collaboration in place with DuPont and we’re working together with a number of other companies that are interested in different applications so we can do joint development together and ultimately distribution together.
SE: So you’re not planning to hire a sales force?
Macdonald: Exactly. We have no intention of distributing any of these products directly.
SE: Tell me a little bit more about the biosensors—I understand that you have a contract with the Naval Research Lab—what sort of things are they interested in?
Macdonald: Without getting into the specifics of that agreement, they’re interested in doing different aspects of biomolecule dissection. We’ve got a number of activities going on right now on liquid phase biomolecule detection. There are a number of papers we’ve published on the subject that are on our website, nano.com. Most of our work, recently, has been focused on DNA detection, so doing detection of specific DNA strands—specific mutations of DNA—using the device in a liquid phase reaction.
SE: So are they going to be interested in like bioterrorist surveillance or…
Macdonald: The technology can certainly be applied to a variety of chemical warfare, biowarfare agents, human identification, those types of things.
SE: Avian flu?
Macdonald: That’s the airborne virus, liquid phase virus, so that there are a number of applications that could be applicable to military as well as homeland security.
SE: One other thing I noticed on your website is that you have a patent on hydrogen storage. And are you interested in the future to get into hydrogen fuel cell type…
Macdonald: That’s where the company started and some of the first work done by our company founders from (University of California at) Berkeley were focused on materials for doing hydrogen storage in unique ways, at ambient temperature, rather than at high pressure. There are different ways of storage rather than at very cold temperatures, very hot temperatures, that kind of thing…These unique materials, we have a number of patents in that field, we are licensing, we are looking for partners who may want to license those patents, we’re not focusing any of our internal application development on the hydrogen storage….
[Wait, wait, what are you telling me, this whole freakin’ hydrogen economy thing is a mirage?]
SE: Do you think that a hydrogen fuel cell in everybody’s car would be an application for your hydrogen sensors?
Macdonald: Possibly, although automotive sensors are typically not an application that we have pursued they are typically, uh, uh, difficult specs to meet, uh, very low price, very low margin type of application, uh, with very few customers and so it’s risky about penetration, so what we’ve, this technology platform can be applied so broadly to different things, our biggest challenge has been picking the right applications to work on. It’s not really a question of what could we do with it, but really, what should we do with it. And which partners can we attract to work on really exciting commercial opportunities, and automotive sensors are one of those. Hydrogen fuel cell storage is just longer term and it’s a riskier, riskier product application to pursue.
SE: You’re looking for the profitable low hanging fruit?
Macdonald: Exactly. We’re looking for applications that can be adopted rather quickly—that create a lot of value—not necessarily the fastest—although the hydrogen detection device that we put out this year was something that we could do rather quickly—these medical devices take a bit longer, but they add a lot of value. And having access to that information where it’s needed saves lives and is very valuable to doctors and to patients.
SE: The hydrogen sensor that you already have out—congratulations on your first product, by the way…
Macdonald: Thank you.
SE: It’s always a hard, a very good thing, a proof-of-concept, if you can actually get a product on the market. Who is the market for that?
Macdonald: The device that we put out, we have a couple of different versions of it, one is a wireless version, one is fixed installation monitoring device, one is designed for lab fume hoods with its own on-board display, and all of these operate to similar specs, all that are designed for room monitoring so that anyone using hydrogen, or where hydrogen can accumulate, so that research laboratories or telecommunication sheds where they have batteries that are being charged, ‘cause hydrogen could accumulate in those environments. Room monitoring applications and lab fume hoods monitoring applications.
SE: Do you have any thoughts in the future of letting the public invest in your company—will you have an IPO that we can look forward to?
Macdonald: It’s hard to say. I wouldn’t be so bold as to predict such a thing or the timing of such a thing, but that’s one possibility. There are several possibilities for us in the future, either to work together to continue strong collaborations, or to be acquired by other companies or to have portions acquired by other companies, or to have license rights acquired.
SE: So any and all possibilities are open.
Macdonald: Yes, all possibilities are open at this point.