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Launch HN: Volta Labs (YC W19) – Easier sample prep for genomics
Hi HN, I’m Udayan Umapathi, founder of Volta Labs (https://www.voltalabs.com https://www.voltalabs.com), a genomics applications company that is using advanced electrowetting technology to solve one of the toughest challenges facing the genomics industry—scalable sample prep. We’ve built a walk-away benchtop sample prep system that comes preloaded with apps that require no user programming or optimization, enabling labs to maximize resources, scale sample throughput, and reduce risks related to manual handling. I filmed a quick video in the lab if you want to see what it looks like IRL: https://vimeo.com/935960826/d0efdf3f14 https://vimeo.com/935960826/d0efdf3f14.
Sample prep is the process of going from raw biological samples to sequenceable molecules. The process typically involves isolating nucleic acids from samples like blood/cells, breaking up these nucleic acids into small pieces, and adding barcodes at a molecular level.
Although sequencing technologies have made huge advancements in general, sample preparation is largely still done manually and remains a bottleneck. Many companies, small and large, have attempted to develop solutions that haven’t panned out. A couple things make it so challenging:
(1) The number of sample types - for humans alone, sample types include blood, saliva, various tissue types, buccal swab, etc. Each has its own requirements when it comes to handling to isolate nucleic acids, and even within each type there are significant differences. For example, blood from various donors has different cell density.
(2) There is a large array of chemistries for different analyses and sequencing technologies, and there is a need for flexibility in throughputs to process a few samples at a time or run large batches.
Developing a technology that is flexible enough to work with various sample types and chemistries while maintaining quality spans many disciplines: fluidic dynamics, thermal engineering, molecular biology, material science, mechanical engineering, electrical engineering, and software engineering.
I didn’t set out to develop a way to automate sample prep. I was exploring the use of electrowetting to manipulate colored droplets on a circuit board during my research in the MIT Media Lab. During one of my demos, there was huge interest from biologists at the lab as well as from biotech/pharma sponsors. I quickly began to realize that the application of this technology and the potential impact it could have was much larger than I had anticipated. I immediately got to work studying biology, focusing on five broad markets that included DNA sequencing and synthetic biology. The opportunity in the well-established DNA sequencing market begging for a solution to improve the quality of samples, reduce costs and create throughput flexibility led me to developing a way to automate sample prep. And here we are today, bringing it to market.
The Callisto Sample Prep System is a sequencer-agnostic benchtop system that enables a push-button, walkaway sample prep experience. This enables all labs—labs already using sequencing automation, and those new to sequencing—to free up resources and not rely on skilled labor to maximize throughput. By automating the process end to end, reliably, scientists can focus on other aspects of research and development.
What exactly does the instrument do? It manipulates little droplets on a surface using electric and magnetic fields. These droplets contain DNA, RNA, enzymes and other biochemistries, or they can be raw samples such as blood, saliva, etc. Once these droplets are on the surface, we move, merge, mix and split them in various ways. We also incubate these samples to specific temperatures on the same surface. We also use traditional robotic technologies such as gantry and pipettors for a limited set of operations.
Our approach has many advantages over existing technologies: it allows us to reduce total cost to our customers with less plastic waste and reagent usage; it improves quality of samples prepared; it provides reliable sample manipulation given the electric and magnetic nature of the technology; and it offers complete walk-away automation, bringing the push-button experience of a sequencer to sample prep.
I’m proud to bring a solution to the market that is accessible for all labs, especially labs with lower budgets (which are the majority). Now small core labs can provide low-cost, competitive solutions relative to commercial service providers, and larger labs can scale up their processes to make new sequencing technologies available to their customers. Individual labs at universities can now bring sequencers in-house for cost-effective, efficient, and reliable sequencing. So many applications, with huge potential impact for consumers!
Fewer than 5M humans have so far been exposed directly to sequencing technologies, yet sequencing technologies and life sciences tool development is what propels the modern world of biology. The only other field that has experienced advancements faster than sequencing technologies over the past two decades is AI, if that gives a basis of comparison for how big this is.
This level of sample prep automation is new to genomics, new to the world! I’m excited to hear your comments, questions, thoughts, ideas - please share your insights and experiences to help us realize the full potential of this technology and make a tangible impact on science and society. And, go!
- DHaldane 2y agoFascinating technology - if I interpret it correctly it looks like you're replacing lots of manual pipetting with a surface that can scooch little drops around using electrostatics. And then do a bunch of stuff you can't do with a pipette like controlling temperature, mixing. Have you found an increase in throughput from the device vs a human with a traditional wet lab? Or is more about saving bio-chemists some serious back pain? Are there new experiments we can do now?
- perceptron 2y agoYour assessment is more or less spot on. We are replacing many pipetting steps with electric and magnetic manipulation of samples on a surface. Traditionally these operations when done manually (or even on other automation) are done inside tubes. When these operations are carried out inside tubes you have many limitations: you end up using a lot of tips, when pipetting manually some workflows require special techniques to pipette handle the samples. These operations are also extremely painful when do them over and over again -- very tedious and very easy to make a mistake. Yes we have seen increase in throughputs relative to human. Most humans (often) process samples in batches of 8 / 12 samples. To give you a sense of the length of the workflow in a lab it can range from two hours to two days. The Callisto system can process anywhere from 1 - 24 samples for many workflows and is software controlled. It not only eliminates the manual steps: it provides at least 3X the throughput with 15 mins setup time, provides reproducible results and improves quality.
- waiquoo 2y agoHow does your technology compare to Nuclera's chip based system?https://www.nuclera.com/technology/ https://www.nuclera.com/technology/
- perceptron 2y agoWe do not have firsthand experience with the Nuclera's chip based system. But there are some key differences based on what we can find online: - their system uses display technology based backpanel from Eink to activate the electrodes. The display itself could be the consumable that is disposed after each run (we are not sure from their website). The technology is suited for manipulating very small volumes. Looks like they have picked applications that span enzymatic DNA synthesis and protein eexpression - the Callisto system uses standard PCBs and plastic surface that interfaces with the droplets. The PCBs are not disposed after each run, while the plastic surface is. We can also handle a large dynamic range of volumes in liquids making it suitable for more standard molecular biology workflows.