Carbon nanodot technology hopes to improve biopesticide use
Nanodot-carried RNA sprays could let farmers target single pests and weeds while cutting synthetic pesticide use sharply.
Key takeaways
- University of Bristol spinout CDotBio is repurposing carbon nanodots from healthcare to make RNA-based biopesticides more stable and effective.
- The nanodots protect RNA from degrading too quickly, helping biopesticides reach pests or weeds and enabling more precise pest control.
- Preliminary modelling suggests nanodot-enabled RNA sprays could cut synthetic pesticide use by up to 70% in targeted applications.
- CDotBio will first target herbicide-resistant blackgrass, with trials expected in 2026 and a market launch targeted for 2028.
Cite or link to this article
Griffin, M. (2025) 'Carbon nanodot technology hopes to improve biopesticide use', Fanatical Futurist, 11 Aug 2025. Available at: https://www.fanaticalfuturist.com/2025/08/carbon-nanodots-rna-biopesticides/
Carbon nanodots, originally a technology developed for the healthcare industry, could make bio-pesticides more stable and effective, believes a UK tech start-up. Carbon nanodots are ultra-small, biodegradable materials that enable precise, species-specific targeting in plants.
Traditionally used in medical and biotech applications, these nanodots are being repurposed to overcome key challenges in ribonucleic acid-based (RNA) biopesticides, such as poor stability, delivery and cellular uptake.
The biotechnology spinout company from the University of Bristol, CDotBio, which developed the technology, hopes to initially target herbicide-resistant blackgrass, which causes more than £400m in losses annually to UK farmers. The firm is also developing nanodot-enabled RNA solutions for major crop threats such as wheat rust, downy mildew, aphids and other insect pests.
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“Carbon nanodots enhance the stability and delivery of RNA, allowing biopesticides to reach pests or weeds more effectively,” explains Teo Garcia-Millan, co-founder and chief executive of CDotBio.
“This prevents RNA from degrading too quickly, enabling more precise and reliable pest control.”
The company’s preliminary modelling indicates that nanodot-enabled RNA sprays could reduce synthetic pesticide use by up to 70% in targeted applications.
Founded by researchers from the University of Bristol’s School of Chemistry and School of Biological Sciences, CDotBio’s nanodots are manufactured from renewable organic materials and are cost-effective to scale.
CDotBio’s leadership includes Dr Teo Garcia-Millan, a materials chemist with a PhD in functional nanomaterials, engineering biologist Dr Veronica Greco, and plant molecular geneticist Dr Fran Robson.
The business model is built on strategic partnerships with agri-businesses, RNA manufacturers and crop protection firms.
The start-up has been awarded the £25,000 Armourers & Brasiers Venture Prize, which recognises excellence in materials science innovation with high commercial potential. The prize will fund studies and field trials ahead of regulatory submission.
Trials are anticipated to begin in 2026, with market launch targeted for 2028, pending regulatory approvals.
FAQ
What are carbon nanodots and how do they help biopesticides?
Carbon nanodots are ultra-small, biodegradable materials first developed for healthcare. CDotBio uses them to carry RNA in biopesticides, improving stability, delivery and cellular uptake so the RNA does not degrade too quickly and can reach pests or weeds more effectively.
Which crop threats is CDotBio targeting?
CDotBio will initially target herbicide-resistant blackgrass, which causes more than £400m in losses to UK farmers each year. It is also developing nanodot-enabled RNA solutions for wheat rust, downy mildew, aphids and other insect pests.
How much could nanodot-enabled RNA sprays reduce pesticide use?
The company's preliminary modelling indicates that nanodot-enabled RNA sprays could reduce synthetic pesticide use by up to 70% in targeted applications, while giving more precise, species-specific control of pests and weeds.
When will CDotBio's technology reach the market?
Field trials are anticipated to begin in 2026, funded in part by the £25,000 Armourers & Brasiers Venture Prize, with a market launch targeted for 2028, pending regulatory approvals.

About the author
Matthew Griffin Founder, 311 Institute
Matthew Griffin is a multi-award winning Futurist and expert in Disruption and Innovation, Geopolitics, Leadership, and Technology, who NASA have described as a "walking encyclopaedia of the future" and a "futurist Polymath."
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Matthew Griffin is a multi-award winning Futurist and expert in Disruption and Innovation, Geopolitics, Leadership, and Technology, who NASA have described as a "walking encyclopaedia of the future" and a "futurist Polymath." 17-time best selling author of the "Codex of the Future" series, Matthew is the Founder and Futurist in Chief of the 311 Institute, a global Futures and Deep Futures advisory firm working with royal households, world leaders, G7, G20, and G77 governments, NGOs, and multi-national mid and mega cap firms to help them explore, shape, and lead the next 50 years of business and society.
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Source: first published by Fanatical Futurist on 11 Aug 2025. You are welcome to quote this article with credit and a link to the original.