Deep Tech Series Vol. 6: How Nature-Inspired Deep Tech is Shaping a Sustainable Future
October 16, 2024
In a world where technological advancement is a constant, the most transformative innovations are often those that look back to nature for inspiration. For billions of years, nature has been refining solutions to the challenges of survival, offering a vast repository of wisdom that we are only beginning to tap into. From the intricate design of bird wings that inspired early aviation pioneers to the underwater adhesion of mussels that led to the development of advanced waterproof adhesives, nature’s ingenuity has been the blueprint for many technological marvels. UNDP, through our Nature Pledge, stands at the forefront of addressing the current crisis of global nature loss—leveraging nature-positive approaches, from boosting biodiversity finance to enhancing environmental governance. By looking to nature, we can discover solutions that not only drive technological breakthroughs but also harmonize human advancement with the ecosystems that sustain us.
Biological materials, unlike the metals and plastics often used in human-made products, are predominantly composed of organic substances and minerals. While these materials might seem weaker compared to industrial metals, evolution has fine-tuned them over millions of years to achieve remarkable strength and durability. What sets these natural materials apart is their ability to not just strengthen materials but to optimize them, crafting intricate, hierarchical structures at multiple scales. For example, the intricate layers of a conch shell or the fine-tuned beta-sheet crystals in spider silk illustrate how natural materials can achieve mechanical properties that rival, or even surpass, their synthetic counterparts. These structures are not just strong but also exceptionally tough, demonstrating nature’s ability to optimize material performance through its unique design principles.
The process of biomimicry involves taking cues from these natural designs to solve human problems. By studying the principles underlying the strength and resilience of natural materials, scientists and engineers can develop new materials and technologies that are both sustainable and highly efficient. For example, researchers at the National University of Singapore have developed 'eAir', an aero-elastic pressure sensor inspired by the lotus leaf effect. This technology enhances precision and reliability in medical applications, particularly in minimally invasive surgeries. The eAir sensor allows for tactile feedback, enabling surgeons to manipulate tissues more accurately. By addressing the limitations of conventional pressure sensors, eAir is a prime example of a nature-inspired technology that promises significant advancements in medical technology.
Another example is biocatalytic cotton fibers, which could represent a promising breakthrough in sustainable textile manufacturing, inspired by the natural processes of carbon capture observed in plants. These innovative fibers are embedded with enzymes that not only catalyze chemical reactions for breaking down pollutants and facilitating eco-friendly dyeing processes but also have the ability to capture carbon emissions from the atmosphere. A startup has developed a CO2-removal textile that absorbs carbon emissions and can be easily washed, allowing the fibers to be reused in a carbon-neutral—or even carbon-negative—cycle. This innovation holds immense potential to transform the textile industry, which is responsible for approximately 10% of global carbon emissions. By integrating biocatalytic cotton fibers into production, the industry could drastically reduce its environmental footprint, making a significant contribution to global sustainability efforts.
Nature-inspired design extends far beyond mere imitation, offering the potential to develop entirely new innovations that surpass the performance of natural counterparts. By understanding the fundamental principles governing natural systems, scientists can create novel materials and technologies tailored to societal needs. An example of this is the development of self-healing materials, inspired by the regenerative abilities of living organisms. Professor Benjamin Tee has pioneered materials that can repair themselves when damaged, utilizing embedded microcapsules or dynamic bonds that re-form after breaking, similar to the healing process in biological tissues. This groundbreaking innovation extends to a wide range of materials, including metals, and offers many potential applications—from extending the lifespan of electronic devices to increasing the durability of construction materials. With global e-waste reaching a record 62 million tonnes in 2022, this innovation could present an opportunity to significantly reduce waste by allowing products to be repaired instead of replaced, a crucial step toward achieving SDG 12 on responsible consumption and production, particularly in resource-limited regions.
Nature’s ingenuity offers solutions to some of the world’s most pressing development challenges, including the global freshwater shortage. One such innovation is the development of an efficient fog collection system inspired by the back exoskeleton of the Namib desert beetle. This system utilizes a superhydrophobic-superhydrophilic patterned fabric, constructed through a simple weaving method and enhanced with copper particle deposition. With its biomimetic three-dimensional structure, the fog collector achieves an impressive water-harvesting rate of 1432.7 mg/h/cm²—far surpassing traditional plane-structured collectors. Beyond water collection, architects are also turning to nature for sustainable building designs. The Eastgate Centre in Harare, Zimbabwe, exemplifies this approach by incorporating passive cooling inspired by termite mounds. By mimicking the self-regulating ventilation system of termite colonies, the building uses 90% less energy than conventional structures of similar size. These nature-inspired innovations demonstrate how biomimicry can lead to significant resource savings and reduce carbon footprints, offering sustainable solutions for both water scarcity and energy efficiency in urban environments.
The rich biodiversity found in many developing countries serves as an invaluable “knowledge bank” that offers solutions to pressing global challenges. By leveraging this biodiversity through biomimicry, nations can discover innovative ways to tackle climate change, resource scarcity, and healthcare challenges. UNDP – through our work in every region and across 140+ countries – is already playing a pivotal role in promoting nature-positive solutions that harness these natural assets. Beyond the environmental impact, nature-inspired solutions can generate substantial economic benefits, fostering value creation and employment across multiple sectors. However, because these solutions depend on access to natural assets, it is essential to implement appropriate legal and policy frameworks and institutions to ensure the protection and effective management of biodiversity and critical ecosystems. Safeguarding these resources through protected area status and biodiversity stock protection will be critical in sustaining the long-term potential of nature-inspired innovations. With the right strategies in place, these innovations can unlock transformative solutions for sustainable development, while ensuring the protection of the natural resources that make it possible.
This is the sixth blog of the Deep Tech Series. Click here for the full list of blogs.