The Royal Institution - The future of bioengineering - with Alvena Kureshi
The speaker, a bioengineer and entrepreneur, discusses the integration of science and nature to create solutions for healthcare and environmental challenges. They highlight the development of biodegradable materials to replace plastics in surgical applications, emphasizing the importance of eco-friendly innovations. The talk covers the use of collagen and bioplastics in medical applications, such as wound dressings and corneal repair, showcasing how these materials can be engineered to mimic natural tissues. The speaker also discusses the future of surgery, envisioning a world with less invasive procedures aided by robotic technology. They emphasize the role of bioengineering in creating sustainable solutions that benefit both human health and the planet, illustrating this with examples of using everyday materials like eggshell membranes and nanoparticles for medical purposes.
Key Points:
- Bioengineering combines science and technology to innovate medical devices and materials, focusing on human health and environmental sustainability.
- Biodegradable materials, like collagen and bioplastics, are being developed to replace plastics in healthcare, reducing environmental impact.
- Innovations in bioengineering include using collagen for corneal repair and nanoparticles for antimicrobial wound dressings.
- The future of surgery involves less invasive procedures with robotic assistance, improving precision and reducing recovery time.
- Bioengineering draws inspiration from everyday materials and processes, such as using eggshell membranes for medical applications.
Details:
1. 🌱 Imagining a Bioengineered Future
- Bioengineering aims to recreate life by building artificial tissues, potentially revolutionizing the medical field with innovations like organ regeneration and synthetic biology.
- The concept of mimicking the 'Divine blueprint' suggests utilizing nature’s efficiency in engineering processes, which can lead to sustainable solutions in environmental challenges.
- Harmonizing science and nature could lead to breakthroughs in personalized medicine, offering treatments tailored to individual genetic profiles.
- Bioengineering applications are already visible in developing eco-friendly materials and energy solutions.
- However, ethical considerations and potential risks such as genetic privacy and ecological impact need to be addressed.
2. 🔬 Fusing Science and Nature for Healing
- Bioengineers are using biomimicry, which involves designing materials and structures inspired by natural processes, to enhance medical treatments and environmental restoration.
- An example includes creating synthetic materials that replicate the self-healing properties of human skin, which could significantly improve recovery times and reduce medical costs.
- By mimicking photosynthesis, researchers are developing efficient ways to capture solar energy, which could lead to sustainable energy solutions.
- These innovations highlight a commitment to transforming both healthcare and environmental management through nature-inspired design, aiming for long-term positive impacts on society and the planet.
3. 💡 Bioengineering Journey & Science Presentation
3.1. Bioengineering Journey
3.2. Science Presentation Techniques
4. ✨ Engaging Science Demos and Innovations
- The presenter, known as Professor Lightning, is renowned for sparking curiosity in young audiences through engaging science presentations.
- With training from the Royal Institution, the presenter utilizes legendary science demonstrations that include audience participation, enhancing educational engagement.
- The lecture highlights significant bioengineering innovations, such as the development of synthetic tissues for medical applications, addressing unmet clinical needs across various body systems.
- One example includes engineered heart tissues that improve recovery outcomes for cardiac patients.
- The talk emphasizes the interdisciplinary nature of bioengineering, showcasing collaborations between fields like biology, engineering, and materials science to drive innovation.
5. 🌿 Eco-friendly Bioengineering Solutions
- Bioengineering utilizes everyday materials, such as eggs, to innovate and heal human bodies.
- The field combines science, engineering, and technology to create new medical devices, materials, and processes.
- Bioengineering solutions are crucial for improving human health while being mindful of environmental impact.
- With a global population of 8.2 billion, there is a significant responsibility to protect the planet's resources.
- The discipline of bioengineering is positioned as a critical tool for both environmental protection and human health innovation.
6. 🔗 Collagen and Biodegradable Materials
- Bioengineers are actively developing biodegradable materials aimed at replacing plastic in healthcare, significantly reducing environmental impact.
- Traditional plastics depend heavily on fossil fuels, resulting in toxic waste and severe contributions to pollution and climate change.
- New eco-friendly materials are engineered to aid in bodily healing and restoration without harming the environment.
- Collagen, well-known for its use in supplements for hair, nails, bones, and protein shakes, is being utilized as a sustainable material in these innovations.
- Collagen is processed into biodegradable materials through specific techniques that allow it to replace traditional plastic applications in surgical bandages and other medical products.
- These collagen-based biodegradable materials not only reduce reliance on fossil fuels but also integrate seamlessly into medical applications, maintaining efficacy while promoting sustainability.
7. 👁️ Corneal Repair with Stem Cells
- Collagen, as the most abundant protein in the body, is extensively used in medical procedures due to its biocompatibility, minimizing rejection risks.
- Its applications include sutures, skin grafts, and considerations for wound dressings.
- Bioplastics, sourced from plants and algae, provide environmental benefits by naturally degrading, unlike traditional plastics.
- Tissue engineering integrates three elements: cells, a material for growth, and a suitable development environment.
- Cells, fundamental units of life, are essential for growing tissues on appropriate materials for medical use.
- The tissue engineering process involves expanding cells from donated tissues or organs for therapeutic purposes.
8. 🧪 Advancements in Tissue Engineering
- Cell sources for tissue engineering can be obtained from donated tissues corresponding to the target tissue.
- The choice of material for cell growth is crucial, as cells respond differently to various materials.
- Natural materials with fiber-like structures are used to mimic the natural environment of cells.
- Cells require a suitable environment with the correct mechanical and biochemical cues to grow and differentiate properly.
- The research at UCL focused on repairing the cornea after injuries or genetic diseases.
- The cornea is the outermost transparent surface of the eye, crucial for vision as it allows light to reach the retina.
- Recent advancements include the development of bioengineered corneas that can be used to restore vision, providing an alternative to donor tissue.
- Case studies demonstrate the successful implementation of tissue-engineered solutions in clinical settings, showcasing improved patient outcomes.
9. 🔄 Overcoming Corneal Transplant Challenges
- 10 million people suffer from corneal blindness worldwide, indicating a significant unmet need for corneal transplants.
- Corneal blindness can result from acid or alkali burns or genetic diseases, leading to damaged, opaque corneas with blood vessel growth, obscuring vision.
- Transplants depend on donor corneas, but there's a limited supply; the UK alone needs 70 corneas weekly to meet demand.
- 88% of organ donors are unwilling to donate their eyes, despite donating other organs, complicating transplant availability.
- Efforts are ongoing to develop alternative treatment strategies, aiming to use one donor cornea to treat multiple patients, addressing the scarcity.
10. 🔧 Innovative Collagen-Based Solutions
- Stem cell technologies aim to extract and grow cells to create a cell bank, enabling treatment for multiple patients with potential for widespread application.
- The cornea's stroma is a collagen-rich layer with a basket weave structure crucial for light passage and vision clarity; damage can lead to vision loss.
- Research extracts stromal cells to fabricate multiple cell types, including fibroblasts and stem cells, to regenerate corneal structure.
- Stem cells' ability to self-renew and differentiate offers versatility in tissue engineering, enhancing potential for corneal repair.
- Lab processes involve donor corneas, diced and used in biological experiments to optimize protocols for cell growth and differentiation.
11. 🔬 Strengthening Surgical Tissues
- Adult stem cells, extracted ethically from various tissues, are used in research for tissue engineering, avoiding the ethical issues associated with embryonic stem cells.
- These cells are cultivated by growing them in petri dishes with specific nutrients and growth factors. Once they multiply to fill a flask, they are divided and transferred to fresh flasks, creating extensive cell banks for future tissue engineering applications.
- Collagen is used as a primary material for creating artificial tissues due to its rapid fabrication, cost efficiency, and compatibility with various cell types, which enhances its application in tissue engineering.
- The properties of collagen are adjusted to suit different medical applications, ensuring engineered tissues are viable and functional.
- One challenge in using these materials is ensuring that the engineered tissues can integrate effectively with the body's natural tissues, requiring precise tuning of their properties.
12. 🔍 Aligning Fibers for Better Healing
12.1. Challenges with Traditional Gels
12.2. Plastic Compression Technique
12.3. Advancements in Process Standardization
13. 💡 Everyday Inspirations in Bioengineering
13.1. Collagen Gels for Corneal Repair
13.2. Application in Tissue Repair
13.3. Challenges and Innovations in Bioengineering
14. 🚀 Simple Devices Enhancing Tissue Engineering
- A simple method using a makeshift roller inspired by a pasta maker was developed to align collagen gels, mimicking the structure of body tissues.
- The technique, known as horizontal shear flow, efficiently rearranges collagen fibrils in minutes, confirmed by second harmonic generation microscopy.
- Cells seeded on the aligned collagen followed the same structural cues, important for synthesizing organized collagen.
- This low-cost method avoids the need for expensive equipment like magnetic fields or embedding cells within collagen.
- The process is quick, taking only minutes, and aims for standardization for consistent scientific rigor.
15. 🌿 Bioplastics and Nanoparticles in Medicine
15.1. Device Development Progress
15.2. Bioplastics Innovation
15.3. Nanoparticles in Wound Healing
16. 🥚 Eggs: A Sustainable Medical Resource
- The development embedded nanoparticles in bioplastics made from agar or algae, aiming to enhance wound healing and bone regeneration, especially for diabetic foot ulcers, a major NHS concern.
- Nanoparticles were successfully incorporated, allowing for cell viability when seeded on or within the gel, indicating a significant advancement in medical material technology.
- The collaboration with UCL focuses on using eggs as a sustainable resource in creating medical materials, exploring the benefits and applications of natural materials in wound care.
- The research highlights the potential of repurposing eggs into bioplastics for medical use, suggesting a new sustainable approach to medical material production.
17. 🔬 Innovations in Eggshell Applications
17.1. Utilization of Eggshell Membrane
17.2. Nanoparticle Integration and Antimicrobial Properties
18. 🤖 Future of Surgery: Robotics and Precision
- The future of surgery aims to eliminate scarring entirely, even during operations, by using robotic automation.
- Robotic systems are designed to perform delicate tasks with precision and accuracy, guided by skilled surgeons, enhancing rather than replacing them.
- The transition from open surgery in the 1980s to minimally invasive surgery in the 2000s, exemplified by the da Vinci robot, has reduced the need for large incisions, allowing for more precise surgical interventions.
- Future advancements aim for endoluminal surgery, utilizing natural pathways like the digestive tract to perform operations without incisions, though current instruments like endoscopes are primarily diagnostic.
- A significant revolution is expected in the treatment of bowel cancer, with advancements in diagnostic tools leading to early-stage detection, potentially making open surgery obsolete.
19. 🙏 Vision for a Smarter, Safer Future
- The company Senta, co-founded by the speaker and Arnal, is developing a next-generation surgical robot to assist surgeons in operating anywhere in the colon, with a focus on ease and precision in removing cancers and tumors.
- Senta is supported by Zinc Venture Capital, illustrating strong financial backing for its innovative healthcare solutions.
- The vision for Senta is to lead a revolution in surgical care, making surgery smarter, safer, and less invasive, aiming to redefine operating room possibilities globally.
- The emphasis is on the role of young innovators in building a future where health technology significantly enhances patient outcomes.
- The speaker expresses gratitude to collaborators and the Royal Institution for their support, highlighting the importance of collaboration in achieving these technological advancements.