Biology presentation

1ST SEMESTER

F.Y BTECH

BIOLOGY PRESENTATION

BIOMIMETICS - TISSUE ENGINEERING BIOMATERIALS

index

1- INTRODUCTION

7- BIODEGRADABLE BIOMATERIALS

8- CHALLENGES

2- TYPES OF BIOMATERIALS

3- PROPERTIES

9- FUTURE TRENDS

10- NANOTECHNOLOGY IN BIOMATERIALS

4- BIOMATERIALS IN MEDICINE

5- TISSUE ENGINEERING

11- BIOMIMICRY IN BIOMATERIALS

12- CONCLUSION

6- BIOMATERIALS IN DRUG DELIVERY

INTRODUCTION

WHAT IS A BIOMATERIAL?

• A biomaterial is a substance that has been engineered to interact with biological systems for a medical purpose, either a therapeutic or a diagnostic one. • These materials are designed to be compatible with living tissues and often aim to improve or replace biological functions.

TYPES OF BIOMATERIALS

TYPES OF BIOMATERIALS

NATURAL BIOMATERIALS

SYNTHETIC BIOMATERIALS

CELLULAR BIOMATERIALS

CERAMIC BIOMATERIALS

Incorporate living cells into the material structure. Used in tissue engineering to create functional living tissues.

Man-made materials designed for specific biomedical applications. Eg. Polymers like polyethylene, polyurethane, and metals like Titanium

Derived from living organisms. Eg. collagen, chitosan, hyaluronic acid

Inorganic, often used for their mechanical properties. Eg. hydroxyapatite used in bone implants.

PROPERTIES OF BIOMATERIALS

1)Biocompatibility: Definition: The ability of a biomaterial to perform its desired function without eliciting an immune response or adverse reactions in the host. 2)Bioactivity: Definition: The ability of a biomaterial to stimulate a specific biological response at the interface of the material and the biological environment. 3)Mechanical Properties: Definition: The physical characteristics of a biomaterial, such as strength, elasticity, and flexibility. 4)Sterilization Compatibility: Definition: The ability of a biomaterial to withstand sterilization processes without significant alteration in its properties.

biomaterials in medicine

• Orthopedics: Osteoarthritis and rheumatoid arthritis change the structure of joints that can move freely, like the hip, knee, shoulder, ankle, and elbow. • Cardiovascular applications: Heart valves and arteries can have cardiovascular circulatory problems. Implants can be used to fix these problems. • Ophthalmics: The tissues in the eye can get sick from many different things, making it hard to see and eventually leading to blindness.Cataracts, for example, cause the lens to become cloudy. If users do not want this, users can get a synthetic (polymer) intramolecular lens instead.

• Dental applications: People with bacteria in their mouths can quickly kill their teeth and the gums that hold them in place. People with dental caries, which are holes in their teeth caused by plaque’s metabolic activity, can lose a lot of teeth. • Wound healing: There were first sutures, and they were used to close wounds. Implantable biomaterials can be traced back to this time. It is common for synthetic sutures to make polymers, but some metals can also make stitches.

TISSUE ENGINEERING

• Tissue engineering refers to the practice of combining scaffolds, cells, and biologically active molecules into functional tissues.•The goal of tissue engineering is to assemble functional constructs that restore, maintain, or improve damaged tissues or whole organs. • Some of the examples are in vitro meat, bioartificial liver device, artificial pancreas, artificial bladders, cartilage, tissue engineered blood vessels, artificial skin etc.

BIOMATERIALS IN DRUG DELIVERY

Biomaterials play a crucial role in drug delivery systems, providing a platform for controlled and targeted release of pharmaceutical agents. Here are some key points about biomaterials in drug delivery: 1) Nanostructured Biomaterials: Materials with nanoscale features, such as nanofibers and nanosheets, are explored for drug delivery due to their high surface area and unique properties. 2) Responsive Systems: Biomaterials can be engineered to respond to specific physiological cues, such as changes in pH, enzyme activity, or temperature. This responsiveness can trigger controlled drug release at the desired site. 3) Natural Biomaterials: Natural biomaterials, such as proteins, peptides, and polysaccharides, are also explored for drug delivery. These materials often have inherent biocompatibility and may offer advantages in terms of reduced immune response.

BIODEGRADABLE BIOMATERIALS

• Derived from natural sources or synthesized in labs

• Capable of breaking down naturally via biological processes

• Lower environmental impact compared to non-biodegradable materials
• Widely used in medical implants, drug delivery systems, packaging, and agriculture
• Break down through enzymatic reactions or microbial activity
• Result in harmless byproducts like water, carbon dioxide, and biomass
• Research focus on improving mechanical properties and consistent degradation rates

CHALLENGES

• Degradation Rate Control: Balancing the rate of degradation to align with the intended application, preventing premature or delayed breakdown.

• Sustainability: Finding sustainable and eco-friendly sources for biomaterials to reduce environmental impact throughout their lifecycle.

• Cost-Effectiveness: Balancing the costs involved in research, development, and production to ensure affordability for widespread use.

• Long-Term Stability: Ensuring that biomaterials retain their properties over extended periods, especially in long-term medical implants or environmental applications.

• Scale-Up and Manufacturing: Scaling production methods from laboratory-scale to industrial levels while maintaining consistent quality and properties.

FUTURE TRENDS

Smart Biomaterials: • The creation of biomaterials with responsive and adaptable qualities • Integration of sensors to provide feedback and monitoring in real time. 3D Printing and Bio-fabrication: • Developments in the production of intricate tissue structures through 3D bioprinting. • Biofabrication methods for personalized organs and implants. Artificial Intelligence (AI) Integration: • AI-driven biomaterial design and optimization. • Predictive modeling of material performance and behavior. Regenerative Medicine Focus: • A stronger focus on biomaterials in regenerative medicine. • The use of gene editing technology to precisely manipulate cells. Robotics-Integrated Biomaterials: • Biomaterials are integrated with robotic systems to improve functionality. • Surgeries utilizing biomaterial implants and robotic assistance.

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NANOTECHNOLOGY IN BIOMATERIALS

Enhanced Mechanical Properties:• Strength and durability are increased when nanomaterials, such as carbon nanotubes, are used to reinforce biomaterials. • Dental materials and orthopedic implants applications. Biodegradable Nanomaterials: • Creation of nanomaterials that degrade naturally for use as temporary implants. • Gradual deterioration without requiring surgical removal. Gene Delivery: • Nanocarriers for targeted and effective gene delivery. • Potential applications in gene therapy and genetic medicine. Biosensors and Diagnostics: • Nanoscale biosensors with high sensitivity for biomolecule detection. • Point-of-care diagnostic tools for quick and precise examination. Surface Modification: • Surfaces of biomaterials are altered using nanotechnology to increase their biocompatibility. • Prevention of foreign body reactions and immune responses.

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BIOMIMICRY IN BIOMATERIALS

• In biomaterials, biomimicry is the process of creating novel materials with improved properties and functionalities by mimicking the clever structures and processes found in nature.• In order to create materials that mimic or replicate biological structures and functions, such as self-healing mechanisms or hierarchical tissue organization, researchers look to biology. • This strategy seeks to leverage the natural world's efficiency, flexibility, and sustainability. • Biomimetic biomaterials can demonstrate enhanced mechanical strength, biocompatibility, self-healing properties, and other favorable characteristics for use in tissue engineering, medicine, and other fields. • Biomimicry in biomaterials aims to advance material science, healthcare, and sustainability by following nature's tried-and-true solutions.

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CONCLUSION

Biomaterials encompass a diverse array of materials designed to interact with biological systems. They've revolutionized healthcare by enabling innovations such as implants, tissue engineering, and drug delivery systems. The future of biomaterials holds immense potential for personalized medicine, regenerative therapies, and more biocompatible solutions. However, challenges in immune responses, long-term stability, and scalability persist, which makes it necessary to research and innovate to propel this field toward safer and more effective applications in medicine and beyond.

REFERENCES

1. https://en.m.wikipedia.org/wiki/Biomaterial 2. https://link.springer.com/content/pdf/10.1631/jzus.A2200403.pdf?pdf=button&shem=ssc 3. https://en.m.wikipedia.org/wiki/Tissue_engineering?shem=ssc 4. https://www.nibib.nih.gov/science-education/science-topics/tissue-engineering-and-regenerative-medicine

MEMBERS - AAYUDH NINAWE MEET CHHABHAIYA PURV MEGHPURIA KS ARJUN ADHITYA SINGH

Thank You!