Author – Ritesh Ranjan: The growing use of disposable medical products has created a serious environmental challenge worldwide. Wound dressings, bandages, protective coatings and other healthcare materials are often manufactured using petroleum-based plastics. Although these materials offer durability and protection, they remain in the environment for years after disposal and contribute significantly to medical plastic waste.
Researchers at the National Institute of Technology Rourkela, commonly known as NIT Rourkela, have developed a promising solution to this problem. The institute has created a biodegradable and antimicrobial bio-composite film that could replace conventional plastic materials in several healthcare applications.
The innovative film combines a bacterial bioplastic with naturally extracted neem oil. It has been designed to provide the mechanical strength, flexibility and antimicrobial protection required for wound care while reducing dependence on non-biodegradable plastics.
NIT Rourkela Secures Patent for the Innovation
The research was led by Dr. Angana Sarkar, Associate Professor in the Department of Biotechnology and Medical Engineering at NIT Rourkela, along with research graduate Dr. Pritam Bajirao.
The team has secured a patent for the invention titled “Biodegradable and Antimicrobial Bio-composite Film and Process for Preparing Thereof.” The patent number is 594073, while the application number is 202531060261.
The patent highlights the scientific and practical value of the technology. It also strengthens the possibility of further development, industry collaboration and commercial production.
Unlike many laboratory innovations that remain limited to experimental research, this bio-composite film has been developed with real-world healthcare applications in mind.
The Environmental Problem of Medical Plastic Waste
Healthcare systems depend heavily on single-use products to maintain hygiene and prevent infection. However, many of these products are made from petroleum-derived plastics that do not decompose naturally.
Used wound dressings, disposable medical films, packaging materials and plastic-based bandages frequently end up in landfills or waste-processing facilities. Some medical waste is incinerated, which can release harmful emissions if it is not managed properly.
The continuous disposal of these materials increases pressure on hospitals, municipal waste systems and the environment. As healthcare services expand, the volume of medical plastic waste is also expected to grow.
NIT Rourkela’s biodegradable film offers an alternative that could perform essential medical functions and break down more naturally after disposal. Such materials could help healthcare institutions reduce their environmental footprint without compromising patient care.
How the Biodegradable Film Is Made
The foundation of the film is a natural bioplastic produced by bacteria. The bacteria are grown using sugarcane molasses, an affordable by-product of the sugar industry.
Using sugarcane molasses offers two important advantages. First, it provides a cost-effective material for bacterial growth. Second, it adds value to an agricultural by-product that might otherwise have limited applications.
Bioplastics are generally considered more sustainable than petroleum-based plastics. However, some bioplastics can be brittle, difficult to process or slow to degrade under natural conditions. These limitations can restrict their use in flexible medical products.
To overcome these challenges, the NIT Rourkela researchers incorporated naturally extracted neem oil into the bacterial bioplastic. The neem oil improves the film’s flexibility and functional performance while also providing antimicrobial properties.
The result is a bio-composite material that combines sustainability, strength and protection against bacterial growth.
Why Neem Oil Is an Important Ingredient
Neem has been used in traditional healthcare practices for generations. Neem oil contains naturally occurring compounds that are known for their antimicrobial properties.
In the NIT Rourkela film, neem oil serves more than one purpose. It helps modify the physical characteristics of the bioplastic, making the material more flexible and suitable for medical use. At the same time, it helps limit bacterial growth on the surface of the film.
This antimicrobial quality is particularly important for wound care. Open wounds can be vulnerable to bacterial contamination, which may delay healing and increase the risk of complications.
A biodegradable film that also provides antimicrobial protection could therefore offer considerable value in wound dressings, medical coatings and plastic-free bandages.
Improved Strength and Biomedical Performance
According to the research team, laboratory testing showed improvements in several important properties of the bio-composite film.
The material demonstrated better mechanical strength and flexibility, which could allow it to withstand handling and movement when used as a dressing or coating. It also showed improved thermal stability, indicating that it can maintain its properties across suitable temperature conditions.
Another important characteristic is hydrophobicity, or the ability to resist water. Controlled moisture resistance can be beneficial in medical materials because it helps protect the wound area from external contamination while supporting an appropriate healing environment.
Dr. Angana Sarkar stated that the material is fully biodegradable and environmentally sustainable. Its combination of antimicrobial activity, flexibility and wound-care support suggests strong potential for biomedical applications.
However, wider clinical use would require further testing, regulatory evaluation and manufacturing validation.
Potential Healthcare Applications
The patented film could be used across a range of healthcare products, including:
- Biodegradable wound dressings
- Plastic-free medical bandages
- Antimicrobial films
- Protective biomedical coatings
- Sustainable medical packaging or covering materials
These applications make the technology relevant to hospitals, healthcare providers, medical-product manufacturers and biotechnology companies.
The film may be especially useful in situations where disposable materials are necessary but long-term plastic waste needs to be reduced. Replacing even a portion of conventional medical plastics with biodegradable alternatives could create a meaningful environmental impact.
Affordable Production and Commercial Potential
Cost is one of the biggest factors affecting the adoption of sustainable healthcare technologies. An environmentally friendly product may struggle to gain acceptance when it is significantly more expensive than the material it is designed to replace.
The estimated production cost of the NIT Rourkela film is Rs. 14.33 for an area of approximately 44.18 cm². This relatively low estimated cost suggests that the technology could have potential for affordable, large-scale production.
The use of bacterial bioplastic, sugarcane molasses and naturally extracted neem oil may also support domestic sourcing and reduce dependence on expensive imported materials.
Commercial adoption will depend on factors such as scalability, sterilisation requirements, shelf life, clinical performance, regulatory approval and partnerships with medical-product manufacturers. Nevertheless, the reported production cost provides an encouraging foundation for future development.
Supporting Atmanirbhar Bharat and Make in India
The innovation aligns with several of India’s national development priorities, including Atmanirbhar Bharat, Make in India and the National BioE3 Policy.
Atmanirbhar Bharat promotes domestic capabilities and reduced dependence on imported technologies. Make in India encourages local manufacturing, while the National BioE3 Policy supports biotechnology-led development for the economy, environment and employment.
By using biological processes and locally available resources to create a sustainable healthcare material, the NIT Rourkela innovation supports all three objectives.
It also demonstrates how research institutions can contribute to environmental protection, public health and industrial development at the same time.
A Promising Step Towards Sustainable Healthcare
NIT Rourkela’s biodegradable antimicrobial film represents an important step towards reducing plastic use in healthcare. By combining bacterial bioplastic with neem oil, the researchers have developed a material that is biodegradable, flexible, antimicrobial and potentially affordable.
Its possible applications in wound dressings, bandages, medical films and coatings make it more than an experimental material. With further clinical testing, regulatory evaluation and industry collaboration, the technology could become a practical alternative to petroleum-based medical plastics.
The invention also shows how traditional natural resources and modern biotechnology can work together to solve present-day environmental challenges.
As hospitals and healthcare manufacturers search for safer and more sustainable materials, innovations such as this bio-composite film could help shape the future of medical care in India and across the world.
Frequently Asked Questions
1. What has NIT Rourkela developed?
NIT Rourkela researchers have developed a biodegradable and antimicrobial bio-composite film using bacterial bioplastic and naturally extracted neem oil. The material is intended for healthcare applications such as wound dressings, bandages, medical coatings and antimicrobial films.
2. Who developed the biodegradable antimicrobial film?
The research team was led by Dr. Angana Sarkar, Associate Professor in the Department of Biotechnology and Medical Engineering at NIT Rourkela, along with research graduate Dr. Pritam Bajirao.
3. Why is neem oil used in the bio-composite film?
Neem oil improves the flexibility and physical performance of the film. Its natural antimicrobial properties also help prevent bacterial growth, making the material potentially suitable for wound-care applications.
4. How much does the biodegradable film cost to produce?
The estimated production cost is Rs. 14.33 for approximately 44.18 cm² of film. This relatively affordable cost indicates potential for larger-scale manufacturing, subject to further testing and commercial development.
5. Can the film immediately replace conventional medical plastics?
The film has shown promising laboratory properties, including biodegradability, flexibility, strength, thermal stability and antimicrobial activity. However, additional clinical testing, regulatory approvals and manufacturing validation may be required before it can be widely used in healthcare settings.