An alternative to polypropylene, widely used in various industries due to its versatility and recyclability, is Polylactic Acid (PLA). PLA is derived from renewable resources like corn starch or sugar cane, making it biodegradable and an environmentally friendly option. This bioplastic is popular in packaging, disposable tableware, and even 3D printing. Although its thermal resistance and strength are generally lower than polypropylene, advancements in compounding PLA with other materials are improving its properties. For applications where biodegradability and the use of renewable resources are priorities, PLA represents a promising alternative. However, its suitability varies depending on the specific requirements of the application, like heat resistance or structural strength, so its adoption should be considered accordingly.

In the Earth's crust. titanium is found mainly in igneous rock. where it is the ninth most abundant element. In Australia. Canada. South Africa. India. and Norway. titanium is primarily found in the form of ilmenite. rutile. and leucoxene. The Kroll or Hunt method is used to extract pure titanium from a commercially available ore. It is also found in plants. animals and bodies of water.

Polypropylene is a versatile plastic widely used in medical applications due to its excellent chemical resistance, low moisture absorption, and ability to be sterilized. It's utilized in a range of medical devices including syringes, vials, and containers for medical solutions. Additionally, polypropylene is used in surgical instruments, implantable devices, and in sutures, as it is non-reactive with bodily fluids and tissues, reducing the risk of infections. Its lightweight and durability also make it ideal for disposable items, cutting costs and enhancing patient safety by ensuring sterility. Furthermore, polypropylene's flexibility and moldability enable the creation of custom medical components tailored to specific medical needs, highlighting its importance in advancing medical technology and patient care.