Plastic bottle recycling rate has been greatly improved

In the 1990s, discarded plastic bottles were found everywhere. Later, with the continuous improvement of the recycling technology of domestic waste plastic bottles, the army of plastic bottle recycling was born, and the recycling rate of plastic bottles was greatly improved. Now the recycling rate of PET waste plastic bottles has been very high, and even in various industries to compete for regeneration. Plastic bottle resources and mutual price increases, domestic waste plastic bottle resources are becoming increasingly tense, and began to affect related textile, packaging and other industries.

In fact, we believe that the recycling of PET bottle recycling production line, related companies should not focus on the domestic. In some developing countries, such as Latin America, Southeast Asia, Africa, etc., their recycling technology for waste plastic bottles is still very low. As a result, the recycling awareness of discarded plastic bottles in these countries is generally low and there are a large number of available resources. If you can actively enter these markets, on the one hand, recycling plastic bottles will solve the local environmental problems will be supported by the government, on the other hand, the cost of obtaining waste plastic bottles will be lower. There is still a chance to recycle plastic bottles in these places.

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For the recycling of multinational plastic bottles, the key issues and the cost of transportation, if it can be well controlled, I believe that the prospects are unlimited.

Waste plastic bottles can be converted into highly effective antifungal drugs. The research was conducted by IBM nanomedical researchers and the Singapore Institute of Bioengineering and Nanotechnology. The researchers turned recycled plastic bottles into non-toxic, biocompatible, highly effective antifungal nanofibers that treat resistant fungal infections and bacterial infections such as methicillin-resistant Staphylococcus aureus (MRSA).

According to reports, more than 1 billion people worldwide are infected with fungi every year, ranging from local skin infections (such as athlete's foot) to life-threatening fungal blood infections. When the patient is treated with antibiotics, the immune system is damaged. There is an urgent need to develop highly effective and disease-specific antifungal agents to alleviate the growing problem of drug resistance. Traditional antifungal treatments require intracellular invasion of infection, but it is difficult to target and penetrate the fungal membrane wall. In addition, because fungal metabolism is similar to mammalian cells, existing drugs are unable to distinguish between healthy and infected cells.

Based on this, the researchers used an organic catalytic process to promote the conversion of ordinary plastic materials made of polyethylene terephthalate (PET), in the process of producing new molecules of antifungal agents. These new antifungal agents are self-assembled by a hydrogen bonding method, such as molecular velcro bonds, which form nanofibers in a polymer-like manner to exhibit an active antifungal effect. This new nanofiber is positively charged and can be selectively targeted and attached to a negatively charged fungal membrane based solely on electrostatic interactions. It then prevents it from attacking by breaking down and destroying the walls of the fungal cell membrane.