RESEARCHERS DEVELOP 3D PRINTED PARTS TO FIGHT INFECTIOUS DISEASES

3D Printing Industry | 1/22/2020 | Anas Essop
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Scientists from the University of Sheffield have integrated antibacterial properties into polymer powders to create 3D printed parts capable of fighting infectious diseases.

In a study published in Scientific Reports, silver-based additives were combined with PA 12 and then processed using an EOS Formiga P100 SLS system to additively manufacture antimicrobial components that were not toxic to human cells.

Dr - Candice - Majewski - Sheffield - Centre

Dr. Candice Majewski from Sheffield’s Centre for Advanced Additive Manufacturing, and lead researcher of this research, stated, “Managing the spread of harmful bacteria, infection and the increasing resistance to antibiotics is a global concern. Introducing antibacterial protection to products and devices at the point of manufacture could be an essential tool in this fight.”

Fights diseases with additive manufacturing

Researchers - Products - Market - Additives - Desire

According to the researchers, antimicrobial products are currently available to purchase, with a growing global market for antimicrobial additives due to the desire to improve health. They can be seen to healthcare in implants, prosthetics, splints, and surfaces and devices in clinical settings (such as doors, sinks, instruments, and keyboards).

A selection of 3D printed parts containing and without the antibacterial additive, known as Biocote B65003, into bacterial solutions to test its ability to reduce the number of bacteria after a day. It was found that the parts containing the antibacterial additive were effective against the two main groups of bacteria, Gram-positive (Staphylococcus aureus) and Gram-negative (Pseudomonas aeruginosa). This kind of bacteria is known to cause life-threatening diseases such as pneumonia, meningitis, sepsis, and MRSA.

Engineering - Properties - Composite - Polyamide - Base

“The engineering properties of the new composite are indistinguishable from those of the standard polyamide 12 base material,” the study continues. “The material is most effective in nutrient-poor hydrated...
(Excerpt) Read more at: 3D Printing Industry
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