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Antibacterial infection and immune-evasive coating for orthopedic implants

Authors
채교민Woo Young JangKIJUNPARKJinhyeok LeeHyunchul KimKyoungbun LeeChang Kyu Lee이연택Soon Hyuck LeeJUNGMOK SEO
Issue Date
Oct-2020
Publisher
American Association for the Advancement of Science
Keywords
Anti-bacterial; Immune-evasive; Multifunctional coating; Implantable device
Citation
SCIENCE ADVANCES, v.6, no.44, pp.eabb0025-1 - eabb0025-15
Journal Title
SCIENCE ADVANCES
Volume
6
Number
44
Start Page
eabb0025-1
End Page
eabb0025-15
URI
https://yscholarhub.yonsei.ac.kr/handle/2021.sw.yonsei/5305
DOI
10.1126/sciadv.abb0025
ISSN
2375-2548
Abstract
Bacterial infection and infection-induced immune response have been a life-threatening risk for patients having orthopedic implant surgeries. Conventional biomaterials are vulnerable to biocontamination, which causes bacterial invasion in wounded areas, leading to postoperative infection. Therefore, development of anti-infection and immune-evasive coating for orthopedic implants is urgently needed. Here, we developed an advanced surface modification technique for orthopedic implants termed lubricated orthopedic implant surface (LOIS), which was inspired by slippery surface of Nepenthes pitcher plant. LOIS presents a long-lasting, extreme liquid repellency against diverse liquids and biosubstances including cells, proteins, calcium, and bacteria. In addition, we confirmed mechanical durability against scratches and fixation force by simulating inevitable damages during surgical procedure ex vivo. The antibiofouling and anti-infection capability of LOIS were thoroughly investigated using an osteomyelitis femoral fracture model of rabbits. We envision that the LOIS with antibiofouling properties and mechanical durability is a step forward in infection-free orthopedic surgeries.
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