The development of platinum-rhodium alloy coatings on SS304 using a pulse/direct electrodeposition technique and their application to antibacterial activity

Devendra, Bharath K.; Praveen, B. M.; Kumar, Hemantha; Chethana, K.R.

doi:10.1016/j.jics.2022.100466

Cited by 9 publications

(1 citation statement)

References 24 publications

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“…The objective is to utilize the coating behavior by either inhibiting bacterial adhesion or chemically reducing the live bacteria (Gao et al, 2022). A platinum-based coating applied through magnetron sputtering or electrodeposition on various biomaterials has been developed in several studies (Scholz et al, 2005;Abuayyash et al, 2020;Czerwińska-Główka et al, 2020;Brown et al, 2021;Devendra et al, 2022) due to platinum's antimicrobial ability. Platinum is renowned for its resistance to corrosion, oxidation, and heat.…”

Section: Introductionmentioning

confidence: 99%

Optimizing PEEK implant surfaces for improved stability and biocompatibility through sandblasting and the platinum coating approach

Faadhila,

Taufiqurrakhman,

Katili

et al. 2024

Front. Mech. Eng.

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Polyether–ether–ketone (PEEK) is a commonly employed biomaterial for spinal, cranial, and dental implant applications due to its mechanical properties, bio-stability, and radiolucency, especially when compared to metal alloys. However, its biologically inert behavior poses a substantial challenge in osseointegration between host bone and PEEK implants, resulting in implant loosening. Previous studies identified PEEK surface modification methods that prove beneficial in enhancing implant stability and supporting cell growth, but simultaneously, those modifications have the potential to promote bacterial attachment. In this study, sandblasting and sputter coating are performed to address the aforementioned issues as preclinical work. The aim is to investigate the effects of surface roughness through alumina sandblasting and a platinum (Pt) sputtered coating on the surface friction, cell viability, and bacterial adhesion rates of PEEK material. This study reveals that a higher average surface roughness of the PEEK sample (the highest was 1.2 μm obtained after sandblasting) increases the coefficient of friction, which was 0.25 compared to the untreated PEEK of 0.14, indicating better stability performance but also increased bacterial adhesion. A novelty of this study is that the method of Pt coating after alumina sandblasting is seen to significantly reduce the bacterial adhesion by 67% when compared to the sandblasted PEEK sample after 24 h immersion, implying better biocompatibility without changing the cell viability performance.

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