CLC number:
On-line Access: 2024-01-26
Received: 2023-03-14
Revision Accepted: 2023-08-11
Crosschecked: 2023-09-28
Cited: 0
Clicked: 301
Yang Li, Jibao Zheng, Changning Sun & Dichen Li. Transfer film effects induced by 3D-printed polyether-ether-ketone with excellent tribological properties for joint prosthesis[J]. Journal of Zhejiang University Science D, 2024, 7(1): 43-56.
@article{title="Transfer film effects induced by 3D-printed polyether-ether-ketone
with excellent tribological properties for joint prosthesis",
author="Yang Li, Jibao Zheng, Changning Sun & Dichen Li",
journal="Journal of Zhejiang University Science D",
volume="7",
number="1",
pages="43-56",
year="2024",
publisher="Zhejiang University Press & Springer",
doi="10.1007/s42242-023-00258-y"
}
%0 Journal Article
%T Transfer film effects induced by 3D-printed polyether-ether-ketone
with excellent tribological properties for joint prosthesis
%A Yang Li
%A Jibao Zheng
%A Changning Sun & Dichen Li
%J Journal of Zhejiang University SCIENCE D
%V 7
%N 1
%P 43-56
%@ 1869-1951
%D 2024
%I Zhejiang University Press & Springer
%DOI 10.1007/s42242-023-00258-y
TY - JOUR
T1 - Transfer film effects induced by 3D-printed polyether-ether-ketone
with excellent tribological properties for joint prosthesis
A1 - Yang Li
A1 - Jibao Zheng
A1 - Changning Sun & Dichen Li
J0 - Journal of Zhejiang University Science D
VL - 7
IS - 1
SP - 43
EP - 56
%@ 1869-1951
Y1 - 2024
PB - Zhejiang University Press & Springer
ER -
DOI - 10.1007/s42242-023-00258-y
Abstract: On-demand droplet sorting is extensively applied for the efficient manipulation and genome-wide analysis of individual
cells. However, state-of-the-art microfluidic chips for droplet sorting still suffer from low Based on the building principle of additive manufacturing, printing orientation mainly determines the tribological properties
of joint prostheses. In this study, we created a polyether-ether-ketone (PEEK) joint prosthesis using fused filament fabrication
and investigated the effects of printing orientation on its tribological properties using a pin-on-plate tribometer in 25% newborn
calf serum. An ultrahigh molecular weight polyethylene transfer film is formed on the surface of PEEK due to the mechanical
capture of wear debris by the 3D-printed groove morphology, which is significantly impacted by the printing orientation of
PEEK. When the printing orientation was parallel to the sliding direction of friction, the number and size of the transfer film
increased due to higher steady stress. This transfer film protected the matrix and reduced the friction coefficient and wear
rate of friction pairs by 39.13% and 74.33%, respectively. Furthermore, our findings provide a novel perspective regarding
the role of printing orientation in designing knee prostheses, facilitating its practical applications.sorting speeds, sample loss, and
labor-intensive preparation procedures. Here, we demonstrate the development of a novel microfluidic chip that integrates
droplet generation, on-demand electrostatic droplet charging, and high-throughput sorting. The charging electrode is a copper
wire buried above the nozzle of the microchannel, and the deflecting electrode is the phosphate buffered saline in the
microchannel, which greatly simplifies the structure and fabrication process of the chip. Moreover, this chip is capable
of high-frequency droplet generation and sorting, with a frequency of 11.757 kHz in the drop state. The chip completes
the selective charging process via electrostatic induction during droplet generation. On-demand charged microdroplets can
arbitrarily move to specific exit channels in a three-dimensional (3D)-deflected electric field, which can be controlled according
to user requirements, and the flux of droplet deflection is thereby significantly enhanced. Furthermore, a lossless modification
strategy is presented to improve the accuracy of droplet deflection or harvest rate from 97.49% to 99.38% by monitoring
the frequency of droplet generation in real time and feeding it back to the charging signal. This chip has great potential for
quantitative processing and analysis of single cells for elucidating cell-to-cell variations.
Open peer comments: Debate/Discuss/Question/Opinion
<1>