The method for fast fabrication of superhydrophobic surfaces was proposed to resist the formation of biofilm of Escherichia coli (E. coli) and Staphylococcus aureus (S. aureus) for orthopedic and dental implants. Laser beam machining with nanosecond pulsed laser (Nd:YAG) was used to fabricate pit structure on Grade-5 Ti–6Al–4V alloy followed by annealing (at 300 °C with different time scales) in order to reduce the transition time from hydrophilic to superhydrophobic surface generation. Field emission scanning electron microscopy (FE-SEM) and X-ray diffraction (XRD) techniques were used to characterize the textured samples. The surface wettability of plain and textured samples was measured by the sessile drop method using goniometer. The biofilm formation was qualitatively and quantitatively evaluated by FE-SEM and crystal violet binding assay, respectively. The biofilm formation was observed on plain (hydrophilic) surface for both the types of bacteria, whereas significantly less biofilm formation was observed on the laser textured (superhydrophobic) surfaces. The proposed method helps in reducing the risk of infection associated with implants without using cytotoxic bactericidal agents.
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March 2018
This article was originally published in
Journal of Micro and Nano-Manufacturing
Research-Article
Fast Fabrication of Superhydrophobic Titanium Alloy as Antibacterial Surface Using Nanosecond Laser Texturing
Deepak Patil,
Deepak Patil
Department of Mechanical Engineering,
Indian Institute of Technology Delhi,
New Delhi 110016, India
e-mail: deepakpatil3030@gmail.com
Indian Institute of Technology Delhi,
New Delhi 110016, India
e-mail: deepakpatil3030@gmail.com
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S. Aravindan,
S. Aravindan
Department of Mechanical Engineering,
Indian Institute of Technology Delhi,
New Delhi 110016, India
e-mail: aravindan@mech.iitd.ac.in
Indian Institute of Technology Delhi,
New Delhi 110016, India
e-mail: aravindan@mech.iitd.ac.in
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Mishi Kaushal Wasson,
Mishi Kaushal Wasson
Kusuma School of Biological Sciences,
Indian Institute of Technology Delhi,
New Delhi 110016, India
e-mail: mishi.wasson@gmail.com
Indian Institute of Technology Delhi,
New Delhi 110016, India
e-mail: mishi.wasson@gmail.com
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Vivekanandan P.,
Vivekanandan P.
Kusuma School of Biological Sciences,
Indian Institute of Technology Delhi,
New Delhi 110016, India
e-mail: vperumal@bioschool.iitd.ac.in
Indian Institute of Technology Delhi,
New Delhi 110016, India
e-mail: vperumal@bioschool.iitd.ac.in
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P. V. Rao
P. V. Rao
Department of Mechanical Engineering,
Indian Institute of Technology Delhi,
New Delhi 110016, India
e-mail: pvrao@mech.iitd.ernet.in
Indian Institute of Technology Delhi,
New Delhi 110016, India
e-mail: pvrao@mech.iitd.ernet.in
Search for other works by this author on:
Deepak Patil
Department of Mechanical Engineering,
Indian Institute of Technology Delhi,
New Delhi 110016, India
e-mail: deepakpatil3030@gmail.com
Indian Institute of Technology Delhi,
New Delhi 110016, India
e-mail: deepakpatil3030@gmail.com
S. Aravindan
Department of Mechanical Engineering,
Indian Institute of Technology Delhi,
New Delhi 110016, India
e-mail: aravindan@mech.iitd.ac.in
Indian Institute of Technology Delhi,
New Delhi 110016, India
e-mail: aravindan@mech.iitd.ac.in
Mishi Kaushal Wasson
Kusuma School of Biological Sciences,
Indian Institute of Technology Delhi,
New Delhi 110016, India
e-mail: mishi.wasson@gmail.com
Indian Institute of Technology Delhi,
New Delhi 110016, India
e-mail: mishi.wasson@gmail.com
Vivekanandan P.
Kusuma School of Biological Sciences,
Indian Institute of Technology Delhi,
New Delhi 110016, India
e-mail: vperumal@bioschool.iitd.ac.in
Indian Institute of Technology Delhi,
New Delhi 110016, India
e-mail: vperumal@bioschool.iitd.ac.in
P. V. Rao
Department of Mechanical Engineering,
Indian Institute of Technology Delhi,
New Delhi 110016, India
e-mail: pvrao@mech.iitd.ernet.in
Indian Institute of Technology Delhi,
New Delhi 110016, India
e-mail: pvrao@mech.iitd.ernet.in
1Corresponding author.
Contributed by the Manufacturing Engineering Division of ASME for publication in the JOURNAL OF MICRO- AND NANO-MANUFACTURING. Manuscript received April 29, 2017; final manuscript received September 15, 2017; published online December 14, 2017. Assoc. Editor: Jian Cao.
J. Micro Nano-Manuf. Mar 2018, 6(1): 011002 (8 pages)
Published Online: December 14, 2017
Article history
Received:
April 29, 2017
Revised:
September 15, 2017
Citation
Patil, D., Aravindan, S., Kaushal Wasson, M., P., V., and Rao, P. V. (December 14, 2017). "Fast Fabrication of Superhydrophobic Titanium Alloy as Antibacterial Surface Using Nanosecond Laser Texturing." ASME. J. Micro Nano-Manuf. March 2018; 6(1): 011002. https://doi.org/10.1115/1.4038093
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