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Chinese Journal of Lasers, Volume. 49, Issue 10, 1002605(2022)

Fabrication and Cell-Adhesion Evaluation of Laser-Ablated Microprotrusion or Microgroove on Titanium

Wanying He1,2, Peng Yao1,2、*, Dongkai Chu1,2, Huiqiang Sun3, Qingguo Lai4, Qingwei Wang1,2, Pengfei Wang1,2, Shuoshuo Qu1,2, and Chuanzhen Huang5
Author Affiliations
  • 1Center for Advanced Jet Engineering Technologies (CaJET), School of Mechanical Engineering, Shandong University, Jinan 250061, Shandong, China
  • 2Key Laboratory of High Efficiency and Clean Mechanical Manufacture, Shandong University, Ministry of Education, Jinan 250061, Shandong, China
  • 3Department of Prosthodontics, School of Stomatology, Shandong University, Jinan 250012, Shandong, China
  • 4Department of Oral and Maxillofacial Surgery, the Second Hospital of Shandong University, Jinan 250033, Shandong, China
  • 5School of Mechanical Engineering, Yanshan University, Qinhuangdao 066004, Hebei, China
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    Figures & Tables(10)
    SEM images of femtosecond laser processed microgroove (a)(c) and microprotrusion (d)(f). (a)(d) Different overlapping rates (RO); (b)(e) different spot diameters (d), laser influences (φ), and overlapping rates; (c)(f) different laser influences

    Fig. 1. SEM images of femtosecond laser processed microgroove (a)(c) and microprotrusion (d)(f). (a)(d) Different overlapping rates (RO); (b)(e) different spot diameters (d), laser influences (φ), and overlapping rates; (c)(f) different laser influences

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    SEM images of picosecond laser processed microgroove (a)(c) and microprotrusion (d)(f). (a)(d)(f) Different laser influences (φ); (b)(c)(e) different overlapping rates (RO)

    Fig. 2. SEM images of picosecond laser processed microgroove (a)(c) and microprotrusion (d)(f). (a)(d)(f) Different laser influences (φ); (b)(c)(e) different overlapping rates (RO)

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    Surface profiles of femtosecond laser processed microgroove (a)(c) and microprotrusion (d)(f). (a)(d) Different overlapping rates [pulse number (N)]; (b)(e) different spot diameters, laser influences and overlapping rates (pulse number); (c)(f) different laser influences

    Fig. 3. Surface profiles of femtosecond laser processed microgroove (a)(c) and microprotrusion (d)(f). (a)(d) Different overlapping rates [pulse number (N)]; (b)(e) different spot diameters, laser influences and overlapping rates (pulse number); (c)(f) different laser influences

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    Surface profile of picosecond laser processed microgroove (a)(c) and microprotrusion (d)(f). (a)(d)(f) Different laser influences; (b)(c)(e) different overlapping rates (pulse number)

    Fig. 4. Surface profile of picosecond laser processed microgroove (a)(c) and microprotrusion (d)(f). (a)(d)(f) Different laser influences; (b)(c)(e) different overlapping rates (pulse number)

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    SEM images and EDS results of laser processed liner array. (a)(b) Femtosecond laser processing; (c)(d) picosecond laser processing

    Fig. 5. SEM images and EDS results of laser processed liner array. (a)(b) Femtosecond laser processing; (c)(d) picosecond laser processing

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    Contact angle of liner array varying with scanning interval. (a) Femtosecond laser processed surface; (b)(c) femtosecond laser processed and post-processed surface; (d) picosecond laser processed and post-processed surface

    Fig. 6. Contact angle of liner array varying with scanning interval. (a) Femtosecond laser processed surface; (b)(c) femtosecond laser processed and post-processed surface; (d) picosecond laser processed and post-processed surface

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    SEM images of rBMSCs adhesion on femtosecond laser processed surfaces (48 h). (a) Control; (b) microprotrusion; (c) microgroove 1; (d) microgroove 2

    Fig. 7. SEM images of rBMSCs adhesion on femtosecond laser processed surfaces (48 h). (a) Control; (b) microprotrusion; (c) microgroove 1; (d) microgroove 2

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    Cell proliferation of femtosecond laser processed surfaces

    Fig. 8. Cell proliferation of femtosecond laser processed surfaces

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    SEM images of rBMSCs adhesion on picosecond laser processed surfaces (48 h). (a) Micropores; (b) microprotrusion; (c) microgroove 1; (d) microgroove 2

    Fig. 9. SEM images of rBMSCs adhesion on picosecond laser processed surfaces (48 h). (a) Micropores; (b) microprotrusion; (c) microgroove 1; (d) microgroove 2

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    • Table 1. Ablation threshold of titanium under laser with different pulse widths

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      Table 1. Ablation threshold of titanium under laser with different pulse widths

      LaserW /fsPRF /kHzλ /nmE /μJD /μmω0 /μmφth /(J·cm－2)
      Femtosecond laser3518001.13, 3.19, 5.24, 7.29, 9.34, 11.40, 13.45, 15.50, 17.56, 19.617.38, 15.44, 20.11, 22.89, 25.47, 27.47，30.27, 31.60, 34.40, 35.2014.531.01
      Picosecond laser151001064258.05, 310.92, 361.62, 415.52，468.27, 517.8092.00, 95.00, 99.00，110.00，115.76, 110.6959.673.23
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    Wanying He, Peng Yao, Dongkai Chu, Huiqiang Sun, Qingguo Lai, Qingwei Wang, Pengfei Wang, Shuoshuo Qu, Chuanzhen Huang. Fabrication and Cell-Adhesion Evaluation of Laser-Ablated Microprotrusion or Microgroove on Titanium[J]. Chinese Journal of Lasers, 2022, 49(10): 1002605

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    Paper Information

    Received: Dec. 7, 2021

    Accepted: Feb. 17, 2022

    Published Online: May. 9, 2022

    The Author Email: Yao Peng (yaopeng@sdu.edu.cn)

    DOI:10.3788/CJL202249.1002605

    Topics

    laser devices and laser physics
    Lasers and Laser Optics
    Laser physics
    laser manufacturing
    Instrumentation, Measurement and Metrology