Medical & Biological Engineering & Computing

, Volume 48, Issue 8, pp 793–798

Static magnetic field exposure promotes differentiation of osteoblastic cells grown on the surface of a poly-l-lactide substrate

  • Sheng-Wei Feng
  • Yi-June Lo
  • Wei-Jen Chang
  • Che-Tong Lin
  • Sheng-Yang Lee
  • Yoshimitsu Abiko
  • Haw-Ming Huang
Original Article


This study investigated the effects of static magnetic fields on the differentiation of MG63 cells cultured on the surface of poly-l-lactide (PLLA) substrates. The cells were continuously exposed to a 4,000 Gauss-static magnetic field (SMF) for 5 days. The proliferation effects of the SMF were measured by MTT assay. Morphologic changes and extracellular matrix release were observed by scanning electron microscopy. The effects of the SMF on alkaline phosphatase activity levels were compared between exposed and unexposed cells. The SMF-exposed cells exhibited decreased MTT values after 1 and 3 days of culture. In addition, SMF exposure promoted the expression of extracellular matrix in MG63 cells on the PLLA substrate. After 1 day, the alkaline phosphatase-specific activity of SMF-exposed MG63 cells was significantly increased (P < 0.05) with a ratio of 1.5-fold. These results show that MG63 cells, seeded on a PLLA disc and treated with SMF, had a more differentiated phenotype.


Static magnetic field PLLA MG63 Differentiation 


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Copyright information

© International Federation for Medical and Biological Engineering 2010

Authors and Affiliations

  • Sheng-Wei Feng
    • 1
  • Yi-June Lo
    • 2
  • Wei-Jen Chang
    • 1
  • Che-Tong Lin
    • 1
  • Sheng-Yang Lee
    • 1
  • Yoshimitsu Abiko
    • 3
  • Haw-Ming Huang
    • 4
    • 5
    • 6
  1. 1.School of DentistryTaipei Medical UniversityTaipeiTaiwan, ROC
  2. 2.Dental Department of Wan-Fang HospitalTaipei Medical UniversityTaipeiTaiwan, ROC
  3. 3.Department of Biochemistry, School of Dentistry at MatsudoNihon UniversityChibaJapan
  4. 4.Graduate Institute of Biomedical Materials and EngineeringTaipei Medical UniversityTaipeiTaiwan, ROC
  5. 5.Research Center for Biomedical Implants and Microsurgery DevicesTaipei Medical UniversityTaipeiTaiwan, ROC
  6. 6.Research Center for Biomedical DevicesTaipei Medical UniversityTaipeiTaiwan, ROC

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