title: Photomechanical effect on Type I collagen using pulsed diode laser.
abstract: BACKGROUND
  As the most abundant protein in human tissues, the use of collagen is essential in the fields of biological science and medicine.
  
  
  OBJECTIVE
  The aim of this study is to investigate the mechanical effect of pulsed laser irradiation on collagen tissue.
  
  
  METHODS
  With various laser parameters such as peak power, pulse width, and repetition rate, the induced stresses on samples were measured and analyzed. Monte Carlo simulation was performed to investigate the effect of laser parameters on the collagen sample.
  
  
  RESULTS
  The results indicated that the magnitude of mechanical stress could be controlled by various laser parameters.
  
  
  CONCLUSIONS
  This study can be used in biostimulation for therapy and mechanoreceptor stimulation for tactile application.
authors.affiliation: Department of Biomedical Engineering, BK21+ Research Institute of Biomedical Engineering, College of Biomedical and Health Science, Konkuk University, Chungju, Korea.
authors.forename: Gu-In
authors.initials: GI
authors.lastname: Jung
authors.affiliation: Department of Biomedical Engineering, BK21+ Research Institute of Biomedical Engineering, College of Biomedical and Health Science, Konkuk University, Chungju, Korea.
authors.forename: Ji-Sun
authors.initials: JS
authors.lastname: Kim
authors.affiliation: Department of Biomedical Engineering, BK21+ Research Institute of Biomedical Engineering, College of Biomedical and Health Science, Konkuk University, Chungju, Korea.
authors.forename: Tae-Hee
authors.initials: TH
authors.lastname: Lee
authors.affiliation: Department of Biomedical Engineering, BK21+ Research Institute of Biomedical Engineering, College of Biomedical and Health Science, Konkuk University, Chungju, Korea.
authors.forename: Ju-Hyeon
authors.initials: JH
authors.lastname: Choi
authors.affiliation: Department of Biomedical Engineering, BK21+ Research Institute of Biomedical Engineering, College of Biomedical and Health Science, Konkuk University, Chungju, Korea.
authors.forename: Han-Byeol
authors.initials: HB
authors.lastname: Oh
authors.affiliation: Department of Biomedical Engineering, BK21+ Research Institute of Biomedical Engineering, College of Biomedical and Health Science, Konkuk University, Chungju, Korea.
authors.forename: A-Hee
authors.initials: AH
authors.lastname: Kim
authors.affiliation: Department of Biomedical Engineering, BK21+ Research Institute of Biomedical Engineering, College of Biomedical and Health Science, Konkuk University, Chungju, Korea.
authors.forename: Jun-Sik
authors.initials: JS
authors.lastname: Kim
authors.affiliation: Department of Photonic Engineering, Chosun University, Gwangju, Korea.
authors.forename: Jong-Rak
authors.initials: JR
authors.lastname: Park
authors.affiliation: Department of Biomedical Engineering, BK21+ Research Institute of Biomedical Engineering, College of Biomedical and Health Science, Konkuk University, Chungju, Korea.
authors.forename: Soon-Cheol
authors.initials: SC
authors.lastname: Chung
authors.affiliation: Department of Physics, Ajou University, Suwon, Korea.|Department of Energy Systems Research, Ajou University, Suwon, Korea.
authors.forename: Dong-Il
authors.initials: DI
authors.lastname: Yeom
authors.affiliation: Department of Biomedical Engineering, BK21+ Research Institute of Biomedical Engineering, College of Biomedical and Health Science, Konkuk University, Chungju, Korea.
authors.forename: Hyung-Sik
authors.initials: HS
authors.lastname: Kim
authors.affiliation: Department of Biomedical Engineering, BK21+ Research Institute of Biomedical Engineering, College of Biomedical and Health Science, Konkuk University, Chungju, Korea.
authors.forename: Jae-Hoon
authors.initials: JH
authors.lastname: Jun
mesh_terms: D000818:Animals; D024042:Collagen Type I / Q000528:radiation effects*; D005399:Fishes; D054023:Lasers, Semiconductor; D028022:Low-Level Light Therapy / Q000379:methods*; D009010:Monte Carlo Method; D013314:Stress, Mechanical
chemical_list: D024042:Collagen Type I
keywords: Biostimulation; laser-tissue interaction; photomechanical effect; recoil pressure; thermoelastic effect