TY - JOUR ID - 15156 TI - Electroless deposition of nickel on biocompatible poly(dimethylsiloxane) after a laser processing as a pretreatment JO - Advanced Materials Letters JA - AML LA - en SN - 0976-3961 AU - Armyanov, Stephan AU - Valova, Eugenia AU - Kolev, Konstantin AU - Tatchev, Dragomir AU - Atanasov, Petar AU - Stankova, Nadya AD - Y1 - 2018 PY - 2018 VL - 9 IS - 2 SP - 101 EP - 106 KW - Electroless nickel KW - poly(dimethylsiloxane) PDMS KW - Laser treatment KW - XPS KW - Raman spectroscopy KW - FE SEM KW - ray micro KW - tomography DO - 10.5185/amlett.2018.1818 N2 - Due to its biocompatibility poly(dimethylsiloxane) (PDMS) is an important material for the development of microelectromechanical systems or long-term, medical implants. The paper describes the morphology modifications and surface chemistry of PDMS during pulse laser treatment. SEM, μ-Raman spectroscopy, X-ray micro-tomography and XPS analyses are applied. PDMS decomposition takes place as a function of laser energy absorption. This leads to different oxidation degree of silicon, as shown by the curve fitting of Si 2p and O 1s. The irradiated parts become hydrophilic in contrast with the rest of the material, which remains hydrophobic. This is the condition enabling successful selective electroless deposition of Ni in the tracks, excluding the usual preceding sensibilization and chemical activation. This process is accomplished successfully after femtosecond laser irradiation and it is found that the time interval between laser treatment and metallization is not a critical parameter. UR - https://aml.iaamonline.org/article_15156.html L1 - https://aml.iaamonline.org/article_15156_faf3a90940c83c5512f9a7b62810c824.pdf ER -