Synthesis of amorphous SiCO nanowires was carried out by means of direct current are discharge. Free-standing SiCO nanowires were deposited on the surface of a graphite crucible without any catalyst and template. The ...Synthesis of amorphous SiCO nanowires was carried out by means of direct current are discharge. Free-standing SiCO nanowires were deposited on the surface of a graphite crucible without any catalyst and template. The SiCO nanowires were analyzed by XRD, SEM, TEM, XPS, and FTIR. The SiCO nanowires were typically 20-100 gm in length and 10-100 nm in diameter as measured by SEM and TEM. The XPS and FTIR spectroscopy analysis confirmed that the Si atoms share bonds with O and C atoms in mixed SiCO units. The PL spectrum of the SiCO nanowires showed strong and stable white emissions at 454 and 540 nm. A plasma-assisted vapor-solid growth mechanism is proposed to be responsible for the formation of the SiCO nanowires.展开更多
Objective:To study the characteristics of the intraocular lens using ion beam sputtering depositing titanium nitride thin film on the intraocular lens(IOLs).Methods:To deposite titanium nitride thin film on the top of...Objective:To study the characteristics of the intraocular lens using ion beam sputtering depositing titanium nitride thin film on the intraocular lens(IOLs).Methods:To deposite titanium nitride thin film on the top of intraocular lens by ion beam sputtering depositing.We analyzed the surface morphology of intraocular lens through SEM and AFM.We detected intraocular lens resolution through the measurement of intraocular lens.Biocompatibility of intraocular lens is preliminary evaluated in this test.Results:The surface morphology of intraocular lens material was not changed,and was in line with the requirements of smoothness.Resolution was in line with national requirements.Unmodified and modified IOLs's cytotoxicity were 1 and 0.6 grade respectively.Hemolytic rates of modified and unmodified were both less than 5%.Conclusion:Ion beam sputtering deposition of objects didn't only affect the surface morphology and the basic optical performance,but also can enhance the biocompatibility of intraocular lens.Ion beam sputtering deposition technique has provided new methods for the surface modification of IOLs and PMMA materials.展开更多
基金This work was supported by National Natural Science Foundation of China （No.61474009 and No.11304020） and the Educational Commission of Liaoning Province of China （No.L2014448）.
文摘Synthesis of amorphous SiCO nanowires was carried out by means of direct current are discharge. Free-standing SiCO nanowires were deposited on the surface of a graphite crucible without any catalyst and template. The SiCO nanowires were analyzed by XRD, SEM, TEM, XPS, and FTIR. The SiCO nanowires were typically 20-100 gm in length and 10-100 nm in diameter as measured by SEM and TEM. The XPS and FTIR spectroscopy analysis confirmed that the Si atoms share bonds with O and C atoms in mixed SiCO units. The PL spectrum of the SiCO nanowires showed strong and stable white emissions at 454 and 540 nm. A plasma-assisted vapor-solid growth mechanism is proposed to be responsible for the formation of the SiCO nanowires.
文摘Objective:To study the characteristics of the intraocular lens using ion beam sputtering depositing titanium nitride thin film on the intraocular lens(IOLs).Methods:To deposite titanium nitride thin film on the top of intraocular lens by ion beam sputtering depositing.We analyzed the surface morphology of intraocular lens through SEM and AFM.We detected intraocular lens resolution through the measurement of intraocular lens.Biocompatibility of intraocular lens is preliminary evaluated in this test.Results:The surface morphology of intraocular lens material was not changed,and was in line with the requirements of smoothness.Resolution was in line with national requirements.Unmodified and modified IOLs's cytotoxicity were 1 and 0.6 grade respectively.Hemolytic rates of modified and unmodified were both less than 5%.Conclusion:Ion beam sputtering deposition of objects didn't only affect the surface morphology and the basic optical performance,but also can enhance the biocompatibility of intraocular lens.Ion beam sputtering deposition technique has provided new methods for the surface modification of IOLs and PMMA materials.
