سنتز و مشخصه‌یابی پوشش ترکیبی اکسید آهن و شیشه زیست‌فعال، پوشش داده شده به روش الکتروفورتیک هم‌زمان برای کاربردهای پزشکی

نوع مقاله : مقاله پژوهشی

نویسندگان

1 دانشکده مهندسی مواد، دانشگاه صنعتی اصفهان، اصفهان 83111-84156، ایران

2 دانشکده علوم و فناوری زیستی، گروه زیست شناسی سلولی مولکولی و میکروبیولوژی، دانشگاه اصفهان، اصفهان 8174673441، ایران

چکیده

جلوگیری از عفونت و زیست‌فعالی قطعات کاشتنی در بدن یکی از مهم‌ترین مسائل مورد بررسی در پژوهش‌های پزشکی در سال‌های اخیر می‌باشد. در این راستا، محققین پژوهش‌های زیادی را به منظور افزایش زیست‌فعالی قطعات کاشتنی در بدن انجام داده‌اند. افزایش زیست‌فعالی این قطعات به روش‌های مختلفی انجامیده که پوشش‌دهی سطح قطعات یکی از بهترین روش‌های مورد بررسی در این زمینه می‌باشد. در این پژوهش، پوشش‌دهی هم‌زمان نانوذرات اکسیدآهن (مگنتیت) به همراه شیشه زیست‌فعال 45S5 ‌بر روی زیرلایه فولاد زنگ‌نزن 316 به روش الکتروفورتیک به جهت افزایش زیست فعالی و هم‌چنین قابلیت کاربرد‌های فراگرمایی انجام شد. آنالیز پراش اشعه ایکس، حضور نانوذارت اکسیدآهن را در کنار شیشه زیست‌فعال تأیید نمود. از میکروسکوپ الکترونی جهت بررسی سطح پوشش استفاده گردید. در بررسی‌های صورت گرفته با روش‌های زبری سطحی و زاویه ترشوندگی نشان داده شد که زبری سطح پوشش داده شده برابر با 1/2±49 میکرومتر و زاویه ترشوندگی این پوشش برابر با 49 درجه می‌باشد. این نتایج نشان داد که پوشش دارای سطحی با زبری متوسط و ویژگی‌های آب‌دوستی می‌باشد که برای زیست فعالی از اهمیت بالایی برخوردار است. در ادامه در بررسی خواص مغناطیسی پوشش، ارزیابی مغناطومتری روی نمونه‌های سنتز شده انجام شد که مغناطس اشباع پوشش برابر با emu/g 20/2 و مقدار پارامتر Hc برابر با 89 گاوس به‌دست آمد.

کلیدواژه‌ها

موضوعات


عنوان مقاله [English]

Synthesis and Characterization of Composite Coating of Iron Oxide and Bioactive Glass, Coated by Electrophoretic co-Deposition Method for Biomedical Applications

نویسندگان [English]

  • M. S. Abbasi 1
  • A. Bahrami 1
  • A.S. Hosseini-Abari 2
  • F. Yousef Saber 2
1 Department of Materials Engineering, Isfahan University of Technology, Isfahan 84156-83111, Iran
2 Department of Cell and Molecular Biology & Microbiology, Faculty of Biological Science & Technology, University of Isfahan, Isfahan 8174673441, Iran
چکیده [English]

Prevention of infection and bioactivity of implantable parts in the body is one of the most important issues investigated in medical research in recent years. In this regard, researchers have conducted many studies in order to increase the bioactivity of implantable parts in the body. Increasing the bioactivity of these parts has been done in different ways, while coating the surface of the parts is considered as one of the best methods in this field. In this research, simultaneous coating of iron oxide nanoparticles (magnetite) along with 45S5 bioactive glass on AISI 316 stainless steel substrate was deposited by electrophoretic method to increase the bioactivity and the possibility of hyperthermic applications. X-ray diffraction analysis confirmed the presence of both iron oxide nanoparticles and bioactive glass. Electron microscope was employed to study the coating surface. Conducting surface investigations by surface roughness and wetting angle measurements, it was shown that the roughness of the coated surface was 49.2±1 µm and the wetting angle of this coating was obtained to be 49°. The results declared that this coating had a surface with medium roughness and hydrophilic properties, which was of great importance for bioactivity performance. Investigating the magnetic properties of the coating, magnetometric evaluation was performed on the synthesized samples. The saturation magnetization and the Hc parameter values of the coating were obtained to be 20.2 emu/g and 89 Gauss, respectively.

کلیدواژه‌ها [English]

  • Coating
  • Bio-active
  • Magnetic particles
  • Iron oxide
  • Electrophoretic
  • Bioglass
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