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gholamali-sinaki--mahbod
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Position Control of Magnetic Catheter with External Permanent Magnet
, M.Sc. Thesis Sharif University of Technology ; Selk Ghafari, Ali (Supervisor) ; Nejat Pishkenari, Hossein (Supervisor)
Abstract
The precise positioning of magnetic catheters is critical for a range of medical procedures, ensuring efficacy while minimizing potential complications. This research delves into the position control of a magnetic catheter influenced by an external permanent magnet. Due to the intricate and complex equations describing the plant's behavior, a neural network approach was deemed suitable for modeling. Using a 5 degree of freedom manipulator carrying an external permanent magnet, data was gathered from real-world positionings, tracking the coordination of the magnetic catheter's end. These data points served to train the neural network, subsequently allowing for an effective simulation of the...
Intelligent position control of magnetically actuated catheter equipped with external permanent magnet
, Article 11th RSI International Conference on Robotics and Mechatronics, ICRoM 2023 ; 2023 , Pages 84-90 ; 979-835030810-5 (ISBN) ; Pishkenari, H. N ; Ghafari, A. S ; Sharif University of Technology
Institute of Electrical and Electronics Engineers Inc
2023
Abstract
The precise manipulation of the magnetic catheters is of great importance for different applications, ensuring efficacy while minimizing potential complications. This research delves into the position control of a magnetically actuated catheter guided with an external permanent magnet. Due to the complexity of governing equations describing the system's behavior, a neural network approach was deemed suitable for modeling. Using a five degrees of freedom manipulator carrying an external permanent magnet as a payload, data was gathered from real-world positionings, tracking the coordination of the magnetic catheter's end point. These data points served to train the neural network, subsequently...
Design of experiment, preparation, and in vitro biological assessment of human amniotic membrane extract loaded nanoparticles
, Article Current Pharmaceutical Biotechnology ; Volume 21, Issue 3 , 2020 , Pages 256-267 ; Atyabi, F ; Khoshayand, M. R ; Mahbod, R ; Cohan, R. A ; Akbarzadeh, I ; Bakhshandeh, H ; Sharif University of Technology
Bentham Science Publishers
2020
Abstract
Background: Human amniotic membrane grafting could be potentially useful in ocular surface complications due to tissue similarity and the presence of factors that reduce inflammation, vascu-larization, and scarring. However, considerations like donor-derived infectious risk and the requirement of an invasive surgery limit the clinical application of such treatments. Moreover, the quick depletion of bioactive factors after grafting reduces the efficacy of treatments. Therefore, in the current study, the possibility of nano delivery of the bioactive factors extracted from the human amniotic membrane to the ocular surface was investigated. Materials and Methods: Nanoparticles were prepared...