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haki-zahi-margouk--mohamamd
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Fabrication and Enhancement of an Antibacterial Chitosancoated Allantoin-Loaded Skin Wound Dressing for Clinic Use
, M.Sc. Thesis Sharif University of Technology ; Shamloo, Amir (Supervisor) ; Akbari, Javad (Supervisor)
Abstract
Skin as the largest organ of the body is constructed of three distinctive layers referred to as epidermis, dermis, and hypodermis. Epidermis is the outermost layer of the skin and acts as body’s first barrier against infectious agents and contains mostly sweat glands. Dermis is the mid-layer of the skin which makes up to 70% of the skin and plays a significant role in maintaining body’s metabolism and is home to a huge part of skin’s vascular network, nerve cells and hair follicles. Hypodermis on other hand, is the deepest layer of the skin and mainly acts as a bonding layer between upper skin layers and the soft tissue underneath. Although skin is proved to have a profound ability to...
Adsorptive performance of MWCNTs for simultaneous cationic and anionic dyes removal; kinetics, thermodynamics, and isotherm study
, Article Turkish Journal of Chemistry ; Volume 45, Issue 4 , 2021 , Pages 1189-1200 ; 13000527 (ISSN) ; Yousaf, I ; Akhtar, A ; Zahi, A ; Sharif University of Technology
TUBITAK
2021
Abstract
Disposal of contaminated wastewater causes many serious problems especially when it gets mixed with the ground and seawater. It is, therefore, important to apply any remedial action to eradicate dangerous pollutants from the aqueous effluents and to avoid exposure of this wastewater to aquatic life. The research results discussed herein deal with the removal of Rhodamine B (RhB) and Congo Red (CR) dye from wastewater by using multi-walled carbon nanotubes (MWCNTs) as an adsorbent. Different factors like solid dosage, initial pH and concentration, time, and temperature were studied to understand the behavior and mechanism of adsorption. The maximum adsorption capacity in case of a single...
Novel size-based design of spiral microfluidic devices with elliptic configurations and trapezoidal cross-section for ultra-fast isolation of circulating tumor cells
, Article Talanta ; Volume 254 , 2023 ; 00399140 (ISSN) ; Maleki, S ; Rezaeian, M ; Haki, M ; Shamloo, A ; Sharif University of Technology
Elsevier B.V
2023
Abstract
Investigation and analysis of circulating tumor cells (CTCs) have been valuable resources for detecting and diagnosing cancer in its early stages. Recently, enumeration and separation of CTCs via microfluidic devices have attracted significant attention due to their low cost and easy setup. In this study, novel microfluidic devices based on size-dependent cell-sorting with a trapezoidal cross-section and elliptic spiral configurations were proposed to reach label-free, ultra-fast CTCs enrichment. Firstly, the possibility and quality of separation in the devices were evaluated via a numerical simulation. Subsequently, these devices were fabricated to investigate the effects of the altering...
Free Vibration Analysis of Moderately Thick Rectangular Plate Made of Functionally Graded Material on Arbitrary Supports Using Extended Kantorovich Method
, M.Sc. Thesis Sharif University of Technology ; Kargarnovin, Mohammad Hossein (Supervisor) ; Mohammadi Aghdam, Mohamamd (Supervisor)
Abstract
In this study, free vibration analysis of moderately thick rectangular FG plates with general boundary conditions is investigated. Governing equations of motion are obtained based on the Mindlin plate theory. A semi analytical solution is presented for the governing equations using extended Kantorovich method (EKM). Results are compared and validated with available results in the literature. Effects of different parameters such as boundary conditions, material and geometrical parameters on natural frequencies of the FG plates are investigated