Day :
- Nanotechnology | Nanomedicine and Nano Biotechnology | Nanotoxicology | Nanoparticles and Nanomaterials | Graphene and Fullerenes | Nano Pharmaceuticals | Targeted Drug Delivery Systems | 3D Characterization of Nanosystems | Nano Applications | Nano Electronic devices | Nanotechnology in Cancer Treatment | Applications of Nano materials | Nanotechnology in Tissue Engineering | Molecular Nanotechnology |Nanotechnology in Medicine and Drug Delivery
Location: Webinar
Session Introduction
Waqar Ahmed
Universiti Teknologi Malaysia
Title: Nanoparticles, nanosuspension, stability and their improved thermal properties
Time : 12:00-12:30
Biography:
Dr Waqar has done his Ph.D. degree in Materials Physics (Distinction + GOT Excellence award with 10 ISI papers + 1 Patent) from the University of Malaya world QS ranking 65. As a Ph.D. researcher at the Institute for advanced studies at the University of Malaya, he has led hi research activities to synthesize the metal oxides, graphene, carbon nanotubes, and their binary and ternary composite for energy-related varying applications like (Energy storage, sensors, energy transportation, Heat, and Mass Transfer, Heating, and cooling of Electrical and electronic systems, which helps in solidified his interest in the area of materials and nanofluids. These experiences have reinforced his keen interest in materials which inspired his goal for a career in synthesis and applications of nanomaterials. He was able to use his analytical skills to organize and assess the data for future academic and research activities. Also, he has completed his master’s degree in electrical engineering from COMSATS Institute of Information Technology, Wah Cantt, Pakistan. research activities at COMSATS were focused on the development of micro/Nanocomposite advanced materials for Outdoor High voltage Insulation. So far, he has published 53 high-impact peer-reviewed original research articles1 in highly reputable journals such as RSRE, Energy, Renewable energy, ICHMT, JTAC, LDIS, Energies, and Energy reports, etc. In most of his published work, he is the first/corresponding author
Abstract:
Since the last few ages, several studies have been conducted on nanofluids research containing metal oxides; Graphene, carbon-based, and their composites/hybrid are rapidly growing for energy improvements. Conventional fluids like water, DW, EG, PEG, Palm oil, Glycerin, and Transformer oil have limited thermal and heat transfer properties, so there is a need for some alternative heat exchanging liquids. The prime aim to write this comprehensive article is to synthesize nanoparticles, nanofluids preparation, and detailed applications in different aspects with enhanced thermophysical properties. Different nanoparticles were synthesized using varying synthesis techniques likes (Sonochemical, Precipitation, Sol-Gel, Hydrothermal, and green functionalization, and then a 2-step method was used to prepare nanofluids. Nanofluids proved their enhanced heat transfer properties as compared to conventional fluids, including their enhanced thermal and rheological characteristics. The improvement in thermophysical and thermal properties of Metal oxides, Ceramics, Graphene oxide, and Carbon nanotubes based on single and hybrid nanofluids was reported here. The 0.025%, 0.05%, 0.075%, 0.1%, 1%, 2% and 3% weight concentrations of the solid nanoparticles dispersed in base fluids showed improved thermophysical and heat transfer properties. A significant improvement in thermal conductivity was found at 49%, 43.7%, 41%, 37.2%, 27%, and 17% at higher wt.% concentrations for the metal oxide-based nanofluids. Similarly, the higher heat transfer improvement was reported up to 89%, 82% and 72%, 69%, and 57% at higher wt.% concentration for Graphene and CNTs-based nanofluids. This review also covers the stability and dispersion to see the longer suspension of the particles in the base fluid, the graphene oxide, and CNTs-based nanofluids exhibit longer suspension up to 10 weeks after the preparation.
Abdelsalam Abuzreda
University of Benghazi, Libya.
Title: Toxicity of iron oxide nanoparticles, on antioxidant enzymes and free radicals in male rats
Time : 12:30- 13:00
Biography:
Ph.D. in Nanotoxicity on Molecular and Physiological Characteristics, Assistant Professor & Postdoctoral Research fellow, Department of Health Safety and Environmental (HSE), Arabian Gulf Oil Company (AGOCO), Benghazi, Libya
Abstract:
The present study Wistar male rats were used. Rats were divided into 2 equal groups, 10 rats each. Group 1 served as control, group 2 was administered orally with Fe2O3NPs .Animals were treated with the doses every day for 90 days. Results showed significant (P < 0.05) decrease in the antioxidant enzymes (GPX, GST, CAT and SOD) and reduced glutathione (GSH) and total antioxidant capacity (TAC), while significant (P < 0.05) increase in thiobarbituric acid-reactive substances (TBARS) and nitric oxide (NO) in plasma and testes of rats treated with Fe2O3NPs, compared to control group.
Shirin Shojaei
Kermanshah University of Medical Sciences, Iran
Title: Feasibility of nanofiber-based systems for skin cancers treatment
Time : 13:20-13:50
Biography:
Shirin Shojaei is a researcher with 3+ years of experience contributing to scientific discoveries in the fields of nanomedicine and nanotechnology.After her graduation from secondary school, she attended a medical university. At the end of her education, she graduated with a degree in Nuclear Medicine Technologist. Since then, she has been working as a nuclear medicine expert and, of course, researcher in the nuclear medicine department at Kermanshah University of medical science. After that, she has found nanomedicine as a wonderful field in which to do research since she started studying for a master's degree in this field at Tehran University of Medical Science.Currently, she is working with very strong research groups in the fields of cancer diagnosis and treatment with nanomedicine technology, targeted drug delivery, and increasing the bioavailability of drugs, and the field of her thesis is the treatment of skin cancer with nanofibers.
Abstract:
The incidence of skin cancer (SC) has dramatically risen over the last decades. Conventional therapeutic measures possess numerous drawbacks; hence, developing effective therapies is indispensable. Modern delivery systems, e.g., nanofiber-based systems, can deliver therapeutic agents and nanostructures, which could be the harbinger of a new era to obviate SC complications. Nanofibers (NFs) can be fabricated by natural and synthetic or both materials with a versatile technique, electrospinning (ES). Such structures offer a great number of advantages because of their unique properties so that a delivery system or reservoirs can provide an adequate matrix for encapsulation and incorporation of therapeutic agents such as chemical components and natural substances as well as able to prevent the harmful impact of radiation exposure. In addition, therapeutic nanostructures, e.g., metal and magnetic nanoparticles (NPs), have been incorporated into NFs to achieve multimodal treatments like photo-thermal therapy and hyperthermia. Thus, in this study, the various mentioned nanofibrous-based strategies and their effectiveness in treating SCs have been discussed.
Abdelsalam Abuzreda
University of Benghazi, Libya.
Title: The use of green nano hydrogen as fuel and its effect
Time : 13:50-14:20
Biography:
Ph.D. in Nanotoxicity on Molecular and Physiological Characteristics, Assistant Professor and Postdoctoral Research fellow, Department of Health Safety and Environmental (HSE), Arabian Gulf Oil Company (AGOCO), Benghazi, Libya.
Abstract:
Renewable energy is now considered a more desirable source of fuel compared to nuclear power due to the absence of safety risk and disasters. Considering that the major component of greenhouse gases is carbon dioxide, there is a global concern about reducing carbon emissions to minimize the problem of climate change. In this regard, different policies could be applied to reducing carbon emissions, such as enhancing renewable energy deployment and encouraging technological innovations. Two possible solutions may be implemented to reduce carbon dioxide (CO2) emissions and hence to overcome the problem of climate change: replacing fossil fuels with renewable energy sources as much as possible and enhancing energy efficiency. In this paper, we discuss alternative technologies for enhancing renewable energy deployment and energy use efficiency keeping into consideration of climate conditions in Libya, Green Nano hydrogen is a universal, light and highly reactive fuel, through a chemical process known as electrolysis. This method uses an electric current to separate hydrogen from oxygen in water, If this electricity is obtained from renewable sources, we will produce energy without emitting carbon dioxide into the atmosphere. Hydrogen is the most abundant element in the universe, but on Earth it does not appear pure in nature, and requires energy to separate. The most common method is to extract hydrogen from water, which is made up of two parts hydrogen and one part oxygen (hence H2O). Doing so is fairly simple. You can use heat and chemical reactions to release hydrogen from organic matter such as fossil fuels. However, this is considered very polluting.