Owing to their exceptional electrical and mechanical properties, low weights and availability of their synthesis and purification carbon nanotubes (CNTs) became the focus of scientists in many medical and electronic applications, and reinforcement of various materials. A close understanding of structure-properties of (CNTs) will be necessary for the development of carbon-nanotube applications. High stiffness and tensile strength of CNTs provide mechanical stability for electric nano-circuits formed by CNTs. Meanwhile, at earlier time of their application, researchers main concern was dedicated for preparation methods of CNTs. Eventually the structural and physical characteristics of CNTs became more attractive for scientist proper applications. Herein the current work introduce a practical approach for screening the dielectric and mechanical properties of local commercial purchased single walled carbon nanotubes for medical applications. Dielectric properties of CNTS were expressed in term of electrical relative permittivity, and electrical conductivity. The dielectric relaxation obeys ordinary alpha and beta relaxation of dielectrics at current frequency range. Besides the mechanical properties in term of dimetral tensile and compression strength that are expressed by Young's modulus that is closer to graphite. As a results, we highly recommend these commercial (SWCNTs) from our local suppliers for further medical applications.
U LTRASOUND is relatively available, simple, and energy saving sound wave. Hence it became anemerging technology for many biomedical applications. Low energy (low power, low intensity (>100kHz, 1 W/cm 2 ) ultrasoundisusedformonitoringthecompositionand physicochemical properties.On the other hand, High energy(high power, high-intensity,≤ 500 kHz ) ultrasound may induce mechanical, physical, and chemical/biochemical changes through cavitation that is potentially compromising cell viability.The goal of this work to investigate the potential effect of using therapeutic ultrasound on the membrane viability and integrality of biological cell sample. Red blood cells (RBCs) were our choice to examine the cell viability under the therapeutic intensity range of 0.5 -3 W/cm 2 . Trypan blue dye exclusion test was to determine the integrity of the cellular membrane. Cell membrane osmotic fragility of (RBCs) was measured under series of saline solution osmotic pressure. The electrical signature of (RBCs) was correlated before and after ultrasound irradiation. The results showed no significant alteration in (RBCs) integrity and electrical behavior under the US irradiation intensity range. As a result, using the therapeutic US of intensity range of 0.5 -3 W/cm 2 , showed no significant harmful effect on RBCS integrity and viability under current experimental conditions.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
hi@scite.ai
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.