Search

Background: Hemodialysis is a process of removing waste and excess fluid from blood when kidneys cannot function efficiently. It often involves diverting blood to the filter of the dialysis machin to be cleared of toxic substances. Fouling of pores in dialysis membrane caused by adhesion of plasma protein and other toxins will reduce the efficacy of the filtre. Objective: In This study, the influence of pulsed ultrasound waves on diffusion and the prevention of fouling in the filter membrane were investigated. Material and Methods: Pulsed ultrasound waves with frequency of 1 MHz at an intensity of 1 W/cm2 was applied to the high flux (PES 130) filter. Blood and blood equivalent solutions were passed through the filter in separate experimental setups. The amount of Creatinine, Urea and Inulin cleared from both blood equvalent solution and human whole blood passed through High Flux (PES 130) filter were measured in the presence and absence of ultrasound irradiation. Samples were taken from the outlet of the dialyzer every five minutes and the clearance of each constituent was calculated. Results: Statistical analysis of the blood equvalent solution and whole blood indicated the clearance of Urea and Inulin in the presence of ultrasound increased (p

The purpose of this study was the utilization of different methods of tissue culture in proliferation of epithelial cells and autologous graft to cover surface areas without skin specifically, which is due to thermal burns more than 50%. In this experience we performed from rabbits and success to cover almost 24 times original donor site with autograft.

In this study, three titanium dioxide (TiO2) samples were prepared on FTO substrate through the process of spray pyrolysis at 280 °C and the influence of TiCl4 treatment on their electrochemical properties was studied. The synthesized films were studied to understand their structure, surface morphologies, optical, and electrochemical characteristics through the use of X-ray diffractometry, atomic force microscopy, Raman spectroscopy, Ultraviolet–Visible spectrophotometry, Photoluminescence, and electrochemical techniques. The anatase phase was revealed from the XRD and Raman spectra with the most prominent peak observed at the (004) plane. Porous films with an average surface roughness of 36.95 nm were obtained from the morphology study. Optical studies recorded increased transmittance values with band gap energy that ranged from 2.71 to 2.76 eV. Increased carrier mobility with improved charge storage feature was also observed from the plots. The synthesized films find potential application in solar cells and supercapacitors. [ABSTRACT FROM AUTHOR]

Aim: To determine the relation between alterations in the retinal topography and thickness, visual acuity, and retinal pigment epithelium hypopigmentation in atrophic age related macular degeneration (AMD). Methods: 22 patients, [...]

In this work, MoO3 films have been prepared using DC magnetron sputtering deposition technique in different growth conditions. And also the structural and optical properties of the films prepared in different conditions, has been systematically investigated. The results showed the relation between morphology, composition, and growth conditions. By increasing the ratio of O/Mo in the MoOx composition, not only the bandgap and the transmittance increase but also the size of the crystals decreases. In addition, it was found that by increasing the ratio of oxygen to argon and the DC power during deposition process, the phonon lifetime increases and consequently the crystallinity of the films will improve. This is consistent with the results of the structural study. [ABSTRACT FROM AUTHOR]

Byline: A. Ghasemi, T. Pourfallah, M. Akbari, H. Babapour, M. Shahidi Fast and thermal neutron fluence rates from a 15 MV X-ray beams of a Siemens Primus Linac were measured [...]

In the following research, we specifically assessed the feasibility of a novel AS-1411-chitosan (CS)-gold nanoparticle (AuNPs) delivery system to carry methotrexate (MTX) into the cancer cells. The designed system had a spherical shape with average size of 62 ± 2.4 nm, the zeta potential of −32.1 ± 1.4 mV, and released MTX in a controlled pH- and time-dependent manner. CS-AuNPs could successfully penetrate the breast cancer cells and release the therapeutic drug, and ultimately, be accumulated by the nucleolin-AS1411 targeting mechanism within the in vivo environment. The anticancer activity of MTX was attributed to the induction of mitochondria membrane potential loss and nuclear fragmentation, which leads to apoptotic death. Moreover, the cellular internalization confirmed the high potential in the elimination of cancer cells without notable cytotoxicity on non-target cells. Therefore, it was concluded that the AS1411-CS-AuNPs with considerable in vitro and in vivo results could be utilized as a favorable system for breast cancer treatment.