Search results for " Cell"
showing 10 items of 14074 documents
Fabrication and characterization of Donor/Acceptor heterojunction organic solar cells
2018
Results of initial development of organic solar cells having the Donor/Acceptor heterojunction structure with and without an exciton blocking layer are reported. Characterization is carried out in AM1.0 condition with 100 mW/cm2 incident optical power density. The best device has the exciton blocking layer and exhibits an open circuit voltage VOC = 0.43 V, a short circuit current density JSC = 2.35 mA/cm2 with a fill factor FF ≈ 50%, an external quantum efficiency (electrons/s over incident photons/s) EQE ≈ 5% and a power conversion efficiency of about 0.5%.
Proton Exchange Membrane Fuel Cells (PEMFCs): Advances and Challenges
2021
The study of the electrochemical catalyst conversion of renewable electricity and carbon oxides into chemical fuels attracts a great deal of attention by different researchers. The main role of this process is in mitigating the worldwide energy crisis through a closed technological carbon cycle, where chemical fuels, such as hydrogen, are stored and reconverted to electricity via electrochemical reaction processes in fuel cells. The scientific community focuses its efforts on the development of high-performance polymeric membranes together with nanomaterials with high catalytic activity and stability in order to reduce the platinum group metal applied as a cathode to build stacks of proton …
Potential use of organotin(IV)-tripetide complexes as stopper in tumor cells growth.
2008
Adipogenic and osteogenic differentiation of mesenchymal stem cells.
2009
PROLONGED TREATMENT OF HUMAN OSTEOSARCOMA MG63 CELLS WITH 3AB INDUCES THE PRODUCTION OF TUMOR INITIATING CELLS.
2008
3AB-OS, a human osteosarcoma stem-like cell line, potential model for studying cancer
2012
In human osteosarcoma 3AB-OS cancer stem cells let-7d seems to have the dual function of oncogene/tumor-suppressor miRNA
2015
Introduction: Osteosarcoma (OS), an aggressive tumor a!ecting adolescents, shows therapy resistance and recurrence which can depend on cancer stem cells (CSCs), the source for tissue renewal and hold malignant potential; thus, OS treatment requires their eradication. Here, using 3AB-OS CSCs previously obtained from the OS-MG63 cells, we focused on the role of let-7d in managing stemness properties of 3AB-OS CSCs. Methods: 3AB-OS CSCs were stably transfected with pCDomH-plasmid, containing mir-let7-d, or empty vector as a control. Cell proliferation and viability were evaluated by EdU and Trypan blue assays, respectively. Sarcosphere and colony assays and wound healing and transwell invasion…
Rescue of ovarian function: stem cells and regenerative factors
2022
El envejecimiento y otras condiciones de daño adquiridas, como los tratamientos oncológicos, conducen a un deterioro de la función ovárica. Sin embargo, incluso cuando los ovarios dañados pierden su capacidad de ovular, permanece un conjunto residual de folículos quiescentes que podrían ser rescatados y desarrollados en un nicho ovárico adecuado, dando lugar a ovocitos maduros. Los factores solubles secretados por las células madre podrían proporcionar un entorno ovárico adecuado para mantener y promover el crecimiento folicular. Por lo tanto, la presente tesis doctoral tuvo como objetivo evaluar los efectos regenerativos de diferentes fuentes de factores secretados por células madre en mod…