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Stem cells are undifferentiated, immature, and unspecialized cells having huge potential for differentiation and proliferation into the specialized functionalized cells. More recently, CSC has been described in breast cancer and brain tumors where they make up as few as 1% of the cells in a tumor. The features of cancer stem cells are just like normal stem cells but their replication rate many times faster than normal cells. Regenerative medicines are based on stem cells, are potentially useful to regenerate damaged cells, tissues, organs and replace cancer cells with normal cells. Induced pluripotent stem cells are the most important candidates for regenerative medicines, tissue engineering, cell reprogramming, and 3D printing. Cancer Stem Cells (CSCs) have a tumorinitiating capacity and play crucial roles in tumor metastasis, relapse and chemo/ radioresistance. Because CSCs are resistant to chemotherapeutic drugs and cause recurrence of cancer and also have the ability to be regenerated; they can cause serious problems in the treatment of various cancers. Numerous biocompatible biomaterials, miRNAs, nanomaterial, artificial intelligence, and machine learning are uses to reprograms stem cells into regenerative medicines for the treatment of cancer. The present paper describes the applications and importance of stem cells in regenerative medicines, cancer stem cells targeting therapies, and the role of miRNAs in cancer stem cells targeting.

The electrical characterization of organic diode with a configuration ITO/poly [2-methoxy-5-(2-ethyl)hexoxy-1,4-phenylenevinylene]:[6,6]-phenyl C-61-butyric acid methyl ester blend was analyzed by current-voltage and capacitance-voltage methods. The junction parameters of the diode were calculated from the current-voltage and capacitance-voltage data and are discussed. The ideality factor n and barrier height phi(b) values of the diode were found to be 3.06 and 0.96 eV, respectively. The diode shows a non-ideal current-voltage behavior due to a high probability of electrons and holes recombining in the depletion region or series resistance and by the presence of an interfacial layer.

The photovoltaic and electronic properties of p-Si/poly[2-methoxy,5-(2-ethyl-hexyloxy)-1,4-phenylenevinylene] (MEH-PPV):[6, 6]-phenyl C-61-butyric acid methyl ester (PCBM) organic-inorganic device have been investigated. The current-voltage characteristic of p-Si/PCBM:MEH-PPV photodiode includes series resistance effect and the diode indicates a non-ideal behavior. The photovoltaic effect in p-Si/PCBM:MEH-PPV photodiode is based on the formation of excitons and subsequent dissociation and charge collection at the electrodes. It is evaluated that p-Si/PCBM:MEH-PPV device is a photodiode with V-oc of 84 mV and I-sc of 3.47 nA electronic parameters.