The aim of this paper is to evaluate the significance of applying blockchain in the finance industry as a way of improving the issue of transactions. I write it in terms of introducing the concept of blockchain and majoring on the decentralized layout, the immutability of records and the contracting ability as enabled by smart contracts. Thus, this article is centered on how blockchain technologies have affected currencies and other forms of digital assets and decentralized finances. The activities involved in data collection and system construction and integration of blockchain financial systems are outlined. From the findings of the study, the following benefits of the implementation of blockchain came out clearly; security on data, upraised v Transparency level, and optimization of financial processes. However, acknowledging the aforementioned limitations including scalability and the issues of regulations, this paper unfolds future trends including the Central Bank Digital Currency and the Quantum Resistant Ledger.
Salma Bizid, R. Mlika, A. Haj Saïd, Mejed Chemli · 5 authors
Abstract MWCNTs have been dispersed with modified ferrocene‐poly(para‐phenylene) by π staking interaction to improve dispersion of MWCNTS in organic solution. Such interaction has been demonstrated through electrochemical and chemical characterization of the composite. A layer based on the formed composite (MWCNTs/Fc‐PPP) has been deposited on a gold surface and the electrochemical properties of the redox reaction have been studied through Cyclic Voltammetry (CV) and Electrochemical Impedance Spectroscopy (EIS). We demonstrate that such association of the Fc‐PPP to MWCNTs allows their functionalization and introduction of redox markers which could be used as a platform for a sensing application. The proof of the concept has been demonstrated through DNA immobilization and detection of specific oligonucleotide probe of hepatitis C. The properties of the DNA biosensor construction were followed by redox properties of immobilized redox markers. The nanocomposite (MWCNTs/Fc‐PPP) modified by DNA probes demonstrates a sensitivity to DNA hybridization with a detection limit of 1.6 pM and a wide linear range of detection from 1 fM to 100 pM taking advantage from the large surface of MWCNTs and their electronic properties.