The aqueous and ethanolic extract of Passiflora edulis and Vicia faba L. (Fabaceae) exhibited antimicrobial activity against the pathogenic microorganisms: E. coli, S. aureus, K. pneumoniae and C. albicans. This was evaluated using the Disc Diffusion Assay under asceptic conditions. Antimicrobial activity wasn’t induced by the solvent, ethanol nor water. The highest AZOI was 153.9 mm2 and the lowest 12.56 mm2. Negligible Zone of Inhibition, ZOI were observed in several instances. The aqueous extract of the fruit also induced negligible Zone of Inhibition, ZOI. In comparison to the reference, Ampicillin and Nystatin, these values are less. As the concentration of the metal salt, Zn(OAc)2.2H2O and ethanolic extract increases, there seem to be a variation in antimicrobial activity. Zn(OAc)2.2H2O appears to intensify the antimicrobial activity of the plant ethanolic and aqueous extract. Zn (OAc)2.2H2O in the absence of any extracts exhibited antimicrobial activity. The AZOI range from 47.2 mm2 to 117.8 mm2. Antimicrobial selectivity was also observed in several instances.

Nonotechanology has been a rapidly growing field of advanced science at the inception of this century. Many problematic endeavours in sciences have been successfully overcome using nanoparticles. For example, a low risk solution using antibody modified bismuth nanoparticle, in combination with an X-ray dose equivalent to a chest X-ray specifically, has been shown to kill the common bacterium Pseudomonas aeruginosa in a set up designed to resemble a deep wound in human tissue. Nanosized gold particle could catalyse the oxidation of carbon monoxide better than anything previously known. Heparin functionalized nanoparticles have been use for targeted delivery of anti-malarial drugs. Heparin is abundant and cheap compared to treatments that involve antibodies, an important consideration, since malaria is most common in developing countries. A bone repairing nano-particle paste has been developed that promises faster repair of fractures and breakages. DNA containing two growth genes is encapsulated inside synthetic calcium phosphate nanoparticles. In a remarkable demonstration of the extreme limits of nanoscale engineering, researchers have used the tip of a scanning tunnelling microscope to cleave and form selected chemical bonds in a complex molecule. Many medicinal and industrial endeavours have seen the use of Nanotechnology. These and other more recent advances in nanotechnology will be presented at this conference

Nanotechnology has indeed fulfill many roles in many fields in contemporary science, such as electronic and IT applications, medical and health care applications, including COVID-19, Energy applications, environmental remediation, nanocomposites, herbal nano-particles. Research in this field needs to further proliferate, because of the novel properties of nano-based materials. Nanotechnology, will continue to solve many technologically driven process in contemporary science. It remains the vision of contemporary nanotechnologist to proliferate this research to other dimensions such as finding a cure for COVID-19. Nanotechnology/nanoparticles is the way forward to neutralize and eradicate SARS-COV-2 virus. Nanoparticles are of the same dimension as the SARS-COV-2 virus and thus this will promote effective interaction with the virus. Research in this area is continually increasing. In addition, a relatively large number of nanomolecules can be in effective contact with the virus of nanodimensions. Of greater significance, the use of plant extracts in synthesis of plant based nanoparticles to eradicate the viruses because of their easier synthesis, environmentally friendly nature and superior nature, as selective plants possess antiviral activities on their own.

Nanotechnology, a relatively new area of study and research, is the "design, characterization, production and application of structures, devices and systems, by controlling shape and size at the nanometer scale [1]. The particle matter usually ranges from 1 to 100nm in size.A nanometer (nm) is a billionth of a meter, 10 -9 . Within this range, materials may have properties considerably different from those expected when they have larger dimensions. Nanoscience depends on the fundamental properties of nano size objects [2,3]. Nanomaterials can show atom-like behaviors, which result from higher surface energy, due to their large surface area. This is in contrast to bulk material which has constant physical properties, regardless of its size. At the nanoscale, this is not often the case [4].Novel applications of nanoparticles and nanomaterials are expanding rapidly in many frontiers, due to their completely new or enhanced properties, depending on size, their distribution and morphology. Nanotechnology has found applications in many realms. These include health care, medicinal applications such as antibacterial, antiviral, antifungal, anti-inflammatory activities, cosmetics, biomedical, food and feed, drug-gene delivery, environment,

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