Srilekha Jayakumar

Abstract

AFM has evolved into one of the most used imaging tool in the fields of physics, biology and material science. AFM is based on mapping of an atomic-force field on a surface of materials with nondestructive probes. It provides a detailed topographical investigations and three-dimensional image of an object surface. One of the main advantages of the AFM method is the flexibility of the conditions in which it is used. AFM imaging can be conducted in an ambient or liquid environment with minimal compromise to its resolution.   Keywords: Atomic force microscopy, Biofilm, Non carious lesion, Surface topography

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Abstract

A serious threat to world now is the emergence of COVID-19 (Corona Virus Diseases-2019). When compared to its precursor virus, SARS (Severe acute respiratory syndrome – now called as SARS-CoV-1) and MERS (Middle East respiratory syndrome), this virus spreads more rapidly. The emergence of this virus happened in december 2019 in Wuhan. World Health Organisation announced this virus outbreak as a pandemic on March 202020. The current threat to the world is the emergence of second wave of COVID -19 that has shaken many countries in world and its peak in India was in the month of may 2021 which had drastically affected the country. Hence this review gives a comprehensive update on corona virus and its newer oral symptoms and about treatment approaches and vaccines currently available in India. Keywords: Corona virus, Covid Tongue, Dyguesia, Vaccines

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