ABSTRACT
We all aware of COVID-19 impact around the world which made us to be more cautious in our social life. In this situation, we need to adopt few precautionary measures such as washing hands regularly, sanitization and social distancing. In this regard, we need to upgrade our gadget which comes under physical contacts regularly with people as it can be high risk of transmission of virus. Here doorbell is one such an example which comes under gadget with multiple person contacts, so there should be an upgradation to avoid physical contact while using doorbell. This made us to develop a product called as touchless doorbell with sanitizer dispenser, which avoids physical contacts as well as provides sanitizing the hand. It consists of two IR transceivers, and microcontroller along with surrounding circuitry helps to control sanitizer and doorbell. © 2022, The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.
ABSTRACT
The entire world is now agog with the novel coronavirus disease-2019 (COVID-19) chaos, as it has caused unexpected devastation in almost every country. As the resurgence of the COVID-19 is most certain in the coming two years (most probably during the winter season), extremely stringent methods have to be practiced to lower its spreading. The appropriate measures to be followed by wearing a mask (both infected as well as healthy population), adopting social distancing methods, regular medical checkups, and lowering of the grim emissions of toxins from heavy industries around the world, and other effective methods. This study has presented databases of COVID-19 (as of 25 May 2020), which revealed that most of the western countries are showing decreasing trends after being attained the maximum peak of the ‘Gaussian shape’. In contrast, Asian countries (India, Indonesia, and Pakistan) show, alarmingly, increasing trends that imply great care has to be taken to fight against COVID-19. It is well known that nanomaterials have unique physical and chemical properties (ultra-small size, large surface-area-to-mass ratio, and high reactivity) that are different from bulk materials of the same composition. Therefore, this paper discusses the role of nanomaterials in identifying and offering protection against the virus. Also, it gives an insight into their use in the treatment to treat COVID infected patients. Furthermore, this paper also elaborated the challenges being faced while dealing with coronaviruses with a few feasible solutions to eradicate this untoward danger of the pandemic. A meaningful schematic on ‘flattening of the curve’ is included in this paper by considering several factors into account that may help to lessen or eradicate the present pandemic. © (2020) Society for Biomaterials & Artificial Organs #20042020