Banerjee Sreerup, Raghunathan Shriram, Banerjee Saubhik, Bandyopadhyay Boudhayan
Department of Mechanical Engineering, Haldia Institute of Technology, Haldia, West Bengal India.
School of Computer Science and Engineering, VIT Bhopal University, Kothri Kalan, Madhya Pradesh India.
Bull Natl Res Cent. 2021;45(1):35. doi: 10.1186/s42269-021-00496-z. Epub 2021 Feb 4.
Infectious diseases, such as the latest COVID pandemic, caused by microorganisms like bacteria and virus, wreak havoc shaking human civilization with its rapid infection rate, and high number of mortalities. In case of a contagious disease, the virus can survive on any surface over a period of time and can be transferred to the human host through touching those surfaces unknowingly. Cleaning those possible surfaces to which these microorganisms can cling onto is one of the major ways to curb the spread. The aim of this study was to design a sterilizer which can clean such surfaces of daily used items easily within a certain period of time and can assess the cleaning efficacy by estimating the presence of microbes before and after sanitization.
To achieve this goal, we propose a portable sterilization unit that contains a sterilization chamber fitted with a microbe content detector. The sterilization chamber will cleanse the surfaces off the microbes using ultraviolet radiation. The chamber can be portable and at the same time big enough to accommodate items of daily use, like watch, wallet, clothes, utensils to even foods for single-house application. The microbe content detector will detect the success of the sterilization procedure by examining the time-lapse laser speckle images captured by a high-speed camera by mean of image processing algorithm, such that the user can determine whether further sterilization is required.
Microbe content detection device associated with the conventional sterilization procedure will give an assessment of the effectiveness of the sterilization. Successful implementation of sterilization for a wide variety of items of everyday use aided with microbe content detection technique is first of its kind and should be an effective tool for use in large communities, offices and public places for effective sterilization to help fight against the spread of infectious diseases.
传染病，如由细菌和病毒等微生物引起的最新新冠疫情，以其快速的感染率和高死亡率给人类文明带来了巨大破坏。在传染病爆发时，病毒可以在任何表面存活一段时间，并可能通过不经意间触摸这些表面而传播给人类宿主。清洁这些微生物可能附着的表面是遏制传播的主要方法之一。本研究的目的是设计一种消毒器，它能够在一定时间内轻松清洁日常用品的此类表面，并通过评估消毒前后微生物的存在情况来评估清洁效果。
为实现这一目标，我们提出了一种便携式消毒装置，该装置包含一个配备微生物含量检测器的消毒腔。消毒腔将使用紫外线辐射清除表面的微生物。该腔可以是便携式的，同时又足够大，能够容纳日常用品，如手表、钱包、衣服、餐具甚至食品，适用于家庭单人使用。微生物含量检测器将通过图像处理算法检查高速摄像机拍摄的延时激光散斑图像，以检测消毒过程是否成功，从而让用户能够确定是否需要进一步消毒。
与传统消毒程序相关联的微生物含量检测装置将对消毒效果进行评估。借助微生物含量检测技术成功实现对各种日常用品的消毒尚属首次，并且应该成为在大型社区、办公室和公共场所进行有效消毒以帮助对抗传染病传播的有效工具。
