ABSTRACT
COVID-19, a viral respiratory illness, is caused by Severe Acute Respiratory Syndrome Corona Virus 2 (SARS-CoV-2), which was first identified in Wuhan, China, in 2019 and rapidly spread worldwide. Testing and isolation were essential to control the virus's transmission due to the severity of the disease. In this context, there is a global interest in the feasibility of employing nano-biosensors, especially those using graphene as a key material, for the real-time detection of the virus. The exceptional properties of graphene and the outstanding performance of nano-biosensors in identifying various viruses prompted a feasibility check on this technology. This paper focuses on the recent advances in using graphene-based electrochemical biosensors for sensing the SARS-CoV-2 virus. Specifically, it reviews various types of electrochemical biosensors, including amperometric, potentiometric, and impedimetric biosensors, and discusses the current challenges associated with biosensors for SARS-CoV-2 detection. The conclusion of this review discusses future directions in the field of electrochemical biosensors for SARS-CoV-2 detection, underscoring the importance of continued research and development in this domain.
ABSTRACT
Viruses and other microorganisms can enter water sources from different routes and cause pollution and irreparable damage. So, cost-effective and efficient systems for providing safe water are necessary. Efficient filtration systems based on antimicrobial materials have received a lot of attention in this regard. A wide range of materials play an important role in the production of efficient water filtration systems. Metal and metal oxide particles with anti-viral and antimicrobial properties comprising Cu, Cu2O, Ag, TiO2, and ZnO play a valuable role in the preparation of water filtration systems. Biopolymers such as cellulose or carbon nanomaterials like graphene or its derivatives have been reported to provide safe water. In this review, we summarize the use of diverse materials in the preparation of efficient filtration-based systems like membranes and paper filters for water treatment. Pathogen-containing water samples were effectively disinfected using the prepared water disinfection systems.Copyright © 2023 The Royal Society of Chemistry.
ABSTRACT
Recent years have been associated with the development of various sensor-based technologies in response to the undeniable need for the rapid and precise analysis of an immense variety of pharmaceuticals. In this regard, special attention has been paid to the design and fabrication of sensing platforms based on electrochemical detection methods as they can offer many advantages, such as portability, ease of use, relatively cheap instruments, and fast response times. Carbon paste electrodes (CPEs) are among the most promising conductive electrodes due to their beneficial properties, including ease of electrode modification, facile surface renewability, low background currents, and the ability to modify with different analytes. However, their widespread use is affected by the lack of sufficient selectivity of CPEs. Molecularly imprinted polymers (MIPs) composed of tailor-made cavities for specific target molecules are appealing complementary additives that can overcome this limitation. Accordingly, adding MIP to the carbon paste matrix can contribute to the required selectivity of sensing platforms. This review aims to present a categorized report on the recent research and the outcomes in the combinatory fields of MIPs and CPEs for determining pharmaceuticals in complex and simple matrices. CPEs modified with MIPs of various pharmaceutical compounds, including analgesic drugs, antibiotics, antivirals, cardiovascular drugs, as well as therapeutic agents affecting the central nervous system (CNS), will be addressed in detail.Copyright © 2023 Elsevier B.V.
ABSTRACT
Sensing Tools and Techniques for COVID-19: Developments and Challenges in Analysis and Detection of Coronavirus helps readers understand the basic principles of sensor development. Sections give a brief overview of the physical and chemical properties of sensing tools and the basics of techniques. With recent advancements in sensing technology, various smart materials and techniques are now being employed for new purposes. In addition, biosensing devices can be tuned at the molecular level to perform better detection of COVID-19. This book covers the various approaches for the development and fabrication of biosensor systems for the analysis of the novel coronavirus. In addition, the book discusses the commercialization and standardization of biosensing technology, along with future perspectives on biosensor technologies used for the analysis and treatment of COVID-19. This book will serve as an up-to-date source of trusted information on biosensor tools and techniques for the analysis of COVID-19. © 2022 Elsevier Inc. All rights reserved.
ABSTRACT
COVID-19 in the Environment: Impact, Concerns, and Management of Coronavirus highlights the research and technology addressing COVID-19 in the environment, including the associated fate, transport, and disposal. It examines the impacts of the virus at local, national, and global levels, including both positive and negative environmental impacts and techniques for assessing and managing them. Utilizing case studies, it also presents examples of various issues around handling these impacts, as well as policies and strategies being developed as a result. Organized into six parts, COVID-19 in the Environment begins by presenting the nature of the virus and its transmission in various environmental media, as well as models for reducing the transmission. Section 2 describes methods for monitoring and detecting the virus, whereas Sections 3, 4, and 5 go on to examine the socio-economic impact, the environmental impact and risk, and the waste management impact, respectively. Finally, Section 6 explores the environmental policies and strategies that have comes as a result of COVID-19, the implications for climate change, and what the long-term effects will be on environmental sustainability. © 2022 Elsevier Inc. All rights reserved.
ABSTRACT
The effect of COVID-19 is changing the ways in which we live, starting with one day then onto the next. While national and local regulatory interventions are widely centered on securing human wellbeing and economies, effective and sustainable waste management approaches are of paramount importance to limit the possible secondary environmental impacts in the longer run. In addition, considering the trend of the last 20 years, the COVID-19 episode is the third reported pandemic this century, following SARS and MERS in 2003 and 2012, individually. Therefore, similar pandemics with potentially greater magnitude and graver impacts are more likely to occur in the future based on the earlier analyses of disease outbreaks. It is within this context and more broadly to address overwhelmed waste management system exposed during the pandemic, the chapter aims to present: (i) the status of global solid waste generation and changes in its dynamics brought upon by COVID-19 crisis due to the fluctuated resource consumption, (ii) pandemic induced consumer’s behavioral changes resulting in panic purchasing of groceries, food stockpiling, over-buying, inappropriate storage, and overcooking which ultimately ended up as households waste, (iii) challenges and limitations faced by waste management authorities in handling the abrupt increase in volume and type of the solid waste generated globally, and, (iv) opportunities and strategies that gravely enables in obtaining resilient and sustainable waste management practices to overcome similar challenges in future pandemics. © 2022 Elsevier Inc. All rights reserved.
ABSTRACT
COVID-19 is considered as a major public health problem caused by the SARS CoV-2. This Viral infection is known to induce worldwide pandemic in short period of time. Emerging evidence suggested that the transmission control and drug therapy may influence the preventive measures extensively as the host surrounding environment and pathogenic mechanism may contribute to the pandemic condition earlier in COVID-19 disease. Although, several animals identified as reservoir to date, however human-to-human transmission is well documented. Human beings are sustaining the virus in the communities and act as an amplifier of the virus. Human activities i.e., living with the patient, touching patient waste etc. in the surrounding of active patients or asymptomatic persons cause significant risk factors for transmission. On the other hand, drug target and mechanism to destroy the virus or virus inhibition depends on diversified approaches of drugs and different target for virus life cycle. This article describes the sustainable chemical preventive models understanding, requirements, technology adaptation and the implementation strategies in these pandemic-like situations. As the outbreak progresses, healthcare models focused on transmission control through disinfections and sanitization based on risk calculations. Identification of the most suitable target of drugs and regional control model of transmission are of high priority. In the early stages of an outbreak, availability of epidemiological information is important to encourage preventive measures efforts by public health authorities and provide robust evidence to guide interventions. Here, we have discussed the level of adaptations in technology that research professionals display toward their public health preventive models. We should compile a representative data set of adaptations that humans can consider for transmission control and adopt for viruses and their hosts. Overall, there are many aspects of the chemical science and technology in virus preventive measures. Herein, the most recent advances in this context are discussed, and the possible reasons behind the sustainable preventive model are presented. This kind of sustainable preventive model having adaptation and implementation with green chemistry system will reduce the shedding of the virus into the community by eco-friendly methods, and thus the risk of transmission and infection progression can be mitigated.
ABSTRACT
The outbreak of the COVID-19 epidemic, which appeared at the end of 2019, has had a tremendous impact on the entire world, both in terms of health, economics and the environment. So far, extensive strategies have been implemented for the fast diagnosis, prevention, control and treatment of the SARS-CoV-2 virus. Advances in technologies based on metals and metal oxides nanoparticles such as Ag, Au, Cu2O, TiO2, Fe3O4, have opened up new perspectives in this regard. These materials have been extensively used for the management of COVID-19 due to their unique features. These materials have been applied for the preparation of antiviral face masks, coatings, different immunosensors, etc. In this review, we summarize and highlight the latest technologies, implementations and achievements based on metal and metal oxide nanoparticles in order to fight the emerging coronavirus. We present the preventive and diagnostic strategies to control this epidemic with the help of metals and metal oxide nanoparticles.