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    Green Chemistry: Making Chemistry Environment-Friendly
    (Bentham Science, 2021) Sangeeta Bajpai, Saman Raza, Iqbal Azad, Tahmeena Khan
    Chemistry is all around the universe. Green chemistry underpins the enormous social and technological changes in the future. Beginning from eco-friendly chemical synthesis to green catalyst via green chemical reactions, it finds a good correlation with the environment, taking biosynthesis and biomimetic principles into consideration. Widespread interest in this field is seen today among scientists. Considering the present scenario of “The age of tools”, the compatibility with technology today is of utmost importance. Green chemistry is one of the powerful tools to cut the Gordian knot of pollution by reducing chemicals in the surroundings to make them eco-friendly. This chapter emphasizes the various aspects of green chemistry, from its principles to its applications, leading to a sustainable eco-friendly future.
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    Basics of Drug Designing Through Small Organic Molecules and Their Toxicological Impact on The Environment
    (Bentham Science, 2021) Mohd Azhar Khan, Arif Ali, Fakhra Jabeen, Malik Nasibullah, Tahmeena Khan, Musheer Ahmad, Qazi Inamur Rahman
    In the most basic sense, drug design involves designing molecules that are complementary in shape and charge to the biomolecular target with which they interact, and therefore will bind to it. The therapeutic potential of an organic molecule-based chemotherapeutic candidate is influenced by the basic functional groups, where the stereo-arrangement and stereo-selectivity of groups enhance the therapeutic benefits. Stereo-selective organic molecules in different configurations show diverse activity, such as (R) and (S) enantiomers of ibuprofen are effective pain killers but only (S) naproxen has inflammatory activity. Similarly, the transformation of diethyl stilbesterol has potential estrogenic activity and not the cis form. The softness or hardness of drugs depends on the functionality of organic molecules; mostly, the presence of hydroxyl and carboxylic groups improves the softness. This chapter deals with effective drug designing, including the structure-activity relationship and the influence of various functional groups on the activity of a drug compound. The toxicological impact of drugs on the environment has also been explored. In recent times, it has been successfully studied that residue of drugs could enter the ecosystem through the water channel. It directly or indirectly impacts soil, groundwater, and surface water, and creates environmental and health problems
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    Exploration of Advances in Sustainable Nanomaterials in Textile Industries
    (Springer Nature, 2024) Tahmeena Khan, Saman Raza, Shashi Bala
    The modern textile industry is observing a constant demand for novel and sustainable fabrics resulting in huge improvements in mechanical strength, texture and durability by infusing elements of nanotechnology. In recent times the advent of smart textiles has resulted from the combination of conventional materials with smart nanomaterials. Smart textiles or fabrics can adapt to different environmental conditions by altering their characteristic features accordingly. Nanotechnology is being explored to design sustainable fabrics which are infused with different prop- erties like microbial and ultraviolet resistance, hydrophobic, etc. This chapter aims to explore the recent advances in the field of textile designing via the conjugation of nanotechnology. The advances which are of great utility such as the introduction and functionalization of nanomaterials in textiles and the development of smart and cost-effective, efficient and wearable fibres for the fashion industry, personal and healthcare are summarized in the chapter. Along with the benefits, drawbacks like the nanotoxicity of the fabricated textiles and the remedial strategies are also discussed.
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    Applications of Environmental Science and Management
    (Scientific Intrnational Publishing House, 2024) Aman Zafri, Zeba Nisar, Khurram Asharaf, Rahil Ayaz
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    The Impact of Air Pollution and Environmental Factors on COVID-19 Transmission
    (2023) Tahmeena Khan; Alfred J. Lawrence , Vinay P. Aneja
    SARS-CoV-2 (COVID-19) has caused serious mortal damage to the human race. The virus causes respiratory infections, and many studies are trying to comprehend the mode of spread and infection. This chapter has explained the origin of the virus, its structure and activity domain, symptoms, medicinal interventions, and particularly various modes of spread with emphasis on air pollution as contributing and facilitating factors assisted with favourable meteorological conditions, including temperature and relative humidity. Pieces of evidence from different countries suggest that the spread of the virus may be facilitated by air pollution and people who are exposed to high pollution levels are more susceptible to falling victim to the virus. Transmission of the SARS-CoV-2 may be facilitated by the airborne particulate matter, and both particulate matter and coronavirus cause oxidative stress in the body that helps in enhancing the susceptibility and severity towards respiratory infection. Not only ambient air pollution, but indoor air pollution (IAP) is also a factor worth considering. People in developing and under-developed nations are at high risk as they are exposed to high IAP levels. Awareness must be created to educate them about the associated harmful consequences, including the risk of catching the lethal COVID-19 infection. In the absence of any concrete medicinal solution, it is necessary to build immunity which may be uplifted by the usage of natural food sources, including herbs and spices. An overview of some commonly available herbs and spices of medicinal importance has also been given in the chapter.