b) 2024 - 140 Documents

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Author: search.filters.author.Sabariswaran, Kandasamy

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    RECENT PROGRESS IN PT-BASED ELECTROCATALYSTS: A COMPREHENSIVE REVIEW OF SUPPORTED AND SUPPORT-FREE SYSTEMS FOR OXYGEN REDUCTION
    (Elsevier B.V, 2024-12-15) Narayanamoorthy, Bhuvanendran; Sabarinathan, Ravichandran; Sanghyun, Lee; Fereshteh, Dehghani Sanij; Sabariswaran, Kandasamy; Puran, Pandey; Huaneng, Su; Sae, Youn Lee
    In recent years, there has been notable progress in developing advanced catalyst materials and improving the performance of Pt-based catalysts for the oxygen reduction reaction (ORR). ORR is pivotal for achieving high energy conversion efficiency in fuel cells and metal-air batteries. Despite extensive research, balancing the activity and stability of electrocatalysts remains challenging. Due to the high cost and limited availability of Pt, there's a focus on developing Pt alloys, hybrid catalysts, and nanostructured materials with enhanced catalytic activity and utilization using cost-effective methods. Hybridizing multiple active components with Pt shows promise for achieving synergistic effects and meeting high-performance targets set by the U.S. Department of Energy for 2025. This review aims to present recent advances and assess the significance of supported and support-free Pt-based electrocatalysts for ORR. It focuses on carbon, inorganic, and hybrid support materials, as well as support-free metal nanostructures, highlighting their key features and catalytic potential. This offers valuable insights into developing novel Pt-based hybrid electrocatalysts for superior ORR performance in energy conversion and storage applications.
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    THE COMPREHENSIVE REVIEW ON 3D PRINTING- PHARMACEUTICAL DRUG DELIVERY AND PERSONALIZED FOOD AND NUTRITION
    (Elsevier Ltd, 2024) Meenakshi, Murugan; Selva Kumar, Ramasamy; Geetha, Venkatesan; Jintae, Lee; Selvaraj, Barathi; Sabariswaran, Kandasamy; Prakash Kumar, Sarangi
    Three-dimensional printing is one of the emerging technologies that is gaining interest from the pharmaceutical industry as it provides an opportunity to customize drugs according to each patient's needs. Combining different active pharmaceutical ingredients, using different geometries, and providing sustained release enhances the effectiveness of medicine. One of the most innovative uses of 3D printing is producing fabrics, medical devices, medical implants, orthoses, and prostheses. This review summarizes the various 3D printing techniques such as stereolithography, inkjet printing, thermal inkjet printing, fused deposition modelling, extrusion printing, semi-solid extrusion printing, selective laser sintering, and hot-melt extrusion. Also, discusses the drug relies profile and its mechanisms, characteristics, and applications of the most common types of 3D printed API formulations and its recent development. Here, Authors also, summarizes the central flow of 3D food printing process and knowledge extension toward personalized nutrition.
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    DESIGN AND SYNTHESIS OF SIMPLE QUINOLINE-BASED ORGANIC MOLECULES AS DUAL/MULTIFUNCTIONAL CHEMOSENSORS FOR THE DETECTION OF CU2+/FE3+ IONS
    (Elsevier B.V, 2024) Pitchai, Marimuthu; Ramu, Andy; Venkatesh, Nachimuthu; Asrar Ahamed, A; Geetha, Venkatesan; Arunachalam, Chinnathambi; Sabariswaran, Kandasamy
    The current research deals with the sensitivity of a turn-on-off fluorescence chemosensor using the probe, namely (E)-2-(((2‑hydroxy-5-methylphenyl) imino)methyl) quinolin-8-ol (HQ-AMP) as a selective detection of Cu2+/Fe3+ ions in DMSO: H2O (1:1, v/v). The probe HQ-AMP was synthesized using a simple acid catalyst, Schiff base condensation, which involves the reaction between aldehyde and amine. This probe shows a significant fluorescence response towards Cu2+ and Fe3+ ions among the other alkaline earth metal ions. The HQ-AMP forms a 1:1 stoichiometry complex with a high binding constant for Cu2+ and Fe3+ ions with a low detection limit of 34 nM and 47 nM, respectively. Due to their strong intermolecular charge transfer properties, the probe HQ-AMP shows intense fluorescence at 488 nm upon excitation at 350 nm. The selective fluorescence quenching of probe HQ-AMP with Cu2+/Fe3+ ions shows static/dynamic quenching and their quenching constant of 1.93 × 10−8 and 2.06 × 10−8, respectively. Also, the probe shows the highest selectivity towards Cu2+/Fe3+ ions over the other tested metal ions.
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    EXPLORING CUTTING-EDGE ADVANCES IN GREEN AMMONIA PRODUCTION AND STORAGE TECHNOLOGIES
    (Elsevier, 2024) Prakash Kumar, Sarangi; Rajesh K, Srivastava; Gitanjali, J; Govindasamy, Sathiyan; Geetha, Venkatesan; Sabariswaran, Kandasamy
    Green ammonia’s exceptional qualities, such as its high energy density, ease of handling, and robust transportation and storage infrastructure, position it as a leading choice for long-term energy storage and carbon-free fuel applications. This review comprehensively explores material-based methods for producing, storing, and utilizing green ammonia, emphasizing key findings with specific quantitative data on energy density, costs, and efficiencies. The critical need for efficient and sustainable ammonia production is emphasized due to its central role in reducing greenhouse gas emissions and facilitating the transition to a low-carbon economy. Various material-based approaches and catalysts, including innovative reactor designs and electrochemical processes, are meticulously examined. Furthermore, the review delves into safe and efficient storage methods for green ammonia, particularly exploring the potential of solid-state materials to regulate ammonia adsorption and release. Addressing challenges such as safety concerns and system integration is crucial for realizing the full potential of green ammonia storage solutions. Moreover, the economic benefits of green ammonia in chemical manufacturing, fertilizer production, and power generation underscore its multifaceted advantages across industries. Ultimately, this analysis highlights green ammonia’s role as a versatile and sustainable energy carrier, essential for driving towards a greener future.
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    CORRIGENDUM TO “FOOD WASTE-DERIVED BLACK SOLDIER FLY (HERMETIA ILLUCENS) LARVAL RESOURCE RECOVERY: A CIRCULAR BIOECONOMY APPROACH” PROCESS SAF. ENVIRON
    (Elsevier Ltd, 2024-04) Abirami, Ramu Ganesan; Kannan, Mohan; Sabariswaran, Kandasamy; Ramya, Preethi Surendran; Ragavendhar, Kumar; Durairaj, Karthick Rajan; Jayakumar, Rajarajeswaran
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    MODIFICATION OF CELLULOSE ACETATE MEMBRANE BY INTEGRATING MAGNETITE@XANTHAN GUM NANOCOMPOSITE TO ENHANCE PERFORMANCE CHARACTERISTICS
    (Elsevier, 2024) Sathish, Raam Ravichandran; Chitra Devi, Venkatachalam; Mothil, Sengottian; Deenadhayalan, Ramachandran; Asswin, Saminathan; Ananth, Raja; Geetha, Venkatesan; Arunachalam, Chinnathambi; Sabariswaran, Kandasamy
    Membrane technology, a versatile alternative to traditional separation processes in industries and wastewater treatment, was employed in this study. Membranes were fabricated using cellulose acetate (C), dimethyl sulfoxide (D), and glycerol (G) at various weight percentages. To enhance membrane performance, a Magnetite@Xanthan gum nanocomposite (NC) was synthesized in-situ and analysed using FESEM-EDS. Experimental investigations incorporated the doping of the membrane with NC at different percentages (0 wt%, 0.1 wt%, 0.5 wt%, and 1.0 wt%). Increasing NC content resulted in smoother surfaces, improving anti-fouling characteristics, as confirmed by AFM. Integrating NC into the pure membrane reduced the contact angle, with 1.0 wt% Fe3O4@XG recording the lowest angle at 56.18°. Physical property analyses covered viscosity, pH, water uptake percentage, and porosity to assess the impact of NC integration. Under 5 atm pressure, the 1.0 wt% Fe3O4@XG membrane exhibited a substantial pure water flux of 3069.55 lit.m-2 h−1 compared to pure CDG. Furthermore, the 0.5 wt% Fe3O4@XG membrane displayed the highest flux recovery ratio (60.42%) compared to pure CDG (48.18%). A biodegradability test showed that the 1.0 wt% Fe3O4@XG membrane exhibited superior weight loss (43.75%) over 28 days. This research underscores the potential of these membranes for diverse applications, including wastewater treatment and sustainability.
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    AN ASSESSMENT OF METAL ABSORPTION COMPETENCE OF INDIGENOUS METAL TOLERANT BACTERIAL SPECIES- AN IN-VITRO STUDY
    (Elsevier, 2024) Anusha, P; Natarajan, D; Sumathy, Rengarajan; Saleh, Alfarraj; Sabariswaran, Kandasamy
    Heavy metals pose a serious global threat to the environment. Hence, removing hazardous metals from soil samples has become complicated over the past few years. The current work looked into the remediation of heavy metals from aqueous solutions using a bacterial community and a unique bacterium obtained from metal-contaminated soil. In this investigation, the isolates of Bacillus anthracis A1-7, Bacillus. thuringiensis A1-3, Bacillus. cereus A1-5, and Pseudomonas aeruginosa A-33 actively demonstrated metal tolerances to various tested metals. Furthermore, an in-vitro biosorption study was performed under ideal concentration. The bacterial consortia achieved the highest biosorption effectiveness for Cu & Zn, 92.7% and 90.3%, respectively. When compared with a single bacterium, the group exhibited inferior Pb biosorption (86%). Since then, P. aeruginosa A33 has had the highest Pb biosorption. Finally, a bacterial consortium has devised an intriguing strategy for eliminating Cu and Pb from the polluted medium. P. aeruginosa A33 was found to be a mighty microbe that extracts Zn from polluted water. This metal-tolerant bacterium also exhibited specific proportions of selective commercially available antibiotics, which were analyzed using the Multiple Antibiotic Resistance (MAR) Index. In conclusion, these findings indicated that bacterial consortia composed of four bacterial isolates can remove metals from a metal-polluted medium.
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    ASSESSING THE ECOLOGICAL IMPACT OF PESTICIDES/HERBICIDES ON ALGAL COMMUNITIES: A COMPREHENSIVE REVIEW
    (Elsevier, 2024-03) Mathiyazhagan, Narayanan; Kesavan, Devarayan; Monu, Verma; Manickam, Selvaraj; Hamed A, Ghramh; Sabariswaran, Kandasamy
    The escalating use of pesticides in agriculture for enhanced crop productivity threatens aquatic ecosystems, jeopardizing environmental integrity and human well-being. Pesticides infiltrate water bodies through runoff, chemical spills, and leachate, adversely affecting algae, vital primary producers in marine ecosystems. The repercussions cascade through higher trophic levels, underscoring the need for a comprehensive understanding of the interplay between pesticides, algae, and the broader ecosystem. Algae, susceptible to pesticides via spillage, runoff, and drift, experience disruptions in community structure and function, with certain species metabolizing and bioaccumulating these contaminants. The toxicological mechanisms vary based on the specific pesticide and algal species involved, particularly evident in herbicides' interference with photosynthetic activity in algae. Despite advancements, gaps persist in comprehending the precise toxic effects and mechanisms affecting algae and non-target species. This review consolidates information on the exposure and toxicity of diverse pesticides and herbicides to aquatic algae, elucidating underlying mechanisms. An emphasis is placed on the complex interactions between pesticides/herbicides, nutrient content, and their toxic effects on algae and microbial species. The variability in the harmful impact of a single pesticide across different algae species underscores the necessity for further research. A holistic approach considering these interactions is imperative to enhance predictions of pesticide effects in marine ecosystems. Continued research in this realm is crucial for a nuanced understanding of the repercussions of pesticides and herbicides on aquatic ecosystems, mainly algae.
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    FOOD WASTE-DERIVED BLACK SOLDIER FLY (HERMETIA ILLUCENS) LARVAL RESOURCE RECOVERY: A CIRCULAR BIOECONOMY APPROACH
    (Elsevier Ltd, 2024-04) Abirami, Ramu Ganesan; Kannan, Mohan; Sabariswaran, Kandasamy; Ramya, Preethi Surendran; Ragavendhar, Kumar; Durairaj, Karthick Rajan; Jayakumar, Rajarajeswaran
    Black Soldier Fly (Hermetia illucens [L.], Diptera: Stratiomyidae) larvae (BSFL) production from food waste is gaining interest. Food waste, a heterogeneous mix of agro-food and catering leftovers serves as a challenging feedstock for BSF growth due to its varying nutrient composition. BSF, are classified as polyphagous insects with a digestive system featuring midgut for digestion and nutrient absorption. The conversion of food waste by BSFL is heavily influenced by Enterococcus, Klebsiella, Morganella, Providencia, and Scrofimicrobium, which play a vital role in substrate utilization. These microbes determine growth patterns, longevity, oviposition, and egg hatchability, which are intricately tied to the sugar and protein content of their dietary substrates. Pre-treatment techniques including hydrothermal treatment, ionization, pulse electric field discharge, and microbial treatment showed better efficiency in improving the wet waste biomass surface area and waste recovery ratio. In terms of environmental sustainability, a life cycle assessment (LCA) of food waste to BSF conversion facility yields a low global warming potential (GWP) score of 17.36 kg CO2 per ton of functional unit with a significant environmental impact during pre-treatment of food waste at a mass-rearing of BSFL. Therefore, this review emphasizes the digestive system, and gut microbiota of BSFL, with food waste-nutrient utilization by the BSFL. Environmentally promising steps involved in the valorization of food waste resources were evaluated in detail. This review also covers the international regulations involved in food waste fed BSFL, and techno-economic assessment to optimize its valuable nutrients for the new economy in waste management with less environmental footprint.
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    Β-CHITIN AND CHITOSAN FROM WASTE SHELLS OF EDIBLE MOLLUSKS AS A FUNCTIONAL INGREDIENT
    (Food Frontiers, 2024-01) Durairaj, Karthick Rajan; Kannan, Mohan; Jayakumar, Rajarajeswaran; Dharmaraj, Divya; Ragavendhar, Kumar; Sabariswaran, Kandasamy; Shubing, Zhang; Abirami, Ramu Ganesan
    The marine food-processing industries were producing large quantities of shell wastes as a discard. Currently, this waste material was underutilized and leads to the landfill as a significant environmental issue. The outer shells or exoskeletons of mollusks serve as the best source of chitin. Three different allomorphs of chitin (γ, β, and γ) were extracted from different species of crustaceans, mollusks, and fungi. β-Allomorphs predominantly exist in the shells of mollusks. β-Chitin and its deacetylated product chitosan has been utilized for its special characteristic features, including biocompatibility, environmental friendly, and nontoxic properties. The extraction of β-chitin and chitosan from the mollusk shell waste were evaluated in this work. Hence, this review aims to explore edible mollusk shell waste sources and its suitable extraction techniques, characterizations, and functional properties of mollusk-based β-chitin and chitosan. Further, the genetic pathway of synthesizing mollusk chitin was discussed. The entire life cycle assessment with techno-economic aspects were extrapolated to study the bottlenecks and tangible solution for the industrial upscaling of obtaining β-chitin and chitosan from the edible mollusk shell waste have been reviewed herein.