a) 2025 - 27 Documents

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ADDRESSING THE MICROPLASTIC POLLUTION: A SOCIETAL CHALLENGE (Article)
(Springer Nature, 2025-01) Udhayakumar, Minisha; Udhayakumar, Shanmugapriya; Pitchaimuthu, Subha Bharathi; Alagarsamy, Sandhya; Thirumalaisamy, Kayalvizhi; Azeem, Muhammad; Govindarajan, Ramkumar; Damodharan, Karthiyaini; Madhubala Parameswaran, Ayyappa Das; Arockiam Jeyasundar, Parimala Gnana Soundari
Microplastics (MPs) pollution in soil have emerged as a significant environmental concern, infiltrating ecosystems and posing threats to ecological, plants, human, and animal health. We aim to provide a comprehensive understanding of microplastics, exploring their types, sources, pathways, and impacts across different environmental compartments. Begins with an introduction to microplastics, this review offers details on their classification and examines their omnipresence in aquatic and across other environments highlighting their persistent nature and complex pathways. It culminates the urban runoff, industrial discharges, anthropogenic activities, and agricultural inputs as major contributors, underscoring the need for targeted intervention strategies. The review underscores the detrimental effects of microplastics on aquatic life, soil fertility, and food safety, while also addressing the broader societal implications, including economic costs and public health concerns. Sampling and detection methods for microplastics are critically reviewed, covering advanced techniques and technologies that enable accurate identification and quantification of these pollutants. Overall, underscoring the dynamic nature of the microplastic pollution by synthesizing current knowledge and advancements, this review calls for the long-term monitoring and adaptive management strategies for future research, policy-making, and public initiatives towards a sustainable and microplastic-free environment
ADVANCES IN FIELD EFFECT TRANSISTOR BASED ELECTRONIC DEVICES INTEGRATED WITH CMOS TECHNOLOGY FOR BIOSENSING (Review)
(Elsevier B.V., 2025) Rai, Harshita; Singh, Kshitij RB; Natarajan, Arunadevi; Pandey, Shyam S
This review article embarks on an enlightening journey through the multifaceted realm of electronic devices and their applications in biosensing, emphasizing the role of Field effect transistor (FET) based biosensors and Complementary Metal Oxide Semiconductor (CMOS) processes in biosensing device development. It begins by elucidating the foundational principles of biosensing and underscoring the crucial contribution of transducers, establishing a robust understanding of the field. The article unravels the intricate interplay between electronic biosensors and CMOS processes, offering a concise yet insightful exploration of their operational intricacies, diverse practical applications, and recent advancements. Additionally, it spotlights the pivotal role of FET-based biosensors integrated with CMOS processes in miniaturizing biosensors and thus amplifying their real-world efficacy. Moreover, the role of modern technologies, such as the Internet of Things (IoT), in recent biosensor development has been discussed. By addressing inherent challenges like sensitivity, integration, cost, and accessibility, the article underscores the vital role of biosensing technologies driven by electronic devices in wearable technology development. In addition, integrating these devices to fit with the ongoing trend of VLSI technology faces significant challenges. To overcome this aspect, sensors based on molecularly imprinted polymers (MIPs) can be the best alternative, as they will avoid utilizing bioreceptors, as it simplifies integration by reducing complexity, enhancing stability, and improving compatibility with CMOS processes. Hence, this review's distinct contribution lies in its comprehensive approach, shedding light on how biosensing technologies, underpinned by electronic devices such as FETs and CMOS processes, offer solutions for realizing modern-day devices.
CERAMIZATION OF ABO GLASSES UNDER THE INFLUENCE OF O7+ ION IRRADIATION (Article)
(Elsevier Ltd, 2025-02) Karthika S; Asokan K; Marimuthu K; Meena, Ramcharan; Sundari, S Shanmuga
Alkali borate (ABO) glasses of the composition 15A2O-85B2O3 where A = Li (lithium), Na (sodium) and K (potassium) are prepared using the thermal melt quenching technique. Pure analytical grades of boric acid (H3BO3), lithium carbonate (Li2CO3), sodium carbonate (Na2CO3) and potassium carbonate (K2CO3) are used for the preparation of LBO, NBO and KBO glasses respectively. The ABO glasses are irradiated with 100 MeV O7+ ion beam using 15 UD Pelletron tandem accelerators for fluences like 1 × 1011, 5 × 1011, 1 × 1012, 5 × 1012 and 1 × 1013 ions/cm2. The electronic energy loss is predominant and depth of propagation is calculated from SRIM and TRIM. The XRD and FE-SEM confirm the transformation of polycrystalline structure and growth of grains on the surface after the O7+ ion irradiation. LBO glasses at higher fluences revealed lithium tetrahydroxohexaoxopentaborate trihydrate with a monoclinic structure. The sharp and well-defined XRD peaks affirmed the transition from glass to glass ceramics after the irradiation. Formation of grains on the surface of the ABO glasses after the O7+ ion irradiation confirms the glass ceramics nature. KBO glasses possess enhanced stability even under ion irradiation. The optical bandgap decreased under ion irradiation. O7+ ion irradiation leads to a decrease in the tail of the Urbach energy, indicating reduced disorder in the ABO glasses. The transmission efficiency of both ABO glasses and glass ceramics is evaluated through reflection loss (Lr), transmission coefficient (T), and metallization criteria (M) and the suitability of the ABO glasses for nonlinear optical applications are discussed.
A COMPREHENSIVE REVIEW ON TAILORING FACTORS OF POROUS BISMUTH OXYHALIDE PHOTOCATALYSTS FOR WASTEWATER TREATMENT APPLICATION (Article PDF)
(Taiwan Institute of Chemical Engineers, 2025-01) Kar, Prasenjit; Sathiyan, Govindasamy; Vivekanandan, K E; Venkatesan, Geetha; Siva, Govindasamy; Subramani, Ramesh; Kandasamy, Sabariswaran
Background: Photocatalysis is a green, environmentally friendly approach for converting organic contaminants into harmless byproducts. Especially, Bismuth oxyhalides (BiOX, where X = Cl, Br and I) have emerged as promising photocatalysts for wastewater treatment due to their layered-by-layered structure, strong chemical stability and nontoxicity in compare to other metal oxides, which makes the photocatalyst advantageous for photocatalytic application. Methods: This review provides an overview of recent developments in the synthesis and application of BiOXbased porous photocatalysts for the removal of organic contaminants from wastewater. Firstly, morphologycontrolled synthesis of BiOX in degradation of organic contaminants. Then, modulation of electronic structure through doping, facet engineering and surface engineering has been highlighted for better photocatalytic applications. Furthermore, fabrication of diverse heterojunctions and co-catalyst loading upon BiOX are introduced, which can vary photocatalytic activity towards the degradation of organic contaminants. Significant findings: Finally, this review ended on the future trend and prospects of BiOX for the creation of potential high-performance photocatalysts in the near future. The porous structure of BiOX improved photocatalytic activity, pollutant degradation efficiency, visible light response charge carrier separation, and stability. Overall, bismuth oxyhalide photocatalysts have a lot of potential for effective and long-term wastewater treatment, and their development represents an important step towards addressing the global water pollution crisis.
CORRECTION TO: INTEGRATING SOLID STEM AND MULTIPLE DISEASE RESISTANCE FOR DEVELOPING CLIMATE-RESILIENT WHEAT (TRITICUM AESTIVUM L.) (Erratum)
(Akademiai Kiado ZRt, 2023-01-23) Shajitha P.; Nisha R; Sivasamy M; Jayaprakash P; Vikas V.K; Gajalakshmi K; Mallick, Niharikha; Babu, Prashanth; Yadav, Rajbir; Vijaishree S; Akileshwaran K.; Peter, John
In this article there is a misrepresentation of rainfall data in the Materials and Methods section under the Study Location and Plant Materials subsection. The original text inaccurately attributes higher rainfall during the winter season to the southwest monsoon. The corrected text, which aligns with regional meteorological data, is shown below. Original Text (3rd to 5th sentences in the subsection): The summer months, particularly from June to October, experience significantly higher rainfall due to the southwest monsoon, contributing approximately 1000–1200 mm to the region’s total annual precipitation. The winter (Rabi) months (November to April) generally have reduced rainfall, averaging around 200–400 mm. This lower precipitation is often attributed to occasional western disturbances, resulting in more stable weather patterns during the winter season. Corrected Text: During the winter season (Rabi, November to March), the northeast monsoon contributes the majority of the annual rainfall, averaging 1000–1200 mm. Despite this higher rainfall, crops are typically in the active tillering stage, which benefits from consistent soil moisture. Conversely, during the summer season (Kharif, June to September), the southwest monsoon contributes a lesser amount of 200–400 mm, but the number of rainy days is significantly higher. This continuous precipitation ensures sustained soil moisture and creates persistently humid conditions, impacting crop growth. This correction is essential as the rainfall data plays a critical role in understanding the environmental factors influencing crop resilience and growth patterns, which is a key focus of our study. In addition to this error, there were minor errors in the captions to Figs. 3 and 4 in that the terms Sr36/Pm6 and Lr19/Sr25, resp., were inadvertently included twice. The original article has been corrected.
CULTIVATING WORKPLACE FLOURISHING: THE SYNERGY OF MINDFULNESS, AUTHENTIC LEADERSHIP, AND ITS IMPACT ON PERFORMANCE & RESILIENCE (Book Chapter)
(Springer Science and Business Media Deutschland GmbH, 2025) Lara Priyadharshini, S; Divya Lakshmi, J; Nirmala Devi, N; Jisha, V G; Shobana, R; Sathiya Priya, K
In today’s dynamic and competitive business environment, the pursuit of workplace flourishing has become a focal point for organizations striving to enhance employee well-being, performance, and resilience. This study explores the interplay between mindfulness, authentic leadership, and their combined impact on the productivity and resilience of financial analysts in India. Drawing on data collected from (n = 246) financial analysts across various firms in India. SPSS and structural equation modelling were used to examine the data. Quantitative analyses reveal a positive relationship between mindfulness, productivity, and resilience, at the same time the introduction of the mediating variable of authentic leadership takes the study on a different path way. Authentic leadership fully mediates the relationship between mindfulness and resilience whereas authentic leadership partially mediates between mindfulness and productivity. Mindful financial analysts achieve heightened productivity and resilience through enhanced focus, rational decision-making, and effective stress management, leading to more informed and sustainable outcomes in their analyses and strategies. These findings underscore the importance of integrating mindfulness and authentic leadership to cultivate workplace flourishing and fortify resilience in today’s competitive business environment.
DECIPHERING THE IMPORTANCE OF NANOENCAPSULATION TO IMPROVE THE AVAILABILITY OF BIOACTIVE MOLECULES IN FOOD SOURCES TO THE HUMAN BODY (Article)
(Elsevier Ltd, 2025-02) Pugazhendhi, Arivalagan; Alshehri, Mohammed Ali Mohammed Ali; Kandasamy, Sabariswaran; Sarangi, Prakash Kumar; Sharma, Ashutosh
Various bodily functions are maintained, and health benefits are provided by food-derived bioactive components. Fruits and vegetables contain numerous beneficial components, including vitamins, minerals, antioxidants, enzymes, and phytonutrients. However, the body's ability to absorb these substances at a given rate and degree frequently limits their bioavailability. If food-derived bio actives are used as therapeutic or dietary interventions, this limitation can result in low efficacy and suboptimal results. Recently, nanotechnology has been a useful method for increasing the bioavailability of bioactive compounds produced from food. Active ingredients can be delivered and absorbed more efficiently with the help of nanotechnology. By altering their size or surface properties, bioactive components can be made more soluble, permeable, and bioavailable through nanotechnology. The present review will provide an overview of the various bioactive components, the application of nanotechnology to improve the availability of bioactive molecules to humans and animals, and the challenges and safety concerns associated with nanotechnology in the production of food-derived bioactive molecules.
EXPLORING THE PERCEPTIONS AND UTILIZATION OF SOCIAL MEDIA ADVERTISING STRATEGIES IN CONTEMPORARY MARKETING PRACTICES: A STUDY ON AWARENESS AND IMPLEMENTATION AMONG BUSINESSES (Book Chapter)
(Springer Science and Business Media Deutschland GmbH, 2025) Gowrishankar, R; Saranya, B; Lekha Shree, S; Sangeetha, R
In today’s marketing landscape, internet-based platforms have evolved into critical avenues for firms to engage with their target consumers and promote their goods. This study aims to investigate the awareness and implementation of social media advertising tactics in the marketing area. Through a comprehensive investigation employing both quantitative and qualitative methodologies, this study aims to unravel the perceptions and utilization patterns of social media advertising among businesses operating across diverse sectors. The research methodology encompasses the distribution of surveys aimed at gauging the familiarity of businesses with various social media platforms, advertising formats, targeting capabilities, and metrics for measuring campaign effectiveness. Additionally, in-depth interviews will be conducted with marketing professionals to delve deeper into their experiences, challenges encountered, and successful strategies implemented in the realm of social media advertising. The finale of this study is expected to provide useful insights into the current state of social media advertising in marketing strategies. By analyzing widespread trends, barriers, and possibilities, this research strives to provide organizations with actionable knowledge to maximize their marketing efforts on social media platforms. By identifying prevalent trends, obstacles, and opportunities, this research seeks to equip businesses with actionable intelligence to optimize their marketing endeavors on social media platforms. Furthermore, by bridging the gap between awareness and implementation, this study endeavors to empower businesses to refine their strategies, bolster brand visibility, and foster meaningful engagement with their audiences in the digital sphere. This study aims to contribute significantly to the changing landscape of digital marketing by providing empirical information and practical advice. By leveraging the findings of this study, businesses can enhance their proficiency in social media advertising, thereby bolstering their competitive edge and augmenting their overall marketing effectiveness.
EXTRACTION, CHARACTERIZATION AND IDENTIFICATION OF MICROPLASTICS FROM LANDFILL SOIL (Article)
(Kalpana Corporation, 2025-01) Vinod, Veena; Amritha P.S; Harathi P.B
Recently, landfills have become the major sink of all the microplastic waste and hazardous materials that adhere to their surfaces. Hence, it is of utmost importance to detect and estimate the presence of microplastics in landfills to ascertain the fate and impact of these pollutants on the terrestrial environment. Therefore, in this study, the soil samples were collected from seven points of landfills from three layers, extracted using a standard protocol, examined under a stereomicroscope and identified using ATR-FTIR analysis. The abundance of microplastic was high in layer 1 with 64%. Fragments and fibers were abundant in all three layers. The microplastic of size range 0-1 mm were predominantly found in all the layers. Colours, such as white, transparent and blue, were abundant. In addition, the physico-chemical parameters of the site were also studied.
FINITE-TIME RESILIENT CONTROL FOR UNCERTAIN PERIODIC PIECEWISE POLYNOMIAL TIME-VARYING SYSTEMS (Article)
(SAGE Publications Ltd, 2025-01) Thilagamani, Velusamy; Sakthivel, Rathinasamy; Satheesh, Thangavel; Mohammadzadeh, Ardashir; Sasirekha, Rathinasamy
This study explores the problem of finite-time resilient control for periodic piecewise polynomial time-varying systems in the face of parameter uncertainties, time-varying state delays and external disturbances. Particularly, the considered system is characterized by dividing the fundamental period of periodic systems into numerous subintervals, each of which can be expressed by using matrix polynomial functions. The foremost intention of this work is to lay out a resilient controller such that the resulting closed-loop system is finite-time bounded and satisfies a mixed and passivity performance index. Furthermore, by constructing a periodic piecewise time-varying Lyapunov–Krasovskii functional, a delay-dependent sufficient condition is established in line with Wiritinger’s inequality and matrix polynomial lemma to guarantee the needed outcomes of the system under study. Following this, the gain matrix of the devised controller can be calculated by solving the established constraints. As a final step, we conclude with a numerical example that validates the potential and importance of the theoretical discoveries and the developed control scheme.
HARMONIZING POLICY OBJECTIVES WITH ECONOMIC DEVELOPMENT AND INDUSTRIALIZATION STRATEGIES (Book Chapter)
(Springer Science and Business Media Deutschland GmbH, 2025) Mohanraj, S; Aiswarya Lakshmi, T; Nathiya, T; Yasodha Devi, L; Sujaritha, D; Gowrishankar, R
The objective of this qualitative study is to shed light on potential pathways for smooth integration at the regional or national levels by exploring the complex interactions that exist between policy goals and more general economic development methods. This study uses a novel technique called word cloud analysis to clarify the underlying thematic priorities and values that are ingrained in the policies that are now in place. Through close examination of the textual corpus of relevant policy papers, important themes surface that made clear the guiding principles and general objectives of governmental activities. This research identifies similarities and differences between policy goals and more general agenda for economic development through methodical examination. Word frequencies and co-occurrences are compared to provide a more detailed picture of the policy landscape, highlighting possible conflicts as well as areas of agreement. This approach facilitates the discovery of focal points for integration and synergy, directing policymakers toward the unification of divergent goals for comprehensive economic growth. Additionally, this study aims to close the knowledge gap between policymakers and practitioners by providing practical insights. Strategic recommendations are made to help ensure that policy objectives are smoothly incorporated into more comprehensive plans for economic development and industrialization. These recommendations are developed by combining the results of the word cloud analysis with qualitative evaluations. To promote synergy and coherence across several policy domains, these ideas include targeted interventions, stakeholder engagement initiatives, and institutional reforms. In the end, this study advances the conversation about successful policy integration for long-term, sustainable economic growth. It provides policymakers with a road map for navigating the challenges of policy convergence and promoting inclusive and cohesive economic growth at both the regional and national levels by utilizing cutting-edge methodology and qualitative insights.
HYDRAZINE-DERIVED SALTS: UNVEILING THEIR DIVERSE POTENTIAL THROUGH SYNTHESIS, CHARACTERIZATION, PHARMACOLOGY, AND THEORETICAL ANALYSIS (Article)
(Korean Society of Industrial Engineering Chemistry, 2025-01) Appusamy, Sangeedha; Butcher Raymond, J; Premkumar, Thathan; Kanchana, Ponnusamy
This study focuses on newly synthesized compounds derived from hydrazine derivatives, specifically methyl carbazate (MCZ, C2H6N2O2) and 2-thiobarbituric acid (2-TBA, C4H4N2O2S). The reaction between MCZ and 2-TBA resulted in the formation of three types of salts with the following compositions: [(C2H7N2O2)+(C4H3N2O2S)− (1), (C2H7N2O2)+(C4H3N2O2S)−(C2H6N2O2) (2), and (C2H7N2O2)+(C6H16N)+(C4H3N2O2S)2− (3) [(C6H16N)+ represents the triethyl ammonium cation]. The prepared salts were comprehensively characterized, showing that compound (3) exhibited a monoclinic crystal structure and met Lipinski’s rules, indicating significant drug-like properties. Molecular docking analysis revealed that these compounds exhibited strong binding affinities toward bacterial proteins, particularly Staphylococcus aureus and Escherichia coli, indicating their potential as antibacterial agents. The synthesized compounds demonstrated remarkable free radical-scavenging abilities, as evidenced by DPPH assays. The results of pharmacological evaluations, including brine shrimp lethality assays, antibacterial tests, and anticancer studies on MCF-7 cell lines, revealed that the compounds exhibit highly significant activities, particularly cytotoxic effects, suggesting their potential as anticancer agents. The compound (3) emerged as the most effective anticancer agent against MCF-7 cells. These findings underscore the broad potential of these compounds, especially (3), as promising agents with significant antibacterial, antioxidant, and anticancer activities, suggesting that they may contribute to the field of medicinal chemistry with implications for therapeutic applications.
IN-SITU GROWN NIFELDH NANOSHEETS OVER NITROGEN RICH AMORPHOUS CARBON NANOTUBES: AN ELECTROCHEMICAL SENSING PLATFORM FOR THE DETECTION OF DEPRESSION BIOMARKER (Article)
(Elsevier Ltd, 2025-01) Sivaraman, Narmatha; Kanagaraj, Rithanya; Thangamuthu, Rangasamy
In this work, intrinsic conductivity mismatch of NiFe layered double hydroxide (NFL) catalysts and agglomeration of nanosheets were addressed by introducing N doped carbon nanotubes (NCNTs) which improves catalytic activity. Using a one-step wet chemical process, CNT-supported NiFeLDH nanosheets (NFL/NCNTx, x = 20, 50 and 100) were effectively created. This work delves into the lower level sensitive electrochemical detection of serotonin (5-HT) by utilizing synergy of CNT and LDH. The modified NFL/NCNT exhibits better electrochemical activity, appreciable sensitivity and spanned a concentration range of 0.01–400 μM with detection limit stood at 1.2 nM due to the plethora of electrochemical active surface area, remarkable conductivity and appreciable stability. Impressively, 96.0–96.8 % and 96.7–97.2 % recovery rates achieved in human urine and serum samples were well close to HPLC data, signifying its feasibility for real-time monitoring. The operational stability of the proposed sensor retained up to 89.13 % for 6 weeks. The present study highlights that tailoring NFL-NCNT heterojunction is an important strategy for the development of active and stable sensing platform.
INFLUENCING FACTORS OF LINKEDIN BY JOB SEEKERS AND PROFESSIONALS IN IT SECTOR (Book Chapter)
(Springer Science and Business Media Deutschland GmbH, 2025) Dhanasekar, E; Dharchana, S; Priyanka, S; Manasha, S; Tharaka Rani, V M; Gowrishankar, R
LinkedIn is a platform where all the professionals connects together with industry peers and colleagues. This network building will provide more opportunities for job referrals to the fellow peers. Job seekers utilize this platform as a tool for job alerts and job openings where they can directly apply for the positions. This platform can also be used for the self-branding. Professional people use this platform to build their profile that showcases their skills, experiences and achievements. Online resources are spread wide across the platform which the individuals get benefits from online learning and training. Job seekers can update themselves according to the companies current requirements by going through this online platform. Thus, LinkedIn platform has been considered as the most important influencing factor among job seekers and IT Professionals.
LEVERAGING PRETRAINED TRANSFORMERS FOR ENHANCED AIR QUALITY INDEX PREDICTION MODEL (Article PDF)
(Institute of Advanced Engineering and Science, 2025) Velusamy, Santhana Lakshmi; Madhaya Shanmugam, Vijaya
Air pollution mitigation is essential to ensure sustainable development, as it directly affects climate change, economic productivity, and social well-being. Despite the availability of numerous prediction techniques, machine learning (ML) remains the optimal solution for forecasting air pollution. Constructing a prediction model for a region with limited data poses a challenge. This study presents a novel technique that combines temporal fusion transformer (TFT) with transfer learning to create an inventive air quality index (AQI) prediction model, effectively utilizing temporal insights and prior knowledge. The TFT is an advanced deep neural architecture engineered to enhance time series forecasting through the fusion of sequence modelling and global temporal patterns. By fusing TFT with transfer learning, the research pioneers a fresh approach to AQI prediction for region with data scarcity issue, capitalizing on cross-domain knowledge transfer. Utilizing meteorological and pollutant data from the Cochin region, a hybrid AQI prediction model is constructed through TFT and transfer learning. Employing a preexisting TFT model trained on Trivandrum data, transfer learning technique is utilized to adapt the model for predicting AQI in the Cochin region. The study demonstrates that integrating TFT with transfer learning yields superior accuracy compared to an exclusive TFT-based approach.
NANOPLASTICS IN HEAT-SENSITIVE FOOD PACKAGING: A REVIEW OF MIGRATION, DETECTION, HEALTH, AND ENVIRONMENTAL IMPACTS (Review)
(Elsevier Ltd, 2025-03) Palanisamy, Senthilkumar; Saravana Kumar, Barani Kumar; Vetrivel, Aishwarya; Michael, Rahul Jacob; Babu, Nivethitha; Nallamuthu, Sanjay Sharan; Saravanan, Kokila; Venkatachalam, Shanmugam; Naveen Kumar, R J; Selvaraju, Gayathri Devi; Selvakesavan Rajendran, K; Lee, Jintae
The widespread use of plastics in food packaging, particularly during heat processing, has raised significant concerns about the release of micro- and nanoplastics into food. This review comprehensively examines the sources, detection methods, health impacts, and environmental consequences of micro- and nanoplastics generated from heat-packed food. The mechanisms by which these particles are released during heating, sophisticated analytical methods for their detection, potential health risks from consumption, and the effects of these particles have on the environment are covered in detail. Current regulatory frameworks and mitigation strategies are critically assessed, highlighting challenges and opportunities in managing plastic contamination. Key research areas are identified to address knowledge gaps and improve food packaging safety. This review informs decision-making and policy development to mitigate the risks associated with micro- and nanoplastics in heat-packaged food.
NON-INVASIVE MEASUREMENT OF SPOILAGE OF PACKED FISH USING HALOCHROMIC SENSOR (Article)
(Emerald Publishing, 2025-02-21) Devarayan, Kesavan; Palanisamy, Yazhiniyan; Mohan, Gangeswar; Theivasigamani, Anand; Kandasamy, Sabariswaran; Sekar, Vimaladevi; Siluvai John, Evon Umesh; Sukumaran, Monikandon; Marimuthu, Ramar; Anjappan, Hema
Purpose: This study aims to develop a pH-functional thin-film sensor for non-invasive measurement of spoilage of packed fish. Design/methodology/approach: At first, polymers of natural origin such as hydroxy(propyl)methyl cellulose, potato dextrose agar and starch alongside a pH sensitive-mixed indicator formulation were used to produce thin film sensor. The developed thin film sensor was tested for monitoring the spoilage of seafood stored at 4°C. Using ultraviolet-visible and Fourier-transform infrared spectroscopy, the halochromic sensor was characterised. In addition, the halochromic response of the thin film was directly correlated to the total volatile base nitrogen emitted by the packaged fish, pH, microbial activity and sensory evaluation. Findings: The results suggested the developed biopolymer-based thin film sensor showed different colours in line with the spoilage of the packed fish, which could be well correlated with the total volatile base nitrogen, microbial activity and sensory evaluation. In addition, the thin film sensors exhibited a high degree of biodegradability. The biopolymers-based thin film halochromic sensor has exhibited excellent biodegradability along with sensitiveness towards the spoilage of the packed fish. Originality/value: In the future, consumers and retailers may prefer seafood containers equipped with such halochromic sensors to determine the degree of food deterioration as a direct indicator of food quality.
PHYSICOCHEMICAL CHARACTERIZATION OF STARCH FROM MARANTA ARUNDINACEA L. (ARROWROOT) RHIZOMES AND ITS INHIBITION OF COX-2: IN VIVO VALIDATION (Article)
(Elsevier Ltd, 2025) Surendran, Nishaa; Raju, Manikandan Vani; Chandrasekaran, Meenakshi Kaniyur; Ahalliya, Rathi Muthaiyan; Palanisamy, Chella Perumal; Chandrasekaran, Geethadevi; Chandrasekaran, Geethadevi Velliyur
Maranta arundinacea L. (M. arundinacea L.) that belongs to the family Marantaceae is an underutilized tuber. The starch from the rhizomatous tubers is highly commercial and medicinal value is uncharacterized. This study was aimed at isolating the starch from Maranta arundinacea L. rhizomes, analyzing its physiochemical properties and examine its influence on anti-inflammatory activity. The physicochemical properties like Moisture and ash content, water holding capacity, water absorption index, amylose content, light transmittance and structural morphology of starch granules. Anti-inflammatory activity of starch from M. arundinacea L. was evaluated in Wistar rats by carrageenan induced paw edema. The biochemical estimation of serum enzymes, lipid peroxidation, enzymatic antioxidants and histopathological studies of paw tissues were carried out in paw tissues. Molecular expression of proinflammatory COX-2 gene was also analyzed. M. arundinacea starch was found to contain 9.3% moisture, 1.36% ash and 26.3% amylose content. The light transmittance (%) decreased with an increase in time. Micrographs of SEM analysis showed variations in the shape of granules that appeared as spherical and irregular. The size of granules varied between 2.86 and 6.92 μm. Attenuation in paw edema on treatment with M. arundinacea L. starch (200 mg/kg) was observed in comparison with that of standard drug Diclofenac sodium, the serum enzymes and enzymatic antioxidants were brought to near normal. The potent anti-inflammatory activities were confirmed by Histopathological studies. Molecular expression of proinflammatory COX-2 gene was also down regulated. It can be concluded that the dietary supplementation of starch from M. arundinacea L. to mitigate inflammation and reduce chronic diseases.
RECENT TRENDS IN USE OF PLANT-DERIVED CARBON DOT-BASED FLUORESCENT PROBES FOR HEAVY METAL ION DETECTION AND THEIR BIOLOGICAL APPLICATIONS (Review)
(Elsevier B.V., 2025) Venkatesan, Geetha; Sathiyan, Govindasamy
Plant-derived carbon dots (CDs) have drawn a lot of interest as superior nanomaterials because of their sustainable nature, biocompatibility, and environmentally friendly synthesis, which sets them apart from other CDs made from non-renewable resources. The synthesis of CDs from natural sources such as fruits, leaves, bark, stem, flower, seed and biowaste by hydrothermal, pyrolysis, and microwave-assisted method have been investigated to modify the size and features of CDs. The plant-derived CDs exhibit greater sensitivity and selectivity, and their high photoluminescent properties makes it possible to detect physiological and ecological significant metal ions like iron (Fe³⁺), copper (Cu²⁺), lead (Pb²⁺), and mercury (Hg²⁺). This study focuses mainly on crucial elements such as absorption, emission, sensitivity, selectivity, and limits of detection of metal ions, a thorough examination of their sensing characteristics is provided. This review article comprehensively summarizes plant-based CDs with different synthesis methods, characterization techniques, metal ion sensing and its mechanism, stability and biological imaging of CDs. Additionally, we discussed the plant derived CDs for the detection of pesticides and drugs. These CDs also find extensive applications in environmental remediation by offering a sustainable alternative for detecting harmful pollutants. Beyond these sensing, their biological uses of plant-derived CDs, such as bioimaging, antioxidant activity, and therapeutic potential, are finally addressed. This review emphasizes the bright future of plant-derived CDs in biomedicine and sustainable nanotechnology, with a focus on their biological applications and improved sensing capabilities in research development
SELF-ASSEMBLED COMPLEXES: FROM MOLECULES TO BIODERIVED MATERIALS FOR SUSTAINABLE SENSING TECHNOLOGIE (Editorial)
(Elsevier B.V., 2025-01-11) Singh, Ravindra Pratap; Pandey, Shyam S; Natarajan, Arunadevi; Singh, Jay
This special issue is focused on the development and characterization of nanosized self-assembled molecules for various sensing applications. The scope of the issue was contented and received many research and review articles, proving that the process of synchronizing chemistry/biology/material science with novel technology will end up with substances of sensing importance. The quality of the published articles in this issue is revealed from their way of interpretation, illustrative diagrams, and scientific explanation. All the articles in this special issue will upsurge the understanding and knowledge about functional materials to budding researchers.