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Green synthesized cobalt nanoparticles from Trianthema portulacastrum L. as a novel antimicrobials and antioxidants
Trianthema portulacastrum is a dietary and medicinal plant that has gained substantial importance due to its pharmacological properties. This plant was used for its various healing properties since the ancient period in ayurvedic system of medicine. The green synthesis technique is an eco-friendly as well as cost effective technique which can produce more biocompatible nanoparticles when compared with those fabricated by physio-chemical methods. Therefore, nanoparticles produced by green synthesis are credible alternatives to those which are produced by conventional synthesis techniques. This research mainly aims to produce nanoparticles with the methanolic leaf extract of T. portulacastrum. The optimized nanoparticles were further analyzed for anti-fungal, anti-bacterial and antioxidant properties. Disk diffusion assay was used for the determination of the antimicrobial property and on the other hand, DPPH radical scavenging assay as well as hydrogen peroxide scavenging activity proved the antioxidant property of the formulation. The study revealed that Escherichia coli (gram negative strain) shows greater zone of inhibition when compared with Bacillus subtilis (gram positive bacteria). The nanoparticles have also been reported to show significant anti-fungal activity against the strains of Aspergillus niger and Fusarium oxysporum which proves its desirability for its further use against both bacterial as well as fungal infections. The novel formulation can be explored dually as antimicrobial and antioxidant agent. 2023 Taylor & Francis Group, LLC. -
Green Synthesized Fluorescent Nano-Carbon derived from Indigofera Tinctora (L.) leaf extract for sensing of Pb2+ ions
Plant-based synthesis of nanomaterials is a more reliable method since it is easy, quick, and environmentally friendly, and it does not require any specific conditions, unlike other methods. For the first time, we report the sensing of metal ions using a fluorescent nano-carbon material via a plant-based synthesis from the medicinal plant, Indigofera Tinctora (L.) (IBLH). This nanomaterial from the leaf extract of IBLH was synthesized by hydrothermal assisted green synthesis method. The as-synthesized sample was characterized by various spectroscopic techniques for confirming the formation of nano-carbon material. Optical studies revealed that IBLH was influential in determining toxic heavy metal ions (Pb2+). Detection of Pb2+ was observed from a range of 1 Molar to as low as 1Nano-Molar using IBLH as the probe. Stern-Volmer plot exhibits the progressive detection of the metal ion, proving that the IBLH nano-carbon material is capable of progressive sensing of various heavy metal ions. The Electrochemical Society -
Green Synthesized ZnO Nanoparticles as Biodiesel Blends and their Effect on the Performance and Emission of Greenhouse Gases
Pollution and global warming are a few of the many reasons for environmental problems, due to industrial wastes and greenhouse gases, hence there are efforts to bring down such emissions to reduce pollution and combat global warming. In the present study, zinc oxide nanoparticles are green synthesized using cow dung as fuel, through combustion. Synthesized material was characterized by FTIR, XRD, UV, and FESEM. The as-prepared ZnO-GS NPs were employed as a transesterification catalyst for the preparation of biodiesel from discarded cooking oil. The biodiesel obtained is termed D-COME (discarded cooking oil methyl ester), which is blended with 20% commercial diesel (B20). Additionally, this blend, i.e., B20, is further blended with varying amounts of as-prepared ZnO-GS NPs, in order to ascertain its effects on the quality of emissions of various greenhouse gases such as hydrocarbons, COx, NOx. Moreover, the brake thermal efficiency (BTHE) and brake specific fuel consumption (BSFC) were studied for their blends. The blend (B20) with 30 mg of ZnO-GS, i.e., B20-30, displays the best performance and reduced emissions. Comparative studies revealed that the ZnO-GS NPs are as efficient as the ZnO-C NPs, indicating that the green synthetic approach employed does not affect the efficiency of the ZnO NPs. 2022 by the authors. Licensee MDPI, Basel, Switzerland. -
Green-synthesized nanoparticles and their therapeutic applications: A review
Antibiotic-resistant microorganisms are a rising issue when it comes to human health. Microbial pathogens that cause harmful infections are quickly becoming resistant to the antimicrobial action of traditional antibiotics. Nanotechnology, an innovative sector being an indispensable part of healthcare and research, has in-depth and extensive applications. Nano-compounds have been promising antimicrobial agents, anti-cancerous mediators, vehicles for drug delivery, formulations for functional foods, identification of pathogens, food and drug packaging industry, and many more. However, the chemical synthesis of nanoparticles (NPs) has certain drawbacks such as causing toxicity and other adverse effects. For more than a decade, the use of NPs that are conjugated or green-synthesized has gained popularity due to the two-fold action of metallic NPs mixed with biological sources. In contrast, NPs synthesized using plant or microbial extracts, conjugated with biologically active components, appear to be a safe alternative approach as they are environmentally friendly and cost-effective. Such environmentally safe techniques are referred to as "green nanotechnology"or "clean technology"and are feasible alternatives to chemical methods. Furthermore, NPs conjugated with natural biomolecules have improved bioavailability and have minimal side effects, as they are smaller in size and have higher permeability in addition to being reducing and stabilizing agents possessing excellent antioxidant activity. NPs serve as potential antimicrobial agents due to their affinity towards sulphur-rich amino acids, adhere to microbial cell walls by means of electrostatic attraction, and disrupt the cytoplasmic membrane along with the nucleic acid of microbes. They possess anticancer activity owing to oxidative stress, damage to cellular DNA, and lipid peroxidation. The green-synthesized NPs are thus a promising and safe alternative for healthcare therapeutic applications. 2023 the author(s), published by De Gruyter. -
Green-Synthesized Sm3+-Doped ZnO Nanoparticles for Multifunctional Applications
The present study focuses on the green-mediated synthesis of pristine and Sm3+-doped ZnO nanoparticles using Syzygium cumini fruit extract. The prepared material was characterized by various characterization techniques. Photocatalytic degradation of a fast orange red (FOR) dye under UV light resulted in 88% degradation, with a minimal decrease (87.90%) observed even after five successive runs, indicating the stability and effectiveness of the catalyst. The enhancement in degradation efficiency is attributed to the incorporation of Sm3+ ions into the ZnO lattice. Utilizing the optimized Sm3+ (5 mol%)-doped ZnO nanoparticles, cyclic voltammetry (CV) and electrochemical impedance spectra (EIS) were performed on the prepared electrode, demonstrating the excellent CV properties; this enhancement is attributed to the modification of ZnO's redox chemistry and the alteration of charge transfer kinetics at the electrode-electrolyte interface due to the addition of Sm3+ into the ZnO structure. The antibacterial activity was performed against two pathogenic strains, i.e., Escherichia coli and Streptococcus aureus. The obtained results suggest that the prepared material holds great promise for catalytic, energy storage, antibacterial, and other multifunctional applications. 2024 Lavanya R. et al. -
Greener Assembly of Nano Catalysts and Sustainable Applications of Magnetically Retrievable and Plasmonic Nano Catalysts
Since ages, catalysts have played a pivotal role in accelerating the production and lowering the cost of a plethora of industrially important commodities. The latest in the scenario are nanocatalysts, which offer a wide array of advantages ranging from improved reaction rates to higher rates of recyclability. However, factors such as stability and support systems must be fine-tuned to achieve maximum efficiency. In accordance with the principle of sustainability, green synthesis methods have propelled the development of a range of nanocatalysts that can be applied in various domains, such as the food industry and biofuel production. Simultaneously, heterogeneous catalysis is gaining more attention globally, primarily due to the ease of recoverability of the nanocatalysts and in this context, magnetically retrievable nanocatalysts are indeed a boon for the green synthesis and sustainable production. Nanocomposites combining plasmonic and catalytic components with noble metal nanoparticles (Au and Ag) and doped semiconductor nanostructures have gained interest in recent years owing to their utility in multiple sectors by virtue of their ability to convert sunlight to chemical energy. The current review describes some methods for the synthesis of such nanocatalysts and their applications in diverse domains. Graphical Abstract: (Figure presented.) The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature 2023. -
Greening the click-environmental initiatives in global e-commerce marketing
Convenience and accessibility are the features that drive today's consumers flocking to the retail market. This has given rise to widespread environmental impacts implying that the green concept includes sustainable strategic protocols committed to ethical consumerism and corporate social responsibility. The key operative word is sustainability in all aspects of business from design to delivery. An effective component of strategy is innovation, coupled with transparency. Education of the customers on environmental issues ensures their loyalty and enhances brand image. A Nielson report testifies that consumers are attracted more to products from companies behaving like good corporate citizens providing them with competitive advantages and leading to cost savings. Moreover, positive engagement in legal requirements keeps it ahead of risks associated with environmental laws. Two considerations on strategies are projected upfront. One is Green Branding, meaning thereby a strong and positive association with environmental responsibility in the minds of the buyers, boosting brand loyalty. The other, being Eco-labeling, is a visible proof of environmental benefits. Eco-labels are certifications awarded from recognized organizations. 2025 Thomas K.V., Punam Rattan and Raji Ramakrishnan Nair. Published under exclusive licence by Emerald Publishing Limited. All rights reserved. -
Greening the Portfolio: Investor Insights into Sustainable Development Opportunities in India
Using an investor-centric approach, the present study examines investors' investment patterns toward green financing and factors influencing investor preferences, motivations regarding green investments, decision-making processes, and the development of green finance in the Indian financial sector. The objectives of the paper are twofold: first, using the bibliometric coupling, we identified the thematic clusters within green finance literature, revealing emerging trends and gaps and second, the impact of investors awareness and engrossment levels on their participation in green investments, especially in the Indian financial sector. The quantitative and qualitative methods employed in this study offered insights into how green finance is changing in India and what it means for sustainable development. The findings highlighted an intriguing pattern: youth investors, who have greater engagement and are more inclined toward green finance than their older counterparts. This tendency among the younger generation is not just a one-off event but reflects more significant changes in socioeconomic conditions and a growing awareness of environmental issues. It becomes clear that younger investors are aware of the need to protect the environment and are skilled at assessing the long-term sustainability and financial strength of green investment portfolios. The managerial implications of the study are relevant for academic researchers, practitioners, policymakers, financial regulators, issuers, and investors engaged in green finance. 2025 The Editor(s) (if applicable) and The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd. -
Greening the Workplace: Can Sustainable Practices Reduce Anxiety and Enhance Meaningful Work Engagement?
This academic research examines the relationship between job engagement, green work climate, job-related anxiety, meaningfulness at work within the organization. It draws attention to identify the significant relations among all these factors and highlights the role of a green work climate in promoting meaningful work and alleviating job-related anxiety. The research emphasizes a diverse sample of employees from various organisations using structural modelling to find the mediating roles of job engagement and work meaningfulness in the correlation between organizational practices, environmental sustainability, and employee satisfaction. The study finds that a green work climate significantly enhances meaningful work experiences and reduces job-related anxiety. It emphasises the mediating role of job engagement and work meaningfulness in linking organizational practices focused on environmental sustainability with employee satisfaction. The results of the study give practical understanding for organizations aiming to create resilient and committed workforces. Aligning green initiatives with strategies to boost individual fulfilment and reducing anxiety which can strengthen employee engagement and improve overall organizational outcomes. This study underscores the importance for an integrated approach to workplace management that blends environmental sustainability with employee well-being. It offers valuable contributions to understand how organizational practices can promote sustainability and promote a motivated and satisfied workforce. 2025, Binghamton University Libraries. All rights reserved. -
Greenpreneurship pioneering solutions for climate change: An Indian perspective
In an era marked by pressing global climate challenges, the role of green entrepreneurship, or "greenpreneurship, " has gained paramount significance. The present chapter begins by elucidating the inherent connection between greenpreneurship and climate change, followed the contributions of the greenpreneurs appreciating their efforts to make a difference to the society. The chapter mentions certain skills and traits required by greenpreneurs to run their business. It states the challenges that the greenpreneurs face. The chapter then takes a dive into the realm of greenpreneurship from an Indian perspective. India, with its unique blend of environmental challenges and a burgeoning entrepreneurial ecosystem, presents an intriguing case study. The chapter illustrates how Indian greenpreneurs are contributing to a cleaner, greener future. It states the policies which the government has made to support greenpreneurs in the country. Finally, recommendations are given for existing greenpreneurs, budding entrepreneurs, the public, and the government to collectively drive green solutions. 2024, IGI Global. All rights reserved. -
Grey Wolf Optimization Guided Non-Local Means Denoising for Localizing and Extracting Bone Regions from X-Ray Images
The key focus of the current study is implementation of an automated semantic segmentation model to localize and extract bone regions from digital X-ray images. Methods: The proposed segmentation framework uses a pre-processing stage which follows convolutional neural network (CNN) obtained segmentation stage to extract the bone region from X-ray images, mainly for diagnosing critical conditions such as osteoporosis. Since the presence of noise is critical in image analysis, the X-ray images are initially processed with a grey wolf optimization (GWO) guided non-local means (NLM) denoising. The segmentation stage uses a Multi-Res U-Net architecture with attention modules. Findings: The proposed methodology shows superior results while segmenting bone regions from real X-ray images. The experiments include an ablation study that substantiates the need for the proposed denoising approach. Several standard segmentation benchmarks such as precision, recall, Dice-score, specificity, Intersection over Union (IOU), and total accuracy have been used for a comprehensive study. The proposed architectural has good impact compared to the state-of-the-art bone segmentation models and is compared both quantitatively and qualitatively. Novelty: The denoising using GWO-NLM adaptively chose the denoising parameters based on the required conditions and can be reused in other medical image analysis domains with minimal finetuning. The design of the proposed CNN model also aims at better performance on the target datasets. 2023 Biomedical & Pharmacology Journal. -
Grey Wolf optimization-Elman neural network model for stock price prediction
Over the past two decades, assessing future price of stock market has been a very active area of research in financial world. Stock price always fluctuates due to many variables. Thus, an accurate prediction of stock price can be considered as a tough task. This study intends to design an efficient model for predicting future price of stock market using technical indicators derived from historical data and natural inspired algorithm. The model adopts Elman neural network (ENN) because of its ability to memorize the past information, which is suitable for solving stock problems. Trial and error-based method is widely used to determine the parameters of ENN. It is a time-consuming task. To address such an issue, this study employs Grey Wolf optimization (GWO) algorithm to optimize the parameters of ENN. Optimized ENN is utilized to predict the future price of stock data in 1day advance. To evaluate the prediction efficiency, proposed model is tested on NYSE and NASDAQ stock data. The efficacy of the proposed model is compared with other benchmark models such as FPA-ELM, PSO-MLP, PSOElman,CSO-ARMA and GA-LSTM to prove its superiority. Results demonstrated that the GWO-ENN model provides accurate prediction for 1day ahead prediction and outperforms the benchmark models taken for comparison. 2020, Springer-Verlag GmbH Germany, part of Springer Nature. -
Grit as a protective factor against Nomophobia: Moderating effects of maximizing decision style
The present study examined the role of grit and decision-making styles in predicting nomophobia among young adults, considering gender and educational differences. The study also tested whether decision-making styles moderated the association between grit and nomophobia. Using a cross-sectional ex-post facto correlational design, data were collected using purposive sampling technique from 323 young adults (aged 1725) through online platforms. Participants completed the Three-Dimensional Grit Scale, the Maximizing Inventory, and the Nomophobia Questionnaire. Chi-square test showed that there was an association between gender and education. Mann-Whitney U test showed that men were higher in grit than women. Men and women did not differ in nomophobia or decision-making styles. Kruskal-Wallis ANOVA showed that grit, nomophobia, or decision-making styles did not differ concerning education. Spearmans correlation analysis showed that grit had a moderate positive correlation with satisficing. Nomophobia had a weak negative correlation with grit and a moderate positive correlation with Maximizing. Regression analysis showed grit as a negative predictor and Maximizing a positive predictor of nomophobia. Moderation analysis indicated that Maximizing style weakened the protective effect of grit on nomophobia, accounting for a small but significant variance in outcomes. The study highlights the interactive role of grit and decision-making styles in understanding nomophobia. Findings suggest that grit alone is insufficient as a protective factor against nomophobia. Its effectiveness depends on decision-making styles, with Maximizing acting as a risk enhancer. 2026 Taylor & Francis Group, LLC. -
Ground Truncated Broadband Slotted Circular Microstrip Antenna
In this growing era of wireless technology, large sized devices have become obsolete. In response to the increasing demand for miniaturization over the past decades, microstrip antennas have drawn attention due to its various features like light weight, low cost, small in size and its greater resistivity to shock and vibrations. These can also easily get conformed to any surface. These antennas are also capable of operating at high frequencies, providing large bandwidth and gain by using various techniques slots and truncation of shapes. This report describes the design, simulation, fabrication and measurement results of a microstrip fed Slotted Circular Microstrip Antenna for broadband applications. The antenna was designed for an operating frequency of 2.45 GHz on a double side printed FR4 substrate measuring 55 mm x 55 mm x 1.6 mm with ?r of 4.4. It measured a very large resonant band of 1.3 - 9.05 GHz at a return loss level as low as -36.5 dB at 7.98 GHz. A maximum gain of 2.46 dB was achieved at 2.33 GHz. The enhancement in bandwidth was achieved by truncation in ground and inclusion of thin circular slot. The HFSS version 18.2 software and VNA model Anritsu SA20E were used for simulation and measurement respectively. It is found that the simulation and measurement results agree. 2018 IEEE. -
Groundwater Exploitation in India for Quenching Thirst and Supporting Water for Food: Uncontrolled Anthropogenic Water Demands and Reliance Leading to Eco-crime
The extent of groundwater reliance in India for agriculture and drinking water is enormous, making the country the most groundwater-reliant and exploiting country in the world. This water source supports the drinking water supply and irrigation in the country. The hydrogeological, climatic and legal factors contribute to this extensive reliance on groundwater. These current groundwater legal frameworks based on land-water nexus with a robust property rights framework lead to uncontrolled extraction, resulting in a surge of over-exploited zones in the country. Despite attempts by the courts to regulate water governance using principles like public trust and precautionary principles and the attempts of the State to enact new legislations that move away from this property rights linked land-water nexus regime in groundwater regulation, the current legislative framework that controls groundwater extraction in the State adopts a curative approach. The land-water nexus in groundwater not only exaggerates the inherent socio-economic divide between water users but also threatens the groundwater sources and their sustainability, impairing the ecosystem balance. This chapter examines this dilemma, where the groundwater legal framework-inspired exploitation leads to depletion of groundwater resources and aquifers. This chapter argues that uncontrolled exploitation without concern for the rights of aquifers constitutes an instance of eco-crime, and this anthropogenic encroachment over the ecosystem spaces should be categorised as an element of eco-crime. This chapter adopts a socio-legal approach and provides insights from the experiences gathered from the arid State of Rajasthan, India. 2026 selection and editorial matter, Shanthakumar Sanjeevi and Dhanya S, individual chapters, the contributors. -
Group Key Management Techniques forSecure Load Balanced Routing Model
Remote sensor organizations (WSNs) assume a vital part in giving ongoing information admittance to IoT applications. Be that as it may, open organization, energy limitation, and absence of brought together organization make WSNs entirely defenseless against different sorts of pernicious assaults. In WSNs, recognizing vindictive sensor gadgets and dispensing with their detected data assume a vital part for strategic applications. Standard cryptography and confirmation plans cannot be straightforwardly utilized in WSNs on account of the asset imperative nature of sensor gadgets. In this manner, energy productive and low idleness procedure is needed for limiting the effect of malignant sensor gadgets. In this research work presents a secured and burden balanced controlling contrive for heterogeneous bunch-based WSNs. SLBR shows a predominant trust-based security metric that beats the issue when sensors proceed to influence from extraordinary to terrible state and the other way around; besides, SLBR alters stack among CH. In this way, underpins fulfilling superior security, allocate transmission, and vitality efficiency execution. Trials are driven to calculate this presentation of developed SLBR demonstrate over existing trust-based controlling show, particularly ECSO. The result accomplished appears SLBR demonstrate fulfills favored execution over ECSO as distant as vitality capability (i.e., arrange lifetime considering to begin with sensor contraption downfall and total sensor contraption passing), correspondence overhead, throughput, allocate planning idleness, and harmful sensor contraption mis-classification rate and recognizable verification. 2022, The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd. -
Group Movie Recommendations via Content Based Feature Preferences
International Journal of Scientific & Engineering Research Vol. 4, Issue 2, pp.1-5 ISSN No. 2229-5518 -
Growth and characterization of chalcogenide crystals by vapour method
A horizontal linear gradient two zone furnace was designed and employed to grow single crystals of indium telluride by Physical Vapour Deposition (PVD) method. It was calibrated for various trials including, series and parallel combinations of coils, and set temperatures. Systematic growth runs for chalcogenide crystals were performed by varying the source and growth temperatures. Crystals of different sizes and morphologies were obtained. The morphology and chemical analysis of the grown crystals were investigated by Scanning Electron Microscope (SEM) and Energy Dispersive Analysis using X-rays (EDAX). The hardness of the crystals was estimated using a Vickers microhardness tester. 2011 American Institute of Physics. -
Growth and characterization of glycine potassium nitrate NLO crystals
Single crystals of glycine potassium nitrate were grown using slow evaporation technique. The solutions were prepared mixing glycine with potassium nitrate in different ratios stirring continuously for an hour to get a saturated solution. It was then kept at room temperature for controlled evaporation. Optically clear and well shaped crystals were obtained and these were characterized by (FTIR) studies, EDAX and X-ray powder diffraction. 2011 American Institute of Physics. -
Growth and microindentation analysis of pure and doped Sb2 Se3 crystals
Pure and doped antimony selenide (Sb2 Se3, Sb 2 Se2.8 Te0.2, and Sb2 Se 2.6 Te0.4) crystals have been grown from melt by the Bridgman Stockbarger method. X-ray powder diffraction analysis was carried out to determine the lattice parameters of the grown samples. The morphology of cleavage planes was observed using SEM. Energy dispersive analysis by X-rays (EDAX) was done to find out the chemical composition of the grown samples. Correlation of microhardness with other mechanical characteristics such as toughness, brittleness, and yield strength, has been investigated. The effects of Te doping on the mechanical behaviour and energy gap were also studied on the cleavage faces. Ti?tak.