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Phytofabricated Silver Nanoparticles Derived from Leea crispa Leaf Extract: Antituberculosis and Anticancer Activities
Aqueous extracts of Leea crispa used for producing silver nanoparticles (AgNPs) with the supplementation of the external capping substance, were determined by UV-Visible spectroscopy. The synthesized nanoparticles were examined for their antituberculosis and anticancer activities. The presence of phytoconstituents available for reducing silver ions and to form the AgNPs was confirmed using FTIR analysis. The XRD and TEM examination validated the AgNPs spherical particle shape and size of 15 to 85 nm and their face-centered cubic crystal form. Additionally, the FTIR spectrum revealed variation in the band values in the range 1384.0 to 3419.4 cm-1, respectively, and the EDX noted a strong band at 3 keV induced the presence of metallic silver. The AgNPs exhibited comparatively potential anti-tuberculosis activity (0.2 to 100 g/mL) respectively. Alternatively, various doses of AgNPs, 12.5 to 400 g/mL documented considerable activity towards the human breast cancer cell lines. The percentage of cell viability increased at 12.5g/mL and declined at 400 ng/mL concentrations of AgNPs solution. The AgNPs synthesized from L. crispa exhibited potential activity against life-threatening tuberculosis and cancer cells. 2025, North Carolina State University. All rights reserved. -
Phytogenic CeO2-Sm2O3 nanocomposites with enhanced catalytic activity for reduction of 4-nitrophenol
The phytogenic synthesized CeO2-Sm2O3 is a green, efficient and cost-effective catalyst. The CeO2-Sm2O3 composite was characterized using XRD, FTIR, Raman, TGA, UV-DRS, TEM, FE-SEM and EDAX. The synthesized CeO2-Sm2O3 shows a high catalytic activity for the reduction of 4-nitrophenol in the presence of the sodium borohydride under ambient conditions. This CeO2-Sm2O3 nanocomposite catalyst shows good stability and reusability without much loss in conversion efficiency. CeO2-Sm2O3 possess great prospects in the reduction of nitro organic pollutants in water. 2019 IOP Publishing Ltd. -
Phytogenic synthesis and antimicrobial activity of ZnO nano bow ties (ZnO NBTs): An experimental and computational study
Phytogenic synthesis is a sustainable and eco-friendly approach for producing nanoscale particles, using biological entities such as plants and their byproducts. In this study, Allium sativum extract was selected as a capping and reducing agent due to the presence of phytochemicals such as allicin, diallyl disulfide (DADS), vinyl dithiins, ajoene (E- and Z-ajoene), diallyl trisulfide (DATS), and thiol (sulfhydryl) groups. The resulting ZnO Nano Bow Ties (ZnO NBTs) were characterized using FE-SEM, XRD, EDX, DLS, zeta potential, FTIR, and UV-Vis spectroscopy to evaluate the size, morphology, and crystallinity. The obtained XRD, SEM, and DLS results suggested an average longitudinal length of ?372 nm with a maximum lateral width of ?64 nm and a Bow Tie shape. Gas Chromatography-Mass Spectroscopy (GC-MS) analysis was employed to elucidate the prominent phytochemical constituents of the Allium sativum extract. Preliminary antibacterial assays reveal significant inhibition zones and growth inhibition effects against gram-negative bacteria of both Klebsiella pneumoniae and Escherichia coli, suggesting the promising antimicrobial potential of these ZnO NBTs. Monte Carlo simulations revealed that the cone-shaped ZnO NBTs bind strongly to the active sites of the target proteins with binding affinities of ?36.20 and ?32.14 kcal/mol for Klebsiella pneumoniae and Escherichia coli respectively, which correlates with their activities. The ZnO NBTs complexes formed stronger hydrophobic interactions and hydrogen bonds with amino acid residues of Escherichia coli than with Klebsiella pneumoniae. This integrated experimental and computational study underscores the potential of the use of ZnO NBTs as a sustainable and effective strategy to combat bacterial pathogens. The findings of this study indicate that efficient morphology (shape) is a major contributor to the protein binding affinities of ZnO NBTs, with promising implications for the design of antibacterial drugs in nanomedicine. 2024 The Authors -
Phytonanotechnology for the Removal of Pollutants from the Contaminated Soil Environment
Over-consumption of chemically synthesized components aids country toward industrial revolution, which symbolizes for economic prosperity. On the other hand, industrial revolution is responsible for soil pollution, due to its toxic effluents. The main source of soil pollutants includes fertilizers, pesticides, untreated wastewater used for irrigation, land application of sewage sludge due to rich organic content, petroleum leakage and leaching from landfills, etc. The crops grown out of this contaminated soil make the plant to changes its nutritional valve, bioaccumulates the chemicals, and also hinder with its vigor. Studies proved that prevent measures should prioritize in minimizing the adverse effect on the environment. Use of Phyto-nanotechnology in wastewater treatment, as nano fertilizer, nanotechnology-based biocontrol agents, and other areas before the hazardous chemicals entering soil. Green synthesized nanoparticles assist as excellent bio remedial agents as they are rich in biomolecules like carbohydrates, proteins, lipids, and several enzymes also deter-mine its efficacy of action. Hence, this chapter highlights the various eco-friendly and inexpensive products or formulation used for removal of toxic and recalcitrant materials which are dreadfully risky to human health. The Editor(s) (if applicable) and The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd. 2022. -
Phytoremediated nickel-enriched biochar composite for high-performance supercapacitors
Renewable and sustainable high-performance energy storage devices are essential to meet the needs of next-generation power sources. This study explores the use of the hyperaccumulator Dracaena trifasciata (snake plant) grown in manipulated soil (with Nickel) to explore a cost-effective, sustainable phytoremediation technique for synthesizing high-performance biocarbon electrode material. The synthesized Nickel-Biochar (Ni-Biochar) is treated with acid to enhance its processability and is then combined with an optimal amount of Polyaniline (PANI) to improve charge conductivity. The Ni-Biochar/PANI electrode demonstrates excellent electrochemical performance, with a specific capacitance of 638 F g?1 at 0.5 A g?1 in a three-electrode cell and notable stability, retaining 92 % of its capacity after 10,000 cycles. Additionally, the asymmetric supercapacitor made with Ni-Biochar/PANI achieves a specific capacitance of 163 F g?1 in a 3 M KOH solution. The Ragone plot for this device reveals an energy density of 57 Whkg?1 and a power density of 1259 W kg?1. The device also shows outstanding long-term cyclic stability, retaining 90 % of its capacity after 5000 charge-discharge cycles. This high level of performance underscores the potential of utilizing plants as green carbon sources, which can be combined with various metal oxides and conducting polymers to produce hybrid nanomaterials, making them highly promising for sustainable supercapacitor electrode applications. 2025 Elsevier Ltd -
Phytotoxins: Terrestrial Plant Sources
Plants produce a wide variety of phytochemicals during biochemical reactions. Plant secondary metabolites (PSMs) are specialised metabolites or phytochemicals that are produced by plants in response to biotic and abiotic stresses or as a by-product of metabolism. PSMs are needed by the cells of the plant to interact with its environment and are produced in very small concentrations. They have various therapeutic effects and are used as medication in various conditions. However, the difference between therapeutic and toxic levels of these compounds is so low that when administered in excess, they can cause adverse conditions. These toxic PSMs are also known as phytotoxins. Phytotoxins are highly versatile in their mode of toxicity, chemical composition, and structure. The major groups of phytotoxins that have been categorised are alkaloids, terpenoids, glycosides, non-protein amino acids, glucosinolates, cardenolides, tannins, phenolics, flavonoids, and phytoecdysteroids. These phytotoxins have several toxic effects like allergenic, pesticidal, hallucinogenic, and allelochemical and may even cause fatalities. The effects of these phytotoxins in humans range from the disturbance in the metabolic pathways taking place in various organs to adverse conditions like cytotoxicity, neurotoxicity, and carcinogenicity. This chapter discusses in detail the various categories of phytotoxic compounds from land plants and their major biological activities. The Editor(s) (if applicable) and The Author(s), under exclusive license to Springer Nature Switzerland AG 2025. -
Pi-MnO2 decorated poly-3-thienylacetic acid on carbon fiber paper for electrochemical synthesis of 2-formyl-thiophene
Sustainable and environmentally benign synthesis methods have captured researchers' minds in recent times and have contributed a lot towards the green synthesis of organic compounds. This work presents an efficient green method for synthesizing 2-formyl thiophene using a newly designed Pi-MnO2 deposited on poly-3-thienylacetic acid coated Toray carbon fiber paper (PThAA-Pi-MnO2-TCFP) electrode. Cyclic voltammetry (CV), chronoamperometry (CA) and bulk electrolysis (BE) techniques were employed for the optimization and synthesis of 2-formyl thiophene and the product obtained was characterized by proton nuclear magnetic resonance (1HNMR) spectroscopy. The efficacy of the developed electrode was examined by different electrochemical and physicochemical studies. It is an intriguing approach for the 4-acetamido-TEMPO (4-ACT) mediated, PThAA-Pi-MnO2-TCFP catalyzed electro-oxidation of thiophene-2-ylmethanol (TM). This method is handy and reasonably practical since the developed electrocatalyst is inexpensive, and the synthesis is environmentally benign. Hence it is a highly efficient method for synthesizing 2-formyl thiophene, a much sought-after starting material in pharmaceuticals, agrochemicals, and cosmetics. 2023 -
PICTURE PROCESSING ON ISOMETRIC FUZZY REGULAR ARRAY LANGUAGES
Isometric array grammar is one of the simplest model to generate picture languages, since both sides of its production rule have the same shape. In this paper, we have introduced isometric fuzzy regular array grammars to generate isometric fuzzy regular array languages and discussed its closure properties. Also, the relation between isometric fuzzy regular array grammar and boustrophedon fuzzy finite automata has been discussed. Moreover, we study the relation between two dimensional fuzzy regular grammars with returning fuzzy finite automata and boustrophedon fuzzy finite automata. Further, the hierarchy results of these three classes of languages have been discussed. 2024 KSCAM. -
Pilgrimage model of short learning programmes in a doctoral education: Enhancing research competency
Higher education has recently witnessed a paradigm shift in pedagogical approaches, with an increasing emphasis on acquiring skills and competencies. This chapter explores the application of the Pilgrimage Model of Short Learning Programmes (SLP) in doctoral education, aiming to enhance research skills among doctoral students. Inspired by spiritual journeys, this model fosters deep learning by encouraging short-term, self-directed and targeted expeditions into various research areas. By embarking on these short learning journeys, students acquire new skills, broaden their knowledge and cultivate intellectual curiosity. This approach transforms the traditional doctoral experience and promotes self-directed learning and holistic development. The study contributes to the pedagogical field by exploring its efficacy in advanced academic settings. Through the Pilgrimage Model, doctoral programmes can transcend traditional thesis-based evaluations, offering a more comprehensive engagement with knowledge and nurturing skills crucial for academic and professional success. 2025, IGI Global Scientific Publishing. All rights reserved. -
Pilot Study on Adoption and Usage of AI in Food Processing Industry by UTAUT2
Artificial intelligence (AI) improves the efficiency of work and effectiveness in the output. Currently, food processing industries have started using AI in their business operations. It is crucial to have an in-depth understanding of the adoption and usage of AI systems in food processing industries. Therefore, this paper validates the Unified Theory of Acceptance and Use of Technology (UTAUT2) in the context of the food processing industry. This study applied AI to the food processing industries in the Bengaluru region. The study's objective is to build a clear vision of the factors that affect the user acceptance and behaviour intention of the user by pilot test. The pilot survey collected 62 responses through the questionnaire. The respondents were employees from the food processing industries in Bengaluru. The reliability test of the questionnaire was done by using Jamovi 2.3.16 software. The questionnaire was tested in three ways: Cronbach Alpha, McDonalds Omega, and Inter-rater reliability. The results of the entire test were reliable since overall Cronbach Alpha of 0.874, which is within the range of 0.800.90, and considered good internal consistency. Similarly, McDonalds Omega is within the range of 0.800.90, which is excellent consistency, and Inter-rater reliability is within the range of moderately acceptable scores from 50 to 75%. 2023, The Author(s), under exclusive license to Springer Nature Switzerland AG. -
Pink floyd's time: An aural metanarrative exploring time through form, lyric, and musical arrangement
The inability of language to capture the essence of time is a crisis that has been expressed by philosophers starting from St. Augustine to Paul Ricoeur. Appearing on their seminal album, Dark Side of the Moon, Pink Floyd's Time is a profound artistic attempt which transcends this language barrier by using music to bring the listeners to a more direct confrontation with time; doing so by juxtaposing time as calibrated and as experienced through the music and the lyrics, and by making the reader experience time-based affects such as impatience, expectation, monotony, and such. As a direct function of song, time is experienced as musical time in the song, thereby ensuring that the listener's confrontation with time is immersive, with lyrics that describe the nature of experienced and calibrated time working synchronously with the music to complete the image. In the context of its release in 1974, the 6:52 minute song was in engagement with the concept of time as well, in that it was among the pioneering ones which redefined radio broadcast time beyond the standard 3 minutes afforded to popular music tracks, with the commercially preferred listener span in mind. The matter of time thus becomes a multi-layered formal engagement in the song, at the level of lyric, recording, music and listening, thereby making possible an image of time that is polished and rounded. These aural, lyrical and production-based concepts will be addressed and expanded upon to show how Pink Floyd's Time functions as a metanarrative in how it uses and invokes the elements of time to talk about time. AesthetixMS 2020. -
Pioneering Security in Healthcare: Reversible Data Hiding for ECG Signals and Patient Information
A population in large across worldwide grieve from cardiac illnesses, leading towards an increase in the popularity of telecardiology. Consequently, a significant quantity of electrocardiogram (ECG) signals and sensitive patient information are communicated over the Internet. Using electrocardiogram (ECG) signals as the host medium, this system safeguards the patient's personal information. Nevertheless, it was not possible to replicate the original electrocardiogram (ECG) signal entirely. Therefore, any alterations that occur on EKG have the potential to lead physicians to make an inaccurate diagnosis, which is something that the patient cannot accept. According to the fundamental viewpoint presented in this study, reversible hidden data must completely hide the patient information and ECG signals when they are present. Discreet patient data leading to their personal attributes should be incorporated into the electrocardiogram which is ECG signal while preserving a high level of visibility. On the other hand, in order to safeguard the confidentiality of the patient and the ECG signal, we employ a single built-in encryption mechanism. The ECG instance which is watermarked is recreated in detail. The findings presented herein provide evidence that the proposed method can be reversed. 2026 IEEE. -
Piperine, an alkaloid of black pepper seeds can effectively inhibit the antiviral enzymes of Dengue and Ebola viruses, an in silico molecular docking study
Ebola and Dengue are the critical diseases caused by RNA viruses, especially in the tropical parts of the globe, including Asia and Africa, and no prominent therapeutic options are available so far. Here, an effort was made to evaluate the efficacy of black pepper (Piper nigrum L.) alkaloid Piperine as a potential drug through computational docking simulation. Eight structurally essential proteins of Dengue and Ebola virus were selected as in silico docking targets for Piperine. Absorption, Distribution, Metabolism, and Excretion profile showed that Piperine was safe and possessed significant drug-like properties. Molecular dynamic simulation and binding free energy calculation showed that Piperine could inhibit Methyltransferase (PDB id 1L9K) of Dengue and VP35 Interferon Inhibitory Domain (PDB id 3FKE) of Ebola virus in comparison with the commercial antiviral Ribavirin. Furthermore, statistical analysis based on multivariate and clustering approaches revealed that Piperine had more affinity towards viral proteins than that of Ribavirin. 2020, Indian Virological Society. -
Piracy in fashion business and protection for the creativity of designers: A comparative study /
The fashion business is one of the fastest-paced industries today. Beyond the simple act of selling clothing, a company's ability to create and capitalize on a distinctive brand is a crucial factor in achieving sustained success in this industry. When a style or brand becomes well-known, many others copy it mindlessly, which causes a huge loss for the people who made the original products. We also encounter fake products from well-known brands very often, which not only ruin the fashion industry but also pose a serious risk to the economy. Fashion nowadays thus goes beyond only clothing and accessories. The substantial expansion of the fashion industry is significantly influenced by intellectual property. “Intellectual property law may be used to safeguard the originality of a wide variety of creations, including those in the fashion industry. The types of intellectual property and their applicability to the fashion industry have only been touched on briefly. The purpose of this dissertation is to educate the reader about current fashion trends, hotly debated problems, and the importance of intellectual property rights in the fashion business”. -
Pixelated Pasts: Deepfakes as Instruments of Counter-memory in India
A new era of digital memory invites society to confront the silences of the archive and rethink the politics of collective remembrance. 2025, Economic and Political Weekly. All rights reserved. -
Pixels to Pathogens: A Deep Learning Approach to Plant Pathology Detection
It is known that accurately identifying, early and timely treatment and elimination of the plant diseases is essential for crop protection and healthy crop growth. In traditional or conventional methods, identification and classification were done by testing in laboratories or through visual inspection by farmers. Now going through the testing in labs is very time consuming, while the visual inspection requires enough experience and knowledge. To solve this problem, our study proposes a robust plant pathogen detection method based on a Deep Learning approach on a large dataset containing about 38 categories of different species like Maize, Potatoes, Tomatoes, Bell Pepper, Peach, Strawberry etc. and diseases like rust, molds, blight (late and early). This crop disease detection model leverages the power of the EfficientNetB3 architecture, a state-of-art convolutional neural network(CNN). The main backbone is served by EfficientNetB3and then it is fine-tuned using different hyperparameters and other regularization techniques like weight decay, dropout method and optimizers like RAdam,to enhance the overall accuracy coupled with dynamic learning rate adjustment. In the testing set of the dataset, the proposed model shows encouraging accuracy of about 99.25%, high precision of about 97.35%. A thorough evaluation of the model's functionality is given by the help of training and validation line chart and loss chart that gives the in-depth information on the prediction. And then we implemented the detection model in our mobile application whose interface screen shots are given below. In the application the image can be taken by camera or fed from folders and it will detect the type of disease. 2024 IEEE. -
Place-based strategies, multichannel merger, and context-driven alerts for engagement with mobile marketing
Mobile marketing is essential for timely, personalized communication in the digital world. Engagement is increased by location-based strategies like geofencing and context-driven notifications. Integrating social media improves ties with customers. In the digital age, multi-channel integration guarantees a smooth and personalized experience. As per the authors, this chapter explores how location-based suggestions, context-driven notifications, and multi-channel integration enhance client connections while highlighting the significance of geolocation data for targeted content. For context-driven notifications to be effective, helpfulness and privacy must be balanced. Companies create stronger relationships with their consumers and improve the customer experience, which motivates both present and new customers to engage and connect with their brand. An analysis is conducted on the changing field of mobile marketing, emphasizing the use of location-based tactics, multi-channel integration, and context-driven notifications to increase user engagement. 2024, IGI Global. All rights reserved. -
Planetarism and eco humanism in the buddhist beat bards allen ginsberg and gary snyder an interdisciplinary thematic study on their literature philosophy and ecological perspectives
The Beat Generation, also known as the Beat movement, were a group of American writers who emerged in 1950s. Among its most influential members were Allen Ginsberg, Gary Snyder, Jack Kerouac, William Burrough, William Carlos Williams and Lawrence Ferlenghetti. What could be loosely described as the underlying philosophy was visionary enlightenment, Zen Buddhism, environmentalism and Amerindian culture. The Beat Generation invented a literary collage movement as a counter-brain wash method for reversing effect of Mass media-Military-Industrial-Communist-Capitalist-CIA-KGB disinformation reality image bank. A common theme that linked them together was a rejection of the newlineprevailing American middle class values, deterioration of the Planet s health, the newlinepurposelessness of modern society and the need for withdrawal and protest. The Beats have tried to break the restraints imposed on the western man s mind by the official ways of thinking. They find the official morality unacceptable and tried to arrive at metaphysical and ethical enlightenment through the methods adopted by the oriental thinkers like Gauthama Buddha, and Zen ascetics. They begin with the problems the western civilization is encountering, like the one of war and ecological degradation and use the concepts of oriental civilizations to find causes and remedies of the miseries people and the planet have been ecountering. The mechanistic paradigm underlying the industrial society gives way to the newlineviirealization that we belong to a living, self-organizing cosmos. General systems newlinetheory, emerging from the life sciences, brings fresh evidence to confirm ancient newlineindigenous teachings; the earth is live, mind is pervasive, all beings are our relations. newlineThe Beats rediscovered this perennial truth which changed our views about the planet newlineand its life systems. The beats were a product of the Second World War and of the cold war. -
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Planetary Ball Milling and Tailoring of the Optoelectronic Properties of Monophase SnSe Nanoparticles
Downscaling of tin monoselenide (SnSe) samples to the nanometer regime (~8020nm) without affecting the structure, homogeneity, and optoelectronic properties was carried out by high-energy planetary ball milling (BM). The milling rate was varied from 200rpm to 800rpm by adopting a dry and wet-grinding top-down approach on customized stoichiometric SnSe precursors. The degree of crystallinity was assessed by powder x-ray diffraction (PXRD) and selected area electron diffraction. The lattice parameters, a = 4.435 b = 11.498 and c = 4.148 of the nanoparticles were calculated from the PXRD data. Energy-dispersive x-ray analysis confirmed the chemical homogeneity (49.88:51.12 at.%) of the samples. The effects of rotational velocity as well as mode of grinding on the morphology and the size of SnSe powders were investigated using electron microscopes. The direct optical transition with band gap varied from 1.75eV to 2.28eV was elucidated from UV-Vis-NIR data. Photoluminescence revealed an increase in the intensity of the emission peak at 462.97nm with angular velocities for both types of grinding. The variation of electrical resistivity (36107 ? cm) and mobility (3.451.12 cm2/Vs) with rotational speed was calculated for all the samples. The results obtained for the ball-milled nanoparticles pave the way towards the reduction of particle size, formation of stable morphology, and appreciable crystalline structure quality suitable for solar cell absorbers. Graphical Abstract: [Figure not available: see fulltext.] 2023, The Minerals, Metals & Materials Society.