Browsing by Author "Partha Sarathi Tripathy"

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Microbial-derived metal nanoparticles: Applications and perspective
(Elsevier, 2024) Soumya Shephalika Dash; Sagnika Das; Gouranga Saw; Partha Sarathi Tripathy; Kaushik Kumar Das; Subrata Goswami
Microbial-derived metal nanoparticles (MtNPs) have garnered significant attention as a novel class of nanomaterials with diverse applications across various domains. These nanoparticles, synthesized through the reduction of metal ions by a plethora of microorganisms including bacteria, fungi, algae, and viruses, have sparked significant interest due to their unique physicochemical properties and versatile applications. The unique synthesis mechanisms employed by microorganisms enable precise control over the size, shape, and composition of the resulting nanoparticles, offering advantages over conventional chemical synthesis methods. MtNPs exhibit exceptional catalytic, optical, and antimicrobial properties, making them promising candidates for applications in catalysis, sensing, imaging, and drug delivery. They also exhibit remarkable efficacy in environmental remediation, offering sustainable solutions for pollution control, wastewater treatment, and soil restoration. In agriculture, MtNPs offer avenues for enhancing crop yield, nutrient uptake, and pest management, thereby contributing to food security and sustainable agriculture practices. Additionally, their biocompatibility and low toxicity make them suitable for biomedical applications, including cancer therapy, wound healing, and diagnostic imaging. Furthermore, the sustainable and eco-friendly synthesis routes employed in their production align with the growing emphasis on green nanotechnology. Nevertheless, the burgeoning field of MtNPs holds great promise for addressing pressing societal and environmental challenges while fostering innovation in nanotechnology, but challenges such as scalability, reproducibility, and standardization remain, necessitating further research and development efforts. © 2025 Elsevier Inc. All rights are reserved, including those for text and data mining, AI training, and similar technologies.
MicroRNAs in plant-insect interaction and insect pest control
(Elsevier, 2024) Subrata Goswami; Partha Sarathi Tripathy; Manish Gadekar; Maksud Hasan Shah; Soumya Shephalika Dash; S.K.M.D. Ajaharuddin
Plants interact with insects in a myriad of complex ways. Plants are posed as inevitable targets to several phytophagous insects and therefore have developed constitutive and induced defense mechanisms in response to herbivory. MicroRNAs (miRNAs) are a group of Small noncoding RNAs (sRNAs) regulating gene expression in eukaryotes either by degrading the complementary mRNA transcripts or through translational repression. During plant-insect interactions, both of them take advantage of miRNA-mediated regulation of key physiological processes for manipulating each other. miRNAs have been reported to provide epigenetic means of plant immunity against insect herbivores and also regulate offense strategies in many insects. Research on these micromanagers of gene expression shows the involvement of many miRNAs regulating plant growth and development genes, transcription factors, transmembrane receptors, and phytohormone signaling in plants in complex ways during insect herbivory. miRNAs, along with the elements of miRNA-biogenesis machinery, have a substantial influence on plant defense against insect pests. The irrefutable involvement of miRNAs in controlling the translational machinery of several genes during various biotic stress responses and developmental conditions makes them promising targets for agro-biotechnological approaches addressed to crop protection. They are also an important regulator of many key physiological processes in insects, and targeting insect miRNAs through anti-mRNA or mRNA mimics could pave the way for the development of innovative pest management strategies. Artificial miRNAs (amiRNAs) mediated RNA silencing strategies, plin-amiRs (plant-expressed insect pre-amiRs) are increasingly being probed for combatting insect pests in an eco-friendly and inheritable manner. © 2024 Elsevier Inc. All rights reserved.