Publications by authors named "Pramod Rai"

Article Synopsis
  • Boron nanoparticles (BNNPs) can harm freshwater microalgae when combined with pollutants like Diclofenac (DCF), requiring investigation into their joint effects.
  • Exposure to varying concentrations of BNNPs alongside a fixed amount of DCF led to a noticeable decrease in algal cell viability over 72 hours.
  • The study indicated that higher combinations of BNNPs and DCF resulted in increased oxidative stress, reduced photosynthetic efficiency, and overall toxic effects on algal health.
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Plant architecture is a crucial determinant of crop yield. The number of primary (PB) and secondary branches (SB) is particularly significant in shaping the architecture of Indian mustard. In this study, we analyzed a panel of 86 backcross introgression lines (BCILs) derived from the first stable allohexaploid Brassicas with 170 genome-specific SSR markers to identify associated markers with higher PB and SB through association mapping.

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Unremitting decline in crop productivity and nutrient recovery are resulted due to dearth of need based fertilizer recommendation over blanket application apart from nitrogen pollution in several means. An advance nutrient management tactic, GreenSeeker (GS) has developed and used in many field crops following the principle of four "R" (right source, right amount at right time, and place) nutrients stewardship technologies. But no studies have been conducted for evaluation of GS in mustard for improving productivity, profitability and nutrient use efficiency (NUE) while minimizing environmental risks.

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Dearomative cycloaddition is a powerful technique to access sp-rich three-dimensional structural motifs from simple flat, aromatic feedstock. The building-up of unprecedentedly diverse polycyclic scaffolds with increased saturation and stereochemical information having various applications ranging from pharmaceutical to material sciences, is an essential goal in organic chemistry. However, the requirement of large energy inputs to disrupt the aromaticity of an arene moiety necessitates harsh reaction conditions for ground state dearomative cycloaddition.

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Article Synopsis
  • Concerns about engineered iron oxide nanoparticles (FeO NPs) arise due to their potential adverse effects on human health and the environment, particularly their impact on soil and water quality.
  • Studies show that the transport and behavior of FeO NPs are influenced by factors like pH, ionic strength, and the presence of humic acid, with notable colloidal instability at neutral pH but improved stability in acidic and basic conditions.
  • Experiments demonstrated that higher ionic strength can hinder NP transport in water due to electrostatic interactions, while in porous media, transport may be affected by ionic compression, highlighting the complexity of FeO NP behavior in various environmental contexts.
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Metal oxide nanoparticles (NPs) are considered among the most prevalent engineered nanomaterials. To have a deeper understanding of the mode of action of multiple metal oxide nanoparticles in mixtures, we have used a unicellular freshwater microalga Scenedesmus obliquus as a model organism. The toxicity of silicon dioxide (SiO), iron oxide (FeO), and zinc oxide (ZnO) NPs was studied individually as well as in their binary (SiO + FeO FeO + ZnO, and ZnO + SiO) and ternary (SiO + FeO + ZnO) combinations.

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Oilseed brassica has become instrumental in securing global food and nutritional security. , colloquially known as Indian mustard, is cultivated across tropics and subtropics including Indian subcontinent. The production of Indian mustard is severely hampered by fungal pathogens which necessitates human interventions.

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Due to their remarkable properties, the applications of carbon-based nanomaterials (CNMs) such as graphene and functionalized multi-walled carbon nanotubes (f-MWCNTs) are increasing. These CNMs can enter the freshwater environment via numerous routes, potentially exposing various organisms. The current study assesses the effects of graphene, f-MWCNTs, and their binary mixture on the freshwater algal species Scenedesmus obliquus.

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White mold commonly known as Sclerotinia sclerotiorum causes stem rot disease and has emerged as one of the major fungal pathogens of oilseed Brassica across the world. In the present study, consistently virulent S. sclerotiorum isolate "ESR-01" was sequenced and an assembly size of ~ 41 Mb with 328 scaffolds having N50 of 447,128 was obtained.

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The dearomative cycloaddition reaction serves as a blueprint for creating sp-rich three-dimensional molecular topology from flat-aromatic compounds. However, severe reactivity and selectivity issues make this process arduous. Herein, we describe visible-light energy-transfer catalysis for the intermolecular dearomative [4 + 2] cycloaddition reaction of feedstock naphthalene molecules with vinyl benzenes.

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Unlabelled: L. (white mustard) is recognized for carrying host resistance against several biotic stresses including, , which is responsible for blight disease in cultivated Brassica. However, another cultivated has a dearth for genetic resistance for these stresses due to its narrow genetic base.

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1,2-Dicarbofunctionalization of unactivated olefin has been reported under photoredox/nickel dual catalysis. The mildness of the visible-light-mediated reaction allows the use of various alkyl and aryl electrophiles with several sensitive functional groups. The protocol was equally applied for late-stage diversification of drugs and biologically active molecules.

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An enantioselective -C(sp)-H functionalization of ketones with 1,6-enynes is demonstrated photoredox/cobalt dual catalysis. The method exhibits high yields, functional group tolerance, and selectivity. Mechanistic studies suggested the operation of visible-light mediated low-valent cobalt complex generation, intramolecular cyclization, -C-H bond insertion, and reductive elimination as the key mechanistic steps.

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2,4,6-trinitrotoluene (TNT), a nitro-aromatic explosive commonly used for defense and several non-violent applications is contributing to serious environmental pollution problems including human health. The current study investigated the remediation potential of a native soil isolate, i.e.

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Nano silica (nSiO), induces potential harmful effects on the living environment and human health. It is well established that SiO facilitates the co-transport of a variety of other contaminants, including heavy metals and pesticides. The current study focused on the systematic evaluation of the effects of multiple physicochemical parameters such as pH (5, 7, and 9), ionic strength (10, 50, and 100 mM), and humic acid (0.

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Article Synopsis
  • Silicon dioxide nanoparticles (nSiO) are widely used and released into the environment, affecting their behavior and potential ecological impacts.
  • The study examines how factors like pH, ionic strength, and humic acid influence the stability and aggregation of nSiO in water.
  • Findings indicate that these parameters significantly affect nSiO sedimentation and transport, emphasizing the role of shear forces and various water systems on their distribution in the environment.
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The field of asymmetric catalysis has been developing to access synthetically efficacious chiral molecules from the last century. Although there are many sustainable ways to produce nonracemic molecules, simplified and unique methodologies are always appreciated. In the recent developments of asymmetric catalysis, chiral-at-metal Lewis acid catalysis has been recognized as an attractive strategy.

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The ongoing Pandemic of COVID-19 caused by Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) has severely stressed the worldwide healthcare system and has created dangerous shortages of personal protective equipment (PPE) including N95 filtering facepiece respirators (FFRs). Even though suppliers struggled to meet global demand for N95 masks at an unprecedented level, a shortage of FFR appears as a significant factor in the transmission of the disease to frontline workers. CDC, USA has mentioned that FFR decontamination and reuse may be necessary during times of shortage to ensure guaranteed availability.

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Herein, we describe the enantioselective C(sp)-H bond functionalizations of 2-alkyl azaarenes using a cooperative dual Lewis acid catalysis. An achiral Lewis acid activates the unactivated azaarene partner without the need for a strong base. Orthogonally, a chiral-at-metal Lewis acid catalyst enables LUMO lowering and induces chirality.

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Compositional analysis of gallstone samples has been carried out, using Laser-Induced Breakdown Spectroscopy (LIBS) and Photoacoustic Spectroscopy (PAS). Classification of gallstone has been made on the basis of intensities of the inorganic and organic constituents present in the LIBS spectra. A regression plot is drawn between LIBS spectral intensities of organic & inorganic elements and the stoichiometric ratio of Cholesterol, Bilirubin and Calcium Carbonate.

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Background: Although self-affirmation has been reported to enhance well-being and other positive life outcomes in normal adults, little is known about its capacity to restore and preserve well-being in adults with depressive tendencies. The current study attempts to expound the restoring and preserving capacity of self-affirmation for well-being in Indian adults with non-clinical depressive tendencies.

Participants And Procedure: The study used a sequential research design.

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is a major oilseed crop in tropical and subtropical countries, especially in south-east Asia like India, China, Bangladesh, and Pakistan. The widespread cultivation of genetically similar varieties tends to attract fungal pathogens which cause heavy yield losses in the absence of resistant sources. The conventional disease management techniques are often expensive, have limited efficacy, and cause additional harm to the environment.

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2,4,6-trinitrotoluene or TNT, a commonly used explosive, can pollute soil and groundwater. Conventional remediation practices for the TNT-contaminated sites are neither eco-friendly nor cost-effective. However, exploring bacteria to biodegrade TNT into environment-friendly compound(s) is an interesting area to explore.

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Biodegradation ability of a native bacterial species strain WS2-R2A-65, isolated from nitramine explosive-contaminated effluent, for octogen (HMX) and hexogen (RDX) under aerobic condition has been explored in this study. Scanning electron microscopy indicated that the isolate WS2-R2A-65 retained its morphology both in the presence and absence of HMX or RDX. During an incubation period of 20 days, the isolate cometabolically degraded 78 and 86% of HMX and RDX with initial concentrations 6 and 60 mg L, respectively.

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The field assessment technique to evaluate the plants with a fungal phytopathogen for their tolerance to the disease is one of the crucial steps in dissecting their genetic control and in developing the resistant crop varieties. The objective behind this study was to develop and evaluate a field-based non-injury method of inoculation technique for Sclerotinia stem rot (SSR) in oilseed Brassica, caused by Sclerotinia sclerotiorum (Lib.) de Bary.

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