Publications by authors named "Ranjith K"

Energy scarcity and environmental pollution have prompted research in hydrogen generation from solar to develop clean energy through highly efficient, effective, and long-lasting photocatalytic systems. Designing a catalyst with robust stability and an effective carrier separation rate was achieved through heterostructure assembly, but certain functionalities must be explored. In this paper we designed a ternary heterostructure assembly of CdS nanospheres wrapped with hierarchical shell walls of layered MXene-tagged MoS nanoflakes, forming intimate interfaces through an in-situ growth process.

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Introduction: Costoclavicular brachial plexus block has become a procedure of choice for surgical anaesthesia or analgesia in upper limb surgery. The technique is not standardised yet, and two approaches are currently employed: the medial and lateral approach. Our study aims to compare the two approaches in terms of performance time and patient-specific clinical outcomes.

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Article Synopsis
  • - The survey aimed to assess parents' attitudes, knowledge, and perceptions regarding myofunctional appliances in Chennai through a web-based questionnaire involving 500 participants.
  • - Results revealed that a significant majority (79.8%) of parents recognize skeletal problems, with about 70% willing to recommend myofunctional treatments and 69% acknowledging their importance for corrections.
  • - The study concluded that while most parents are informed about functional appliances and skeletal issues, there is a need for increased awareness to properly diagnose these problems at the right age.
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Ranjith K.The objective of this study was to compare the efficacy, safety, pharmacokinetics, and immunogenicity of a proposed bevacizumab biosimilar (DRL_BZ) with the innovator Avastin (reference medicinal product [RMP]) in patients with nonresectable metastatic colorectal cancer (mCRC) over a period of 9 months and advanced nonsquamous non-small cell lung cancer (NSCLC) over 6 months. The study was planned as a randomized, double-blind trial.

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  • The study focuses on creating effective electrocatalysts for oxygen evolution reactions (OER) and urea oxidation reactions (UOR) using heterostructure nanocubes made from cobalt oxysulfide (CoOS) and cobalt iron layered double hydroxide (CoFe).
  • A hydrothermal method is used for synthesizing these nanocubes, which enhances their electrocatalytic performance by altering electronic structures through specific interface interactions.
  • The optimal catalysts demonstrate strong OER and UOR activities with cell voltages of 1.63 V and 1.56 V respectively, and they show durability in an alkaline electrolyzer setup.
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Dual-functional S/N (sulfur and nitrogen) doped graphene-tagged zinc oxide nanograins were synthesized for bioimaging applications and light-dependent photocatalytic activity. Applying the green synthesis approach, graphene was synthesized from kimchi cabbage through a hydrothermal process followed by tagging it with synthesized zinc oxide nanoparticles (ZnO-NPs). The 2D/0D heterostructure prepared by combining both exhibited exceptional advantages.

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Designing a heterostructure nanoscale catalytic site to facilitate N adsorption and photogenerated electron transfer would maximize the potential for photocatalytic activity and N reduction reactions. Herein, we have explored the interfacial TiO nanograins between the TiCTMXene-WS heterostructure and addressed the beneficial active sites to expand the effective charge transfer rate and promote sonophotocatalytic N fixation. Benefiting from the interfacial contact and dual heterostructure interface maximizes the photogenerated carrier separation between WS and MXene/TiO.

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In this work, we initially prepared layered lithium titanate (LiTiO) using a solid-state reaction. Then Li of LiTiO were acid-eluded with Hydrochloric acid to obtain hydrated titanium oxide (HTiO). Different weight percentages (50%, 60%, 70%, 80%, and 90%) of the as-prepared HTiO were deposited on a conductive reduced graphene oxide (rGO) matrix to obtain a series of rGO/ HTiO composites.

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Biofilms confer several advantages to the organisms associated with them, such as increased resistances to antibacterial and antifungal compounds compared to free living cells. Compared to monomicrobial biofilms involving a single microorganism, biofilms composed of microorganisms affiliated to bacterial and fungal kingdoms are predominant in nature. Despite the predominance of polymicrobial biofilms, and more so mixed polymicrobial biofilms, they are rarely studied.

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Quantum dots (QDs) have an unparalleled ability to mimic true colors due to their size-tunable optical and electronic properties, which make them the most promising nanoparticles in various fields. Currently, the majority of QDs available in the market are cadmium, indium, and lead-based materials but the toxicity and unstable nature of these QDs restricts their industrial and practical applications. To avoid using heavy metal ions, especially cadmium, the current research is focused on the fabrication of perovskite and vanadate QDs.

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Microbes residing in biofilms confer several fold higher antimicrobial resistances than their planktonic counterparts. Compared to monomicrobial biofilms, polymicrobial biofilms involving multiple bacteria, multiple fungi or both are more dominant in nature. Paradoxically, polymicrobial biofilms are less studied.

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Objectives: Existing research on erector spinae plane block and intrathecal morphine in patients undergoing percutaneous nephrolithotomy surgery is limited.

Methods: In this prospective, randomized study, 60 patients aged between 18 and 60 years were randomized into two groups (erector spinae plane block and intrathecal morphine). In the erector spinae plane block group, ultrasound-guided erector spinae plane block was performed, following which a mixture of 20 mL of 0.

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The present investigation demonstrates an enhancement of the visible photocatalytic activities by C ion implantation in ZnO nanorod arrays (NRAs). Vertically aligned ZnO NRAs were prepared by seed layer assisted solution-phase growth and implanted with 70 keV carbon ions at various fluencies: 1E15, 5E15, 1E16, and 3E16 ions/cm. X-ray diffraction and FESEM results revealed the crystalline 1D ZnO NRAs having a length of ∼3 μm with a diameter in the range of 150-200 nm.

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Hydroquinone (HQ) and catechol (CC) are the two major dihydroxybenzene isomers, are considered one of the toxic pollutants in wastewater, which often coexisted and impede each other during sample identification. For practical analysis and simultaneous detection of HQ and CC in wastewater, we fabricate a hybrid electrochemical sensor with electrospun one-dimensional (1D) MnMoO nanofibers coupled with a few-layered exfoliated two-dimensional (2D) MXene. The facilitated abundant defective edges of 1D MnMoO and 2D MXene nanoarchitecture accelerated the effect of synergistic signal amplification and exhibited high electrocatalytic activity towards the oxidation of hydroquinone and catechol.

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It is of interest to document the molecular docking and dynamic simulations of benzimidazoles with beta-tubulins in the context of anthelmintic activity. We document the compound BI-02 (2-(3,4-dimethyl phenyl)-1H-1,3-benzimidazole (BI-02) with optimal bindig features compared to the standard molecule albendazole (7.0 Kcal/mol) with binding energy -8.

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Unique NiCoS-carbon nanofiber (CNF) composite nanostructures were fabricated using a simple electrospinning-assisted hydrothermal route and used for the rapid and accurate electrochemical oxidation of glucose in real samples at the trace level. Electrochemical impedance spectroscopy and cyclic voltammetry of unmodified and modified electrodes revealed low charge-transfer resistance and the excellent electrocatalytic sensing of glucose when using the NiCoS-CNF at a low potential due to the combined benefits of the highly conductive NiCoS anchored to the large surface area of the CNFs. Amperometric analysis of the fabricated sensor has shown an extremely low limit of detection (0.

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Background: The review focuses on the bacteria associated with the human eye using the dual approach of detecting cultivable bacteria and the total microbiome using next generation sequencing. The purpose of this review was to highlight the connection between antimicrobial resistance and biofilm formation in ocular bacteria.

Methods: Pubmed was used as the source to catalogue culturable bacteria and ocular microbiomes associated with the normal eyes and those with ocular diseases, to ascertain the emergence of anti-microbial resistance with special reference to biofilm formation.

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We report gapless quantum spin liquid behavior in the layered triangular Sr_{3}CuSb_{2}O_{9} system. X-ray diffraction shows superlattice reflections associated with atomic site ordering into triangular Cu planes well separated by Sb planes. Muon spin relaxation measurements show that the S=1/2 moments at the magnetically active Cu sites remain dynamic down to 65 mK in spite of a large antiferromagnetic exchange scale evidenced by a large Curie-Weiss temperature θ_{CW}≃-143  K as extracted from the bulk susceptibility.

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Nanorod (NR) arrays offer commendable visible-light-driven photocatalytic performances. Herein, we describe the construction of a ternary ZnO-ZnS-GdS nanostructural array in which a sulfidation process is used to decorate a GdS shell layer with a ZnS interface over vapor-phase-grown vertically-aligned ZnO. With control over the shell-wall thickness, the shell layer of ∼25 nm wall thickness on the ultra-long ZnO NR arrays exhibited a higher catalytic efficiency close to 3.

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Article Synopsis
  • Escherichia coli (E. coli) is a major bacterium found in the intestines of animals, grouped into seven phylogroups and various pathogenic types affecting human health, such as EPEC and UPEC.
  • Recent research involved whole-genome sequencing of 10 ocular E. coli strains to determine their phylogenetic classification and pathotype, revealing that they mainly originated from feces, urine, or extra-intestinal sources.
  • The study also highlighted a strong link between antimicrobial resistance genes and antibiotic resistance in these ocular strains, along with unique virulence genes and prophages, marking the first comprehensive genomic analysis of E. coli found in ocular infections.
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Electrochemical water splitting represents an ideal strategy for producing clean hydrogen as an energy carrier that serves as an alternative to fossil fuels. As an effective method for hydrogen production, an efficient inexpensive multifunctional electrocatalyst with high durability is designed. Herein, we describe the heterostructural design of a three-dimensional catalytic network with self-embedded CoNiS nanograins grown on electrospun carbon nanofibers (CoNiS-CNFs) with anchored thin-layer reduced graphene oxide.

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Heterogeneous photocatalysis has been proven to be a promising approach to overcome the great challenges encountered with conventional technologies for environmental remediation. Herein, for the first time, a novel hierarchical architecture of nitrogen-doped TiO@BiWMoO (N-T@BWMO-x, x = 0-1.0) was rationally designed and fabricated through an electrospinning route followed by a solvothermal process.

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A flexible asymmetric supercapacitor (ASC) with high electrochemical performance was constructed using reduced graphene oxide (rGO)-wrapped redox-active metal oxide-based negative and positive electrodes. Thin layered rGO functionality on the positive and the negative electrode surfaces has promoted the feasible surface-active sites and enhances the electrochemical response with a wide operating voltage window. Herein we report the controlled growth of rGO-wrapped tubular FeMoO nanofibers (NFs) via electrospinning followed by surface functionalization as a negative electrode.

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Here, we report the synthesis and magnetic properties of a novel, centrosymmetric, quasi-1D spin chain system LaVWSO, with hexagonal crystal structure (P6/m, a  =  9.460 76(3), c  =  5.518 09(2) Å).

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Selectivity of catalysts toward harmful cationic pollutants in industrial wastewater remains challenging but is of crucial importance in environmental remediation processes. Here, we present a complex network of a hydrolyzed polymer of intrinsic microporosity (HPIM)-based electrospun nanofibrous web with surface functional decoration of ZnO nanorods (NRs) as a hierarchical platform for selective and rapid degradation of cationic dyes. Over a single species or binary mixtures, cationic dyes were selectively adsorbed by the HPIM surface, which then rapidly degraded under simultaneous photoirradiation through the ZnO NRs.

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