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Improving the charge kinetics through in-situ growth of NiSe nanoparticles on g-C_(3)N_(4)nanosheets for efficient hybrid supercapacitors

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Journal of Energy Chemistry 2023年第12期87卷 304-313,I0008页

作者： Somnath R.Khaladkar Oshnik Maurya Girish Gund Bhavesh Sinha Deepak Dubal R.R.Deshmukh archana kalekar Department of Physics Institute of Chemical Technology(ICT)MatungaMumbai 400019MaharashtraIndia Department of Physics Mahatma Phule ArtsScience and Commerce CollegePanvel 410206MaharashtraIndia National Center for Nanoscience and Nanotechnology University of MumbaiMumbai 400032MaharashtraIndia Centre for Materials Science School of Chemistry and PhysicsQueensland University of TechnologyBrisbane QLD 4000Australia

Nickel selenide(NiSe)has been a promising positive electrode for hybrid supercapacitors due to its multiple oxidation states,tunability,and high specific ***,sluggish ion transfers and particle agglomeration hamper its electrochemical *** the present study,we have grown NiSe nanoparticles on two-dimensional(2D)graphitic carbon nitride(g-C_(3)N_(4))nanosheets to realize three-dimensional(3D)*** 2D support,high nitrogen content,and features of g-C_(3)N_(4)enhanced the specific capacity of the NiSe/g-C_(3)N_(4)nanocomposite *** resulting nanocomposite shows a specific capacity of 320 mA h g^(-1)at a current density of 1 A g^(-1),which is considerably higher than pristine ***,the hybrid supercapacitor(HSC)device was fabricated using NiSe/g-C_(3)N_(4)composite as positive and activated carbon(AC)as negative *** cell delivered an energy density of 52.5 Wh kg^(-1)at a power density of 1488 W kg^(-1)with excellent cyclic stability of 84.9%over 8000 *** electrochemical performance enhancement corresponds to a 3D structure,high electrochemical active sites,and improved charge transportation at the electrode/electrolyte ***,the present work offers an easy approach and architectural design for high-performance HSC.

关键词： Nickel selenide Graphitic carbon nitride Nanocomposite Specific capacity Hybrid supercapacitor

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Study of plasma parameters of coaxial plasma source using triple Langmuir probe and Faraday cup diagnostics

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Plasma Science and Technology 2024年第4期26卷 94-100页

作者： Sunil KANCHI Rohit SHUKLA archana SHARMA Pulsed Power and Electromagnetics Division Bhabha Atomic Research CentreVisakhapatnam 531011India Homi Bhabha National Institute Mumbai 400085India Beam Technology Development Group Bhabha Atomic Research CentreMumbai 400085India

Coaxial plasma guns are a type of plasma source that produces plasma which propagates radially and axially controlled by the shape of the ground electrode, which has attracted much interest in several applications. In this work, a 120° opening angle of CPG nozzle is used as a plasma gun configuration that operates at the energy of 150 J. The ionization of polyethylene insulator between the electrodes of the gun produces a cloud of hydrogen and carbon *** triple Langmuir probe and Faraday cup are used to measure plasma density and plasma temperature. These methods are used to measure the on-axis and off-axis plasma divergence of the coaxial plasma gun. The peak values of ion densities measured at a distance of 25 mm on-axis from the plasma gun are(1.6±0.5)×10^(19)m^(-3)and(2.8±0.6)×10^(19)m^(-3)for hydrogen and carbon plasma respectively and the peak temperature is 3.02±0.5 eV. The mean propagation velocity of plasma is calculated using the transit times of plasma at different distances from the plasma gun and is found to be 4.54±0.25 cm/μs and 1.81±0.18 cm/μs for hydrogen and carbon plasma respectively. The Debye radius is obtained from the measured experimental data that satisfies the thin sheath approximation. The shot-to-shot stability of plasma parameters facilitates the use of plasma guns in laboratory experiments. These types of plasma sources can be used in many applications like plasma opening switches, plasma devices, and as plasma sources.

关键词： coaxial plasma source triple Langmuir probe Faraday cup plasma density plasma temperature

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Photonic properties and applications of multi-functional organo-lanthanide complexes:Recent advances

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Journal of Rare Earths 2024年第1期42卷 16-27,I0001页

作者： Virender archana Chauhan Ashwani Kumar Gurjaspreet Singh Alexander A.Solovev Jichuan Xiong Xuefeng Liu Brij Mohan Department of Chemistry Kurukshetra University KurukshetraKurukshetra136119India Aggarwal College Ballabhgarh121004Department of Higher EducationHaryanaIndia Department of Chemistry&Centre for Advanced Studies in Chemistry Panjab UniversityChandigarh160014India Department of Materials Science Fudan UniversityShanghai200433China School of Electronic and Optical Engineering Nanjing University of Science and TechnologyNanjing210094China College of Ocean Food and Biological Engineering Jimei UniversityXiamen361021China

Lanthanides(Ln(Ⅲ))based compounds as light-emitting materials have emerged as successful agents in high-performance defense and lighting systems,magnets,bio-markers,and ***,they have recently gained much attention as energy-saving and cost-effective luminescent materials and their applications in analyte *** present review summarizes powerful features and recent developments of organo-lanthanide complexes in lighting applications with a particular focus on visible light emitters,including Eu(Ⅲ),Tb(Ⅲ),Sm(Ⅲ),and Dy(Ⅲ)*** addition,this review discusses the most relevant aspects of photosensitization,such as the structure,property,functionalization of primary and secondary ligands,and molecular *** addition,coordination sites of organo-lanthanide complexes and their applications collectively contribute to the improved performance of innovative luminescent ***,the current challenges and key recommendations for advancing organolanthanides in material science are provided.

关键词： Lanthanides Organometallic Luminescent Lifetime OLED Rare earths

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Ameliorative Effects of Paclobutrazol via Physio-Biochemical and Molecular Manifestation in Rice under Water Deficit Stress

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Rice science 2024年第5期31卷 603-616,I0065页

作者： Chirag MAHESHWARI Nitin Kumar GARG archana SINGH Aruna TYAGI Indian Council of Agricultural Research-Indian Agricultural Research Institute New Delhi 110012India Sri Karan Narendra Agricultural University JobnerRajasthan 303329India

To comprehensively explore the physio-biochemical and molecular changes of paclobutrazol(PBZ) at the ideal dose under water deficit stress(WDS) conditions, we investigated the effects of 100 mg/kg PBZ applied via drenching on various physio-biochemical and molecular parameters in three rice varieties(N22, IR64, and IR64 DTY1.1) under both mild [75%-80% relative water content(RWC)] and severe(60%-65% RWC) WDS conditions. The results showed that PBZ treatment positively influenced the physio-biochemical parameters, significantly increasing dry matter(16.27%-61.91%), RWC(6.48%-16.34%), membrane stability index(4.37%-10.35%), and total chlorophyll content(8.97%-29.09%) in the rice varieties under both mild and severe WDS. Moreover, PBZ treatment reduced drought susceptibility(0.83-0.95) and enhanced drought tolerance efficiency(60.92%-86.78%), indicating its potential as a stress-mitigating agent. Global methylation analysis revealed changes in DNA methylation patterns, indicating the regulatory influence of PBZ on gene expression. The expression analysis of genes involved in the diversification of geranylgeranyl pyrophosphate towards the biosynthesis of abscisic acid, gibberellin acid, and chlorophyll showed alterations in their expression levels, suggesting the involvement of PBZ in the isoprenoid pathway. Overall, this study provides valuable insights into the potential mechanisms by which PBZ modulates physiological and molecular responses in rice plants under WDS. The findings highlight the importance of PBZ as a promising agent for enhancing drought tolerance in rice and offer valuable information for future research in crop stress management.

关键词： rice paclobutrazol drought stress abscisic acid gibberellic acid

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Serum tumor markers:Can they clinically implicate in type 2 diabetes mellitus?

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World Journal of Diabetes 2024年第7期15卷 1648-1650页

作者： Kotha Sugunakar Reddy Ilakkiya Priya Pandiaraj archana Gaur Sakthivadivel Varatharajan Department of General Medicine All India Institute of Medical SciencesHyderabad 508126TelanganaIndia Department of Physiology All India Institute of Medical SciencesHyderabad 508126TelanganaIndia

“Serum tumor markers expression(CA19-9,CA242,and CEA)and its clinical implications in type 2 diabetes mellitus”authored by Meng and Shi presents an observational case-control study investigating the correlation between tumor markers and type 2 diabetes mellitus(T2DM).The study explores the diagnostic accuracy of tumor markers,particularly cancer antigen 19-9(CA19-9),CA242,and carcinoembryonic antigen,in poorly controlled T2DM patients with hemoglobin A1c levels exceeding 9%,employing receiver operating characteristic curve *** study offers valuable insights into the potential utility of tumor markers in clinical practice,caution is advised regarding routine tumor marker testing due to challenges such as limited availability and ***,the study overlooks potential confounding factors like smoking and alcohol *** in CA19-9 and CA242 expression underscore the complex interplay between tumor markers and systemic diseases,warranting further investigation into their diagnostic and prognostic *** Meng and Shi represent a significant contribution to the field,more extensive research is needed to fully elucidate the role of tumor markers in diabetes management and beyond.

关键词： Cancer antigen 19-9 Cancer antigen 242 Carcinoembryonic antigen Tumor markers Type 2 diabetes mellitus

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Chiglitazar and Thiazolidinedione in patients with type 2 diabetes:Which is better?

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World Journal of Diabetes 2024年第3期15卷 565-567页

作者： Kotha Sugunakar Reddy archana Gaur Sakthivadivel Varatharajan Arvind Kumar Morya Department of General Medicine All India Institute of Medical SciencesHyderabad 508126TelanganaIndia Department of Physiology All India Institute of Medical SciencesHyderabad 508126TelanganaIndia Department of Medicine All India Institute of Medical SciencesHyderabad 508126TelanganaIndia Department of Ophthalmology All India Institute of Medical SciencesHyderabad 508126TelanganaIndia

This published Meta-Analysis by Lin et al is an indirect comparison between two drugs Chiglitazar and Thiazolidinedione which are commonly used for glycemic control in type-Ⅱ diabetes *** terms of safety and efficacy... 详细信息

关键词： Type-Ⅱdiabetes mellitus Glucose intolerance Hyperglycemia Research methodology

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Praseodymium metal nanorods as a 5-fluorouracil carrier

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Journal of Rare Earths 2024年第7期42卷 1328-1336,I0005页

作者： Varnitha Manikantan Govindaraj Sri Varalakshmi Ujma Ashapak Tamboli archana Sumohan Pillai Aleyamma Alexander Anushka Lucas Bose Allben Akash Israel V.M.V.Enoch Centre for Nanoscience and Genomics Karunya Institute of Technology and Sciences(Deemed University)Coimbatore641114Tamil NaduIndia Department of Applied Chemistry Karunya Institute of Technology and Sciences(Deemed University)Coimbatore641114Tamil NaduIndia

Interest in metal nanoparticles as nanoscale drug-carrying vehicles has been *** such an aspect,lanthanide metal nanoparticles are particularly ***,we report praseodymium nanoparticles as a novel anticancer therapeutic transporting *** material was made as a composite with the supramolecular host polymer,poly-β-*** praseodymium nanorods were characterized using standard analytical techniques,including X-ray diffraction(XRD),X-ray photoelectron spectroscopy(XPS),and thermogravimetric analysis(TGA).In addition,they were imaged using transmission electron *** nanostructures are a long rod-shaped material with 2.0±0.1μm in length and 230±10 nm in *** material shows a saturation magnetization value above 30 emu/g with a coercivity value of 130 *** nanocarrier is freighted with the drug 5-fluorouracil,and the encapsulation efficiency is 76.09%.The drug release is continuous from the nanocarrier(polymer-containing praseodymium nanoparticles)and proceeds for above 250 *** in vitro cytotoxicities of the blank nanocarrier and the 5-fluorouracil-loaded one are deduced by testing them on MCF-7 and Vero(non-cancerous)cell *** cytotoxicity on the cancerous cell lines is observed,whereas the non-cancerous cells are *** IC_(50)values on the cell lines are reported.

关键词： Metal nanoparticles Praseodymium Poly-cyclodextrin Drug delivery Anticancer activity Rare earths

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Targeting brain tumors with innovative nanocarriers:bridging the gap through the blood-brain barrier

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Oncology Research 2024年第5期32卷 877-897页

作者： KARAN WADHWA PAYAL CHAUHAN SHOBHIT KUMAR RAKESH PAHWA RAVINDER VERMA RAJAT GOYAL GOVIND SINGH archana SHARMA NEHA RAO DEEPAK KAUSHIK Department of Pharmaceutical Sciences Maharshi Dayanand UniversityRohtak124001India Department of Pharmaceutical Technology Meerut Institute of Engineering and Technology(MIET)NH-58Delhi-Roorkee HighwayMeerut250005India Institute of Pharmaceutical Sciences Kurukshetra UniversityKurukshetra136119India Department of Pharmaceutical Sciences Chaudhary Bansi Lal UniversityBhiwani127021India MM College of Pharmacy Maharishi Markandeshwar(Deemed to be University)Mullana-AmbalaHaryana133207India Delhi Pharmaceutical Sciences and Research University(DIPSAR) Delhi Pharmaceutical Sciences and Research UniversityNew Delhi110017India

Background:Glioblastoma multiforme(GBM)is recognized as the most lethal and most highly invasive *** high likelihood of treatment failure arises fromthe presence of the blood-brain barrier(BBB)and stemcells around GBM,which avert the entry of chemotherapeutic drugs into the ***:Recently,several researchers have designed novel nanocarrier systems like liposomes,dendrimers,metallic nanoparticles,nanodiamonds,and nanorobot approaches,allowing drugs to infiltrate the BBB more efficiently,opening up innovative avenues to prevail over therapy problems and radiation ***:Relevant literature for this manuscript has been collected from a comprehensive and systematic search of databases,for example,PubMed,Science Direct,Google Scholar,and others,using specific keyword combinations,including“glioblastoma,”“brain tumor,”“nanocarriers,”and several ***:This review also provides deep insights into recent advancements in nanocarrier-based formulations and technologies for GBM *** of various scientific advances in conjunction with encouraging findings concerning the future perspectives and challenges of nanocarriers for effective brain tumor management has also been discussed.

关键词： Glioblastoma Brain tumor Blood-brain barrier Liposomes Metallic nanoparticles Nanocarriers

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Outcome of COVID-19 infection in patients on antihypertensives:A cross-sectional study

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World Journal of Critical Care Medicine 2024年第3期13卷 42-52页

作者： Sakthivadivel Varatharajan Gopal K Bohra Pradeep K Bhatia Satyendra Khichar Mahadev Meena Naveenraj Palanisamy archana Gaur Mahendra K Garg Department of General Medicine All India Institute of Medical Sciences-BibinagarHyderabad 508126TelanganaIndia Department of General Medicine All India Institute of Medical SciencesJodhpur 342005RajasthanIndia Department of Anaesthesiology and Critical Care All India Institute of Medical SciencesJodhpur 342005RajasthanIndia Department of General Medicine All India Institute of Medical SciencesBhopal 462020Madhya PradeshIndia Department of General Medicine ESIC Medical College&HospitalChennai 600021TamilnaduIndia Department of Physiology All India Institute of Medical Sciences-BibinagarHyderabad 508126TelanganaIndia Department of Endocrinology&Metabolism All India Institute of Medical SciencesJodhpur 342005RajasthanIndia

BACKGROUND Patients with coronavirus disease 2019(COVID-19)infection frequently have hypertension as a co-morbidity,which is linked to adverse *** may affect the outcome of COVID-19 *** To assess the effects of antihypertensive agents on the outcomes of COVID-19 *** A total of 260 patients were included,and their demographic data and clinical profile were *** patients were categorized into nonhypertensive,angiotensin-converting enzyme inhibitor/angiotensin receptor blocker(ACEI/ARB),calcium channel blocker(CCB),a combination of ACEI/ARB and CCB,and beta-blocker ***,hematological,and inflammatory markers were *** severity of infection,intensive care unit(ICU)intervention,and outcome were *** The mean age of patients was approximately 60-years-old in all groups,except the nonhypertensive *** were predominant in all *** was the most common presenting *** respiratory distress syndrome was the most common complication,and was mostly found in the CCB *** cases,ICU intervention,and mortality were also higher in the CCB *** logistic regression analysis revealed that age,duration of antihypertensive therapy,erythrocyte sedimentation rate,high-sensitivity C-reactive protein,and interleukin 6 were significantly associated with *** duration of antihypertensive therapy exhibited a sensitivity of 70.8%and specificity of 55.7%,with a cut-off value of 4.5 years and an area under the curve of 0.670(0.574-0.767;95%confidence interval)for COVID-19 *** The type of antihypertensive medication has no impact on the clinical sequence or mortality of patients with COVID-19 ***,the duration of antihypertensive therapy is associated with poor outcomes.

关键词： Antihypertensive COVID-19 Hypertension Mortality Outcome

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On the photoevaporation,dust polarization and kinematics of two nebulae in Sh2-236

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Research in Astronomy and Astrophysics 2021年第4期21卷 157-167页

作者： archana Soam SOFIA Science Center Universities Space Research AssociationNASA Ames Research CenterM.S.N232-12Moffett FieldCA 94035USA

In the work presented here,the impact of magnetic field on the dynamical evolution of cometary globules Sim 129 and Sim 130 in the Sh2-236 HⅡregion and the ionized gas streaming out of their surfaces is *** magnetic field morphology in the region associated with these globules is inferred using optical polarization measurements with the Sampurnanand Telescope at *** nebular emission is probed through radio continuum mapping at 1.4 GHz with the archival National Radio Astronomy Observatory(NRAO)Very Large Array(VLA)Sky Survey(NVSS)*** correlation of these measurements suggests that photoevaporated gas from the surfaces of Sim 129 and Sim 130 accumulates in clouds and starts streaming along the magnetic field *** ^(12)CO(J=1-0)molecular line observations are performed towards NGC 1893 from the 14-m single dish radio telescope in Taeduk Radio Astronomy Observatory(TRAO).The velocity dispersion in the ^(12)CO(J=1-0)molecular line and the dispersion in polarization angles are considered in the Davis-Chandrasekhar-Fermi formulation to estimate the magnetic field strength towards two Sim *** average value of field strength is found to be~60μG with uncertainty of 0.5 times the estimated value.

关键词： ISM:general polarization:nebulae

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