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Glucose Functionalized Magnetic Iron Oxide Nanoparticles for Protein Detection and Separation 用于蛋白质检测和分离的葡萄糖功能化磁性氧化铁纳米粒子
Pub Date : 2024-01-01 DOI: 10.3329/jsr.v16i1.68491
SK. Basiruddin
Iron oxide magnetic nanoparticles (MNP) are considered to be emergent nanoparticles for magnetic separation and MRI imaging probes. Here, glucose-functionalized iron oxide (γ-Fe2O3) magnetic nanoparticles have been prepared for specific protein detection and separation. First, hydrophobic iron oxide (γ-Fe2O3) was synthesized by standard organometallic approaches, and the same has been converted to soluble, colloidally stable, hydrophilic primary amine (-NH2)-PEG terminated iron oxide (γ-Fe2O3) nanoparticles using reverse micelle based robust polyacrylate coating chemistry. Then, glucose was covalently linked to this amine (-NH2)-PEG terminated iron oxide (γ-Fe2O3) nanoparticles by using glutaraldehyde-based coupling chemistry. Finally, glucose-functionalized iron oxide (γ-Fe2O3) nanoparticles have been used for specific detection and separation of a glycoprotein, Concanavalin-A.
氧化铁磁性纳米粒子(MNP)被认为是磁性分离和磁共振成像探针的新兴纳米粒子。本文制备了葡萄糖功能化氧化铁(γ-Fe2O3)磁性纳米粒子,用于特异性蛋白质检测和分离。首先,通过标准的有机金属方法合成了疏水性氧化铁(γ-Fe2O3),并利用基于反胶束的强力聚丙烯酸酯涂层化学将其转化为可溶性、胶体稳定、亲水性伯胺(-NH2)-PEG 端接的氧化铁(γ-Fe2O3)纳米粒子。然后,利用戊二醛基偶联化学将葡萄糖与这种胺(-NH2)-PEG 端接的氧化铁(γ-Fe2O3)纳米粒子共价连接。最后,葡萄糖官能化氧化铁(γ-Fe2O3)纳米粒子被用于特异性检测和分离糖蛋白--Concanavalin-A。
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引用次数: 0
Fair Detour Domination in the Corona of Two Graphs: Optimizing CCTV Camera Installation for Efficient Surveillance 双图日冕中的公平迂回支配:优化 CCTV 摄像机安装,实现高效监控
Pub Date : 2024-01-01 DOI: 10.3329/jsr.v16i1.67723
D. J. Ebenezer, J. X. Parthipan
The objective of our research is to analyze the properties of FDD sets in the corona of two graphs and explore their practical application in CCTV camera installation. A set F ⊆ V(G) is considered to be a Fair Detour Dominating set (FDD-set) if it is detour dominating and the number of neighbors within set F is the same for any pair of vertices outside of F. Among these FDD sets, the fγd-set refers to the FDD-set with the smallest number of vertices, and its order defines the Fair Detour Domination number (fγd  (G)). We have established that for any arbitrary graphs G1 and  G2, fγd (G1 o G2)   = |V(G1) iff fd(G2)  = 1 we have determined the  fγd number of corona products of any connected graph G with the path graph as well as the cycle graph. We also characterized FDD sets in the corona product of two connected graphs and provided a thorough description of how FDD sets can be used in optimizing CCTV camera installation for efficient surveillance.
我们的研究目的是分析两图日冕中公平迂回集的性质,并探索其在闭路电视摄像机安装中的实际应用。如果一个集合 F ⊆ V(G)具有迂回支配性,且集合 F 内的邻接数对于 F 外的任意一对顶点都相同,则该集合 F ⊆ V(G)被认为是公平迂回支配集(FDD 集)。我们已经确定,对于任意图 G1 和 G2,如果 fd(G2) = 1,则 fγd (G1 o G2) = |V(G1) 我们还确定了任意连通图 G 与路径图以及循环图的日冕积的 fγd 数。我们还确定了两个连通图的日冕积中的 FDD 集的特征,并全面描述了如何将 FDD 集用于优化 CCTV 摄像机安装以实现高效监控。
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引用次数: 0
Intensification of Sonophotocatalytic Degradation of Ponceau S using Fe - Doped and Undoped ZnO Nano Catalyst 使用掺杂铁和未掺杂氧化锌纳米催化剂强化声光催化降解庞色斯
Pub Date : 2024-01-01 DOI: 10.3329/jsr.v16i1.65455
V. K. Mahajan, S. G. Shelar, S. P. Patil, G. Sonawane
Fe-doped ZnO nano catalyst was synthesized by co-precipitation method. The intrinsic characteristics of a prepared nano Fe-doped ZnO catalyst were studied using a variety of techniques including powder X-ray diffraction (XRD), scanning electron microscope (SEM), electron dispersive X-ray spectroscopy (EDS). In this study, degradation of Ponceau S as a dye pollutant was investigated in the presence of ZnO and Fe-doped ZnO nano catalyst using sonolysis, photocatalysis, sonocatalysis and sonophotocatalysis. The UV light and ultrasonic probsonicator at 20 kHz and 150 W powers were used as an irradiation source. The effect of H2O2 on sonocatalytic, photocatalytic and sonophotocatalytic degradation was investigated. At optimum conditions the dye degradation efficiency was influenced by addition of H2O2, the highest dye degradation was obtained as 98 % by US+UV+Fe-doped ZnO+H2O2 for 40 mg/L dye concentration after 90min. The experimental kinetic data followed the pseudo-first order model in doped and undoped sonocatalytic, photocatalytic and sonophotocatalytic processes but the rate constant of sonophotocatalysis is higher than sonocatalysis and photocatalysis process. The sonophotocatalysis was always faster than the respective individual processes due to the more formation of reactive radicals as well as the increase of the active surface area of nano catalyst.   
采用共沉淀法合成了掺铁氧化锌纳米催化剂。利用粉末 X 射线衍射 (XRD)、扫描电子显微镜 (SEM)、电子色散 X 射线光谱 (EDS) 等多种技术研究了所制备的掺铁 ZnO 纳米催化剂的内在特性。本研究采用声解、光催化、声催化和声光催化技术,研究了在氧化锌和掺杂铁的氧化锌纳米催化剂存在下降解染料污染物庞索S的情况。采用 20 kHz 和 150 W 功率的紫外光和超声波震荡器作为辐照源。研究了 H2O2 对声催化、光催化和声光催化降解的影响。在最佳条件下,染料降解效率受 H2O2 添加量的影响,US+UV+掺杂铁的 ZnO+H2O2 对 40 mg/L 浓度的染料在 90 分钟后的降解率最高,达到 98%。在掺杂和未掺杂的声催化、光催化和声光催化过程中,实验动力学数据均遵循伪一阶模型,但声光催化的速率常数高于声催化和光催化过程。由于活性自由基的形成较多以及纳米催化剂活性表面积的增加,声光催化过程总是比各自的过程更快。
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引用次数: 0
Study of A Ferroelectric Liquid Crystal Mesogen by Geometrical Optimization and Electro-Optic Characterization 通过几何优化和电光表征研究一种铁电液晶中间体
Pub Date : 2024-01-01 DOI: 10.3329/jsr.v16i1.65364
D. Goswami
In the present work one biphenyl benzoate cored liquid crystal was characterized using geometrical optimization and electro-optic study. Geometry of the molecule was optimized using Hartree-Fock method with 3-21G basis. The simulated value of molecular length and dipole moment was reported. The Infrared (IR) spectra were also simulated and analyzed. The energy gap between highest occupied molecular orbit (HOMO) and lowest unoccupied molecular orbit (LUMO) was calculated. The phase transition temperatures and phase sequences were identified by observing the topological defects in the optical textures at different temperatures under polarizing microscope. It exhibited ferroelectric smectics C* (SmC*) phase for a wide range of temperature and then directly melted into isotropic phase. The optical tilt angle of the compound was measured in SmC* phase and was fitted with mean field model to explore the nature of phase transition. The applicability of the compound for display applications were judged based on the parameters measured.
本研究利用几何优化和电光研究对一种苯甲酸联苯芯液晶进行了表征。采用哈特里-福克(Hartree-Fock)方法和 3-21G 基对分子的几何形状进行了优化。报告了分子长度和偶极矩的模拟值。还模拟并分析了红外光谱。计算了最高占有分子轨道(HOMO)和最低未占有分子轨道(LUMO)之间的能隙。通过在偏光显微镜下观察不同温度下光学纹理的拓扑缺陷,确定了相变温度和相序。它在很宽的温度范围内表现出铁电 Smectics C* (SmC*) 相,然后直接熔化成各向同性相。在 SmC* 相中测量了化合物的光学倾斜角,并用平均场模型进行了拟合,以探索相变的性质。根据测量到的参数判断了该化合物在显示应用中的适用性。
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引用次数: 0
Mathematical Analysis of Fractional Diabetes Model via an Efficient Computational Technique 通过高效计算技术对分数糖尿病模型进行数学分析
Pub Date : 2024-01-01 DOI: 10.3329/jsr.v16i1.66199
V. M. Batchu, V. Gill, S. Rana, Y. Singh
Diabetes is referred to a chronic metabolic disease signalized by elevated levels of blood glucose (also known as blood sugar level), which results over time in serious damage to the heart, blood vessels, eyes, kidneys, and nerves in the body. A mathematical assessment of the diabetes model using the Caputo fractional order derivative operator is given in this research paper. The concept of a Caputo fractional order derivative is a novel class of non-integer order derivative that has many applications in real-life scenarios. The proposed model is represented by a set of fractional ordinary differential equations. The authors employed the Sumudu Transform Homotopy Perturbation Method (STHPM) for finding the series solutions of the model being studied. By giving various numerical values to the respective model parameters, graphical analysis is also performed.  It is observed in the numerical discussion that a decrease in both fractional order  and  leads to decrease in the number of diabetic people.
糖尿病是一种慢性代谢性疾病,以血糖(又称血糖水平)升高为信号,长期会对人体的心脏、血管、眼睛、肾脏和神经造成严重损害。本研究论文利用卡普托分数阶导数算子对糖尿病模型进行了数学评估。卡普托分数阶导数的概念是一类新颖的非整数阶导数,在现实生活中有很多应用。所提出的模型由一组分数常微分方程表示。作者采用 Sumudu Transform Homotopy Perturbation Method (STHPM) 方法寻找所研究模型的序列解。通过对各个模型参数给出不同的数值,还进行了图形分析。 从数值讨论中可以看出,分数阶数的减少会导致糖尿病患者人数的减少。
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引用次数: 0
Numerical Solution of Cahn-Allen Equations by Wavelet Based Lifting Schemes 基于小波提升方案的卡恩-艾伦方程数值解法
Pub Date : 2024-01-01 DOI: 10.3329/jsr.v16i1.63085
L. M. Angadi
The Cahn-Allen equation is a reaction-diffusion equation of mathematical physics that describes the process of phase separation in multi-component alloy systems and order-disorder transitions. This paper presented a numerical solution of Cahn-Allen equations by Lifting scheme using different wavelet filter coefficients. The numerical results obtained using this scheme are compared with the exact solution to demonstrate the accuracy and fast convergence in less computational time than the existing scheme. Some problems are taken to show the validity and applicability of the scheme.
卡恩-阿伦方程是数学物理学中的反应-扩散方程,描述了多组分合金体系中的相分离过程和有序-无序转变。本文利用不同的小波滤波系数,通过 Lifting 方案对 Cahn-Allen 方程进行了数值求解。使用该方案获得的数值结果与精确解进行了比较,以证明其准确性和快速收敛性,而且计算时间比现有方案更短。通过一些问题来说明该方案的有效性和适用性。
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引用次数: 0
Statistical Signature and Its Theoretical Implication in Hot Jupiter Population 热木星群的统计特征及其理论意义
Pub Date : 2024-01-01 DOI: 10.3329/jsr.v16i1.65299
S. Mondal
Hot Jupiters, a special class of exoplanets, always draw attention due to their intriguing characteristics. In this paper, we have continued our endeavor to understand the distribution of hot Jupiter populations and the architecture of planetary systems through the statistical framework. Different techniques to discover hot Jupiters have been studied here, and current data suggested that the transit method has better chances of discovering light and short-period candidates. Relation between orbital eccentricity and other planetary parameters like mass and orbital periods have been investigated to support the existence of a discontinuity in planetary mass distribution at ~4 MJ. A low p-value in the KS test indicates the existence of two different populations of hot Jupiters having a possibly different channel of formation. We also discussed these statistical results' theoretical and empirical implications for dynamical evolution.
热木星是一类特殊的系外行星,因其引人入胜的特性而一直备受关注。在本文中,我们继续努力通过统计框架来了解热木星种群的分布和行星系统的结构。本文研究了发现热木星的不同技术,目前的数据表明,凌日法发现轻型和短周期候选者的机会更大。研究了轨道偏心率与质量和轨道周期等其他行星参数之间的关系,以支持行星质量分布在~4兆焦耳处存在不连续性。KS检验的低P值表明存在两个不同的热木星群,它们可能有不同的形成途径。我们还讨论了这些统计结果对动态演化的理论和经验影响。
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引用次数: 0
Investigation of Site Dependent Donor-Acceptor (Al-N) Doping Effect into ZnO for Optoelectronic Applications 研究用于光电应用的 ZnO 中的位点依赖性供体-受体(Al-N)掺杂效应
Pub Date : 2024-01-01 DOI: 10.3329/jsr.v16i1.66310
M. A. Sayed, M. Kamruzzaman, M. Liton, M. Helal, M. Rahman
In this study, the density functional theory (DFT) is used to investigate the effect of the incorporation of Al (donor) in the Zn-site and N (acceptor) in the O-site of ZnO. The detailed theoretical study highlights the confirmation of p-type conductivity and bandgap (0.58 and 0.21 eV) narrowing exhibits in N- and (Al-N)-doped ZnO systems. p-type nature is explicitly observed by introducing acceptor bands at the top of the valance band (VB). Whereas, degenerate n-type conductivity is seen in Al-doped ZnO and a widened bandgap of 2.70 eV is attributed to Burstein-Moss (BM) effect. The calculated value of the effective mass of the (Al-N)-doped ZnO system is lower than that of the un-doped ZnO. Enhancement of the absorption and photoconductivity in the visible region for N- and (Al-N)-doped ZnO could be due to the availability of more density of states. Importantly, reflectivity, refractive index, transmittance, dielectric constants, and optical band gap have also been calculated. Higher transmittance of the samples suggested that these could be suitable for the window material of solar cells. The optical bandgap value supports the electronic bandgap value. Therefore, our finding would be helpful to design high-performance homo-junction based electronic and optoelectronic devices.
本研究采用密度泛函理论(DFT)研究了在氧化锌的 Zn 位加入 Al(供体)和在 O 位加入 N(受体)的影响。详细的理论研究强调了在掺杂 N 和 (Al-N) 的氧化锌体系中 p 型导电性的确认和带隙(0.58 和 0.21 eV)的缩小。而在掺铝氧化锌中则出现了退化的 n 型导电性,并且由于伯斯坦-莫斯(BM)效应,带隙扩大到 2.70 eV。掺杂(Al-N)氧化锌体系的有效质量计算值低于未掺杂氧化锌。掺杂 N 和 (Al-N) ZnO 在可见光区域的吸收和光导率增强可能是由于获得了更多的态密度。重要的是,还计算了反射率、折射率、透射率、介电常数和光带隙。样品的透射率较高,表明这些样品适合用作太阳能电池的窗口材料。光带隙值支持电子带隙值。因此,我们的发现将有助于设计基于同质结的高性能电子和光电器件。
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引用次数: 0
Expedited Synthesis and Comprehensive Characterization of Oxomorpholine-Imidazole Derivatives: Unraveling their Remarkable Antimicrobial Activity Oxomorpholine-Imidazole 衍生物的快速合成和综合表征:揭示其显著的抗菌活性
Pub Date : 2024-01-01 DOI: 10.3329/jsr.v16i1.67728
S. M. Sitapara, J. H. Pandya, S. K. Kangad
This research focuses on synthesizing aromatic or heteroaromatic compounds with potential pharmaceutical and medicinal applications. Imidazole derivatives have garnered significant attention due to their versatile therapeutic potential, encompassing a broad spectrum of diseases, including cancer, bacterial infections, fungal infections, and malaria. To accomplish this, we have developed an efficient synthetic route to explore a diverse array of 2-((1,4-diphenyl-1H-imidazol-2-yl)thio)-N-(4-(3-oxomorpholino)phenyl) acetamide  derivatives. The structural elucidation of the synthesized compounds was carried out using advanced techniques, including 1H and 13C NMR, FT-IR spectroscopy, mass spectroscopy, and elemental analysis. Furthermore, the oxo morpholino-imidazole derivatives synthesized in this study were further employed to produce diverse chemotherapeutic agents with significant potential for clinical applications.            
这项研究的重点是合成具有潜在制药和药用价值的芳香族或杂芳族化合物。咪唑衍生物具有多种治疗潜力,可治疗癌症、细菌感染、真菌感染和疟疾等多种疾病,因此备受关注。为了实现这一目标,我们开发了一条高效的合成路线,以探索多种 2-((1,4-二苯基-1H-咪唑-2-基)硫基)-N-(4-(3-氧代吗啉基)苯基)乙酰胺衍生物。利用 1H 和 13C NMR、FT-IR 光谱、质谱和元素分析等先进技术对合成化合物进行了结构阐释。此外,本研究中合成的氧代吗啉咪唑衍生物还被进一步用于生产多种化疗药物,具有巨大的临床应用潜力。
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引用次数: 0
A Spatio-Temporal Groundwater Fluoride Contamination Assessment to Infer the Hydro-geochemical Analysis of Punjab Satluj Floodplain 通过时空地下水氟污染评估推断旁遮普萨特卢杰洪泛区的水文地球化学分析
Pub Date : 2024-01-01 DOI: 10.3329/jsr.v16i1.65562
K. Harsimrat
Punjab Satluj Floodplain is a Hydro-geologically, ecologically, and economically very precious resource-rich landscape. This area is fragile due to flood risk; since its inception, it has attracted lots of economic and sociocultural activities that adversely affect hydro-geochemical conditions. Spatial and statistical analysis of land use and land cover change reveals that from 1975 to 2011, this landscape experienced 56.55 % land use and land cover transformation. Maximum transformation is noticed in the agricultural and built-up areas. In 1975, agricultural and built-up areas covered 47057.11 hectares (45.13 %) and 469.5 hectares (0.45 %), respectively, of the Punjab Satluj floodplain, which was expanded and covered 91011.36 hectares (87.28 %) and 6495.7 hectares (6.24 %) respectively in 2011. Adversities of these values can be estimated from the groundwater contamination analysis that reveals the specific electrical conductance (EC), nitrate (NO3), potassium (K), calcium (Ca), magnesium (Mg), sodium (Na), and fluoride (F) contamination in the water exceed its permissible consumption limits and effects ecological health. The present research work is the epigram of the hydrogeochemical condition of the Punjab Satluj floodplain concerning the spatial distribution of fluoride contamination and its proximate causes.
旁遮普萨特卢杰洪泛平原是一个在水文地质、生态和经济方面都非常珍贵的资源丰富的景观。由于存在洪水风险,该地区十分脆弱;自诞生以来,它吸引了大量经济和社会文化活动,对水文地质条件造成了不利影响。土地利用和土地覆被变化的空间和统计分析显示,从 1975 年到 2011 年,该景观经历了 56.55% 的土地利用和土地覆被变化。农业区和建筑区的变化最大。1975 年,旁遮普萨特卢杰洪泛区的农业区和建筑区面积分别为 47057.11 公顷(45.13%)和 469.5 公顷(0.45%),2011 年,农业区和建筑区面积分别扩大到 91011.36 公顷(87.28%)和 6495.7 公顷(6.24%)。地下水污染分析表明,水中的特定电导率(EC)、硝酸盐(NO3)、钾(K)、钙(Ca)、镁(Mg)、钠(Na)和氟(F)污染超过了允许饮用限值,影响了生态健康。本研究工作是旁遮普萨特卢杰洪泛区水文地质化学条件的缩影,涉及氟污染的空间分布及其近因。
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