Original Research Article
Computational Chemistry
Farkhanda Afzal; Faiza Afzal; Deeba Afzal; Mohammad Reza Farahani; Zahid Hussain; Murat Cancan
Abstract
The aim of this article was to compute weighted entropy of some well-known nanostructure HAC5C7[p;q]. We applied probability density function to formulate entropy by taking different topological indices as edge weights for example Zagreb indices, modified Zagreb indices, augmented Zagreb index and Randić ...
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The aim of this article was to compute weighted entropy of some well-known nanostructure HAC5C7[p;q]. We applied probability density function to formulate entropy by taking different topological indices as edge weights for example Zagreb indices, modified Zagreb indices, augmented Zagreb index and Randić index. Using edge division of nanotube, we computed the stated entropies.
![Weighted entropies of HAC5C7[p;q] nanotube](data/ecc/coversheet/951606747361.jpg)
Original Research Article
Management in Chemistry
Samrudha Nayak; B.C.M. Patnaik; Ipseeta Satpathy
Abstract
We analyzed the effect of combining with IFRS on the stock market performance of selected jewelry organizations recorded in S&P BSE 100. The period of seven years from 2013 to 2019 was chosen and Ordinary Least Square (OLS) regression model was utilized for the examination. The results revealed that ...
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We analyzed the effect of combining with IFRS on the stock market performance of selected jewelry organizations recorded in S&P BSE 100. The period of seven years from 2013 to 2019 was chosen and Ordinary Least Square (OLS) regression model was utilized for the examination. The results revealed that the worth of financial statements was high on converging with IFRS. The effect of budget (financial) report factors on the Indian Stock Market was proved to be evident regarding PAT. Be that as it may, all financial variables showed a huge relationship with securities exchange market indicators.
Original Research Article
Computational Chemistry
Farkhanda Afzal; Faiza Afzal; Deeba Afzal; Mohammad Reza Farahani; Murat Cancan; Suleyman Ediz
Abstract
The entropy of a graph is a function depending both on the graph itself and on a probability distribution on its vertex set. This graph function originated in the problem of source coding in information theory and was introduced by J. Krner in 1973. Although the notion of graph entropy has its roots ...
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The entropy of a graph is a function depending both on the graph itself and on a probability distribution on its vertex set. This graph function originated in the problem of source coding in information theory and was introduced by J. Krner in 1973. Although the notion of graph entropy has its roots in information theory, it was proved to be closely related to some classical and frequently studied graph theoretic concepts. In this article, we captured the symmetry present in the structure of molecular graph of nanotube. We computed entropies of TUC5C8[p;q] nanotube taking some degree-based topological indices as edge weights.
![Weighted entropies of Tuc5c8[P;Q] nanotube with the degree based topological indices as weights](data/ecc/coversheet/811607621620.jpg)
Original Research Article
Analytical chemistry
Maryam Ebrahimi; Hadi Beitollahi
Abstract
This study reported the electrochemical sensor for sensitive determination of methionine based on CuO nanoflowers (CuO NFs) supported on glassy carbon electrode (GCE). Therefore, we utilized cyclic voltammetry (CV), chronoamperometry (CHA) as well as differential pulse voltammetry (DPV) for characterizing ...
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This study reported the electrochemical sensor for sensitive determination of methionine based on CuO nanoflowers (CuO NFs) supported on glassy carbon electrode (GCE). Therefore, we utilized cyclic voltammetry (CV), chronoamperometry (CHA) as well as differential pulse voltammetry (DPV) for characterizing the sensor performance. This CuO NFs/GCE has been found to have very good electrochemical catalytic activity toward methionine oxidation. The oxidation overpotential of methionine decreased significantly and its oxidation peak current increased dramatically at CuO NFs/GCE. Moreover, the sensor showed a linear response for detecting methionine in the broad ranges from 1.0-300.0 µM with a low limit of detection (LOD) equal to 0.3 µM. Finally, we employed CuO NFs/GCE as a highly sensitive tool to analyze methionine in real sample (urine).
Original Research Article
Analytical chemistry
Hadi Beitollahi; Sajedeh Salari
Abstract
The present research presented a novel modification approach for modifying a glassy carbon electrode on the basis of the Ce3+/NiO hexagonal nanoparticles (Ce3+/NiO hexagonal NPs/GCE). In so doing, we devised the new modified electrode for using as one of the sensitive sensors for detecting the trace ...
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The present research presented a novel modification approach for modifying a glassy carbon electrode on the basis of the Ce3+/NiO hexagonal nanoparticles (Ce3+/NiO hexagonal NPs/GCE). In so doing, we devised the new modified electrode for using as one of the sensitive sensors for detecting the trace amounts of hydrochlorothiazide. Moreover, it is an acceptable electrocatalyst for catalytic oxidation of hydrochlorothiazide by shifting the overpotential toward less positive potential and enhancing catalytic current in comparison to the bare GCE. In a concentration range 0.1 to 700.0 μM in a phosphate buffer solution (PBS) at a pH of 7.0, the responses were linear and hydrochlorothiazide detection limit for this method was 0.03 μM (S/N=3). Furthermore, this sensor successfully detected hydrochlorothiazide in hydrochlorothiazide tablets and urine samples with satisfactory recovery ranges, indicating a promising application in biological samples, pharmaceutical compounds analysis and clinical diagnosis.
Original Research Article
Computational Chemistry
Zahra Hosseinzadeh; Mohammad Khavani; Ali Ramazani; Hamideh Ahankar; Vasyl Kinzhybalo
Abstract
The crystal structure of 2-amino-4-(2,4-dichlorophenyl)-6 phenylnicotinonitrile (ADPN) was determined by single crystal X-ray diffraction. The crystal structure showed two independent molecules with very similar geometric parameters and different environments. Density functional theory (DFT) and DFT ...
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The crystal structure of 2-amino-4-(2,4-dichlorophenyl)-6 phenylnicotinonitrile (ADPN) was determined by single crystal X-ray diffraction. The crystal structure showed two independent molecules with very similar geometric parameters and different environments. Density functional theory (DFT) and DFT dispersion corrected (DFT-D3) calculations were applied to study the structural and chemical properties of ADPN and its dimer. To have a better insight into the properties of the synthesized molecule, quantum chemistry calculations were performed. Based on the calculated results, the dispersion forces have remarkable effects on the stability of ADPN crystal. Moreover, hydrogen bond interactions between ADPN molecules due to molecular orbital interactions can be a driving force for the dimerization process.
Original Research Article
Analytical chemistry
Swati Sinha; Tapan Kumar Nailwal
Abstract
Oroxylum indicum is an important Ayurvedic medicinal plant used in medicinal formulations to treat many diseases. In this research, an effective, sensitive, reliable, cost effective and comprehensive assessment of quality of Oroxylum indicum has been developed based on high performance liquid chromatography ...
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Oroxylum indicum is an important Ayurvedic medicinal plant used in medicinal formulations to treat many diseases. In this research, an effective, sensitive, reliable, cost effective and comprehensive assessment of quality of Oroxylum indicum has been developed based on high performance liquid chromatography (HPLC) fingerprint analysis combined with the quantitative analysis of multi-components by a single marker (QAMS) method. The contents of four components i.e., Scutellarin, Hispidulin, Baicalein and Biochanina-A, has been determined, simultaneously, and Baicalein is used as internal reference standard. It was established that there is no major difference between the QAMS method and the traditional external standard method (ESM) (RSD<2.00%). This signifies that QAMS is a consistent and expedient method for the content determination of multiple components, particularly when there is non-availability of multiple reference standards. This method was also validated in terms of linearity, precision, stability, recovery and reproducibility. Hence it can be effectively applied for quality assessment of Oroxylum indicum in various Ayurvedic formulations.
Review Article
Organic Chemistry
Sajjad Alipour Shoari; Amir Jafarpour; Reza Bagheri; Farnaz Norouzi; Tina Mahin; Sana Taherzadeh; Ehsan Allahgholipour; Saba Arjang; Sahar Soleimani; Asma Davari Asl; Farzam Fazli Bavil Olyayee; Yashar Rezaei; Solmaz Maleki Dizaj; Simin Sharifi
Abstract
Applying nano-scaffolds for pulp regeneration is another use of nanotechnology in endodontics that creates impressive development in reconstruction of pulp structure. This study aimed to review the application of polymeric NPs in different stages of the conventional endodontic process and regenerative ...
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Applying nano-scaffolds for pulp regeneration is another use of nanotechnology in endodontics that creates impressive development in reconstruction of pulp structure. This study aimed to review the application of polymeric NPs in different stages of the conventional endodontic process and regenerative endodontic therapy. Accordingly, the studies over last ten years were searched by an electronic and manual search via PubMed and Google Scholar search motors. The search was conducted by using these keyword: "polymers","nanoparticles","endodontics", “polymeric nanoparticles”,“root canal disinfection”, and “regeneration”. The results showed that different polymeric nanoparticles (NPs) have different advantages and disadvantages but the point is the superiority of nanomaterials in comparison with conventional ones. Using polymeric NPs is a new concept in endodontics' procedures, which could take part as a promising method rather than conventional root canal therapy. Therefore, the future perspective of endodontic seems very promising by using these novel nanomaterials.
![Weighted entropies of HAC5C7[p;q] nanotube](javascript:loadModal('Weighted entropies of HAC5C7[p;q] nanotube ... ', 'data/ecc/coversheet/951606747361.jpg'))
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![Weighted entropies of Tuc5c8[P;Q] nanotube with the degree based topological indices as weights](javascript:loadModal('Weighted entropies of Tuc5c8[P;Q] nanotube with th ... ', 'data/ecc/coversheet/811607621620.jpg'))
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