Oriental Journal Of Chemistry最新文献

{"title":"Cu2ZnSnS4 Thin Film Solar Cell Construction Using Chemical Technique","authors":"Kishore Kumar Y B, Suresh Babu G, Swapna Smitha A S, Surya Sekhar Reddy M, Kiran Y B","doi":"10.13005/ojc/390622","DOIUrl":"https://doi.org/10.13005/ojc/390622","url":null,"abstract":"Cu2ZnSnS4 (CZTS) presents itself as a potential quaternary semiconductor absorber layer in the field of thin film heterojunction solar cells. The conventional spray pyrolysis method has been used in the present investigation. X-ray diffraction results confirm the structure of the deposited films as kesterite. The lattice parameters are determined to be a = 0.5436 nm and c = 1.0856 nm. The material exhibits an energy gap of 1.5 eV and an optical absorption coefficient exceeding 104 /cm. CZTS films exhibit a p-type nature. The deposited films are kept on the hot surface for some time after the chemical spray pyrolysis is finished, which contributes to improved crystallinity. Using chemical synthesis techniques, a Cu2ZnSnS4 thin film solar cell is constructed. These solar cells exhibited an efficiency of 0.5%. Ongoing efforts are directed towards achieving reasonable efficiency levels.","PeriodicalId":19599,"journal":{"name":"Oriental Journal Of Chemistry","volume":"101 4","pages":""},"PeriodicalIF":0.5,"publicationDate":"2023-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139154139","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Synthesis, Characterization, and Computational Study of Novel 2-Phenoxyethyl Xanthate Ligand and Complexes with some Transitions Metals","authors":"Mohammed Mahmoud Molla-Babaker, Maher Khalid, Saad.e. Al-mukhtar Al-mukhtar","doi":"10.13005/ojc/390616","DOIUrl":"https://doi.org/10.13005/ojc/390616","url":null,"abstract":"The research focuses on the synthesis and characterization of a novel xanthate ligand and their complexes with the formula [M(PhOEtXant)2], where M represents as Mn(II), Fe(II), Co(II), Ni(II), Cu(II), and Zn(II), and PhOEtXant stands for 2-Phenoxyethylxanthate. The antioxidant activities of these complexes will be evaluated by comparing them with standard natural antioxidants and ascorbic acid using the (DPPH) assay. The synthesized complexes were thoroughly characterized based on their physical properties using various spectral methods, like XRD, FTIR, NMR, AA, UV-visible, magnetic properties, and conductivity measurements. The complexes are nonelectrolytes, according to molar conductance measurements. Infrared spectra revealed that the ligand acts as a neutral bidentate moiety in all the compounds. Electronic spectra and effective magnetic moments suggested that the compounds exhibit a tetrahedral shape, which is supported by the experimental data. For further insights into the geometry, bond length, bond angle, electronic characteristics, and thermodynamic factors of the synthesized compounds, a density functional theory (DFT) approach with the basis set GGA-PBE was employed for optimization. The antioxidant evaluation using the DPPH assay demonstrated that all the complexes displayed significant radical scavenging activity when compared to the standard ascorbic acid. Remarkably, the Cu, Zn, Ni, and Mn complexes showed superior radical scavenging activities compared to the other complexes and the standard ascorbic acid. Overall, this research highlights the promising potential of the synthesized complexes as effective antioxidants, showcasing their value for further exploration in various applications related to antioxidant research and potentially in therapeutic contexts. The comprehensive characterization using a range of spectroscopic and computational techniques provides valuable insights into their structure and properties, supporting their potential applications in diverse fields of chemistry.","PeriodicalId":19599,"journal":{"name":"Oriental Journal Of Chemistry","volume":"7 2","pages":""},"PeriodicalIF":0.5,"publicationDate":"2023-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139153380","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Selected Coastal Plants as Potential Treatment for Pneumonia Disease: Determination of Their Phytochemicals and Antibacterial Activity Against some Pneumonia Bacteria","authors":"Wahdini Hanifah, Yosie Andriani, Nor Atikah Mohamed Zin, D. Ryandini, Fadzillah Adibah Abdul Majid, eginer Subhan, Tengku Sifzizul Tengku Muhammad","doi":"10.13005/ojc/390608","DOIUrl":"https://doi.org/10.13005/ojc/390608","url":null,"abstract":"Pneumonia is a respiratory infection caused by microorganisms including bacteria. Current treatment with antibiotics leads to bacterial resistance. An alternative treatment involves utilizing coastal plants. In this study, five parts of eleven coastal plants underwent phytochemicals screening and investigated for their antibacterial activity against five pneumonia bacteria. Cold extraction was performed using hexane and methanol, successively. Qualitative phytochemicals screening and antibacterial testing were done using several reagents and agar well diffusion method, respectively. The results revealed that almost all hexane and methanolic fractions from coastal plants showed antibacterial activity, except Vitex rotundifolia leaves. The highest activity was shown by hexane fraction of Rhodomyrtus tomentosa leaves. Among the methanolic fractions, Syzigium grande twigs exhibited the highest antibacterial property. Phytochemical screening revealed the presence of flavonoids in all active fractions, potentially correlating with their antibacterial activity. In summary, some selected coastal plants have the potential to act as anti-pneumonia bacteria agents.","PeriodicalId":19599,"journal":{"name":"Oriental Journal Of Chemistry","volume":"9 5","pages":""},"PeriodicalIF":0.5,"publicationDate":"2023-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139153446","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Analysis of Forced Degradation Products in Rilpivirine using RP-HPLC and Peak Purity Evaluation","authors":"Abburi Ramarao, Guttikonda Venkata Rao, S. Chinnamaneni, Komati Navya Sri, Mandava Bhagya Tej, Gollammudi Padma Rao, V. Abbaraju, Mandava Venkata Basaveswarao RaoBasaveswarao Rao","doi":"10.13005/ojc/390613","DOIUrl":"https://doi.org/10.13005/ojc/390613","url":null,"abstract":"The primary objective of this research was to delve into the forced degradation products of Rilpivirine hydrochloride (RLP HCl), a crucial non-nucleoside reverse transcriptase inhibitor employed inmanagement of epidemic disease named HIV-1. The investigation utilised the probable of RP-HPLC in tandem with peak purity assessment .In order to simulate conceivable degradation pathways, the study encompassed a gamut of stress conditions like acidic, alkaline, oxidative , thermal and photolytic environments. Authors used Agilent zorbaxEclipse XDB C18 column (150x2.1mm, 1.8µm), RLP and impurities were separated. Buffer as pH of 3.0 and acetonitrile in gradient mode (68:32v/v), flow rate of 0.55ml/min. Volume injected is 3µL and detection wavelength is 220 nm. Temperature is maintained at 55oC by 70:30v/v mixture of water and acetonitrile.System suitability was erect to be within the limits. The average percentage recoveries for impurities were 98% to 101%.The outcomes of this meticulous study unveiled the susceptibilities of RLP to a spectrum of stress factors, in the generation of impurity profile RLP-Amide A, RLP-Amide Band Z-RLP with peak purities. The forced degradation tests demonstrate that the peak of RP-HPLC is spectroscopically pure in all stressed conditions. All degradation products are separated from the main peak and do not interfere with main substance. This exploration not only augments the comprehension of RLP’s stability profile but also underscores the pivotal role of analytical techniques in upholding the safety and efficacy benchmarks of pharmaceutical formulations.","PeriodicalId":19599,"journal":{"name":"Oriental Journal Of Chemistry","volume":"50 2","pages":""},"PeriodicalIF":0.5,"publicationDate":"2023-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139153687","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Structural and Functional Dynamics of Secondary Metabolite from Actinokineospora cibodasensis against Pseudomonas aeruginosa Biofilm","authors":"Sreelakshmi K.S, U. R","doi":"10.13005/ojc/390619","DOIUrl":"https://doi.org/10.13005/ojc/390619","url":null,"abstract":"Biofilm formation has incredible detrimental effects and has brought huge issue to our daily life. Pseudomonas aeruginosa is recognized as an opportunistic pathogen and its one of the antibiotic resistance mechanisms includes biofilm formation. To survive against harsh environmental conditions the microorganisms form an extracellular polymeric substance matrix. Natural products, particularly, marine natural products have been established useful in providing new chemical entities to mark biofilm inhibition and dole out as a rich source of privileged frames for studying chemical as well as biological applications. In the present study, antibiofilm potential of bioextract from Actinokineospora cibodasensis (MW513387) is tested against Pseudomonas aeruginosa (ATCC 27853) biofilm. The analysis of the quorum sensing modulation was done using exopolysaccharide (EPS) quantification and Cytotoxicity assays were performed to check toxicity. Scanning electron microscopy (SEM) was also conducted to visualize the mitigation of biofilm using the biocontrol agent. All the assays conducted evidently indicated that the potential bioactive compound from Actinokineospora cibodasensis has greater inhibition effect against pathogenic biofilm. In the near-term years it is expected that these pharmaceutical compounds from natural source be translated into antibiofilm drugs.","PeriodicalId":19599,"journal":{"name":"Oriental Journal Of Chemistry","volume":"21 8","pages":""},"PeriodicalIF":0.5,"publicationDate":"2023-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139153345","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Preparation and Characterization of Organosiloxanes with A Liquid Crystalline Trans-4-Pentylcyclohexanoate Moiety","authors":"Li-Chuan Wu, Chih-Hung Lin","doi":"10.13005/ojc/390601","DOIUrl":"https://doi.org/10.13005/ojc/390601","url":null,"abstract":"In the course of this research, we successfully created three series of liquid crystalline compounds featuring the trans-cyclohexane structure. One series of compounds featured a double bond at the terminal position of the molecules, whereas the remaining two series incorporated disiloxane and trisiloxane groups. Each series comprised five spacers of different lengths, specifically 3, 4, 5, 6, and 11 methylene units. We identified the structures of the synthesized compounds using Nuclear Magnetic Resonance spectroscopy and characterized their liquid crystalline behavior through thermal analysis and polarized optical microscopy. The results revealed that both the length of the spacer and the presence of siloxane groups significantly influenced the liquid crystal phase transitions, transition temperatures, and temperature ranges. These findings provide valuable insights for designing and developing new liquid crystal materials with tailored properties for various applications.","PeriodicalId":19599,"journal":{"name":"Oriental Journal Of Chemistry","volume":"1 1","pages":""},"PeriodicalIF":0.5,"publicationDate":"2023-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139153179","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Discovery of New Isoniazid Derivatives As Anti-tubercular Agents: In silico Studies, Synthesis, and In vitro Activity Evaluation","authors":"Abida Ash Mohd, Mohd Imran, Noura Yousif Alnaser, Shams Saud Altimyat, Nawaf M. Al-Otaibi, A. Bawadekji","doi":"10.13005/ojc/390610","DOIUrl":"https://doi.org/10.13005/ojc/390610","url":null,"abstract":"This research aimed to discover novel isoniazid (INH) derivatives as anti-tubercular (anti-TB) agents. The chemical structures of isoniazid-based pyridazinone (IBP) derivatives were designed, and their toxicity and pharmacokinetic properties were predicted using the ProTox II and Swiss-ADME databases. The molecular docking of non-toxic IBPs was also performed concerning INH, pyrazinamide (PYZ), ethionamide (ETH), macozinone (MCZ), and BTZ043 utilizing DprE1 enzyme’s proteins (PDB IDs: 4F4Q, 4NCR and 6HEZ). Based on the in silico study results, IBP19, IBP21, IBP22, and IBP29 were selected for their synthesis, and the spectral analysis confirmed their chemical structures. In vitro, anti-TB activity against Mtb H37Rv strain and MTT assay (against HepG2 and Vero cell lines) of IBP19, IBP21, IBP22, and IBP29 were also carried out. A total of eleven non-toxic IBPs were identified with promising pharmacokinetic parameters. The docking score (DS in kcal/mol against 6HEZ protein) of IBP19 (-9.52), IBP21 (-8.78), IBP22 (-9.07), and IBP29 (-9.99) was better than MCZ (-8.76) and BTZ043 (-8.56) revealing their DprE1 enzyme inhibitory action. The in vitro anti-TB activity evaluation (MIC values) confirmed that IBP19 (1.562 µg/ml), IBP21 (1.562 µg/ml), IBP22 (1.562 µg/ml), and IBP29 (1.562 µg/ml) had almost double potency than INH (3.125 µg/ml), and PYZ (3.125 µg/ml). IBP19, IBP21, IBP22, and IBP29 also displayed a CC50 value of > 300 µg/ml against HCL and VCL cell lines. This effect was better than INH (> 200 µg/ml), ETH (> 150 µg/ml), and PYZ (> 200 µg/ml). Accordingly, IBP19, IBP21, IBP22, and IBP29 provide a new template for developing safe and effective novel DprE1 inhibitors.","PeriodicalId":19599,"journal":{"name":"Oriental Journal Of Chemistry","volume":"33 10","pages":""},"PeriodicalIF":0.5,"publicationDate":"2023-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139153332","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effect of Sn-incorporation on the Structural and Optical Properties of ZnO Thin Films Prepared by Sol-Gel Method","authors":"Hansraj Sharma, Sunil Kumar, Jagavendra Yadav, Jagdish Prasad, Mangej Singh","doi":"10.13005/ojc/390614","DOIUrl":"https://doi.org/10.13005/ojc/390614","url":null,"abstract":"In this research, thin films of ZnO doped with Sn were prepared through the sol-gel method. The effects of Sn dopant on optical, morphological and structural studies were investigated. All of the films in this work showed favored orientation along the (002) plane, according to XRD analysis. It was observed by SEM analysis that the study Sn morphological and structural studies were investigated. From AFM pictures it is clear that as the doping concentration rises, the size of the grains on the surface of thin films decreases.The existence of Zn, O and Sn was verified by the EDAX analysis. The Ultraviolet-visible spectroscope was utilized to examine the optical characteristics. That band gap increased with the dopant material percent increased.","PeriodicalId":19599,"journal":{"name":"Oriental Journal Of Chemistry","volume":"1 2","pages":""},"PeriodicalIF":0.5,"publicationDate":"2023-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139153625","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Adaptive Paramagnetism and Photoluminescence in Nitrogen Co-doped Mn: CdS Composite Quantum Dots","authors":"Surya Sekhar Reddy M, Kishore Kumar Y B","doi":"10.13005//ojc/390603","DOIUrl":"https://doi.org/10.13005//ojc/390603","url":null,"abstract":"Manganese-doped cadmium sulfide quantum dots (QDs), co-doped with nitrogen, were synthesized using the chemical co-precipitation method (CPM). Surfactant 2-mercaptoethanol (ME) was used to efficiently regulate the size of these QDs. X-ray diffraction (XRD) analyses verified that the particles fell within the nano-dimension, measuring between 1-2 nm. A Rietveld analysis with X’pert high score software (XPHS) proved that these synthesized QDs contained many phases. The energy dispersive X-ray spectroscopy (EDX) technique confirmed the successful incorporation of both manganese and nitrogen dopants into the CdS. Ultraviolet-visible analysis (UV-Vis) demonstrated a noticeable shift towards the blue end in the energy gap, indicating the presence of a quantum-confinement effect. The photoluminescence (PL) investigations revealed a significant emission peak at λ = 634 nm, linked to the transition from 4T1 to 6A1, attributed to the incorporation of Mn2+ within the CdS core. Electron paramagnetic spectroscopy (EPR) demonstrated paramagnetic characteristics. EPR assessments of the g factor (1.995) and hyperfine splitting constant (A) values (7 mT) verified the existence of nitrogen and manganese ions in the tetrahedral positions of the CdS core. The notable alterations noticed in the magnetic and optical characteristics of the fabricated quantum dots imply promising uses in optoelectronic and magneto-luminescent applications.","PeriodicalId":19599,"journal":{"name":"Oriental Journal Of Chemistry","volume":"57 2","pages":""},"PeriodicalIF":0.5,"publicationDate":"2023-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139154329","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Synthesis, Characterization, Density Functional Theory Studies and Antioxidant Activity of Novel Hydrazone Ligands and their Metal Complexes","authors":"V. Suleman, Abdul Ghany Mohammed Al-Daher","doi":"10.13005/ojc/390624","DOIUrl":"https://doi.org/10.13005/ojc/390624","url":null,"abstract":"Novel hydrazone ligands (HL) derived from 2,5-hexandione and benzoyl hydrazine (HDBH), 2-furoyl hydrazine (HDFH), or 2-picolinoyl hydrazine (HDPH) were used to synthesize mononuclear Mn(II), Co(II), Ni(II), Cu(II), and Zn(II) complexes of the general formula [M(L)2].xH2O (x= 0-3). The hydrazone ligands and the isolated complexes were characterized by, spectral, thermal analysis, molar conductance, and magnetic moment measurements. Beside, density functional theory (DFT) computations have been to study structures and energetic of the ligand and its complexes. The IR spectral information suggests that the ligands exhibit monobasic tridentate behavior through their ONO donor atoms. The metal complexes were determined to possess monomeric octahedral geometry. The DPPH antioxidant capability of both the ligand and their metal complexes was evaluated.","PeriodicalId":19599,"journal":{"name":"Oriental Journal Of Chemistry","volume":"21 3","pages":""},"PeriodicalIF":0.5,"publicationDate":"2023-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139153369","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}