Chemical Data Collections最新文献_第3页

Green synthesis and characterization of silver (Ag) nanoparticles from aqueous bulb extract of Urginea indica (Roxb.) Kunth and its antimicrobial activity 从 Urginea indica（Roxb.

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Chemical Data Collections Pub Date : 2024-06-06 DOI: 10.1016/j.cdc.2024.101150

Uday Sahu, Shriram Kunjam

{"title":"Green synthesis and characterization of silver (Ag) nanoparticles from aqueous bulb extract of Urginea indica (Roxb.) Kunth and its antimicrobial activity","authors":"Uday Sahu, Shriram Kunjam","doi":"10.1016/j.cdc.2024.101150","DOIUrl":"https://doi.org/10.1016/j.cdc.2024.101150","url":null,"abstract":"<div>The present study explores the green synthesis of silver nanoparticles (AgNPs) using Urginea indica (Roxb.) Kunth bulb extract, emphasizes its eco-friendly and cost-effective nature. Characterization techniques, including UV-Vis Spectrophotometer, FTIR spectroscopy, XRD, and TEM, confirmed the successful synthesis, revealing spherical AgNPs with a size range of 9-30 nm. In antimicrobial activity, these nanoparticles exhibited significant growth inhibition activity against bacteria like Pseudomonas aeruginosa (22.66 ± 3.05 mm), S. aureus (15.33 ± 0.57 mm), E. coli (14 ± 1 mm), and fungi like Candida albicans (35.6 mm), with a notable zone of inhibition. The phytochemical analysis of the bulb extract reveals that it has various bioactive compounds, such as phenols, flavonoids, saponins, glycosides, terpenoids, and steroids, likely contributing to the reduction and stabilization of AgNPs. The green synthesis process was used for its simplicity, cleanliness, and lack of pollutants. The study shows how natural resources can be used to develop nanoparticles to fight against increasing drug resistance problems.</div>","PeriodicalId":269,"journal":{"name":"Chemical Data Collections","volume":"52 ","pages":"Article 101150"},"PeriodicalIF":2.218,"publicationDate":"2024-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141328414","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}

引用次数: 0

Rational design, synthesis, and anticancer evaluation of amide derivatives of Pyridin3-yl)imidazo[2,1-b][1,3,4]thiadiazole linked 1,3,4-oxadiazoles 吡啶-3-基)咪唑并[2,1-b][1,3,4]噻二唑与 1,3,4-恶二唑连接的酰胺衍生物的合理设计、合成和抗癌评估

IF 2.218

Chemical Data Collections Pub Date : 2024-06-02 DOI: 10.1016/j.cdc.2024.101147

Khasim Saheb Shaik , Saritha N , Nagendra Reddy G

引用次数: 0

Design, synthesis and biological evaluation of sulfonamide derivatives of Benzothiazol-Quinoline-Pyrazoles as anticancer agents 作为抗癌剂的苯并噻唑-喹啉-吡唑磺酰胺衍生物的设计、合成和生物学评价

IF 2.218

Chemical Data Collections Pub Date : 2024-06-01 DOI: 10.1016/j.cdc.2024.101136

Perugu Edukondalu , Reddymasu Sireesha , Pushpalatha Kavuluri , Paila Suresh , Gadupudi Purna Chandra Rao , Choragudi Chandrasekhar , Rudraraju Ramesh Raju

引用次数: 0

Effects of convective heating and suction/injection on mixed convective flow of a nanofluid over rotating truncated cone 对流加热和吸入/注入对旋转截顶锥上纳米流体混合对流的影响

IF 2.218

Chemical Data Collections Pub Date : 2024-06-01 DOI: 10.1016/j.cdc.2024.101144

Chandaka Uma Sankar , Sreedhar Sobhanapuram , S.V.V Rama Devi , Suresh Maddila

{"title":"Effects of convective heating and suction/injection on mixed convective flow of a nanofluid over rotating truncated cone","authors":"Chandaka Uma Sankar , Sreedhar Sobhanapuram , S.V.V Rama Devi , Suresh Maddila","doi":"10.1016/j.cdc.2024.101144","DOIUrl":"10.1016/j.cdc.2024.101144","url":null,"abstract":"<div>This paper investigates the mixed convective pour of a nanofluid through warmth as well as accumulation transport induced by the vertical rotation of a permeable truncated cone. The study considers convective-type thermal boundary conditions and zero nanoparticle mass flux conditions. The effects of thermophoresis and Brownian motion have been integrated into the present nanofluid model. To transform the coupled non-linear border line sheet equations into dimensionless partial differential equations, a set of non-similarity transformations is introduced. The ensuing PDEs are then numerically figured out using a Spectral collocation method in conjunction with the local linearization technique. To authenticate the numerical technique, the obtained outcomes are in contrast to with established findings in a specific case. The manipulate of a variety of corporeal constraints inactive on the tangential and swirl velocities of the nanofluid, as well as warmth, hard volume fraction, as well as exterior drag, warmth, as well as accumulation transport characteristics, are discussed.</div>","PeriodicalId":269,"journal":{"name":"Chemical Data Collections","volume":"51 ","pages":"Article 101144"},"PeriodicalIF":2.218,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141135220","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}

引用次数: 0

Comments on “volumetric properties of binary mixtures of (ethylene glycol or glycerol + benzene or cyclohexane or hexane) at varying temperatures” 关于 "不同温度下（乙二醇或甘油 + 苯或环己烷或正己烷）二元混合物的体积特性 "的评论

IF 2.218

Chemical Data Collections Pub Date : 2024-06-01 DOI: 10.1016/j.cdc.2024.101130

William E. Acree

引用次数: 0

Ce3+/Ho3+ doped LaPO4 nanomaterials produced by hydrothermal technique for luminescence studies using ethylene glycol (EG) 利用乙二醇（EG）通过水热技术制备的掺杂 Ce3+/Ho3+ 的 LaPO4 纳米材料用于发光研究

IF 2.218

Chemical Data Collections Pub Date : 2024-06-01 DOI: 10.1016/j.cdc.2024.101145

Girija Venkateswara Koneru , Venkata Nagendra Kumar Putta , Sirisha Bandi

{"title":"Ce3+/Ho3+ doped LaPO4 nanomaterials produced by hydrothermal technique for luminescence studies using ethylene glycol (EG)","authors":"Girija Venkateswara Koneru , Venkata Nagendra Kumar Putta , Sirisha Bandi","doi":"10.1016/j.cdc.2024.101145","DOIUrl":"10.1016/j.cdc.2024.101145","url":null,"abstract":"<div>Using the Hydrothermal technique, a series of trivalent Ce3+/Ho3+co-doped LaPO4 nanophosphors were synthesised and exhibited good luminous qualities in both the (UC) and (DC) regimes. At 279–300 nm excitation, DC peaks at 365 nm, 460, 542, and 650 nm were seen, along with a minor non-radiative resonance energy transfer and a highly hazy P-O Charge Transfer (CT) band of Ho3+ions. We find that the (UC) nanophosphor LaPO4: Ce3+/Ho3+allows a strong 980 nm laser stimulation, causing the UC emission spectra to exhibit prominent Ho3+ ion resulting in peaks at 460, 542 and 650 nm as well as weak emission peaks at 300–360 nm. Future applications for these co-doped Ce3+ and Ho3+ ion monoclinic LaPO4 nanocrystals are anticipated to include better optical materials. Ultimately, many potential uses in various industries, from sophisticated display technologies to biomedical imaging and beyond, are made possible by the production and characterisation of co-doped Ce3+/Ho3+ ion nanophosphors in LaPO4 matrices. The realisation of useful systems and technologies utilising the special qualities of these nanocrystals may result from more study and development in these fields.</div>","PeriodicalId":269,"journal":{"name":"Chemical Data Collections","volume":"51 ","pages":"Article 101145"},"PeriodicalIF":2.218,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141137865","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}

引用次数: 0

Corrosion mitigation of (E)-N-benzylidene-4-nitrobenzenamine on mild steel in acidic medium: Experimental and Theoretical Analysis 酸性介质中(E)-N-亚苄基-4-硝基苯胺对低碳钢的腐蚀缓解作用：实验和理论分析

IF 2.218

Chemical Data Collections Pub Date : 2024-05-14 DOI: 10.1016/j.cdc.2024.101143

Ragini L. Minagalavar , S.K. Rajappa , Manohar R. Rathod , Ashok M. Sajjan

{"title":"Corrosion mitigation of (E)-N-benzylidene-4-nitrobenzenamine on mild steel in acidic medium: Experimental and Theoretical Analysis","authors":"Ragini L. Minagalavar , S.K. Rajappa , Manohar R. Rathod , Ashok M. Sajjan","doi":"10.1016/j.cdc.2024.101143","DOIUrl":"10.1016/j.cdc.2024.101143","url":null,"abstract":"<div>The current study focuses on investigating the corrosion-inhibitory characteristics of the Schiff base (E)-N-benzylidene-4-nitrobenzenamine. The efficacy of the compound in preventing mild steel (MS) corrosion in a 1 M HCl solution was assessed using mass loss, potentiodynamic polarization, and electrochemical impedance spectroscopy techniques (EIS). In addition, measurements of polarization resistance suggested that the substance functions as a mixed-type inhibitor, primarily functioning as a cathodic inhibitor. EIS revealed that the compound impedes corrosion by increasing the charge transfer resistance at the interfaces between the metal and solution. The (E)-N-benzylidene-4-nitrobenzenamine compound conformed to the Langmuir adsorption isotherm. Additional confirmation of the development of a protective layer on MS surfaces was established through examinations using SEM (Scanning Electron Microscopy), and AFM (Atomic Force Microscopy). DFT (Density Functional Theory) studies and MD simulations were utilized to augment comprehension of corrosion inhibition mechanisms and adsorption characteristics.</div>","PeriodicalId":269,"journal":{"name":"Chemical Data Collections","volume":"51 ","pages":"Article 101143"},"PeriodicalIF":2.218,"publicationDate":"2024-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141050512","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}

引用次数: 0

Use of Erythrina Variegata Linn as green corrosion inhibitor for steel in 0.5 M Sulphuric acid 将 Erythrina Variegata Linn 用作钢在 0.5 M 硫酸中的绿色缓蚀剂

IF 2.218

Chemical Data Collections Pub Date : 2024-05-09 DOI: 10.1016/j.cdc.2024.101142

Swagata Kalita, Jasdeep Kaur, Akhil Saxena

{"title":"Use of Erythrina Variegata Linn as green corrosion inhibitor for steel in 0.5 M Sulphuric acid","authors":"Swagata Kalita, Jasdeep Kaur, Akhil Saxena","doi":"10.1016/j.cdc.2024.101142","DOIUrl":"https://doi.org/10.1016/j.cdc.2024.101142","url":null,"abstract":"<div>The potential anti-corrosion effect of Erythrina Variegata Linn leaf extract on steel in 0.5 M H2SO4 solution is investigated in this work. On the steel surface, the extract created a layer of protection, which showed maximal efficiency in resisting the corrosion at 88.88%, this was particularly evident at a 1000 mg/L concentration. To verify its potential to inhibit corrosion, a range of analytical methods were used, such as UV, SEM, phytochemical screening, electrochemical measurements, and quantum chemical investigations. The presence of double bonds and heteroatoms in the chemical constituent is responsible for inhibiting corrosion. Instrumentation such as UV analysis provides detailed insights into molecular interactions, aiding in the understanding of inhibitive mechanisms. The corrosion inhibition capacity rises up on increasing Erythrina Variegata Linn till 1000 ppm. Based upon quantum chemical calculations, 6‑hydroxy genistein has more adsorption capacity than Alpinum Isoflavone. This investigation determined the potential utility of Erythrina Variegata Linn leaf extract as a sustainable, environmentally benign inhibitor of steel corrosion in harsh environments like 0.5 M H2SO4.</div>","PeriodicalId":269,"journal":{"name":"Chemical Data Collections","volume":"51 ","pages":"Article 101142"},"PeriodicalIF":2.218,"publicationDate":"2024-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140947156","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}

引用次数: 0

Study of the inhibition of carbon steel corrosion by two pyridazin derivatives in 1 M HCl: Experimental study and theoretical approach✰ 两种哒嗪衍生物在 1 M HCl 中抑制碳钢腐蚀的研究：实验研究与理论方法✰

IF 2.218

Chemical Data Collections Pub Date : 2024-04-30 DOI: 10.1016/j.cdc.2024.101140

H. Zarrok , S. Daoui , N. Benzbiria , A. Barrahi , F. Benhiba , M. Galai , M. Ebn Touhami , I. Warad , K. Karrouchi , N. Benchat , A. Zarrouk

{"title":"Study of the inhibition of carbon steel corrosion by two pyridazin derivatives in 1 M HCl: Experimental study and theoretical approach✰","authors":"H. Zarrok , S. Daoui , N. Benzbiria , A. Barrahi , F. Benhiba , M. Galai , M. Ebn Touhami , I. Warad , K. Karrouchi , N. Benchat , A. Zarrouk","doi":"10.1016/j.cdc.2024.101140","DOIUrl":"https://doi.org/10.1016/j.cdc.2024.101140","url":null,"abstract":"<div>The assessment of the corrosion inhibitory efficacy of two novel pyridine derivatives, specifically (E)-2-(5-(2-chlorobenzyl)-6-oxo-3-styrylpyridazin-1(6H)-yl)acetic acid (CO4) and (E)-6-(4-hydroxystyryl)pyridazin-3(2H)-one (CO38), was conducted through Numerous methods, such as Potentiodynamic polarization (PDP), electrochemical impedance spectroscopy (EIS), scanning electron microscopy (SEM) and Energy Dispersive X-ray (EDX) analysis, UV–visible spectroscopy, and theoretical calculations, were used to evaluate the effectiveness in preventing corrosion for carbon steel (C.S). In response to the increasing demand for environmentally friendly and biodegradable products, CO38 and CO4 inhibitors were used. Tests revealed that CO38 and CO4 inhibitory efficacy increased with concentration, reaching 96.2 % and 93.7 %, respectively. In a 1 M HCl solution, PDP investigations demonstrated that these inhibitors act as mixed-type inhibitors. Scanning electron microscopy (SEM) revealed the creation of protective layers that prevent C.S dissolution in the acid solution. These findings were supported by theoretical investigations that employed density functional theory (DFT) and molecular dynamics (MD) simulations.</div>","PeriodicalId":269,"journal":{"name":"Chemical Data Collections","volume":"51 ","pages":"Article 101140"},"PeriodicalIF":2.218,"publicationDate":"2024-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141090810","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}

引用次数: 0

Valorization of citrus waste using reactive distillation for sustainable biodiesel production 利用反应蒸馏法对柑橘废弃物进行估值，以实现生物柴油的可持续生产

IF 2.218

Chemical Data Collections Pub Date : 2024-04-30 DOI: 10.1016/j.cdc.2024.101141

Shourabh Singh Raghuwanshi, Shivangi Sharma, Tanish Kasera

{"title":"Valorization of citrus waste using reactive distillation for sustainable biodiesel production","authors":"Shourabh Singh Raghuwanshi, Shivangi Sharma, Tanish Kasera","doi":"10.1016/j.cdc.2024.101141","DOIUrl":"https://doi.org/10.1016/j.cdc.2024.101141","url":null,"abstract":"<div>Except for orange juice, the remainder is major waste created during orange processing. Indeed, this residue is an issue in the citrus business since its chemical makeup is more complex than other agro-industrial wastes like peels and seeds. Orange peels conceal within them valuable resources in the form of wax and aromatic oil, comprising a mixture of hydrocarbons and other chemical compounds. While in India, orange peels are typically perceived as domestic waste or consigned to landfills, they possess a rich history of traditional applications in medicine and insect repellent. This study aims to produce biodiesel from orange peel oil via trans-eterification process in reactive distillation transforming waste into wealth. Experimental outcomes demonstrate that revamping the reboiler duty and reflux ratio within specified ranges achieves the highest purity level of 96 %, corresponding to a reboiler duty of 6824.28 BTU/hr and a reflux ratio of 4.Reactive distillation being highly complex and non linear in nature, a time varying control study is must. In view of this, dynamic simulations is performed that reveal at methanol flow rate of 0.07 liters per minute, a reboiler duty of 6810 BTU/hr can be retained corresponding to highest purity level. Characterization of the B20 biodiesel from orange oil (comprising 20.00 % biodiesel and 80.00 % diesel) showcases its suitability, with a basic pH of 7.6, a density of 872 kg/m3, a viscosity of 2 cSt, and a flash point of 180 °C.Economic Analysis is another important aspect of any research. Comparison between the two production processes were made in terms of the economic indicators such as Return-On-Investment (ROI) and payback period. The simulation results show that the reactive distillation catalyzed is more economically advantageous than the conventional process for biodiesel synthesis due to a much higher ROI, and lower payback period.</div>","PeriodicalId":269,"journal":{"name":"Chemical Data Collections","volume":"51 ","pages":"Article 101141"},"PeriodicalIF":2.218,"publicationDate":"2024-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140910389","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}

引用次数: 0