Macromolecular Symposia最新文献_第5页

Modeling and Characterization of Ion-Imprinted Polymer for Arsenic Species Removal From Aqueous Solution 离子印迹聚合物去除水中砷的模拟与表征

Macromolecular Symposia Pub Date : 2025-02-17 DOI: 10.1002/masy.202300222

Nurlin Abu Samah

{"title":"Modeling and Characterization of Ion-Imprinted Polymer for Arsenic Species Removal From Aqueous Solution","authors":"Nurlin Abu Samah","doi":"10.1002/masy.202300222","DOIUrl":"https://doi.org/10.1002/masy.202300222","url":null,"abstract":"Arsenic (As) contamination is a global issue, especially in As-rich geological formations. In this study, an ion-imprinted polymer (As(III)-IIP) is synthesized and characterized in terms of kinetic modeling and application via solid phase extraction (SPE). As is detected by using the inductively coupled plasma-mass spectrometer (ICP-MS). The surface study is also included in this study, in which the differences between non-imprinted polymer (NIP) and As(III)-IIP before and after sorption are observed via field electron scanning electron microscope (FESEM). As a result, As(III)-IIP follows the pseudo-second-order of reaction in kinetics and reaches 95% within 5 min of removal. In FESEM micrographs, As(III)-IIP shows the particles on the surface are likely homogenous compared to NIP. Whereas As(III)-IIP after sorption is much more likely bigger than the original As(III)-IIP due to the expansion of particles during agitation in an aqueous solution. In the first cycle, 99.53% ± 0.45% of removal in real wastewater analysis is obtained via SPE. However, for the second cycle onwards, the removal is not removed totally, which shows that a new combination of eluent is required. In conclusion, As(III)-IIP shows good potential as a sorbent to be used for the removal of As from wastewater.","PeriodicalId":18107,"journal":{"name":"Macromolecular Symposia","volume":"414 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143431226","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

Analysis of Physicochemical and Microbiological Characteristics of Surinsar Lake in UT of Jammu & Kashmir, India 印度查谟和克什米尔邦Surinsar湖理化和微生物特征分析

Macromolecular Symposia Pub Date : 2025-02-17 DOI: 10.1002/masy.202400136

Arvind Kumar Yadav, Arushi Mahajan, Tania Sharma, Indu Bhushan, Ikhwan Syafiq Mohd Noor, Muhd Zu Azhan Yahya

引用次数: 0

Exploring the Potential of Hemp Fiber Composites for Sustainable Materials in Engineering Applications 探索大麻纤维复合材料作为可持续材料在工程中的应用潜力

Macromolecular Symposia Pub Date : 2025-02-17 DOI: 10.1002/masy.202300255

Pulkit Srivastava, Ananda Babu Arumugam, Rajeev Kumar, Tarun Yadav, Serguei V. Savilov, Pawan Singh Dhapola, Anant Prakash Agrawal

{"title":"Exploring the Potential of Hemp Fiber Composites for Sustainable Materials in Engineering Applications","authors":"Pulkit Srivastava, Ananda Babu Arumugam, Rajeev Kumar, Tarun Yadav, Serguei V. Savilov, Pawan Singh Dhapola, Anant Prakash Agrawal","doi":"10.1002/masy.202300255","DOIUrl":"https://doi.org/10.1002/masy.202300255","url":null,"abstract":"The growth in the demand of sustainable materials being used in engineering has created a need for research into new and alternative materials. This research article is intended to explore the potential of hemp fiber composites in different promising areas, including environmentally friendly engineering applications. An in-depth analysis of hemp fiber properties has been conducted with a focus on the mechanical thermal and their chemical characteristics which makes hemp fiber more suitable in various engineering applications. Among the mechanical and thermal properties of hemp fiber reinforced composites, careful evaluation of tensile strength, elastic modulus, impact resistance and thermal stability is most important. A detailed study of basic processing methods has been conducted highlighting the recent advances and challenges in the extraction and preparation of hemp fibers. Further in this research the hemp is analyzed in comparison to other alternative materials including natural and synthetic fibres so that the unique benefits of hemp can be highlighted for various engineering applications. The environmental sustainability of hemp fiber composites is also thoroughly studied, emphasizing their biodegradability and positive contribution to life cycle assessment.","PeriodicalId":18107,"journal":{"name":"Macromolecular Symposia","volume":"414 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143431382","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

Synthesis and Characterization of Novel Selenium Bearing 24- and 28-Membered Macrocyclic Schiff Bases and Their Reactivity with Hg (II) Ion 新型含硒24和28元大环席夫碱的合成、表征及其与Hg （II）离子的反应性

Macromolecular Symposia Pub Date : 2025-02-17 DOI: 10.1002/masy.202400176

Bhaskar Banerjee, Rajaneesh Kumar Verma, Nidhi Jain, Tarun Yadav, Mustafa A. Alheetyc, M. Z. A. Yahya, Munendra Singh, Vinay Kumar Verma, Ram Chandra Singh

{"title":"Synthesis and Characterization of Novel Selenium Bearing 24- and 28-Membered Macrocyclic Schiff Bases and Their Reactivity with Hg (II) Ion","authors":"Bhaskar Banerjee, Rajaneesh Kumar Verma, Nidhi Jain, Tarun Yadav, Mustafa A. Alheetyc, M. Z. A. Yahya, Munendra Singh, Vinay Kumar Verma, Ram Chandra Singh","doi":"10.1002/masy.202400176","DOIUrl":"https://doi.org/10.1002/masy.202400176","url":null,"abstract":"The present study reports the synthesis of novel selenium containing 24 (1)- and 28 (2)-membered macrocyclic Schiff base ligands and their reactivity with Hg(II) metal ion to form complex 3 and 4, respectively. The synthesis of the ligands are carried out by a simple condensation of 2,6-dibenzoyl-4-methylphenol and bis(aminoethyl/propyl)selenides in [2+2] dipodal manner in dry acetonitrile solvent under inert atmosphere. Furthermore, the reaction between the 24- and 28-membered selenium containing ligands and Hg(II) metal ion are carried out in dry methanol in argon atmosphere. Following the complexation of both the ligands, 1 (C50H48O2N4Se2) and 2 (C54H56O2N4Se2) when reacted with HgBr2 yields monometallic complexes 3 and 4 with molecular composition of C50H50O3N4Se2HgBr2 and C54H58O3N4Se2HgBr2, respectively, as calculated via elemental analysis and mass spectrometry. Moreover, the synthesized compounds are also characterized by various physicochemical techniques to determine the structure and reactivity, which includes UV–vis, FT-IR, multinuclear (1H and 77Se) NMR, and cyclic voltammetry.","PeriodicalId":18107,"journal":{"name":"Macromolecular Symposia","volume":"414 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143431511","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

Synthesis, Characterization, and Biological Activity of 5-Chloroquinolin-8-ol Complexes 5-氯喹啉-8-醇配合物的合成、表征及生物活性研究

Macromolecular Symposia Pub Date : 2025-02-17 DOI: 10.1002/masy.202400224

Sakar Mubarak Abdalrazaq, Iyad Suleiman Hamad, Afraa Saber Shihab

{"title":"Synthesis, Characterization, and Biological Activity of 5-Chloroquinolin-8-ol Complexes","authors":"Sakar Mubarak Abdalrazaq, Iyad Suleiman Hamad, Afraa Saber Shihab","doi":"10.1002/masy.202400224","DOIUrl":"https://doi.org/10.1002/masy.202400224","url":null,"abstract":"This study involves the preparation of various organic compounds. Ethyl2-((5-chloroquinolin-8-yl)oxy)acetate compound (S1) is synthesized by the addition of potassium carbonate to 5-chloroquinolin-8-ol and ethylchloroacetate. 2-((5-chloroquinolin-8-yl)oxy)acetohydrazide (S2) are prepared by the reaction compound S1with hydrazine. Several complexes of Mannich bases are obtained by the reaction equimolar amounts of compound (S2) with the metal salt solution of cobalt and cadmium (MCln.XH2O) (S3-S5), using ethanol as the solvent. The synthesized compounds and complexes are characterized using various spectroscopic techniques, including Fourier-Transform Infrared (FT-IR) spectroscopy, and nuclear magnetic resonance (1H, 13C-NMR) spectroscopy. Additionally, their melting points, purity, molar conductivity, and magnetic susceptibility are determined. The impact of some prepared compounds and complexes on the growth of two antibiotic-resistant bacterial strains, namely the gram-negative Staphylococcus and the ram-positive Escherichia coli, is studied. Amoxicillin, is used as control antibiotic. Some of the synthesized compounds exhibited significant inhibitory activity against the tested bacterial strains.","PeriodicalId":18107,"journal":{"name":"Macromolecular Symposia","volume":"414 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143431592","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

Molecular Docking Studies of Novel Benzimidazole Macromolecules 新型苯并咪唑大分子的分子对接研究

Macromolecular Symposia Pub Date : 2025-02-17 DOI: 10.1002/masy.202400232

Nuaman F. Alheety, Bilal J. M. Aldahham, Noureddine Raouafi, Ahmed M. Mohammed, Mustafa A. Alheety, Rafaâ Besbes

引用次数: 0

Highly Efficient Ultrasound-Assisted Synthesis, Characterization, and Antibreast Cancer (Invasive Ductal Carcinoma) of New Chalcone Based Compound and Its Nanohybrid With Silver Nanoparticles 新型查尔酮基化合物及其纳米银杂化物的高效超声辅助合成、表征及抗乳腺癌(浸润性导管癌

Macromolecular Symposia Pub Date : 2025-02-17 DOI: 10.1002/masy.202400235

Elaf Abd Al-Hameed Shihab, Maysoon A. Hamad, Batool J. Jubair, Samer H. Ali, Mustafa A. Alheety

{"title":"Highly Efficient Ultrasound-Assisted Synthesis, Characterization, and Antibreast Cancer (Invasive Ductal Carcinoma) of New Chalcone Based Compound and Its Nanohybrid With Silver Nanoparticles","authors":"Elaf Abd Al-Hameed Shihab, Maysoon A. Hamad, Batool J. Jubair, Samer H. Ali, Mustafa A. Alheety","doi":"10.1002/masy.202400235","DOIUrl":"https://doi.org/10.1002/masy.202400235","url":null,"abstract":"In this work, indole-3-carboxaldehyde is used as a synthon to prepare chalcone-based Schiff base. The reaction includes the treatment of indole-3-carboxaldehyde with 1-(4-amino-2-fluorophenyl)ethanone to afford ES1, which reacts with paramethylthiobenzaldehyde to give ES2 with high yield (>95%). The product is characterized by FTIR, CHN, melting point, and 1H NMR. The compound ES2 is decorated on the silver nanoparticles to give a nanoproduct named as Ag NPs-ES. The presented nanocomposite is characterized by XRD and TEM, and the results prove that the product is highly pure and formed as quasisphere nanoparticles within the range of 20–51 nm. The nanoproduct is used for the treatment of breast cancer cell lines (in vitro) that consist of 77% of invasive ductal carcinoma (IDC), 10% of invasive lobular carcinoma (ILC), and 2% of tubular carcinoma, in addition to 11% of invasive papillary, medullary carcinoma. The results demonstrate that the nanoproduct is able to give only 2% of cancer cell viability with IC50 equal to 1.726 mg/ml with no toxicity on the normal human cell line (HDFn).","PeriodicalId":18107,"journal":{"name":"Macromolecular Symposia","volume":"414 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143431622","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

Propolis Edible Coating Improves Antibacterial Feature of Banana Leaf-Based Traditional Packaging 蜂胶可食用涂层改善了香蕉叶传统包装的抗菌特性

Macromolecular Symposia Pub Date : 2025-02-17 DOI: 10.1002/masy.202400151

Jeannette Laurent, Ata Aditya Wardana, R. Haryo Bimo Setiarto

引用次数: 0

Chemical Treatment of Moringa Seed Peels for the Efficient Removal of Methylene Blue Macromolecule: Kinetic And Thermodynamic Calculations 辣木籽皮化学处理对亚甲基蓝大分子的有效去除：动力学和热力学计算

Macromolecular Symposia Pub Date : 2025-02-17 DOI: 10.1002/masy.202400223

Ibtisam Abdul Wahed Khalaf, Saddam Mohammed Al-Mahmoud

引用次数: 0

Imprinted Effects on the Boric Acid Removal from Water by Molecularly Imprinted Polymer: Synthesis and Characterization 印迹对分子印迹聚合物去除水中硼酸的影响：合成与表征

Macromolecular Symposia Pub Date : 2025-02-17 DOI: 10.1002/masy.202300223

Nurjannah Salim, Kamrul Fakir Kamarudin, Nurlin Abu Samah

{"title":"Imprinted Effects on the Boric Acid Removal from Water by Molecularly Imprinted Polymer: Synthesis and Characterization","authors":"Nurjannah Salim, Kamrul Fakir Kamarudin, Nurlin Abu Samah","doi":"10.1002/masy.202300223","DOIUrl":"https://doi.org/10.1002/masy.202300223","url":null,"abstract":"In the present work, a study of boron removal from water using molecularly imprinted polymer-boric acid (MIP-BA) is conducted. This study is significant as it can be an addition for removing boric species, particularly in cases when carbon in tertiary treatment is ineffective. Kinetic study, saturation study and pH effect are among the parameters chosen to characterize the sorption characteristics of MIP-BA using Inductively Coupled Plasma-Optical Emission Spectroscopy (ICP-OES) detection. In the kinetic study in batch mode, boron is removed at an efficiency removal of 80.18% after 5 mins before stabilizing over 60 min. The adsorption process is deduced to be chemisorption in adsorption kinetic modelling studies. In the saturation study, the adsorption capacity of MIP-BA is increased. The adsorption isotherm study conveyed that there is a monolayer adsorption on homogenous surface of MIP-BA as Langmuir's model posted a R2 value of 0.9932 bettering 0.9832 posted by Freundlich's model. The optimal pH for boron removal is pH 8.7 (87.93%). The hydroxyl group readily forms covalent bonds with boron when reacted with boric acid in alkali medium. Non imprinted polymer (NIP) is effective at extracting boron from water, reducing the cost of cleaning the polymer with a Soxhlet equipment.","PeriodicalId":18107,"journal":{"name":"Macromolecular Symposia","volume":"414 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143431227","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