Colloid & Nanoscience Journal最新文献

Poly(methyl methacrylate)/ bacterial cellulose nanofiber nanocomposites prepared by solution casting method and its reinforcement study 溶液浇铸法制备的聚甲基丙烯酸甲酯/细菌纤维素纳米纤维复合材料及其加固研究

Colloid & Nanoscience Journal Pub Date : 2024-01-02 DOI: 10.61186/cnj.1.4.203

Hossein Asiani, Mojdeh Mirshafiei

{"title":"Poly(methyl methacrylate)/ bacterial cellulose nanofiber nanocomposites prepared by solution casting method and its reinforcement study","authors":"Hossein Asiani, Mojdeh Mirshafiei","doi":"10.61186/cnj.1.4.203","DOIUrl":"https://doi.org/10.61186/cnj.1.4.203","url":null,"abstract":"Bacterial cellulose nanofibers as biobased reinforcement with biodegradability, renewability and good physical properties for the lightweight construction design of polymer composite materials with high performance are often explored. The current work addresses the fabrication of a series types of poly(methyl methacrylate) (PMMA) composites consisting of three different concentrations of bacterial cellulose nanofiber (BCNF) networks (1, 2, and 3 Wt.%) by solution casting method. The prepared PMMA/BCNF was characterized with scanning electron microscopy and thermogravimetric analysis (TGA). It was evident that the PMMA/BCNF nanocomposite film (1 Wt.%) has a flat and smooth surface and the BCNF filler is scattered on the PMMA surface matrix but barely detected in the PMMA/BCNF composite film due to the compatibility between the PMMA matrix and BCNF filler. TGA analysis demonstrates that plots shifted to higher temperatures with the increase of BCNF concentration in PMMA matrix. The wettability and mechanical properties of obtained composite films were studied and compared to neat PMMA. The results show that the PMMA/BCNF nanocomposite film (1 Wt.%) has the best hydrophilicity and mechanical properties such as tensile strength, tensile strain, and Young’s modulus. This work is intended to spur all researchers to more research and development for enhanced potential application of PMMA nanocomposites that are reinforced with BCNF in a wide application fields such as photocatalysis-wastewater treatment, packaging, flexible screens, optically transparent films","PeriodicalId":325688,"journal":{"name":"Colloid & Nanoscience Journal","volume":"13 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139631004","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

Volumetric, compressibility and conductometric studies of L-histidine in aqueous poly ethylene glycol solutions at different temperatures 不同温度下l -组氨酸在聚乙二醇水溶液中的体积学、压缩性和电导学研究

Colloid & Nanoscience Journal Pub Date : 2023-05-01 DOI: 10.52547/cnj.1.2.74

H. Iloukhani, K. Khanlarzadeh, Tahereh Moradian

{"title":"Volumetric, compressibility and conductometric studies of L-histidine in aqueous poly ethylene glycol solutions at different temperatures","authors":"H. Iloukhani, K. Khanlarzadeh, Tahereh Moradian","doi":"10.52547/cnj.1.2.74","DOIUrl":"https://doi.org/10.52547/cnj.1.2.74","url":null,"abstract":"Polymers are a versatile class of materials that have a wide range of applications, due to their unique physical and chemical properties. In this study, the effect of molar mass of PEG and temperature on the thermodynamic properties of aqueous solutions of L-histidine, has been studied. For this purpose, density, sound velocity and specific conductivity for solutions of L-histidine in pure water and in aqueous solutions of 0.02 w/w of PEG400, PEG2000 and PEG6000 have been measured at T = (298.15, 308.15 and 318.15) K. From the values of experimental density and sound velocity, the apparent molar volume, ɸ ʋ and apparent molar isentropic compressibility, ɸ K were calculated and extrapolated to infinite dilution. The transfer apparent molar volume at infinite dilution, ɸ and the transfer apparent molar isentropic compressibility, ɸ of L-histidine from water to aqueous PEG solutions have been studied. Also, by using of the measured specific conductivity for the investigated solutions in this work, molar conductivity Λ was calculated. The results show that the values of Λ for all the examined systems decrease with the increase in the concentration of amino acid.","PeriodicalId":325688,"journal":{"name":"Colloid & Nanoscience Journal","volume":"50 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125020494","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

Effects of zinc oxide nanoparticles on neuronal response of pyramidal neuron of the CA1 hippocampus in rat model of parkinson's disease 氧化锌纳米颗粒对帕金森病模型大鼠CA1海马锥体神经元反应的影响

Colloid & Nanoscience Journal Pub Date : 2023-05-01 DOI: 10.52547/cnj.1.2.62

Mohammad Mohammad Ali Mansouri

引用次数: 0

Co-deposition of COOH-POSS on the surface of PES nanofiltration membranes for improving the permeability and anti-fouling properties COOH-POSS在PES纳滤膜表面共沉积以提高其渗透性和防污性能

Colloid & Nanoscience Journal Pub Date : 2023-05-01 DOI: 10.52547/cnj.1.2.83

Zahra Safikhani, A. Moghadassi, S. Bandehali, F. Ahmadi, Maryam Ghafari

{"title":"Co-deposition of COOH-POSS on the surface of PES nanofiltration membranes for improving the permeability and anti-fouling properties","authors":"Zahra Safikhani, A. Moghadassi, S. Bandehali, F. Ahmadi, Maryam Ghafari","doi":"10.52547/cnj.1.2.83","DOIUrl":"https://doi.org/10.52547/cnj.1.2.83","url":null,"abstract":"In this study, a new type of polyethersulfone (PES)-based nanofiltration (NF) membrane was fabricated through the modification of membranes surface by using 4-aminobutyric acid-functionalized glycidyl POSS for the improvement of the physicochemical properties and membrane separation performance. Scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR), and 3D surface images, pure water flux, water content, water contact angle, salt rejection were used in membrane characterization. The SEM images showed the finger like structure for the modified membranes. Moreover, the SEM images of the membrane surface revealed the excellent dispersion of modified POSS particles on the membrane surface. The water content angle of fabricated membranes declined compared to the virgin PES membrane that indicates the enhancement of membrane hydrophilicity. Water content of the fabricated membranes enhanced from 68% for the neat PES membrane to 77.55% for the one fabricated membrane. However, the pure water flux revealed the decline trend. But among prepared membranes, M3 at 1.5 wt.% COOH-POSS concentration showed the best CrSO 4 rejection (80%) and Na 2 SO 4 rejection (62%). Moreover, M1 at 0.5 wt.% of COO-POSS showed the Pb(NO 3 ) 2 and Cu(NO 3 ) 2 rejection 83% and 80%, respectively","PeriodicalId":325688,"journal":{"name":"Colloid & Nanoscience Journal","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115959066","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 NaP zeolite@Fe3O4 /Am-Py as a Micro-Meso Structure 微-介观结构NaP zeolite@Fe3O4 /Am-Py的合成与表征

Colloid & Nanoscience Journal Pub Date : 2023-05-01 DOI: 10.52547/cnj.1.2.102

Z. Mortezaei, M. Zendehdel

引用次数: 0

Kinetic roughening and magnetic study of Co electrodeposited thin films Co电沉积薄膜的动力学粗化及磁性研究

Colloid & Nanoscience Journal Pub Date : 2023-05-01 DOI: 10.52547/cnj.1.2.97

M. Goodarzi, K. Hedayati

引用次数: 0

Effect of surfactant type on the particle dispersion in Ag/polystyrene nanocomposite prepared by microemulsion method 表面活性剂类型对微乳液法制备银/聚苯乙烯纳米复合材料中颗粒分散的影响

Colloid & Nanoscience Journal Pub Date : 2023-05-01 DOI: 10.52547/cnj.1.2.112

Fahimeh Alimohamadi, A. Salabat