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Characterization and Application of Nanomaterials最新文献

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Biosynthesis of silver nanoparticles with Chlorella sp. 小球藻生物合成纳米银的研究。
Characterization and Application of Nanomaterials Pub Date : 2022-04-26 DOI: 10.24294/can.v5i1.1690
Fredy Andrés Gonzalez Ortiz, Daniel Torrenegra Escorcia, A. A. Albis Arrieta
{"title":"Biosynthesis of silver nanoparticles with Chlorella sp.","authors":"Fredy Andrés Gonzalez Ortiz, Daniel Torrenegra Escorcia, A. A. Albis Arrieta","doi":"10.24294/can.v5i1.1690","DOIUrl":"https://doi.org/10.24294/can.v5i1.1690","url":null,"abstract":"This work shows the results of the biosynthesis of silver nanoparticles using the microalga Chlorella sp, using growth media with different concentrations of glycerol, between 5%–20%, and different light and temperature conditions. The synthesis of nanoparticles was studied using supernatants and pellets from autotrophic, heterotrophic and mixotrophic cultures of the microalga. The presence of nanoparticles was verified by ultraviolet-visible spectroscopy and the samples showing the highest concentration of nanoparticles were characterized by scanning electron microscopy. The mixotrophic growth conditions favored the excretion of exopolymers that enhanced the reduction of silver and thus the formation of nanoparticles. The nanoparticles obtained presented predominantly ellipsoidal shape with dimensions of 108 nm x 156 nm and 87 nm x 123 nm for the reductions carried out with the supernatants of the mixotrophic cultures with 5% and 10% glycerol, respectively.","PeriodicalId":331072,"journal":{"name":"Characterization and Application of Nanomaterials","volume":"66 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120948517","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
Allophane, a natural nanoparticle present in andisols of equatorial Ecuador, properties and applications 一种存在于赤道厄瓜多尔的天然纳米粒子，性质和应用
Characterization and Application of Nanomaterials Pub Date : 2022-04-17 DOI: 10.24294/can.v5i1.1689
Jorge Silva-Yumi, Roberto Cazorla Martínez, Carlos Medina Serrano, Gabriela Chango Lescano
{"title":"Allophane, a natural nanoparticle present in andisols of equatorial Ecuador, properties and applications","authors":"Jorge Silva-Yumi, Roberto Cazorla Martínez, Carlos Medina Serrano, Gabriela Chango Lescano","doi":"10.24294/can.v5i1.1689","DOIUrl":"https://doi.org/10.24294/can.v5i1.1689","url":null,"abstract":"Allophane is a natural nanoparticle present in soils of volcanic origin such as andisols, which are distributed around the world in countries with volcanic activity. In Ecuador, andisols constitute 30% of the territory in high and humid areas of the northern highlands. Allophane can be obtained from andisols through physical and chemical processes, or it can be synthesized. This nanomaterial has multiple properties for various applications in different areas. There is a lot of research on these nanoparticles and this type of soils, but they have not been studied yet in Ecuador. In this article, the structural characteristics, properties, formation, isolation, synthesis and uses of allophane are presented, with the finish of generating knowledge and encouraging research on these soils that are the source of the aforementioned nanoparticle. The literature search was performed in Science Direct and Google Scholar databases, and high impact articles related to natural or synthetic allophane research were used. The particular characteristics that allophane has allows it to be used as an environmental remediator, bactericide, anti-inflammatory, flame retardant, enzyme support, but in addition it has been studied in catalysis, photocatalysis and electrocatalysis. Considering the area covered by allophane in the Ecuadorian territory and its availability, it can be used for research based on international studies that have been developed to take advantage of it in the environmental and medical areas.","PeriodicalId":331072,"journal":{"name":"Characterization and Application of Nanomaterials","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124433104","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 of carbon nanostructures using the chemical vapor deposi-tion technique: An overview 利用化学气相沉积技术合成碳纳米结构:综述
Characterization and Application of Nanomaterials Pub Date : 2022-04-12 DOI: 10.24294/can.v5i1.1682
Ali Roberto Ruiz Hernández, Adrián Gutiérrez Cruz, Daniela Luna, J. F. Vega, Gerardo Patino Guillén, Alan Arceta Lozano, J. Campos-Delgado
{"title":"Synthesis of carbon nanostructures using the chemical vapor deposi-tion technique: An overview","authors":"Ali Roberto Ruiz Hernández, Adrián Gutiérrez Cruz, Daniela Luna, J. F. Vega, Gerardo Patino Guillén, Alan Arceta Lozano, J. Campos-Delgado","doi":"10.24294/can.v5i1.1682","DOIUrl":"https://doi.org/10.24294/can.v5i1.1682","url":null,"abstract":"The boom in nanotechnology over the last three decades is undeniable. Responsible for this interest in nanomaterials are mainly the nanostructured forms of carbon, since historically they were the ones that inaugurated the study of nanomaterials with the discovery of fullerenes in 1985 and carbon nanotubes in 1991. Although a variety of techniques exist to produce these materials, chemical vapor deposition (CVD) is particularly valuable as it allows the production of a wide variety of carbon nanostructures, is versatile, scalable, easy to implement and relatively low cost. This review article highlights the importance of CVD and details its principles, operating conditions and parameters, as well as its main variants. A description of the technique used to produce fullerenes, nano-ceramics, carbon nanotubes, nanospheres, graphene and others is made, emphasizing the specific parameters for each synthesis.","PeriodicalId":331072,"journal":{"name":"Characterization and Application of Nanomaterials","volume":"63 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134184759","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: 1
Application of nanotechnology in ophthalmology: Where are we? 纳米技术在眼科中的应用:进展如何?
Characterization and Application of Nanomaterials Pub Date : 2022-03-31 DOI: 10.24294/can.v5i1.1681
Marcela Gómez-Garzón, M. A. Martínez-Ceballos, A. Gómez-López, A. Rojas-Villarraga
{"title":"Application of nanotechnology in ophthalmology: Where are we?","authors":"Marcela Gómez-Garzón, M. A. Martínez-Ceballos, A. Gómez-López, A. Rojas-Villarraga","doi":"10.24294/can.v5i1.1681","DOIUrl":"https://doi.org/10.24294/can.v5i1.1681","url":null,"abstract":"Nanotechnology is a subject that studies, processes, and applies various functional materials, equipment, and systems, and controls substances on a nanoscale. Nanomedicine refers to its application in diagnosing, treating, preventing, and monitoring various diseases. Drugs administered through eye drops must travel a long distance to avoid various eye barriers reaching the posterior segment of the eye, to achieve the lowest drug level. This review focuses on nanotechnology-based eye disease treatment systems and highlights the obstacles affecting the drug management of eyes and nano-systems for the treatment of eye diseases. This paper summarizes the development prospect of nanotechnology and the challenges it faces in the treatment and diagnosis of ophthalmic diseases, to provide information and new ideas for the implementation of treatment and the development of a refractory eye disease management system.","PeriodicalId":331072,"journal":{"name":"Characterization and Application of Nanomaterials","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114939022","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: 1
Nanotechnology, architecture and art 纳米技术、建筑和艺术
Characterization and Application of Nanomaterials Pub Date : 2022-03-09 DOI: 10.24294/can.v5i1.1680
Adriana Lira Oliver, A. Oliver
{"title":"Nanotechnology, architecture and art","authors":"Adriana Lira Oliver, A. Oliver","doi":"10.24294/can.v5i1.1680","DOIUrl":"https://doi.org/10.24294/can.v5i1.1680","url":null,"abstract":"In the past three decades, nanotechnology has attracted extensive attention. People have many expectations on the utilization of nanotechnology in medicine, but unfortunately, these expectations are unlikely to be realized. In the field of nanotechnology, the niche for building commercial products has not been developed yet. However, metal nanoparticles have attracted people’s attention since ancient times because of their optical properties, which are very different from those of bulk metals. By understanding the origin of these optical properties and using current technology, these nanoparticles can be manipulated to build a palette. Using micro measurement equipment, the palette can be printed with very good resolution.","PeriodicalId":331072,"journal":{"name":"Characterization and Application of Nanomaterials","volume":"873 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-03-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133842956","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
Research progress on the electrospinning nanofiber lithium-ion battery separators 静电纺丝纳米纤维锂离子电池隔膜的研究进展
Characterization and Application of Nanomaterials Pub Date : 2022-03-03 DOI: 10.24294/can.v5i1.1429
Yan Zhang, Bin Yu, Mengzhen Zhai, Xiaohan Wang
{"title":"Research progress on the electrospinning nanofiber lithium-ion battery separators","authors":"Yan Zhang, Bin Yu, Mengzhen Zhai, Xiaohan Wang","doi":"10.24294/can.v5i1.1429","DOIUrl":"https://doi.org/10.24294/can.v5i1.1429","url":null,"abstract":"Electrospinning nanofiber membrane has the advantages of wide raw materials, large specific surface area, and high porosity. It is an ideal separator material for lithium-ion batteries. This paper first introduces two common electrospinning nanofiber diaphragms: polymer, polymer, and inorganic composite, and then focuses on the modification methods of composite modification, blending modification, and inorganic modification, as well as the methods of electrospinning nano modified polyolefin diaphragm. Finally, the development direction of the electrospinning lithium-ion battery separator has prospected.","PeriodicalId":331072,"journal":{"name":"Characterization and Application of Nanomaterials","volume":"203 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114402075","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
Research progress in applying nanomaterials in the field of functional textiles 纳米材料在功能纺织品领域的应用研究进展
Characterization and Application of Nanomaterials Pub Date : 2022-03-03 DOI: 10.24294/can.v5i1.1431
Fangru Wu, Jinlong Ge, Yingyue Qin, Zongqun Li, Q. Li
{"title":"Research progress in applying nanomaterials in the field of functional textiles","authors":"Fangru Wu, Jinlong Ge, Yingyue Qin, Zongqun Li, Q. Li","doi":"10.24294/can.v5i1.1431","DOIUrl":"https://doi.org/10.24294/can.v5i1.1431","url":null,"abstract":"The ways of developing functional textiles based on nanomaterials were introduced, and the latest research achievements of nanomaterials in such aspects as flame retardancy, antibacterial, super-hydrophobic, self-cleaning, UV resistance, and anti-static textiles were reviewed. The main technical obstacles to the large-scale application of nanomaterials in functional textiles were pointed out, the possible solutions were discussed, and the development of functional textiles by nanomaterials has been prospected.","PeriodicalId":331072,"journal":{"name":"Characterization and Application of Nanomaterials","volume":"100 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121287938","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: 1
The comparable study of isoelectronic-bodies of single-walled B/N nanotubes 单壁B/N纳米管等电子体的比较研究
Characterization and Application of Nanomaterials Pub Date : 2022-01-28 DOI: 10.24294/can.v5i1.1416
Hua Zhao, Chun-Yan Tian, Suna Wang, D. Sun, Chong Zhang
{"title":"The comparable study of isoelectronic-bodies of single-walled B/N nanotubes","authors":"Hua Zhao, Chun-Yan Tian, Suna Wang, D. Sun, Chong Zhang","doi":"10.24294/can.v5i1.1416","DOIUrl":"https://doi.org/10.24294/can.v5i1.1416","url":null,"abstract":"he structure, thermodynamic stability, ionization potential (IP) and electron affinity (EA) energy level difference (Eg) and tension of lowest unoccupied orbit (LUMO) and highest occupied orbit (HOMO) of armchair single wall carbon nanotubes (C-NTs), BN hybrid carbon nanotubes (BC2N-NTs) and all BN nanotubes (BN-NTs) were systematically studied with AM1 method in this paper. Calculation results show that when n value is constant, (n, n) C-NTs (n = 3,4,5,6) has the largest diameter and BN-NTs has the smallest diameter; (n, n) the values of Eg (HOMO-LUMO) and n of C-NTs and BC2N-NTs are related; POAV analysis shows that different hybrid atoms have different contributions to the hybrid mode of nanotube atoms and the tension of nanotubes.","PeriodicalId":331072,"journal":{"name":"Characterization and Application of Nanomaterials","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-01-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123045608","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
Preparation of PbTiO3-CdS nanocomposite material and its microstructure and photocatalytic properties PbTiO3-CdS纳米复合材料的制备及其微观结构和光催化性能
Characterization and Application of Nanomaterials Pub Date : 2022-01-25 DOI: 10.24294/can.v5i1.1409
Mingdong Xu, Wenqiang Li, Shunguo Liu, Zhang Tao, S. Yin, S. Lai
{"title":"Preparation of PbTiO3-CdS nanocomposite material and its microstructure and photocatalytic properties","authors":"Mingdong Xu, Wenqiang Li, Shunguo Liu, Zhang Tao, S. Yin, S. Lai","doi":"10.24294/can.v5i1.1409","DOIUrl":"https://doi.org/10.24294/can.v5i1.1409","url":null,"abstract":"In order to explore the influence of the ferroelectric surface on the structure and properties of semiconductor oxides, the growth of CdS nanocrystals was regulated and controlled by taking single-crystal perovskite PbTiO3 nanosheets as the substrate through a simple hydrothermal method. Through composition design, a series of PbTiO3-CdS nanocomposite materials with different loading concentrations were prepared, and their microstructure and photocatalytic properties were systematically analyzed. Studies show that in the prepared product, CdS nanoparticles selectively grow on the surfaces of PbTiO3 nanosheets, and their morphology is affected by the exposed surfaces of PbTiO3 nanosheets. There is a clear interface between the PbTiO3 substrate and CdS nanoparticles. The concentration of the initial reactant and the time of hydrothermal reaction also significantly affect the crystal morphology of CdS. Photocatalysis studies have shown that the prepared PbTiO3-CdS nanocomposite material has a significant degradation effect on 10 mg/L of Rhodamine B aqueous solution. The degradation efficiency rises with the increase of CdS loading concentration. When degrading 10 mg/L Rhodamine B aqueous solution, the PbTiO3-CdS sample with a mass fraction of 3% can reach a degradation rate of 72% within 120 min.","PeriodicalId":331072,"journal":{"name":"Characterization and Application of Nanomaterials","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-01-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129161194","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: 1
Preparation of MOF/Au composite nanoparticles and their SERS properties MOF/Au纳米复合材料的制备及其SERS性能
Characterization and Application of Nanomaterials Pub Date : 2022-01-08 DOI: 10.24294/can.v5i1.1412
Huihui Liu, Baichuan Zhao, Congyun Zhang
{"title":"Preparation of MOF/Au composite nanoparticles and their SERS properties","authors":"Huihui Liu, Baichuan Zhao, Congyun Zhang","doi":"10.24294/can.v5i1.1412","DOIUrl":"https://doi.org/10.24294/can.v5i1.1412","url":null,"abstract":"Surface-enhanced Raman scattering (SERS) spectrum has the characteristics of fast-detection, high-sensitivity and low-requirements for sample pretreatment. It plays a more and more important role in the detection of organic pollutants. In this study, MIL-101 and Au nanoparticles were prepared by hydrothermal method and aqueous solution reduction method respectively, and MIL-101/Au composite nanoparticles were prepared by electrostatic interaction. The SERS properties of the composite substrate were optimized by adjusting the size of Au nanoparticles and the surface distribution density of MIL-101 nanoparticles. The detection limit of Rhodamine 6G (R6G) for the composite substrate with the optimal ratio was investigated, which was as low as 10–11 M. It is proved that MIL-101/Au composite nanoparticles have high sensitivity to probe molecules. When they are applied to the detection of persistent organic pollutants, the detection limit for fluoranthene can reach 10–9 M and for 3,3’,4,4’-tetrachlorobiphenyl (PCB-77) can reach 10–5 M.","PeriodicalId":331072,"journal":{"name":"Characterization and Application of Nanomaterials","volume":"75 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-01-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130671374","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: 1
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