Pub Date : 2018-02-24DOI: 10.4172/2324-8777.1000235
Mazmira Mohamad, R. Ahmed, A. Shaari, S. Goumri‐Said
Interfacial study between thiophene molecule and graphene surface is presented by employing density functional theory methods. To do so, interfacing separation distance is varied from 1.00A to 2.50A. Our reported HOMO-LUMO energy gap values, adsorption energy as well as binding energy show the existence of intermolecular forces accumulated from the attractive van der Waals and Pauli repulsion forces. It is noted subsequently that the growing intermolecular forces are very sensitive even to relatively a small change in the interfacing separation distance between the molecule and surface. In the electronic density of states, dense electrons population of the thiophene/graphene system is found with appearance of spinpolarization at energy Fermi level. Moreover, a slight magnetic behaviour on thiophene molecule, accompanied by a decrease in the magnetization of graphene surface, is observed in the presence of the molecule near to the surface.
{"title":"Thiophene/Graphene Interface Peculiarities for Potential Organic Electronic Applications","authors":"Mazmira Mohamad, R. Ahmed, A. Shaari, S. Goumri‐Said","doi":"10.4172/2324-8777.1000235","DOIUrl":"https://doi.org/10.4172/2324-8777.1000235","url":null,"abstract":"Interfacial study between thiophene molecule and graphene surface is presented by employing density functional theory methods. To do so, interfacing separation distance is varied from 1.00A to 2.50A. Our reported HOMO-LUMO energy gap values, adsorption energy as well as binding energy show the existence of intermolecular forces accumulated from the attractive van der Waals and Pauli repulsion forces. It is noted subsequently that the growing intermolecular forces are very sensitive even to relatively a small change in the interfacing separation distance between the molecule and surface. In the electronic density of states, dense electrons population of the thiophene/graphene system is found with appearance of spinpolarization at energy Fermi level. Moreover, a slight magnetic behaviour on thiophene molecule, accompanied by a decrease in the magnetization of graphene surface, is observed in the presence of the molecule near to the surface.","PeriodicalId":16457,"journal":{"name":"Journal of Nanomaterials & Molecular Nanotechnology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89715061","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}
Pub Date : 2018-02-24DOI: 10.4172/2324-8777.1000236
B. P. Backx, Brunno Rech Pedrosa, Thais Delazare, Fern, A. Damasceno, Otávio Augusto Leitão dos Santos
In the history of mankind, it is feasible to find clothing and medical uses of plants. Metals from bulk to nano proportions were also somehow always present. Uses of metallic nanoparticles have been increasing over the years in applications such as textile industry, remarkably the silver ones. The standard silver nanoparticle synthesis methods can be expensive and cause damage to the environment. Due to that fact, many efforts are being made to elaborate ecofriendly synthesis routes that provide good stability and dispersion in the medium. In this work, peel and leaf extracts from Plinia cauliflora (jabuticaba) are used as a dispersion medium to the silver nanoparticles synthesized with glucose and starch, characterized using Ultraviolet–visible spectroscopy (UV-Vis), Scanning Electronic Microscope (SEM), energy-dispersive spectroscopy (EDX), Nanosight; and preliminarily tested for their antifungal efficiency. The silver nanoparticles are present and confirmed due to the analysis of UV-Vis and dispersed as seen in the generated micrograph. There's also antifungal activity in fungi colonies isolated from the human face and an absorbance peak in the peel extract that may be the influence of the anthocyanins present in the peel's pigment.
{"title":"Green Synthesis of Silver Nanoparticles: A Study of the Dispersive Efficiency and Antimicrobial Potential of the Extracts of Plinia Cauliflora forApplication in Smart Textiles Materials for Healthcare","authors":"B. P. Backx, Brunno Rech Pedrosa, Thais Delazare, Fern, A. Damasceno, Otávio Augusto Leitão dos Santos","doi":"10.4172/2324-8777.1000236","DOIUrl":"https://doi.org/10.4172/2324-8777.1000236","url":null,"abstract":"In the history of mankind, it is feasible to find clothing and medical uses of plants. Metals from bulk to nano proportions were also somehow always present. Uses of metallic nanoparticles have been increasing over the years in applications such as textile industry, remarkably the silver ones. The standard silver nanoparticle synthesis methods can be expensive and cause damage to the environment. Due to that fact, many efforts are being made to elaborate ecofriendly synthesis routes that provide good stability and dispersion in the medium. In this work, peel and leaf extracts from Plinia cauliflora (jabuticaba) are used as a dispersion medium to the silver nanoparticles synthesized with glucose and starch, characterized using Ultraviolet–visible spectroscopy (UV-Vis), Scanning Electronic Microscope (SEM), energy-dispersive spectroscopy (EDX), Nanosight; and preliminarily tested for their antifungal efficiency. The silver nanoparticles are present and confirmed due to the analysis of UV-Vis and dispersed as seen in the generated micrograph. There's also antifungal activity in fungi colonies isolated from the human face and an absorbance peak in the peel extract that may be the influence of the anthocyanins present in the peel's pigment.","PeriodicalId":16457,"journal":{"name":"Journal of Nanomaterials & Molecular Nanotechnology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88883761","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}
Pub Date : 2018-02-24DOI: 10.4172/2324-8777.1000237
Anita Raj Sanwaria, M. Nagar, N. Sharma
Reactions of bis(N-phenylsalicylideneiminato)aluminum(III))-di-(μ- isopropoxo)-di-isopropoxoaluminum (III) with mono-carboxylic acids yield product of the type [C6H4O{CH=N(C6H5)}]2A1(μ-OPri)2Al(OOCR) (OPri)2–n [where R=CH3, C2H5, C3H7 and n=1 or 2). Progress of the reactions was monitored by estimating liberated 2-propanol in benzene-2-propanol azeotrope by oxidimetric method. All the yellow foamy solid products are soluble in common organic solvents. They were characterized by elemental analyses, FT-IR and (1H, 13C and 27Al) NMR spectral studies. Molecular weight measurements in refluxing anhydrous benzene indicate their binuclear nature. Sol-gel hydrolysis of [C6H4O{CH=N(C6H5)}]2Al(μ-OPri)2Al(OPri)2] (A), and representative compounds [C6H4O{CH=N(C6H5)}]2Al(μ- OPri)2Al(OOCCH3)(OPri)] (1) and [C6H4O{CH=N(C6H5)}]2Al(μ- OPri)2Al(OOCCH3)2] (2) followed by sintering at 600° C yielded cubic primitive phase of nano-crystallites of χ-Al2O3 [JCPDF # 040880] in all the cases, as reflected by their powder X-ray diffraction pattern. The IR, SEM and EDX studies also support the formation of the transition alumina.
{"title":"Controlled Sol-Gel Hydrolysis for Synthesis and Characterization of Χ-Al2O3 Nano-Powder Using New Class of Precursors of Bis (N Phenylsalicylideneiminato) Aluminum(III)-Di-(μ-Isopropoxo)-Di-Isopropoxo Aluminum(III) Modified By Mono-Carboxylic Acids","authors":"Anita Raj Sanwaria, M. Nagar, N. Sharma","doi":"10.4172/2324-8777.1000237","DOIUrl":"https://doi.org/10.4172/2324-8777.1000237","url":null,"abstract":"Reactions of bis(N-phenylsalicylideneiminato)aluminum(III))-di-(μ- isopropoxo)-di-isopropoxoaluminum (III) with mono-carboxylic acids yield product of the type [C6H4O{CH=N(C6H5)}]2A1(μ-OPri)2Al(OOCR) (OPri)2–n [where R=CH3, C2H5, C3H7 and n=1 or 2). Progress of the reactions was monitored by estimating liberated 2-propanol in benzene-2-propanol azeotrope by oxidimetric method. All the yellow foamy solid products are soluble in common organic solvents. They were characterized by elemental analyses, FT-IR and (1H, 13C and 27Al) NMR spectral studies. Molecular weight measurements in refluxing anhydrous benzene indicate their binuclear nature. Sol-gel hydrolysis of [C6H4O{CH=N(C6H5)}]2Al(μ-OPri)2Al(OPri)2] (A), and representative compounds [C6H4O{CH=N(C6H5)}]2Al(μ- OPri)2Al(OOCCH3)(OPri)] (1) and [C6H4O{CH=N(C6H5)}]2Al(μ- OPri)2Al(OOCCH3)2] (2) followed by sintering at 600° C yielded cubic primitive phase of nano-crystallites of χ-Al2O3 [JCPDF # 040880] in all the cases, as reflected by their powder X-ray diffraction pattern. The IR, SEM and EDX studies also support the formation of the transition alumina.","PeriodicalId":16457,"journal":{"name":"Journal of Nanomaterials & Molecular Nanotechnology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75353623","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}
Pub Date : 2018-01-01DOI: 10.4172/2324-8777-c3-027
C. Hsiao
{"title":"Atomic resolution characterization of epitaxial structure by using aberration-corrected STEM","authors":"C. Hsiao","doi":"10.4172/2324-8777-c3-027","DOIUrl":"https://doi.org/10.4172/2324-8777-c3-027","url":null,"abstract":"","PeriodicalId":16457,"journal":{"name":"Journal of Nanomaterials & Molecular Nanotechnology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82226707","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}
Pub Date : 2018-01-01DOI: 10.4172/2324-8777-C2-022
C. Gerber
{"title":"Atomic Force Microscopy AFM the ultimate toolkit for Nanoscience and technology","authors":"C. Gerber","doi":"10.4172/2324-8777-C2-022","DOIUrl":"https://doi.org/10.4172/2324-8777-C2-022","url":null,"abstract":"","PeriodicalId":16457,"journal":{"name":"Journal of Nanomaterials & Molecular Nanotechnology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91407007","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}
Pub Date : 2018-01-01DOI: 10.4172/2324-8777-C9-043
R. Lelyana
{"title":"The impact and role of nanoscience on the health benefits and nutritional content of food, drinks and herbs consumed","authors":"R. Lelyana","doi":"10.4172/2324-8777-C9-043","DOIUrl":"https://doi.org/10.4172/2324-8777-C9-043","url":null,"abstract":"","PeriodicalId":16457,"journal":{"name":"Journal of Nanomaterials & Molecular Nanotechnology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85434179","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}
Pub Date : 2018-01-01DOI: 10.4172/2324-8777-C10-048
Amal H Alghamdi
{"title":"Determination of natural radioactivity concentration in consumed nuts and seeds and their implications in the human body","authors":"Amal H Alghamdi","doi":"10.4172/2324-8777-C10-048","DOIUrl":"https://doi.org/10.4172/2324-8777-C10-048","url":null,"abstract":"","PeriodicalId":16457,"journal":{"name":"Journal of Nanomaterials & Molecular Nanotechnology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83545230","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}
Pub Date : 2018-01-01DOI: 10.4172/2324-8777-C8-042
Ayse Demirbaş
{"title":"Synthesis of flower-shaped hybrid nano structures with standard plant molecules and their antimicrobial, peroxidase-like activities","authors":"Ayse Demirbaş","doi":"10.4172/2324-8777-C8-042","DOIUrl":"https://doi.org/10.4172/2324-8777-C8-042","url":null,"abstract":"","PeriodicalId":16457,"journal":{"name":"Journal of Nanomaterials & Molecular Nanotechnology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73242793","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}
Pub Date : 2018-01-01DOI: 10.4172/2324-8777-C11-050
P. Singla
{"title":"Boron nitride nanomaterials: An effective and upcoming approach for water purification","authors":"P. Singla","doi":"10.4172/2324-8777-C11-050","DOIUrl":"https://doi.org/10.4172/2324-8777-C11-050","url":null,"abstract":"","PeriodicalId":16457,"journal":{"name":"Journal of Nanomaterials & Molecular Nanotechnology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79175235","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}
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