The 3rd International Online-Conference on Nanomaterials最新文献_第3页

Self-Assembly of Y-Shaped Polymer Brushes with Low Poly-Dispersity 低聚分散性y型聚合物刷的自组装

The 3rd International Online-Conference on Nanomaterials Pub Date : 2022-04-22 DOI: 10.3390/materproc2022009026

Petr Fridrich, Zbyšek Posel

引用次数: 0

Novel Electrodes Based on the Electropolymerized Nanocoatings for the Selective Voltammetric Quantification of Flavanones 基于电聚合纳米涂层的新型电极选择性伏安定量黄酮

The 3rd International Online-Conference on Nanomaterials Pub Date : 2022-04-22 DOI: 10.3390/materproc2022009013

G. Ziyatdinova, E. Yakupova, A. Zhupanova

{"title":"Novel Electrodes Based on the Electropolymerized Nanocoatings for the Selective Voltammetric Quantification of Flavanones","authors":"G. Ziyatdinova, E. Yakupova, A. Zhupanova","doi":"10.3390/materproc2022009013","DOIUrl":"https://doi.org/10.3390/materproc2022009013","url":null,"abstract":": Chemically modified electrodes based on polymer nanocoatings as sensitive layers are one of the intensively developed areas in modern electroanalysis. Electropolymerization of compounds containing phenolic fragments is a promising approach for electrode surface modification. Novel electrodes based on a combination of carbon nanotubes and electropolymerized ellagic acid or aluminon were developed for the direct quantification of flavanones (naringin and hesperidin)— the major flavonoids of Citrus fruits. Conditions of monomers’ potentiodynamic electropolymerization were optimized. Electrodes surface was characterized by scanning electron microscopy and electrochemical methods. A glassy carbon electrode (GCE) modified with multi-walled carbon nanotubes (MWCNTs) and poly(ellagic acid) allowed quantification of naringin in the ranges of 0.050–1.0 and 1.0–100 µM with the detection and quantification limits of 14 and 47 nM, respectively. Simultaneous voltammetric quantification of naringin and hesperidin in the ranges of 0.10–2.5 and 2.5–25 µM for both analytes with the detection limits of 20 nM and 29 nM for naringin and hesperidin, respectively, was achieved on GCE modified with polyaminobenzene sulfonic acid functionalized single-walled carbon nanotubes (f-SWCNTs) and polyaluminon. High selectivity of the elec-trodes’ response to flavanones in the presence of typical interferences and natural phenolics was confirmed. The approaches were successfully applied to citrus juices.","PeriodicalId":336049,"journal":{"name":"The 3rd International Online-Conference on Nanomaterials","volume":"50 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124011396","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

Metal-Catechol Network (MCN) Based Bioactive Surface Engineering of Iron Reinforced Hydroxyapatite Nanorods for Bone Tissue Engineering 基于金属-儿茶酚网络(MCN)的铁增强羟基磷灰石纳米棒生物活性表面工程用于骨组织工程

The 3rd International Online-Conference on Nanomaterials Pub Date : 2022-04-22 DOI: 10.3390/materproc2022009016

Zahid Hussain, Ismat Ullah, Zhuangzhuang Zhang, R. Pei

{"title":"Metal-Catechol Network (MCN) Based Bioactive Surface Engineering of Iron Reinforced Hydroxyapatite Nanorods for Bone Tissue Engineering","authors":"Zahid Hussain, Ismat Ullah, Zhuangzhuang Zhang, R. Pei","doi":"10.3390/materproc2022009016","DOIUrl":"https://doi.org/10.3390/materproc2022009016","url":null,"abstract":": Hydroxyapatite (HAp) is a calcium phosphate-based inorganic constitute in bones and teeth. The synthesis of nanostructured rods that mimic the natural bone apatite has attracted signiﬁcant attention. Unfortunately, pristine HAp is unsuitable for clinical translation due to its brittleness, limited strength, uncontrolled leaching, and poor surface properties. These limitations necessitate size reduction, surface modiﬁcation, and ion incorporation to expand their scope in bone reconstruction. Herein, iron-reinforced hydroxyapatite nanorods (Fe-HAp) were used as an inorganic component, and catechol-modiﬁed gelatin methacryloyl was employed as a surface functional modiﬁer agent. Our study highlighted that Fe-doped HAp nanomaterials are more promising for developing bioactive surfaces than other ion-incorporated nanomaterials due to their metal-catechol network (MCN) surface engineering. Nanostructural, surface chemistries, cytocompatibility, and matrix mineralization characteristics of Fe-HAp and Fe-HAp/MCN nanorods have been comparatively studied. The results support that MCN-coated nanorod surfaces improved HAp cytocompatibility, bioactivity, and phase compatibility between organic/inorganic nanomaterials, which could be crucial for bone reconstruction.","PeriodicalId":336049,"journal":{"name":"The 3rd International Online-Conference on Nanomaterials","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126704288","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

Toxic Effects of Nickel Nanoparticles in a Subacute Oral Administration to Rats 大鼠亚急性口服镍纳米颗粒的毒性作用

The 3rd International Online-Conference on Nanomaterials Pub Date : 2022-04-22 DOI: 10.3390/materproc2022009021

I. Gmoshinski, V. Shipelin, N. Riger, A. Balakina, N. V. Trusov, G. Guseva, S. Khotimchenko

引用次数: 0

Impurity Ferromagnetism of Pd-Fe and Pd-Co Alloys: Ab Initio vs. Experiment Pd-Fe和Pd-Co合金的杂质铁磁性:从头算与实验

The 3rd International Online-Conference on Nanomaterials Pub Date : 2022-04-22 DOI: 10.3390/materproc2022009022

A. Korableva, I. Piyanzina, A. Gumarov, I. Yanilkin, R. Khaibullin

引用次数: 0