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Special Issue "Nanomaterials in Sample Preparation"

A special issue of Molecules (ISSN 1420-3049).

Deadline for manuscript submissions: 30 June 2021.

Special Issue Editors

Prof. Dr. Javier Hernández-Borges
E-Mail Website
Guest Editor
Departamento de Química, Unidad Departamental de Química Analítica, Facultad de Ciencias, Universidad de La Laguna (ULL). Avda. Astrofísico Francisco Sánchez, s/n°. 38206 San Cristóbal de La Laguna, Spain
Interests: nanomaterials; chromatography; electrophoresis; mass spectrometry; analytical methods development and validation; solvent and sorbent-based microextraction procedures; sample preparation; endocrine disruptors; contaminants, food and environmental analysis
Dr. Javier González-Sálamo
E-Mail Website
Co-Guest Editor
Departamento de Química, Unidad Departamental de Química Analítica, Facultad de Ciencias, Universidad de La Laguna (ULL), Avda. Astrofísico Francisco Sánchez, s/n°, 38206 San Cristóbal de La Laguna, Tenerife, Spain
Interests: nanomaterials; chromatography; mass spectrometry; analytical methods development and validation; solvent and sorbent-based microextraction procedures; sample preparation; endocrine disruptors; contaminants, food and environmental analysis

Special Issue Information

Dear Colleagues,

Nanoscience and nanotechnology, which produce materials for their applications well below the submicroscopic level (<100 nm), have reached an extraordinary level of development. At the nm level, surface physics and chemistry start to dominate the material’s properties. If such a fact is properly considered and managed, it can be of high utility in different disciplines.

In the case of Analytical Chemistry, nanomaterials occupy an important place in current research, especially in sample preparation procedures. Proof of this is the extremely high number of publications that appear each year that broaden more and more the applications and utilities of these materials with unique properties.

This Special Issue intends to compile recent and novel application of nanomaterials (metal–organic frameworks, covalent–organic frameworks, magnetic or nonmagnetic coated and noncoated nanoparticles, carbon-based nanomaterials such as carbon nanotubes, nanohorns, graphene, fullerenes, and others, etc.) in sample preparation procedures. Applications of nanomaterials in solid-phase extraction (SPE), including its dispersive (dSPE) or conventional mode as well as its miniaturized (µSPE, pipette tip SPE, etc.) or magnetic versions (m-dSPE, m-µdSPE, etc.), in solid-phase microextraction (SPME), matrix solid-phase dispersion (MSPD), stir bar (SBSE) or stir cake (SCSE) sorptive extraction, among others, and their combinations with liquid-phase extraction procedures, are highly welcome as well as review articles.

I hope you will find this Special Issue of interest. Your contribution will absolutely promote its success.

Sincerely yours,

Prof. Dr. Javier Hernández-Borges
Dr. Javier González-Sálamo
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All papers will be peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Molecules is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2000 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • Carbon-based nanomaterials
  • Quantum dots
  • Metal–organic frameworks
  • Covalent–organic frameworks
  • Coated and noncoated nanoparticles
  • Sorbent-based extraction techniques
  • Miniaturized extraction procedures

Published Papers (2 papers)

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Research

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Open AccessArticle
Surface Polymers on Multiwalled Carbon Nanotubes for Selective Extraction and Electrochemical Determination of Rhodamine B in Food Samples
Molecules 2021, 26(9), 2670; https://doi.org/10.3390/molecules26092670 - 02 May 2021
Viewed by 288
Abstract
In this study, we combine magnetic solid phase extraction (MSPE), with the screen-printed carbon electrode (SPCE) modified by a molecular imprinted polymer (MIP) for sensitive and selective extraction and electrochemical determination of Rhodamine B in food samples. A magnetic solid phase extraction (MSPE) [...] Read more.
In this study, we combine magnetic solid phase extraction (MSPE), with the screen-printed carbon electrode (SPCE) modified by a molecular imprinted polymer (MIP) for sensitive and selective extraction and electrochemical determination of Rhodamine B in food samples. A magnetic solid phase extraction (MSPE) was carried out using magnetic poly(styrene-co-divinylbenzene) (PS-DVB) and magnetic nanoparticles (MNPs) synthetized on the surface of multiwalled carbon nanotubes (MWCNTs). An MIP was prepared on the surface of MWCNTs in the presence of titanium oxide nanoparticles (TiO2NPs) modifying the SPCE for the rapid electrochemical detection of Rhodamine B. The MIPs synthesis was optimized by varying the activated titanium oxide (TiO2) and multiwalled carbon nanotubes (MWCNTs) amounts. The MSPE and electrochemical detection conditions were optimized as well. The present method exhibited good selectivity, high sensitivity, and good reproducibility towards the determination of Rhodamine B, making it a suitable method for the determination of Rhodamine B in food samples. Full article
(This article belongs to the Special Issue Nanomaterials in Sample Preparation)
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Review

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Open AccessReview
Covalent Organic Frameworks in Sample Preparation
Molecules 2020, 25(14), 3288; https://doi.org/10.3390/molecules25143288 - 20 Jul 2020
Cited by 5 | Viewed by 1214
Abstract
Covalent organic frameworks (COFs) can be classified as emerging porous crystalline polymers with extremely high porosity and surface area size, and good thermal stability. These properties have awakened the interests of many areas, opening new horizons of research and applications. In the Analytical [...] Read more.
Covalent organic frameworks (COFs) can be classified as emerging porous crystalline polymers with extremely high porosity and surface area size, and good thermal stability. These properties have awakened the interests of many areas, opening new horizons of research and applications. In the Analytical Chemistry field, COFs have found an important application in sample preparation approaches since their inherent properties clearly match, in a good number of cases, with the ideal characteristics of any extraction or clean-up sorbent. The review article is meant to provide a detailed overview of the different COFs that have been used up to now for sample preparation (i.e., solid-phase extraction in its most relevant operational modes—conventional, dispersive, magnetic/solid-phase microextraction and stir-bar sorptive extraction); the extraction devices/formats in which they have been applied; and their performances and suitability for this task. Full article
(This article belongs to the Special Issue Nanomaterials in Sample Preparation)
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