Nanomaterials in Green Analytical Chemistry

Topic Information

Dear Colleagues,

Sample preparation and pretreatment procedures increasingly demand the use of powerful and, if possible, universal materials for extraction, microextraction, purification, fractionation, and other separation procedures. In biological, food, environmental, and many other types of samples, the sample preparation step, in addition to being crucial for the overall performance of the analysis, also remains critical because of the production of several wastes. Therefore, the employment of environmentally friendly and low-quantity materials has become popular in numerous analytical methods aiming to target analytes, including metals, biomolecules, metabolites, and organic pollutants. Nanomaterials can further the development of green analytical chemistry in this sense. For this Special Issue, we invite the submission of original research articles or reviews reporting on current advances in analytical method development and applications of nanomaterials of all types, including graphene, carbon nanotubes, ceramic, metallic materials, metal–organic frameworks, magnetic nanostructures, and other nanocomposites, in sample preparation and in all kinds of separation techniques.

Prof. Dr. George Zachariadis
Dr. Rosa Peñalver
Dr. Natalia Manousi
Topic Editors

Keywords

Participating Journals

Journal Name	Impact Factor	CiteScore	Launched Year	First Decision (median)	APC
Analytica analytica	-	-	2020	15.6 Days	CHF 1000	Submit
Molecules molecules	4.6	6.7	1996	14.6 Days	CHF 2700	Submit
Nanomaterials nanomaterials	5.3	7.4	2010	13.6 Days	CHF 2900	Submit
Polymers polymers	5.0	6.6	2009	13.7 Days	CHF 2700	Submit
Separations separations	2.6	2.5	2014	13.6 Days	CHF 2600	Submit

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Published Papers (2 papers)

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All Analytica Molecules Nanomaterials Polymers Separations

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22 pages, 4819 KiB  

Open AccessArticle

Plant-Mediated Synthesis of Magnetite Nanoparticles with Matricaria chamomilla Aqueous Extract

by Andrea Paut, Lucija Guć, Martina Vrankić, Doris Crnčević, Pavla Šenjug, Damir Pajić, Renata Odžak, Matilda Šprung, Kristian Nakić, Marijan Marciuš, Ante Prkić and Ivana Mitar

Nanomaterials 2024, 14(8), 729; https://doi.org/10.3390/nano14080729 - 22 Apr 2024

Viewed by 498

Abstract

Magnetite nanoparticles (NPs) possess properties that make them suitable for a wide range of applications. In recent years, interest in the synthesis of magnetite NPs and their surface functionalization has increased significantly, especially regarding their application in biomedicine such as for controlled and [...] Read more.

Magnetite nanoparticles (NPs) possess properties that make them suitable for a wide range of applications. In recent years, interest in the synthesis of magnetite NPs and their surface functionalization has increased significantly, especially regarding their application in biomedicine such as for controlled and targeted drug delivery. There are several conventional methods for preparing magnetite NPs, all of which mostly utilize Fe(iii) and Fe(ii) salt precursors. In this study, we present a microwave hydrothermal synthesis for the precipitation of magnetite NPs at temperatures of 200 °C for 20 min and 260 °C for 5 min, with only iron(iii) as a precursor utilizing chamomile flower extract as a stabilizing, capping, and reducing agent. Products were characterized using FTIR, PXRD, SEM, and magnetometry. Our analysis revealed significant differences in the properties of magnetite NPs prepared with this approach, and the conventional two-precursor hydrothermal microwave method (sample MagH). FTIR and PXRD analyses confirmed coated magnetite particles. The temperature and magnetic-field dependence of magnetization indicate their superparamagnetic behavior. Importantly, the results of our study show the noticeable cytotoxicity of coated magnetite NPs—toxic to carcinoma cells but harmless to healthy cells—further emphasizing the potential of these NPs for biomedical applications. Full article

(This article belongs to the Topic Nanomaterials in Green Analytical Chemistry)

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13 pages, 4187 KiB  

Open AccessArticle

A Pyridine Diketopyrrolopyrrole-Grafted Graphene Oxide Nanocomposite for the Sensitive Detection of Chloramphenicol by a Direct Electrochemical Method

by Lingpu Jia, Juan Hao, Long Yang, Jun Wang, Lijuan Huang and Kunping Liu

Nanomaterials 2023, 13(3), 392; https://doi.org/10.3390/nano13030392 - 18 Jan 2023

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Abstract

A novel direct electrochemical sensor, based on a pyridine diketopyrrolopyrrole/graphene oxide nanocomposite-modified glass carbon electrode (PDPP/GO/GCE), was developed herein for chloramphenicol (CAP) detection. In this research, PDPP was grafted onto GO by C-N bonds and π-π conjugation, which were synergistically confirmed by Fourier [...] Read more.

A novel direct electrochemical sensor, based on a pyridine diketopyrrolopyrrole/graphene oxide nanocomposite-modified glass carbon electrode (PDPP/GO/GCE), was developed herein for chloramphenicol (CAP) detection. In this research, PDPP was grafted onto GO by C-N bonds and π-π conjugation, which were synergistically confirmed by Fourier transform infrared spectroscopy and X-ray photoelectron spectroscopy. The morphology study shows that PDPP was uniformly dispersed on the GO in the form of particles. The constructed PDPP/GO/GCE showed the strongest response signal to CAP in the evaluation of electrocatalytic activity by cyclic voltammetry compared to that of GO-modified and unmodified GCE, revealing that the introduction of PDPP can effectively improve the electrocatalytic activity of sensors. Moreover, PDPP/GO/GCE had a noticeable current signal when the concentration of CAP was as low as 0.001 uM and had a wide line range (0.01–780 uM) with a low limit of detection (1.64 nM). The sensor properties of the as-obtained PDPP/GO/GCE involved anti-interference, reproducibility, and stability, which were also evaluated and revealed satisfactory results. Full article

(This article belongs to the Topic Nanomaterials in Green Analytical Chemistry)

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