Magnetic Solid Phase Extraction as a Promising Technique for Fast Separation of Metallic Nanoparticles and Their Ionic Species: A Review of Recent Advances

Hagarová, Ingrid

doi:10.1155/2020/8847565

Cited by 35 publications

(10 citation statements)

References 77 publications

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“…Therefore, a new method has been developed. Magnetic solid-phase extraction (MSPE) offers several advantages over conventional SPE, including convenient separation of magnetizable sorbent through the application of an external magnetic field [ 69 ].…”

Section: Sorbent Extraction Proceduresmentioning

confidence: 99%

Preconcentration and Separation of Gold Nanoparticles from Environmental Waters Using Extraction Techniques Followed by Spectrometric Quantification

Hagarová

Nemček

Šebesta

et al. 2022

IJMS

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The quantification of gold nanoparticles (AuNP) in environmental samples at ultratrace concentrations can be accurately performed by sophisticated and pricey analytical methods. This paper aims to challenge the analytical potential and advantages of cheaper and equally reliable alternatives that couple the well-established extraction procedures with common spectrometric methods. We discuss several combinations of techniques that are suitable for separation/preconcentration and quantification of AuNP in complex and challenging aqueous matrices, such as tap, river, lake, brook, mineral, and sea waters, as well as wastewaters. Cloud point extraction (CPE) has been successfully combined with electrothermal atomic absorption spectrometry (ETAAS), inductively coupled plasma mass spectrometry (ICP-MS), chemiluminescence (CL), and total reflection X-ray fluorescence spectrometry (TXRF). The major advantage of this approach is the ability to quantify AuNP of different sizes and coatings in a sample with a volume in the order of milliliters. Small volumes of sample (5 mL), dispersive solvent (50 µL), and extraction agent (70 µL) were reported also for surfactant-assisted dispersive liquid–liquid microextraction (SA-DLLME) coupled with electrothermal vaporization inductively coupled plasma mass spectrometry (ETV-ICP-MS). The limits of detection (LOD) achieved using different combinations of methods as well as enrichment factors (EF) varied greatly, being 0.004–200 ng L−1 and 8–250, respectively.

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Section: Sorbent Extraction Proceduresmentioning

confidence: 99%

Preconcentration and Separation of Gold Nanoparticles from Environmental Waters Using Extraction Techniques Followed by Spectrometric Quantification

Hagarová

Nemček

Šebesta

et al. 2022

IJMS

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“…They are superior to other conventional methods as a result of reduced consumption of chemicals, the easier process by means of automation and lesser time for processing. 50 In this connection, Zhao et al made magnetic NPs coated by carboxyl group-(PC) with poly (amino ester) (pcMNPs) especially during the extraction of RNA. 51 Ultimately this led to the sensitive identification of SARS-CoV-2 in RT-PCR.…”

Section: Real-time Reverse Transcriptase-polymerase Chain Reaction Us...mentioning

confidence: 99%

Therapeutic and Diagnostic Approaches by using Nanotechnology in SARS-CoV-2 Infections

Venkatesan¹,

Leela²,

Ravi³

et al. 2022

J. Pure Appl. Microbiol.

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Severe Acute Respiratory Syndrome Corona Virus-2 infection is a universal threat in recent days, hence early diagnosis and treatment play a pivotal role in controlling the spread thereby preventing them to become endemic. A newer promising approach by Nanotechnology plays an essential role in targeting the specific pathogens for therapeutic and diagnosis of Viral infection. Certain Nano platforms like Microneedle array delivered Virus S1 subunit vaccines, spike protein nanoparticles, Lumazine synthase Nanoparticles, Silver Nanoparticles, Self-Assembling Protein Nanoparticles against Viral therapy are the upcoming applications as a therapeutic approach. Nucleic acid amplification techniques and Surface-enhanced Raman Spectroscopy shows a high specificity with the immunoassay strategy. In recent days, Colloidal Gold – Nanoparticles and silicon nanoparticles have been widely used as a point of care for quick detection of IgG and IgM antibodies obtained from the virus as a diagnostic approach. Additionally, the Nanoparticles serve as a significant improvement in Personal Protective Equipment and protect against exposure to the virus. As a result of repurposing as well as for the development of the drug, apparently, Nanoparticles themselves and their concomitant therapy or their carriers will be advantageous in making a therapeutic and diagnostic approach against Severe Acute Respiratory Syndrome Corona Virus-2 infections.

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“…Metallic nanoparticles containing valuable metals such as silver and gold exhibit unique optical, physical, chemical, and biological properties that are exploited in a wide range of applications (Hagarová, 2020 ). Their strong affinity for inorganic and organic mercury species can be utilized in extraction procedures for mercury binding.…”

Section: Metallic Nanoparticles and Hybrid Nanomaterials Containing Metallic Nanoparticles As Sorbents For Efficient Trace Element Separamentioning

confidence: 99%

Application of Metallic Nanoparticles and Their Hybrids as Innovative Sorbents for Separation and Pre-concentration of Trace Elements by Dispersive Micro-Solid Phase Extraction: A Minireview

Hagarová

Nemček

2021

Front. Chem.

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It is indisputable that separation techniques have found their rightful place in current analytical chemistry, considering the growing complexity of analyzed samples and (ultra)trace concentration levels of many studied analytes. Among separation techniques, extraction is one of the most popular ones due to its efficiency, simplicity, low cost and short processing times. Nonetheless, research interests are directed toward the enhancement of performance of these procedures in terms of selectivity. Dispersive solid phase extraction (DSPE) represents a novel alternative to conventional solid phase extraction (SPE) which not only delivers environment-friendly extraction with less solvent consumption, but also significantly improves analytical figures of merit. A miniaturized modification of DSPE, known as dispersive micro-solid phase extraction (DMSPE), is one of the most recent trends and can be applied for the extraction of wide variety of analytes from various liquid matrices. While DSPE procedures generally use sorbents of different origin and sizes, in DMSPE predominantly nanostructured materials are required. The aim of this paper is to provide an overview of recently published original papers on DMSPE procedures in which metallic nanoparticles and hybrid materials containing metallic particles along with other (often carbon-based) constituent(s) at the nanometer level have been utilized for separation and pre-concentration of (ultra)trace elements in liquid samples. The studies included in this review emphasize the great analytical potential of procedures producing reliable results in the analysis of complex liquid matrices, where the detection of target analyte is often complicated by the presence of interfering substances.

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Magnetic Solid Phase Extraction as a Promising Technique for Fast Separation of Metallic Nanoparticles and Their Ionic Species: A Review of Recent Advances

Cited by 35 publications

References 77 publications

Preconcentration and Separation of Gold Nanoparticles from Environmental Waters Using Extraction Techniques Followed by Spectrometric Quantification

Preconcentration and Separation of Gold Nanoparticles from Environmental Waters Using Extraction Techniques Followed by Spectrometric Quantification

Therapeutic and Diagnostic Approaches by using Nanotechnology in SARS-CoV-2 Infections

Application of Metallic Nanoparticles and Their Hybrids as Innovative Sorbents for Separation and Pre-concentration of Trace Elements by Dispersive Micro-Solid Phase Extraction: A Minireview

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