A polypyrrole-chitosan cryogel stir-bead micro-solid phase extractor for the determination of phthalate esters in contact lenses storage solutions and in artificial saliva in contact with baby teethers

Makkliang, Fonthip; Kanatharana, Proespichaya; Thavarungkul, Panote; Thammakhet‐Buranachai, Chongdee

doi:10.1016/j.aca.2017.06.050

Cited by 38 publications

(14 citation statements)

References 53 publications

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“…The functionalization of the MNPs with silica by the sol-gel method prior to the incorporation of chitosan has also been reported to improve the stability of the resulting composite [74,85]. Among other strategies that have been reported to prepare chitosan-based magnetic sorbents, it is interesting to mention the fabrication of stir beads composed of chitosan and polypyrrole in absence of any magnetic material [89]. In this case, the composite was prepared by crosslinking the chitosan with glutaraldehyde in presence of polypyrrole, while using a template to obtain the spherical shape.…”

Section: Chitosan In Sorbent-based Microextraction Methodsmentioning

confidence: 99%

“…In most applications, magnetic chitosan sorbents were combined with other materials to prepare hybrid composites, such as GO [75,77,79e81,83,86,91] MIPs [60,63,69,70,78,80,81,88,92]; other polymers including polyaniline [59,66,68], polypyrrole [57,61,89], and polythiophene [62,64]; and even ILs [77], deep eutectic solvents [69,82], surfactants [71], and antibodies [84]. When dealing with magnetic GO/chitosan sorbents, the GO is added to the reaction solution during the crosslinking of chitosan in presence of the MNPs.…”

Section: Chitosan In Sorbent-based Microextraction Methodsmentioning

confidence: 99%

“…The vast majority of the developed methods have been used for the extraction of organic compounds, covering from drugs and antibiotics [38,39,45,46,57,60,61,70,80,87,92,94], pesticides [42,43,62,64,71,72], other persistent and emerging endocrine disruptor contaminants, to natural bioactive compounds [41,53,55,56,69,86,90], and pigments [47,51]. Among the endocrine disruptor contaminants, polycyclic aromatic hydrocarbons (PAHs) [78,97], polychlorinated and polybrominated biphenyls (PCBs and PBBs) [49,58,93], phthalate acid esters (PAEs) [52,66,89], parabens [40,54], phenols [59,99], and other food contaminants [80,88], can be cited. All of the above-mentioned organic compounds have been determined in water samples coming from different sources [40,42,48,49,…”

Section: Analytical Applications With Chitosan-based Materials In Sorbent-based Microextractionmentioning

confidence: 99%

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Biopolymers in sorbent-based microextraction methods

Pacheco‐Fernández

Allgaier-Díaz

Mastellone

et al. 2020

TrAC Trends in Analytical Chemistry

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Since the introduction of the Green Analytical Chemistry guidelines, there has been an increasing concern on the sustainability of sample preparation approaches, particularly if considering they constitute the most time-consuming step of the analytical method and the main source of laboratory wastes. Among the alternatives explored, it is important to highlight the miniaturization of the extraction methods, which has been accompanied by the seek of greener solvents and sorbents. Biopolymers emerge as potential candidates to be used as sorbents in microextraction schemes given their biodegradability, versatility, and easily functionalization. This review offers an overview on biopolymers (chitosan, cellulose, alginate, and agarose) in sorbent-based microextraction approaches, paying attention to the preparation of the sorbent and the format in which biopolymers are incorporated into the sorbent/device, thus implying a specific microextraction approach, their role in the resulting sorbent material, and the reported analytical applications, covering environmental, food, and bioclinical analysis.

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Section: Chitosan In Sorbent-based Microextraction Methodsmentioning

confidence: 99%

Section: Chitosan In Sorbent-based Microextraction Methodsmentioning

confidence: 99%

Section: Analytical Applications With Chitosan-based Materials In Sorbent-based Microextractionmentioning

confidence: 99%

See 1 more Smart Citation

Biopolymers in sorbent-based microextraction methods

Pacheco‐Fernández

Allgaier-Díaz

Mastellone

et al. 2020

TrAC Trends in Analytical Chemistry

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“…Several studies have demonstrated those molecules and ions are serious threats to human health and the environment [48,49,50]. Sensitive detections for these toxic substances have been achieved by using gas chromatography-mass spectrometry (GC/MS), inductively coupled plasma mass spectrometer, and high performance liquid chromatography (HPLC) with UV and diode array detectors [51,52,53,54,55]. However, the expensive and bulky instruments, complex sample operational procedures and professionally trained operators greatly limit the widespread using of such methods.…”

Section: Aptamer-based Sers Probes In Quantitative Analysis and Bimentioning

confidence: 99%

Development and Application of Aptamer-Based Surface-Enhanced Raman Spectroscopy Sensors in Quantitative Analysis and Biotherapy

Wang

Zhao

et al. 2019

Sensors

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Surface-enhanced Raman scattering (SERS) is one of the most special and important Raman techniques. An apparent Raman signal can be observed when the target molecules are absorbed onto the surface of the SERS substrates, especially on the “hot spots” of the substrates. Early research focused on exploring the highly active SERS substrates and their detection applications in label-free SERS technology. However, it is a great challenge to use these label-free SERS sensors for detecting hydrophobic or non-polar molecules, especially in complex systems or at low concentrations. Therefore, antibodies, aptamers, and antimicrobial peptides have been used to effectively improve the target selectivity and meet the analysis requirements. Among these selective elements, aptamers are easy to use for synthesis and modifications, and their stability, affinity and specificity are extremely good; they have been successfully used in a variety of testing areas. The combination of SERS detection technology and aptamer recognition ability not only improved the selection accuracy of target molecules, but also improved the sensitivity of the analysis. Variations of aptamer-based SERS sensors have been developed and have achieved satisfactory results in the analysis of small molecules, pathogenic microorganism, mycotoxins, tumor marker and other functional molecules, as well as in successful photothermal therapy of tumors. Herein, we present the latest advances of the aptamer-based SERS sensors, as well as the assembling sensing platforms and the strategies for signal amplification. Furthermore, the existing problems and potential trends of the aptamer-based SERS sensors are discussed.

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“…16 Sensitive detection of DEHP has been achieved by using gas chromatography-mass spectrometry (GC-MS), 9,17,18 gas chromatography with a ame ionization detector (GC-FID), 7,19,20 gas chromatography tandem mass spectrometry (GC-MS/MS), 21 high performance liquid chromatography with a UV detector (HPLC-UV), 22 and high performance liquid chromatography coupled with diode array detectors (HPLC-DAD). 23 Although these methods are able to sensitively detect DEHP, they require special extraction techniques, complex sample pretreatments, professionally trained operators, bulky instruments, and a stable laboratory environment. To solve the mentioned drawbacks, other methods have been proposed for DEHP detection.…”

Section: Introductionmentioning

confidence: 99%