Efficient trap of polar aromatic amines in environmental waters by electroenhanced solid phase microextraction based on porous monolith doped with carboxylic carbon nanotubes

Wu, Jiangyi; Huang, Youfang; Huang, Xiaojia

doi:10.1016/j.seppur.2021.120067

Cited by 21 publications

(7 citation statements)

References 35 publications

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“…Indeed, water solubility of amines is largely due to their capability for hydrogen bonding. [56] Further, we observed a sp 3 -CH stretching peak of CH 2 and CH 3 groups in PHB at 2977.86 cm −1 (Figure S2A, Supporting Information) [57] and an aromatic -NH stretch of secondary amine peak in melanin at 3213.16 cm −1 (Figure S2B, Supporting Information). [58] A carboxylic -C = O stretching peak was observed in PHB and melanin at 1726.15 and 1716.51 cm −1 respectively.…”

Section: Chemical Analysis and Tracing Of Fibers Elemental Compositionmentioning

confidence: 92%

Biodegradable and Electrically Conductive Melanin‐Poly (3‐Hydroxybutyrate) 3D Fibrous Scaffolds for Neural Tissue Engineering Applications

Agrawal

Vimal

Barzaghi

et al. 2022

Macromolecular Bioscience

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Due to the severity of peripheral nerve injuries (PNI) and spinal cord injuries (SCI), treatment options for patients are limited. In this context, biomaterials designed to promote regeneration and reinstate the lost function are being explored. Such biomaterials should be able to mimic the biological, chemical, and physical cues of the extracellular matrix for maximum effectiveness as therapeutic agents. Development of biomaterials with desirable physical, chemical, and electrical properties, however, has proven challenging. Here a novel biomaterial formulation achieved by blending the pigment melanin and the natural polymer Poly-3-hydroxybutyrate (PHB) is proposed. Physio-chemical measurements of electrospun fibers reveal a feature rich surface nano-topography, a semiconducting-nature, and brain-tissue-like poroviscoelastic properties. Resulting fibers improve cell adhesion and growth of mouse sensory and motor neurons, without any observable toxicity. Further, the presence of polar functional groups positively affect the kinetics of fibers degradation at a pH (≈7.4) comparable to that of body fluids. Thus, melanin-PHB blended scaffolds are found to be physio-chemically, electrically, and biologically compatible with neural tissues and could be used as a regenerative modality for neural tissue injuries. A biomaterial for scaffolds intended to promote regeneration of nerve tissue after injury is developed. This biomaterial, obtained by mixing the pigment melanin and the natural polymer PHB, is biodegradable, electrically conductive, and beneficial to the growth of motor and sensory neurons. Thus, it is believed that this biomaterial can be used in the context of healthcare applications.

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Section: Chemical Analysis and Tracing Of Fibers Elemental Compositionmentioning

confidence: 92%

Biodegradable and Electrically Conductive Melanin‐Poly (3‐Hydroxybutyrate) 3D Fibrous Scaffolds for Neural Tissue Engineering Applications

Agrawal

Vimal

Barzaghi

et al. 2022

Macromolecular Bioscience

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“…The first report of AAs in surface waters came in the 1970s with the detection of 3,4-dichloroaniline and 2-chloroaniline in the Rhine River . Bioanalytical findings have indicated the contribution of AAs to the mutagenic effects observed in surface water samples across the globe, including North America, Europe, ,,− Brazil, and Japan. , Despite these findings, chemical/quantification data on AAs in surface waters are limited: primary AAs have been quantified in Turkish river and seawater; Italian, German, and Iranian rivers; and Chinese surface waters. ,,, However, most of these studies are limited to method validation, and extensive screenings have not been done. There is growing literature covering tire rubber-associated AAs in surface waters , given the particular concern about their aquatic toxicity, and increases in surface water concentrations of tire rubber-associated AAs are documented during rain events, which suggests a clear pathway from surface runoff to surface waters …”

Section: Environmental Presence and Fatementioning

confidence: 99%

Tracking Aromatic Amines from Sources to Surface Waters

Edebali,

Krupčíková,

Goellner

et al. 2024

Environ. Sci. Technol. Lett.

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This review examines the environmental occurrence and fate of aromatic amines (AAs), a group of environmental contaminants with possible carcinogenic and mutagenic effects. AAs are known to be partially responsible for the genotoxic traits of industrial wastewater (WW), and AA antioxidants are acutely toxic to some aquatic organisms. Still, there are gaps in the available data on sources, occurrence, transport, and fate in domestic WW and indoor environments, which complicate the prevention of adverse effects in aquatic ecosystems. We review key domestic sources of these compounds, including cigarette smoke and grilled protein-rich foods, and their presence indoors and in aquatic matrices. This provides a basis to evaluate the importance of nonindustrial sources to the overall environmental burden of AAs. Appropriate sampling techniques for AAs are described, including copper-phthalocyanine trisulfonate materials, XAD resins in solid-phase extraction, and solid-phase microextraction methods, which can offer insights into AA sources, transport, and fate. Further discussion is provided on potential progress in the research of AAs and their behavior in an aim to support the development of a more comprehensive understanding of their effects and potential environmental risks.

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“…With the aid of an electric or magnetic field, better extraction performance can be achieved. Electric field-enhanced SPME has been used for the fast extraction and desorption of polar aromatic amines (AAs) and phenoxycarboxylic acids herbicides (PCAHs), and their precise quantifications at trace level have been realized. , On the other hand, magnetic nanoparticles (Fe 3 O 4 ) have been composited with other polymers and further in situ polymerized in a capillary for IT-SPME. The fabricated monolithic adsorbents present porous and super paramagnetic properties and possess abundant functional groups, which have exhibited satisfactory performance for the capture of inorganic species (mercury, chromium, and selenium).…”

Section: Spme In Environmental Analysismentioning

confidence: 99%