SERS determination and multivariate classification of antibiotics in chicken meat using gold nanoparticle–decorated electrospun PVA nanofibers

AuNP decorated aegle marmelos leaf as SERS substrate for trace detection of antibiotics and machine learning based classification

“…Though these SERS substrates are sensitive and highly reproducible, they suffer from a high fabrication costs thus, restricting their use to research applications only. Some of the low-cost SERS platforms, like printing grade paper [13][14][15], filter paper [16], Blu-ray DVD [17,18], electrospun nanofibers [19,20], and polymer films [21] offer a reasonably high sensitivity and reproducibility characteristics, and have emerged as alternative platforms to their commercially counterparts. Different plasmonic nanostructures of noble metals like multi-spiked star-shaped silver structures [22], silver nano dendrites [23], T-shaped dimers [24] have also been explored for the development of various low-cost SERS substrates that were used to detect chemical and bio-chemical analytes in complex matrices.…”

Electrospun Nanofibers Modified with Copper Nanoparticles for Simultaneous Extraction and Detection of Three Ochratoxins in Foods

“…32,33 Notably, Au and Ag nanoclusters have been widely studied in the field of OTs analysis, while copper (Cu) nanoclusters with similar properties have hardly been explored. 34,35 Therefore, introducing copper nanoparticles into electrospinning nanofibers for OTs adsorption is a method worth trying. The specific surface area of the adsorbent can be significantly increased by the introduction of copper particles, further improving the adsorption capacity of the nanofiber membrane.…”

“…Compared with other solid-phase adsorbents such as nanoparticles and nanotubes, which may create a adsorbents leaking or aggregation of nanoparticles in the SPE column during the extraction process, the mats and cotton like bundles of nanofibers have better chemical and mechanical stability, and it is easier filled into the column. , The three-dimensional network structure of nanofiber membrane facilitates the transfer and diffusion of particles within membrane, which efficiently reduces the capture time . Furthermore, combining electrospun nanofibers with other nanomaterials or introducing functional groups on nanofibers through chemical modification can not only introduce more active sites into the nanofiber adsorbents, further enhancing the adsorption capacity and selectivity of nanofiber membranes, but also avoid the problem of segregating samples from nanoscale adsorbents after magnetic adsorbents extraction. , Notably, Au and Ag nanoclusters have been widely studied in the field of OTs analysis, while copper (Cu) nanoclusters with similar properties have hardly been explored. , Therefore, introducing copper nanoparticles into electrospinning nanofibers for OTs adsorption is a method worth trying. The specific surface area of the adsorbent can be significantly increased by the introduction of copper particles, further improving the adsorption capacity of the nanofiber membrane .…”