Distinguishing cotton seed genotypes by means of vibrational spectroscopic methods (NIR and Raman) and chemometrics

SARS-CoV-2 proteins monitored by long-range surface plasmon field-enhanced Raman scattering with hybrid bowtie nanoaperture arrays and nanocavities

“…With the help of PCA methods, we proved that our label-free SERS method based on the LR-SERS substrate can distinguish S and N proteins, enabling specificity; here the detailed assignment of the above Raman peaks in saliva is listed in Table S3 † 55–57 . The ROC 58 curves of 20 positive and 20 negative SERS spectra are presented in Fig. 6D.…”

A review on the identification of transgenic oilseeds and oils

“…Some researchers claimed that novel traits in transgenic plants were highly correlated with potentially harmful effects on nontarget biodiversity (Bohn, 2018). As reported, transgenic maize plants with a high total expression of Cry-toxins are likely to expand the range of sensitive nontarget organisms, which may cause a variety of nontarget creatures to experience more negative impacts, potentially hurting biodiversity (Bohn et al, 2016;da Mata et al, 2022;Venter & Bohn, 2016). This effect may happen to consumers through chemical residues in the food chain (Bohn, 2018).…”

“…Further rapid and efficient detection methods involving chromatography and spectroscopy in transgenic oilseeds/oils were reviewed as above. Among these methods, we believe that vibrational spectroscopy, such as NIRS and Raman spectroscopy, is one of the most promising transgenic detecting technologies, because it is nondestructive, quick, and almost inexpensive for a great number of samples (da Mata et al., 2022; Luna et al., 2013; Pasquini, 2018). Moreover, the molecular connections linked to alterations brought about by the genotypic modifications made can be identified by NIRS.…”

Raman spectroscopic assessment of fibers and seeds of six cotton genotypes

“…The authors also demonstrated that the RS approach was as accurate as near‐infrared analysis. Currently, there are only limited reports on RS characterization of fiber and cottonseed research (Cabrales et al., 2014; da Mata et al., 2022) even though various IR techniques have been applied into a wide array of cotton biomass characterization (He & Liu, 2021; He, Liu et al., 2022; Liu et al., 2016).…”

“…While the score plot shows whether the samples are different, the corresponding loading plot shows the difference in the spectra and different polymorphs of the samples. Typically, two or three PCs could explain the most influential variables of the spectral variations (da Mata et al., 2022; Liu et al., 2015; Pećinar et al., 2021; Radulescu et al., 2021).…”