Showing papers in "Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy in 2022"

TL;DR: In this article, the aromatic π-electron mixed ligands strategy was introduced to achieve the ultrastable LMOFs with predominant luminescent sensing performances, and the ternary LMOF of {[Zn2(HDDB)(bib)1.5]·3H2O}n (1), was fabricated based on 3,5-di(2′,4′-dicarboxylphenyl)benozoic acid (H5DDB) and the N-donor of meta-bis(im

TL;DR: Raman spectroscopy combined with machine learning techniques provides a rapid method for breast cancer analysis able to reveal differences in intracellular compositions and molecular structures among subtypes.

TL;DR: In this article , the aromatic π-electron mixed ligands strategy was introduced to achieve the ultrastable LMOFs with predominant luminescent sensing performances, and the ternary LMOF of {[Zn2(HDDB)(bib)1.5]·3H2O}n (1), was fabricated based on 3,5-di(2,4'-dicarboxylphenyl)benozoic acid (H5DDB) and the N-donor of meta-bis(imidazol-1-yl)-benzene (bib), under mixed solvothermal condition.

TL;DR: In this paper , the authors used Raman spectroscopy and machine learning techniques to simplify and accelerate the process used to distinguish normal from breast cancer cells and classify breast cancer subtypes.

TL;DR: A simple and highly selective fluorescence biosensor has been exploited for p-nitrophenol (p-NP) and alkaline phosphatase (ALP) activity detection based on the glutathione-stabilized copper nanoclusters (GSH-CuNCs) mediated-inner filter effect (IFE) as mentioned in this paper .

TL;DR: In this paper , a salamo-salen-salamo hybrid fluorescent chemical sensor (H4L) was synthesized and characterized, which exhibits high selectivity and sensitivity to Zn2+ in physiological pH range.

TL;DR: In this paper , poly (citric acid) (PCA) functionalized on nano Ag/Cu was synthesized by chemical analysis method and the nano probe was applied to detection of cysteine by using the magnesium (II) ions as a cross linker.

TL;DR: In this article , quinoline based fluorescent sensors 4 and 5 were rationally synthesized that exhibited excellent aggregation induced emission (AIE) in an aqueous medium, which is attributed to the involvement of intermolecular charge transfer (ICT).

TL;DR: In this article, reduced porous graphene oxide (rPGO) decorated with gold nanoparticles (Au NPs) was used to modify the ITO electrode for detecting COVID-19 protein.

TL;DR: In this paper , a variable selection method based on MI combined with variance inflation factor (MI-VIF) was proposed in the field of feature selection, where the relevance between the candidate variable and the response is maximized and the redundancy of the selected variables is minimized.

TL;DR: In this article , a portable near-infrared spectroscopy (NIRS) combined with multivariate analysis for real-time assessment of moisture content in apple slices during direct-contact ultrasonic drying is presented.

TL;DR: In this paper , reduced porous graphene oxide (rPGO) decorated with gold nanoparticles (Au NPs) was used to modify the ITO electrode for detecting COVID-19 protein.

TL;DR: In this article , the interaction of DAPA with bovine serum albumin (BSA) was investigated for the first time using various fluorescence spectroscopic techniques, UV-absorption spectroscopy, molecular docking, and molecular dynamic (MD) simulation.

TL;DR: In this paper, the interaction of DAPA with bovine serum albumin (BSA) was investigated for the first time using various fluorescence spectroscopic techniques, UV-absorption spectroscopy, molecular docking, and molecular dynamic (MD) simulation.

TL;DR: In this paper , two new fluorescein based sensors F2 and F3 were used for the detection of 2,4,6-trinitrophenol (TNP) in real samples.

TL;DR: In this paper, a pyridine-based receptor (S) has been reported for the selective detection of copper ion over other metal ions, which reveals a drastic color conversion from vapid to yellow and cyan under normal light and UV light with copper ion.

TL;DR: In this article, the authors reported in situ nonlinear microscopic images on plasmon-enhanced coherent anti-Stokes Raman scattering (CARS) and PLASmon-Induced two-photon excited fluorescence (TPEF) of non-fluorescent microorganism.

TL;DR: Wang et al. as discussed by the authors used principal component analysis (PCA) to extract the features of the infrared spectra, first-derivative IR, Raman spectra and their first-derived IR spectra for renal cell carcinoma diagnosis.

TL;DR: Wang et al. as mentioned in this paper designed three resorufin-based incorporating isatin derivatives probes RF-ITs, and successfully obtained two highly selective probes RFIT-OC and RF-it-EG for ONOO- detection.

TL;DR: In this article , a quantitative prediction model of the changes in moisture content during the processing of green tea was constructed based on machine vision and near-infrared spectroscopy technology.

TL;DR: A novel oxene based unusual sensory receptor (HyMa) has been synthesized via Knoevenagel condensation triggered carbon-heteroatom (oxygen) intramolecular bond formation reaction at room temperature for discriminative detection of multi-analytes like HSO4-, CN- & F- by spectro-photometric alterations with profound selectivity with the detection limit of 38 ppb, 18 ppb and 94 ppb respectively as discussed by the authors .

TL;DR: In this paper , a new series of all-small-molecule acceptors (ASMAs) has been designed by end-capped alteration of recently synthesized ZR-Si4 molecule (PCE = 10.10%).

TL;DR: In this paper , a pyridine-based receptor (S) has been reported for the selective detection of copper ion over other metal ions, which reveals a drastic color conversion from vapid to yellow and cyan under normal light and UV light with copper ion.

TL;DR: In this article , a new eco-friendly, rapid, and sensitive spectrophotometric method was developed to determine small quantities of nitrite, based on a diazotization mechanism.

TL;DR: In this article , a new series of all-small-molecule acceptors (ASMAs) has been designed by end-capped alteration of recently synthesized ZR-Si4 molecule (PCE = 10.10%).

TL;DR: The incorporation of deuterium from heavy water into cellular biomolecules resulted in the formation of carbon-deuterium (CD) peaks in the Raman spectra, indicating the cell metabolic activity as mentioned in this paper .

TL;DR: In this paper , Raman spectroscopy combined with convolutional neural network (CNN) and chemometrics was used to achieve the identification and quantification of honey samples adulterated with high fructose corn syrup, rice syrup, maltose syrup and blended syrup, respectively.

TL;DR: In this article, flexible surface-enhanced Raman scattering (SERS) substrates composed of gold nanoparticles and two-dimensional MXene Ti3C2TX nanosheets have been designed.

TL;DR: In this paper, a feasibility analysis of fluorescence hyperspectral imaging technology was studied for the detection of lead content in lettuce leaves, and Monte Carlo optimized wavelet transform stacked auto-encoders (WT-MC-SAE) was proposed for dimensionality reduction and depth feature extraction.

TL;DR: In this article , a fluorescent sensor based on S, N-doped carbon quantum dots (S, CQDs) was established for rapid detection of tetracycline antibiotics (TCs).