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http://dx.doi.org/10.1103/physrevb.40.8319 | DOI Listing |
Bioorg Chem
January 2025
Department of Chemistry, St Berchmans College (Autonomous), Changanassery, Kerala 686101, India; Centre for Theoretical and Computational Chemistry, St Berchmans College (Autonomous), Changanassery, Kerala 686101, India. Electronic address:
In this study, three novel derivatives of benzo[b]thiophene-2-carbaldehyde (BTAP1, BTAP2, and BTAP3) were successfully synthesized and comprehensively characterized using spectroscopic techniques including FTIR, UV-VIS, HNMR, and CNMR. Thermal analysis through TGA and DTA demonstrated remarkable thermal stability with a maximum threshold at 270 °C. Spectroscopic investigations revealed π → π* transitions in all compounds, attributed to the conjugated system comprising benzothiophene rings connected to bromophenyl/ aminophenyl/phenol rings via α, β-unsaturated ketone bridges.
View Article and Find Full Text PDFAngew Chem Int Ed Engl
January 2025
Jilin University, State Key Laboratory of Supramolecular Structure and Materials, 2699 Qianjin Street, 130012, Changchun, CHINA.
To date, few systematic approach has been established for predicting catalytic performance by analyzing the spectral information of molecules adsorbed on photocatalyst surfaces. Effective charge transfer (CT) between the semiconductor photocatalysts and surface-absorbed molecules is essential for enhancing catalytic activity and optimizing light energy utilization. This study aimed to validate the surface-enhanced Raman spectroscopy (SERS) based on the CT enhancement mechanism in investigating the CT process during semiconductor photocatalytic C-C coupling model reactions.
View Article and Find Full Text PDFJ Cell Sci
January 2025
Department of Biomedical Engineering, Northwestern University, Evanston, Illinois, 60208, USA.
Disrupted nuclear shape is associated with multiple pathological processes including premature aging disorders, cancer-relevant chromosomal rearrangements, and DNA damage. Nuclear blebs (i.e.
View Article and Find Full Text PDFNat Prod Res
January 2025
Department of Chemistry, Islamic University of Science and Technology, Awantipora, JK, India.
, a high-altitude medicinal herb, possesses diverse therapeutic properties. This study conducted a comprehensive phytochemical analysis of the whole plant, leading to the isolation of 15 secondary metabolites (1-15) across various classes: flavonoids (), triterpenoids (, ), sesquiterpenoid lactones (, ) and furanocoumarins (, ) along with three steroids (). These compounds were characterized using NMR (HNMR,C NMR, 2D NMR), IR, HRMS and UV-VIS.
View Article and Find Full Text PDFPhoto-induced force microscopy (PiFM) uses laser modulation at the atomic force microscope cantilever's typical mechanical resonance frequency, to encode the material near-field response in the probes nanomechanics. While this technique offers the simplicity gained by mechanical detection, it can be challenging for hyperspectral measurements. Modulation in the visible and near-infrared ranges, often involves using acousto-optic modulators that introduce a wavelength-dependent laser steering, detrimental for spectroscopic purposes.
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