The present study details on the mechanism of synthesis of bis (4-formyl-2 methoxy phenyl carbonate), using two green reagents dimethyl carbonate and vanillin for application as therapeutic agent. The synthesized FMPC was identified from the C nuclear magnetic resonance spectra. The novel modified Schiff base nanoparticles resulted from the crosslinking of FMPC with chitosan were confirmed by cross-polarization magic angle spinning carbon-13 nuclear magnetic resonance spectroscopy. The incorporation of the FMPC was identified from the amorphous X-ray diffraction patterns of C-FMPC-Nps. The thermal stability of the formed nanoparticles was predicted using thermogravimetric analysis. The morphology of the nanoparticles as observed from HRTEM was found to be smooth and spherical in nature. Both FMPC and C-FMPC-Nps showed significant radical scavenging potential and anticancer property. The carbonate ester backbone and the moiety present in chitosan-FMPC-nanoparticles, underwent hydrolysis at the targeted cancer causing microenvironment to release vanillin and chitosan and enhance the anticancer activity. Both FMPC and C-FMPC-Nps exhibits a dose dependent cytotoxicity towards the different cell lines and it was tested with a commercial drug for application studies. Effective synthesis of FMPC, successful incorporation onto chitosan nanoparticles for the formation of C-FMPC-Nps. The formed Schiff base compound proves to have enhanced antioxidant and anticancer efficacy.
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http://dx.doi.org/10.1007/s11033-019-04887-4 | DOI Listing |
Bioact Mater
May 2025
Bioscience and Biomedical Engineering Thrust, The Hong Kong University of Science and Technology (Guangzhou), Guangzhou, 511400, China.
Tumor microenvironment governs various therapeutic tolerability of cancer such as ferroptosis and immunotherapy through rewiring tumor metabolic reprogramming like Warburg metabolism. Highly expressed carbonic anhydrases (CA) in tumor that maintaining the delicate metabolic homeostasis is thus the most potential target to be modulated to resolve the therapeutic tolerability. Hence, in this article, a self-healable and pH-responsive spermidine/ferrous ion hydrogel loaded with CA inhibitor (acetazolamide, ACZ) and glucose oxidase (ACZ/GOx@SPM-HA Gel) was fabricated through the Schiff-base reaction between spermidine-dextran and oxidized hyaluronic acid, along with ferrous coordination.
View Article and Find Full Text PDFHerein, a novel magnetic resorcinol-formaldehyde-supported isatin-Schiff-base/Fe complex (FeO@RF-ISB/Fe) is prepared and characterized and its catalytic performance is investigated in the synthesis of pyrano[2,3-]pyrimidines. The FeO@RF-ISB nanomaterial was prepared through the chemical immobilization of (3-aminopropyl)trimethoxysilane over the FeO@RF composite, followed by treatment with isatin. The FeO@RF-ISB was then reacted with FeCl·6HO to afford the FeO@RF-ISB/Fe nanocatalyst.
View Article and Find Full Text PDFChem Biodivers
January 2025
University of KwaZulu-Natal College of Agriculture Engineering and Science, Department of Chemistry, Westville Campus, Durban, SOUTH AFRICA.
A new series of quinoline Schiff-bases was designed, synthesized, and characterized using 1H NMR, 13C NMR, and HRMS analysis. Further, all the compounds were screened for their antitubercular, antibacterial, and antifungal activity, and the minimum inhibitory concentrations (MICs) were determined. Among all, compound 7f displayed a significantly potent broad-spectrum antitubercular and antimicrobial activity against most of the tested strains of bacteria and fungi, with MIC values in the range of 1.
View Article and Find Full Text PDFTalanta
January 2025
Institute of Environmental Science and School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan, 030006, China. Electronic address:
Lipid droplets (LDs) are essential organelles used to store lipids and participate in cellular lipid metabolism. Imaging LDs is an intuitive approach to comprehend their biological functions. Herein, the LDs-targeted CDs (LD-CDs) featuring robust solvatochromic emission were elaborately designed by a Schiff base reaction using 1, 2-diamino-4-fluorobenzene, 3-dimethylaminophenol, and thiourea as precursors.
View Article and Find Full Text PDFJ Inorg Biochem
January 2025
Department of Pharmaceutical Engineering, Anhui Provincial Key Laboratory of Tumor Evolution and Intelligent Diagnosis and Treatment, Bengbu Medical University, Bengbu 233030, PR China. Electronic address:
Two Gd(III) complexes [GdL(HO)(NO)(CHOH)(CHCHOH)] (Gd1) and [Gd(OOCCH)L(HO)]•2(HO) (Gd2) (HL = 2-pyridylcarboxaldehyde isonicotinoylhydrazone) were synthesized with a Schiff base ligand. Crystallographic study reveals both Gd1 and Gd2 have a zero-dimensional mononuclear or binuclear structure. Magnetic investigations demonstrate that Gd1 and Gd2 exhibit potential magnetocaloric effects due to Gd(III) ions, which provide negligible magnetic anisotropy, and possess low-lying excited spin states.
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