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FA-PEG Modified ZIF(Mn) Nanoparticles Loaded with Baicalin for Imaging-Guided Treatment of Melanoma in Mice.
Int J Nanomedicine
December 2024
Department of Dermatology, Affiliated Hospital of Shandong Second Medical University, School of Clinical Medicine, Shandong Second Medical University, Weifang, 261031, People's Republic of China.
Background: Melanoma is an aggressive skin tumor with limited therapeutic options due to rapid proliferation, early metastasis, and poor prognosis. Baicalin (BA), a natural flavonoid, shows promise in inducing ferroptosis and apoptosis but faces challenges of poor solubility and bioavailability. To address these issues, we developed a multifunctional drug delivery system: manganese-doped ZIF-8 nanoparticles (ZIF(Mn)) loaded with BA and modified with folic acid (FA) and polyethylene glycol (PEG).
View Article and Find Full Text PDFA practical, biomimetic, one-pot synthesis of firefly luciferin.
Sci Rep
December 2024
Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya, 464-8601, Japan.
The bioluminescence reaction of firefly luciferase with D-luciferin has become an indispensable imaging technique in modern biology and life science experiments, but the high cost of D-luciferin is limiting its further application. Here, we report a practical, one-pot synthesis of D-luciferin from p-benzoquinone (p-BQ), L-cysteine methyl ester and D-cysteine, with an overall yield of 46%. Our route, which is six steps in length and proceeds via 2-cyano-6-hydroxybenzothiazole, is inspired by the mechanistic study of our previously reported biomimetic, non-enzymatic, one-pot formation of L-luciferin from p-BQ and L-cysteine.
View Article and Find Full Text PDFOne-Pot Synthesis of Tumor-Targeted Gold-Doped CuS Plasmonic Nanodots for Enhanced NIR-Triggered, pH-Responsive PTT/PDT/CDT.
ACS Appl Mater Interfaces
December 2024
Centre for Nanotechnology, Indian Institute of Technology Roorkee, Roorkee 247667, India.
Copper-based sulfides are attractive candidates for NIR I and II responsive photothermal therapy but often suffer from high hydrophobicity, suboptimal photothermal conversion, and poor biostability and biocompatibility. In the present work, a rapid, one-pot synthesis method was developed to obtain Au-doped CuS (ACSH NDs) dual plasmonic nanodots. ACSH NDs exhibit excellent peroxidase-like catalytic activity for pH-responsive OH radical generation along with efficient glutathione depletion under tumor microenvironment mimicking conditions.
View Article and Find Full Text PDFHeterocoupling Two Similar Benzyl Radicals by Dual Photoredox/Cobalt Catalysis.
Angew Chem Int Ed Engl
December 2024
Zhengzhou University, College of Chemistry, and Pingyuan Laboratory, CHINA.
Transition-metal-regulated radical cross coupling enables the selective bonding of two distinct transient radicals, whereas the catalytic method for sorting two almost identical transient radicals, especially similar benzyl radicals, is still rare. Herein, we show that leveraging dual photoredox/cobalt catalysis can selectively couple two similar benzyl radicals. Using easily accessible methylarenes and phenylacetates (benzyl N-hydroxyphthalimide (NHPI) esters) as benzyl radical sources, a range of unsymmetrical 1,2-diarylethane classes via the 1°-1°, 1°-2°, 1°-3°, 2°-2°, 2°-3° and 3°-3° couplings were obtained with broad functional group tolerance.
View Article and Find Full Text PDFAn improved ultrasound-assisted synthesis of phenytoin suitable for undergraduate education.
Ultrason Sonochem
December 2024
School of Pharmaceutical Engineering, Jiangsu Food & Pharmaceutical Science College, Huaian, Jiangsu 223003, PR China. Electronic address:
A convenient and efficient method for undergraduate student experiments involves the one-pot synthesis of phenytoin from benzoin. This method utilized ultrasonic irradiation in the presence of basic catalyst at room temperature and atmospheric pressure, resulting in shortened reaction times, good yields, and excellent reproducibility. By employing a low-cost ultrasonic cleaner for ultrasonic irradiation in student experiments, the need for expensive equipment investment during the teaching process can be minimized.
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