An electro-oxidative cyclization pathway in which hydrazones are selected as starting materials to generate amphiphiles by reacting with benzylamines and benzamides was reported. This strategy successfully prepared a series of 1,2,4-triazoles in satisfactory yields. Moreover, the use of cheap stainless steel as the anode, the feasibility to conduct the transformation as a one-pot reaction and the proof that scaling-up these reactions is possible make this transformation attractive for potential application in industry.
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http://dx.doi.org/10.1002/open.202100268 | DOI Listing |
Bioorg Med Chem
January 2025
School of Pharmacy, Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Guizhou International Science & Technology Cooperation Base of Medical Optical Theranostics Research, Zunyi Medical University, Zunyi, Guizhou 563003, PR China. Electronic address:
A series of aggregation-induced emission luminogens (AIEgens) with donor-π-acceptor (D-π-A) architecture were rationally designed and synthesized through π-bridge engineering for dual-modal photodynamic and photothermal therapy. The AIEgens (TPT, TFT, and TTT) were constructed using methoxy-substituted tetraphenylene as the electron donor and tricyanofuran as the electron acceptor, connected via different π-bridges (phenyl, furan, or thiophene). These compounds exhibited red-shifted absorption (460-545 nm) and emission (712-720 nm) with remarkable aggregation-induced emission characteristics.
View Article and Find Full Text PDFJ Phys Chem B
January 2025
Department of Polymers for Electronics and Photonics, Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovského nám. 2, Prague 6 162 00, Czech Republic.
The structural response of 1,2-dimyristoyl-glycero-3-phosphatidylcholine (DMPC)/water bilayers to addition and subsequent solvation of a small amphiphilic molecule - an anesthetic benzyl alcohol - was studied by means of solid-state NMR (H NMR, P NMR) spectroscopy and low-angle X-ray diffraction. The sites of binding of this solute molecule within the bilayer were determined - the solute was shown to partition between several sites in the bilayer and the equilibrium was shown to be dynamic and dependent on the level of hydration and temperature. At the same time, it was shown that solubilization of benzyl alcohol reached a solubility limit and was terminated when the ordering profile of DMPC hydrocarbon chains adopted finite limiting values throughout the whole chain.
View Article and Find Full Text PDFEur J Pharm Biopharm
January 2025
Department of Biophysics, Faculty of Science, P. J. Safarik University in Kosice, Jesenna 5 041 54 Kosice, Slovakia; SAFTRA Photonics sro., Moldavska cesta 51 04011 Kosice, Slovakia.
Due to the straightforward single-step synthesis, amphiphilic gradient copoly(2-oxazoline)s are becoming more popular alternative to their block analogue for the development of next-generation drug delivery systems. Here, we investigated the influence of polymer architecture on the physiochemical and biological assessment of nanoformulations formed by the self-assembly of gradient copoly(2-oxazoline)s. Two different architectures were synthesized: hydrophilic-grad-hydrophobic (mono-gradient) and hydrophobic-grad-hydrophilic-grad-hydrophobic (di-gradient) which contained a hydrophilic monomer, 2-ethyl-2-oxazoline (EtOx) and a hydrophobic monomer, 2-phenyl-2-oxazoline (PhOx).
View Article and Find Full Text PDFInt J Pharm
January 2025
School of Traditional Chinese Pharmacy, State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 211198, PR China. Electronic address:
Compared to conventional nanocarrier-based drug delivery technology, small-molecule-assembled nanomaterials provide various advantages, including higher drug loading efficiency, lower excipient-related toxicity, and a simpler formulation process. Our research constructed a mannonse-modified small-molecule-assembled nanodrug for synergistic photodynamic/chemotherapy against A549 cancer cells. The hydrophobic hypoxic-activated agent tirapazamine (TPZ) and a hydrophilic fluorescence probe Cyanine 3 (Cy3) constitute this amphiphilic prodrug via a glutathione (GSH)-responsive linkage, which could self-assemble into stable nanoparticles (NPs) and encapsulate a newly synthesized photosensitizer (SeBDP).
View Article and Find Full Text PDFACS Appl Bio Mater
January 2025
Department of Applied Chemistry, Rajiv Gandhi Technological University, Bhopal 462033, Madhya Pradesh, India.
Deciphering the most promising strategy for the evolution of cancer patient management remains a multifaceted, challenging affair to date. Additionally, such approaches often lead to microbial infections as side effects, probably due to the compromised immunity of the patients undergoing such treatment. Distinctly, this work delineates a rational combinatorial strategy harnessing stereogenic harmony in the diphenylalanine fragment, tethering it to an amphiphile 12-hydroxy-lauric acid at the N-terminus (compounds -) such that a potential therapeutic could be extracted out from the series.
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