We report a delivery system based on Au-mesoporous silica (MS) nanoparticles functionalized with acetylcholinesterase on the Au face as a control unit and with disulfide-containing oligo(ethylene glycol) chains on the MS face as caps. The control unit handles the chemical information in the environment (the presence of acetylthiocholine or enzyme inhibitors) that results in a tuned cargo delivery from the nanocarrier. The nanodevice displayed an enhanced cargo delivery in cancer cells (safranin O and doxorubicin) in the presence of acetylthiocholine.
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http://dx.doi.org/10.1039/c7tb02045g | DOI Listing |
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January 2025
Department of Engineering Design, Indian Institute of Technology Madras, India.
High throughput intracellular delivery of biological macromolecules is crucial for cell engineering, gene expression, therapeutics, diagnostics, and clinical studies; however, most existing techniques are either contact-based or have throughput limitations. Herein, we report a light-activated, contactless, high throughput photoporation method for highly efficient and viable cell transfection of more than a million cells within a minute. We fabricated reduced graphene oxide (rGO) nanoflakes that was mixed with a polydimethylsiloxane (PDMS) nanocomposite thin sheet with an area of 3 cm and a thickness of ∼600 μm.
View Article and Find Full Text PDFCurr Opin Chem Biol
January 2025
Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CiQUS), Departamento de Química Orgánica, Universidade de Santiago de Compostela, 15705, Santiago de Compostela, Spain. Electronic address:
Transmembrane ion exchange controls biological functions and is essential for life. Over the years, a great variety of nature-inspired artificial ion channels and carriers have been synthesized to control and promote ion exchange across biological membranes. In this context, peptides emerged as ideal scaffolds for synthetic ion channels due to their biocompatibility, accessibility and chemical versatility.
View Article and Find Full Text PDFACS Biomater Sci Eng
January 2025
Molecular Science and Biomedicine Laboratory, State Key Laboratory for Chemo/Bio-Sensing and Chemometrics, College of Material Science and Engineering, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China.
Nanomedicine is revolutionizing precision medicine, providing targeted, personalized treatment options. Lipid-based nanomedicines offer distinct benefits including high potency, targeted delivery, extended retention in the body, reduced toxicity, and lower required doses. These characteristics make lipid-based nanoparticles ideal for drug delivery in areas such as gene therapy, cancer treatment, and mRNA vaccines.
View Article and Find Full Text PDFPharmaceutics
December 2024
The Second Clinical College of Guangzhou University of Chinese Medicine, Guangzhou 510120, China.
Psoriasis is a chronic inflammatory polygenic disease with significant impacts on skin and joints, leading to substantial treatment challenges and healthcare costs. The quest for novel therapeutic avenues has recently highlighted extracellular vesicles (EVs) due to their potential as biomarkers and therapeutic agents in autoimmune diseases, including psoriasis. EVs are nano-sized, lipid membrane-bound particles secreted by cells that have emerged as promising tools for targeted drug delivery, owing to their unique structure.
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