Multifunctional mesoporous silica nanocomposites are attractive carriers for targeted drug delivery in nanomedicine. Although promising developments have been made in the fabrication of multifunctional mesoporous silica nanocomposites, the design and mass production of novel multifunctional carriers are still challenging. This paper reports the facile one-pot fabrication of a multifunctional inorganic composite composed of superparamagnetic Fe3O4 nanoparticles and coated dye-functionalized mesoporous silica with a high specific surface area. The resulting composite particles had a tunable particle size, special open pore channels with high specific surface area, which is quite favorable for drug loading and release properties, as well as luminescent and superparamagnetic properties suitable for targeted drug delivery and tracking. This composite exhibited low toxicity, suggesting potential biomedical applications.
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http://dx.doi.org/10.1088/0957-4484/24/34/345603 | DOI Listing |
ACS Appl Nano Mater
May 2022
Department of Chemistry, Oregon State University, Corvallis, Oregon 97331, United States.
The advancement of safe nanomaterials for use as optical coherence tomography (OCT) imaging and stem cell-labeling agents to longitudinally visually track therapeutic derived retinal stem cells to study their migration, survival rate, and efficacy is challenged by instability, intracellular aggregation, low uptake, and cytotoxicity. Here, we describe a series of hybrid lipid-coated gold nanorods (AuNRs) that could solve these issues. These nanomaterials were made via a layer-by-layer assembly approach, and their stability in biological media, mechanism, efficiency of uptake, and toxicity were compared with a commercially available set of AuNRs with a 5 nm mesoporous silica (mSiO)-polymer coating.
View Article and Find Full Text PDFCarbohydr Polym
March 2025
School of Materials Science and Engineering, China University of Petroleum (East China), Qingdao 266580, China; Institute of Advanced Materials, China University of Petroleum (East China), Qingdao 266580, China.
Research on stimuli-responsive micro-nanocontainers has gained attention for targeted corrosion inhibition and controlled emulsification-demulsification in oil recovery. However, existing nanocontainers face issues like irreversible drug release and limited functionality. This study presents a multi-functional nanocontainer design with reversible drug release and emulsification-demulsification capabilities.
View Article and Find Full Text PDFNaunyn Schmiedebergs Arch Pharmacol
January 2025
Institute of Life Sciences, Nalco Square, Bhubaneswar, Odisha, 751023, India.
Lung cancer continues to be the leading cause of mortality globally. Nanotechnology-mediated targeted drug delivery approach is one of the promising strategies for the treatment of lung cancer. Due to their multifactorial role, mesoporous silica nanoparticles (MSNs), have attracted a lot of attention for drug delivery.
View Article and Find Full Text PDFACS Nano
January 2025
School of Chemical Engineering, Sichuan University, Chengdu, Sichuan 610065, China.
Intracellular bacteria can evade the attack of the immune system and the bactericidal effects of most antibiotics due to the protective effect of the host cells. Herein, inspired by the stimuli-responsive behaviors of biological ion channels, a kind of synergistic cascade potassium ion (K)-responsive nanoparticles gated with K-responsive polymers is ingeniously designed to target intracellular bacteria and then control drug release. Due to the cooperative interaction of host-guest complexation and conformational transition of K-responsive polymers, the grafted gates based on these polymers could recognize high K concentration to reverse the negatively charged nanoparticles into positively charged ones for targeting bacteria and subsequently inducing a switch from the hydrophobic shrinking "off" state to the hydrophilic stretching "on" state for drug release.
View Article and Find Full Text PDFPharmaceuticals (Basel)
December 2024
Department of Pharmaceutics and Pharmaceutical Technology, Faculty of Pharmacy, Universitas Padjadjaran, Jl. Raya Bandung-Sumedang Km. 21, Bandung 45363, Indonesia.
Medicinal plants are increasingly being explored due to their possible pharmacological properties and minimal adverse effects. However, low bioavailability and stability often limit efficacy, necessitating high oral doses to achieve therapeutic levels in the bloodstream. Mesoporous silica nanoparticles (MSNs) offer a potential solution to these limitations.
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