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Background: Iron oxide nanoparticles (IONPs) are excellent candidates for biomedical imaging because of unique characteristics like enhanced colloidal stability and excellent biocompatibility. Over the last decade, material scientists have developed IONPs with better imaging and enhanced optical absorbance properties by tuning their sizes, shape, phases, and surface characterizations. Since IONPs could be detected with magnetic resonance imaging, various attempts have been made to combine other imaging modalities, thereby creating a high-resolution imaging platform. Composite IONPs (CIONPs) comprising IONP cores with polymeric or inorganic coatings have recently been documented as a promising modality for therapeutic applications.
Methods: In this review, we provide an overview of the recent advances in CIONPs for multimodal imaging and focus on the therapeutic applications of CIONPs.
Result: CIONPs with phototherapeutics, IONP-based nanoparticles are used for theranostic application via imaging guided photothermal therapy.
Conclusion: CIONP-based nanoparticles are known for theranostic application, longstanding effects of composite NPs in systems should also be studied. Once such issues are fixed, multifunctional CIONP-based applications can be extended for theranostics of diverse medical diseases in the future.
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http://dx.doi.org/10.1007/s13770-019-00218-7 | DOI Listing |
Langmuir
September 2025
Key Laboratory of Functional Molecular Solids (Ministry of Education), College of Chemistry and Materials Science, Anhui Key Laboratory of Biomedical Materials and Chemical Measurement, Anhui Normal University, Wuhu 241000, China.
The sluggish kinetics and diffusion of lithium polysulfide (LiPS) intermediates lead to the decline in the capacity and rate of high-energy lithium-sulfur (Li-S) batteries. Integrating adsorbents and electrocatalysts into the Li-S system is an effective strategy for suppressing the polysulfide shuttle and enhancing the redox kinetics of sulfur species. The disordered structure of the electrocatalysts exhibits significantly enhanced catalytic activity.
View Article and Find Full Text PDFBiomed Eng Lett
September 2025
Department of Electrical & Biological Physics, Kwangwoon University, Seoul, 01897 Republic of Korea.
Purpose: This study investigates the antibacterial and anticancer activity of previously reported iron oxide (FeO)-based nanoparticles (NPs) conjugated with chlorin e6 and folic acid (FCF) in photodynamic therapy (PDT) using a human bladder cancer (BC) (T-24) cell line and three bacterial strains.
Method: To investigate the potential applicability of the synthesized NPs as therapeutic agents for image-based photodynamic BC therapy, their photodynamic anticancer activity was analyzed and the mechanisms of cell death in T-24 cells treated with these NPs were assessed qualitatively and quantitatively through atomic absorption spectroscopy, fluorescence imaging, and transmission electron microscopy.
Results: The effective localization of FCF NPs in T-24 cells were confirmed, validating their excellent cellular fluorescence and magnetic resonance imaging capabilities.
Lab Chip
September 2025
Department of Engineering Design, Indian Institute of Technology Madras, India.
Microfluidic devices offer more accurate fluid flow control and lower reagent use for uniform nanoparticle synthesis than batch synthesis. Here, we propose a microfluidic device that synthesizes uniform iron oxide nanoparticles (IONPs) for highly efficient intracellular delivery. The 3D-printed device was fabricated, comprising two inlets in the T-shaped channel with an inner diameter of 2 mm, followed by a helical mixing channel with a single outlet.
View Article and Find Full Text PDFAnal Chim Acta
November 2025
Department of Physics, University of Lucknow, Lucknow, India; Department of Physics and Astrophysics, University of Delhi, India. Electronic address:
Background: Water contamination is a global challenge, primarily due to heavy metal ions like lead (Pb), iron (Fe), cadmium (Cd), andmercury (Hg) as well as dyes. These pollutants enter the ecosystem from industrial waste and runoff, accumulate in the environment and pose a high risk to humans, animals and plants. Various sensors, such as colorimetric sensors, and electrochemical sensors have been developed to detect these ions and dyes.
View Article and Find Full Text PDFWater Res
September 2025
Key Laboratory of Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, College of Environment and Ecology, Chongqing University, Chongqing, 400045, PR China.
The advanced degradation of ferricyanide ([Fe(CN)₆]³⁻) in industrial wastewater faces dual bottlenecks of self-acidification-induced hydrogen cyanide (HCN) release and inefficient decomplexation. This study innovatively constructs an alkaline UV/Peracetic Acid (PAA) synergistic system and systematically elucidates its triple action mechanism: (1) UV irradiation at 254 nm directly drives ligand-to-metal charge transfer (LMCT) excitation of ferricyanide, achieving efficient Fe-CN bond breaking (Φ₂₅₄ = 0.235-0.
View Article and Find Full Text PDF