We have found catechol-derivative anchor groups which possess irreversible binding affinity to iron oxide and thus can optimally disperse superparamagnetic nanoparticles under physiologic conditions. This not only leads to ultrastable iron oxide nanoparticles but also allows close control over the hydrodynamic diameter and interfacial chemistry. The latter is a crucial breakthrough to assemble functionalized magnetic nanoparticles, e.g., as targeted magnetic resonance contrast agents.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1021/nl902212q | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Size-Dependent Reduction Kinetics of Iron Oxides in Single and Mixed Mineral Systems.
Environ Sci Technol
January 2025
Geomicrobiology, Department of Geosciences, University of Tübingen, 72076 Tübingen, Germany.
Iron(III) (oxyhydr)oxide minerals with varying particle sizes commonly coexist in natural environments and are susceptible to both chemical and microbial reduction, affecting the fate and mobility of trace elements, nutrients, and pollutants. The size-dependent reduction behavior of iron (oxyhydr)oxides in single and mixed mineral systems remains poorly understood. In this study, we used microbial and mediated electrochemical reduction approaches to investigate the reduction kinetics and extents of goethite and hematite.
View Article and Find Full Text PDFZirconium-doped iron oxide nanoparticles for enhanced peroxidase-like activity.
Talanta
January 2025
College of Chemistry and Pharmaceutical Engineering, Huanghuai University, Zhumadian 463000, PR China. Electronic address:
FeO nanoparticles (NPs) have emerged as pioneering nanozymes with applications in clinical diagnosis, environmental protection and biosensing. However, it is currently limited by insufficient catalytic activity due to poor electron transfer. In this study, we synthesized electron-rich-Zr-doped defect-rich FeO NPs (ZrFeO) using a one-pot solvothermal method.
View Article and Find Full Text PDFImpact of antibiotics, iron oxide, and sodium sulfate on microbial community composition in laboratory-built municipal solid waste microcosms.
PLoS One
January 2025
Department of Earth and Environmental Sciences, University of Illinois at Chicago, Chicago, IL, United States of America.
Municipal solid waste (MSW) landfills represent underexplored microbial ecosystems. Landfills contain variable amounts of antibiotic and construction and demolition (C&D) wastes, which have the potential to alter microbial metabolism due to biocidal or redox active components, and these effects are largely underexplored. To circumvent the challenge of MSW heterogeneity, we conducted a 65-day time series study on simulated MSW microcosms to assess microbiome changes using 16S rRNA sequencing in response to 1) Fe(OH)3 and 2) Na2SO4 to represent redox active components of C&D waste as well as 3) antibiotics.
View Article and Find Full Text PDFFerroptosis in kidney disease: a bibliometric analysis from 2012 to 2024.
Front Pharmacol
January 2025
Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing, China.
Background And Aims: Ferroptosis, a novel concept of programmed cell death proposed in 2012, in kidney disease, has garnered significant attention based on evidence of abnormal iron deposition and lipid peroxidation damage in the kidney. Our study aim to examine the trends and future research directions in the field of ferroptosis in kidney disease, so as to further explore the target or treatment strategy for clinical treatment of kidney disease.
Material And Methods: A thorough survey using the Web of Science Core Collection, focusing on literature published between 2012 and 2024 examining the interaction between kidney disease and ferroptosis was conducted.
Investigation on the Heating Effects of Intra-Tumoral Injectable Magnetic hydrogels (IT-MG) for Cancer Hyperthermia.
Biomed Phys Eng Express
January 2025
Biomedical Engineering , University of Wisconsin-Milwaukee College of Engineering and Applied Science, 3203 N Downer Ave, Milwaukee, Milwaukee, Wisconsin, 53211-3029, UNITED STATES.
Capacitive-based radiofrequency (Rf) radiation at 27 MHz offers a non-invasive approach for inducing hyperthermia, making it a promising technique for thermal cancer therapy applications. To achieve focused and site-specific hyperthermia, external material is required that efficiently convert Rf radiation into localized heat. Nanomaterials capable of absorbing Rf energy and convert into heat for targeted ablation are of critical importance.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!