Results 131 to 140 of about 48,877 (253)

Synthesis of superparamagnetic magnetite nanoparticles

Тонкие химические технологии, 2010
The article is focused on the research of influence of various synthesis parameters (the rate of magnetite formation, iron salts mole ratio, nature and concentration of precipitator and process temperature) on the magnetic properties of magnetite nanoparticles.
A. Yu. Gervald, N. I. Prokopov, Yu. M. Shiryakina   +2 more
openaire   +1 more source

Who Lives in a Tin Can Under the (Ultrasonic) Sea: Sponges Made From Perfluoropyridine‐Derived Thiol‐Ene Polymerizations

Journal of Polymer Science, EarlyView.
Tandem mechanochemical‐sonochemical for the strategic synthesis for 2,4,6‐trisubstituted derivatives of perfluoropyridine as bio‐based prepolymer materials. ABSTRACT Substitution of perfluoropyridine (PFP) in the 4‐position through an SNAr reaction is facile through mechanochemical methods, with yields in excess of 99% and short reaction times on a ...
Jason Pulfer, Miriam Aldom, Maxime Colpaert, Andrea Kelley, Tim Storr, Chadron M. Friesen   +5 more
wiley   +1 more source

Liquid‐Phase Fabrication of Janus 2D Materials: Defect‐Rich MoS2 Ultrathin Layers Asymmetrically Decorated with Au Nanoparticles

Small, EarlyView.
This work presents a versatile strategy for asymmetrically decorating MoS2 flakes using SiO2 microspheres as masking templates. The Janus MoS2 exhibits a 1.9‐fold enhancement in photoluminescence (PL) due to the incorporation of Au nanoparticles (NPs), primarily dominated by B exciton emission, which is attributed to defect‐rich structures.
Natalia V. Vassilyeva, Alicia Forment‐Aliaga, Eugenio Coronado   +2 more
wiley   +1 more source

Reprogramming Immunogenicity of Iron Oxide Nanoparticles through Sulfated Glycan Presentation

Small, EarlyView.
This study presents a comparative analysis of heparin (HP)‐ and dextran sulfate (DS)‐coated superparamagnetic iron oxide nanoparticles (SPIONs) as a tunable immunomodulatory platform where surface chemistry dictates therapeutic function. DS‐SPIONs are preferentially internalized by myeloid cells, reprogramming them into a pro‐healing M2 phenotype ...
Negin Pournoori, Heela Sarlus, Dick J. Sjöström, Rohith Pavan Parvathaneni, Oommen P. Varghese, Vesa P. Hytönen, Robert A. Harris, Per H. Nilsson, Oommen P. Oommen   +8 more
wiley   +1 more source

Ligand‐Driven Optimization of Iron Oxide Nanoprobes for In Vivo MRI Enhancement at Ultra‐High Field

Small, EarlyView.
Ligand‐tailored iron oxide nanoparticles reveal how surface chemistry controls T2 relaxivity and in vivo performance in ultra‐high‐field MRI. Systematic variation of hydrophilicity and charge across five coatings modulated r2 by up to 333 mm−1 s−1, with chemical properties, rather than shell thickness, dictating magnetic dephasing and enabling reliable
Pelayo García‐Acevedo, María Luz Alonso‐Alonso, Sara Ortega‐Espina, Manuel Bañobre‐López, Yolanda Piñeiro, Ramón Iglesias‐Rey, José Rivas   +6 more
wiley   +1 more source

Machine Learning on Systematically Curated Data Reveals Key Determinants of Magnetic Hyperthermia Performance

Small, EarlyView.
This study presents a machine‐learning (ML) framework to predict the specific absorption rate (SAR) of superparamagnetic iron oxide nanoparticles (SPIONs) for magnetic hyperthermia. A curated dataset comprising 30 intrinsic and extrinsic features revealed strong nonlinear dependencies.
Edgar Régulo Vega‐Carrasco, Shaquib Rahman Ansari, Jiaxi Zhao, Yael del Carmen Suárez‐López, Per Larsson, Alexandra Teleki   +5 more
wiley   +1 more source

Separation of Magnetic Microparticles With Different Molecular Surface Functionalizations by Close‐to‐Surface Traveling‐Wave Magnetophoresis

Small, EarlyView.
Inducing surface‐near magnetic particle transport inside a static liquid via an engineered, dynamic potential energy landscape, different chemical surface properties of otherwise identical particles can be distinguished using simple optical observation.
Yahya Shubbak, Katharina Eichhorn, Nikolai Weidt, Arne Vereijken, Rico Huhnstock, Arno Ehresmann   +5 more
wiley   +1 more source

Performance Evaluation of Magnetite Nanoparticles Modified with Sodium Alginate for the Removal of Acid Red 18 Dye from Aqueous Solutions

Muhandisī-i Bihdāsht-i Muḥīṭ, 2014
Background: Azo dyes have many applications in various industries. In addition to Mutagenic and carcinogenic potential to humans, these materials cause the production of toxic byproducts in the aqueous solutions.
Mohammad Reza Samarghandi, Ali Reza Rahmani, Reza Shokohi, Zohre Berizi   +3 more
doaj  

Activatable smart contrast agents for photoacoustic imaging

Smart Molecules, EarlyView.
This review highlights recent advances in smart activatable photoacoustic imaging (PAI) contrast agents, which dynamically modulate their optical properties in response to external stimuli or microenvironmental cues. It discusses their molecular design, activation mechanisms, biomedical applications, and future prospects for clinically tailored use ...
Donghyeon Oh, Jihye Lee, Suyoung Park, Juyoung Yoon, Won Jong Kim, Chulhong Kim   +5 more
wiley   +1 more source

Investigation of Dielectric and Thermal Properties of Mineral Oil‐Based Fe3O4‐Coated SiO2 Core‐Shell Nanofluids

High Voltage, EarlyView.
ABSTRACT This study investigates the dielectric and thermal properties of transformer oil‐based nanofluids incorporating Fe3O4‐coated SiO2 core–shell nanoparticles as nanofillers. The nanoparticles were synthesised with varying shell thicknesses, and two samples underwent surface treatment.
Mohamed H. Abdo, El‐Sayed M. El‐Refaie, Abd Elrahman S. Tawfic, Diaa‐Eldin A. Mansour   +3 more
wiley   +1 more source