A5044188313- Characterization and Applications of Magnetic Nanoparticles
- Magnetic Properties and Synthesis of Ferrites
- Nanoparticle-Based Drug Delivery
- Advanced Memory and Neural Computing
- Organic Electronics and Photovoltaics
- Thin-Film Transistor Technologies
- Electronic and Structural Properties of Oxides
- Glass properties and applications
- Magnetic Properties and Applications
- Iron oxide chemistry and applications
- Geomagnetism and Paleomagnetism Studies
- Solid State Laser Technologies
- Magnetic properties of thin films
- Organic and Molecular Conductors Research
- Photonic Crystal and Fiber Optics
- Gold and Silver Nanoparticles Synthesis and Applications
- Magnetic and Electromagnetic Effects
- Semiconductor materials and devices
- Conducting polymers and applications
- Metallic Glasses and Amorphous Alloys
- Perovskite Materials and Applications
- Electrohydrodynamics and Fluid Dynamics
- Minerals Flotation and Separation Techniques
- Organic Light-Emitting Diodes Research
- Microfluidic and Bio-sensing Technologies
Leibniz Institute of Photonic Technology
2015-2024
ThyssenKrupp (Germany)
2024
Friedrich Schiller University Jena
2010-2021
IMEC
2006-2017
Imec the Netherlands
2013-2015
KU Leuven
2010-2015
Institute of Electrical and Electronics Engineers
2013
University of Rostock
2011
Clemson University
2010
Laboratoire Matière et Systèmes Complexes
2010
Loss processes in magnetic nanoparticles are discussed with respect to optimization of the specific loss power (SLP) for application tumour hyperthermia. Several types iron oxide representative different preparation methods (wet chemical precipitation, grinding, bacterial synthesis, size fractionation) subject a comparative study structural and properties. Since useful hyperthermia is restricted by serious limitations alternating field amplitude frequency, effects latter investigated...
When using magnetic nanoparticles as a heating source for particle hyperthermia it is of particular interest to know if the particles are free move in interstitial fluid or fixed tumour tissue. The immobilization state determines relaxation behaviour administered and thus their specific power. To investigate this behaviour, multicore were injected into experimentally grown tumours mice treatment was carried out an alternating field (H = 25 kA m − 1, f 400 kHz). tested well suited they heated...
In this letter, we explore the influence of CuxTe1-x layer composition (0.2 < x 0.8) on resistive switching CuxTe1−x/Al2O3/Si cells. While > 0.7 leads to large reset power, similar pure-Cu electrodes, 0.3 results in volatile forming properties. The intermediate range 0.5 shows optimum memory properties, featuring improved control filament programming using <5 μA as well state stability at 85 °C. composition-dependent and are closely associated with phases CuxTe1−x...
Gravure-printed dielectric films are presented, which 100-nm thick, have about 1-nm root mean-square surface roughness and show high electric field strength (>300 MV/m). This is combined with an ultra-thin—less than 10 nm—layer of poly(α-methylstyrene) on top gives state-of-the-art field-effect mobility in transistors thermally-evaporated pentacene (0.6 cm2/Vs) zone-cast TIPS-pentacene (0.3 cm2/Vs).
Magnetorheological elastomers are a type of smart hybrid material where elastic properties soft elastomer matrix combined with magnetic micro particles. This combination leads to complex interplay and phenomena, which the magnetorheological effect is best described. In this paper, magnetically hard NdFeB-particles were used obtain remanent properties. X-ray microtomography has been utilised analyse particle movement induced by fields. A tracking was performed; thus, it possible characterise...
Superparamagnetic iron oxide nanoparticles (SPIONs) have attracted increasing attention in many biomedical fields. In magnetic drug targeting SPIONs are injected into a tumour supplying artery and accumulated inside the with magnet. The effectiveness of this therapy is thus dependent on properties, stability biocompatibility particles. A good knowledge effect storage conditions those parameters utmost importance for translation concept clinic reproducibility preclinical studies. Here, core...
The generally observed bipolar electrical switching of Cu\CuTCNQ\metal memories (metal=Al,Yb,Ti) between two stable resistance states is shown to occur at the CuTCNQ\metal interface and not in bulk CuTCNQ. explained by a model involving electrochemical formation dissolution Cu filaments interface. In this mechanism, CuTCNQ acts as solid ionic conductor source for Cu+ cations. also explains earlier reported findings devices, including apparently contradictory observation that neutral TCNQ...
Magnetically induced heating of magnetic nanoparticles (MNP) in an alternating field (AMF) is a promising minimally invasive tool for localized tumor treatment by sensitizing or killing cells with the help thermal stress. Therefore, selection MNP exhibiting sufficient capacity (specific absorption rate, SAR) to achieve satisfactory temperatures vivo necessary. Up now, SAR mainly determined using ferrofluidic suspensions and may distinctly differ from due immobilization tissues cells. The aim...
This paper describes the preparation and obtained magnetic properties of large single domain iron oxide nanoparticles. Such ferrimagnetic particles are particularly interesting for diagnostic therapeutic applications in medicine or (bio)technology. The were prepared by a modified oxidation method non-magnetic precursors following green rust synthesis characterized regarding their structural properties. For increasing temperatures (5 to 85 °C), an particle size range 30 60 nm is observed....
Abstract Optical fiber with YPO 4 :Pr 3+ nanocrystals (NCs) is presented for the first time using glass powder—NCs doping method. The method’s advantage separate preparation of NCs and to preserve luminescent optical properties once they are incorporated into fiber. were synthesized by co-precipitation hydrothermal methods, optimized size (< 100 nm), shape, Pr ions concentration (0.2 mol%), emission lifetime. core was selected from non-silica P 2 O 5 -containing system refractive index (...