Results 41 to 50 of about 16,581 (207)

Magnetite nanoparticles for medical MR imaging

Materials Today, 2011
Nanotechnology has given scientists new tools for the development of advanced materials for the detection and diagnosis of disease. Iron oxide nanoparticles (SPIONs) in particular have been extensively investigated as novel magnetic resonance imaging (MRI) contrast agents due to a combination of favorable superparamagnetic properties, biodegradability,
Stephen, Zachary R., Kievit, Forrest M., Zhang, Miqin   +2 more
openaire   +2 more sources

Smart Nanotechnologies for Multimodal Neuromodulation and Brain Interfacing

Advanced Science, EarlyView.
Recent advances in smart nanotechnologies are expanding the toolbox for brain interfacing, from wireless neuromodulation and high‐resolution sensing to targeted delivery within the central nervous system. By combining responsive nanomaterials with bioinspired design, these platforms enable multimodal interactions with neurons and glia, while also ...
Tommaso Curiale, Marie Celine Lefevre, Alessio Carmignani, Maria Cristina Ceccarelli, Matteo Battaglini, Attilio Marino, Gianni Ciofani   +6 more
wiley   +1 more source

In Situ Mineralization of Magnetite Nanoparticles in Chitosan Hydrogel

Nanoscale Research Letters, 2009
Based on chelation effect between iron ions and amino groups of chitosan, in situ mineralization of magnetite nanoparticles in chitosan hydrogel under ambient conditions was proposed. The chelation effect between iron ions and amino groups in CS–Fe
Wang Yongliang, Li Baoqiang, Zhou Yu, Jia Dechang   +3 more
doaj   +1 more source

Environmentally Compatible Synthesis of Superparamagnetic Magnetite (Fe3O4) Nanoparticles with Prehydrolysate from Corn Stover

BioResources, 2013
An environmentally compatible and size-controlled method has been employed for synthesis of superparamagnetic magnetite nanoparticles with prehydrolysate from corn stover.
Chunming Zheng, Peipei Chen, Shoumin Bao, Jun Xia, Xiaohong Sun   +4 more
doaj   +1 more source

Remote Magnetomechanical Neuromodulation Uncovers Therapeutic Mechanisms for Alleviating Parkinsonian Symptoms in Freely Moving Mice

Advanced Science, EarlyView.
Magnetomechanical neuromodulation using magnetic nanodiscs enables remote activation of neurons. In a hemiparkinsonian mouse model, alternating magnetic fields actuate the nanodiscs to generate torque that opens mechanosensitive ion channels within the subthalamic nucleus, thereby modulating basal ganglia motor circuitry.
Anouk Wolters, Lorenzo Signorelli, Christian Herff, Sophia Gimple, Renzo Riemens, Gunter Kenis, Kim Rijkers, Hamed Shabani, Jyh‐Jang Sun, Yasin Temel, Hans Clusmann, Danijela Gregurec, Sarah‐Anna Hescham   +12 more
wiley   +1 more source

Nanostructured magnetic alginate composites for biomedical applications

Polímeros
This is a study of the preparation and characterization of polymeric-magnetic nanoparticles. The nanoparticles used were magnetite (Fe3O4) and the chosen polymers were alginate and chitosan.
Pedro Marins Bedê, Marcelo Henrique Prado da Silva, André Ben-Hur da Silva Figueiredo, Priscilla Vanessa Finotelli   +3 more
doaj   +1 more source

Nanomaterials for Allergy Diagnosis and Treatment: Advances, Opportunities and Translational Challenges

Advanced Science, EarlyView.
Nanomaterials offer dual applications in allergy management. For diagnosis, nanomaterials enhance analytical sensitivity and improve detection in specific IgE and functional assays such as the basophil activation test (BAT). For allergen‐specific immunotherapy, nanomaterials enable allergen masking and controlled release, and effectively modulate the ...
Madiha Habib, Shan Jiang, Joyce ZX Lee, CW Lim, HL Yeung, Nicki YH Leung, Patrick SC Leung, Ting F Leung, Christine YY Wai   +8 more
wiley   +1 more source

Combinatorial Evolution of Biomimetic Magnetite Nanoparticles

Advanced Functional Materials, 2017
Inspired by Nature's capacity to synthesize well‐defined inorganic nanostructures, such as the magnetite particles produced by magnetotactic bacteria, genetic algorithms are employed to combinatorially optimize the aqueous synthesis of magnetite (Fe3O4) nanoparticles through the action of copolypeptide additives.
Lenders, JJM, Bawazer, LA, Green, DC, Zope, HR, Bomans, PHH, De With, G, Kros, A, Meldrum, FC, Sommerdijk, NAJM   +8 more
openaire   +5 more sources

Surface‐Spin‐Induced Magnetic Loss Enhancement in Ultralight Electromagnetic Absorbers

Advanced Science, EarlyView.
Fe3O4 nanoparticles with different hollow rates were synthesized to demonstrate the key role of surface moment in magnetic loss process. Using the same volume filling ratio, the 54.1% hollow Fe3O4 absorber represents about 20% enhancement in the imaginary part (μ'') than solid particles due to the coexisting magnetic resonance of inside and outside ...
Ruimin Ren, Ke Yang, Chichong Lu, Song Ma, Bowen Zheng, Zhenhui Ma   +5 more
wiley   +1 more source

A Study on Stability of Magnetite Nanoparticles Suspension in Water by Zeta Potential Measurements

Scientific Bulletin of Valahia University: Materials and Mechanics
The paper presents an experimental research on the stability of an aqueous suspension containing 35% magnetite nanoparticles (MNPs) using the zeta potential measurement method.
Brezoi Dragoş-Viorel, Gheboianu Anca Irina, Trică Bogdan   +2 more
doaj   +1 more source