Electric-field responsive contrast agent based on liquid crystals and magnetic nanoparticles

Lamar O. Mair; Luz J. Martinez-Miranda; Lynn K. Kurihara; Aleksandar Nacev; Ryan Hilaman; Sagar Chowdhury; Sahar Jafari; Said Ijanaten; Claudian da Silva; James Baker-McKee; Pavel Y. Stepanov; Irving N. Weinberg

doi:10.1063/1.5007708

journal article·2018-05-01Open access

Electric-field responsive contrast agent based on liquid crystals and magnetic nanoparticles

Lamar O. Mair, Luz J. Martinez-Miranda, Lynn K. Kurihara, Aleksandar Nacev, Ryan Hilaman, Sagar Chowdhury, Sahar Jafari, Said Ijanaten, Claudian da Silva, James Baker-McKee, Pavel Y. Stepanov, Irving N. Weinberg

AIP Advances· Volume 8· Issue 5

Publisher page Open full text

Source abstract

Abstract

The properties of liquid crystal-magnetic nanoparticle composites have potential for sensing in the body. We study the response of a liquid crystal-magnetic nanoparticle (LC-MNP) composite to applied potentials of hundreds of volts per meter. Measuring samples using X-ray diffraction (XRD) and imaging composites using magnetic resonance imaging (MRI), we demonstrate that electric potentials applied across centimeter scale LC-MNP composite samples can be detected using XRD and MRI techniques.

Source: crossref · Quality: baseline

Research context

Nanomaterials Composites

OpenAlex topics: Liquid Crystal Research Advancements · Visual perception and processing mechanisms · Characterization and Applications of Magnetic Nanoparticles

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Weinberg Medical Physics, Inc. 1 , North Bethesda, Maryland, USA

Department of Materials Science and Engineering, University of Maryland 2 , College Park, Maryland, USA

References (9)

Show source-provided references

1. Imaging voltage in neurons10.1016/j.neuron.2010.12.010 ↗

2. Voltage imaging to understand connections and functions of neuronal circuits10.1152/jn.00226.2016 ↗

3. Analysis of the dynamics of temporal relationships of neural activities using optical imaging data10.1007/s10827-016-0630-8 ↗

4. Optical brain imaging in vivo: Techniques and applications from animal to man10.1117/1.2789693 ↗

5. Theory of magnetic suspensions in liquid crystals10.1051/jphys:01970003107069100 ↗

6. Interaction and response of a smectic-A liquid crystal to a nanometer particle: Phase transition due to the combined effect of the functionalization compound and particle size10.1063/1.3086665 ↗

7. Effect of magnetic nanoparticles and their functionalization on liquid crystal order10.1080/15421400590954894 ↗

8. Effect of the surface coating on the magnetic nanoparticle smectic-A liquid crystal interaction10.1063/1.2359430 ↗

9. Magnetically actuated liquid crystals10.1021/nl501302s ↗