journal article·2005-11-18

Magnetic Nanocrescents as Controllable Surface‐Enhanced Raman Scattering Nanoprobes for Biomolecular Imaging

G. L. Liu, Y. Lu, J. Kim, J. C. Doll, L. P. Lee

Advanced Materials· Volume 17· Issue 22
Publisher page

Abstract

Magnetic nanocrescent Raman probes (see Figure) can not only serve as stand-alone surface-enhanced Raman scattering (SERS) substrates with high local electromagnetic-field enhancement factors, but can also be controlled by external magnetic fields to produce translational and rotational motion of the nanoprobes. Their near-IR optical activities may be useful for biomedical imaging, as near-IR radiation results in deeper tissue penetration and minimal photothermal damage.
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Research context

OpenAlex topics: Gold and Silver Nanoparticles Synthesis and Applications · Spectroscopy Techniques in Biomedical and Chemical Research · Advanced biosensing and bioanalysis techniques

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References (14)

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13. The focal volume can be approximated as the volume of the cylindrical beam waist whose radiusr = 0.5 μm and lengthh = 5 μm that is πr2h = π(0.5)2 · 5 μm3 ≈ 3.8 μm3 while the volume of the single nanocrescent is about 4/3π(0.2)3 μm3 ≈ 0.038 μm3.
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