Nanophotonics

M. (2006) Ahgned silver nanorod arrays for surface-enhanced Raman scattering. Nanotechnology, 17, 2(>70-2(>74, (b) Lu, Y, Liu, G.L., Kim, J., Mejia, Y.X. and Lee, L.P. (2005) Nanophotonic crescent moon structures with sharp edge for ultrasensitive biomolecular detection by local electromagnetic field enhancement effect Nano Letters, 5, 119-124 ... 

Oikawa, H., Masuhara, A., Kasai, H., Mitsui, X, Sekiguchi, T. and Nakanishi, H. (2004) Nanophotonics integrating photochemistry, optics and nano/bio materials studies, in Proceedings of the International Nanophotonics Symposium Handai, vol. 1 (eds H. Masuhara and S. Kawata), Elsevier Science, Amsterdam, pp. 205-224. 

By changing the ultrasound power, changes in the mesoporosity of ZnO nanoparticles (average pore sizes from 2.5 to 14.3 nm) have been observed. In addition to the changes in mesoporosity, changes in the morphology have also been noted [13]. Recently, Jia et al. [14] have used sonochemistry and prepared hollow ZnO microspheres with diameter 500 nm assembled by nanoparticles using carbon spheres as template. Such specific structure of hollow spheres has applications in nanoelectronics, nanophotonics and nanomedicine. 

In the previous section first results with promising nanophotonic sensor devices have been demonstrated. It is still some work needed before low-cost, high sensitive and complex optical sensors with a large number of optical functions will be available. For the increase in sensitivity and... 

Sumetsky, M. Dulashko, Y. DiGiovanni, D. J., Optical surface microscopy with a moving microsphere, In Nanophotonics Topical Meeting, OSA, Uncasville, 2006... 

Optically Resonant Nanophotonic Devices for Label-Free Biomolecular Detection... 

The goal of this chapter will be to provide an overview of the use of planar, optically resonant nanophotonic devices for biomolecular detection. Nanophotonics23 24 represents the fusion of nanotechnology with optics and thus it is proposed that sensors based on this technology can combine the advantages of each as discussed above. Although many of the issues are the same, we focus here on optical resonance rather than plasmonic resonance (such as is used in emerging local SPR and surface-enhanced Raman spectroscopy-based biosensors). 

Immobilization of Biological Recognition Elements Over Nanophotonic Biosensors... 

It is often desirable to immobilize different biomolecules on different sensing elements in close proximity on the same nanophotonic sensor in the development of a multiplexed sensor. This is the case in the example of parallel ID photonic crystal resonators described in Sect. 16.4. Cross-contamination of biomolecules must be avoided in order to preserve high specificity. We have found that a combination of parylene biopatteming and polydimethylsiloxane (PDMS) microfluidics is a convenient means to immobilized multiple biomolecules in close proximity without cross-contamination as shown in Fig. 16.8. Parylene biopatteming is first used to expose only the regions of highest optical intensity of the nanosensor for functionalization. Second, a set of PDMS microfluidics is applied to the parylene-pattemed nanophotonic sensor, and the biomolecules to be attached... 

In this chapter, we have attempted to describe broadly the advantages available from the use of planar nanophotonic devices as biomolecular detectors. We have reviewed the state of the art in these devices and described a few technical challenges involved in improving these devices. In the context of these challenges, we have introduced our Nanoscale Optofluidic Sensor Arrays which represents our attempt to address them. 

Prodi L, Battistini G, Dolci L, Montalti M, Zaccheroni N (2007) Luminescence of gold nanoparticles. In frontiers in surface nanophotonics, Springer series in optical sciences. Springer, Berlin, Heidelberg, pp 99-128 Available via http //dx.doi.org/10.1007/ 978-0-387-48951-3 5... 

J. Moloney, et al., AMR FDTD solver for nanophotonic and plasmonic applications, Proc. SPIE 5451, 97-104 (2004). 

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