Strategies for nanoplasmonic core-satellite biomolecular sensors: Theory-based Design

Ross, Benjamin M.; Waldeisen, John R.; Wang, Tim; Lee, Luke P.
November 2009
Applied Physics Letters;11/9/2009, Vol. 95 Issue 19, p193112
Academic Journal
We present a systematic theoretical study of core-satellite gold nanoparticle assemblies using the Generalized Multiparticle Mie formalism. We consider the importance of satellite number, satellite radius, the core radius, and the satellite distance, and we present approaches to optimize spectral shift due to satellite attachment or release. This provides clear strategies for improving the sensitivity and signal-to-noise ratio for molecular detection, enabling simple colorimetric assays. We quantify the performance of these strategies by introducing a figure of merit. In addition, we provide an improved understanding of the nanoplasmonic interactions that govern the optical response of core-satellite nanoassemblies.


Related Articles

  • Erratum to: Increasing the Reliability of Spectral Measurements of Signal Parameters at Low Signal-to-Noise Ratios. Glinchenko, A.; Aleshechkin, A.; Komarov, V. // Measurement Techniques;Jan2016, Vol. 58 Issue 10, p1188 

    A correction to the article "Increasing the Reliability of Spectral Measurements of Signal Parameters at Low Signal-to-Noise Ratios" that was published in Volume 58, Number 9, December 2015 issue is presented.

  • Pulse-compression ultrasonic technique for the inspection of forged steel with high attenuation. Ricci, M; Senni, L; Burrascano, P; Borgna, R; Neri, S; Calderini, M // Insight: Non-Destructive Testing & Condition Monitoring;Feb2012, Vol. 54 Issue 2, p91 

    The application of a pulse-compression technique for the ultrasonic inspection of forged steel structures with high attenuation and large dimensions is presented. The performance of such a technique is theoretically analysed and validated experimentally by exploiting linear chirp signals. Based...

  • The Role of the Signal-to-Noise Ratio in Precision and Accuracy. Dolan, John W. // LC-GC Europe;Jan2006, Vol. 19 Issue 1, p12 

    The article discusses the role of the signal-to-noise ratio in precision and accuracy of liquid chromatography. The ratio determines the minimum peak size for results of liquid chromatographic method. By making use of data systems of present times, signal-to-noise ratio is often calculated as...

  • Measurement of one-bond 15N-13C' dipolar couplings in medium sized proteins. Chou, James J.; Delaglio, Frank; Bax, Ad // Journal of Biomolecular NMR;Oct2000, Vol. 18 Issue 2, p101 

    A simple and accurate method is described for measurement of 1JC'N splittings in isotopically enriched proteins. The method is of the quantitative J correlation type, and the 1JC'N splitting is derived from the relative intensity in two 3D TROSY-HNCO spectra with 1JC'N dephasing intervals of...

  • Digital filtering of signals with a priori unknown parameters. Kuzovnikov, A.; Somov, V.; Anzhina, V.; Leusenko, V. // Journal of Communications Technology & Electronics;Mar2012, Vol. 57 Issue 3, p310 

    Features of the digital filtering of signals with an unknown structure are investigated. The analysis of combined application of various digital filtering algorithms aimed at the increase of the signal-to-noise ratio is provided. A quasi-optimal filtering algorithm for the input signal with a...

  • Processing of speech signals using a microphone array for intelligent robots. Hu, J.; Cheng, C. C.; Liu, W. H. // Proceedings of the Institution of Mechanical Engineers -- Part I;Mar2005, Vol. 219 Issue 2, p133 

    For intelligent robots to interact with people, an efficient human-robot communication interface is very important (e.g. voice command). However, recognizing voice command or speech represents only part of speech communication. The physics of speech signals includes other information, such as...

  • Left brain codifies the noise.  // Noise & Vibration Worldwide;Dec2007, Vol. 38 Issue 11, p23 

    The article provides information concerning the exposure of human beings on many different sounds from multiple sources at the same time in the U.S. The author implies that the noisy signals interact and compete with each other when they are being processed by the brain, a process called...

  • Compression and Analysis of Image using High Resolution Grid and Rice Encoding. Jain, Vaibhav; Jain, Nitin; Patidar, L.C. // International Journal of Computer Applications;Jan2012, Vol. 38, p47 

    In this paper we have discussed compression and analysis of image using high resolution grid and SPIHT encoding technique. Firstly the original image is converted in to low resolution (less size) image, then quantization and SPIHT encoding, techniques are applied to compress the image. To...

  • The effect of a trailing shield for perpendicular write heads. van der Heijden, P.; Bonhôte, C.; Carey, K.; Le, Q.; Li, J.; MacDonald, S.; Nguyen, H.; Nix, L.; Robertson, N.; Smith, N.; Tsang, C.; Williams, M. // Journal of Applied Physics;4/15/2006, Vol. 99 Issue 8, p08S304 

    The effect of a magnetic trailing shield located in close proximity of the pole tip for a perpendicular write head has been studied in a perpendicular recording system. For a 150 nm wide write pole, the write field gradient is improved yielding a 40% decrease in jitter and 2.2 dB increase in the...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics