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Engineering noble-metal nanoparticle...

Rycenga, Matthew.

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Engineering noble-metal nanoparticles for sensing and imaging with surface-enhanced Raman scattering.

Record Type:	Language materials, printed : Monograph/item
Title/Author:	Engineering noble-metal nanoparticles for sensing and imaging with surface-enhanced Raman scattering./
Author:	Rycenga, Matthew.
Description:	175 p.
Notes:	Source: Dissertation Abstracts International, Volume: 72-05, Section: B, page: .
Contained By:	Dissertation Abstracts International72-05B.
Subject:	Engineering, Biomedical. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3443910
ISBN:	9781124505183

Engineering noble-metal nanoparticles for sensing and imaging with surface-enhanced Raman scattering.
Rycenga, Matthew.

Engineering noble-metal nanoparticles for sensing and imaging with surface-enhanced Raman scattering. - 175 p.

Source: Dissertation Abstracts International, Volume: 72-05, Section: B, page: .

Thesis (Ph.D.)--Washington University in St. Louis, 2011.

This research investigated the surface-enhanced Raman scattering (SERS) from Ag and Au nanoparticles with an aim to better understand the SERS mechanism and to implement this technique for single-molecule detection and imaging. In addition, SERS was used as a sensitive probe to study molecules confined to a nanoparticle's surface.

ISBN: 9781124505183Subjects--Topical Terms:

1017684
Engineering, Biomedical.

Engineering noble-metal nanoparticles for sensing and imaging with surface-enhanced Raman scattering.
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035 $a (UMI)AAI3443910
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100 1 $a Rycenga, Matthew. $3 1672731
245 1 0 $a Engineering noble-metal nanoparticles for sensing and imaging with surface-enhanced Raman scattering.
300 $a 175 p.
500 $a Source: Dissertation Abstracts International, Volume: 72-05, Section: B, page: .
500 $a Adviser: Younan Xia.
502 $a Thesis (Ph.D.)--Washington University in St. Louis, 2011.
520 $a This research investigated the surface-enhanced Raman scattering (SERS) from Ag and Au nanoparticles with an aim to better understand the SERS mechanism and to implement this technique for single-molecule detection and imaging. In addition, SERS was used as a sensitive probe to study molecules confined to a nanoparticle's surface.
520 $a The first part of this work focused on measuring the SERS from different Ag and Au nanoparticles and determining how their structural and physical properties affect SERS. The effects of shape, size, and Au-Ag composition on SERS are determined using Ag nanocubes, Ag nanospheres, and Au-based nanocages. I also demonstrate several techniques used to study the SERS of single nanoparticles, one at a time, which has provided significant insight into the SERS effect. I then discuss the development of a new and simple way to create large SERS enhancements by taking advantage of the supporting substrate of a nanoparticle. In this technique, simply depositing a single Ag nanocube on a metal substrate can increase its SERS enhancements to levels capable of single-molecule detection.
520 $a In the second part of this work I used SERS as a molecular probe to understand how glucose molecules interact at a nanocube's surface, and as an optical thermometer to quantify the temperature change at the surface of a Au-based nanocage during the photothermal effect. The nanoparticles were coated with highly ordered self-assembled monolayers (SAMs), and then SERS was used to determine the structural and conformational changes in the SAMs as a result of perturbations from the environment. This allowed me to use SERS to directly probe the molecules on the nanoparticle's surface.
520 $a In the final part of this work, I used nanocubes and nanospheres in SERS imaging. The resolution, sensitivity, and penetration depth are determined for our Raman microprobe system. In addition, phantoms are used to generate SERS images of threedimensional microstructures.
590 $a School code: 0252.
650 4 $a Engineering, Biomedical. $3 1017684
650 4 $a Engineering, Chemical. $3 1018531
650 4 $a Remote Sensing. $3 1018559
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710 2 $a Washington University in St. Louis. $b Biomedical Engineering. $3 1669544
773 0 $t Dissertation Abstracts International $g 72-05B.
790 1 0 $a Xia, Younan, $e advisor
790 1 0 $a Chen, Da-Ren $e committee member
790 1 0 $a Elbert, Donald $e committee member
790 1 0 $a Loomis, Ricahard $e committee member
790 1 0 $a Raman, Barani $e committee member
790 1 0 $a Wang, Lihong $e committee member
790 $a 0252
791 $a Ph.D.
792 $a 2011
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3443910