@misc{electronic devices and methods using moleculary-bridged metal nanoparticles_2005, volume={6,888,665}, publisher={Washington, DC: U.S. Patent and Trademark Office}, year={2005} } @article{novak_nickerson_franzen_feldheim_2001, title={Purification of molecularly bridged metal nanoparticle arrays by centrifugation and size exclusion chromatography}, volume={73}, ISSN={["0003-2700"]}, DOI={10.1021/ac010812t}, abstractNote={Size exclusion chromatography and centrifugation separation protocols were developed and compared for isolating enriched fractions of phenylethynyl-bridged metal nanoparticle dimers and trimers from the monomeric particle starting material. Both methods enabled the isolation of enriched fractions of a desired array without causing significant sample aggregation or replacement of the phenylethynyl bridge. Solutions containing ca. 70% bridged gold dimers were obtained using either method. The further development of methods for separating discrete arrays of covalently bridged nanoparticle homo and hetero structures is expected to help advance our understanding of collective metal particle electronic structure-function relationships.}, number={23}, journal={ANALYTICAL CHEMISTRY}, author={Novak, JP and Nickerson, C and Franzen, S and Feldheim, DL}, year={2001}, month={Dec}, pages={5758–5761} } @article{novak_feldheim_2000, title={Assembly of phenylacetylene-bridged silver and gold nanoparticle arrays}, volume={122}, ISSN={["1520-5126"]}, DOI={10.1021/ja000477a}, abstractNote={ADVERTISEMENT RETURN TO ISSUEPREVCommunicationNEXTAssembly of Phenylacetylene-Bridged Silver and Gold Nanoparticle ArraysJames P. Novak and Daniel L. FeldheimView Author Information Department of Chemistry, North Carolina State University Raleigh, North Carolina 27695 Cite this: J. Am. Chem. Soc. 2000, 122, 16, 3979–3980Publication Date (Web):April 8, 2000Publication History Received8 February 2000Published online8 April 2000Published inissue 1 April 2000https://doi.org/10.1021/ja000477aCopyright © 2000 American Chemical SocietyRIGHTS & PERMISSIONSArticle Views2170Altmetric-Citations172LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InReddit Read OnlinePDF (110 KB) Get e-AlertsSUBJECTS:Gold,Metal nanoparticles,Nanoparticles,Oligomers,Silver Get e-Alerts}, number={16}, journal={JOURNAL OF THE AMERICAN CHEMICAL SOCIETY}, author={Novak, JP and Feldheim, DL}, year={2000}, month={Apr}, pages={3979–3980} } @article{mcconnell_novak_brousseau_fuierer_tenent_feldheim_2000, title={Electronic and optical properties of chemically modified metal nanoparticles and molecularly bridged nanoparticle arrays}, volume={104}, number={38}, journal={Journal of Physical Chemistry. B, Condensed Matter, Materials, Surfaces, Interfaces & Biophysical}, author={McConnell, W. P. and Novak, J. P. and Brousseau, L. C. and Fuierer, R. R. and Tenent, R. C. and Feldheim, D. L.}, year={2000}, pages={8925–8930} } @article{novak_brousseau_vance_johnson_lemon_hupp_feldheim_2000, title={Nonlinear optical properties of molecularly bridged gold nanoparticle arrays}, volume={122}, ISSN={["1520-5126"]}, DOI={10.1021/ja003129h}, abstractNote={Methods for assembling metal nanoparticles into symmetrically and spatially well-defined architectures are important because new properties often emerge from the particle aggregate that are distinctly different from the corresponding isolated nanoparticles. For example, collective nanoparticle behaviors are responsible for large surface-enhanced Raman signals1 and first hyperpolarizabilities2 and the familiar red-blue color change currently being exploited in a number of colorimetric assays.3 The success of many emerging nanoscale electronics technologies (e.g., singleelectron devices, quantum cellular automata4) also will depend largely on the ability to organize nanoparticles and optimize capacitive or dipole coupling in the resulting assembly. Collective nanocluster behaviors have traditionally been assessed using extended 2or 3-dimensional nanocluster arrays prepared by (i) salt-induced aggregation,2 (ii) Langmuir techniques,5 (iii) surface assembly,1 or (iv) crystallization.6 Vance and co-workers, for example, utilized hyper-Rayleigh scattering (HRS) to interrogate aqueous suspensions of 13 nm diameter gold particles.2 First hyperpolarizabilities (â) were found to surpass the best available molecular chromophores. Moreover, â increased more than 10-fold upon the addition of salt, likely due to the formation of non-centrosymmetric particle aggregates.7 However, the fact that salt-induced aggregation does not lead to a preferred symmetry precluded a detailed account of structure-optical function relationships. Methods for assembling gold and silver nanoparticle aggregates of well-defined symmetry and interparticle spacing have been developed previously.8 These protocols employ thiol-functionalized phenylacetylene (PA) “templates” 1-5 whose symmetries}, number={48}, journal={JOURNAL OF THE AMERICAN CHEMICAL SOCIETY}, author={Novak, JP and Brousseau, LC and Vance, FW and Johnson, RC and Lemon, BI and Hupp, JT and Feldheim, DL}, year={2000}, month={Dec}, pages={12029–12030} } @article{brousseau_novak_marinakos_feldheim_1999, title={Assembly of phenylacetylene-bridged gold nanocluster dimers and trimers}, volume={11}, ISSN={["0935-9648"]}, DOI={10.1002/(SICI)1521-4095(199904)11:6<447::AID-ADMA447>3.0.CO;2-I}, abstractNote={2- and 3-Dimensional crystalline arrangements of metal nanoparticles are of interest because of their unique optical and electronic behavior. Discrete assemblies of nanoclusters (e.g. dimers, trimers) studied in this paper allow the effects of local symmetry on collective particle properties to be studied. The distance and the medium between clusters is known to influence the optical absorption and electron transport. The use of phenylacetylene oligomers as ‘molecular wire’ linkers between the nanoparticles is demonstrated to allow well-defined, rigid arrays with a variety of geometries to be produced.}, number={6}, journal={ADVANCED MATERIALS}, author={Brousseau, LC and Novak, JP and Marinakos, SM and Feldheim, DL}, year={1999}, month={Apr}, pages={447-+} } @article{marinakos_novak_brousseau_house_edeki_feldhaus_feldheim_1999, title={Gold particles as templates for the synthesis of hollow polymer capsules. Control of capsule dimensions and guest encapsulation}, volume={121}, ISSN={["0002-7863"]}, DOI={10.1021/ja990945k}, abstractNote={A method for synthesizing hollow nanoscopic polypyrrole and poly(N-methylpyrrole) capsules is described. The method employs gold nanoparticles as templates for polymer nucleation and growth. Etching the gold leaves a structurally intact hollow polymer capsule with a shell thickness governed by polymerization time (ca. 5 to >100 nm) and a hollow core diameter dictated by the diameter of the template particle (ca. 5−200 nm). Transport rates of gold etchant through the polymer shell to the gold core were found to depend on the oxidation state of the polymer, those rates being a factor of 3 greater for the reduced form of the polymer. We show for the first time that not only is the particle a useful template material but also that it can be employed to deliver guest molecules into the capsule core. For example, ligands attached to the gold surface prior to poly(N-methylpyrrole) formation remained trapped inside the hollow capsule following polymer formation and gold etching.}, number={37}, journal={JOURNAL OF THE AMERICAN CHEMICAL SOCIETY}, author={Marinakos, SM and Novak, JP and Brousseau, LC and House, AB and Edeki, EM and Feldhaus, JC and Feldheim, DL}, year={1999}, month={Sep}, pages={8518–8522} }