Literature DB >> 16689527

Determining the conformation of thiolated poly(ethylene glycol) on Au nanoshells by surface-enhanced Raman scattering spectroscopic assay.

Carly S Levin1, Sandra Whaley Bishnoi, Nathaniel K Grady, Naomi J Halas.   

Abstract

The packing density of thiolated poly(ethylene glycol) (PEG) adsorbates on Au nanoshells is determined by exploiting the surface-enhanced Raman scattering response of individual nanoshell substrates. By incorporating the linker molecule p-mercaptoaniline (pMA), the number of 2000 MW and 5000 MW PEG molecules on each nanoparticle is determined by interpolation of the Langmuir isotherm for pMA. We conclude that both PEG adsorbates maintain a compact "brush" rather than an extended "mushroom" configuration on nanoshell surfaces.

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Year:  2006        PMID： 16689527     DOI： 10.1021/ac060041z

Source DB:  PubMed          Journal:  Anal Chem        ISSN： 0003-2700            Impact factor:   6.986


  14 in total

1.  Quantifying the coverage density of poly(ethylene glycol) chains on the surface of gold nanostructures.

Authors:  Xiaohu Xia; Miaoxin Yang; Yucai Wang; Yiqun Zheng; Qingge Li; Jingyi Chen; Younan Xia
Journal:  ACS Nano       Date:  2011-12-19       Impact factor: 15.881

2.  Maximizing DNA loading on a range of gold nanoparticle sizes.

Authors:  Sarah J Hurst; Abigail K R Lytton-Jean; Chad A Mirkin
Journal:  Anal Chem       Date:  2006-12-15       Impact factor: 6.986

3.  Engineering chemically modified viruses for prostate cancer cell recognition.

Authors:  K Mohan; G A Weiss
Journal:  Mol Biosyst       Date:  2015-12

4.  Silver nanoplate contrast agents for in vivo molecular photoacoustic imaging.

Authors:  Kimberly A Homan; Michael Souza; Ryan Truby; Geoffrey P Luke; Christopher Green; Erika Vreeland; Stanislav Emelianov
Journal:  ACS Nano       Date:  2012-01-06       Impact factor: 15.881

Review 5.  Nanoparticle PEGylation for imaging and therapy.

Authors:  Jesse V Jokerst; Tatsiana Lobovkina; Richard N Zare; Sanjiv S Gambhir
Journal:  Nanomedicine (Lond)       Date:  2011-06       Impact factor: 5.307

6.  Zwitterionic Polymer Coatings Enhance Gold Nanoparticle Stability and Uptake in Various Biological Environments.

Authors:  Benjamin M King; Jennifer Fiegel
Journal:  AAPS J       Date:  2022-01-04       Impact factor: 4.009

7.  Effect of the poly(ethylene glycol) (PEG) density on the access and uptake of particles by antigen-presenting cells (APCs) after subcutaneous administration.

Authors:  Xi Zhan; Kenny K Tran; Hong Shen
Journal:  Mol Pharm       Date:  2012-11-20       Impact factor: 4.939

8.  Tension sensing nanoparticles for mechano-imaging at the living/nonliving interface.

Authors:  Yang Liu; Kevin Yehl; Yoshie Narui; Khalid Salaita
Journal:  J Am Chem Soc       Date:  2013-03-26       Impact factor: 15.419

9.  Limitations on the optical tunability of small diameter gold nanoshells.

Authors:  Michael R Rasch; Konstantin V Sokolov; Brian A Korgel
Journal:  Langmuir       Date:  2009-10-06       Impact factor: 3.882

10.  Observing metal-catalyzed chemical reactions in situ using surface-enhanced Raman spectroscopy on Pd-Au nanoshells.

Authors:  Kimberly N Heck; Benjamin G Janesko; Gustavo E Scuseria; Naomi J Halas; Michael S Wong
Journal:  J Am Chem Soc       Date:  2008-12-10       Impact factor: 15.419
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