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Title: Enhanced Nanoparticle Size Control by Extending LaMer’s Mechanism

Abstract

The synthesis of well-defined nanoparticle materials has been an area of intense investigation, but size control in nanoparticle syntheses is largely empirical. Here, we introduce a general method for fine size control in the synthesis of nanoparticles by establishing steady state growth conditions through the continuous, controlled addition of precursor, leading to a uniform rate of particle growth. This approach, which we term the “extended LaMer mechanism” allows for reproducibility in particle size from batch to batch as well as the ability to predict nanoparticle size by monitoring the early stages of growth. We have demonstrated this method by applying it to a challenging synthetic system: magnetite nanoparticles. To facilitate this reaction, we have developed a reproducible method for synthesizing an iron oleate precursor that can be used without purification. As a result, we then show how such fine size control affects the performance of magnetite nanoparticles in magnetic hyperthermia.

Authors:
 [1];  [1];  [1];  [1];  [1];  [2];  [1];  [1];  [1];  [3];  [4];  [5];  [1]
  1. Sandia National Laboratories, Albuquerque, New Mexico 87185, United States
  2. Senior Scientific LLC, Albuquerque, New Mexico 87106, United States
  3. Department of Chemical Engineering, University of Florida, Gainesville, Florida 32611, United States
  4. J. Crayton Pruitt Family Department of Biomedical Engineering, University of Florida, Gainesville, Florida 32611, United States
  5. Department of Chemical Engineering, University of Florida, Gainesville, Florida 32611, United States, J. Crayton Pruitt Family Department of Biomedical Engineering, University of Florida, Gainesville, Florida 32611, United States
Publication Date:
Research Org.:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
OSTI Identifier:
1212335
Alternate Identifier(s):
OSTI ID: 1214817; OSTI ID: 1235309
Report Number(s):
SAND-2015-7404J
Journal ID: ISSN 0897-4756
Grant/Contract Number:  
AC04-94AL85000
Resource Type:
Published Article
Journal Name:
Chemistry of Materials
Additional Journal Information:
Journal Name: Chemistry of Materials Journal Volume: 27 Journal Issue: 17; Journal ID: ISSN 0897-4756
Publisher:
American Chemical Society
Country of Publication:
United States
Language:
English
Subject:
77 NANOSCIENCE AND NANOTECHNOLOGY; 36 MATERIALS SCIENCE

Citation Formats

Vreeland, Erika C., Watt, John, Schober, Gretchen B., Hance, Bradley G., Austin, Mariah J., Price, Andrew D., Fellows, Benjamin D., Monson, Todd C., Hudak, Nicholas S., Maldonado-Camargo, Lorena, Bohorquez, Ana C., Rinaldi, Carlos, and Huber, Dale L. Enhanced Nanoparticle Size Control by Extending LaMer’s Mechanism. United States: N. p., 2015. Web. doi:10.1021/acs.chemmater.5b02510.
Vreeland, Erika C., Watt, John, Schober, Gretchen B., Hance, Bradley G., Austin, Mariah J., Price, Andrew D., Fellows, Benjamin D., Monson, Todd C., Hudak, Nicholas S., Maldonado-Camargo, Lorena, Bohorquez, Ana C., Rinaldi, Carlos, & Huber, Dale L. Enhanced Nanoparticle Size Control by Extending LaMer’s Mechanism. United States. https://doi.org/10.1021/acs.chemmater.5b02510
Vreeland, Erika C., Watt, John, Schober, Gretchen B., Hance, Bradley G., Austin, Mariah J., Price, Andrew D., Fellows, Benjamin D., Monson, Todd C., Hudak, Nicholas S., Maldonado-Camargo, Lorena, Bohorquez, Ana C., Rinaldi, Carlos, and Huber, Dale L. Fri . "Enhanced Nanoparticle Size Control by Extending LaMer’s Mechanism". United States. https://doi.org/10.1021/acs.chemmater.5b02510.
@article{osti_1212335,
title = {Enhanced Nanoparticle Size Control by Extending LaMer’s Mechanism},
author = {Vreeland, Erika C. and Watt, John and Schober, Gretchen B. and Hance, Bradley G. and Austin, Mariah J. and Price, Andrew D. and Fellows, Benjamin D. and Monson, Todd C. and Hudak, Nicholas S. and Maldonado-Camargo, Lorena and Bohorquez, Ana C. and Rinaldi, Carlos and Huber, Dale L.},
abstractNote = {The synthesis of well-defined nanoparticle materials has been an area of intense investigation, but size control in nanoparticle syntheses is largely empirical. Here, we introduce a general method for fine size control in the synthesis of nanoparticles by establishing steady state growth conditions through the continuous, controlled addition of precursor, leading to a uniform rate of particle growth. This approach, which we term the “extended LaMer mechanism” allows for reproducibility in particle size from batch to batch as well as the ability to predict nanoparticle size by monitoring the early stages of growth. We have demonstrated this method by applying it to a challenging synthetic system: magnetite nanoparticles. To facilitate this reaction, we have developed a reproducible method for synthesizing an iron oleate precursor that can be used without purification. As a result, we then show how such fine size control affects the performance of magnetite nanoparticles in magnetic hyperthermia.},
doi = {10.1021/acs.chemmater.5b02510},
journal = {Chemistry of Materials},
number = 17,
volume = 27,
place = {United States},
year = {Fri Aug 21 00:00:00 EDT 2015},
month = {Fri Aug 21 00:00:00 EDT 2015}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
https://doi.org/10.1021/acs.chemmater.5b02510

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Cited by: 154 works
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