---
_id: '20946'
abstract:
- lang: eng
  text: In the current work, we study the silver ion release potential and the water
    uptake through a SiOxCyHz-polymer which is grown from the precursor hexamethyldisiloxane
    (HMDSO) in radiofrequency (RF) plasma. These layers were deposited on top of two
    dimensional (2D) ensembles of silver nanoparticles (AgNPs) with nominal thickness
    of 2 nm on a 20 nm RF-sputtered polytetrafluoroethylene (PTFE) thin film. The
    composition of the plasma-polymerized HMDSO barriers was varied by changing the
    oxygen flow during the polymerization process and their thickness was varied as
    well. Morphology and optical properties of the nanocomposites were investigated
    using transmission electron microscopy (TEM) and UV-Visible spectroscopy (UV-Vis),
    respectively. The concentration of the silver ions released from the nanocomposites
    after immersion in water for several time intervals was measured using inductively
    coupled plasma mass spectrometry (ICP-MS). Contact angle analysis and electrochemical
    impedance spectroscopy (EIS) measurements were also performed and results show
    a strong dependence of the coatings properties and their water uptake on the oxygen
    content in the coating films and their thickness. Plasma polymerization with increasing
    the oxygen flow leads to the formation of more hydrophilic thin films with a higher
    Ag ion release potential. Increasing the thickness of the coatings reduced the
    amount of the released ions and the rate of the release process was slowed down.
    This indicates that by tailoring the structure and the thickness of the plasma-polymerized
    coating films, one can tune the silver ion release properties of Ag/polymer nanocomposites.
article_number: '2080'
author:
- first_name: N.
  full_name: Alissawi, N.
  last_name: Alissawi
- first_name: T.
  full_name: Peter, T.
  last_name: Peter
- first_name: T.
  full_name: Strunskus, T.
  last_name: Strunskus
- first_name: Christoph
  full_name: Ebbert, Christoph
  id: '7266'
  last_name: Ebbert
- first_name: Guido
  full_name: Grundmeier, Guido
  id: '194'
  last_name: Grundmeier
- first_name: F.
  full_name: Faupel, F.
  last_name: Faupel
citation:
  ama: Alissawi N, Peter T, Strunskus T, Ebbert C, Grundmeier G, Faupel F. Plasma-polymerized
    HMDSO coatings to adjust the silver ion release properties of Ag/polymer nanocomposites.
    <i>JOURNAL OF NANOPARTICLE RESEARCH</i>. 2013;15(11). doi:<a href="https://doi.org/10.1007/s11051-013-2080-9">10.1007/s11051-013-2080-9</a>
  apa: Alissawi, N., Peter, T., Strunskus, T., Ebbert, C., Grundmeier, G., &#38; Faupel,
    F. (2013). Plasma-polymerized HMDSO coatings to adjust the silver ion release
    properties of Ag/polymer nanocomposites. <i>JOURNAL OF NANOPARTICLE RESEARCH</i>,
    <i>15</i>(11). <a href="https://doi.org/10.1007/s11051-013-2080-9">https://doi.org/10.1007/s11051-013-2080-9</a>
  bibtex: '@article{Alissawi_Peter_Strunskus_Ebbert_Grundmeier_Faupel_2013, title={Plasma-polymerized
    HMDSO coatings to adjust the silver ion release properties of Ag/polymer nanocomposites},
    volume={15}, DOI={<a href="https://doi.org/10.1007/s11051-013-2080-9">10.1007/s11051-013-2080-9</a>},
    number={112080}, journal={JOURNAL OF NANOPARTICLE RESEARCH}, author={Alissawi,
    N. and Peter, T. and Strunskus, T. and Ebbert, Christoph and Grundmeier, Guido
    and Faupel, F.}, year={2013} }'
  chicago: Alissawi, N., T. Peter, T. Strunskus, Christoph Ebbert, Guido Grundmeier,
    and F. Faupel. “Plasma-Polymerized HMDSO Coatings to Adjust the Silver Ion Release
    Properties of Ag/Polymer Nanocomposites.” <i>JOURNAL OF NANOPARTICLE RESEARCH</i>
    15, no. 11 (2013). <a href="https://doi.org/10.1007/s11051-013-2080-9">https://doi.org/10.1007/s11051-013-2080-9</a>.
  ieee: N. Alissawi, T. Peter, T. Strunskus, C. Ebbert, G. Grundmeier, and F. Faupel,
    “Plasma-polymerized HMDSO coatings to adjust the silver ion release properties
    of Ag/polymer nanocomposites,” <i>JOURNAL OF NANOPARTICLE RESEARCH</i>, vol. 15,
    no. 11, 2013.
  mla: Alissawi, N., et al. “Plasma-Polymerized HMDSO Coatings to Adjust the Silver
    Ion Release Properties of Ag/Polymer Nanocomposites.” <i>JOURNAL OF NANOPARTICLE
    RESEARCH</i>, vol. 15, no. 11, 2080, 2013, doi:<a href="https://doi.org/10.1007/s11051-013-2080-9">10.1007/s11051-013-2080-9</a>.
  short: N. Alissawi, T. Peter, T. Strunskus, C. Ebbert, G. Grundmeier, F. Faupel,
    JOURNAL OF NANOPARTICLE RESEARCH 15 (2013).
date_created: 2021-01-13T10:12:52Z
date_updated: 2022-01-06T06:54:41Z
department:
- _id: '35'
- _id: '302'
- _id: '321'
doi: 10.1007/s11051-013-2080-9
external_id:
  isi:
  - '000326054400001'
intvolume: '        15'
isi: '1'
issue: '11'
language:
- iso: eng
publication: JOURNAL OF NANOPARTICLE RESEARCH
publication_identifier:
  eissn:
  - 1572-896X
  issn:
  - 1388-0764
publication_status: published
quality_controlled: '1'
status: public
title: Plasma-polymerized HMDSO coatings to adjust the silver ion release properties
  of Ag/polymer nanocomposites
type: journal_article
user_id: '7266'
volume: 15
year: '2013'
...
---
_id: '26136'
abstract:
- lang: eng
  text: To improve the understanding of the poor dispersability of fumed silica nanoparticle
    agglomerates, the stability of highly defined agglomerated model particles was
    investigated. The high temperature synthesis conditions for fumed silica were
    simulated by tempering. Along with electron-microscopical analysis of the sintering
    necks, the interparticle forces were investigated by energy resolved fragmentation
    analysis based on low pressure impaction. At temperatures above 1,000 °C the fragmentability
    of the agglomerates rapidly decreased while the energy necessary for fragmentation
    increased. The development of sintering necks was observed for temperatures exceeding
    1,300 °C. Comparison of the experimental data with the fragmentation behaviour
    of a commercially produced fumed silica indicated solid state contacts (sintering
    necks) as being most numerous in the agglomerates resulting in limited fragmentability.
author:
- first_name: M.
  full_name: Seipenbusch, M.
  last_name: Seipenbusch
- first_name: S.
  full_name: Rothenbacher, S.
  last_name: Rothenbacher
- first_name: M.
  full_name: Kirchhoff, M.
  last_name: Kirchhoff
- first_name: Hans-Joachim
  full_name: Schmid, Hans-Joachim
  id: '464'
  last_name: Schmid
- first_name: G.
  full_name: Kasper, G.
  last_name: Kasper
- first_name: A. P.
  full_name: Weber, A. P.
  last_name: Weber
citation:
  ama: Seipenbusch M, Rothenbacher S, Kirchhoff M, Schmid H-J, Kasper G, Weber AP.
    Interparticle forces in silica nanoparticle agglomerates. <i>Journal of Nanoparticle
    Research</i>. 2010;12(6):2037-2044. doi:<a href="https://doi.org/10.1007/s11051-009-9760-5">10.1007/s11051-009-9760-5</a>
  apa: Seipenbusch, M., Rothenbacher, S., Kirchhoff, M., Schmid, H.-J., Kasper, G.,
    &#38; Weber, A. P. (2010). Interparticle forces in silica nanoparticle agglomerates.
    <i>Journal of Nanoparticle Research</i>, <i>12</i>(6), 2037–2044. <a href="https://doi.org/10.1007/s11051-009-9760-5">https://doi.org/10.1007/s11051-009-9760-5</a>
  bibtex: '@article{Seipenbusch_Rothenbacher_Kirchhoff_Schmid_Kasper_Weber_2010, title={Interparticle
    forces in silica nanoparticle agglomerates}, volume={12}, DOI={<a href="https://doi.org/10.1007/s11051-009-9760-5">10.1007/s11051-009-9760-5</a>},
    number={6}, journal={Journal of Nanoparticle Research}, author={Seipenbusch, M.
    and Rothenbacher, S. and Kirchhoff, M. and Schmid, Hans-Joachim and Kasper, G.
    and Weber, A. P.}, year={2010}, pages={2037–2044} }'
  chicago: 'Seipenbusch, M., S. Rothenbacher, M. Kirchhoff, Hans-Joachim Schmid, G.
    Kasper, and A. P. Weber. “Interparticle Forces in Silica Nanoparticle Agglomerates.”
    <i>Journal of Nanoparticle Research</i> 12, no. 6 (2010): 2037–44. <a href="https://doi.org/10.1007/s11051-009-9760-5">https://doi.org/10.1007/s11051-009-9760-5</a>.'
  ieee: 'M. Seipenbusch, S. Rothenbacher, M. Kirchhoff, H.-J. Schmid, G. Kasper, and
    A. P. Weber, “Interparticle forces in silica nanoparticle agglomerates,” <i>Journal
    of Nanoparticle Research</i>, vol. 12, no. 6, pp. 2037–2044, 2010, doi: <a href="https://doi.org/10.1007/s11051-009-9760-5">10.1007/s11051-009-9760-5</a>.'
  mla: Seipenbusch, M., et al. “Interparticle Forces in Silica Nanoparticle Agglomerates.”
    <i>Journal of Nanoparticle Research</i>, vol. 12, no. 6, 2010, pp. 2037–44, doi:<a
    href="https://doi.org/10.1007/s11051-009-9760-5">10.1007/s11051-009-9760-5</a>.
  short: M. Seipenbusch, S. Rothenbacher, M. Kirchhoff, H.-J. Schmid, G. Kasper, A.P.
    Weber, Journal of Nanoparticle Research 12 (2010) 2037–2044.
date_created: 2021-10-13T14:54:26Z
date_updated: 2022-01-06T06:57:16Z
doi: 10.1007/s11051-009-9760-5
intvolume: '        12'
issue: '6'
language:
- iso: eng
page: 2037-2044
publication: Journal of Nanoparticle Research
publication_identifier:
  issn:
  - 1388-0764
  - 1572-896X
publication_status: published
status: public
title: Interparticle forces in silica nanoparticle agglomerates
type: journal_article
user_id: '70093'
volume: 12
year: '2010'
...
---
_id: '26152'
abstract:
- lang: eng
  text: A model for simulation of the three-dimensional morphology of nano-structured
    aggregates formed by concurrent coagulation and sintering is presented. Diffusion
    controlled cluster–cluster aggregation is assumed to be the prevailing coagulation
    mechanism which is implemented using a Monte–Carlo algorithm. Sintering is modeled
    as a successive overlapping of spherical primary particles, which are allowed
    to grow as to preserve overall mass. Simulations are characterized by individual
    ratios τ of characteristic collision to fusion time. A number of resulting aggregate-structures
    is displayed and reveals structure formation by coagulation and sintering for
    different values of τ. These aggregates are described qualitatively and quantitatively
    by their mass fractal dimension Df and radius of gyration. The fractal dimension
    increases from 1.86 for pure aggregation to ≈ 2.75 for equal characteristic time
    scales. As sintering turns out to be more and more relevant, increasingly compact
    aggregates start to form and the radius of gyration decreases significantly. The
    simulation results clearly reveal a strong dependence of the fractal dimension
    on the kinetics of the concurrent coagulation and sintering processes. Considering
    appropriate values of Df in aerosol process simulations may therefore be important
    in many cases.
author:
- first_name: Hans-Joachim
  full_name: Schmid, Hans-Joachim
  id: '464'
  last_name: Schmid
- first_name: Saurabh
  full_name: Tejwani, Saurabh
  last_name: Tejwani
- first_name: Christian
  full_name: Artelt, Christian
  last_name: Artelt
- first_name: Wolfgang
  full_name: Peukert, Wolfgang
  last_name: Peukert
citation:
  ama: Schmid H-J, Tejwani S, Artelt C, Peukert W. Monte Carlo simulation of aggregate
    morphology for simultaneous coagulation and sintering. <i>Journal of Nanoparticle
    Research</i>. 2004;6(6):613-626. doi:<a href="https://doi.org/10.1007/s11051-004-2161-x">10.1007/s11051-004-2161-x</a>
  apa: Schmid, H.-J., Tejwani, S., Artelt, C., &#38; Peukert, W. (2004). Monte Carlo
    simulation of aggregate morphology for simultaneous coagulation and sintering.
    <i>Journal of Nanoparticle Research</i>, <i>6</i>(6), 613–626. <a href="https://doi.org/10.1007/s11051-004-2161-x">https://doi.org/10.1007/s11051-004-2161-x</a>
  bibtex: '@article{Schmid_Tejwani_Artelt_Peukert_2004, title={Monte Carlo simulation
    of aggregate morphology for simultaneous coagulation and sintering}, volume={6},
    DOI={<a href="https://doi.org/10.1007/s11051-004-2161-x">10.1007/s11051-004-2161-x</a>},
    number={6}, journal={Journal of Nanoparticle Research}, author={Schmid, Hans-Joachim
    and Tejwani, Saurabh and Artelt, Christian and Peukert, Wolfgang}, year={2004},
    pages={613–626} }'
  chicago: 'Schmid, Hans-Joachim, Saurabh Tejwani, Christian Artelt, and Wolfgang
    Peukert. “Monte Carlo Simulation of Aggregate Morphology for Simultaneous Coagulation
    and Sintering.” <i>Journal of Nanoparticle Research</i> 6, no. 6 (2004): 613–26.
    <a href="https://doi.org/10.1007/s11051-004-2161-x">https://doi.org/10.1007/s11051-004-2161-x</a>.'
  ieee: 'H.-J. Schmid, S. Tejwani, C. Artelt, and W. Peukert, “Monte Carlo simulation
    of aggregate morphology for simultaneous coagulation and sintering,” <i>Journal
    of Nanoparticle Research</i>, vol. 6, no. 6, pp. 613–626, 2004, doi: <a href="https://doi.org/10.1007/s11051-004-2161-x">10.1007/s11051-004-2161-x</a>.'
  mla: Schmid, Hans-Joachim, et al. “Monte Carlo Simulation of Aggregate Morphology
    for Simultaneous Coagulation and Sintering.” <i>Journal of Nanoparticle Research</i>,
    vol. 6, no. 6, 2004, pp. 613–26, doi:<a href="https://doi.org/10.1007/s11051-004-2161-x">10.1007/s11051-004-2161-x</a>.
  short: H.-J. Schmid, S. Tejwani, C. Artelt, W. Peukert, Journal of Nanoparticle
    Research 6 (2004) 613–626.
date_created: 2021-10-13T16:05:11Z
date_updated: 2022-01-06T06:57:17Z
doi: 10.1007/s11051-004-2161-x
intvolume: '         6'
issue: '6'
language:
- iso: eng
page: 613-626
publication: Journal of Nanoparticle Research
publication_identifier:
  issn:
  - 1388-0764
  - 1572-896X
publication_status: published
status: public
title: Monte Carlo simulation of aggregate morphology for simultaneous coagulation
  and sintering
type: journal_article
user_id: '70093'
volume: 6
year: '2004'
...