Motion of a Janus particle very near a wall

This article describes the simulated Brownian motion of a sphere comprising hemispheres of unequal zeta potential (i.e., “Janus” particle) very near a wall. The simulation tool was developed and used to assist in the methodology development for applying Total Internal Reflection Microscopy (TIRM) to...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:The Journal of chemical physics 2017-12, Vol.147 (22), p.224906-224906
Hauptverfasser: Rashidi, Aidin, Wirth, Christopher L.
Format: Artikel
Sprache:eng
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
container_end_page 224906
container_issue 22
container_start_page 224906
container_title The Journal of chemical physics
container_volume 147
creator Rashidi, Aidin
Wirth, Christopher L.
description This article describes the simulated Brownian motion of a sphere comprising hemispheres of unequal zeta potential (i.e., “Janus” particle) very near a wall. The simulation tool was developed and used to assist in the methodology development for applying Total Internal Reflection Microscopy (TIRM) to anisotropic particles. Simulations of the trajectory of a Janus sphere with cap density matching that of the base particle very near a boundary were used to construct 3D potential energy landscapes that were subsequently used to infer particle and solution properties, as would be done in a TIRM measurement. Results showed that the potential energy landscape of a Janus sphere has a transition region at the location of the boundary between the two Janus halves, which depended on the relative zeta potential magnitude. The potential energy landscape was fit to accurately obtain the zeta potential of each hemisphere, particle size, minimum potential energy position and electrolyte concentration, or Debye length. We also determined the appropriate orientation bin size and regimes over which the potential energy landscape should be fit to obtain system properties. Our simulations showed that an experiment may require more than 106 observations to obtain a suitable potential energy landscape as a consequence of the multivariable nature of observations for an anisotropic particle. These results illustrate important considerations for conducting TIRM for anisotropic particles.
doi_str_mv 10.1063/1.4994843
format Article
fullrecord <record><control><sourceid>proquest_scita</sourceid><recordid>TN_cdi_scitation_primary_10_1063_1_4994843</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>1977784365</sourcerecordid><originalsourceid>FETCH-LOGICAL-c320t-7ec02e1dbd02ae04795a0c82b897d94ea2d9f06b33b197758c33de1777b4deaf3</originalsourceid><addsrcrecordid>eNp9kMlOwzAQQC0EoqVw4AdQjixKGS-x42NVsaqIC5wtx55IQWlS7ATUvydRC0dOc5g3T5pHyDmFOQXJb-lcaC1ywQ_IlEKuUyU1HJIpAKOpliAn5CTGDwCgioljMmGaCQlZNiU3L21XtU3SlolNnm3Tx2RjQ1e5GpMvDNukQRuG1bet61NyVNo64tl-zsj7_d3b8jFdvT48LRer1HEGXarQAUPqCw_MIgilMwsuZ0WuldcCLfO6BFlwXlCtVJY7zj1SpVQhPNqSz8jlzrsJ7WePsTPrKjqsa9tg20czXqnhW5kN6NUOdaGNMWBpNqFa27A1FMzYxlCzbzOwF3ttX6zR_5G_MQbgegdEV3V2zPKP7Qfe0mmL</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>1977784365</pqid></control><display><type>article</type><title>Motion of a Janus particle very near a wall</title><source>AIP Journals Complete</source><source>Alma/SFX Local Collection</source><creator>Rashidi, Aidin ; Wirth, Christopher L.</creator><creatorcontrib>Rashidi, Aidin ; Wirth, Christopher L.</creatorcontrib><description>This article describes the simulated Brownian motion of a sphere comprising hemispheres of unequal zeta potential (i.e., “Janus” particle) very near a wall. The simulation tool was developed and used to assist in the methodology development for applying Total Internal Reflection Microscopy (TIRM) to anisotropic particles. Simulations of the trajectory of a Janus sphere with cap density matching that of the base particle very near a boundary were used to construct 3D potential energy landscapes that were subsequently used to infer particle and solution properties, as would be done in a TIRM measurement. Results showed that the potential energy landscape of a Janus sphere has a transition region at the location of the boundary between the two Janus halves, which depended on the relative zeta potential magnitude. The potential energy landscape was fit to accurately obtain the zeta potential of each hemisphere, particle size, minimum potential energy position and electrolyte concentration, or Debye length. We also determined the appropriate orientation bin size and regimes over which the potential energy landscape should be fit to obtain system properties. Our simulations showed that an experiment may require more than 106 observations to obtain a suitable potential energy landscape as a consequence of the multivariable nature of observations for an anisotropic particle. These results illustrate important considerations for conducting TIRM for anisotropic particles.</description><identifier>ISSN: 0021-9606</identifier><identifier>EISSN: 1089-7690</identifier><identifier>DOI: 10.1063/1.4994843</identifier><identifier>PMID: 29246055</identifier><identifier>CODEN: JCPSA6</identifier><language>eng</language><publisher>United States</publisher><ispartof>The Journal of chemical physics, 2017-12, Vol.147 (22), p.224906-224906</ispartof><rights>Author(s)</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c320t-7ec02e1dbd02ae04795a0c82b897d94ea2d9f06b33b197758c33de1777b4deaf3</citedby><cites>FETCH-LOGICAL-c320t-7ec02e1dbd02ae04795a0c82b897d94ea2d9f06b33b197758c33de1777b4deaf3</cites><orcidid>0000-0001-6130-5471 ; 0000000161305471</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://pubs.aip.org/jcp/article-lookup/doi/10.1063/1.4994843$$EHTML$$P50$$Gscitation$$H</linktohtml><link.rule.ids>314,776,780,790,4498,27901,27902,76127</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/29246055$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Rashidi, Aidin</creatorcontrib><creatorcontrib>Wirth, Christopher L.</creatorcontrib><title>Motion of a Janus particle very near a wall</title><title>The Journal of chemical physics</title><addtitle>J Chem Phys</addtitle><description>This article describes the simulated Brownian motion of a sphere comprising hemispheres of unequal zeta potential (i.e., “Janus” particle) very near a wall. The simulation tool was developed and used to assist in the methodology development for applying Total Internal Reflection Microscopy (TIRM) to anisotropic particles. Simulations of the trajectory of a Janus sphere with cap density matching that of the base particle very near a boundary were used to construct 3D potential energy landscapes that were subsequently used to infer particle and solution properties, as would be done in a TIRM measurement. Results showed that the potential energy landscape of a Janus sphere has a transition region at the location of the boundary between the two Janus halves, which depended on the relative zeta potential magnitude. The potential energy landscape was fit to accurately obtain the zeta potential of each hemisphere, particle size, minimum potential energy position and electrolyte concentration, or Debye length. We also determined the appropriate orientation bin size and regimes over which the potential energy landscape should be fit to obtain system properties. Our simulations showed that an experiment may require more than 106 observations to obtain a suitable potential energy landscape as a consequence of the multivariable nature of observations for an anisotropic particle. These results illustrate important considerations for conducting TIRM for anisotropic particles.</description><issn>0021-9606</issn><issn>1089-7690</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2017</creationdate><recordtype>article</recordtype><recordid>eNp9kMlOwzAQQC0EoqVw4AdQjixKGS-x42NVsaqIC5wtx55IQWlS7ATUvydRC0dOc5g3T5pHyDmFOQXJb-lcaC1ywQ_IlEKuUyU1HJIpAKOpliAn5CTGDwCgioljMmGaCQlZNiU3L21XtU3SlolNnm3Tx2RjQ1e5GpMvDNukQRuG1bet61NyVNo64tl-zsj7_d3b8jFdvT48LRer1HEGXarQAUPqCw_MIgilMwsuZ0WuldcCLfO6BFlwXlCtVJY7zj1SpVQhPNqSz8jlzrsJ7WePsTPrKjqsa9tg20czXqnhW5kN6NUOdaGNMWBpNqFa27A1FMzYxlCzbzOwF3ttX6zR_5G_MQbgegdEV3V2zPKP7Qfe0mmL</recordid><startdate>20171214</startdate><enddate>20171214</enddate><creator>Rashidi, Aidin</creator><creator>Wirth, Christopher L.</creator><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope><orcidid>https://orcid.org/0000-0001-6130-5471</orcidid><orcidid>https://orcid.org/0000000161305471</orcidid></search><sort><creationdate>20171214</creationdate><title>Motion of a Janus particle very near a wall</title><author>Rashidi, Aidin ; Wirth, Christopher L.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c320t-7ec02e1dbd02ae04795a0c82b897d94ea2d9f06b33b197758c33de1777b4deaf3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2017</creationdate><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Rashidi, Aidin</creatorcontrib><creatorcontrib>Wirth, Christopher L.</creatorcontrib><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><jtitle>The Journal of chemical physics</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Rashidi, Aidin</au><au>Wirth, Christopher L.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Motion of a Janus particle very near a wall</atitle><jtitle>The Journal of chemical physics</jtitle><addtitle>J Chem Phys</addtitle><date>2017-12-14</date><risdate>2017</risdate><volume>147</volume><issue>22</issue><spage>224906</spage><epage>224906</epage><pages>224906-224906</pages><issn>0021-9606</issn><eissn>1089-7690</eissn><coden>JCPSA6</coden><abstract>This article describes the simulated Brownian motion of a sphere comprising hemispheres of unequal zeta potential (i.e., “Janus” particle) very near a wall. The simulation tool was developed and used to assist in the methodology development for applying Total Internal Reflection Microscopy (TIRM) to anisotropic particles. Simulations of the trajectory of a Janus sphere with cap density matching that of the base particle very near a boundary were used to construct 3D potential energy landscapes that were subsequently used to infer particle and solution properties, as would be done in a TIRM measurement. Results showed that the potential energy landscape of a Janus sphere has a transition region at the location of the boundary between the two Janus halves, which depended on the relative zeta potential magnitude. The potential energy landscape was fit to accurately obtain the zeta potential of each hemisphere, particle size, minimum potential energy position and electrolyte concentration, or Debye length. We also determined the appropriate orientation bin size and regimes over which the potential energy landscape should be fit to obtain system properties. Our simulations showed that an experiment may require more than 106 observations to obtain a suitable potential energy landscape as a consequence of the multivariable nature of observations for an anisotropic particle. These results illustrate important considerations for conducting TIRM for anisotropic particles.</abstract><cop>United States</cop><pmid>29246055</pmid><doi>10.1063/1.4994843</doi><tpages>9</tpages><orcidid>https://orcid.org/0000-0001-6130-5471</orcidid><orcidid>https://orcid.org/0000000161305471</orcidid></addata></record>
fulltext fulltext
identifier ISSN: 0021-9606
ispartof The Journal of chemical physics, 2017-12, Vol.147 (22), p.224906-224906
issn 0021-9606
1089-7690
language eng
recordid cdi_scitation_primary_10_1063_1_4994843
source AIP Journals Complete; Alma/SFX Local Collection
title Motion of a Janus particle very near a wall
url https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-01-31T23%3A22%3A28IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-proquest_scita&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Motion%20of%20a%20Janus%20particle%20very%20near%20a%20wall&rft.jtitle=The%20Journal%20of%20chemical%20physics&rft.au=Rashidi,%20Aidin&rft.date=2017-12-14&rft.volume=147&rft.issue=22&rft.spage=224906&rft.epage=224906&rft.pages=224906-224906&rft.issn=0021-9606&rft.eissn=1089-7690&rft.coden=JCPSA6&rft_id=info:doi/10.1063/1.4994843&rft_dat=%3Cproquest_scita%3E1977784365%3C/proquest_scita%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_pqid=1977784365&rft_id=info:pmid/29246055&rfr_iscdi=true