CoreSatellite Janus Nanomotors with pH-Responsive Multi-phoretic Propulsion
© 2020 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim..
We report coresatellite Janus mesoporous silica-Pt@Au (JMPA) nanomotors with pH-responsive multi-phoretic propulsion. The JMPA nanomotors first undergo self-diffusiophoretic propulsion in 3.0 % H2 O2 due to the isolation of the Au nanoparticles (AuNPs) from the PtNPs layer. Then the weak acidity of H2 O2 can trigger the disassembly and reassembly of the AuNPs, resulting in the Janus distribution of large AuNPs aggregates. Such reconstruction of JMPA leads to the contact between PtNPs and AuNPs aggregates, thus changing the propulsion mechanism to self-electrophoresis. The asymmetric and aggregated AuNPs also enable the generation of a thermal gradient under laser irradiation, which propels the JMPA nanomotors by self-thermophoresis. Such multi-phoretic propulsion offers considerable promise for developing advanced nanomachines with a stimuli-responsive switch of propulsion modes in biomedical applications.
Medienart: |
E-Artikel |
---|
Erscheinungsjahr: |
2020 |
---|---|
Erschienen: |
2020 |
Enthalten in: |
Zur Gesamtaufnahme - volume:59 |
---|---|
Enthalten in: |
Angewandte Chemie (International ed. in English) - 59(2020), 34 vom: 17. Aug., Seite 14368-14372 |
Sprache: |
Englisch |
---|
Beteiligte Personen: |
Xing, Yi [VerfasserIn] |
---|
Links: |
---|
Themen: |
Core-satellite nanoparticles |
---|
Anmerkungen: |
Date Completed 11.12.2020 Date Revised 14.12.2020 published: Print-Electronic Citation Status PubMed-not-MEDLINE |
---|
doi: |
10.1002/anie.202006421 |
---|
funding: |
|
---|---|
Förderinstitution / Projekttitel: |
|
PPN (Katalog-ID): |
NLM310862965 |
---|
LEADER | 01000naa a22002652 4500 | ||
---|---|---|---|
001 | NLM310862965 | ||
003 | DE-627 | ||
005 | 20231225141020.0 | ||
007 | cr uuu---uuuuu | ||
008 | 231225s2020 xx |||||o 00| ||eng c | ||
024 | 7 | |a 10.1002/anie.202006421 |2 doi | |
028 | 5 | 2 | |a pubmed24n1036.xml |
035 | |a (DE-627)NLM310862965 | ||
035 | |a (NLM)32506778 | ||
040 | |a DE-627 |b ger |c DE-627 |e rakwb | ||
041 | |a eng | ||
100 | 1 | |a Xing, Yi |e verfasserin |4 aut | |
245 | 1 | 4 | |a CoreSatellite Janus Nanomotors with pH-Responsive Multi-phoretic Propulsion |
264 | 1 | |c 2020 | |
336 | |a Text |b txt |2 rdacontent | ||
337 | |a ƒaComputermedien |b c |2 rdamedia | ||
338 | |a ƒa Online-Ressource |b cr |2 rdacarrier | ||
500 | |a Date Completed 11.12.2020 | ||
500 | |a Date Revised 14.12.2020 | ||
500 | |a published: Print-Electronic | ||
500 | |a Citation Status PubMed-not-MEDLINE | ||
520 | |a © 2020 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim. | ||
520 | |a We report coresatellite Janus mesoporous silica-Pt@Au (JMPA) nanomotors with pH-responsive multi-phoretic propulsion. The JMPA nanomotors first undergo self-diffusiophoretic propulsion in 3.0 % H2 O2 due to the isolation of the Au nanoparticles (AuNPs) from the PtNPs layer. Then the weak acidity of H2 O2 can trigger the disassembly and reassembly of the AuNPs, resulting in the Janus distribution of large AuNPs aggregates. Such reconstruction of JMPA leads to the contact between PtNPs and AuNPs aggregates, thus changing the propulsion mechanism to self-electrophoresis. The asymmetric and aggregated AuNPs also enable the generation of a thermal gradient under laser irradiation, which propels the JMPA nanomotors by self-thermophoresis. Such multi-phoretic propulsion offers considerable promise for developing advanced nanomachines with a stimuli-responsive switch of propulsion modes in biomedical applications | ||
650 | 4 | |a Journal Article | |
650 | 4 | |a Research Support, Non-U.S. Gov't | |
650 | 4 | |a core-satellite nanoparticles | |
650 | 4 | |a nanomotors | |
650 | 4 | |a pH response | |
650 | 4 | |a phoretic propulsion | |
650 | 4 | |a photothermal effect | |
700 | 1 | |a Zhou, Mengyun |e verfasserin |4 aut | |
700 | 1 | |a Xu, Tailin |e verfasserin |4 aut | |
700 | 1 | |a Tang, Songsong |e verfasserin |4 aut | |
700 | 1 | |a Fu, Yang |e verfasserin |4 aut | |
700 | 1 | |a Du, Xin |e verfasserin |4 aut | |
700 | 1 | |a Su, Lei |e verfasserin |4 aut | |
700 | 1 | |a Wen, Yongqiang |e verfasserin |4 aut | |
700 | 1 | |a Zhang, Xueji |e verfasserin |4 aut | |
700 | 1 | |a Ma, Tianyi |e verfasserin |4 aut | |
773 | 0 | 8 | |i Enthalten in |t Angewandte Chemie (International ed. in English) |d 1964 |g 59(2020), 34 vom: 17. Aug., Seite 14368-14372 |w (DE-627)NLM000105422 |x 1521-3773 |7 nnns |
773 | 1 | 8 | |g volume:59 |g year:2020 |g number:34 |g day:17 |g month:08 |g pages:14368-14372 |
856 | 4 | 0 | |u http://dx.doi.org/10.1002/anie.202006421 |3 Volltext |
912 | |a GBV_USEFLAG_A | ||
912 | |a GBV_NLM | ||
951 | |a AR | ||
952 | |d 59 |j 2020 |e 34 |b 17 |c 08 |h 14368-14372 |