Programmed assembly of metallodielectric patchy particles in external AC electric fields

被引:126
作者
Gangwal, Sumit [1 ]
Pawar, Amar [2 ]
Kretzschmar, Ilona [2 ]
Velev, Orlin D. [1 ]
机构
[1] N Carolina State Univ, Dept Chem & Biomol Engn, Raleigh, NC 27695 USA
[2] CUNY City Coll, Dept Chem Engn, New York, NY 10031 USA
基金
美国国家科学基金会;
关键词
NANOPARTICLE SUSPENSIONS; FLUIDS; DEPOSITION; CRYSTALS; CELLS;
D O I
10.1039/b925713f
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
We present unusual microstructures formed by patchy metallodielectric particles under high frequency alternating current (AC) electric fields. These particles assemble into two-directional percolated networks and lattices of unusual symmetry by interactions pre-programmed by their patch size and orientation. Electrostatic simulation results indicate that the assembly pattern of the patchy particles is guided by quadrupolar and multipolar interactions.
引用
收藏
页码:1413 / 1418
页数:6
相关论文
共 33 条
[1]   Electric field-assisted formation of percolated silver nanolayers inside glass [J].
Abdolvand, A ;
Podlipensky, A ;
Seifert, G ;
Graener, H ;
Deparis, O ;
Kazansky, PG .
OPTICS EXPRESS, 2005, 13 (04) :1266-1274
[2]   Percolative phenomena in lecithin reverse micelles: the role of water [J].
Aliotta, F ;
Fontanella, ME ;
Pieruccini, M ;
Salvato, G ;
Trusso, S ;
Vasi, C ;
Lechner, RE .
COLLOID AND POLYMER SCIENCE, 2002, 280 (02) :193-202
[3]   MECHANISM OF FORMATION OF 2-DIMENSIONAL CRYSTALS FROM LATEX-PARTICLES ON SUBSTRATES [J].
DENKOV, ND ;
VELEV, OD ;
KRALCHEVSKY, PA ;
IVANOV, IB ;
YOSHIMURA, H ;
NAGAYAMA, K .
LANGMUIR, 1992, 8 (12) :3183-3190
[4]   Continuous convective assembling of fine particles into two-dimensional arrays on solid surfaces [J].
Dimitrov, AS ;
Nagayama, K .
LANGMUIR, 1996, 12 (05) :1303-1311
[5]   LOW-FREQUENCY ELECTRIC-FIELD INDUCED CHANGES IN SHAPE AND MOTILITY OF AMEBAS [J].
FRIEND, AW ;
FINCH, ED ;
SCHWAN, HP .
SCIENCE, 1975, 187 (4174) :357-359
[6]   Induced-charge electrophoresis of metallodielectric particles [J].
Gangwal, Sumit ;
Cayre, Olivier J. ;
Bazant, Martin Z. ;
Velev, Orlin D. .
PHYSICAL REVIEW LETTERS, 2008, 100 (05)
[7]   Dielectrophoretic Assembly of Metallodielectric Janus Particles in AC Electric Fields [J].
Gangwal, Sumit ;
Cayre, Olivier J. ;
Velev, Orlin D. .
LANGMUIR, 2008, 24 (23) :13312-13320
[8]   ELECTRORHEOLOGICAL FLUIDS AS COLLOIDAL SUSPENSIONS [J].
GAST, AP ;
ZUKOSKI, CF .
ADVANCES IN COLLOID AND INTERFACE SCIENCE, 1989, 30 (3-4) :153-202
[9]   Transverse dipolar chaining in binary suspensions induced by rf fields [J].
Giner, V ;
Sancho, M ;
Lee, RS ;
Martínez, G ;
Pethig, R .
JOURNAL OF PHYSICS D-APPLIED PHYSICS, 1999, 32 (10) :1182-1186
[10]   Anisotropy of building blocks and their assembly into complex structures [J].
Glotzer, Sharon C. ;
Solomon, Michael J. .
NATURE MATERIALS, 2007, 6 (08) :557-562