Size selection during crystallization of oppositely charged nanoparticles.
Opposites attract (selectively): Oppositely charged nanoparticles characterized by different size distributions form 3D supracrystals (see figure) only if the distributions overlap. Crystal quality decreases rapidly with decreasing degree of overlap, and, irrespective of the ratio of particle diameters/charges, no crystals are observed for non-overlapping distributions.
Kowalczyk
Bartlomiej
B
Department of Chemical Engineering, Northwestern University, 2145 Sheridan Rd., Evanston, IL 60208, USA.
Kalsin
Alexander M
AM
Orlik
Rafal
R
Bishop
Kyle J M
KJ
Patashinskii
Alexander Z
AZ
Mitus
Antoni
A
Grzybowski
Bartosz A
BA
D000465:Algorithms; D003460:Crystallization; D004563:Electrochemistry; D005227:Fatty Acids / Q000737:chemistry; D006046:Gold / Q000737:chemistry*; D008958:Models, Molecular; D015394:Molecular Structure; D053758:Nanoparticles / Q000737:chemistry* / Q000648:ultrastructure; D000644:Quaternary Ammonium Compounds / Q000737:chemistry*; D012834:Silver / Q000737:chemistry*; D013438:Sulfhydryl Compounds / Q000737:chemistry*
C505222:11-mercaptoundecanoic acid; D005227:Fatty Acids; C538982:N,N,N-trimethyl(11-mercaptoundecyl)ammonium chloride; D000644:Quaternary Ammonium Compounds; D013438:Sulfhydryl Compounds; D012834:Silver; D006046:Gold