PMID- 31157356
OWN - NLM
STAT- PubMed-not-MEDLINE
LR  - 20190725
IS  - 1744-6848 (Electronic)
IS  - 1744-683X (Linking)
VI  - 15
IP  - 27
DP  - 2019 Jul 10
TI  - Monodisperse micelles composed of poly(ethylene glycol) attached surfactants: 
      platonic nature in a macromolecular aggregate.
PG  - 5371-5374
LID - 10.1039/c9sm00943d [doi]
AB  - Among the many studies on micelles, dating back more than 100 years, we first 
      found a series of monodisperse micelles: spherical micelles made from 
      calix[4]arene surfactants exhibited monodispersity in aggregation number (Nagg) 
      with values of 4, 6, 8, 12, and 20. We named these Platonic micelles because 
      these values coincided with the face numbers of the Platonic solids. The 
      preferred Nagg values were explained in relation to the mathematical Tammes 
      problem: how to obtain the best coverage of a sphere surface with multiple 
      identical circles. In this paper, we synthesized poly(ethylene glycol)-attached 
      surfactants and carried out small-angle X-ray scattering (SAXS) and analytical 
      ultracentrifugation (AUC) to determine the Nagg. We found that these polymeric 
      surfactants also formed monodispersed micelles and Nagg discontinuously increased 
      from 20 to 24, and then 32 with increasing the alkyl carbon numbers from 9 to 11 
      continuously. The determined Nagg was greater than 20 and the Platonic solid 
      numbers. We assumed that the preferred Nagg values could be explained in relation 
      to the Tammes problem as well.
FAU - Lee, Ji Ha
AU  - Lee JH
AUID- ORCID: 0000-0002-4456-0128
AD  - Department of Chemistry and Biochemistry, University of Kitakyushu, 1-1 Hibikino, 
      Kitakyushu, Fukuoka 808-0135, Japan. sakurai@kitakyu-u.ac.jp.
FAU - Matsumoto, Hayata
AU  - Matsumoto H
AD  - Department of Chemistry and Biochemistry, University of Kitakyushu, 1-1 Hibikino, 
      Kitakyushu, Fukuoka 808-0135, Japan. sakurai@kitakyu-u.ac.jp.
FAU - Fujii, Shota
AU  - Fujii S
AUID- ORCID: 0000-0002-6594-5211
AD  - Department of Chemistry and Biochemistry, University of Kitakyushu, 1-1 Hibikino, 
      Kitakyushu, Fukuoka 808-0135, Japan. sakurai@kitakyu-u.ac.jp.
FAU - Takahashi, Rintaro
AU  - Takahashi R
AUID- ORCID: 0000-0003-2168-9436
AD  - Department of Chemistry and Biochemistry, University of Kitakyushu, 1-1 Hibikino, 
      Kitakyushu, Fukuoka 808-0135, Japan. sakurai@kitakyu-u.ac.jp.
FAU - Sakurai, Kazuo
AU  - Sakurai K
AUID- ORCID: 0000-0002-9737-0061
AD  - Department of Chemistry and Biochemistry, University of Kitakyushu, 1-1 Hibikino, 
      Kitakyushu, Fukuoka 808-0135, Japan. sakurai@kitakyu-u.ac.jp.
LA  - eng
PT  - Journal Article
PL  - England
TA  - Soft Matter
JT  - Soft matter
JID - 101295070
EDAT- 2019/06/04 06:00
MHDA- 2019/06/04 06:01
CRDT- 2019/06/04 06:00
PHST- 2019/06/04 06:00 [pubmed]
PHST- 2019/06/04 06:01 [medline]
PHST- 2019/06/04 06:00 [entrez]
AID - 10.1039/c9sm00943d [doi]
PST - ppublish
SO  - Soft Matter. 2019 Jul 10;15(27):5371-5374. doi: 10.1039/c9sm00943d.