Self-assembly with varying hydrophobic centers: Synthesis of red blood cell-like basic magnesium carbonate microspheres--颗粒学报PARTICUOLOGY

Ma, X., Ning, G., Chen, B., Qi, C., Lan, X., & Gao, J. (2015). Self-assembly with varying hydrophobic centers: Synthesis of red blood cell-like basic magnesium carbonate microspheres. Particuology, 22, 145-150. https://doi.org/10.1016/j.partic.2014.09.002

Self-assembly with varying hydrophobic centers: Synthesis of red blood cell-like basic magnesium carbonate microspheres

Xinlong Ma, Guoqing Ning ^*, Bing Chen, Chuanlei Qi, Xingying Lan, Jinsen Gao

State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing 102249, China

10.1016/j.partic.2014.09.002

Volume 22, October 2015, Pages 145-150

Received 4 July 2014, Revised 27 August 2014, Accepted 5 September 2014, Available online 27 December 2014, Version of Record 4 August 2015.

E-mail: ngq@cup.edu.cn

Highlights

• RBC-like basic magnesium carbonate microspheres were synthesized via a hydrothermal method.

• The formation of microspheres was attributed to amphiphilic surfactant-participated self-assembly.

• The method can be applied to the synthesis of other carbonate or metallic oxide self-assemblies.

Abstract

Basic magnesium carbonate microspheres with a red blood cell (RBC)-like appearance and diameters of ∼3 μm were synthesized by amphiphilic molecule-participated self-assembly under hydrothermal conditions. In the self-assembly, sodium dodecyl benzene sulfonate served as a template for the formation of Mg(OH)₂ spherical micelles and also as a reactant precursor that releases CO₂ to react with Mg(OH)₂. The growth of the microspheres is driven by the continuous generation of new hydrophobic centers because of the consumption of hydrophilic poles (single bondSO₃⁻). The surfactant-directed self-assembly can be applied to the synthesis of other carbonate or metallic oxide self-assemblies, indicating that it is a universal self-assembly method for amphiphilic molecules.

Graphical abstract

Keywords

Self-assembly; Red blood cell-like; Basic magnesium carbonate; Microspheres

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