Fast Adsorption of Soft Hydrogel Microspheres on Solid Surfaces in Aqueous Solution

被引：39

作者：

Matsui, Shusuke ^{[1
]}

Kureha, Takuma ^{[1
]}

Hiroshige, Seina ^{[1
]}

Shibata, Mikihiro ^{[3
,4
]}

Uchihashi, Takayuki ^{[5
,6
]}

Suzuki, Daisuke ^{[1
,2
]}

机构：

[1] Shinshu Univ, Grad Sch Text Sci & Technol, 3-15-1 Tokida, Ueda, Nagano 3868567, Japan

[2] Shinshu Univ, Div Smart Text, Inst Fiber Engn, Interdisciplinary Cluster Cutting Edge Res, 3-15-1 Tokida, Ueda, Nagano 3868567, Japan

[3] Kanazawa Univ, High Speed AFM Biol Applicat Unit, Inst Frontier Sci Initiat, Kakuma Machi, Kanazawa, Ishikawa 9201192, Japan

[4] Kanazawa Univ, BioAFM Frontier Res Ctr, Kakuma Machi, Kanazawa, Ishikawa 9201192, Japan

[5] Nagoya Univ, Grad Sch Sci, Dept Phys, Chikusa Ku, Furo Cho, Nagoya, Aichi 4648602, Japan

[6] Nagoya Univ, Grad Sch Sci, Struct Biol Res Ctr, Chikusa Ku, Furo Cho, Nagoya, Aichi 4648602, Japan

来源：

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2017年 / 56卷 / 40期

关键词：

adsorption; deformability; high-speed atomic force microscopy; microgels; polymeric microspheres; ATOMIC-FORCE MICROSCOPY; ELECTROSTATIC INTERACTIONS; BIOMOLECULAR PROCESSES; PARTICLE ADSORPTION; PHASE-TRANSITION; TEMPERATURE; MICROGELS; BEHAVIOR; AFM;

D O I：

10.1002/anie.201705808

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The real-time adsorption behavior of polymeric colloidal microspheres onto solid surfaces in aqueous solution was visualized for the first time using high-speed atomic force microscopy (HS-AFM) to reveal how the softness of the microspheres affects their dynamic adsorption. Studies that focus on the deformability of microspheres upon dynamic adsorption have not yet been reported, most likely on account of a lack of techniques that appropriately depict the dynamic adsorption and deformation behavior of individual microspheres at the nanoscale in real time. In this study, the deformability of microspheres plays a crucial role on the adsorption kinetics, that is, soft hydrogel microspheres adsorb faster than harder elastomeric or rigid microspheres. These results should provide insight towards development of new colloidal nanomaterials that exhibit effective adsorption on specific sites in aqueous solution.

引用

页码：12146 / 12149

页数：4

共 22 条

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