scholarly journals Two-dimensional polymers with versatile functionalities via gemini monomers

2019 ◽  
Vol 5 (11) ◽  
pp. eaaw9120
Author(s):  
Yang Li ◽  
Huimin Gao ◽  
Huan Yu ◽  
Ke Jiang ◽  
Hua Yu ◽  
...  
Keyword(s):  
Radical Copolymerization ◽  
Two Dimensional ◽  
Liquid Interfaces ◽  
Free Radical Copolymerization ◽  
Practical Applications ◽  
Size And Shape ◽  
Synthetic Strategy ◽  
Repeat Units ◽  
Covalently Linked ◽  
Solid Liquid

Two-dimensional synthetic polymers (2DSPs) are sheet-like macromolecules consisting of covalently linked repeat units in two directions. Access to 2DSPs with controlled size and shape and diverse functionality has been limited because of the need for monomers to retain their crystallinity throughout polymerization. Here, we describe a synthetic strategy for 2DSPs that obviates the need for crystallinity, via the free radical copolymerization of amphiphilic gemini monomers and their monomeric derivatives arranged in a bilayer at solid-liquid interfaces. The ease of this strategy allowed the preparation of 2DSPs with well-controlled size and shape and diverse functionality on solid templates composed of various materials with wide-ranging surface curvatures and dimensions. The resulting 2DSPs showed remarkable mechanical strength and have multiple applications, such as nanolithographic resist and antibacterial agent. The broad scope of this approach markedly expands the chemistry, morphology, and functionality of 2DSPs accessible for practical applications.

scholarly journals Two-dimensional nanoframes with dual rims

2019 ◽  
Vol 10 (1) ◽  
Author(s):  
Sungjae Yoo ◽  
Jeongwon Kim ◽  
Sungwoo Choi ◽  
Doojae Park ◽  
Sungho Park
Keyword(s):  
Van Der Waals ◽  
Selective Etching ◽  
Van Der Waals Interactions ◽  
Two Dimensional ◽  
Large Area ◽  
Lattice Constants ◽  
Size And Shape ◽  
Single Entity ◽  
Synthetic Strategy ◽  
High Degree

AbstractThe synthesis of highly complex two-dimensional (2D) metal nanoframes remains a great challenge. Synthetic strategies for preparing 2D metal nanoframes are few, and rational and systematic synthetic pathways to more complicated architectures have not yet been reported. Herein, we demonstrate a stepwise synthetic strategy for complex 2D metal nanoframes with a high degree of intricacy; the strategy leads to a variety of shapes, including rings, triangles, hexagons, and tripods with tailorable single or double frames in a single entity. These nanoframes of high homogeneity could be obtained through selective combination of four different chemical toolkits consisting of selective etching and deposition on certain facets, and concentric and/or eccentric regrowth by controlling the mismatches of lattice constants of metals. The resulting nanoframes were highly homogeneous in size and shape and had van der Waals interactions that maximized rim-to-rim contact, allowing them to uniquely self-assemble into large-area superstructures.

Investigating how vesicle size influences vesicle adsorption on titanium oxide: a competition between steric packing and shape deformation

2017 ◽  
Vol 19 (3) ◽  
pp. 2131-2139 ◽  
Author(s):  
Abdul Rahim Ferhan ◽  
Joshua A. Jackman ◽  
Nam-Joon Cho
Keyword(s):  
Titanium Oxide ◽  
Soft Matter ◽  
Lipid Vesicles ◽  
Shape Deformation ◽  
Liquid Interfaces ◽  
Supported Lipid Bilayer ◽  
Vesicle Size ◽  
Practical Applications ◽  
Vesicle Adsorption ◽  
Solid Liquid

Understanding the adsorption behavior of lipid vesicles at solid–liquid interfaces is important for obtaining fundamental insights into soft matter adsorbates as well as for practical applications such as supported lipid bilayer (SLB) fabrication.

scholarly journals Drag reduction methods at solid-liquid interfaces

Friction ◽  
2021 ◽  
Author(s):  
Min Liu ◽  
Liran Ma
Keyword(s):  
Liquid Phase ◽  
Drag Reduction ◽  
Relative Motion ◽  
Liquid Interfaces ◽  
Friction Drag ◽  
Practical Applications ◽  
Reduction Methods ◽  
Ship Navigation ◽  
Solid Liquid ◽  
Friction Drag Reduction

AbstractFriction drag is a nonnegligible matter when relative motion happens between solid and liquid phase, which brings many inconveniences in ship navigation, fluid transportation, microfluid devices, etc. Thereby various methods have been developed focusing on friction drag reduction. In this article, a review of several widely studied drag reduction methods is given, specially, their advantages and limitations in practical applications are discussed. Besides, a comparison of different methods is made and the development prospect of drag reduction is concluded.

Two-Dimensional Protein Crystallization at Solid−Liquid Interfaces

Langmuir ◽  
1997 ◽  
Vol 13 (25) ◽  
pp. 6737-6745 ◽  
Author(s):  
T. L. Calvert ◽  
D. Leckband
Keyword(s):  
Protein Crystallization ◽  
Two Dimensional ◽  
Liquid Interfaces ◽  
Solid Liquid
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