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Preparation and Friction Force Microscopy Measurements of Immiscible, Opposing Polymer Brushes13:57

Preparation and Friction Force Microscopy Measurements of Immiscible, Opposing Polymer Brushes

14.3K
The methodology to perform friction force microscopy experiments for contacting brushes is presented: Two polymer brushes that are grafted from (a) substrates and (b) colloidal probes are slid to show that, by using two contacting immiscible brush systems, friction in sliding contacts is reduced compared to miscible brush...
14.3K
Fabricating Reactive Surfaces with Brush-like and Crosslinked Films of Azlactone-Functionalized Block Co-Polymers10:09

Fabricating Reactive Surfaces with Brush-like and Crosslinked Films of Azlactone-Functionalized Block Co-Polymers

8.6K
Surface fabrication methods for patterned deposition of nanometer thick brushes or micron thick, crosslinked films of an azlactone block co-polymer are reported. Critical experimental steps, representative results, and limitations of each method are discussed. These methods are useful for creating functional interfaces with tailored physical features and tunable surface...
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Particles without a Box: Brush-first Synthesis of Photodegradable PEG Star Polymers under Ambient Conditions06:56

Particles without a Box: Brush-first Synthesis of Photodegradable PEG Star Polymers under Ambient Conditions

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Poly(ethylene glycol) (PEG) brush-arm star polymers (BASPs) with narrow mass distributions and tunable nanoscopic sizes are synthesized in via ring opening metathesis polymerization (ROMP) of a PEG-norbornene macromonomer followed by transfer of portions of the resulting living brush initiator to vials containing varied amounts of a rigid, photo-cleavable bis-norbornene...
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Polymers02:34

Polymers

40.5K
The word polymer is derived from the Greek words “poly” which means “many” and “mer” which means “parts”. Polymers are long chains of molecules composed of repeating units of smaller molecules, known as monomers. They either occur naturally, such as DNA and proteins, or can be constructed synthetically, like plastics. They have varied structural characteristics, such as linear chains, branched chains, or complex networks, that contribute to the...
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Analysis of Motility Patterns of Stentor During and After Oral Apparatus Regeneration Using Cell Tracking07:17

Analysis of Motility Patterns of Stentor During and After Oral Apparatus Regeneration Using Cell Tracking

2.3K
We present a protocol for the characterization of motility and behavior of a population of hundred micron- to millimeter-sized cells using brightfield microscopy and cell tracking. This assay reveals that Stentor coeruleus transitions through four behaviorally distinct phases when regenerating a lost oral...
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Depolymerizable Olefinic Polymers Based on Fused-Ring Cyclooctene Monomers08:12

Depolymerizable Olefinic Polymers Based on Fused-Ring Cyclooctene Monomers

3.9K
Here, we describe protocols for the preparation of trans-cyclobutane fused cyclooctenes (tCBCO), their polymerization to prepare depolymerizable olefinic polymers, and the depolymerization of these polymers under mild conditions. Additionally, protocols for the preparation of depolymerizable networks and compression molding of rigid linear plastics based on this system are...
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相关实验视频

Updated: Jan 20, 2026

Preparation and Friction Force Microscopy Measurements of Immiscible, Opposing Polymer Brushes
13:57

Preparation and Friction Force Microscopy Measurements of Immiscible, Opposing Polymer Brushes

Published on: December 24, 2014

14.3K

可擦除和再生的多元组件图案聚合物刷.

Yuhong Cui1, Baoluo He1, Qian Ye1

  • 1State Key Laboratory of Solidification Processing, Center of Advanced Lubrication and Seal Materials, School of Materials Science and Engineering, Northwestern Polytechnical University 710072 Xi'an China.

Chemical science
|January 19, 2026
PubMed
概括

这项研究引入了一种DNA杂交技术,用于精确地模拟聚合物刷的表面,从而实现定制材料特性和可逆接种,用于像生物传感这样的先进应用.

更多相关视频

Fabricating Reactive Surfaces with Brush-like and Crosslinked Films of Azlactone-Functionalized Block Co-Polymers
10:09

Fabricating Reactive Surfaces with Brush-like and Crosslinked Films of Azlactone-Functionalized Block Co-Polymers

Published on: June 30, 2018

8.6K
Particles without a Box: Brush-first Synthesis of Photodegradable PEG Star Polymers under Ambient Conditions
06:56

Particles without a Box: Brush-first Synthesis of Photodegradable PEG Star Polymers under Ambient Conditions

Published on: October 10, 2013

40.2K

相关实验视频

Last Updated: Jan 20, 2026

Preparation and Friction Force Microscopy Measurements of Immiscible, Opposing Polymer Brushes
13:57

Preparation and Friction Force Microscopy Measurements of Immiscible, Opposing Polymer Brushes

Published on: December 24, 2014

14.3K
Fabricating Reactive Surfaces with Brush-like and Crosslinked Films of Azlactone-Functionalized Block Co-Polymers
10:09

Fabricating Reactive Surfaces with Brush-like and Crosslinked Films of Azlactone-Functionalized Block Co-Polymers

Published on: June 30, 2018

8.6K
Particles without a Box: Brush-first Synthesis of Photodegradable PEG Star Polymers under Ambient Conditions
06:56

Particles without a Box: Brush-first Synthesis of Photodegradable PEG Star Polymers under Ambient Conditions

Published on: October 10, 2013

40.2K

科学领域:

  • 材料科学 材料科学 材料科学
  • 表面化学 表面化学
  • 生物技术是生物技术.

背景情况:

  • 有图案的聚合物刷子提供可控的表面修改,以提供定制的界面特性.
  • 多组件刷在表面功能和界面调节方面提高了多功能性.

研究的目的:

  • 开发一种基于DNA杂交的微接触印刷技术,用于制造精确纹理的聚合物刷.
  • 为了加强对聚合物刷特性的控制,并使可逆移植成为可能.

主要方法:

  • 微接触式打印 (μCP) 用于在金基板上固定单链DNA (ssDNA).
  • 动不动的ssDNA与启动器功能化的互补ssDNA的杂交.
  • 表面启动的原子转移基聚合 (SI-ATRP) 用于聚合物刷制造.

主要成果:

  • 对聚合物刷的分子量,组成和功能实现了精确的控制.
  • 通过DNA解和复杂化来证明可逆的聚合物刷接种.
  • 成功构建了二进制和三进制刷面,采用各种聚合物类型.

结论:

  • DNA杂交方法为创建多功能表面提供了一个强大的平台.
  • 这种技术为表面接种应用提供了更高的精度和可控性.
  • 开发的方法适用于生物传感,诊断和其他量身定制的表面应用.