Related Experiment Video
Updated: Jan 21, 2026
09:21
Microcontact Printing of Proteins for Cell Biology
Published on: December 5, 2008
21.6K
Tailoring patches on particles: a modified microcontact printing routine using polymer-functionalised stamps
Marcel Sperling1, Martin Reifarth, Richard Grobe
1Fraunhofer Institute for Applied Polymer Research IAP, D-14476 Potsdam-Golm, Germany. alexander.boeker@iap.fraunhofer.de.
Chemical Communications (Cambridge, England)
|August 7, 2019
Summary
This study introduces a refined microcontact printing method for precise particle patching on silica microparticles using grafted polymer-functionalized stamps. The technique significantly enhances patch accuracy, validated by statistical analysis.
Area of Science:
- Materials Science
- Surface Chemistry
- Nanotechnology
Background:
- Microcontact printing (μCP) is a key technique for surface patterning.
- Achieving high precision in particle deposition on microparticles remains a challenge.
- Porous silica microparticles are widely used in various applications.
Purpose of the Study:
- To develop a modified microcontact printing routine for precise particle patching.
- To improve the accuracy of depositing low molecular weight ink (LMWI) patches on porous SiO2 microparticles.
- To evaluate the effectiveness of surface-functionalized stamps in enhancing patch precision.
Main Methods:
- Modification of the standard microcontact printing (μCP) process.
- Surface functionalization of stamps with grafted polymers.
- Deposition of low molecular weight ink (LMWI) on porous SiO2 microparticles.
- Software-assisted statistical analysis for precision evaluation.
Main Results:
- The modified μCP routine successfully introduced particle patches on SiO2 microparticles.
- Utilizing surface-functionalized stamps significantly improved patch precision.
- Statistical analysis confirmed the enhanced accuracy of the developed method.
Conclusions:
- The reported modified μCP routine offers a significant advancement in precise particle deposition.
- Grafted polymer-functionalized stamps are effective in improving patch accuracy on microparticles.
- This method provides a reliable approach for creating well-defined particle patches for advanced material applications.
Related Concept Videos
02:34Polymers
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...
40.5K
02:34Polymers
23.2K
23.2K
01:02Long-patch Base Excision Repair
7.9K
Since the discovery of the two BER pathways, there has been a debate about how a cell chooses one pathway over the other and the factors determining this selection. Numerous in vitro experiments have pointed out multiple determinants for the sub-pathway selection. These are:
7.9K
03:37Subatomic Particles
112.4K
Dalton was only partially correct about the particles that make up matter. All matter is composed of atoms, and atoms are composed of three smaller subatomic particles: protons, neutrons, and electrons. These three particles account for the mass and the charge of an atom.
112.4K
02:10The Nucleosome Core Particle
14.1K
Nucleosomes are the DNA-histone complex, where the DNA strand is wound around the histone core. The histone core is an octamer containing two copies of H2A, H2B, H3, and H4 histone proteins.
The paradox
Nucleosomes, paradoxically, perform two opposite functions simultaneously. On the one hand, their main responsibility is to protect the delicate DNA strands from physical damage and help achieve a higher compaction ratio. While on the other hand, they must allow polymerase enzymes to access DNA...
The paradox
Nucleosomes, paradoxically, perform two opposite functions simultaneously. On the one hand, their main responsibility is to protect the delicate DNA strands from physical damage and help achieve a higher compaction ratio. While on the other hand, they must allow polymerase enzymes to access DNA...
14.1K
01:18Patch Clamp
6.4K
Many fundamental cell functions such as muscle contraction and nerve transmission rely on the electrical signals produced by the movement of positively and negatively charged ions across the cell membrane. One competent method to record current flowing across the whole cell or single ion channel is the patch-clamp technique.
In this method, a glass micropipette containing electrolyte solution is tightly sealed against a small portion of the cell membrane. As a result, a patch of the cell...
In this method, a glass micropipette containing electrolyte solution is tightly sealed against a small portion of the cell membrane. As a result, a patch of the cell...
6.4K