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Fast Enzymatic Processing of Proteins for MS Detection with a Flow-through Microreactor

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Microchemical Pen: An Open Microreactor for Region-Selective Surface Modification.

Sifeng Mao¹, Chiho Sato¹, Yuma Suzuki²

¹Department of Applied Chemistry, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University, Minamiohsawa, Hachioji, Tokyo, 192-0397, Japan.

Chemphyschem : a European Journal of Chemical Physics and Physical Chemistry

|August 10, 2016

Summary

This summary is machine-generated.

This study introduces a microchemical pen for precise surface modification. This novel device enables region-selective chemical reactions on solid surfaces, overcoming limitations of previous methods.

Keywords:

laminar flow microchemical pen microfluidics microreactors region-selective surface modification

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Area of Science:

Materials Science
Chemistry
Engineering

Background:

Existing micro surface-modification techniques like photolithography and ink-jet systems operate in open space.
Push-pull systems in solution enable dispensing but not microscale, region-selective chemical reactions.
A gap exists in achieving controlled, localized chemical reactions on surfaces at the microscale.

Purpose of the Study:

To develop a microchemical pen for region-selective chemical reactions.
To enable microscale surface modification and patterning.
To demonstrate a novel open microreactor for surface chemistry.

Main Methods:

Utilizing microfluidic laminar flows within a microchemical pen.
Leveraging mutual diffusion in a tiny diffusion layer as the reaction zone.
Implementing a system for controlled reagent delivery and reaction on solid samples.

Main Results:

Demonstrated the first open microreactor for reacting two different reagents on a solid sample.
Successfully achieved region-selective chemical reactions for micro surface modification and patterning.
Confirmed the multifunctional capabilities of the microchemical pen across various scientific domains.

Conclusions:

The microchemical pen effectively enables region-selective chemical reactions for micro surface modification.
This technology opens new possibilities for microscale patterning and functionalization.
The device's versatility is validated by applications in inorganic chemistry, polymer science, electrochemistry, and biological sample treatment.