Microcontact printing has proven to be a useful technique in the patterned functionalization of certain chemicals onto surfaces. It has been particularly valuable in the patterning of biological materials. In this review, we describe the basic principles of the technology as well as its use in several applications, with an emphasis on biological ones. We also discuss the limitations and future directions of this method.
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http://dx.doi.org/10.1039/b613349e | DOI Listing |
Anal Chem
January 2025
State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China.
Urea is an important biomarker for diagnosing various kidney and liver disorders. However, many existing methods rely on invasive blood sampling, which can potentially harm patients. Saliva has been recently recognized as a noninvasive and easily collectible alternative to blood for urea quantification.
View Article and Find Full Text PDFACS Appl Mater Interfaces
January 2025
Department of Mechanical and Aerospace Engineering, University of Florida, Gainesville, Florida 32611, United States.
In situ monitoring of small molecule diffusion at solid-solid interfaces is challenging, even with sophisticated equipment. Here, novel chromogenic photonic crystal detectors enabled by integrating bioinspired structural color with stimuli-responsive shape memory polymer (SMP) for detecting trace amounts of small molecule interfacial diffusion are reported. Colorless macroporous SMP membranes with deformed macropores can recover back to the "memorized" photonic crystal microstructures and the corresponding iridescent structural colors when triggered by diffused small molecules.
View Article and Find Full Text PDFAdv Healthc Mater
December 2024
Hard Tissue Development and Regeneration Laboratory, Harbin Medical University, Harbin, 150086, China.
A self-propulsion Janus gallium (Ga)/magnesium (Mg) bimetallic micromotor is designed with favorable biocompatibility and antimicrobial properties as a therapeutic strategy for periodontitis. The Janus Ga/Mg micromotors are fabricated by microcontact printing technique to asymmetrically modify liquid metallic gallium onto magnesium microspheres. Hydrogen bubbles produced by the magnesium-water reaction can provide the driving performance of up to 31.
View Article and Find Full Text PDFActa Biomater
January 2025
Translational Tumor Engineering Laboratory, Department of Biomedical Engineering, National University of Singapore, Singapore 119276, Singapore; Cancer Science Institute, National University of Singapore, Singapore 117599, Singapore; The N.1 Institute for Health, National University of Singapore, Singapore 117456, Singapore. Electronic address:
ACS Omega
October 2024
Department of Mechanical and Aerospace Engineering, Princeton University, Princeton, New Jersey 08544, United States.
The ability to precisely pattern cells and proteins is crucial in various scientific disciplines, including cell biology, bioengineering, and materials chemistry. Current techniques, such as microcontact stamping, 3D bioprinting, and direct photopatterning, have limitations in terms of cost, versatility, and throughput. In this Article, we present an accessible approach that combines the throughput of photomask systems with the versatility of programmable light patterning using a low-cost consumer LCD resin printer.
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