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Microfluidic-assisted assembly of fluorescent self-healing gel particles toward dual-signal sensors.
- Source :
-
Journal of Materials Science . Sep2021, Vol. 56 Issue 26, p14832-14843. 12p. 3 Color Photographs, 2 Diagrams. - Publication Year :
- 2021
-
Abstract
- Quantum dots (QDs)/gel composites have sparked tremendous interests due to their great potentials in sensors. However, in most cases, these sensors are focused on single signal detection, suffers from a key hurdle of low signal density. Thus, it is highly desirable to develop multi-signal QDs/gel-based sensors. In this work, we constructed dual-signal QDs/gel assemblies by a microfluidic-assisted method, which shows promising application in dual-signal sensors. Typically, self-healing QDs/gel beads with different fluorescent signals were fabricated via microfluidic techniques. In virtue of the microfluidic-assisted self-assembly, various dual-signal assemblies were constructed controllably in the confined channels, where self-healing QDs/gel beads serve as building blocks. As expected, the assemblies exhibit rapid dual-signal detection capability toward organic amines and pH values. In addition, by using self-healing gels as printable materials, the combination of the self-assembly strategy with 3D microfluidic printing allows the generation of diverse responsive dual-signal patterns and structures. The self-assembly of self-healing building blocks not only offers a promising route toward fluorescent dual-signal architectures for advanced sensors, but will also guide the development of 3D printing for controllable fabrication of functional assemblies. [ABSTRACT FROM AUTHOR]
- Subjects :
- *DETECTORS
*QUANTUM dots
*SIGNAL detection
*THREE-dimensional printing
Subjects
Details
- Language :
- English
- ISSN :
- 00222461
- Volume :
- 56
- Issue :
- 26
- Database :
- Academic Search Index
- Journal :
- Journal of Materials Science
- Publication Type :
- Academic Journal
- Accession number :
- 151084729
- Full Text :
- https://doi.org/10.1007/s10853-021-05992-1