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Aggregation-Induced Fabrication of Fluorescent Organic Nanorings: Selective Biosensing of Cysteine and Application to Molecular Logic Gate
- Source :
- Langmuir. 31:5025-5032
- Publication Year :
- 2015
- Publisher :
- American Chemical Society (ACS), 2015.
-
Abstract
- Self-aggregation behavior in aqueous medium of four naphthalimide derivatives has exhibited substitution-dependent, unusual, aggregation induced emission enhancement (AIEE) phenomena. Absorption, emission, and time-resolved study initially indicated the formation of J-type fluorescent organic nanoaggregates (FONs). Simultaneous applications of infrared spectroscopy, theoretical studies, and dynamic light scattering (DLS) measurements explored the underlying mechanism of such substitution-selective aggregation of a chloro-naphthalimide organic molecule. Furthermore, transmission electron microscopy (TEM) visually confirmed the formation of ring like FONs with average size of 7.5-9.5 nm. Additionally, naphthalimide FONs also exhibited selective and specific cysteine amino acid sensing property. The specific behavior of NPCl aggregation toward amino acids was also employed as a molecular logic gate in information technology (IT).
- Subjects :
- Molecular logic gate
Chemistry
Analytical chemistry
Infrared spectroscopy
Nanoparticle
Biosensing Techniques
Surfaces and Interfaces
Condensed Matter Physics
Photochemistry
Fluorescence
Dynamic Light Scattering
Naphthalimides
Microscopy, Electron, Transmission
Dynamic light scattering
Transmission electron microscopy
Electrochemistry
Nanoparticles
Molecule
General Materials Science
Cysteine
Biosensor
Spectroscopy
Subjects
Details
- ISSN :
- 15205827 and 07437463
- Volume :
- 31
- Database :
- OpenAIRE
- Journal :
- Langmuir
- Accession number :
- edsair.doi.dedup.....df6224c39d111d785a9cebd5f3c07a18