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Amphiphilic polymer-template synthesis and pH-triggered phase transfer of luminescent silver nanocrystals
- Source :
- Materials Letters. 96:20-23
- Publication Year :
- 2013
- Publisher :
- Elsevier BV, 2013.
-
Abstract
- Luminescent silver nanocrystals (L-AgNCs) were synthesized using an amphiphilic polymer template, consisting of dodecylamine (DDA) grafted poly(acrylic acid) (PAA). Upon UV-light irradiation at 365 nm for different time intervals, AgNCs were gradually achieved and exhibited distinct luminescence. After undergoing 1.5 h irradiation, the maximum emission peak of L-AgNCs was located at 612 nm. In addition, the resulting L-AgNCs possessed pH-triggered phase transfer from water to chloroform. When adjusting pH of buffer solutions contained L-AgNCs from 5.0 toward 4.0, the hydrophilic AgNCs gradually became hydrophobic, together with a significant transfer from H 2 O phase to chloroform phase. This design could be further developed toward a smart luminescence imaging reagent, or therapeutic nanoparticles with controllable solubility by a small pH change.
- Subjects :
- chemistry.chemical_classification
Nanocomposite
Materials science
Mechanical Engineering
Nanoparticle
Polymer
Condensed Matter Physics
chemistry.chemical_compound
chemistry
Chemical engineering
Mechanics of Materials
Reagent
Phase (matter)
Organic chemistry
General Materials Science
Solubility
Luminescence
Acrylic acid
Subjects
Details
- ISSN :
- 0167577X
- Volume :
- 96
- Database :
- OpenAIRE
- Journal :
- Materials Letters
- Accession number :
- edsair.doi...........6a1e9bff073529c842c5950862626c59