Dual Colorimetric and Fluorescent Authentication Based on Semiconducting Polymer Dots for Anticounterfeiting Applications
- 29 August 2017
- journal article
- research article
- Published by American Chemical Society (ACS) in ACS Applied Materials & Interfaces
- Vol. 9 (36), 30918-30924
- https://doi.org/10.1021/acsami.7b08993
Abstract
Semiconducting polymer dots (Pdots) have recently emerged as a novel type of ultrabright fluorescent probes that can be widely used in analytical sensing and material science. Here, we developed a dual visual reagent based on Pdots for anticounterfeiting applications. We first designed and synthesized two types of photoswitchable Pdots by incorporating photochromic dyes with multicolor semiconducting polymers to modulate their emission intensities and wavelengths. The resulting full-color Pdot assays showed that the colorimetric and fluorescent dual-readout abilities enabled the Pdots to serve as an anticounterfeiting reagent with low background interference. We also doped these Pdots into flexible substrates and prepared these Pdots as inks for pen handwriting as well as inkjet printing. We further applied this reagent in printing paper and checks for high-security anticounterfeiting purposes. We believe that this dual-readout method based on Pdots will create a new avenue for developing new generations of anticounterfeiting technologies.Keywords
Funding Information
- National Sun Yat-sen University
- Ministry of Science and Technology, Taiwan (MOST 105-2113-M-110-012-MY3)
This publication has 37 references indexed in Scilit:
- Reversibly Photoswitchable Supramolecular Assembly and Its Application as a Photoerasable Fluorescent InkAdvanced Materials, 2016
- Recent advances of semiconducting polymer nanoparticles in in vivo molecular imagingJournal of Controlled Release, 2016
- Future prospects of luminescent nanomaterial based security inks: from synthesis to anti-counterfeiting applicationsNanoscale, 2016
- Use of CdS quantum dot-functionalized cellulose nanocrystal films for anti-counterfeiting applicationsNanoscale, 2016
- The nanolight revolution is comingNature, 2016
- Tunable solid-state fluorescent materials for supramolecular encryptionNature Communications, 2015
- Biomimetic Microfingerprints for Anti‐Counterfeiting StrategiesAdvanced Materials, 2015
- Semiconducting polymer nanoparticles as photoacoustic molecular imaging probes in living miceNature Nanotechnology, 2014
- Recent functional material based approaches to prevent and detect counterfeitingJournal of Materials Chemistry C, 2013
- Multicolor Conjugated Polymer Dots for Biological Fluorescence ImagingACS Nano, 2008