title: Organic Phase Change Nanoparticles for in-Product Labeling of Agrochemicals.
abstract: There is an urgent need to develop in-product covert barcodes for anti-counterfeiting of agrochemicals. This paper reports a new organic nanoparticle-based in-product barcode system, in which a panel of organic phase change nanoparticles is added as a barcode into in a variety of chemicals (herein agrochemicals). The barcode is readout by detecting melting peaks of organic nanoparticles using differential scanning calorimetry. This method has high labeling capacity due to small sizes of nanoparticles, sharp melting peaks, and large scan range of thermal analysis. The in-product barcode can be effectively used to protect agrochemical products from being counterfeited due to its large coding capacity, technical readiness, covertness, and robustness.
authors.affiliation: Department of Chemical Engineering, Northeastern University, Boston, MA 02115, USA. wang.mia@husky.neu.edu.
authors.forename: Miao
authors.initials: M
authors.lastname: Wang
authors.affiliation: Department of Chemistry, University of California, Santa Barbara, CA 93106, USA. bduong07@gmail.com.
authors.forename: Binh
authors.initials: B
authors.lastname: Duong
authors.affiliation: Department of Chemical Engineering, Northeastern University, Boston, MA 02115, USA. m.su@neu.edu.
authors.forename: Ming
authors.initials: M
authors.lastname: Su
keywords: anti-counterfeiting; chemicals; in-product barcodes; phase change nanoparticles