Fully Printed Geranium-Inspired Encapsulated Arrays for Quantitative Odor Releasing

Bingda Chen; Meng Su; Qi Pan; Zeying Zhang; Shuoran Chen; Zhandong Huang; Zheren Cai; Zheng Li; Xin Qian; Xiaotian Hu; Yanlin Song

doi:10.1021/acsomega.9b02916

Fully Printed Geranium-Inspired Encapsulated Arrays for Quantitative Odor Releasing

ACS Omega. 2019 Nov 14;4(22):19977-19982. doi: 10.1021/acsomega.9b02916. eCollection 2019 Nov 26.

Authors

Bingda Chen^{1

2}, Meng Su¹, Qi Pan^{1

2}, Zeying Zhang^{1

2}, Shuoran Chen³, Zhandong Huang¹, Zheren Cai^{1

2}, Zheng Li^{1

2}, Xin Qian^{1

2}, Xiaotian Hu^{1

2}, Yanlin Song^{1

2}

Affiliations

¹ Key Laboratory of Green Printing, Institute of Chemistry, Chinese Academy of Sciences, Beijing Engineering Research Center of Nanomaterials for Green Printing Technology, Beijing National Laboratory for Molecular Sciences (BNLMS), Zhongguancun North First Street 2, 100190 Beijing, P. R. China.
² University of Chinese Academy of Sciences, Yuquan Road No.19A, 100049 Beijing, P. R. China.
³ Research Center for Green Printing Nanophotonic Materials, Suzhou University of Science and Technology, 215009 Suzhou, P. R. China.

Abstract

Olfactory is an extremely fine way of perception. However, the process of smelling is prone to various interference factors. Further development to enhance the communication desires an odor-releasing strategy, which could quantitatively offer a variety of fragrances. Here, we report a fully printing strategy to heterogeneously integrate odor-containing materials and protective coating films. Inspired from the fragrance-containing drum structure on the geranium leaf, encapsulated arrays are fully printed on the flexible or rigid substrates with more than 20 spices. Quantitative concentrations of odor molecules can be released from the encapsulated arrays after scraping the protective poly(lactic-co-glycolic) acid (PLGA) shells. Importantly, various odor-based arrays are printed on the same flexible substrate, which permits selective releasing and arbitrary mixing of the spices. Effective odor-releasing properties of encapsulated arrays make them promising for food security and anticounterfeiting, investigating olfactory discrimination abilities, and strengthening olfactory communication.