DNA-mediated assembly of a gold-nanoparticle film with controllable sonic behavior detected by novel electric-induced ultrasound. (12th September 2022)

• Record Type: Journal Article
• Authors: Wang, Peng; Zhang, Jie; Lu, Yunhao; Guo, Zhaobin; Jiang, Qing; Sun, Jianfei
• Is Part Of: Biomaterials science. Volume 10:Number 21(2022)
• Page Start: 6190
• Page End: 6200
• Publication Date: 2022-09-12
• Subjects: Biomedical materials -- Periodicals; 610.28
• DOI: 10.1039/d2bm00778a
• Languages: English
• ISSNs: 2047-4830

Abstract

Abstract : DNA-functionalized GNPs were employed as building blocks to establish two-dimensional films via LBL assembly and their sonic behavior could be regulated through altering the sequence of SH-DNA and linker DNA in a controllable manner detected by electric-induced ultrasound. Abstract : Two-dimensional gold-assembled nanomaterials have garnered considerable interest in biomedical applications such as wearable sensors and flexible devices. The assembly can be accomplished via attractive interactions between gold nanoparticles (GNPs) and a standard polymer. It is highly desirable and a great challenge to develop a new assembly method that can provide formed materials with novel properties. In this work, we explored complementary DNA-functionalized gold nanoparticles (DNA-GNPs) as building blocks to establish multifunctional two-dimensional gold nanomaterials via layer-by-layer (LBL) assembly. We found that the DNA-mediated assembly endows GNP films with a superlattice and their sonic behavior could be regulated in a controllable manner through altering the sequence of SH-DNA and linker DNA, which was detected by the electric-induced ultrasound method. Our observation suggested that this DNA-mediated assembly of GNP films with controllable sonic behaviors could greatly promote the biomedical application of two-dimensional assembled-gold nanomaterials.