Category Ranking
98%
Total Visits
921
Avg Visit Duration
2 minutes
Citations
20
Article Abstract
Chemical bonds are a key determinant of the structure and properties of a material. Thus, rationally designing arbitrary materials requires complete control over the bond. While atomic bonding is dictated by the identity of the atoms, nanoparticle superlattice engineering, where nanoparticle "atoms" are held together by DNA "bonds", offers a route to design crystal lattices in a way that nature cannot: through altering the oligonucleotide bond. Herein, the use of RNA, as opposed to DNA, is explored by synthesizing superlattices in which nanoparticles are bonded by DNA/DNA, RNA/RNA, and DNA/RNA duplexes. By moving beyond nanoparticle superlattices assembled only with DNA, a new degree of freedom is introduced, providing programmed responsiveness to enzymes and greater bond versatility. Therefore, the oligonucleotide bond can have programmable function beyond dictating the structure of the material and moves nanoparticle superlattices closer to naturally occurring biomaterials, where the line between structural and functional elements is blurred.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5490073 | PMC |
| http://dx.doi.org/10.1021/jacs.5b07908 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Catalytic-Assembly of Nanoparticle Supercrystals by a pH-Controlled DNA Strand-Displacement Circuit.
JACS Au
August 2025
Hefei National Research Center for Physical Sciences at the Microscale, Center for Bioanalytical Chemistry, School of Chemistry and Materials Science, University of Science and Technology of China,Hefei, Anhui 230026, China.
DNA-directed "bonding" of nanoparticle "atoms" has led to highly ordered 3D superlattices of nanomaterial units with programmable crystalline orders. However, it remains a great challenge for the system to avoid being trapped in disordered metastable states toward long-range-ordered nanoparticle arrays. In this work, we present a pH-responsive, enthalpy-mediated strategy to address this dilemma by incorporating a CG-C triplex DNA structure into a strand-displacement circuit that programs the catalytic assembly of DNA-grafted gold nanoparticles.
View Article and Find Full Text PDFSelf-Toughened 2D Moiré Superlattice Membranes with Extreme Thermal Shock Tolerance.
Adv Mater
August 2025
Center for Nanochemistry, Beijing Science and Engineering Center for Nanocarbons, Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, China.
Excellent mechanical strength and toughness are demanded for two-dimensional material (2DM) membranes in various applications to withstand extreme strain and temperature changes and resist crack propagation. However, the trade-off between strength and toughness poses significant challenges in meeting these requirements. This study presents a self-toughened 2D moiré superlattice membrane composed of vertically stacked hexagonal boron nitride and graphene (hBN/Gr) that exhibits high mechanical strength.
View Article and Find Full Text PDFDNA-Engineered CsPbBr Superlattices with Enhanced Electronic Coupling for High-Performance Electrochemiluminescence Biosensing.
ACS Sens
August 2025
College of Chemistry, Jilin Province Research Center for Engineering and Technology of Spectral Analytical Instruments, Jilin University, 2699 Qianjin Street, Changchun 130012, China.
Perovskite quantum dots (PQDs), particularly CsPbBr QDs, are highly promising electrochemiluminescent (ECL) materials due to their excellent optical properties. However, the key challenge in developing PQD materials for practical applications lies in balancing the contradiction between their intrinsic instability in aqueous environments and ECL efficiency. To address this challenge, we employed DNA nanosheets as templates to direct the self-assembly of CsPbBr QDs, into highly ordered two-dimensional superlattices.
View Article and Find Full Text PDFTwo-Dimensional Binary Superlattice of BNNT-Surfactant Vesicle Complex Induced by Electrostatic Interaction.
ACS Cent Sci
June 2025
Department of Applied Plasma & Quantum Beam Engineering, Jeonbuk National University, Jeonju 54896, Republic of Korea.
For a wide range of practical applications of boron nitride nanotubes (BNNTs), it is essential to achieve their highly ordered self-assembled structures. This study reports on a two-dimensional (2D) binary superlattice of individually exfoliated BNNTs with a negative surface charge (p-BNNT25) and cationic surfactant vesicles (CTAT/SDBS vesicles, prepared by mixing cetyltrimethylammonium tosylate (CTAT) and sodium dodecylbenzenesulfonate (SDBS)) complexes through electrostatic interactions. Depending on the surface charge density of the CTAT/SDBS vesicles and the mass ratio between the CTAT/SDBS vesicle and p-BNNT25, the CTAT/SDBS-BNNT complexes formed highly ordered superstructures.
View Article and Find Full Text PDFMoiré superlattices of copper nanocluster assemblies for cancer theranostics.
J Mater Chem B
July 2025
Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati-781039, India.
Herein, we report the first evidence showing the superior therapeutic and diagnostic effects of 2D moiré superlattice nanosheets of luminescent copper nanocluster assemblies on cancerous HeLa cells compared to the parent nanoclusters or their 2D assemblies. These superlattices, at very low concentrations of the metal (10.15 ± 2.
View Article and Find Full Text PDF