Light-Induced Reversible DNA Ligation of Gold Nanoparticle Superlattices
- Univ. of Southampton (United Kingdom)
- Univ. of Oxford (United Kingdom); Suez Univ. (Egypt)
- Brookhaven National Lab. (BNL), Upton, NY (United States); Columbia Univ., New York, NY (United States)
- Swansea Univ. (United Kingdom)
- Univ. of Oxford (United Kingdom)
DNA-mediated self-assembly of nanoparticles has been of significant interest because it enables access to nanoparticle superstructures that cannot be synthesized otherwise. Yet, the programmability of higher order nanoparticle structures can be easily lost under DNA denaturing conditions. Here, we demonstrate that light can be employed as an external stimulus to master the stability of nanoparticle superlattices (SLs) via the promotion of a reversible photoligation of DNA in SLs. The oligonucleotides attached to the nanoparticles are encoded to ligate using 365 nm light, effectively locking the SLs and rendering them stable under DNA denaturing conditions. The reversible process of unlocking these structures is possible by irradiation with light at 315 nm, recovering the structures to their natural state. Our work inspires an alternative research direction toward postassembly manipulation of nanoparticle superstructures using external stimuli as a tool to enrich the library of additional material forms and their application in different media and environments.
- Research Organization:
- Univ. of Southampton (United Kingdom); Brookhaven National Laboratory (BNL), Upton, NY (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22). Materials Sciences & Engineering Division; USDOE Office of Science (SC), Basic Energy Sciences (BES)
- Grant/Contract Number:
- SC0008772; SC0012704
- OSTI ID:
- 1511760
- Alternate ID(s):
- OSTI ID: 1518952; OSTI ID: 1562481
- Report Number(s):
- BNL-212096-2019-JAAM
- Journal Information:
- ACS Nano, Vol. 13, Issue 5; ISSN 1936-0851
- Publisher:
- American Chemical Society (ACS)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
Web of Science
DNA‐ and Field‐Mediated Assembly of Magnetic Nanoparticles into High‐Aspect Ratio Crystals
|
journal | December 2019 |
Light‐Responsive Colloidal Crystals Engineered with DNA
|
journal | January 2020 |
Similar Records
Combined light- and heat-induced shape memory behavior of anthracene-based epoxy elastomers
Ligand dynamics control structure, elasticity, and high-pressure behavior of nanoparticle superlattices