Programming nanoparticle valence bonds with single-stranded DNA encoders

Yao, Guangbao; Jiang, Li; Li, Qian; Chen, Xiaoliang; Liu, Xiaoguo; Wang, Fei; Qu, Zhi‐bei; Ge, Zhilei; Narayanan, Raghu Pradeep; Williams, Dewight; Pei, Hao; Zuo, Xiaolei; Wang, Lihua; Yan, Hao; Feringa, Ben L.; Chen, Fan

doi:10.1038/s41563-019-0549-3

Cited by 177 publications

(152 citation statements)

References 71 publications

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“…Even handed planar structures exhibit remarkable CD despite the fact that they are not truly chiral [55][56][57][58][59][60][61][62][63][64][65][66], and their chiral responses can be strongly enhanced with the formation of Fano resonances [66,67], which are promising platforms to manipulate chiral light-matter interactions at the nanoscale [68]. More interestingly, the CD resonance frequency and strength can be controlled by photoinduced optical handedness switching effects [69], phase-changing materials [70,71], external magnetic fields [72], excitation power [73], and (DNA) origami templates [74][75][76][77][78][79][80][81][82][83], which pave the way for realizing chiroptically active devices.…”

Section: Introductionmentioning

confidence: 99%

Dynamic tuning of enhanced intrinsic circular dichroism in plasmonic stereo-metamolecule array with surface lattice resonance

Liu

Cao

et al. 2020

Nanophotonics

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Enhancing the circular dichroism signals of chiral plasmonic nanostructures is vital for realizing miniaturized functional chiroptical devices, such as ultrathin wave plates and high-performance chiral biosensors. Rationally assembling individual plasmonic metamolecules into coupled nanoclusters or periodic arrays provides an extra degree of freedom to effectively manipulate and leverage the intrinsic circular dichroism of the constituent structures. Here, we show that sophisticated manipulation over the geometric parameters of a plasmonic stereo-metamolecule array enables selective excitation of its surface lattice resonance mode either by left- or right-handed circularly polarized incidence through diffraction coupling, which can significantly amplify the differential absorption and hence the intrinsic circular dichroism. In particular, since the diffraction coupling requires no index-matching condition and its handedness can be switched by manipulating the refractive index of either the superstrate or the substrate, it is therefore possible to achieve dynamic tuning and active control of the intrinsic circular dichroism response without the need of modifying structure parameters. Our proposed system provides a versatile platform for ultrasensitive chiral plasmonics biosensing and light field manipulation.

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Section: Introductionmentioning

confidence: 99%

Dynamic tuning of enhanced intrinsic circular dichroism in plasmonic stereo-metamolecule array with surface lattice resonance

Liu

Cao

et al. 2020

Nanophotonics

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“…In previous works, researchers found that poly‐adenine (poly‐A) could strongly interact with AuNPs even without thiol modification, based on which Fan et al. developed a new method to modify AuNP using poly‐A‐containing DNA strands . Later on, Liu et al.…”

Section: Methodsmentioning

confidence: 99%

Sequence‐Dependent DNA Functionalization of Upconversion Nanoparticles and Their Programmable Assemblies

Ge,

Wang,

Pan

et al. 2020

Angew Chem Int Ed

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DNA‐modified lanthanide‐doped upconversion nanoparticles (DNA‐UCNPs) that combine the functions of DNA and the optical features of UCNPs have shown great promise in a wide range of fields. However, challenges remain in precisely tethering and orienting the DNA strands on the UCNP surface. Herein, we systematically investigate the sequence dependence of DNAs in their interactions with UCNPs, and reveal that poly‐cytosine (poly‐C) has high affinity for the UCNP surface. A general approach to synthesize monodispersed DNA‐UCNP conjugates is developed using poly‐C‐containing diblock DNA strands. The poly‐C segment of the DNA strand binds to the surfaces of UCNPs and the second segment is oriented perpendicularly on the UCNP surface, making the DNA‐UCNPs highly stable and monodispersed in aqueous solution. The dense layer of DNA on the UCNP surface enables the programmable assembly of UCNPs with other DNA‐functionalized nanoparticles or DNA origamis through hybridization, resulting in the formation of well‐organized complex structures.

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“…[84] Additionally, another work we want to emphasize is the programmed multi-valence polyadenine (poly-A)/AuNPs DNA encoder that reported by Fan's group not long ago. [85] Different from abovementioned ones, poly-A region was taken as the noncovalent linker. They explored a method for patterning colloidal gold nanoparticles with valence variety using ssDNA encoders containing poly-A.…”

Section: Aunpsmentioning

confidence: 99%

Propelling DNA Computing with Materials’ Power: Recent Advancements in Innovative DNA Logic Computing Systems and Smart Bio‐Applications

Fan

Wang

et al. 2020

Advanced Science

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DNA computing is recognized as one of the most outstanding candidates of next-generation molecular computers that perform Boolean logic using DNAs as basic elements. Benefiting from DNAs' inherent merits of low-cost, easy-synthesis, excellent biocompatibility, and high programmability, DNA computing has evoked substantial interests and gained burgeoning advancements in recent decades, and also exhibited amazing magic in smart bio-applications. In this review, recent achievements of DNA logic computing systems using multifarious materials as building blocks are summarized. Initially, the operating principles and functions of different logic devices (common logic gates, advanced arithmetic and non-arithmetic logic devices, versatile logic library, etc.) are elaborated. Afterward, state-of-the-art DNA computing systems based on diverse "toolbox" materials, including typical functional DNA motifs (aptamer, metal-ion dependent DNAzyme, G-quadruplex, i-motif, triplex, etc.), DNA tool-enzymes, non-DNA biomaterials (natural enzyme, protein, antibody), nanomaterials (AuNPs, magnetic beads, graphene oxide, polydopamine nanoparticles, carbon nanotubes, DNA-templated nanoclusters, upconversion nanoparticles, quantum dots, etc.) or polymers, 2D/3D DNA nanostructures (circular/interlocked DNA, DNA tetrahedron/polyhedron, DNA origami, etc.) are reviewed. The smart bio-applications of DNA computing to the fields of intelligent analysis/diagnosis, cell imaging/therapy, amongst others, are further outlined. More importantly, current "Achilles' heels" and challenges are discussed, and future promising directions of this field are also recommended.

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Programming nanoparticle valence bonds with single-stranded DNA encoders

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Cited by 177 publications

References 71 publications

Dynamic tuning of enhanced intrinsic circular dichroism in plasmonic stereo-metamolecule array with surface lattice resonance

Dynamic tuning of enhanced intrinsic circular dichroism in plasmonic stereo-metamolecule array with surface lattice resonance

Sequence‐Dependent DNA Functionalization of Upconversion Nanoparticles and Their Programmable Assemblies

Propelling DNA Computing with Materials’ Power: Recent Advancements in Innovative DNA Logic Computing Systems and Smart Bio‐Applications

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