A Review of Fabrication of DNA Origami Plasmonic Structures for the Development of Surface-Enhanced Raman Scattering (SERS) Platforms

Mehmandoust, Saeideh; Eskandari, Vahid; Karooby, Elaheh

doi:10.1007/s11468-023-02064-9

Cited by 5 publications

(2 citation statements)

References 89 publications

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“…In the realm of nanotechnology, DNA origami nanoantennas have emerged as a groundbreaking tool for signal enhancement in fluorescence and Raman detection . Using the DNA origami technique for constructing nanoantennas, a long, single-stranded viral scaffold strand and a set of short artificial oligonucleotides are self-assembled into a three-dimensional nanostructure .…”

Section: Introductionmentioning

confidence: 99%

Broad-Band Fluorescence Enhancement of QDs Captured in the Hotspot of DNA Origami Nanonantennas

Yaadav,

Trofymchuk,

Gong

et al. 2024

J. Phys. Chem. C

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The integration of the DNA origami technique with plasmonic nanostructures has led to the development of optical antennas capable of significantly enhancing the excitation and emission rates of proximal fluorophores by offering precise control over their spatial positioning. However, despite these advancements, conventional fluorophores still face challenges due to their susceptibility to photobleaching. This limitation highlights the need for more stable alternatives. Quantum dots (QDs), also known as "artificial atoms", emerge as a promising candidate, offering an array of distinctive size-dependent spectral qualities, encompassing broad absorption ranges, tight emission bands, adjustable fluorescence, and better photostability. The pivotal challenge is ensuring the QDs' precise placement within plasmonic hotspots to unlock maximal signal enhancement. To tackle this, we used DNA origami-based NanoAntennas with Cleared HOtSpots (NACHOS) to successfully incorporate divalent DNA-tagged QDs of different sizes within the hotspot of two 100 nm silver nanoparticles. Known for their broad-band optical properties, silver nanoparticles enabled fluorescence enhancement for three spectrally different QDs, with more than 100-fold enhancement for the smallest QDs, alongside a reduction in their fluorescence lifetime. This integration deepens our understanding of nanoscale interactions and charts a path for the development of advanced plasmonic devices, establishing a robust framework for tailored bioassays.

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Section: Introductionmentioning

confidence: 99%

Broad-Band Fluorescence Enhancement of QDs Captured in the Hotspot of DNA Origami Nanonantennas

Yaadav,

Trofymchuk,

Gong

et al. 2024

J. Phys. Chem. C

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“…Surface-enhanced Raman scattering (SERS) greatly amplifies the Raman signals of analytes near enhancing materials [ 1 , 2 ]. Electromagnetic and chemical enhancements, particularly electromagnetic field amplification (localized surface plasmon resonance (LSPR)) and charge transfer, contribute to Raman signal enhancement [ 3 , 4 , 5 ].…”

Section: Introductionmentioning

confidence: 99%

Na2Ti3O7@RF@Ag Heterostructures as Efficient Substrates for SERS and Photocatalytic Applications

Chang,

Lin,

Chin

et al. 2023

Molecules

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A multi-step procedure was effectively employed to synthesize innovative three-dimensional (3D) heterostructures encompassing sodium titanate (Na2Ti3O7) nanowire cores, an intermediate resorcinol–formaldehyde (RF) layer, and outer silver (Ag) nanoparticle sheaths, referred to as Na2Ti3O7@RF@Ag heterostructures. Initially, a one-step hydrothermal technique facilitated the direct growth of single-crystal Na2Ti3O7 nanowires onto a flexible Ti foil. Subsequently, a two-step wet chemical process facilitated the sequential deposition of an RF layer and Ag nanoparticles onto the Na2Ti3O7 nanowires at a low reaction temperature. Optimal concentrations of silver nitrate and L-ascorbic acid can lead to the cultivation of Na2Ti3O7@RF@Ag heterostructures exhibiting heightened surface-enhanced Raman scattering (SERS), which is particularly beneficial for the detection of rhodamine B (RhB) molecules. This phenomenon can be ascribed to the distinctive geometry of the Na2Ti3O7@RF@Ag heterostructures, which offer an increased number of hot spots and surface-active sites, thereby showcasing notable SERS enhancement, commendable reproducibility, and enduring stability over the long term. Furthermore, the Na2Ti3O7@RF@Ag heterostructures demonstrate remarkable follow-up as first-order chemical kinetic and recyclable photocatalysts for the photodecomposition of an RhB solution under UV light irradiation. This result can be attributed to the enhanced inhibition of electron–hole pair recombination and increased surface-active sites.

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Surface-Enhanced Raman Scattering (SERS) and Finite Difference Time Domain (FDTD) Investigations of Plasmonic and Flexible Filter Papers for the Detection of the Molecular Vibrations of Amoxicillin

Sahbafar,

Mehmandoust,

Heydaryan

et al. 2023

Plasmonics

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A Review of Fabrication of DNA Origami Plasmonic Structures for the Development of Surface-Enhanced Raman Scattering (SERS) Platforms

Cited by 5 publications

References 89 publications

Broad-Band Fluorescence Enhancement of QDs Captured in the Hotspot of DNA Origami Nanonantennas

Broad-Band Fluorescence Enhancement of QDs Captured in the Hotspot of DNA Origami Nanonantennas

Na2Ti3O7@RF@Ag Heterostructures as Efficient Substrates for SERS and Photocatalytic Applications

Surface-Enhanced Raman Scattering (SERS) and Finite Difference Time Domain (FDTD) Investigations of Plasmonic and Flexible Filter Papers for the Detection of the Molecular Vibrations of Amoxicillin

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