Micron-Scale Fabrication of Ultrathin Amorphous Copper Nanosheets Templated by DNA Scaffolds

Ouyang, Xiangyuan; Wu, Yongli; Gao, Yanjing; Li, Lingyun; Li, Le; Liu, Ting; Jing, Xinxin; Fu, Yue; Luo, Jing; Xie, Gang; Jia, Sisi; Li, Mingqiang; Li, Qian; Fan, Chunhai; Liu, Xiaoguo

doi:10.1021/jacs.2c12009

Cited by 15 publications

(17 citation statements)

References 81 publications

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“…The synthesis processes according to our previous work . Detailed formation process and schematic illustration of the folding pathway of DNS are shown in Figure S1, respectively.…”

Section: Methodsmentioning

confidence: 99%

Copper Nanosheet-Based Wash-Free Fluorescence Imaging of Cancer Cells

Li,

Xue,

et al. 2024

Anal. Chem.

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Near-infrared fluorescence (NIRF) probes greatly facilitate in vivo imaging of various biologically important species. However, there are several significant limitations such as consuming washing steps, photobleaching, and low signal intensity. Herein, we synthesized fluorescent copper nanosheets templated with DNA scaffolds (DNS/CuNSs). We employ them and Cy5.5 of the fluorescence resonance energy transfer (FRET) system, which have a larger Stokes shift (∼12-fold) than the traditional NIRF dye Cy5.5. Based on their excellent fluorescence properties, we employ DNS/CuNSs-Cy5.5 for fluorescence probes in cancer cell imaging. Compared with the free Cy5.5 fluorescence probe, the novel fluorescence imaging probe implements wash-free imaging and exhibits enhanced antiphotobleaching ability (∼5.5-fold). Moreover, the FRET system constructed by DNS/ CuNSs has a higher signal amplification ability (∼4.17-fold), which is more similar to that of Cu nanoclusters prepared with DNA nanomonomers as a template. This work provides a new idea for cancer cell MCF-7 imaging and is expected to promote the development of cancer cell fluorescence imaging.

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“…The synthesis processes according to our previous work . Detailed formation process and schematic illustration of the folding pathway of DNS are shown in Figure S1, respectively.…”

Section: Methodsmentioning

confidence: 99%

Copper Nanosheet-Based Wash-Free Fluorescence Imaging of Cancer Cells

Li,

Xue,

et al. 2024

Anal. Chem.

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“…The amorphous Ni(OH)S nanosheets formed in situ have good OER and urea oxidation reaction (UOR) properties. Moreover, amorphous multimetallic sulfide (Figure d), FeCoMoPB amorphous nanoplates (Figure e,f), and 2D amorphous DNA nanosheet (DNS)-templated amorphous Cu nanosheets (DNS/CuNSs) have been obtained (Figure g) …”

Section: Methods For the Controllable Synthesis Of Amorphous Nanomate...mentioning

confidence: 99%

“…The Ni-TaA metal complex is unstable in water and can be hydrolyzed to form amorphous sulfide nanosheets, where the valence state of Ni is +3 and named Ni(OH)S. The amorphous Ni(OH)S nanosheets formed in situ have good OER and urea oxidation reaction (UOR) properties. Moreover, amorphous multimetallic sulfide (Figure d), FeCoMoPB amorphous nanoplates (Figure e,f), and 2D amorphous DNA nanosheet (DNS)-templated amorphous Cu nanosheets (DNS/CuNSs) have been obtained (Figure g) …”

Section: Methods For the Controllable Synthesis Of Amorphous Nanomate...mentioning

confidence: 99%

Section: Methods For the Controllable Synthesis Of Amorphous Nanomate...mentioning

confidence: 99%

“…Moreover, amorphous multimetallic sulfide (Figure 38d), 237 FeCoMoPB amorphous nanoplates (Figure 38e,f), 238 and 2D amorphous DNA nanosheet (DNS)-templated amorphous Cu nanosheets (DNS/CuNSs) have been obtained (Figure 35g). 239 Anisotropic growth and stability of ultrathin planar structures are the key to realizing 2D metal nanosheets. Metallic nanomaterials prepared by wet chemical processes are usually covered with organic surfactants.…”

Section: Synthesis Of 2d Amorphous Nanomaterialsmentioning

confidence: 99%

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Recent Progress of Amorphous Nanomaterials

Kang

Yang

et al. 2023

Chem. Rev.

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Amorphous materials are metastable solids with only short-range order at the atomic scale, which results from local intermolecular chemical bonding. The lack of long-range order typical of crystals endows amorphous nanomaterials with unconventional and intriguing structural features, such as isotropic atomic environments, abundant surface dangling bonds, highly unsaturated coordination, etc. Because of these features and the ensuing modulation in electronic properties, amorphous nanomaterials display potential for practical applications in different areas. Motivated by these elements, here we provide an overview of the unique structural features, the general synthetic methods, and the potential for applications covered by contemporary research in amorphous nanomaterials. Furthermore, we discussed the possible theoretical mechanism for amorphous nanomaterials, examining how the unique structural properties and electronic configurations contribute to their exceptional performance. In particular, the structural benefits of amorphous nanomaterials as well as their enhanced electrocatalytic, optical, and mechanical properties, thereby clarifying the structure−function relationships, are highlighted. Finally, a perspective on the preparation and utilization of amorphous nanomaterials to establish mature systems with a superior hierarchy for various applications is introduced, and an outlook for future challenges and opportunities at the frontiers of this rapidly advancing field is proposed.

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Amorphous Copper‐Based Nanoparticles with Clusterization‐Triggered Phosphorescence for Ultrasensing 2,4,6‐Trinitrotoluene

et al. 2023

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Amorphous metal-based nanostructures have attracted great attention recently due to their facilitative electron transfer and abundant reactive sites, whereas it remains enigmatic as to whether amorphous copper-based nanoparticles (CuNPs) can be achieved. Here, for synthesizing amorphous CuNPs, glutathione is adopted as a ligand to inhibit the nucleation and crystallization process via its electrostatic repulsion. By subtly tailoring the solvent polarity, not only can amorphous glutathione-functionalized CuNPs (GSH-CuNPs) with phosphorescent performance be achieved after transferring the non-conjugation of GSH ligand to through-space conjugation, namely clusterization-triggered emission, but also the phosphorescence-off of GSH-CuNPs toward 2,4,6-trinitrotoluene (TNT) can be realized by the photoinduced electron-transfer process through the hydrogen bond channel, which is established between carboxyl and amino groups of GSH-CuNPs with the nitryl group of TNT. Benefitting from the intrinsic superiorities of the amorphous CuNPs, desired phosphorescence and detection performances of GSH-CuNPs toward airborne TNT microparticulates are undoubtedly realized, including high quantum yield (13.22%), excellent specificity in 33 potential interferents, instantaneous response, and ultralow detection limit (1.56 pg). The present GSH-CuNPs are expected to stretch amorphous metal-based nanostructures and deepen the insights into amorphous materials for optical detection.

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Micron-Scale Fabrication of Ultrathin Amorphous Copper Nanosheets Templated by DNA Scaffolds

Cited by 15 publications

References 81 publications

Copper Nanosheet-Based Wash-Free Fluorescence Imaging of Cancer Cells

Copper Nanosheet-Based Wash-Free Fluorescence Imaging of Cancer Cells

Recent Progress of Amorphous Nanomaterials

Amorphous Copper‐Based Nanoparticles with Clusterization‐Triggered Phosphorescence for Ultrasensing 2,4,6‐Trinitrotoluene

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