Unraveling the Structure Transition and Peroxidase Mimic Activity of Copper Sites over Atomically Dispersed Copper‐Doped Carbonized Polymer Dots

Gao, Fucheng; Huang, Jian; Ruan, Ying; Li, Hui; Gong, Pengyu; Wang, Fenglong; Tang, Qunwei; Jiang, Yanyan

doi:10.1002/ange.202214042

Cited by 4 publications

(7 citation statements)

References 60 publications

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“…Similarly, Chl‐Cu also possesses a Cu porphyrin structure. Our previous research confirmed the successful preparation of Cu‐CDs using Chl‐Cu as the carbon source [19] …”

Section: Selection Of Suitable Ligands For Preparation Of Tmas‐doped Cdssupporting

confidence: 76%

“…Our previous research confirmed the successful preparation of Cu-CDs using Chl-Cu as the carbon source. [19]…”

Section: Selection Of Suitable Ligands For Preparation Of Tmas-doped Cdsmentioning

confidence: 99%

“…Additionally, Mn doping raises the carbonization degree of CDs and diminishes the oxidation extent of surface functional groups. Furthermore, to further investigate the binding configuration of TMAs in CDs and the impact of TMAs on the surface structure of CDs, and to obtain the formation mechanism of TMAs‐doped CDs, our research group selected CA‐Cu, glutamic acid copper (Glu‐Cu), and chlorophyll copper (Chl‐Cu) as precursors with initial structures of Cu‐O 4 , Cu‐N 2 C 2 , and Cu‐N 4 , respectively [19] . We confirmed that the coordination of Cu atoms in CA‐Cu‐CDs, Glu‐Cu‐CDs, and Chl‐Cu‐CDs was Cu‐C 4.2 , Cu‐N 2 C 2 , and Cu‐N 3.9 , respectively by X‐ray absorption near‐edge structure (XANES) and Fourier‐transformed extended X‐ray absorption fine structure spectra (FT‐EXAFS) techniques analysis (Figure 1b).…”

Section: The Formation Mechanism Of Tmas‐doped Cdsmentioning

confidence: 99%

“…Copyright 2022, Wiley‐VCH (b) The precise binding configuration of Cu atoms in CA‐Cu‐CDs, Glu‐Cu‐CDs and Chl‐Cu‐CDs, respectively. (c) The formation mechanism of Cu‐CDs in hydrothermal reaction [19] . Copyright 2023, Wiley‐VCH.…”

Section: The Formation Mechanism Of Tmas‐doped Cdsmentioning

confidence: 99%

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The Guidelines for the Design and Synthesis of Transition Metal Atom Doped Carbon Dots

Gao,

Liu,

Tang

et al. 2024

ChemBioChem

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Atoms doping is a practical approach to modulate the physicochemical properties of carbon dots (CDs) and thus has garnered increasing attention in recent years. Compared to non‐metal atoms, transition metal atoms (TMAs) possess more unoccupied orbitals and larger atomic radii. TMAs doping can significantly alter the electronic structure of CDs and bestow them with new intrinsic characteristics. TMAs‐doped CDs have exhibited widespread application potential as a new class of single‐atom‐based nanomaterials. However, challenges remain for the successful preparation and precise design of TMAs‐doped CDs. The key to successfully preparing TMA‐doped CDs lies in anchoring TMAs to the carbon precursors before the reaction. Herein, taking the formation mechanism of TMAs‐doped CDs as a starting point, we systematically summarized the ligands employed for synthesizing TMAs‐doped CDs and proposed the synthetic strategy involving multiple ligands. Additionally, we summarize the functional properties imparted to CDs by different TMA dopants to guide the design of TMA‐doped CDs with different functional characteristics. Finally, we describe the bottlenecks TMAs‐doped CDs face and provide an outlook on their future development.

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“…Similarly, Chl‐Cu also possesses a Cu porphyrin structure. Our previous research confirmed the successful preparation of Cu‐CDs using Chl‐Cu as the carbon source [19] …”

Section: Selection Of Suitable Ligands For Preparation Of Tmas‐doped Cdssupporting

confidence: 76%

“…Our previous research confirmed the successful preparation of Cu-CDs using Chl-Cu as the carbon source. [19]…”

Section: Selection Of Suitable Ligands For Preparation Of Tmas-doped Cdsmentioning

confidence: 99%

Section: The Formation Mechanism Of Tmas‐doped Cdsmentioning

confidence: 99%

Section: The Formation Mechanism Of Tmas‐doped Cdsmentioning

confidence: 99%

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The Guidelines for the Design and Synthesis of Transition Metal Atom Doped Carbon Dots

Gao,

Liu,

Tang

et al. 2024

ChemBioChem

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“…23 For instance, Cu-N x O y -C with different nitrogen coordination numbers has been reported recently to unveil the influence of LCE on H 2 O 2 detection. 24 Therefore, SACs can be regarded as among the most promising nanozymes for single-molecule detections.…”

Section: Introductionmentioning

confidence: 99%

Single‐atom metal‐nitrogen‐carbon catalysts energize single molecule detection for biosensing

Zhang

Chen

et al. 2023

InfoMat

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Biosensors featuring single molecule detection present huge opportunities as well as challenges in food safety inspection, disease diagnosis, and environmental monitoring. Single-molecule detection is largely lacking of high enough activity, precision molecule selectivity, and understanding in the exact operating mechanism. Single-atom catalysts (SACs), especially those metals-nitrogen-carbon that mimic the natural metalloenzyme structure, and with well-defined metal atom bond configurations, high level of molecular selectivity, and easy fabrication, endow single molecule detections with practical-use feasibilities. The recent advances in singleatom catalysts also present new pathways in the key mechanism understandings. In this short review, we will first visit the brief history and advantages of SACs that have been explored only recently for moleculescale biosensors, where they are analogous and also differentiated from those nanozymes and natural metalloenzymes. Their applications in electrochemical, photochemical, and photoelectrochemical sensors are then discussed comprehensively by focusing on the different molecule-scale sensing modes in achieving local coordination-modulated signal amplifications. Finally, we identify new opportunities and challenges faced by these SACs-based single molecule detections in the further development of biosensors.

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Hierarchical Co₂P/CoS₂@C@MoS₂ Composites with Hollow Cavity and Multiple Phases Toward Wideband Electromagnetic Wave Absorption

He,

Xu,

Shi

et al. 2023

Small

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The synergistic effect of hollow cavities and multiple hetero‐interfaces displays huge advantages in achieving lightweight and high‐efficient electromagnetic wave absorption, but still confronts huge challenges. Herein, hierarchical Co2P/CoS2@C@MoS2 composites via the self‐sacrificed strategy and a subsequent hydrothermal method have been successfully synthesized. Specifically, ZIF‐67 cores first act as the structural template to form core‐shell ZIF‐67@poly(cyclotriphosphazene‐co‐4,4′‐sulfonyldiphenol) (ZIF‐67@PZS) composites, which are converted into hollow Co2P@C shells with micro‐mesoporous characteristics because of the gradient structural stabilities and preferred coordination ability. The deposition of hierarchical MoS2 results in phase transition (Co2P→Co2P/CoS2), yielding the formation of hierarchical Co2P/CoS2@C@MoS2 composites with hollow cavities and multiple hetero‐interfaces. Benefiting from the cooperative advantages of hollow structure, extra N,P,S‐doped sources, lattice defects/vacancies, diverse incoherent interfaces, and hierarchical configurations, the composites deliver superior electromagnetic wave capability (−56.6 dB) and wideband absorption bandwidth (8.96 GHz) with 20 wt.% filler loading. This study provides a reliable and facile strategy for the precise construction of superior electromagnetic wave absorbents with efficient absorption attenuation.

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Unraveling the Structure Transition and Peroxidase Mimic Activity of Copper Sites over Atomically Dispersed Copper‐Doped Carbonized Polymer Dots

Cited by 4 publications

References 60 publications

The Guidelines for the Design and Synthesis of Transition Metal Atom Doped Carbon Dots

The Guidelines for the Design and Synthesis of Transition Metal Atom Doped Carbon Dots

Single‐atom metal‐nitrogen‐carbon catalysts energize single molecule detection for biosensing

Hierarchical Co₂P/CoS₂@C@MoS₂ Composites with Hollow Cavity and Multiple Phases Toward Wideband Electromagnetic Wave Absorption

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Unraveling the Structure Transition and Peroxidase Mimic Activity of Copper Sites over Atomically Dispersed Copper‐Doped Carbonized Polymer Dots

Cited by 4 publications

References 60 publications

The Guidelines for the Design and Synthesis of Transition Metal Atom Doped Carbon Dots

The Guidelines for the Design and Synthesis of Transition Metal Atom Doped Carbon Dots

Single‐atom metal‐nitrogen‐carbon catalysts energize single molecule detection for biosensing

Hierarchical Co2P/CoS2@C@MoS2 Composites with Hollow Cavity and Multiple Phases Toward Wideband Electromagnetic Wave Absorption

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Product

Resources

About

Hierarchical Co₂P/CoS₂@C@MoS₂ Composites with Hollow Cavity and Multiple Phases Toward Wideband Electromagnetic Wave Absorption