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Yang W, Leng T, Miao W, Cao X, Chen H, Xu F, Fang Y. Photo-Switchable Peroxidase/Catalase-Like Activity of Carbon Quantum Dots. Angew Chem Int Ed Engl 2024; 63:e202403581. [PMID: 38514603 DOI: 10.1002/anie.202403581] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2024] [Revised: 03/20/2024] [Accepted: 03/21/2024] [Indexed: 03/23/2024]
Abstract
Nanozymes possess multi-enzyme activities over the natural enzymes, which produce multi-pathway synergistic effects for varies of biomedical applications. Unfortunately, their multi-enzyme activities are in fighting, significantly reducing the synergistic effects. Dynamic regulation of their multi-enzyme activities is the bottleneck for intelligent therapies. Herein, we construct a novel oxygen-nitrogen functionalized carbon quantum dots (O/N-CQDs) with peroxidase-like (Reactive oxygen species (ROS) producer) activity. Interestingly, the peroxidase-like activity can be reversibly converted to catalase-like (ROS scavenger) activity under visible light irradiation. It is found that both the peroxidase/catalase-like activity of O/N-CQDs can be precisely manipulated by the light intensity. The mechanism of switchable enzyme activities is attributed to the polarization of quinoid nitrogen in polyaniline (PANI) precursor retained on O/N-CQDs under visible light, which consumes the ROS to produce O2 and H2O. As a proof-of-concept demonstration, we are able to non-intrusively up and down regulate the ROS level in cells successfully by simply switching off and on the light respectively, potentially facilitating the precise medicine based on the development of the disease. Indeed, the photo-switchable peroxidase/catalase-like activity of O/N-CQDs opens a non-invasive strategy for better manipulations of the multi-activity of nanozymes, promising their wider and more intelligent biomedical applications.
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Affiliation(s)
- Wei Yang
- Key Laboratory of Cardiovascular & Cerebrovascular Medicine, School of Pharmacy, Nanjing Medical University, 101 Longmian Avenue, Nanjing, Jiangsu, China.
| | - Tianchi Leng
- Key Laboratory of Cardiovascular & Cerebrovascular Medicine, School of Pharmacy, Nanjing Medical University, 101 Longmian Avenue, Nanjing, Jiangsu, China.
| | - Weicheng Miao
- Key Laboratory of Cardiovascular & Cerebrovascular Medicine, School of Pharmacy, Nanjing Medical University, 101 Longmian Avenue, Nanjing, Jiangsu, China.
| | - Xiao Cao
- Key Laboratory of Cardiovascular & Cerebrovascular Medicine, School of Pharmacy, Nanjing Medical University, 101 Longmian Avenue, Nanjing, Jiangsu, China.
| | - Haoran Chen
- Key Laboratory of Cardiovascular & Cerebrovascular Medicine, School of Pharmacy, Nanjing Medical University, 101 Longmian Avenue, Nanjing, Jiangsu, China.
| | - Feifei Xu
- Key Laboratory of Cardiovascular & Cerebrovascular Medicine, School of Pharmacy, Nanjing Medical University, 101 Longmian Avenue, Nanjing, Jiangsu, China.
| | - Yimin Fang
- Key Laboratory of Cardiovascular & Cerebrovascular Medicine, School of Pharmacy, Nanjing Medical University, 101 Longmian Avenue, Nanjing, Jiangsu, China.
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Xu K, Cui Y, Guan B, Qin L, Feng D, Abuduwayiti A, Wu Y, Li H, Cheng H, Li Z. Nanozymes with biomimetically designed properties for cancer treatment. NANOSCALE 2024; 16:7786-7824. [PMID: 38568434 DOI: 10.1039/d4nr00155a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/26/2024]
Abstract
Nanozymes, as a type of nanomaterials with enzymatic catalytic activity, have demonstrated tremendous potential in cancer treatment owing to their unique biomedical properties. However, the heterogeneity of tumors and the complex tumor microenvironment pose significant challenges to the in vivo catalytic efficacy of traditional nanozymes. Drawing inspiration from natural enzymes, scientists are now using biomimetic design to build nanozymes from the ground up. This approach aims to replicate the key characteristics of natural enzymes, including active structures, catalytic processes, and the ability to adapt to the tumor environment. This achieves selective optimization of nanozyme catalytic performance and therapeutic effects. This review takes a deep dive into the use of these biomimetically designed nanozymes in cancer treatment. It explores a range of biomimetic design strategies, from structural and process mimicry to advanced functional biomimicry. A significant focus is on tweaking the nanozyme structures to boost their catalytic performance, integrating them into complex enzyme networks similar to those in biological systems, and adjusting functions like altering tumor metabolism, reshaping the tumor environment, and enhancing drug delivery. The review also covers the applications of specially designed nanozymes in pan-cancer treatment, from catalytic therapy to improved traditional methods like chemotherapy, radiotherapy, and sonodynamic therapy, specifically analyzing the anti-tumor mechanisms of different therapeutic combination systems. Through rational design, these biomimetically designed nanozymes not only deepen the understanding of the regulatory mechanisms of nanozyme structure and performance but also adapt profoundly to tumor physiology, optimizing therapeutic effects and paving new pathways for innovative cancer treatment.
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Affiliation(s)
- Ke Xu
- School of Medicine, Tongji University, Shanghai 200092, China
- Department of Thoracic Surgery, Shanghai Pulmonary Hospital, School of Medicine, Tongji University, Shanghai 200433, China.
| | - Yujie Cui
- Shanghai Key Laboratory for R&D and Application of Metallic Functional Materials, Institute of New Energy for Vehicles, School of Materials Science and Engineering, Tongji University, Shanghai 201804, China.
| | - Bin Guan
- Center Laboratory, Jinshan Hospital, Fudan University, Shanghai 201508, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, China
| | - Linlin Qin
- Department of Thoracic Surgery, Shanghai Pulmonary Hospital, School of Medicine, Tongji University, Shanghai 200433, China.
- Department of Thoracic Surgery, Shanghai Fourth People's Hospital, School of Medicine, Tongji University, Shanghai 200081, China
| | - Dihao Feng
- School of Art, Shaoxing University, Shaoxing 312000, Zhejiang, China
| | - Abudumijiti Abuduwayiti
- School of Medicine, Tongji University, Shanghai 200092, China
- Department of Thoracic Surgery, Shanghai Pulmonary Hospital, School of Medicine, Tongji University, Shanghai 200433, China.
| | - Yimu Wu
- School of Medicine, Tongji University, Shanghai 200092, China
- Department of Thoracic Surgery, Shanghai Pulmonary Hospital, School of Medicine, Tongji University, Shanghai 200433, China.
| | - Hao Li
- Department of Organ Transplantation, Xiang'an Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen 361005, Fujian, China
| | - Hongfei Cheng
- Shanghai Key Laboratory for R&D and Application of Metallic Functional Materials, Institute of New Energy for Vehicles, School of Materials Science and Engineering, Tongji University, Shanghai 201804, China.
| | - Zhao Li
- Department of Thoracic Surgery, Shanghai Pulmonary Hospital, School of Medicine, Tongji University, Shanghai 200433, China.
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Shome A, Ali S, Haydar MS, Sarkar K, Roy S, Adhikary P, Roy MN. Synthesis of Spherical Mn 2O 3 Nanozymes from Different Green Precursors for their Innovative Applications in Catalytic Properties and Bioactivity. ACS Biomater Sci Eng 2024; 10:1734-1742. [PMID: 38330433 DOI: 10.1021/acsbiomaterials.3c00608] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/10/2024]
Abstract
Here, spherical Mn2O3 nanozymes were synthesized via a one-step green method using different green precursors, and their physicochemical properties and biological activities were monitored with various green precursors. Powder X-ray diffraction (PXRD) was performed to determine the crystalline properties and phases involved in the formation of cubic Mn2O3 nanozymes. The synthesized nanozymes were spherical and examined by SEM and FESEM studies. All of the samples synthesized using different green precursors exhibited different sizes but similar spherical shapes. Moreover, all green-synthesized nanozymes catalyzed the oxidation reaction of the chromogenic substrate 3,3'5,5' tetramethylbenzidine (TMB) in the absence of H2O2, and A2 (lemon-mediated Mn2O3 nanozymes), which the followed Michaelis-Menten kinetics, showed the best activity. Therefore, A2 (lemon-mediated nanozyme) showed oxidase-mimicking activity with distinct Km and Vmax values calculated by the Lineweaver-Burk plot. Furthermore, the current nanozymes demonstrated a significant ability to kill both Gram-negative and Gram-positive bacteria as well as effectively destroy biofilms under physiological conditions. Moreover, the green-mediated nanozymes also displayed ROS-scavenging activity. Our nanozymes exhibited scavenging activity toward OH and O2-• radicals and metal chelation activity, which were investigated colorimetrically. Therefore, these nanozymes might be used as effective antibacterial agents and also for the consumption of reactive oxygen species.
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Affiliation(s)
- Ankita Shome
- Department of Chemistry, University of North Bengal, Darjeeling 734013, West Bengal, India
| | - Salim Ali
- Department of Chemistry, University of North Bengal, Darjeeling 734013, West Bengal, India
| | - Md Salman Haydar
- Department of Botany, University of North Bengal, Siliguri 734013, West Bengal, India
| | - Kushankur Sarkar
- Department of Botany, University of North Bengal, Siliguri 734013, West Bengal, India
| | - Swarnendu Roy
- Department of Botany, University of North Bengal, Siliguri 734013, West Bengal, India
| | - Prakriti Adhikary
- Department of Physics, University of North Bengal, Darjeeling 734013, West Bengal, India
| | - Mahendra Nath Roy
- Department of Chemistry, University of North Bengal, Darjeeling 734013, West Bengal, India
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Chen Y, Rong C, Gao W, Luo S, Guo Y, Gu Y, Yang G, Xu W, Zhu C, Qu LL. Ag-MXene as peroxidase-mimicking nanozyme for enhanced bacteriocide and cholesterol sensing. J Colloid Interface Sci 2024; 653:540-550. [PMID: 37729761 DOI: 10.1016/j.jcis.2023.09.097] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Revised: 09/06/2023] [Accepted: 09/15/2023] [Indexed: 09/22/2023]
Abstract
Reactive oxygen species (ROS) are ideal alternative antibacterial reagents for rapid and effective sterilization. Although a variety of ROS-based antimicrobial strategies have been developed, many are still limited by their inefficiency. Herein, we report the synthesis of the Ag-MXene nanozyme, which have superior peroxidase-like activity for antibacterial applications. As a result, Ag-MXene nanozyme can efficiently increase the level of intracellular ROS, converting H2O2 into hydroxyl radicals that effectively kill both Gram-negative and Gram-positive bacteria and disrupting the bacterial biofilm formation. Moreover, a sensitive and selective colorimetric biosensor was constructed for assaying cholesterol based on the Ag-MXene's prominent peroxidase-mimicking activity and the cholesterol oxidase cascade reaction. The biosensor exhibits high performance with a linear cholesterol detection range of 2-800 μM, and a detection limit of 0.6 μM. Ag-MXene nanozyme can be used for the rapid detection of cholesterol in serum without complicated sample pretreatment. Collectively, it is conceivable that the proposed Ag-MXene nanozyme could be used as a biocide and as a cholesterol sensor. This study provides a broad prospect for the rapid detection and sterilization of MXene nanozymes in the biomedical field.
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Affiliation(s)
- Yu Chen
- School of Chemistry & Materials Science, Jiangsu Normal University, Xuzhou 221116, PR China
| | - Chengyu Rong
- School of Chemistry & Materials Science, Jiangsu Normal University, Xuzhou 221116, PR China
| | - Wenhui Gao
- School of Life Science, Jiangsu Normal University, Xuzhou, 221116, PR China
| | - Siyu Luo
- School of Chemistry & Materials Science, Jiangsu Normal University, Xuzhou 221116, PR China
| | - Yuxin Guo
- School of Chemistry & Materials Science, Jiangsu Normal University, Xuzhou 221116, PR China
| | - Yingqiu Gu
- School of Chemistry & Materials Science, Jiangsu Normal University, Xuzhou 221116, PR China
| | - Guohai Yang
- School of Chemistry & Materials Science, Jiangsu Normal University, Xuzhou 221116, PR China.
| | - Weiqing Xu
- National Key Laboratory of Green Pesticide, International Joint Research Center for Intelligent Biosensing Technology and Health, College of Chemistry, Central China Normal University, Wuhan, Hubei 430079, PR China
| | - Chengzhou Zhu
- National Key Laboratory of Green Pesticide, International Joint Research Center for Intelligent Biosensing Technology and Health, College of Chemistry, Central China Normal University, Wuhan, Hubei 430079, PR China
| | - Lu-Lu Qu
- School of Chemistry & Materials Science, Jiangsu Normal University, Xuzhou 221116, PR China.
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Ma X, He J, Liu Y, Bai X, Leng J, Zhao Y, Chen D, Wang J. Plant Photocatalysts: Photoinduced Oxidation and Reduction Abilities of Plant Leaf Ashes under Solar Light. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:2260. [PMID: 37570577 PMCID: PMC10421452 DOI: 10.3390/nano13152260] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/12/2023] [Revised: 08/03/2023] [Accepted: 08/04/2023] [Indexed: 08/13/2023]
Abstract
Plant leaf ashes were obtained via the high temperature calcination of the leaves of various plants, such as sugarcane, couchgrass, bracteata, garlic sprout, and the yellowish leek. Although the photosynthesis systems in plant leaves cannot exist after calcination, minerals in these ashes were found to exhibit photochemical activities. The samples showed solar light photocatalytic oxidation activities sufficient to degrade methylene blue dye. They were also shown to possess intrinsic dehydrogenase-like activities in reducing the colorless electron acceptor 2,3,5-triphenyltetrazolium chloride to a red formazan precipitate under solar light irradiation. The possible reasons behind these two unreported phenomena were also investigated. These ashes were characterized using a combination of physicochemical techniques. Moreover, our findings exemplify how the soluble and insoluble minerals in plant leaf ashes can be synergistically designed to yield next-generation photocatalysts. It may also lead to advances in artificial photosynthesis and photocatalytic dehydrogenase.
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Affiliation(s)
- Xiaoqian Ma
- School of Chemical Sciences & Technology, Yunnan University, Kunming 650091, China
| | - Jiao He
- School of Chemical Sciences & Technology, Yunnan University, Kunming 650091, China
| | - Yu Liu
- School of Materials and Energy, Yunnan University, Kunming 650091, China
| | - Xiaoli Bai
- School of Chemical Sciences & Technology, Yunnan University, Kunming 650091, China
| | - Junyang Leng
- School of Chemical Sciences & Technology, Yunnan University, Kunming 650091, China
| | - Yi Zhao
- School of Chemical Sciences & Technology, Yunnan University, Kunming 650091, China
| | - Daomei Chen
- School of Materials and Energy, Yunnan University, Kunming 650091, China
| | - Jiaqiang Wang
- School of Chemical Sciences & Technology, Yunnan University, Kunming 650091, China
- School of Materials and Energy, Yunnan University, Kunming 650091, China
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