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Tian J, Peng Q, Shen Y, Liu X, Li D, Li J, Guo S, Meng C, Xiao Y. Chondroitin sulphate modified MoS 2 nanoenzyme with multifunctional activities for treatment of Alzheimer's disease. Int J Biol Macromol 2024; 266:131425. [PMID: 38583830 DOI: 10.1016/j.ijbiomac.2024.131425] [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] [Received: 01/12/2024] [Revised: 03/18/2024] [Accepted: 04/04/2024] [Indexed: 04/09/2024]
Abstract
Nano-MoS2 exhibit oxidoreductase-like activities, and has been shown to effectively eliminate excessive intracellular ROS and inhibit Aβ aggregation, thus demonstrating promising potential for anti-Alzheimer's disease (anti-AD) intervention. However, the low water dispersibility and high toxicity of nano-MoS2 limits its further application. In this study, we developed a chondroitin sulphate (CS)-modified MoS2 nanoenzyme (CS@MoS2) by harnessing the excellent biocompatibility of CS and the exceptional activities of nano-MoS2 to explore its potential in anti-AD research. Promisingly, CS@MoS2 significantly inhibited Aβ1-40 aggregation and prevented toxic injury in SH-SY5Y cells caused by Aβ1-40. In addition, CS@MoS2 protected these cells from oxidative stress damage by regulating ROS production, as well as promoting the activities of SOD and GSH-Px. CS@MoS2 also modulated the intracellular Ca2+ imbalance and downregulated Tau hyperphosphorylation by activating GSK-3β. CS@MoS2 suppressed p-NF-κB (p65) translocation to the nucleus by inhibiting MAPK phosphorylation, and modulated the expression of downstream anti- and proinflammatory cytokines. Owing to its multifunctional activities, CS@MoS2 effectively improved spatial learning, memory, and anxiety in D-gal/AlCl3-induced AD mice. Taken together, these results indicate that CS@MoS2 has significant potential for improving the therapeutic efficacy of the prevention and treatment of AD, while also presenting a novel framework for the application of nanoenzymes.
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Affiliation(s)
- Jialei Tian
- School of Pharmaceutical Sciences & Institute of Materia Medica, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan 250117, Shandong, China; Shandong Institute of Brain Science and Brain-inspired Research, Jinan 250117, Shandong, China
| | - Qian Peng
- School of Pharmaceutical Sciences & Institute of Materia Medica, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan 250117, Shandong, China; Shandong Institute of Brain Science and Brain-inspired Research, Jinan 250117, Shandong, China
| | - Yuzhen Shen
- School of Pharmaceutical Sciences & Institute of Materia Medica, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan 250117, Shandong, China; Shandong Institute of Brain Science and Brain-inspired Research, Jinan 250117, Shandong, China
| | - Xuan Liu
- Department of Hematology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, China
| | - Delong Li
- School of Pharmaceutical Sciences & Institute of Materia Medica, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan 250117, Shandong, China
| | - Jian Li
- School of Pharmaceutical Sciences & Institute of Materia Medica, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan 250117, Shandong, China; Shandong Institute of Brain Science and Brain-inspired Research, Jinan 250117, Shandong, China
| | - Shuyuan Guo
- School of Pharmaceutical Sciences & Institute of Materia Medica, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan 250117, Shandong, China; Shandong Institute of Brain Science and Brain-inspired Research, Jinan 250117, Shandong, China
| | - Caicai Meng
- The Second Affiliated Hospital, Shandong First Medical University and Shandong Academy of Medical Sciences, Taian 271000, Shandong, China.
| | - Yuliang Xiao
- The Second Affiliated Hospital, Shandong First Medical University and Shandong Academy of Medical Sciences, Taian 271000, Shandong, China.
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Jomova K, Alomar SY, Alwasel SH, Nepovimova E, Kuca K, Valko M. Several lines of antioxidant defense against oxidative stress: antioxidant enzymes, nanomaterials with multiple enzyme-mimicking activities, and low-molecular-weight antioxidants. Arch Toxicol 2024; 98:1323-1367. [PMID: 38483584 DOI: 10.1007/s00204-024-03696-4] [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: 01/01/2024] [Accepted: 01/31/2024] [Indexed: 03/27/2024]
Abstract
Reactive oxygen species (ROS) and reactive nitrogen species (RNS) are well recognized for playing a dual role, since they can be either deleterious or beneficial to biological systems. An imbalance between ROS production and elimination is termed oxidative stress, a critical factor and common denominator of many chronic diseases such as cancer, cardiovascular diseases, metabolic diseases, neurological disorders (Alzheimer's and Parkinson's diseases), and other disorders. To counteract the harmful effects of ROS, organisms have evolved a complex, three-line antioxidant defense system. The first-line defense mechanism is the most efficient and involves antioxidant enzymes such as superoxide dismutase (SOD), catalase (CAT), and glutathione peroxidase (GPx). This line of defense plays an irreplaceable role in the dismutation of superoxide radicals (O2•-) and hydrogen peroxide (H2O2). The removal of superoxide radicals by SOD prevents the formation of the much more damaging peroxynitrite ONOO- (O2•- + NO• → ONOO-) and maintains the physiologically relevant level of nitric oxide (NO•), an important molecule in neurotransmission, inflammation, and vasodilation. The second-line antioxidant defense pathway involves exogenous diet-derived small-molecule antioxidants. The third-line antioxidant defense is ensured by the repair or removal of oxidized proteins and other biomolecules by a variety of enzyme systems. This review briefly discusses the endogenous (mitochondria, NADPH, xanthine oxidase (XO), Fenton reaction) and exogenous (e.g., smoking, radiation, drugs, pollution) sources of ROS (superoxide radical, hydrogen peroxide, hydroxyl radical, peroxyl radical, hypochlorous acid, peroxynitrite). Attention has been given to the first-line antioxidant defense system provided by SOD, CAT, and GPx. The chemical and molecular mechanisms of antioxidant enzymes, enzyme-related diseases (cancer, cardiovascular, lung, metabolic, and neurological diseases), and the role of enzymes (e.g., GPx4) in cellular processes such as ferroptosis are discussed. Potential therapeutic applications of enzyme mimics and recent progress in metal-based (copper, iron, cobalt, molybdenum, cerium) and nonmetal (carbon)-based nanomaterials with enzyme-like activities (nanozymes) are also discussed. Moreover, attention has been given to the mechanisms of action of low-molecular-weight antioxidants (vitamin C (ascorbate), vitamin E (alpha-tocopherol), carotenoids (e.g., β-carotene, lycopene, lutein), flavonoids (e.g., quercetin, anthocyanins, epicatechin), and glutathione (GSH)), the activation of transcription factors such as Nrf2, and the protection against chronic diseases. Given that there is a discrepancy between preclinical and clinical studies, approaches that may result in greater pharmacological and clinical success of low-molecular-weight antioxidant therapies are also subject to discussion.
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Affiliation(s)
- Klaudia Jomova
- Department of Chemistry, Faculty of Natural Sciences, Constantine The Philosopher University in Nitra, Nitra, 949 74, Slovakia
| | - Suliman Y Alomar
- Doping Research Chair, Zoology Department, College of Science, King Saud University, 11451, Riyadh, Saudi Arabia
| | - Saleh H Alwasel
- Zoology Department, College of Science, King Saud University, 11451, Riyadh, Saudi Arabia
| | - Eugenie Nepovimova
- Department of Chemistry, Faculty of Sciences, University of Hradec Kralove, 50005, Hradec Kralove, Czech Republic
| | - Kamil Kuca
- Department of Chemistry, Faculty of Sciences, University of Hradec Kralove, 50005, Hradec Kralove, Czech Republic
- Biomedical Research Center, University Hospital Hradec Kralove, Hradec Kralove, Czech Republic
| | - Marian Valko
- Faculty of Chemical and Food Technology, Slovak University of Technology, 812 37, Bratislava, Slovakia.
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Zhang F, Liu J, Chen Z, Wang E, Li C, Cheng J, Shen J, Xu Z. Multienzyme cascades analysis of α-glucosidase by oxygen deficient MoO 3-x. Anal Chim Acta 2024; 1293:342271. [PMID: 38331555 DOI: 10.1016/j.aca.2024.342271] [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] [Received: 11/14/2023] [Revised: 01/03/2024] [Accepted: 01/19/2024] [Indexed: 02/10/2024]
Abstract
BACKGROUND Recently, the enzymatic cascade reactions during the cellular process are widely used for fabricating robust biosensors and they have attracted extensive attention in analyzing various clinical biomarkers. The enzymatic cascades analysis is commonly based on the peroxidase (POD)/oxidase coupled system. However, the requirement of harsh acidic environment, poor stability and interference from the oxidase further limit their analytical practicability. Herein, novel chromogenic nanomaterials with H2O2 sensitive features are urgently required to replace the POD nanozyme in enzymatic cascades based bioanalysis. RESULTS Herein, oxygen deficient MoO3-x with H2O2 sensitive features and near-infrared (NIR) absorption band have been ultra-fast synthesized and utilized for the enzymatic cascades analysis of α-Glucosidase's activity, and inhibitors screening. With the addition of 4-nitrophenyl-α-d-glucopyranoside, the simultaneous presence of α-Glucosidase and glucose oxidase (GOx) would fade their dark blue color and decrease the NIR absorption. The α-Glucosidase's activity can be analyzed by the absorption at 770 nm, and their limit of detection is 8 × 10-5 U/mL, indicating the superior performance of the proposed colorimetric assay. Moreover, this proposed α-Glucosidase assay is further utilized for inhibitors screening. Moreover, the activity of α-Glucosidase can also be analyzed by the smartphone and microplate reader through the agarose-based colorimetric portable kit. SIGNIFICANCE This MoO3-x involved enzymatic cascades assay would facilitate for the development of bio-analysis related to H2O2 generation or consumption. Moreover, this bio-analysis strategy will contribute to the development of other H2O2 sensitive chromogenic nanomaterials for the analysis of certain biomolecules and biological enzymes.
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Affiliation(s)
- Fengxian Zhang
- National & Local Joint Engineering Research Center of High-throughput Drug Screening Technology, College of Health Science and Engineering, School of Materials Science & Engineering, Hubei University, Wuhan, 430062, PR China
| | - Jiawei Liu
- National & Local Joint Engineering Research Center of High-throughput Drug Screening Technology, College of Health Science and Engineering, School of Materials Science & Engineering, Hubei University, Wuhan, 430062, PR China
| | - Zhi Chen
- National & Local Joint Engineering Research Center of High-throughput Drug Screening Technology, College of Health Science and Engineering, School of Materials Science & Engineering, Hubei University, Wuhan, 430062, PR China
| | - Erjing Wang
- National & Local Joint Engineering Research Center of High-throughput Drug Screening Technology, College of Health Science and Engineering, School of Materials Science & Engineering, Hubei University, Wuhan, 430062, PR China
| | - Cao Li
- National & Local Joint Engineering Research Center of High-throughput Drug Screening Technology, College of Health Science and Engineering, School of Materials Science & Engineering, Hubei University, Wuhan, 430062, PR China
| | - Jiaji Cheng
- National & Local Joint Engineering Research Center of High-throughput Drug Screening Technology, College of Health Science and Engineering, School of Materials Science & Engineering, Hubei University, Wuhan, 430062, PR China.
| | - Jie Shen
- Shenzhen Key Laboratory of Spine Surgery, Department of Spine Surgery, Peking University Shenzhen Hospital, Shenzhen, PR China.
| | - Ziqiang Xu
- National & Local Joint Engineering Research Center of High-throughput Drug Screening Technology, College of Health Science and Engineering, School of Materials Science & Engineering, Hubei University, Wuhan, 430062, PR China.
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Li L, Zhang C, Zhang Y, Chen S, Shan S, Wu T, Niu Y, Xu Y. Single substrate-functionalized molybdenum oxide nanozyme for specific colorimetric monitoring of xanthine oxidase activity. Mikrochim Acta 2024; 191:99. [PMID: 38228947 DOI: 10.1007/s00604-023-06149-4] [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: 09/14/2023] [Accepted: 12/11/2023] [Indexed: 01/18/2024]
Abstract
Xanthine-functionalized molybdenum oxide nanodots (X-MoO3-x NDs) with peroxidase (POD)-like activity were developed for selective, sensitive, and facile colorimetric quantification of xanthine oxidase (XO). Xanthine functionalization can not only be favorable for the successful nanozyme preparation, but also for the specific recognition of XO as well as the simultaneous generation of hydrogen peroxide, which was subsequently transformed into hydroxyl radical to oxidize the chromogenic reagent based on the POD-like catalysis. Under the optimized conditions, the colorimetric biosensing platform was established for XO assay without addition of further substrates, showing good linearity relationship between absorbance difference (ΔA) and XO concentrations in the range 0.05-0.5 U/mL (R2 = 0.998) with a limit of detection (LOD) of 0.019 U/mL. The quantification of XO occurs in 25 min, which is superior to the previously reported and commercial XO assays. The proposed method has been successfully used in the assay of human serum samples, showing its high potential in the field of clinical monitoring.
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Affiliation(s)
- Limin Li
- Institute of Biomedical Engineering, College of Life Sciences, School of Tourism and Geography Sciences, Qingdao University, Qingdao, 266071, China
| | - Cai Zhang
- Institute of Biomedical Engineering, College of Life Sciences, School of Tourism and Geography Sciences, Qingdao University, Qingdao, 266071, China
| | - Yifan Zhang
- The Affiliated Hospital of Qingdao University, Qingdao, 266003, China
| | - Shengnan Chen
- Children's Hospital Capital Institute of Pediatrics, Beijing, 100020, China
| | - Shuo Shan
- The Second Affiliated Hospital of Hainan Medical University, Haikou, 570311, China
| | - Tianming Wu
- Institute of Biomedical Engineering, College of Life Sciences, School of Tourism and Geography Sciences, Qingdao University, Qingdao, 266071, China
| | - Yusheng Niu
- Institute of Biomedical Engineering, College of Life Sciences, School of Tourism and Geography Sciences, Qingdao University, Qingdao, 266071, China.
| | - Yuanhong Xu
- Institute of Biomedical Engineering, College of Life Sciences, School of Tourism and Geography Sciences, Qingdao University, Qingdao, 266071, China.
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Botchway BOA, Liu X, Zhou Y, Fang M. Biometals in Alzheimer disease: emerging therapeutic and diagnostic potential of molybdenum and iodine. J Transl Med 2023; 21:351. [PMID: 37244993 DOI: 10.1186/s12967-023-04220-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2023] [Accepted: 05/20/2023] [Indexed: 05/29/2023] Open
Abstract
The current ageing trend of the world population has, in part, accounted for Alzheimer disease (AD) being a public health issue in recent times. Although some progress has been made in clarifying AD-related pathophysiological mechanisms, effective intervention is still elusive. Biometals are indispensable to normal physiological functions of the human body-for example, neurogenesis and metabolism. However, their association with AD remains highly controversial. Copper (Cu) and zinc (Zn) are biometals that have been investigated at great length in relation to neurodegeneration, whereas less attention has been afforded to other trace biometals, such as molybdenum (Mo), and iodine. Given the above context, we reviewed the limited number of studies that have evidenced various effects following the usage of these two biometals in different investigative models of AD. Revisiting these biometals via thorough investigations, along with their biological mechanisms may present a solid foundation for not only the development of effective interventions, but also as diagnostic agents for AD.
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Affiliation(s)
- Benson O A Botchway
- Department of Neurology, Children's Hospital of Zhejiang University School of Medicine, National Clinical Research Centre for Child Health, Hangzhou, 310052, China
- Pharmacy Department, Bupa Cromwell Hospital, Kensington, London, SW5 0TU, UK
| | - Xuehong Liu
- Department of Histology and Embryology, Medical College, Shaoxing University, Shaoxing, Zhejiang, China
| | - Yu Zhou
- Department of Histology and Embryology, Medical College, Shaoxing University, Shaoxing, Zhejiang, China
| | - Marong Fang
- Department of Neurology, Children's Hospital of Zhejiang University School of Medicine, National Clinical Research Centre for Child Health, Hangzhou, 310052, China.
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MoS2 quantum dots based on lipid drug delivery system for combined therapy against Alzheimer's disease. J Drug Deliv Sci Technol 2023. [DOI: 10.1016/j.jddst.2023.104324] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/05/2023]
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Tao Z, Wang J, Wu H, Hu J, Li L, Zhou Y, Zheng Q, Zha L, Zha Z. Renal Clearable Mo-Based Polyoxometalate Nanoclusters: A Promising Radioprotectant against Ionizing Irradiation. ACS APPLIED MATERIALS & INTERFACES 2023; 15:11474-11484. [PMID: 36702809 DOI: 10.1021/acsami.2c19282] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
In response to diffused ionizing radiation damage throughout the body caused by nuclear leaks and inaccurate radiotherapy, radioprotectants with considerable free radical scavenging capacities, along with negligible adverse effects, are highly regarded. Herein, unlike being performed as toxic chemotherapeutic drug candidates, molybdenum-based polyoxometalate nanoclusters (Mo-POM NCs) were developed as a non-toxic potent radioprotectant with impressive free radical scavenging capacities for ionizing radiation protection. In comparison to the clinically used radioprotectant drug amifostine (AM), the as-prepared Mo-POM NCs exhibited effective shielding capacity by virtue of their antioxidant properties resulting from a valence shift of molybdenum ions, alleviating not only ionizing radiation-induced DNA damage but also disruption of the radiation-sensitive hematopoietic system. More encouragingly, without trouble with long-term retention in the body, ultra-small sized Mo-POM NCs prepared by the mimetic Folin-Ciocalteu assay can be removed from the body through the renal-urinary pathway and the hepato-enteral excretory system after completing the mission of radiation protection. This work broadened the biological applications of metal-based POM chemotherapeutic drugs to act as a neozoic radioprotectant.
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Affiliation(s)
- Zhenchao Tao
- The First Affiliated Hospital of USTC, School of Life Sciences and Medicine, University of Science and Technology of China, Hefei230031, P. R. China
- Department of Radiation Oncology, Anhui Provincial Cancer Hospital, Hefei230031, P. R. China
| | - Jingguo Wang
- School of Food and Biological Engineering, Hefei University of Technology, Hefei230009, P. R. China
| | - Haitao Wu
- School of Food and Biological Engineering, Hefei University of Technology, Hefei230009, P. R. China
| | - Jiaru Hu
- The First Affiliated Hospital of USTC, School of Life Sciences and Medicine, University of Science and Technology of China, Hefei230031, P. R. China
| | - Lu Li
- The First Affiliated Hospital of USTC, School of Life Sciences and Medicine, University of Science and Technology of China, Hefei230031, P. R. China
| | - Yuhang Zhou
- International Immunology Center, Anhui Agricultural University, Hefei230036, P. R. China
| | - Qi Zheng
- International Immunology Center, Anhui Agricultural University, Hefei230036, P. R. China
| | - Lisha Zha
- International Immunology Center, Anhui Agricultural University, Hefei230036, P. R. China
| | - Zhengbao Zha
- School of Food and Biological Engineering, Hefei University of Technology, Hefei230009, P. R. China
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Sen SK, Munshi MR, Kumar A, Mortuza AA, Manir MS, Islam MA, Hossain MN, Hossain MK. Structural, optical, magnetic, and enhanced antibacterial properties of hydrothermally synthesized Sm-incorporating α-MoO 3 2D-layered nanoplates. RSC Adv 2022; 12:34584-34600. [PMID: 36545635 PMCID: PMC9716563 DOI: 10.1039/d2ra05304g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2022] [Accepted: 11/24/2022] [Indexed: 12/04/2022] Open
Abstract
In this study, we have synthesized pristine and [0.5,1.5, and 2.5] M% samarium (Sm)-incorporating α-MoO3 2D-layered nanoplates utilizing a facile hydrothermal process, and investigated the physical properties along with antibacterial effectiveness. X-ray diffraction (XRD) patterns confirmed the single-phase, stable orthorhombic polycrystalline structure of the as-prepared samples. The crystallite size, lattice strain, and dislocation density were measured using both Debye-Scherrer (D-S) and Williamson-Hall (W-H) techniques. Both pristine and Sm-incorporating α-MoO3 samples showed two-dimensional (2D) layered nanoplate-type surface morphology, revealed by field emission scanning electron microscopy (FE-SEM) images. Energy dispersive X-ray spectroscopy (EDS) confirmed the presence of Sm contents in the α-MoO3 matrix. After Sm incorporation in α-MoO3, the different functional groups as well as vibrational groups were observed by Fourier-transform infrared (FTIR) spectroscopy and Raman spectroscopy analyses, respectively. The optical band gaps were measured from UV-vis diffuse reflectance spectroscopy (DRS) by employing the Kubelka-Munk formula and interestingly it is found that the bandgap energy (E g) gradually decreased from 2.96 to 2.83 eV with the increment of Sm content. When compared to pristine α-MoO3, the Sm-incorporating samples experienced a steady improvement in room temperature ferromagnetic (RTFM) behavior as Sm content increased, as measured by hysteresis loops. The antibacterial activities of both samples were assessed against Gram-positive: Staphylococcus aureus (S. aureus), and Gram-negative: Escherichia coli (E. coli) and Salmonella enteritidis (S. enteritidis) bacteria by the agar well diffusion method and enhanced antibacterial activity was observed as the Sm concentration increased, compared to pristine nanoplates. The obtained results suggest that the synthesized Sm-incorporating α-MoO3 2D-layered nanoplate could be a potential antibacterial agent.
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Affiliation(s)
- Sapan Kumar Sen
- Institute of Electronics, Atomic Energy Research Establishment, Bangladesh Atomic Energy CommissionDhaka 1349Bangladesh
| | - M. Rajib Munshi
- Department of Physics, European University of BangladeshDhaka 1216Bangladesh
| | - Arup Kumar
- Materials Science Division, Atomic Energy Centre, Bangladesh Atomic Energy CommissionDhaka 1000Bangladesh
| | - A. A. Mortuza
- Institute of Electronics, Atomic Energy Research Establishment, Bangladesh Atomic Energy CommissionDhaka 1349Bangladesh
| | - M. S. Manir
- Institute of Radiation and Polymer Technology, Atomic Energy Research Establishment, Bangladesh Atomic Energy CommissionDhaka 1349Bangladesh
| | - M. A. Islam
- Department of Physics, University of BarishalBarishal 8200Bangladesh
| | - M. N. Hossain
- Department of Glass & Ceramic Engineering, Bangladesh University of Engineering & TechnologyDhaka 1000Bangladesh
| | - M. Khalid Hossain
- Institute of Electronics, Atomic Energy Research Establishment, Bangladesh Atomic Energy CommissionDhaka 1349Bangladesh
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Li H, Zhang Y, Ding J, Wu T, Cai S, Zhang W, Cai R, Chen C, Yang R. Synthesis of carbon quantum dots for application of alleviating amyloid-β mediated neurotoxicity. Colloids Surf B Biointerfaces 2022; 212:112373. [PMID: 35101826 DOI: 10.1016/j.colsurfb.2022.112373] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2021] [Revised: 01/21/2022] [Accepted: 01/24/2022] [Indexed: 12/18/2022]
Abstract
Alzheimer's disease (AD) has been an intractable neurodegenerative disease among the elderly in the worldwide. One of the important pathogenic factors in AD is the aggregation of amyloid-β 1-42 (Aβ42) in AD patients' brain. Inhibition of Aβ peptide aggregation is considered as one of the effective approaches against AD. Herein, a pulsed laser ablation (PLA) method is used to fabricate ultra-small carbon quantum dots (C-QDs) with uniform size. The reduced Aβ42 aggregation by the C-QDs was confirmed by transmission electron microscopy (TEM), thioflavin T assay and circular dichroism (CD) spectroscopy. The results of cell viability experiments showed that the presence of the C-QDs could significantly reduce the cytotoxicity of Aβ42. Furthermore, in vivo studies demonstrate that C-QDs can decrease Aβ42 deposits and promote the biological activity of an AD model of Caenorhabditis elegans CL2006. This work demonstrates the viability of using ultrasmall C-QDs to inhibit amyloid-β aggregation and alleviate amyloid-β mediated neurotoxicity.
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Affiliation(s)
- Haolin Li
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Center of Materials Science and Optoelectronics Engineering, National Center for Nanoscience and Technology, University of Chinese Academy of Sciences, Beijing 100190, China; Sino-Danish College, Sino-Danish Center for Education and Research, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yufei Zhang
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Center of Materials Science and Optoelectronics Engineering, National Center for Nanoscience and Technology, University of Chinese Academy of Sciences, Beijing 100190, China; Sino-Danish College, Sino-Danish Center for Education and Research, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jianwei Ding
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Center of Materials Science and Optoelectronics Engineering, National Center for Nanoscience and Technology, University of Chinese Academy of Sciences, Beijing 100190, China
| | - Ting Wu
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Center of Materials Science and Optoelectronics Engineering, National Center for Nanoscience and Technology, University of Chinese Academy of Sciences, Beijing 100190, China
| | - Shuangfei Cai
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Center of Materials Science and Optoelectronics Engineering, National Center for Nanoscience and Technology, University of Chinese Academy of Sciences, Beijing 100190, China
| | - Wei Zhang
- Institute of Applied Physics and Computational Mathematics, Beijing 100088, China.
| | - Rong Cai
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Center of Materials Science and Optoelectronics Engineering, National Center for Nanoscience and Technology, University of Chinese Academy of Sciences, Beijing 100190, China
| | - Chunying Chen
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Center of Materials Science and Optoelectronics Engineering, National Center for Nanoscience and Technology, University of Chinese Academy of Sciences, Beijing 100190, China.
| | - Rong Yang
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Center of Materials Science and Optoelectronics Engineering, National Center for Nanoscience and Technology, University of Chinese Academy of Sciences, Beijing 100190, China; Sino-Danish College, Sino-Danish Center for Education and Research, University of Chinese Academy of Sciences, Beijing 100049, China.
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Duan G, Wen L, Sun X, Wei Z, Duan R, Zeng J, Cui J, Liu C, Yu Z, Xie X, Gao M. Healing Diabetic Ulcers with MoO 3-X Nanodots Possessing Intrinsic ROS-Scavenging and Bacteria-Killing Capacities. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2022; 18:e2107137. [PMID: 34927361 DOI: 10.1002/smll.202107137] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/18/2021] [Revised: 11/29/2021] [Indexed: 06/14/2023]
Abstract
Diabetic ulcers (DUs) appearing as chronic wounds are difficult to heal due to the oxidative stress in the wound microenvironment and their high susceptibility to bacterial infection. A routine treatment combining surgical debridement with anti-infection therapy is widely used for treating DUs in the clinic, but hardly offers a satisfying wound healing outcome. It is known that a long-term antibiotic treatment may also lead to the drug resistance of pathogens. To address these challenges, new strategies combining both reactive oxygen species (ROS) scavenging and bacterial sterilization have been proposed for fighting against DUs. Following this idea, oxygen deficient molybdenum-based nanodots (MoO3-X ) for healing the DUs are reported. The ROS scavenging ability of MoO3-X nanodots is investigated and the antibacterial property of the nanodots is also demonstrated. The systematic cell and animal experimental results indicate that the MoO3-X nanodots can effectively reduce inflammation, promote epithelial cell regeneration, accelerate angiogenesis, and facilitate DUs recovery. Most importantly, they present excellent capacity to diminish infection of methicillin-resistant Staphylococcus aureus, manifesting the potent application prospect of MoO3-X nanodots for diabetic wound therapy.
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Affiliation(s)
- Guangxin Duan
- Center for Molecular Imaging and Nuclear Medicine, State Key Laboratory of Radiation Medicine and Protection, School for Radiological and Interdisciplinary Sciences (RAD-X), Soochow University, Collaborative Innovation Center of Radiological Medicine of Jiangsu Higher Education Institutions, Suzhou, 215123, China
| | - Ling Wen
- Department of Radiology, The First Affiliated Hospital of Soochow University, Suzhou, 215000, China
- Institute of Medical Imaging, Soochow University, Suzhou, 215000, China
| | - Xingwei Sun
- Department of Intervention, The Second Affiliated Hospital of Soochow University, Suzhou, 215004, China
| | - Zhuxin Wei
- Department of Radiology, The Dushu Lake Hospital Affiliated to Soochow University, Suzhou, 215123, China
| | - Ruixue Duan
- Center for Molecular Imaging and Nuclear Medicine, State Key Laboratory of Radiation Medicine and Protection, School for Radiological and Interdisciplinary Sciences (RAD-X), Soochow University, Collaborative Innovation Center of Radiological Medicine of Jiangsu Higher Education Institutions, Suzhou, 215123, China
| | - Jiangfeng Zeng
- Center for Molecular Imaging and Nuclear Medicine, State Key Laboratory of Radiation Medicine and Protection, School for Radiological and Interdisciplinary Sciences (RAD-X), Soochow University, Collaborative Innovation Center of Radiological Medicine of Jiangsu Higher Education Institutions, Suzhou, 215123, China
| | - Jiabin Cui
- Center for Molecular Imaging and Nuclear Medicine, State Key Laboratory of Radiation Medicine and Protection, School for Radiological and Interdisciplinary Sciences (RAD-X), Soochow University, Collaborative Innovation Center of Radiological Medicine of Jiangsu Higher Education Institutions, Suzhou, 215123, China
| | - Chunyi Liu
- Center for Molecular Imaging and Nuclear Medicine, State Key Laboratory of Radiation Medicine and Protection, School for Radiological and Interdisciplinary Sciences (RAD-X), Soochow University, Collaborative Innovation Center of Radiological Medicine of Jiangsu Higher Education Institutions, Suzhou, 215123, China
| | - Zepeng Yu
- Department of Intervention, The Second Affiliated Hospital of Soochow University, Suzhou, 215004, China
| | - Xiaofang Xie
- Department of Clinical Laboratory, The Second Affiliated Hospital of Soochow University, Suzhou, 215004, China
| | - Mingyuan Gao
- Center for Molecular Imaging and Nuclear Medicine, State Key Laboratory of Radiation Medicine and Protection, School for Radiological and Interdisciplinary Sciences (RAD-X), Soochow University, Collaborative Innovation Center of Radiological Medicine of Jiangsu Higher Education Institutions, Suzhou, 215123, China
- Clinical Translation Center of State Key Lab, The Second Affiliated Hospital of Soochow University, Suzhou, 215004, China
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11
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Abstract
Nanozyme is a series of nanomaterials with enzyme-mimetic activities that can proceed with the catalytic reactions of natural enzymes. In the field of biomedicine, nanozymes are capturing tremendous attention due to their high stability and low cost. Enzyme-mimetic activities of nanozymes can be regulated by multiple factors, such as the chemical state of metal ion, pH, hydrogen peroxide (H2O2), and glutathione (GSH) level, presenting great promise for biomedical applications. Over the past decade, multi-functional nanozymes have been developed for various biomedical applications. To promote the understandings of nanozymes and the development of novel and multifunctional nanozymes, we herein provide a comprehensive review of the nanozymes and their applications in the biomedical field. Nanozymes with versatile enzyme-like properties are briefly overviewed, and their mechanism and application are discussed to provide understandings for future research. Finally, underlying challenges and prospects of nanozymes in the biomedical frontier are discussed in this review.
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12
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Liu Q, Zhang A, Wang R, Zhang Q, Cui D. A Review on Metal- and Metal Oxide-Based Nanozymes: Properties, Mechanisms, and Applications. NANO-MICRO LETTERS 2021; 13:154. [PMID: 34241715 PMCID: PMC8271064 DOI: 10.1007/s40820-021-00674-8] [Citation(s) in RCA: 161] [Impact Index Per Article: 53.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/17/2021] [Accepted: 05/31/2021] [Indexed: 05/19/2023]
Abstract
Since the ferromagnetic (Fe3O4) nanoparticles were firstly reported to exert enzyme-like activity in 2007, extensive research progress in nanozymes has been made with deep investigation of diverse nanozymes and rapid development of related nanotechnologies. As promising alternatives for natural enzymes, nanozymes have broadened the way toward clinical medicine, food safety, environmental monitoring, and chemical production. The past decade has witnessed the rapid development of metal- and metal oxide-based nanozymes owing to their remarkable physicochemical properties in parallel with low cost, high stability, and easy storage. It is widely known that the deep study of catalytic activities and mechanism sheds significant influence on the applications of nanozymes. This review digs into the characteristics and intrinsic properties of metal- and metal oxide-based nanozymes, especially emphasizing their catalytic mechanism and recent applications in biological analysis, relieving inflammation, antibacterial, and cancer therapy. We also conclude the present challenges and provide insights into the future research of nanozymes constituted of metal and metal oxide nanomaterials.
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Affiliation(s)
- Qianwen Liu
- Institute of Nano Biomedicine and Engineering, Shanghai Engineering Research Center for Intelligent Diagnosis and Treatment Instrument, Department of Instrument Science and Engineering, School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, 800 Dongchuan RD, Shanghai, 200240, People's Republic of China
- Institute of Nano Biomedicine, National Engineering Research Center for Nanotechnology, 28 Jiangchuan Easternroad, Shanghai, 200241, People's Republic of China
| | - Amin Zhang
- Institute of Nano Biomedicine and Engineering, Shanghai Engineering Research Center for Intelligent Diagnosis and Treatment Instrument, Department of Instrument Science and Engineering, School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, 800 Dongchuan RD, Shanghai, 200240, People's Republic of China.
- Institute of Nano Biomedicine, National Engineering Research Center for Nanotechnology, 28 Jiangchuan Easternroad, Shanghai, 200241, People's Republic of China.
| | - Ruhao Wang
- Institute of Nano Biomedicine and Engineering, Shanghai Engineering Research Center for Intelligent Diagnosis and Treatment Instrument, Department of Instrument Science and Engineering, School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, 800 Dongchuan RD, Shanghai, 200240, People's Republic of China
- Institute of Nano Biomedicine, National Engineering Research Center for Nanotechnology, 28 Jiangchuan Easternroad, Shanghai, 200241, People's Republic of China
| | - Qian Zhang
- Institute of Nano Biomedicine and Engineering, Shanghai Engineering Research Center for Intelligent Diagnosis and Treatment Instrument, Department of Instrument Science and Engineering, School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, 800 Dongchuan RD, Shanghai, 200240, People's Republic of China
- Institute of Nano Biomedicine, National Engineering Research Center for Nanotechnology, 28 Jiangchuan Easternroad, Shanghai, 200241, People's Republic of China
| | - Daxiang Cui
- Institute of Nano Biomedicine and Engineering, Shanghai Engineering Research Center for Intelligent Diagnosis and Treatment Instrument, Department of Instrument Science and Engineering, School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, 800 Dongchuan RD, Shanghai, 200240, People's Republic of China.
- Institute of Nano Biomedicine, National Engineering Research Center for Nanotechnology, 28 Jiangchuan Easternroad, Shanghai, 200241, People's Republic of China.
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13
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Zhao H, Zhang R, Yan X, Fan K. Superoxide dismutase nanozymes: an emerging star for anti-oxidation. J Mater Chem B 2021; 9:6939-6957. [PMID: 34161407 DOI: 10.1039/d1tb00720c] [Citation(s) in RCA: 126] [Impact Index Per Article: 42.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
Superoxide dismutases (SODs) are a group of metalloenzymes that catalyze the dismutation of superoxide radicals (O2˙-) into hydrogen peroxide (H2O2) and oxygen (O2). As the first line of defense against reactive oxygen species (ROS)-mediated damage, SODs are expected to play an important role in the treatment of oxidative stress-related diseases. However, the clinical applications of SODs have been severely limited by their structural instability and high cost. Compared with natural enzymes, nanozymes, nanomaterials with enzyme-like activity, are more stable, and economical, can be easily modified and their activities can be adjusted. Due to their excellent characteristics, nanozymes have attracted widespread attention in recent years and are expected to become effective substitutes for natural enzymes in many application fields. Importantly, some nanozymes with SOD-like activity have been developed and proved to have a mitigating effect on diseases caused by oxidative stress. These studies on SOD-like nanozymes provide a feasible strategy for breaking through the dilemma of SOD clinical applications. However, at present, the specific catalytic mechanism of SOD-like nanozymes is still unclear, and many important issues need to be resolved. Although there are many comprehensive reviews to introduce the overall situation of the nanozyme field, the research on SOD-like nanozymes still lacks a systematic review. From the structure and mechanism of natural SOD enzymes to the structure and regulation of SOD-like nanozymes, and then to the measurement and application of nanozymes, this review systematically summarizes the recent progress in SOD-like nanozymes. The existing shortcomings and possible future research hotspots in the development of SOD-like nanozymes are summarized and prospected. We hope that this review would provide ideas and inspirations for further research on the catalytic mechanism and rational design of SOD-like nanozymes.
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Affiliation(s)
- Hanqing Zhao
- CAS Engineering Laboratory for Nanozyme, Key Laboratory of Protein and Peptide Pharmaceutical, Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China. and University of Chinese Academy of Sciences, Beijing 101408, China
| | - Ruofei Zhang
- CAS Engineering Laboratory for Nanozyme, Key Laboratory of Protein and Peptide Pharmaceutical, Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China. and University of Chinese Academy of Sciences, Beijing 101408, China
| | - Xiyun Yan
- CAS Engineering Laboratory for Nanozyme, Key Laboratory of Protein and Peptide Pharmaceutical, Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China. and University of Chinese Academy of Sciences, Beijing 101408, China and Nanozyme Medical Center, School of Basic Medical Sciences, Zhengzhou University, Zhengzhou 450052, Henan, China
| | - Kelong Fan
- CAS Engineering Laboratory for Nanozyme, Key Laboratory of Protein and Peptide Pharmaceutical, Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China. and University of Chinese Academy of Sciences, Beijing 101408, China and Nanozyme Medical Center, School of Basic Medical Sciences, Zhengzhou University, Zhengzhou 450052, Henan, China
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14
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Zu Y, Yao H, Wang Y, Yan L, Gu Z, Chen C, Gao L, Yin W. The age of bioinspired molybdenum‐involved nanozymes: Synthesis, catalytic mechanisms, and biomedical applications. VIEW 2021. [DOI: 10.1002/viw.20200188] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
Affiliation(s)
- Yan Zu
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety Institute of High Energy Physics and National Center for Nanoscience and Technology Chinese Academy of Sciences Beijing China
| | - Huiqin Yao
- School of Basic Medicine Ningxia Medical University Yinchuan China
| | - Yifan Wang
- School of Basic Medicine Ningxia Medical University Yinchuan China
| | - Liang Yan
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety Institute of High Energy Physics and National Center for Nanoscience and Technology Chinese Academy of Sciences Beijing China
| | - Zhanjun Gu
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety Institute of High Energy Physics and National Center for Nanoscience and Technology Chinese Academy of Sciences Beijing China
| | - Chunying Chen
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety Institute of High Energy Physics and National Center for Nanoscience and Technology Chinese Academy of Sciences Beijing China
| | - Lizeng Gao
- Key Laboratory of Protein and Peptide Pharmaceuticals, Institute of Biophysics Chinese Academy of Sciences Beijing China
| | - Wenyan Yin
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety Institute of High Energy Physics and National Center for Nanoscience and Technology Chinese Academy of Sciences Beijing China
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15
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Liu C, Yan Y, Mao Y, He W. Photo-enhanced enzyme-like activities of BiOBr/PtRu hybrid nanostructures. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART C, TOXICOLOGY AND CARCINOGENESIS 2020; 38:299-314. [PMID: 33356923 DOI: 10.1080/26896583.2020.1814081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
The combination of semiconductor and metal nanocomponents represents an effective way for design of photocatalysts with high efficiency. It is expected that this strategy can be applied to design photo-regulated nanozymes. To prove this concept, BiOBr/PtRu hybrid nanostructures have been fabricated by depositing PtRu nanoparticles on BiOBr nanosheets through a templating co-reduction method. The formation of BiOBr/PtRu hybrid nanostructures was confirmed by TEM, XRD and XPS. BiOBr/PtRu hybrid nanostructures exhibited excellent enzyme-like activities (peroxidase, oxidase, ferroxidase) as well as the ability to scavenge DPPH free radicals. When exposed to light irradiation (λ > 420 nm), it was found that BiOBr/PtRu hybrid nanostructures not only exhibit improved photocatalytic degradation, but also exhibit enhanced peroxidase- and oxidase-like activity. Due to the photocatalytic effect and the higher charge separation and utilization efficiency caused by heterojunctions, a light-enhanced enzyme-like activity mechanism was proposed. These results will be of value to design high efficiency nanozymes using light for biological and environmental applications.
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Affiliation(s)
- Chuang Liu
- College of Material Science and Engineering, Zhengzhou University, Zhengzhou, P. R. China
- Key Laboratory of Micro-Nano Materials for Energy Storage and Conversion of Henan Province, Institute of Surface Micro and Nano Materials, College of Chemical and Materials Engineering, Xuchang University, Xuchang, Henan, P. R. China
| | - Yingying Yan
- Key Laboratory of Micro-Nano Materials for Energy Storage and Conversion of Henan Province, Institute of Surface Micro and Nano Materials, College of Chemical and Materials Engineering, Xuchang University, Xuchang, Henan, P. R. China
| | - Yuanyang Mao
- Key Laboratory of Micro-Nano Materials for Energy Storage and Conversion of Henan Province, Institute of Surface Micro and Nano Materials, College of Chemical and Materials Engineering, Xuchang University, Xuchang, Henan, P. R. China
| | - Weiwei He
- Key Laboratory of Micro-Nano Materials for Energy Storage and Conversion of Henan Province, Institute of Surface Micro and Nano Materials, College of Chemical and Materials Engineering, Xuchang University, Xuchang, Henan, P. R. China
- Henan Joint International Research Laboratory of Nanomaterials for Energy and Catalysis, Xuchang University, Xuchang, Henan, China
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16
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Xiao SJ, Wang LZ, Yuan MY, Huang XH, Ding JH, Zhang L. Peroxidase‐Mimetic and Fenton‐Like Activities of Molybdenum Oxide Quantum Dots. ChemistrySelect 2020. [DOI: 10.1002/slct.202001566] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Sai Jin Xiao
- Jiangxi Key Laboratory of Mass Spectrometry and Instrumentation East China University of Technology (ECUT) Nanchang 330013 P. R. China
- School of Chemistry Biology and Material Science ECUT Nanchang 330013 P. R. China
| | - Li Zhi Wang
- School of Chemistry Biology and Material Science ECUT Nanchang 330013 P. R. China
| | - Ming Yue Yuan
- School of Chemistry Biology and Material Science ECUT Nanchang 330013 P. R. China
| | - Xiao Huan Huang
- School of Chemistry Biology and Material Science ECUT Nanchang 330013 P. R. China
| | - Jian Hua Ding
- Jiangxi Key Laboratory of Mass Spectrometry and Instrumentation East China University of Technology (ECUT) Nanchang 330013 P. R. China
- School of Chemistry Biology and Material Science ECUT Nanchang 330013 P. R. China
| | - Li Zhang
- College of Chemistry Nanchang University Nanchang 330031 P. R. China
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17
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Binda A, Murano C, Rivolta I. Innovative Therapies and Nanomedicine Applications for the Treatment of Alzheimer's Disease: A State-of-the-Art (2017-2020). Int J Nanomedicine 2020; 15:6113-6135. [PMID: 32884267 PMCID: PMC7434571 DOI: 10.2147/ijn.s231480] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2020] [Accepted: 07/08/2020] [Indexed: 12/11/2022] Open
Abstract
The field of nanomedicine is constantly expanding. Since the first work dated in 1999, almost 28 thousand articles have been published, and more and more are published every year: just think that only in the last five years 20,855 have come out (source PUBMED) including original research and reviews. The goal of this review is to present the current knowledge about nanomedicine in Alzheimer’s disease, a widespread neurodegenerative disorder in the over 60 population that deeply affects memory and cognition. Thus, after a brief introduction on the pathology and on the state-of-the-art research for NPs passing the BBB, special attention is placed to new targets that can enter the interest of nanoparticle designers and to new promising therapies. The authors performed a literature review limited to the last three years (2017–2020) of available studies with the intention to present only novel formulations or approaches where at least in vitro studies have been performed. This choice was made because, while limiting the sector to nanotechnology applied to Alzheimer, an organic census of all the relevant news is difficult to obtain.
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Affiliation(s)
- Anna Binda
- School of Medicine and Surgery, University of Milano-Bicocca, Monza (MB) 20900, Italy
| | - Carmen Murano
- School of Medicine and Surgery, University of Milano-Bicocca, Monza (MB) 20900, Italy
| | - Ilaria Rivolta
- School of Medicine and Surgery, Nanomedicine Center NANOMIB, NeuroMI Milan Center for Neuroscience, University of Milano-Bicocca, Monza (MB) 20900, Italy
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18
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Khalid M, Hassani S, Abdollahi M. Metal-induced oxidative stress: an evidence-based update of advantages and disadvantages. CURRENT OPINION IN TOXICOLOGY 2020. [DOI: 10.1016/j.cotox.2020.05.006] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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19
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Jiao S, Liang X, Zhang R, Zhong S, Zheng Y, Wang S, Liu M, Hu X, Yin Y. Facile Construction of Microgel based Biomimetic Glutathione Peroxidase with Temperature Responsive Catalytic Activity. ChemistrySelect 2019. [DOI: 10.1002/slct.201903025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Shufei Jiao
- Qinzhou Key Laboratory of Biowaste Resources for Selenium-enriched Functional UtilizationCollege of Petroleum and Chemical EngineeringBeibu Gulf University Qinzhou 535011 China
| | - Xingtang Liang
- Qinzhou Key Laboratory of Biowaste Resources for Selenium-enriched Functional UtilizationCollege of Petroleum and Chemical EngineeringBeibu Gulf University Qinzhou 535011 China
| | - Ruirui Zhang
- Qinzhou Key Laboratory of Biowaste Resources for Selenium-enriched Functional UtilizationCollege of Petroleum and Chemical EngineeringBeibu Gulf University Qinzhou 535011 China
| | - Shuming Zhong
- Qinzhou Key Laboratory of Biowaste Resources for Selenium-enriched Functional UtilizationCollege of Petroleum and Chemical EngineeringBeibu Gulf University Qinzhou 535011 China
| | - Yunying Zheng
- Qinzhou Key Laboratory of Biowaste Resources for Selenium-enriched Functional UtilizationCollege of Petroleum and Chemical EngineeringBeibu Gulf University Qinzhou 535011 China
| | - Shuangshuang Wang
- Qinzhou Key Laboratory of Biowaste Resources for Selenium-enriched Functional UtilizationCollege of Petroleum and Chemical EngineeringBeibu Gulf University Qinzhou 535011 China
| | - Min Liu
- Qinzhou Key Laboratory of Biowaste Resources for Selenium-enriched Functional UtilizationCollege of Petroleum and Chemical EngineeringBeibu Gulf University Qinzhou 535011 China
| | - Xiaoxi Hu
- Qinzhou Key Laboratory of Biowaste Resources for Selenium-enriched Functional UtilizationCollege of Petroleum and Chemical EngineeringBeibu Gulf University Qinzhou 535011 China
| | - Yanzhen Yin
- Qinzhou Key Laboratory of Biowaste Resources for Selenium-enriched Functional UtilizationCollege of Petroleum and Chemical EngineeringBeibu Gulf University Qinzhou 535011 China
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20
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Kamoun O, Mami A, Amara MA, Vidu R, Amlouk M. Nanostructured Fe,Co-Codoped MoO₃ Thin Films. MICROMACHINES 2019; 10:mi10020138. [PMID: 30791584 PMCID: PMC6412870 DOI: 10.3390/mi10020138] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/05/2019] [Revised: 02/13/2019] [Accepted: 02/15/2019] [Indexed: 11/30/2022]
Abstract
Molybdenum oxide (MoO3) and Fe,Co-codoped MoO3 thin films obtained by spray pyrolysis have been in-depth investigated to understand the effect of Co and Fe codoping on MoO3 thin films. The effect of Fe and Co on the structural, morphological and optical properties of MoO3 thin films have been studied using X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM) and energy-dispersive X-ray analysis (EDAX), optical and photoluminescence (PL) spectroscopy, and electropyroelectric methods. The XRD patterns demonstrated the formation of orthorhombic α-MoO3 by spray pyrolysis. SEM characterization has shown an increase in roughness of MoO3 thin films by Fe and Co doping. Optical reflectance and transmittance measurements have shown an increase in optical band gap with the increase in Fe and Co contents. Thermal conductivity and thermal diffusivity of Fe,Co-doped MoO3 were 24.10–25.86 Wm−1K−1 and 3.80 × 10−6–5.15 × 10−6 m2s−1, respectively. MoO3 thin films have shown PL emission. Doping MoO3 with Fe and Co increases emission in the visible range due to an increase number of chemisorbed oxygen atoms. The photodegradation of an aqueous solution of methylene blue (MB) depended on the content of the codoping elements (Fe,Co). The results showed that a degradation efficiency of 90% was observed after 60 min for MoO3: Fe 2%-Co 1%, while the degradation efficiency was about 35% for the undoped MoO3 thin film.
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Affiliation(s)
- Olfa Kamoun
- Department of Physics, University of Tunis El Manar, 2092 Tunis, Tunisia.
| | - Amel Mami
- UR Photothermy, Photothermal Laboratory, Preparatory Institute for Engineering Studies of Nabeul (IPEIN), 8000 Merazka, Nabeul, Tunisia.
| | | | - Ruxandra Vidu
- Department of Electrical Engineering and Computer Science, University of California, Davis, CA 95616, USA.
- Faculty of Materials Sciences, University Politehnica of Bucharest, UPB-ECOMET, 011061 Bucharest, Romania.
| | - Mosbah Amlouk
- Department of Physics, University of Tunis El Manar, 2092 Tunis, Tunisia.
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21
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Jiao S, Zhang R, Yin Y, Zhong S, Liu Z, Zheng Y, Hu X, Liang X, Huang Z. One-pot synthesis of biomimetic glutathione peroxidase with temperature responsive catalytic behaviors. RSC Adv 2019; 9:28814-28822. [PMID: 35529614 PMCID: PMC9071214 DOI: 10.1039/c9ra05775g] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2019] [Accepted: 08/30/2019] [Indexed: 01/23/2023] Open
Abstract
Excessive reactive oxygen free radicals (ROS) are the main cause of various oxidative diseases. It is of great significance to develop antioxidant drugs that can intelligently regulate free radical concentrations. The biomimetic simulation of glutathione peroxidase (GPx) can provide an important theoretical basis for the development of antioxidant drugs. In order to explore a simple and efficient strategy for constructing biomimetic GPx, a microgel biomimetic GPx (PNTegel) with temperature responsive catalytic activity was prepared by a one-pot synthesis method. The PNTegel, with typical enzymatic catalytic characteristics, exhibited a maximum catalytic activity at 37 °C (υ0 = 11.51 mM min−1). The investigation of the catalytic mechanism of PNTegel suggested that the binding of different hydrophobic substrates to PNTegel was altered by the change of hydrophobicity of poly(N-isopropylacrylamide) (PNIPAM) in the microgel scaffold of PNTegel during the temperature response process. The change of hydrophobicity was the main factor for regulating the catalytic activity of PNTegel, which resulted in a temperature responsive catalytic behavior of PNTegel. This new strategy for the simple and efficient construction of biomimetic GPx by a one-pot method provides important theoretical support for exploring the preparation of highly effective antioxidant drugs. A microgel-based biomimetic glutathione peroxidase with temperature responsive catalytic behavior is synthesized by integrating atom transfer radical polymerization (ATRP) technology into one-pot synthesis.![]()
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Affiliation(s)
- Shufei Jiao
- Qinzhou Key Laboratory of Biowaste Resources for Selenium-enriched Functional Utilization
- College of Petroleum and Chemical Engineering
- Beibu Gulf University
- Qinzhou 535011
- China
| | - Ruirui Zhang
- Qinzhou Key Laboratory of Biowaste Resources for Selenium-enriched Functional Utilization
- College of Petroleum and Chemical Engineering
- Beibu Gulf University
- Qinzhou 535011
- China
| | - Yanzhen Yin
- Qinzhou Key Laboratory of Biowaste Resources for Selenium-enriched Functional Utilization
- College of Petroleum and Chemical Engineering
- Beibu Gulf University
- Qinzhou 535011
- China
| | - Shuming Zhong
- Qinzhou Key Laboratory of Biowaste Resources for Selenium-enriched Functional Utilization
- College of Petroleum and Chemical Engineering
- Beibu Gulf University
- Qinzhou 535011
- China
| | - Zijie Liu
- Qinzhou Key Laboratory of Biowaste Resources for Selenium-enriched Functional Utilization
- College of Petroleum and Chemical Engineering
- Beibu Gulf University
- Qinzhou 535011
- China
| | - Yunying Zheng
- Qinzhou Key Laboratory of Biowaste Resources for Selenium-enriched Functional Utilization
- College of Petroleum and Chemical Engineering
- Beibu Gulf University
- Qinzhou 535011
- China
| | - Xiaoxi Hu
- Qinzhou Key Laboratory of Biowaste Resources for Selenium-enriched Functional Utilization
- College of Petroleum and Chemical Engineering
- Beibu Gulf University
- Qinzhou 535011
- China
| | - Xingtang Liang
- Qinzhou Key Laboratory of Biowaste Resources for Selenium-enriched Functional Utilization
- College of Petroleum and Chemical Engineering
- Beibu Gulf University
- Qinzhou 535011
- China
| | - Zuqiang Huang
- School of Chemistry and Chemical Engineering
- Guangxi University
- Nanning 530004
- China
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