1
|
Xu K, Zhang P, Zhang Y, Zhang Y, Li L, Shi Y, Wen X, Xu Y. MoO xNWs with mechanical damage - oriented synergistic photothermal / photodynamic therapy for highly effective treating wound infections. J Colloid Interface Sci 2024; 660:235-245. [PMID: 38244492 DOI: 10.1016/j.jcis.2024.01.025] [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: 10/15/2023] [Revised: 12/29/2023] [Accepted: 01/04/2024] [Indexed: 01/22/2024]
Abstract
Reactive oxygen species (ROS)-based therapy has emerged as a promising antibacterial strategy. However, it faces the limitations of uncontrollable space-time release and excessive lipid peroxidation, which may lead to a series of metabolic disorders and decreased immune function. In this study, mechanical damage by molybdenum oxide nanowires (MoOxNWs) is introduced as a synergistic factor to enhance the photothermal and photodynamic effects for controllable and efficient antibacterial therapy. Through their sharp ends, the nanowires can effectively pierce and damage the bacterial cells, thus facilitating the entry of externally generated ROS into the cells. The ROS are generated via photodynamic effect of the nanowires under a mere 5 min of near-infrared light irradiation. This approach enhances the photothermal (by 27.3 %) and photodynamic properties of ROS generation. MoOxNWs (100 μg·mL-1) achieve sterilisation rates of 97.67 % for extended-spectrum β-lactamase-producing E. coli and 96.34 % for methicillin-resistant Staphylococcus aureus, which are comparable or even exceeding the efficacy of most MoOx-based antibacterial agents. Moreover, they exhibit good biocompatibility and low in vivo toxicity.
Collapse
Affiliation(s)
- Kaikai Xu
- Institute of Biomedical Engineering, College of Life Sciences, Qingdao University, 9 Qingdao 266071, China
| | - Pengfei Zhang
- Institute of Biomedical Engineering, College of Life Sciences, Qingdao University, 9 Qingdao 266071, China; Department of Urology, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Yan Zhang
- Institute of Biomedical Engineering, College of Life Sciences, Qingdao University, 9 Qingdao 266071, China
| | - Yanfang Zhang
- Institute of Biomedical Engineering, College of Life Sciences, Qingdao University, 9 Qingdao 266071, China
| | - Limin Li
- Institute of Biomedical Engineering, College of Life Sciences, Qingdao University, 9 Qingdao 266071, China
| | - Yanfeng Shi
- Institute of Biomedical Engineering, College of Life Sciences, Qingdao University, 9 Qingdao 266071, China
| | - Xueyun Wen
- Institute of Biomedical Engineering, College of Life Sciences, Qingdao University, 9 Qingdao 266071, China
| | - Yuanhong Xu
- Institute of Biomedical Engineering, College of Life Sciences, Qingdao University, 9 Qingdao 266071, China.
| |
Collapse
|
2
|
Ma T, Liu M, Sun J, Wu J, Zhao Z, Bai J, Fang Y, Jin X. N-doped molybdenum oxide quantum dots as fluorescent probes for the quantitative detection of copper ions in environmental samples. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2023; 15:6239-6244. [PMID: 37955159 DOI: 10.1039/d3ay01423a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/14/2023]
Abstract
A novel, sensitive, and selective fluorescence sensor based on N-doped Mo oxide quantum dots (N-MoOx QDs) was fabricated for the detection of Cu2+ ions in water. The presence of Cu2+ induced dynamic fluorescence quenching of the N-MoOx QDs. The sensing conditions were optimized to enhance selectivity and sensitivity. Under optimal conditions, the linear relationship between fluorescence response at 408 nm and Cu2+ concentration was determined. The linear range of this relationship was 1-100 μM. The limits of detection (LOD) and quantitation (LOQ) for Cu2+ were 0.78 μM and 2.34 μM, respectively. The method was successfully applied to detect Cu2+ in water samples with satisfactory sample recovery rates from 91.7 to 116.4%. The sensor exhibits high selectivity toward Cu2+, making it useful for environmental sample monitoring.
Collapse
Affiliation(s)
- Ting Ma
- State Key Laboratory of High-efficiency Utilization of Coal and Green Chemical Engineering, National Demonstration Center for Experimental Chemistry Education, School of Chemistry and Chemical Engineering, Ningxia University, Yinchuan, 750021, China.
- Tianjin Key Laboratory of Risk Assessment and Control Technology for Environment and Food Safety, Tianjin Institute of Environmental and Operational Medicine, Tianjin, 300050, China.
| | - Mingzhu Liu
- Tianjin Key Laboratory of Risk Assessment and Control Technology for Environment and Food Safety, Tianjin Institute of Environmental and Operational Medicine, Tianjin, 300050, China.
| | - Jingran Sun
- Tianjin Key Laboratory of Risk Assessment and Control Technology for Environment and Food Safety, Tianjin Institute of Environmental and Operational Medicine, Tianjin, 300050, China.
| | - Jin Wu
- Tianjin Key Laboratory of Risk Assessment and Control Technology for Environment and Food Safety, Tianjin Institute of Environmental and Operational Medicine, Tianjin, 300050, China.
| | - Zunquan Zhao
- Tianjin Key Laboratory of Risk Assessment and Control Technology for Environment and Food Safety, Tianjin Institute of Environmental and Operational Medicine, Tianjin, 300050, China.
| | - Jialei Bai
- Tianjin Key Laboratory of Risk Assessment and Control Technology for Environment and Food Safety, Tianjin Institute of Environmental and Operational Medicine, Tianjin, 300050, China.
| | - Yanjun Fang
- Tianjin Key Laboratory of Risk Assessment and Control Technology for Environment and Food Safety, Tianjin Institute of Environmental and Operational Medicine, Tianjin, 300050, China.
| | - Xiaoyong Jin
- State Key Laboratory of High-efficiency Utilization of Coal and Green Chemical Engineering, National Demonstration Center for Experimental Chemistry Education, School of Chemistry and Chemical Engineering, Ningxia University, Yinchuan, 750021, China.
| |
Collapse
|
3
|
Kateshiya MR, Desai ML, Malek NI, Kailasa SK. Advances in Ultra-small Fluorescence Nanoprobes for Detection of Metal Ions, Drugs, Pesticides and Biomarkers. J Fluoresc 2022; 33:775-798. [PMID: 36538145 DOI: 10.1007/s10895-022-03115-w] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2022] [Accepted: 12/07/2022] [Indexed: 12/24/2022]
Abstract
Identification of trace level chemical species (drugs, pesticides, metal ions and biomarkers) plays key role in environmental monitoring. Recently, fluorescence assay has shown significant advances in detecting of trace level drugs, pesticides, metal ions and biomarkers in real samples. Ultra-small nanostructure materials (metal nanoclusters (NCs), quantum dots (QDs) and carbon dots (CDs)) have been integrated with fluorescence spectrometer for sensitive and selective analysis of trace level target analytes in various samples including environmental and biological samples. This review summarizes the properties of metal NCs and ligand chemistry for the fabrication of metal NCs. We also briefly summarized the synthetic routes for the preparation of QDs and CDs. Advances of ultra-small fluorescent nanosensors (NCs, QDs and CDs) for sensing of metal ions, drugs, pesticides and biomarkers in various sample matrices are briefly discussed. Additionally, we discuss the recent challenges and future perspectives of ultra-small materials as fluorescent sensors for assaying of wide variety of target analytes in real samples.
Collapse
|
4
|
Hermawan A, Septiani NLW, Taufik A, Yuliarto B, Yin S. Advanced Strategies to Improve Performances of Molybdenum-Based Gas Sensors. NANO-MICRO LETTERS 2021; 13:207. [PMID: 34633560 PMCID: PMC8505593 DOI: 10.1007/s40820-021-00724-1] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/13/2021] [Accepted: 08/22/2021] [Indexed: 05/29/2023]
Abstract
Molybdenum-based materials have been intensively investigated for high-performance gas sensor applications. Particularly, molybdenum oxides and dichalcogenides nanostructures have been widely examined due to their tunable structural and physicochemical properties that meet sensor requirements. These materials have good durability, are naturally abundant, low cost, and have facile preparation, allowing scalable fabrication to fulfill the growing demand of susceptible sensor devices. Significant advances have been made in recent decades to design and fabricate various molybdenum oxides- and dichalcogenides-based sensing materials, though it is still challenging to achieve high performances. Therefore, many experimental and theoretical investigations have been devoted to exploring suitable approaches which can significantly enhance their gas sensing properties. This review comprehensively examines recent advanced strategies to improve the nanostructured molybdenum-based material performance for detecting harmful pollutants, dangerous gases, or even exhaled breath monitoring. The summary and future challenges to advance their gas sensing performances will also be presented.
Collapse
Affiliation(s)
- Angga Hermawan
- Faculty of Textile Science and Engineering, Shinshu University, 3-15-1 Tokida, Ueda, Nagano, 386-8567, Japan
- Institute of Multidisciplinary Research for Advanced Material (IMRAM), Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai, Miyagi, 980-8577, Japan
| | - Ni Luh Wulan Septiani
- Advanced Functional Materials Research Group, Institut Teknologi Bandung, Bandung, 40132, Indonesia
- Research Center for Nanosciences and Nanotechnology (RCNN), Institut Teknologi Bandung, Bandung, 40132, Indonesia
| | - Ardiansyah Taufik
- Institute of Multidisciplinary Research for Advanced Material (IMRAM), Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai, Miyagi, 980-8577, Japan
| | - Brian Yuliarto
- Advanced Functional Materials Research Group, Institut Teknologi Bandung, Bandung, 40132, Indonesia.
- Research Center for Nanosciences and Nanotechnology (RCNN), Institut Teknologi Bandung, Bandung, 40132, Indonesia.
| | - Shu Yin
- Institute of Multidisciplinary Research for Advanced Material (IMRAM), Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai, Miyagi, 980-8577, Japan.
| |
Collapse
|