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Cong Y, Liu J, Zhang J, Wang J, Wang X, Li L. Photofunctional Gold Nanocluster Composites for Bioapplications. ACS APPLIED BIO MATERIALS 2024; 7:2695-2703. [PMID: 38701372 DOI: 10.1021/acsabm.4c00376] [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: 05/05/2024]
Abstract
Gold nanoclusters (AuNCs), with customized structures and diverse optical properties, are promising optical materials. Constructing composite systems by the assembly and incorporation of AuNCs can utilize their optical properties to achieve diagnostic and therapeutic applications in the biological field. Therefore, the exploration of the assembly behaviors of AuNCs and the enhancement of their performance has attracted widespread interest. In this review, we introduce multiple interactions and assembly modes that are prevalent in nanocomposites and microcomposites based on AuNCs. Then, the functions of AuNC composites for bioapplications are demonstrated in detail. These composite systems have inherited and enhanced the inherent optical performances of the AuNCs to meet diverse requirements for biological sensing and optical treatments. Finally, we discuss the prospects of AuNC composites and highlight the challenges and opportunities in biomedical applications.
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Affiliation(s)
- Yujie Cong
- State Key Laboratory for Advanced Metals and Materials, School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, People's Republic of China
| | - Jiaren Liu
- State Key Laboratory for Advanced Metals and Materials, School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, People's Republic of China
| | - Jingkai Zhang
- State Key Laboratory for Advanced Metals and Materials, School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, People's Republic of China
| | - Jiaxi Wang
- State Key Laboratory for Advanced Metals and Materials, School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, People's Republic of China
| | - Xiaoyu Wang
- State Key Laboratory for Advanced Metals and Materials, School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, People's Republic of China
| | - Lidong Li
- State Key Laboratory for Advanced Metals and Materials, School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, People's Republic of China
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Li J, Wang Y, Shan L, Qian L, Wang W, Liu J, Tang J. A General Protocol for Synthesizing Thiolated Folate Derivatives. Molecules 2023; 28:5228. [PMID: 37446887 DOI: 10.3390/molecules28135228] [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: 06/12/2023] [Revised: 06/30/2023] [Accepted: 07/03/2023] [Indexed: 07/15/2023] Open
Abstract
Folic acid (FA) has shown great potential in the fields of targeted drug delivery and disease diagnosis due to its highly tumor-targeting nature, biocompatibility, and low cost. However, FA is generally introduced in targeted drug delivery systems through macromolecular linkage via complex synthetic processes, resulting in lower yields and high costs. In this work, we report a general protocol for synthesizing thiolated folate derivatives. The small molecule thiolated folate (TFa) was first synthesized with a purity higher than 98.20%. First, S-S-containing diol was synthesized with a purity higher than 99.44 through a newly developed green oxidation protocol, which was carried out in water with no catalyst. Then, folic acid was modified using the diol through esterification, and TFa was finally synthesized by breaking the disulfide bond. Further, the synthesized TFa was utilized to modify silver nanoparticles. The results showed that TFa could be easily bonded to metal particles. The protocol could be extended to the synthesis of a series of thiolated derivatives of folate, such as mercaptohexyl folate, mercaptoundecyl folate, etc., which would greatly benefit the biological applications of FA.
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Affiliation(s)
- Jie Li
- Institute of Hybrid Materials, National Center of International Research for Hybrid Materials Technology, National Base of International Science & Technology Cooperation, College of Materials Science and Engineering, Qingdao University, Qingdao 266071, China
| | - Yao Wang
- Institute of Hybrid Materials, National Center of International Research for Hybrid Materials Technology, National Base of International Science & Technology Cooperation, College of Materials Science and Engineering, Qingdao University, Qingdao 266071, China
| | - Liangang Shan
- Institute of Hybrid Materials, National Center of International Research for Hybrid Materials Technology, National Base of International Science & Technology Cooperation, College of Materials Science and Engineering, Qingdao University, Qingdao 266071, China
| | - Lei Qian
- Institute of Hybrid Materials, National Center of International Research for Hybrid Materials Technology, National Base of International Science & Technology Cooperation, College of Materials Science and Engineering, Qingdao University, Qingdao 266071, China
| | - Wenchao Wang
- Institute of Hybrid Materials, National Center of International Research for Hybrid Materials Technology, National Base of International Science & Technology Cooperation, College of Materials Science and Engineering, Qingdao University, Qingdao 266071, China
| | - Jixian Liu
- Institute of Hybrid Materials, National Center of International Research for Hybrid Materials Technology, National Base of International Science & Technology Cooperation, College of Materials Science and Engineering, Qingdao University, Qingdao 266071, China
| | - Jianguo Tang
- Institute of Hybrid Materials, National Center of International Research for Hybrid Materials Technology, National Base of International Science & Technology Cooperation, College of Materials Science and Engineering, Qingdao University, Qingdao 266071, China
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Wang GQ, Ren XX, Wei JJ, Wang AJ, Zhao T, Feng JJ, Yun Cheang T. Ultrasensitive PEC cytosensor for breast cancer cells detection and inhibitor screening based on plum-branched CdS/Bi 2S 3 heterostructures. Bioelectrochemistry 2023; 152:108442. [PMID: 37060704 DOI: 10.1016/j.bioelechem.2023.108442] [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: 02/17/2023] [Revised: 04/04/2023] [Accepted: 04/06/2023] [Indexed: 04/17/2023]
Abstract
Breast cancer is the most common malignant tumor in women, which seriously threatens the life and health of patients. Therefore, facile and sensitive detection of human breast cancer cells is crucial for cancer diagnosis. In this work, plum-branched CdS/Bi2S3 heterostructures (CdS/Bi2S3 HSs) were synthesized under hydrothermal condition, whose photoelectrochemical (PEC) property and biocompatibility were scrutinously investigated. In parallel, a signal amplification strategy was designed based on immune recognition between epidermal growth factor receptor (EGFR) overexpressed on membrane of breast cancer cells MDA-MB-231 and its aptamer. Integration of the above together, a highly sensitive PEC cytosensor was developed for analysis of target MDA-MB-231 cells, exhibiting a wider linear range of 1 × 102 ∼ 3 × 105 cells mL-1 with a limit of detection (LOD) down to 6 cells mL-1 (S/N = 3). Further, the biosensor was explored for anticancer drug (e.g., dacomitinib) screening by monitoring the variations in the PEC signals of the expressed EGFR upon drug stimulation. The obtained CdS/Bi2S3 HSs are identified as promising and feasible photoactive material for determination of cancer cells and drug screening in clinic and related research.
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Affiliation(s)
- Gui-Qing Wang
- Department of Breast Care Centre, the First Affiliated Hospital of Guangdong Pharmaceutical University, Guangzhou 510080, China; College of Geography and Environmental Sciences, College of Life Science, College of Chemistry and Materials Science, Zhejiang Normal University, Jinhua 321004, China
| | - Xin-Xin Ren
- Department of Breast Care Centre, the First Affiliated Hospital of Guangdong Pharmaceutical University, Guangzhou 510080, China; College of Geography and Environmental Sciences, College of Life Science, College of Chemistry and Materials Science, Zhejiang Normal University, Jinhua 321004, China
| | - Jing-Jing Wei
- College of Geography and Environmental Sciences, College of Life Science, College of Chemistry and Materials Science, Zhejiang Normal University, Jinhua 321004, China
| | - Ai-Jun Wang
- College of Geography and Environmental Sciences, College of Life Science, College of Chemistry and Materials Science, Zhejiang Normal University, Jinhua 321004, China
| | - Tiejun Zhao
- College of Geography and Environmental Sciences, College of Life Science, College of Chemistry and Materials Science, Zhejiang Normal University, Jinhua 321004, China; School of Medicine, Hangzhou City University, Hangzhou 310015, China.
| | - Jiu-Ju Feng
- College of Geography and Environmental Sciences, College of Life Science, College of Chemistry and Materials Science, Zhejiang Normal University, Jinhua 321004, China.
| | - Tuck Yun Cheang
- Department of Breast Care Centre, the First Affiliated Hospital of Guangdong Pharmaceutical University, Guangzhou 510080, China.
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2-Mercaptobenzothiazole-supported ratiometric fluorescent copper nanoclusters for activatable GSH sensing to drive tumor recognition. Colloids Surf B Biointerfaces 2022. [DOI: 10.1016/j.colsurfb.2022.112698] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Yaraki MT, Zahed Nasab S, Zare I, Dahri M, Moein Sadeghi M, Koohi M, Tan YN. Biomimetic Metallic Nanostructures for Biomedical Applications, Catalysis, and Beyond. Ind Eng Chem Res 2022. [DOI: 10.1021/acs.iecr.2c00285] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
| | - Shima Zahed Nasab
- Department of Life Science Engineering, Faculty of New Sciences and Technologies, University of Tehran, Tehran 143951561, Iran
| | - Iman Zare
- Research and Development Department, Sina Medical Biochemistry Technologies Co. Ltd., Shiraz 7178795844, Iran
| | - Mohammad Dahri
- Student Research Committee, School of Pharmacy, Shiraz University of Medical Sciences, Shiraz 71345, Iran
| | - Mohammad Moein Sadeghi
- Student Research Committee, School of Pharmacy, Shiraz University of Medical Sciences, Shiraz 71345, Iran
| | - Maedeh Koohi
- Department of Chemistry, Faculty of Science, University of Zanjan, Zanjan 45371-38791, Islamic Republic of Iran
| | - Yen Nee Tan
- Faculty of Science, Agriculture and Engineering, Newcastle University, Newcastle Upon Tyne NE1 7RU, U.K
- Newcastle Research and Innovation Institute, Newcastle University in Singapore, 80 Jurong East Street 21, No. 05-04, 609607, Singapore
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Imidazole-stabilized gold nanoclusters with thiol depletion capacity for antibacterial application. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.128608] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Cong Y, Wang X, Yao C, Kang Y, Zhang P, Li L. Controlling the Interaction between Fluorescent Gold Nanoclusters and Biointerfaces for Rapid Discrimination of Fungal Pathogens. ACS APPLIED MATERIALS & INTERFACES 2022; 14:4532-4541. [PMID: 35029963 DOI: 10.1021/acsami.1c22045] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Nondestructive detection and discrimination of fungal pathogens is essential for rapid and precise treatment, which further effectively prevents antifungal resistance from overused drugs. In this work, fluorescent gold nanoclusters served as the basis for discriminating Candida species. Varied on surface ligands, these gold nanoclusters demonstrated different optical properties as a result of the perturbation effects of ligands. The biointerface interaction between the surface ligands of gold nanoclusters and the cell walls of Candida species can be constructed, and their restriction on ligands perturbation effect produced enhanced fluorescence signals. Owing to the variation of the cell wall composition, cells of different Candida species demonstrated different degrees of association with the gold nanoclusters, leading to discriminable amounts of fluorescence enhancements. The reverse signal response from these gold nanoclusters gives rise to a synergistic and effective assay that allows identification of Candida species.
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Affiliation(s)
- Yujie Cong
- State Key Laboratory for Advanced Metals and Materials, School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, P.R. China
| | - Xiaoyu Wang
- State Key Laboratory for Advanced Metals and Materials, School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, P.R. China
| | - Chuang Yao
- Key Laboratory of Extraordinary Bond Engineering and Advanced Materials Technology (EBEAM) Chongqing, Yangtze Normal University, Chongqing 408100, P.R. China
| | - Yuetong Kang
- State Key Laboratory for Advanced Metals and Materials, School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, P.R. China
| | - Pengbo Zhang
- School of Chemistry and Biological Engineering, University of Science &Technology Beijing, Beijing 100083, P.R. China
| | - Lidong Li
- State Key Laboratory for Advanced Metals and Materials, School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, P.R. China
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Chai OJH, Wu Z, Xie J. All Hydroxyl-Thiol-Protected Gold Nanoclusters with Near-Neutral Surface Charge. J Phys Chem Lett 2021; 12:9882-9887. [PMID: 34609875 DOI: 10.1021/acs.jpclett.1c02989] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Hydrophilic gold nanoclusters (Au NCs) whose physical and chemical properties are not susceptible to large changes in pH are greatly desired for diverse applications. Here, we design Au NCs protected by a hydroxyl-thiol ligand (e.g., 1-thioglycerol (TG)) with a molecular formula of Au34(TG)22 as a proof-of-concept for a Au NC model with near-neutral surface charge. Unlike hydrophilic thiols with charged functional groups (e.g., carboxylate-thiol) that are usually used for hydrophilic Au NCs, this type of Au NCs is protected by hydroxyl-thiols, which are less susceptible to the prevailing pH conditions as the hydroxyl group is less acidic than water. More interestingly, the resulting Au NCs also possess pH-independent fluorescence intensity, making them suitable for applications under strong acidic conditions, which are currently not available in the reported hydrophilic Au NCs.
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Affiliation(s)
- Osburg J H Chai
- Department of Chemical and Biomolecular Engineering, National University of Singapore, Singapore 117585, Singapore
| | - Zhennan Wu
- Department of Chemical and Biomolecular Engineering, National University of Singapore, Singapore 117585, Singapore
| | - Jianping Xie
- Department of Chemical and Biomolecular Engineering, National University of Singapore, Singapore 117585, Singapore
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Li N, Chen L, Zeng C, Yang H, He S, Wei Q. Comparative Toxicity, Biodistribution and Excretion of Ultra-Small Gold Nanoclusters with Different Emission Wavelengths. J Biomed Nanotechnol 2021; 17:1778-1787. [PMID: 34688322 DOI: 10.1166/jbn.2021.3149] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
The exponentially increased use of gold nanoclusters in diagnosis and treatment has raised serious concern about their potential threat to living organisms. However, the mechanisms of toxicity of gold nanoclusters in vitro and in vivo remain poorly understood. In this work, comparative toxicity studies, including biodistribution and excretion, were carried out with mildly and chemically synthesized ultra-small L-histidine-protected and bovine serum albumin (BSA)-protected gold nanoclusters in an all-aqueous process. These nanoclusters did not induce a remarkable impact on cell viability, even at relatively high concentrations (100 μg/mL). The haemolytic assay demonstrated that the gold nanoclusters could not destroy blood cell at 600 μg/mL. After intravenous injection with mice, the biocompatibility, biodistribution, and excretion were determined. Quantitative analysis results showed that accumulation varied in the liver, spleen, kidney, and lung, though primarily in the liver and spleen. They were excreted in urine and faeces, but mainly excreted through urine. In our study, no obvious abnormalities were found in body weight, behavioral changes, blood and serum biochemical indicators, and histopathology. These findings suggested that both gold nanoclusters showed similar effects in vivo and were safe and biocompatible, laying the foundation for safe biomedical application in the future.
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Affiliation(s)
- Na Li
- Guangxi Key Laboratory of Agricultural Resources Chemistry & Biotechnology, College of Chemistry & Food Science, Yulin Normal University, Yulin, 537000, PR China
| | - Lina Chen
- Guangxi Key Laboratory of Agricultural Resources Chemistry & Biotechnology, College of Chemistry & Food Science, Yulin Normal University, Yulin, 537000, PR China
| | - Chujie Zeng
- Guangxi Key Laboratory of Agricultural Resources Chemistry & Biotechnology, College of Chemistry & Food Science, Yulin Normal University, Yulin, 537000, PR China
| | - Huanggen Yang
- Guangxi Key Laboratory of Agricultural Resources Chemistry & Biotechnology, College of Chemistry & Food Science, Yulin Normal University, Yulin, 537000, PR China
| | - Silian He
- Guangxi Key Laboratory of Agricultural Resources Chemistry & Biotechnology, College of Chemistry & Food Science, Yulin Normal University, Yulin, 537000, PR China
| | - Qingmin Wei
- Guangxi Key Laboratory of Agricultural Resources Chemistry & Biotechnology, College of Chemistry & Food Science, Yulin Normal University, Yulin, 537000, PR China
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Algar WR, Massey M, Rees K, Higgins R, Krause KD, Darwish GH, Peveler WJ, Xiao Z, Tsai HY, Gupta R, Lix K, Tran MV, Kim H. Photoluminescent Nanoparticles for Chemical and Biological Analysis and Imaging. Chem Rev 2021; 121:9243-9358. [PMID: 34282906 DOI: 10.1021/acs.chemrev.0c01176] [Citation(s) in RCA: 122] [Impact Index Per Article: 40.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Research related to the development and application of luminescent nanoparticles (LNPs) for chemical and biological analysis and imaging is flourishing. Novel materials and new applications continue to be reported after two decades of research. This review provides a comprehensive and heuristic overview of this field. It is targeted to both newcomers and experts who are interested in a critical assessment of LNP materials, their properties, strengths and weaknesses, and prospective applications. Numerous LNP materials are cataloged by fundamental descriptions of their chemical identities and physical morphology, quantitative photoluminescence (PL) properties, PL mechanisms, and surface chemistry. These materials include various semiconductor quantum dots, carbon nanotubes, graphene derivatives, carbon dots, nanodiamonds, luminescent metal nanoclusters, lanthanide-doped upconversion nanoparticles and downshifting nanoparticles, triplet-triplet annihilation nanoparticles, persistent-luminescence nanoparticles, conjugated polymer nanoparticles and semiconducting polymer dots, multi-nanoparticle assemblies, and doped and labeled nanoparticles, including but not limited to those based on polymers and silica. As an exercise in the critical assessment of LNP properties, these materials are ranked by several application-related functional criteria. Additional sections highlight recent examples of advances in chemical and biological analysis, point-of-care diagnostics, and cellular, tissue, and in vivo imaging and theranostics. These examples are drawn from the recent literature and organized by both LNP material and the particular properties that are leveraged to an advantage. Finally, a perspective on what comes next for the field is offered.
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Affiliation(s)
- W Russ Algar
- Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, BC V6T 1Z1, Canada
| | - Melissa Massey
- Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, BC V6T 1Z1, Canada
| | - Kelly Rees
- Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, BC V6T 1Z1, Canada
| | - Rehan Higgins
- Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, BC V6T 1Z1, Canada
| | - Katherine D Krause
- Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, BC V6T 1Z1, Canada
| | - Ghinwa H Darwish
- Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, BC V6T 1Z1, Canada
| | - William J Peveler
- School of Chemistry, Joseph Black Building, University of Glasgow, Glasgow G12 8QQ, U.K
| | - Zhujun Xiao
- Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, BC V6T 1Z1, Canada
| | - Hsin-Yun Tsai
- Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, BC V6T 1Z1, Canada
| | - Rupsa Gupta
- Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, BC V6T 1Z1, Canada
| | - Kelsi Lix
- Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, BC V6T 1Z1, Canada
| | - Michael V Tran
- Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, BC V6T 1Z1, Canada
| | - Hyungki Kim
- Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, BC V6T 1Z1, Canada
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Sonia, Komal, Kukreti S, Kaushik M. Gold nanoclusters: An ultrasmall platform for multifaceted applications. Talanta 2021; 234:122623. [PMID: 34364432 DOI: 10.1016/j.talanta.2021.122623] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2021] [Revised: 06/12/2021] [Accepted: 06/14/2021] [Indexed: 01/22/2023]
Abstract
Gold nanoclusters (Au NCs) with a core size below 2 nm form an exciting class of functional nano-materials with characteristic physical and chemical properties. The properties of Au NCs are more prominent and extremely different from their bulk counterparts. The synthesis of Au NCs is generally assisted by template or ligand, which impart excellent cluster stability and high quantum yield. The tunable and sensitive physicochemical properties of Au NCs open horizons for their advanced applications in various interdisciplinary fields. In this review, we briefly summarize the solution phase synthesis and origin of the characteristic properties of Au NCs. A vast review of recent research work introducing biosensors based on Au NCs has been presented along with their specifications and detection limits. This review also highlights recent progress in the use of Au NCs as bio-imaging probe, enzyme mimic, temperature sensing probe and catalysts. A speculation on present challenges and certain future prospects have also been provided to enlighten the path for advancement of multifaceted applications of Au NCs.
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Affiliation(s)
- Sonia
- Nano-bioconjugate Chemistry Lab, Cluster Innovation Centre, University of Delhi, Delhi, India; Nucleic Acids Research Laboratory, Department of Chemistry, University of Delhi, Delhi, India
| | - Komal
- Nano-bioconjugate Chemistry Lab, Cluster Innovation Centre, University of Delhi, Delhi, India; Nucleic Acids Research Laboratory, Department of Chemistry, University of Delhi, Delhi, India
| | - Shrikant Kukreti
- Nucleic Acids Research Laboratory, Department of Chemistry, University of Delhi, Delhi, India
| | - Mahima Kaushik
- Nano-bioconjugate Chemistry Lab, Cluster Innovation Centre, University of Delhi, Delhi, India.
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Zhang G, Xiang M, Kong RM, Qu F. Fluorescent and colorimetric determination of glutathione based on the inner filter effect between silica nanoparticle-gold nanocluster nanocomposites and oxidized 3,3',5,5'-tetramethylbenzidine. Analyst 2021; 145:6254-6261. [PMID: 32985630 DOI: 10.1039/d0an01392g] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Determination of glutathione (GSH) is closely related to the clinical diagnosis of many diseases. Thus, a fluorescent and colorimetric dual-readout strategy for the sensitive determination of glutathione was proposed. The mesoporous silica nanoparticle-gold nanocluster (MSN-AuNC) nanocomposites with significantly enhanced emission and effectively improved photostability characteristics were used as fluorescent probes. Based on the inner filter effect (IFE), the fluorescence of MSN-AuNCs at 570 nm can be effectively quenched by oxidized 3,3',5,5'-tetramethylbenzidine (oxTMB) with absorption in the wavelength ranges of 330-470 nm and 500-750 nm. However, the addition of GSH could cause the reduction of blue oxTMB to colorless TMB, resulting in the inhibition of IFE and the recovery of the fluorescence of MSN-AuNCs. Therefore, using oxTMB as both quencher and color indicator, a dual-readout oxTMB/MSN-AuNC sensing system for the sensitive determination of GSH was constructed. As signal amplification is caused by the fluorescence enhancement of MSN-AuNCs, the detection limits as low as 0.12 μM and 0.34 μM can be obtained for fluorescent and colorimetric assay, respectively. This method may not only offer a new idea for the sensitive and effective determination of GSH, but also broaden the applications of AuNCs in fluorescent and colorimetric dual-readout bioanalysis.
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Affiliation(s)
- Guoyan Zhang
- Key Laboratory of Life-Organic Analysis of Shandong Province, Qufu Normal University, Qufu 273165, China.
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Zhu S, Wang X, Cong Y, Liu L, Li L. Free Radical Polymerization of Gold Nanoclusters and Hydrogels for Cell Capture and Light-Controlled Release. ACS APPLIED MATERIALS & INTERFACES 2021; 13:19360-19368. [PMID: 33876923 DOI: 10.1021/acsami.1c03587] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Gold nanocluster (AuNC) decorated hydrogels have attracted considerable attention as versatile biomaterials. To date AuNCs and hydrogels have mainly been mixed as independent components. Here, we report the use of AuNCs as reactive monomers in the polymerization of hydrogels. We used a free radical polymerization to copolymerize AuNCs with acrylamide and N-acryloyl glycinamide to prepare stimuli-responsive smart hydrogels. Multiple C═C bonds were decorated on the surface of the AuNCs as active sites for polymerization. These C═C bonds not only protected the structure of the AuNCs from oxidation by free radicals during polymerization but also covalently connected the AuNCs with the polymer chains. This structure ensured good photothermal performance of the AuNCs while preserving the thermoresponsive hydrogen bonds of polymers. Moreover, the copolymerized AuNCs acted as cross-linkers, which improved the mechanical properties of the hydrogels. These smart hydrogels had good stability, efficient photothermal conversion, and a sensitive thermoresponsive. We examined their potential for capture of MDA-MB-231 cells with hyaluronic acid as target molecules. The captured cells were released under 660 nm irradiation. This process of targeted capture and light-controlled remote release could be repeatedly applied. These results suggest that systems based on AuNCs copolymerized with hydrogels have great potential for biomedical applications.
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Affiliation(s)
- Shuxian Zhu
- State Key Laboratory for Advanced Metals and Materials, School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, P. R. China
| | - Xiaoyu Wang
- State Key Laboratory for Advanced Metals and Materials, School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, P. R. China
| | - Yujie Cong
- State Key Laboratory for Advanced Metals and Materials, School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, P. R. China
| | - Lu Liu
- State Key Laboratory for Advanced Metals and Materials, School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, P. R. China
| | - Lidong Li
- State Key Laboratory for Advanced Metals and Materials, School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, P. R. China
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Yuan Y, Zhou R, Li T, Qu S, Bai H, Liang J, Cai X, Guo B. Enriched Au nanoclusters with mesoporous silica nanoparticles for improved fluorescence/computed tomography dual-modal imaging. Cell Prolif 2021; 54:e13008. [PMID: 33634540 PMCID: PMC8016642 DOI: 10.1111/cpr.13008] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2020] [Revised: 01/21/2021] [Accepted: 01/24/2021] [Indexed: 02/05/2023] Open
Abstract
Objectives Au nanoclusters (AuNCs) have been used widely in fluorescence bio‐imaging because of their good fluorescence, small particle size and non‐cytotoxicity. AuNCs are also efficient in computed tomography (CT) imaging. Hence, a dual‐modal imaging probe can be constructed without any complicated modification processes by exploiting the excellent performance of AuNCs. In the present study, AuNCs were enriched with mesoporous silica nanoparticles (MSNs) to obtain enhanced fluorescence/CT dual‐modal imaging, which was capable of acquiring more imaging information for diseases compared with single‐mode imaging. Materials and methods Biocompatible bovine serum albumin (BSA)‐capped AuNCs were prepared and loaded into amine‐functionalized MSNs to form MSN@AuNCs. BSA‐AuNCs, MSNs, and MSN@AuNCs were characterized by ultraviolet‐visible (UV‐vis) spectra, transmission electron microscopy (TEM), fluorescence spectra, and zeta potential. CT imaging was recorded using micro‐CT scanning. Fluorescence imaging was measured using confocal laser scanning microscopy and flow cytometry. Results The prepared AuNCs and MSNs possessed good properties as previously reported. The fluorescence intensity and CT value of the AuNCs were enhanced after being enriched with MSNs. The nanoparticles were both non‐cytotoxic. Confocal laser scanning microscopy and flow cytometry indicated that MSN@AuNCs in CAL‐27 cells showed improved fluorescence imaging compared with simple AuNCs at the same concentration. Conclusions The results revealed that the strategy of enriching AuNCs with MSNs can obtain highly sensitive fluorescence/CT dual‐modal imaging, which indicated the potential of this nanoparticle in the diagnosis and treatment of disease.
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Affiliation(s)
- Yifang Yuan
- Department of Stomatology, Chinese PLA General Hospital, Beijing, China
| | - Ronghui Zhou
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Ting Li
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Shuang Qu
- Department of Stomatology, Chinese PLA General Hospital, Beijing, China
| | - Hua Bai
- Department of Stomatology, Chinese PLA General Hospital, Beijing, China
| | - Jiawu Liang
- Department of Stomatology, Chinese PLA General Hospital, Beijing, China
| | - Xiaoxiao Cai
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Bin Guo
- Department of Stomatology, Chinese PLA General Hospital, Beijing, China
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17
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Cong Y, Wang X, Zhu S, Liu L, Li L. Spiropyran-Functionalized Gold Nanoclusters with Photochromic Ability for Light-Controlled Fluorescence Bioimaging. ACS APPLIED BIO MATERIALS 2021; 4:2790-2797. [DOI: 10.1021/acsabm.1c00011] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Yujie Cong
- State Key Laboratory for Advanced Metals and Materials, School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, P. R. China
| | - Xiaoyu Wang
- State Key Laboratory for Advanced Metals and Materials, School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, P. R. China
| | - Shuxian Zhu
- State Key Laboratory for Advanced Metals and Materials, School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, P. R. China
| | - Lu Liu
- State Key Laboratory for Advanced Metals and Materials, School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, P. R. China
| | - Lidong Li
- State Key Laboratory for Advanced Metals and Materials, School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, P. R. China
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18
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Liu L, Wang X, Zhu S, Li L. Different Surface Interactions between Fluorescent Conjugated Polymers and Biological Targets. ACS APPLIED BIO MATERIALS 2021; 4:1211-1220. [PMID: 35014474 DOI: 10.1021/acsabm.0c01567] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Fluorescent conjugated polymers (CPs) have attracted considerable interest in biosensing owing to their high fluorescence, tunable bandgap, and good biocompatibility. Aiming at acquiring the desired optical responses of CPs for bioapplications, it is essential that the CPs bind to biological targets with high efficacy and affinity. However, the efficient binding of CPs is largely driven by their effective interaction with target surfaces. In this Review, we will focus on the different surface interactions that pervade between CPs and biological targets. The multiple surface interactions can lead to changes in spatial conformation and distribution of CPs, which manifest alterable optical properties of CPs based on accumulation of target-directed CPs, Förster resonance energy transfer mechanism, and metal-enhanced fluorescence mechanism. Then, we display diverse bioapplications applying CPs-based surface interactions, such as cell imaging, imaging-guided detection, and photodynamic therapy. Finally, the challenges and future developments to control the efficient attachment of CPs to biological targets are discussed. We expect that the understanding of surface interactions between CPs and biological targets benefits the CPs-based system design and expands their applications in biological detections and therapies.
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Affiliation(s)
- Lu Liu
- State Key Laboratory for Advanced Metals and Materials, School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, P. R. China
| | - Xiaoyu Wang
- State Key Laboratory for Advanced Metals and Materials, School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, P. R. China
| | - Shuxian Zhu
- State Key Laboratory for Advanced Metals and Materials, School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, P. R. China
| | - Lidong Li
- State Key Laboratory for Advanced Metals and Materials, School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, P. R. China
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19
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Liang K, Qu S, Li Y, Tan LL, Shang L. Surface chemistry regulates the optical properties and cellular interactions of ultrasmall MoS 2 quantum dots for biomedical applications. J Mater Chem B 2021; 9:5682-5690. [PMID: 34212168 DOI: 10.1039/d1tb00647a] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Molybdenum disulfide quantum dots (MoS2 QDs) have drawn increasing attention owing to their distinct optical properties and potential applications in many fields such as biosensing, photocatalysis and cell imaging. Elucidating the relationship between the surface chemistry of MoS2 QDs and their optical properties as well as biological behaviors is critical for their practical applications, which remain largely unclear. Herein, by adopting a sulfur vacancy modification strategy, a toolbox of MoS2 QDs functionalized with different thiolate ligands was prepared. The effect of surface chemistry on the optical properties of MoS2 QDs was systematically explored by various spectroscopic techniques, revealing the important role of surface ligands in defining their absorption band gap and luminescence quantum yield. Furthermore, cellular experiments showed that the cytotoxicity and intracellular fate (i.e., lysosomal accumulation) of MoS2 QDs are closely related to the properties of surface ligands. Our results underscore the important roles of surface ligands in regulating the properties and biological interactions of these QDs, which will facilitate the future development of MoS2-based materials with precisely controlled functions for biomedical applications.
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Affiliation(s)
- Kangqiang Liang
- State Key Laboratory of Solidification Processing, School of Materials Science and Engineering, Northwestern Polytechnical University and Shaanxi Joint Laboratory of Graphene (NPU), Xi'an, China
| | - Shaohua Qu
- State Key Laboratory of Solidification Processing, School of Materials Science and Engineering, Northwestern Polytechnical University and Shaanxi Joint Laboratory of Graphene (NPU), Xi'an, China
| | - Yixiao Li
- State Key Laboratory of Solidification Processing, School of Materials Science and Engineering, Northwestern Polytechnical University and Shaanxi Joint Laboratory of Graphene (NPU), Xi'an, China
| | - Li-Li Tan
- State Key Laboratory of Solidification Processing, School of Materials Science and Engineering, Northwestern Polytechnical University and Shaanxi Joint Laboratory of Graphene (NPU), Xi'an, China
| | - Li Shang
- State Key Laboratory of Solidification Processing, School of Materials Science and Engineering, Northwestern Polytechnical University and Shaanxi Joint Laboratory of Graphene (NPU), Xi'an, China and NPU-QMUL Joint Research Institute of Advanced Materials and Structures (JRI-AMAS), Northwestern Polytechnical University, Xi'an, China.
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20
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Zhu S, Wang X, Cong Y, Li L. Regulating the Optical Properties of Gold Nanoclusters for Biological Applications. ACS OMEGA 2020; 5:22702-22707. [PMID: 32954117 PMCID: PMC7495455 DOI: 10.1021/acsomega.0c03218] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/04/2020] [Accepted: 08/18/2020] [Indexed: 06/10/2023]
Abstract
Gold nanoclusters are promising optically functional materials because of their attractive optical properties, such as luminescence, two-photon absorption, photothermal conversion, and photodynamics. Regulating the optical functions of gold nanoclusters and improving their performance have attracted wide interest in biological applications. In this Review, we introduce the principles to manipulate both the intrinsic optical properties and the apparent optical performance of gold nanoclusters. Manipulating the surface ligands and compounding with other nanomaterials are facile and efficient strategies. Based on the regulated optical properties, the gold nanoclusters can be well applied in various biomedical applications from multimodal bioimaging toward theranostics. By correlating structures and optical properties, we expect a better utilization of the optical gold nanoclusters in the biological field.
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21
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Fang X, Huang Y, Yu D, Shi C, Liu M. Highly stable folic acid functionalized copper-nanocluster/silica nanoparticles for selective targeting of cancer cells. RSC Adv 2020; 10:31463-31469. [PMID: 35520657 PMCID: PMC9056389 DOI: 10.1039/d0ra06523d] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2020] [Accepted: 08/18/2020] [Indexed: 12/15/2022] Open
Abstract
In this paper, we present a novel strategy to construct folic acid functionalized conjugated Cu nanoclusters (CuNCs) and silica (SiO2) nanocomposites for targeted detection of cancer cells. First of all, BSA capped CuNCs were encapsulated into a SiO2 matrix. The resulting CuNCs@SiO2 nanoparticles showed bright red fluorescence with an enhanced photoluminescence quantum yield compared with free CuNCs, as well as improved stability in a complex biological environment owning to the protection of the SiO2 matrix. Upon attachment of folic acid via the poly-l-lysine conjugates (PLL-FA) on the surface of CuNCs@SiO2 driven by electrostatic interaction, the as-prepared CuNCs@SiO2/PLL-FA nanocomposites are capable of selectively recognizing folate receptor (FR) over-expressed cancer cells rather than FR-negative cells. The cell viability assay proved the low biotoxicity of CuNCs@SiO2/PLL-FA nanocomposites toward living cells and the in vitro cellular imaging assay results demonstrated their selective endocytosis of FR-positive cells (KB cells), bringing about red fluorescence labeling within the cells. Intriguingly, our strategy provides a novel route to synthesize functional CuNCs@SiO2/PLL-FA nanocomposites equipped with superior fluorescence properties, high stability against external stimuli and good biocompatibility, and have great application potential in bioimaging imaging and targeted cell detection. Folic acid functionalized CuNCs@SiO2 nanocomposites with superior fluorescence properties, high stability and good biocompatibility for targeted cell imaging.![]()
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Affiliation(s)
- Xiaoming Fang
- Department of Respiratory, Affiliated Hospital of Nanjing Medical University, Changzhou Second People's Hospital Changzhou 213003 China
| | - Yanhua Huang
- Department of Respiratory, Affiliated Hospital of Nanjing Medical University, Changzhou Second People's Hospital Changzhou 213003 China
| | - Dan Yu
- Department of Respiratory, Affiliated Hospital of Nanjing Medical University, Changzhou Second People's Hospital Changzhou 213003 China
| | - Caiwen Shi
- Department of Respiratory, Affiliated Hospital of Nanjing Medical University, Changzhou Second People's Hospital Changzhou 213003 China
| | - Ming Liu
- Department of Respiratory, Affiliated Hospital of Nanjing Medical University, Changzhou Second People's Hospital Changzhou 213003 China
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22
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Zhu S, Wang X, Liu L, Li L. Gold nanocluster grafted conjugated polymer nanoparticles for cancer cell imaging and photothermal killing. Colloids Surf A Physicochem Eng Asp 2020. [DOI: 10.1016/j.colsurfa.2020.124764] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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23
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Gold nanoparticle-modified black phosphorus nanosheets with improved stability for detection of circulating tumor cells. Mikrochim Acta 2020; 187:397. [PMID: 32564257 DOI: 10.1007/s00604-020-04367-8] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2020] [Accepted: 06/01/2020] [Indexed: 12/14/2022]
Abstract
Gold nanoparticle (AuNP)-anchored BP nanosheets were synthesized through in situ growth of AuNPs onto BP. Due to the strong chelating ability of P or phosphorus oxides with AuNPs, the stability of BP is improved. As proof-of-concept demonstration of the functionalized BP, electrochemical detection of circulating tumor cells (CTCs) based on BP@AuNPs@aptamer as a probe combined with immunomagnetic separation is reported. The aptamer can specifically bind with CTCs, while the phosphorus oxides including phosphite ion and phosphate ion (PxOy species) on BP and aptamer can react with molybdate to generate an electrochemical current, leading to dual signal amplification. The biosensor is applied to MCF-7 cell detection and displays good analytical performance with a detection limit of 2 cell mL-1. Furthermore, the practicality of this biosensor was validated through sensitive determination of MCF-7 cells in human blood. Therefore, the reported biosensor could be applied to detect other biomarkers, offering an ultrasensitive strategy for clinical diagnostics. Graphical abstract Electrochemical detection of circulating tumor cells based on gold nanoparticle-modified black phosphorus nanosheets is reported.
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24
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He Y, Wang M, Li X, Yu T, Gao X. Targeted MIP-3β plasmid nanoparticles induce dendritic cell maturation and inhibit M2 macrophage polarisation to suppress cancer growth. Biomaterials 2020; 249:120046. [PMID: 32325346 DOI: 10.1016/j.biomaterials.2020.120046] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2020] [Revised: 04/05/2020] [Accepted: 04/09/2020] [Indexed: 02/05/2023]
Abstract
In recent decades, cancer immunotherapy has demonstrated considerable clinical advantages in cancer therapy. Particularly, the use of immunological gene therapy continues to grow in this field. Macrophage Inflammatory Protein 3 Beta (MIP-3β) has emerged as a potential immunomodulator for anti-cancer treatments by enhancing the interaction among immune responses. In this study, we demonstrate an innovative targeted gene delivery system based on a self-assembly technique with 1,2-Dioleoyl-3-trimethylammonium-propane (DOTAP), Methoxy poly(ethylene glycol)-poly(lactide) (MPEG-PLA), and folic acid modified poly(ethylene glycol)-poly(ε-caprolactone) (FA-PEG-PCL) (FDMCA). Results showed that the expression of MIP-3β was up-regulated in cancer cells following the transfection with FDMCA-pMIP-3β, in comparison with cells transfected with DMCA-pMIP-3β. The supernatants collected from cancer cells transfected with FDMCA-pMIP-3β and DMCA-pMIP-3β both instigate dendritic cell maturation, M1 polarisation of macrophages, activation and presentation of cytotoxicity in lymphocytes. Moreover, tumor growth and metastasis were markedly inhibited following the administration of the FDMCA-pMIP-3β complex in both subcutaneous and pulmonary metastasis mice models, which is attributed to reduced angiogenesis, enhanced cancer cell apoptosis, and suppressed proliferation by activation of the immune system. Our study suggests that the MIP-3β plasmid and FDMCA complex provide a new approach for the treatment of breast cancer.
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Affiliation(s)
- Yihong He
- Department of Neurosurgery and Institute of Neurosurgery, State Key Laboratory of Biotherapy West China Hospital, West China Medical School, Sichuan University and Collaborative Innovation Center for Biotherapy, Chengdu, 610041, PR China
| | - Manni Wang
- Department of Neurosurgery and Institute of Neurosurgery, State Key Laboratory of Biotherapy West China Hospital, West China Medical School, Sichuan University and Collaborative Innovation Center for Biotherapy, Chengdu, 610041, PR China
| | - Xiaoling Li
- Department of Neurosurgery and Institute of Neurosurgery, State Key Laboratory of Biotherapy West China Hospital, West China Medical School, Sichuan University and Collaborative Innovation Center for Biotherapy, Chengdu, 610041, PR China
| | - Ting Yu
- Department of Neurosurgery and Institute of Neurosurgery, State Key Laboratory of Biotherapy West China Hospital, West China Medical School, Sichuan University and Collaborative Innovation Center for Biotherapy, Chengdu, 610041, PR China; Department of Pathology and Laboratory of Pathology, State Key Laboratory of Biotherapy, West China Hospital, West China School of Medicine, Sichuan University, PR China
| | - Xiang Gao
- Department of Neurosurgery and Institute of Neurosurgery, State Key Laboratory of Biotherapy West China Hospital, West China Medical School, Sichuan University and Collaborative Innovation Center for Biotherapy, Chengdu, 610041, PR China.
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25
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Wang X, Guo J, Zhang Q, Zhu S, Liu L, Jiang X, Wei DH, Liu RS, Li L. Gelatin sponge functionalized with gold/silver clusters for antibacterial application. NANOTECHNOLOGY 2020; 31:134004. [PMID: 31751976 DOI: 10.1088/1361-6528/ab59eb] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Pathogenic bacterial infection, especially in the wound, may threaten human health. Developing new antibacterial materials for wound healing is still urgent. Metal nanoclusters have been explored as a novel antibacterial agent. Herein, biomolecule gelatin was chosen as a substrate and functionalized with gold/silver clusters for bacterial killing. Through a simple amidation reaction, gold/silver clusters were successfully conjugated in a gelatin substrate to obtain a Au/Ag@gelatin sponge. The presence of gold/silver clusters modified the porous structure of the gelatin. Thus, the water absorption and water retention of the Au/Ag@gelatin sponge were enhanced. More importantly, the gold/silver clusters show aggregation-enhanced emission and strong reactive oxygen generation, that endow the Au/Ag@gelatin sponge with a good antibacterial property. The good physical performance and favorable bactericidal activity of the Au/Ag@gelatin sponge suggest its potential for application as a wound dressing.
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Affiliation(s)
- Xiaoyu Wang
- State Key Laboratory for Advanced Metals and Materials, School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083
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26
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Zhu S, Wang X, Li S, Liu L, Li L. Near-Infrared-Light-Assisted in Situ Reduction of Antimicrobial Peptide-Protected Gold Nanoclusters for Stepwise Killing of Bacteria and Cancer Cells. ACS APPLIED MATERIALS & INTERFACES 2020; 12:11063-11071. [PMID: 32027113 DOI: 10.1021/acsami.0c00310] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Biomolecule-protected gold nanostructures show good performance in biomedical applications. However, precise control over gold nanocluster (AuNC) preparation with biomolecules remains challenging. Here, we develop a simple near-infrared (NIR)-light-assisted method for in situ reduction of antimicrobial peptide (AMP)-protected AuNCs. Take advantage of the high photothermal conversion efficiency of the conjugated polymer (CP) upon NIR light irradiation, we promote the rapid reduction of AuNCs by the AMP on the surface of the CP. The fluorescent properties of the AuNCs were improved owing to the formation of a unique Au(0)NC@Au(I)AMP core-shell nanostructure. This nanostructure is attributed to the rapid reduction of Au(0) and collision and fusion of Au(0) at high temperatures. Integrating antibacterial AMPs, fluorescent AuNCs, and photothermal CPs, the composites facilitated different killing mechanisms for both bacteria and cancer cells. This material system provides an all-in-one strategy for the stepwise killing of cancer cells and bacterial infection.
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Affiliation(s)
- Shuxian Zhu
- State Key Laboratory for Advanced Metals and Materials, School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, P. R. China
| | - Xiaoyu Wang
- State Key Laboratory for Advanced Metals and Materials, School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, P. R. China
| | - Shengliang Li
- Center of Super-Diamond and Advanced Films, Department of Chemistry, City University of Hong Kong, Hong Kong 999077, P. R. China
| | - Lu Liu
- State Key Laboratory for Advanced Metals and Materials, School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, P. R. China
| | - Lidong Li
- State Key Laboratory for Advanced Metals and Materials, School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, P. R. China
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27
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Chen A, Kang X, Jin S, Du W, Wang S, Zhu M. Gram-Scale Preparation of Stable Hydride M@Cu 24 (M = Au/Cu) Nanoclusters. J Phys Chem Lett 2019; 10:6124-6128. [PMID: 31573812 DOI: 10.1021/acs.jpclett.9b02297] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The instability of phosphine ligated copper hydride nanoclusters (CuH NCs) has largely limited their application in areas such as H2 storage, CO2 reduction, etc. In this work, the stability of CuH NCs was remarkably enhanced by improving their antioxidant capacity through two different approaches: (i) metal doping and (ii) ligand modification. Three NCs, AuCu24H22(PPh3)12, Cu25H22((p-FPh)3P)12, and AuCu24H22((p-FPh)3P)12, were controllably synthesized, and their structures were determined by single-crystal X-ray diffraction. The compositions of these NCs were further confirmed by electrospray ionization mass spectrometry and nuclear magnetic resonance. More importantly, we achieved gram-level production of M@Cu24 (M = Cu/Au) NCs protected by electron-withdrawing ligands (p-FPh)3P, which in turn proved their superior stability; such a large-scale preparation laid the foundation for future explorations of copper-rich NCs. This work hopes to shed light on large-scale generation of ultrastable Cu-based NCs.
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Affiliation(s)
- Along Chen
- Key Laboratory of Structure and Functional Regulation of Hybrid Materials , Ministry of Education , Hefei 230601 , Anhui , China
| | - Xi Kang
- Key Laboratory of Structure and Functional Regulation of Hybrid Materials , Ministry of Education , Hefei 230601 , Anhui , China
| | - Shan Jin
- Key Laboratory of Structure and Functional Regulation of Hybrid Materials , Ministry of Education , Hefei 230601 , Anhui , China
| | - Wenjun Du
- Key Laboratory of Structure and Functional Regulation of Hybrid Materials , Ministry of Education , Hefei 230601 , Anhui , China
| | - Shuxin Wang
- Key Laboratory of Structure and Functional Regulation of Hybrid Materials , Ministry of Education , Hefei 230601 , Anhui , China
| | - Manzhou Zhu
- Key Laboratory of Structure and Functional Regulation of Hybrid Materials , Ministry of Education , Hefei 230601 , Anhui , China
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28
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Jiang X, Wang X, Yao C, Zhu S, Liu L, Liu R, Li L. Surface-Engineered Gold Nanoclusters with Biological Assembly-Amplified Emission for Multimode Imaging. J Phys Chem Lett 2019; 10:5237-5243. [PMID: 31438679 DOI: 10.1021/acs.jpclett.9b02046] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Here, we develop bifunctional ligand-engineered gold nanoclusters (AuNCs) as signal amplifying reporters for multimode imaging. Modified streptavidin (SA) and biotin alkyl acid-based ligands were applied to AuNCs to form AuNC-SA and AuNC-biotin. The zwitterionic ligands promoted bioassembly and avoided nonspecific adsorption. The AuNCs resisted aggregation-induced quenching and showed strong emission benefited from biological self-assembly. The engineered AuNCs featured stable emission, a large two-photon absorption cross section, long fluorescence lifetime, and good biocompatibility. Thus, cell-expressed antigen-induced protein-binding events were effectively converted into signals from the biological assemble of AuNCs. We performed a comprehensive assay of specific antigens and the cell structure, through one-photon imaging, two-photon imaging, and fluorescence lifetime imaging of AuNCs in a simple, sensitive, and reliable way.
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Affiliation(s)
- Xiaofeng Jiang
- State Key Laboratory for Advanced Metals and Materials, School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, P. R. China
| | - Xiaoyu Wang
- State Key Laboratory for Advanced Metals and Materials, School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, P. R. China
| | - Chuang Yao
- Key Laboratory of Extraordinary Bond Engineering and Advance Materials Technology (EBEAM) of Chongqing, Yangtze Normal University, Chongqing 408100, People's Republic of China
| | - Shuxian Zhu
- State Key Laboratory for Advanced Metals and Materials, School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, P. R. China
| | - Lu Liu
- State Key Laboratory for Advanced Metals and Materials, School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, P. R. China
| | - Ronghua Liu
- State Key Laboratory for Advanced Metals and Materials, School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, P. R. China
| | - Lidong Li
- State Key Laboratory for Advanced Metals and Materials, School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, P. R. China
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29
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Xia J, Wang X, Zhu S, Liu L, Li L. Gold Nanocluster-Decorated Nanocomposites with Enhanced Emission and Reactive Oxygen Species Generation. ACS APPLIED MATERIALS & INTERFACES 2019; 11:7369-7378. [PMID: 30673272 DOI: 10.1021/acsami.8b19679] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
Ligand-protected gold nanoclusters (AuNCs) show promise for high performance in biological applications, such as imaging and therapeutics. The assembly of AuNCs with biological macromolecules represents a simple but effective approach to fine-tuning of material functionalities. Thus, these materials might enable intracellular applications of AuNCs. Herein, we prepared a new AuNC-based nanometric system through a self-assembly approach mediated by hydrophobic and electrostatic effects. We show that hydrophobic and electrostatic effects between fluorescent AuNCs with protamine and hyaluronic acid contribute to the formation of small nanocomposites with acceptable colloidal stability. More importantly, the AuNC-decorated nanocomposites show assembly enhanced emission and singlet oxygen generation. In vitro experiments showed that our nanocomposites labeled specific cells by targeting CD44 and induced cell death by producing singlet oxygen. Hence, our AuNC-decorated nanocomposites show great potential as theranostic fluorescent nanomaterials.
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Affiliation(s)
- Junhan Xia
- State Key Laboratory for Advanced Metals and Materials, School of Materials Science and Engineering , University of Science and Technology Beijing , Beijing 100083 , P. R. China
| | - Xiaoyu Wang
- State Key Laboratory for Advanced Metals and Materials, School of Materials Science and Engineering , University of Science and Technology Beijing , Beijing 100083 , P. R. China
| | - Shuxian Zhu
- State Key Laboratory for Advanced Metals and Materials, School of Materials Science and Engineering , University of Science and Technology Beijing , Beijing 100083 , P. R. China
| | - Lu Liu
- State Key Laboratory for Advanced Metals and Materials, School of Materials Science and Engineering , University of Science and Technology Beijing , Beijing 100083 , P. R. China
| | - Lidong Li
- State Key Laboratory for Advanced Metals and Materials, School of Materials Science and Engineering , University of Science and Technology Beijing , Beijing 100083 , P. R. China
- State Key Laboratory of Fine Chemicals , Dalian University of Technology , Dalian 116024 , P. R. China
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30
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Wang H, Zhou C, Sun X, Jian Y, Kong Q, Cui K, Ge S, Yu J. Polyhedral-AuPd nanoparticles-based dual-mode cytosensor with turn on enable signal for highly sensitive cell evalution on lab-on-paper device. Biosens Bioelectron 2018; 117:651-658. [DOI: 10.1016/j.bios.2018.07.004] [Citation(s) in RCA: 58] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2018] [Revised: 06/29/2018] [Accepted: 07/03/2018] [Indexed: 10/28/2022]
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31
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Guo X, Zhuang Q, Ji T, Zhang Y, Li C, Wang Y, Li H, Jia H, Liu Y, Du L. Multi-functionalized chitosan nanoparticles for enhanced chemotherapy in lung cancer. Carbohydr Polym 2018; 195:311-320. [DOI: 10.1016/j.carbpol.2018.04.087] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2018] [Revised: 04/17/2018] [Accepted: 04/23/2018] [Indexed: 01/28/2023]
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32
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Huang H, Li H, Wang H, Li J, Li P, Chen Q, Chen Y, Chu PK, Li B, Yu XF. Morphological control of gold nanorods via thermally driven bi-surfactant growth and application for detection of heavy metal ions. NANOTECHNOLOGY 2018; 29:334001. [PMID: 29786615 DOI: 10.1088/1361-6528/aac6b2] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
We report a modified synthesis route of colloidal gold nanorods (AuNRs) by combining the thermal re-shaping treatment and bi-surfactant modification using hexadecyltrimethylammonium bromide (CTAB) and sodium oleate (NaOL). Aspect ratios down to 1.3 ± 0.1 can be achieved in addition to good monodispersity, uniformity, and chemical stability of the materials. Furthermore, without needing post-treatment, metal ions directly interact with the AuNRs efficiently, allowing rapid and sensitive colorimetric detection of heavy metal ions such as Pb2+ and Cu2+ with a low concentration down to 2.5 μM. The detection performance in terms of selectivity, sensitivity and stability is systematically evaluated. The AuNRs with tunable aspect ratios as well as chemical stability have potential in surface-plasmon-based applications such as biochemical sensing, biochemical imaging, medical diagnostics, and cancer therapy.
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Affiliation(s)
- Hao Huang
- Center for Biomedical Materials and Interfaces, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, People's Republic of China
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33
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Wang X, Wang C, Yang N, Xia J, Li L. Preparation of fluorescent nanocomposites based on gold nanoclusters self-assembly. Colloids Surf A Physicochem Eng Asp 2018. [DOI: 10.1016/j.colsurfa.2018.03.059] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Liu L, Liu R, Wang X, Cui Q, Yao C, Zhu S, Li L. Facile Preparation of Fluorescent Nanoparticles with Tunable Exciplex Emission and Their Application to Targeted Cellular Imaging. ACS APPLIED BIO MATERIALS 2018. [DOI: 10.1021/acsabm.8b00116] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Lu Liu
- State Key Laboratory for Advanced Metals and Materials, School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, P. R. China
| | - Ronghua Liu
- State Key Laboratory for Advanced Metals and Materials, School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, P. R. China
| | - Xiaoyu Wang
- State Key Laboratory for Advanced Metals and Materials, School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, P. R. China
| | - Qianling Cui
- State Key Laboratory for Advanced Metals and Materials, School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, P. R. China
| | - Chuang Yao
- Key Laboratory of Extraordinary Bond Engineering and Advanced Materials Technology (EBEAM) Chongqing, Yangtze Normal University, Chongqing 408100, P. R. China
| | - Shuxian Zhu
- State Key Laboratory for Advanced Metals and Materials, School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, P. R. China
| | - Lidong Li
- State Key Laboratory for Advanced Metals and Materials, School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, P. R. China
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116024, P. R. China
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35
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Yang R, Mu WY, Chen QY, Wang Q, Gao J. Smart Magnetic Nanoaptamer: Construction, Subcellular Distribution, and Silencing HIF for Cancer Gene Therapy. ACS Biomater Sci Eng 2018; 4:2606-2613. [PMID: 33435123 DOI: 10.1021/acsbiomaterials.8b00204] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Attenuating the expression of HIF-1α (hypoxic inducible factor) by siRNA has an effect on the proliferation of hypoxia cancers. Mitochondria targeting siRNA may silence the level of HIF-1α for cancer gene therapy. A GAG-rich DNA was conjugated to GC-rich DNA for the synthesis of functional magnetic nanoaptamer (DNA-Fe3O4) to keep the innate character of the targeting aptamer. The DNA-Fe3O4 can load the hydrophobic dye (BODIPY-OCH3) by the GC-rich sequences, resulting in fluorescent nanoaptamer (BFe@DNA). Self-assembly of BFe@DNA with target aptamer resulted in the formation of BFe@DNAH. Subcellular fluorescence imaging results confirm that BFe@DNAH can accumulate in MCF-7 cells and selectively target mitochondrion. In particular, BFe@DNAH can transport siRNA to breast cancer cells or tissues for the attenuation of HIF-1α and ATP and the inhibition on growth of cancer cells in vivo. Therefore, BFe@DNAH is a smart nanoaptamer platform for the development of subcellular imaging agents and gene therapy.
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Affiliation(s)
- Rui Yang
- School of Chemistry and Chemical Engineering, Jiangsu University, 301 Xuefu Road, Zhenjiang, Jingkou District 212013, People's Republic of China
| | - Wei-Yu Mu
- School of Chemistry and Chemical Engineering, Jiangsu University, 301 Xuefu Road, Zhenjiang, Jingkou District 212013, People's Republic of China
| | - Qiu-Yun Chen
- School of Chemistry and Chemical Engineering, Jiangsu University, 301 Xuefu Road, Zhenjiang, Jingkou District 212013, People's Republic of China
| | - Qiang Wang
- School of Pharmacy, Jiangsu University, 301 Xuefu Road, Zhenjiang, Jingkou District 212013, People's Republic of China
| | - Jing Gao
- School of Pharmacy, Jiangsu University, 301 Xuefu Road, Zhenjiang, Jingkou District 212013, People's Republic of China
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36
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Xia Q, Chen Z, Yu Z, Wang L, Qu J, Liu R. Aggregation-Induced Emission-Active Near-Infrared Fluorescent Organic Nanoparticles for Noninvasive Long-Term Monitoring of Tumor Growth. ACS APPLIED MATERIALS & INTERFACES 2018; 10:17081-17088. [PMID: 29717866 DOI: 10.1021/acsami.8b03861] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Effective long-term monitoring of tumor growth is significant for the evaluation of cancer therapy. Aggregation-induced emission-active near-infrared (NIR) fluorescent organic nanoparticles (TPFE-Rho dots) are designed and synthesized for long-term in vitro cell tracking and in vivo monitoring of tumor growth. TPFE-Rho dots display the advantages of NIR fluorescent emission, large Stokes shift (∼180 nm), good biocompatibility, and high photostability. In vitro cell tracing studies demonstrate that TPFE-Rho dots can track SK-Hep-1 cells over 11 generations. In vivo optical imaging results confirm that TPFE-Rho dots can monitor tumor growth for more than 19 days in a real-time manner. This work indicates that TPFE-Rho dots could act as NIR fluorescent nanoprobes for real-time long-term in situ in vivo monitoring of tumor growth.
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Affiliation(s)
| | | | | | - Lei Wang
- School of Chemistry and Chemical Engineering , South China University of Technology , Guangzhou 510640 , P. R. China
| | - Jinqing Qu
- School of Chemistry and Chemical Engineering , South China University of Technology , Guangzhou 510640 , P. R. China
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37
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Ding C, Zhang C, Yin X, Cao X, Cai M, Xian Y. Near-Infrared Fluorescent Ag 2S Nanodot-Based Signal Amplification for Efficient Detection of Circulating Tumor Cells. Anal Chem 2018; 90:6702-6709. [PMID: 29722265 DOI: 10.1021/acs.analchem.8b00514] [Citation(s) in RCA: 50] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
The level of circulating tumor cells (CTCs) plays a critical role in tumor metastasis and personalized therapy, but it is challenging for highly efficient capture and detection of CTCs because of the extremely low concentration in peripheral blood. Herein, we report near-infrared fluorescent Ag2S nanodot-based signal amplification combing with immune-magnetic spheres (IMNs) for highly efficient magnetic capture and ultrasensitive fluorescence labeling of CTCs. The near-infrared fluorescent Ag2S nanoprobe has been successfully constructed through hybridization chain reactions using aptamer-modified Ag2S nanodots, which can extremely improve the imaging sensitivity and reduce background signal of blood samples. Moreover, the antiepithelial-cell-adhesion-molecule (EpCAM) antibody-labeled magnetic nanospheres have been used for highly capture rare tumor cells in whole blood. The near-infrared nanoprobe with signal amplification and IMNs platform exhibits excellent performance in efficient capture and detection of CTCs, which shows great potential in cancer diagnostics and therapeutics.
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Affiliation(s)
- Caiping Ding
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Department of Chemistry, School of Chemistry and Molecular Engineering , East China Normal University , Shanghai 200241 , China
| | - Cuiling Zhang
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Department of Chemistry, School of Chemistry and Molecular Engineering , East China Normal University , Shanghai 200241 , China
| | - Xueyang Yin
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Department of Chemistry, School of Chemistry and Molecular Engineering , East China Normal University , Shanghai 200241 , China
| | - Xuanyu Cao
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Department of Chemistry, School of Chemistry and Molecular Engineering , East China Normal University , Shanghai 200241 , China
| | - Meifang Cai
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Department of Chemistry, School of Chemistry and Molecular Engineering , East China Normal University , Shanghai 200241 , China
| | - Yuezhong Xian
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Department of Chemistry, School of Chemistry and Molecular Engineering , East China Normal University , Shanghai 200241 , China
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