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Xue S, Yin L, Gao S, Zhou R, Zhang Y, Jayan H, El-Seedi HR, Zou X, Guo Z. A film-like SERS aptasensor for sensitive detection of patulin based on GO@Au nanosheets. Food Chem 2024; 441:138364. [PMID: 38219369 DOI: 10.1016/j.foodchem.2024.138364] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Revised: 01/02/2024] [Accepted: 01/03/2024] [Indexed: 01/16/2024]
Abstract
Patulin (PAT) commonly contaminates fruits, posing a significant risk to human health. Therefore, a highly effective and sensitive approach in identifying PAT is warranted. Herein, a SERS aptasensor was constructed based on a two-dimensional film-like structure. GO@Au nanosheets modified with SH-cDNA were employed as capture probes, while core-shell Au@Ag nanoparticles modified with 4-MBA and SH-Apt were utilized as signal probes. Through the interaction between capture probes and signal probes, adjustable hotspots were formed, yielding a significant Raman signal. During sensing, the GO@Au-cDNA competitively attached to Au@AgNPs@MBA-Apt, resulting in an inverse relationship between PAT levels and SERS intensity. The acquired results exhibited linear responses to PAT within the range of 1-70 ng/mL, with a calculated limit of detection of 0.46 ng/mL. In addition, the SERS aptasensor exhibited satisfactory recoveries in apple samples, which aligned closely with HPLC. With high sensitivity and specificity, this method holds significant potential for PAT detection.
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Affiliation(s)
- Shanshan Xue
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Limei Yin
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Shipeng Gao
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Ruiyun Zhou
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Yang Zhang
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China; China Light Industry Key Laboratory of Food Intelligent Detection & Processing, Jiangsu University, Zhenjiang 212013, China
| | - Heera Jayan
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Hesham R El-Seedi
- Pharmacognosy Group, Department of Pharmaceutical Biosciences, BMC, Uppsala University, Box 591, SE 751 24 Uppsala, Sweden; International Research Center for Food Nutrition and Safety, Jiangsu University, Zhenjiang, 212013, China
| | - Xiaobo Zou
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China; China Light Industry Key Laboratory of Food Intelligent Detection & Processing, Jiangsu University, Zhenjiang 212013, China; International Joint Research Laboratory of Intelligent Agriculture and Agri-products Processing, Jiangsu University, Zhenjiang 212013, China
| | - Zhiming Guo
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China; China Light Industry Key Laboratory of Food Intelligent Detection & Processing, Jiangsu University, Zhenjiang 212013, China; International Joint Research Laboratory of Intelligent Agriculture and Agri-products Processing, Jiangsu University, Zhenjiang 212013, China.
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2
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Ratnaparkhi MP, Salvankar SS, Tekade AR, Kulkarni GM. Core-Shell Nanoparticles for Pulmonary Drug Delivery. Pharm Nanotechnol 2024; 12:PNT-EPUB-137691. [PMID: 38265371 DOI: 10.2174/0122117385277725231120043600] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2023] [Revised: 09/28/2023] [Accepted: 10/06/2023] [Indexed: 01/25/2024]
Abstract
Nanoscale drug delivery systems have provoked interest for application in various therapies on account of their ability to elevate the intracellular concentration of drugs inside target cells, which leads to an increase in efficacy, a decrease in dose, and dose-associated adverse effects. There are several types of nanoparticles available; however, core-shell nanoparticles outperform bare nanoparticles in terms of their reduced cytotoxicity, high dispersibility and biocompatibility, and improved conjugation with drugs and biomolecules because of better surface characteristics. These nanoparticulate drug delivery systems are used for targeting a number of organs, such as the colon, brain, lung, etc. Pulmonary administration of medicines is a more appealing method as it is a noninvasive route for systemic and locally acting drugs as the pulmonary region has a wide surface area, delicate blood-alveolar barrier, and significant vascularization. A core-shell nano-particulate drug delivery system is more effective in the treatment of various pulmonary disorders. Thus, this review has discussed the potential of several types of core-shell nanoparticles in treating various diseases and synthesis methods of core-shell nanoparticles. The methods for synthesis of core-shell nanoparticles include solid phase reaction, liquid phase reaction, gas phase reaction, mechanical mixing, microwave- assisted synthesis, sono-synthesis, and non-thermal plasma technology. The basic types of core-shell nanoparticles are metallic, magnetic, polymeric, silica, upconversion, and carbon nanomaterial- based core-shell nanoparticles. With this special platform, it is possible to integrate the benefits of both core and shell materials, such as strong serum stability, effective drug loading, adjustable particle size, and immunocompatibility.
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Affiliation(s)
- Mukesh P Ratnaparkhi
- Department of Pharmaceutics, Marathwada Mitra Mandal's College of Pharmacy, Thergaon, Pune, Maharashtra, 411033, India
| | - Shailendra S Salvankar
- Department of Pharmaceutics, Marathwada Mitra Mandal's College of Pharmacy, Thergaon, Pune, Maharashtra, 411033, India
| | - Avinash R Tekade
- Department of Pharmaceutics, Marathwada Mitra Mandal's College of Pharmacy, Thergaon, Pune, Maharashtra, 411033, India
| | - Gajanan M Kulkarni
- Department of Pharmaceutics, Marathwada Mitra Mandal's College of Pharmacy, Thergaon, Pune, Maharashtra, 411033, India
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3
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Nyabadza A, McCarthy É, Makhesana M, Heidarinassab S, Plouze A, Vazquez M, Brabazon D. A review of physical, chemical and biological synthesis methods of bimetallic nanoparticles and applications in sensing, water treatment, biomedicine, catalysis and hydrogen storage. Adv Colloid Interface Sci 2023; 321:103010. [PMID: 37804661 DOI: 10.1016/j.cis.2023.103010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2023] [Revised: 08/30/2023] [Accepted: 09/24/2023] [Indexed: 10/09/2023]
Abstract
This article provides an in-depth analysis of various fabrication methods of bimetallic nanoparticles (BNP), including chemical, biological, and physical techniques. The review explores BNP's diverse uses, from well-known applications such as sensing water treatment and biomedical uses to less-studied areas like breath sensing for diabetes monitoring and hydrogen storage. It cites results from over 1000 researchers worldwide and >300 peer-reviewed articles. Additionally, the article discusses current trends, actionable recommendations, and the importance of synthetic analysis for industry players looking to optimize manufacturing techniques for specific applications. The article also evaluates the pros and cons of various fabrication methods, highlighting the potential of plant extract synthesis for mass production of capped BNPs. However, it warns that this method may not be suitable for certain applications requiring ligand-free surfaces. In contrast, physical methods like laser ablation offer better control and reactivity, especially for applications where ligand-free surfaces are critical. The report underscores the environmental benefits of plant extract synthesis compared to chemical methods that use hazardous chemicals and pose risks to extraction, production, and disposal. The article emphasizes the need for life cycle assessment (LCA) articles in the literature, given the growing volume of research on nanotechnology materials. This article caters to researchers at all stages and applies to various fields applying nanomaterials.
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Affiliation(s)
- Anesu Nyabadza
- I-Form Advanced Manufacturing Centre Research, Dublin City University, Glasnevin, Dublin 9, Ireland; EPSRC & SFI Centre for Doctoral Training (CDT) in Advanced Metallic Systems, School of Mechanical & Manufacturing Engineering, School of Chemical Sciences, Dublin City University, Glasnevin, Dublin 9, Ireland; Advanced Processing Technology Research Centre, Dublin City University, Glasnevin, Dublin 9, Ireland.
| | - Éanna McCarthy
- I-Form Advanced Manufacturing Centre Research, Dublin City University, Glasnevin, Dublin 9, Ireland; Advanced Processing Technology Research Centre, Dublin City University, Glasnevin, Dublin 9, Ireland
| | - Mayur Makhesana
- Mechanical Engineering Department, Institute of Technology, Nirma University, Ahmedabad, Gujarat 382481, India
| | - Saeid Heidarinassab
- I-Form Advanced Manufacturing Centre Research, Dublin City University, Glasnevin, Dublin 9, Ireland; EPSRC & SFI Centre for Doctoral Training (CDT) in Advanced Metallic Systems, School of Mechanical & Manufacturing Engineering, School of Chemical Sciences, Dublin City University, Glasnevin, Dublin 9, Ireland; Advanced Processing Technology Research Centre, Dublin City University, Glasnevin, Dublin 9, Ireland
| | - Anouk Plouze
- Advanced Processing Technology Research Centre, Dublin City University, Glasnevin, Dublin 9, Ireland; Conservatoire National des arts et Métiers (CNAM), 61 Rue du Landy, 93210 Saint-Denis, France
| | - Mercedes Vazquez
- I-Form Advanced Manufacturing Centre Research, Dublin City University, Glasnevin, Dublin 9, Ireland; EPSRC & SFI Centre for Doctoral Training (CDT) in Advanced Metallic Systems, School of Mechanical & Manufacturing Engineering, School of Chemical Sciences, Dublin City University, Glasnevin, Dublin 9, Ireland; Advanced Processing Technology Research Centre, Dublin City University, Glasnevin, Dublin 9, Ireland
| | - Dermot Brabazon
- I-Form Advanced Manufacturing Centre Research, Dublin City University, Glasnevin, Dublin 9, Ireland; EPSRC & SFI Centre for Doctoral Training (CDT) in Advanced Metallic Systems, School of Mechanical & Manufacturing Engineering, School of Chemical Sciences, Dublin City University, Glasnevin, Dublin 9, Ireland; Advanced Processing Technology Research Centre, Dublin City University, Glasnevin, Dublin 9, Ireland
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4
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Feng W, Wang Z, Campanella OH, Zhang T, Miao M. Fabrication of phytoglycogen-derived core-shell nanoparticles: Structure and characterizations. Food Chem 2023; 423:136317. [PMID: 37182493 DOI: 10.1016/j.foodchem.2023.136317] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2022] [Revised: 04/12/2023] [Accepted: 05/03/2023] [Indexed: 05/16/2023]
Abstract
The objective of this work was to investigate the fabrication of core-shell nanoparticles using phosphorylase-catalyzed chain extension of phytoglycogen, and to analyze the changes of structure and characterizations in detail. During the glucosylation reaction, the inorganic phosphate increased substantially up to 2.3 mg/mL in the initial 12 h, and then increased incrementally to 2.5 mg/mL at 24 h. The similar to trends was observed for increasing Mw and Rz over time, due to glucosyl transfers on the surface chain to form a corona around the phytoglycogen core with a larger size. Phosphorylase modification increases the percentages of longer chain fractions and the average chain length increased from degree of polymerization (DP) 11.6 to DP 48.2. The modified phytoglycogen exhibited the characteristic of B-type crystalline structure, indicating that the specific core-shell nanoparticle with inner amorphous nature and outer crystalline layer. The above results revealed that the potentiality of enzymatic chain elongation of phytoglycogen to design novel core-shell nanoparticle with tailor-made structure and functionality.
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Affiliation(s)
- Wenjuan Feng
- State Key Laboratory of Food Science & Technology, Jiangnan University, 1800 Lihu Avenue, Wuxi, Jiangsu 214122, PR China
| | - Ziqi Wang
- State Key Laboratory of Food Science & Technology, Jiangnan University, 1800 Lihu Avenue, Wuxi, Jiangsu 214122, PR China
| | - Osvaldo H Campanella
- State Key Laboratory of Food Science & Technology, Jiangnan University, 1800 Lihu Avenue, Wuxi, Jiangsu 214122, PR China; Whistler Center for Carbohydrate Research, Purdue University, 745 Agriculture Mall Drive, West Lafayette, IN 47907, United States
| | - Tao Zhang
- State Key Laboratory of Food Science & Technology, Jiangnan University, 1800 Lihu Avenue, Wuxi, Jiangsu 214122, PR China
| | - Ming Miao
- State Key Laboratory of Food Science & Technology, Jiangnan University, 1800 Lihu Avenue, Wuxi, Jiangsu 214122, PR China.
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5
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Zhang WS, Liu XP, Yue S, Wang YN, Wang Y, Xu ZR. In-situ and amplification-free imaging of hERG ion channels at single-cell level using a unique core-molecule-shell-secondary antibody SERS nanoprobe. Talanta 2023; 253:123900. [PMID: 36095940 DOI: 10.1016/j.talanta.2022.123900] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Revised: 08/23/2022] [Accepted: 08/26/2022] [Indexed: 12/13/2022]
Abstract
Research on ion channels and their monoclonal antibodies plays a critical role in drug development and disease diagnosis. The current ion channel researches are often not conducted in the microenvironment for cells survival, which restricts the mechanism study of the links between the cell structure and the ion channel function. In this work, we synthesized gold core-4-mercaptobenzonitrile-sliver shell-goat anti-rabbit immunoglobulin G (Au@4-MBN@Ag@IgG) nanoparticles as surface-enhanced Raman scattering (SERS) nanoprobes for investigating the human ether-a-go-go related gene (hERG) potassium ion channel in cell membranes. This is the first attempt to study ion channels using SERS. Due to the unique core-molecule-shell structure and the silver shell of nanoprobes, strong and stable SERS signal was obtained. With the help of antibodies, the Au@4-MBN@Ag@IgG nanoprobes were captured by hERG antibodies and then bonded with hERG ion channels based on the sandwich immune response. The reporter molecule, 4-MBN, displayed a strong and sharp characteristic peak at 2233 cm-1 in the Raman silent region. The intensity of this peak denoted the concentration of antibodies and the expression of ion channel proteins. We successfully applied this amplification-free method for in-situ imaging the distribution of the hERG ion channel on the transfected HEK293 cell surface at the single-cell level. This hERG ion channel profiling strategy promises a maneuverable tool for ion channel research.
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Affiliation(s)
- Wen-Shu Zhang
- Research Center for Analytical Sciences, Northeastern University, Shenyang, 110819, PR China
| | - Xiao-Peng Liu
- Research Center for Analytical Sciences, Northeastern University, Shenyang, 110819, PR China
| | - Shuai Yue
- Department of Cell Biology, Key Laboratory of Cell Biology, Ministry of Public Health, Key Laboratory of Medical Cell Biology, Ministry of Education, China Medical University, Shenyang, 110122, PR China
| | - Ya-Ning Wang
- Research Center for Analytical Sciences, Northeastern University, Shenyang, 110819, PR China
| | - Yue Wang
- Research Center for Analytical Sciences, Northeastern University, Shenyang, 110819, PR China
| | - Zhang-Run Xu
- Research Center for Analytical Sciences, Northeastern University, Shenyang, 110819, PR China.
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6
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Campanile R, Elia VC, Minopoli A, Ud Din Babar Z, di Girolamo R, Morone A, Sakač N, Velotta R, Della Ventura B, Iannotti V. Magnetic micromixing for highly sensitive detection of glyphosate in tap water by colorimetric immunosensor. Talanta 2023; 253:123937. [PMID: 36179557 DOI: 10.1016/j.talanta.2022.123937] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2022] [Revised: 09/06/2022] [Accepted: 09/09/2022] [Indexed: 12/13/2022]
Abstract
Glyphosate is the most widely used herbicide in the world and, in view of its toxicity, there is a quest for easy-to-use, but reliable methods to detect it in water. To address this issue, we realized a simple, rapid, and highly sensitive immunosensor based on gold coated magnetic nanoparticles (MNPs@Au) to detect glyphosate in tap water. Not only the gold shell provided a sensitive optical transduction of the biological signal - through the shift of the local surface plasmon resonance (LSPR) entailed by the nanoparticle aggregation -, but it also allowed us to use an effective photochemical immobilization technique to tether oriented antibodies straight on the nanoparticles surface. While such a feature led to aggregates in which the nanoparticles were at close proximity each other, the magnetic properties of the core offered us an efficient tool to steer the nanoparticles by a rotating magnetic field. As a result, the nanoparticle aggregation in presence of the target could take place at higher rate (enhanced diffusion) with significant improvement in sensitivity. As a matter of fact, the combination of plasmonic and magnetic properties within the same nanoparticles allowed us to realize a colorimetric biosensor with a limit of detection (LOD) of 20 ng∙L-1.
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Affiliation(s)
- Raffaele Campanile
- Department of Physics "E. Pancini", University of Naples Federico II, Via Cintia 26, 80126, Naples, Italy
| | - Valerio Cosimo Elia
- Department of Physics "E. Pancini", University of Naples Federico II, Via Cintia 26, 80126, Naples, Italy
| | - Antonio Minopoli
- Department of Physics "E. Pancini", University of Naples Federico II, Via Cintia 26, 80126, Naples, Italy
| | - Zaheer Ud Din Babar
- Department of Physics "E. Pancini", University of Naples Federico II, Via Cintia 26, 80126, Naples, Italy; Scuola Superiore Meridionale (SSM), University of Naples Federico II, Largo S. Marcellino,10, 80138, Italy
| | - Rocco di Girolamo
- Department of Chemistry, University of Naples Federico II, Via Cintia 26, 80126, Naples, Italy
| | - Antonio Morone
- CNR - Istituto di Struttura Della Materia - Unità di Tito-Scalo Zona Industriale di Tito Scalo, 85050, Potenza, Italy
| | - Nikola Sakač
- Faculty of Geotechnical Engineering, University of Zagreb, Hallerova 7, 42000, Varaždin, Croatia
| | - Raffaele Velotta
- Department of Physics "E. Pancini", University of Naples Federico II, Via Cintia 26, 80126, Naples, Italy
| | - Bartolomeo Della Ventura
- Department of Physics "E. Pancini", University of Naples Federico II, Via Cintia 26, 80126, Naples, Italy.
| | - Vincenzo Iannotti
- Department of Physics "E. Pancini", University of Naples Federico II, Via Cintia 26, 80126, Naples, Italy; CNR - SPIN (Institute for Superconductors, Oxides and Other Innovative Materials and Devices), Piazzale V. Tecchio 80, 80125, Naples, Italy
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7
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Andretto V, Repellin M, Pujol M, Almouazen E, Sidi-Boumedine J, Granjon T, Zhang H, Remaut K, Jordheim LP, Briançon S, Keil IS, Vascotto F, Walzer KC, Sahin U, Haas H, Kryza D, Lollo G. Hybrid core-shell particles for mRNA systemic delivery. J Control Release 2023; 353:1037-1049. [PMID: 36442614 DOI: 10.1016/j.jconrel.2022.11.042] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Revised: 11/15/2022] [Accepted: 11/22/2022] [Indexed: 12/24/2022]
Abstract
mRNA based infectious disease vaccines have opened the venue for development of novel nucleic acids-based therapeutics. For all mRNA therapeutics dedicated delivery systems are required, where different functionalities and targeting abilities need to be optimized for the respective applications. One option for advanced formulations with tailored properties are lipid-polymer hybrid nanoparticles with complex nanostructure, which allow to combine features of several already well described nucleic acid delivery systems. Here, we explored hyaluronic acid (HA) as coating of liposome-mRNA complexes (LRCs) to investigate effects of the coating on surface charge, physicochemical characteristics and biological activity. HA was electrostatically attached to positively charged complexes, forming hybrid LRCs (HLRCs). At different N/P ratios, physico-chemical characterization of the two sets of particles showed similarity in size (around 200 nm) and mRNA binding abilities, while the presence of the HA shell conferred a negative surface charge to otherwise positive complexes. High transfection efficiency of LRCs and HLRCs in vitro has been obtained in THP-1 and human monocytes derived from PBMC, an interesting target cell population for cancer and immune related pathologies. In mice, quantitative biodistribution of radiolabeled LRC and HLRC particles, coupled with bioluminescence studies to detect the protein translation sites, hinted towards both particles' accumulation in the hepatic reticuloendothelial system (RES). mRNA translated proteins though was found mainly in the spleen, a major source for immune cells, with preference for expression in macrophages. The results showed that surface modifications of liposome-mRNA complexes can be used to fine-tune nanoparticle physico-chemical characteristics. This provides a tool for assembly of stable and optimized nanoparticles, which are prerequisite for future therapeutic interventions using mRNA-based nanomedicines.
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Affiliation(s)
- Valentina Andretto
- Univ. Lyon, Université Claude Bernard Lyon 1, CNRS, LAGEPP UMR 5007, 43 Boulevard du 11 Novembre 1918, F-69622, Villeurbanne, France
| | - Mathieu Repellin
- Univ. Lyon, Université Claude Bernard Lyon 1, CNRS, LAGEPP UMR 5007, 43 Boulevard du 11 Novembre 1918, F-69622, Villeurbanne, France
| | - Marine Pujol
- Univ. Lyon, Université Claude Bernard Lyon 1, CNRS, LAGEPP UMR 5007, 43 Boulevard du 11 Novembre 1918, F-69622, Villeurbanne, France
| | - Eyad Almouazen
- Univ. Lyon, Université Claude Bernard Lyon 1, CNRS, LAGEPP UMR 5007, 43 Boulevard du 11 Novembre 1918, F-69622, Villeurbanne, France
| | - Jacqueline Sidi-Boumedine
- Univ. Lyon, Université Claude Bernard Lyon 1, CNRS, LAGEPP UMR 5007, 43 Boulevard du 11 Novembre 1918, F-69622, Villeurbanne, France
| | - Thierry Granjon
- Institut de Chimie et Biochimie Moléculaires et Supramoléculaires, ICBMS UMR 5246, Université de Lyon, Université Lyon 1, CNRS, F-69622 Lyon, France
| | - Heyang Zhang
- Ghent Research Group on Nanomedicine, Laboratory of General Biochemistry and Physical Pharmacy, Faculty of Pharmaceutical Sciences, Ghent University, 9000 Ghent, Belgium
| | - Katrien Remaut
- Ghent Research Group on Nanomedicine, Laboratory of General Biochemistry and Physical Pharmacy, Faculty of Pharmaceutical Sciences, Ghent University, 9000 Ghent, Belgium
| | - Lars Petter Jordheim
- Univ. Lyon, Université Claude Bernard Lyon 1, INSERM 1052, CNRS 5286, Centre Léon Bérard, Centre de Recherche en Cancérologie de Lyon, Lyon 69008, France
| | - Stéphanie Briançon
- Univ. Lyon, Université Claude Bernard Lyon 1, CNRS, LAGEPP UMR 5007, 43 Boulevard du 11 Novembre 1918, F-69622, Villeurbanne, France
| | - Isabell Sofia Keil
- TRON Translational Oncology at the University Medical Center of the Johannes Gutenberg University gGmbH, Mainz, Germany
| | - Fulvia Vascotto
- TRON Translational Oncology at the University Medical Center of the Johannes Gutenberg University gGmbH, Mainz, Germany
| | | | - Ugur Sahin
- BioNTech SE, An der Goldgrube 12, 55131 Mainz, Germany
| | - Heinrich Haas
- BioNTech SE, An der Goldgrube 12, 55131 Mainz, Germany
| | - David Kryza
- Univ. Lyon, Université Claude Bernard Lyon 1, CNRS, LAGEPP UMR 5007, 43 Boulevard du 11 Novembre 1918, F-69622, Villeurbanne, France; Hospices Civils de Lyon, 69437 Lyon, France
| | - Giovanna Lollo
- Univ. Lyon, Université Claude Bernard Lyon 1, CNRS, LAGEPP UMR 5007, 43 Boulevard du 11 Novembre 1918, F-69622, Villeurbanne, France.
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8
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Yin L, You T, El-Seedi HR, El-Garawani IM, Guo Z, Zou X, Cai J. Rapid and sensitive detection of zearalenone in corn using SERS-based lateral flow immunosensor. Food Chem 2022; 396:133707. [PMID: 35853376 DOI: 10.1016/j.foodchem.2022.133707] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2022] [Revised: 07/12/2022] [Accepted: 07/12/2022] [Indexed: 11/29/2022]
Abstract
Zearalenone (ZEN) is a universal mycotoxin contaminant in corn and its products. A surface-enhanced Raman scattering (SERS) based test strip was proposed for the detection of ZEN, which had the advantages of simplicity, rapidity, and high sensitivity. Core-shell Au@AgNPs with embedded reporter molecules (4-MBA) were synthesized as SERS nanoprobe, which exhibited excellent SERS signals and high stability. The detection range of ZEN for corn samples was 10-1000 μg/kg with the limit of detection (LOD) of 3.6 μg/kg, which is far below the recommended tolerable level (60 μg/kg). More importantly, the SERS method was verified by HPLC in the application on corn samples contaminated with ZEN, and the coincidence rates were in the range of 86.06%-111.23%, suggesting a high accuracy of the SERS assay. Therefore, the SERS-based test strip with an analysis time of less than 15 min is a promising tool for accurate and rapid detection of ZEN-field contamination.
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Affiliation(s)
- Limei Yin
- Key Laboratory of Modern Agricultural Equipment and Technology, Ministry of Education, School of Agricultural Engineering, Jiangsu University, Zhenjiang 212013, China; School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China.
| | - Tianyan You
- Key Laboratory of Modern Agricultural Equipment and Technology, Ministry of Education, School of Agricultural Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Hesham R El-Seedi
- Pharmacognosy Group, Department of Pharmaceutical Biosciences, BMC, Uppsala University, Box 591, SE-751 24 Uppsala, Sweden
| | - Islam M El-Garawani
- Department of Zoology, Faculty of Science, Menoufia University, Menoufia 32511, Egypt
| | - Zhiming Guo
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China; International Joint Research Laboratory of Intelligent Agriculture and Agri-products Processing (Jiangsu University), Jiangsu Education Department, Zhenjiang 212013, China
| | - Xiaobo Zou
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China; International Joint Research Laboratory of Intelligent Agriculture and Agri-products Processing (Jiangsu University), Jiangsu Education Department, Zhenjiang 212013, China
| | - Jianrong Cai
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China.
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9
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Kumar D, Gautam A, Rohatgi S, Kundu PP. Synthesis of vildagliptin loaded acrylamide-g-psyllium/alginate-based core-shell nanoparticles for diabetes treatment. Int J Biol Macromol 2022; 218:82-93. [PMID: 35841963 DOI: 10.1016/j.ijbiomac.2022.07.066] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2022] [Revised: 07/08/2022] [Accepted: 07/08/2022] [Indexed: 01/13/2023]
Abstract
Diabetes mellitus has become a major public health concern all over the world. Vildagliptin is one of the antidiabeticdrug that can overcome the existing problem of this prevalent disease. Present study aims to synthesize and investigate the role of vildagliptin-loaded core-shell nanoparticle of grafted psyllium and alginate (VG@P/A-NPs) in anti-diabetes application. FTIR, SEM, XRD, 13CNMR and zeta analyzer were used for characterization of the core-shell nanoparticles (VG@P/A-NPs). The synthesized acrylamide-grafted-psyllium was also optimized through varying grafting parameters such as acrylamide and ceric ammonium nitrate (CAN) concentration, time and temperature to obtain the maximum yield of acrylamide-grafted-psyllium. Rheological analysis of pure psyllium, grafted psyllium and alginate were also performed. For biological studies, the first cytotoxicity of grafted psyllium and VG@P/A-NPs were examined on human lung adenocarcinoma cell line A549 in which it was observed that VG@P/A-NPs did not exhibited any toxicity. The antidiabetic potential of VG@P/A-NPs was investigated by glucose uptake assay, using TNF-α induced insulin resistance skeletal cell model using mouse muscle L6 cell line. The insulin signaling impaired cell line displayed a highly significant (p < 0.0001) dose-dependent increase in glucose uptake after treatment with increasing doses of VG@P/A-NPs.The drug release behavior of VG@P/A-NPs was examined at various pH and the highest drug release (98 %) was obtained at pH (7.4). The drug release kinetic data was following the Higuchi (R2 = 0.9848) kinetic model, suggesting the release of drug from vildagliptin-loaded grafted psyllium-alginate core-shell nanoparticles (VG@P/A-NPs) as a square root of time-dependent process and diffusion controlled. This study provides an economical and environment-friendly approach towards the synthesis of VG@P/A-NPs with antidiabetes applications.
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Affiliation(s)
- Deepak Kumar
- Department of Chemical Engineering, Indian Institute of Technology Roorkee, India
| | - Arti Gautam
- Department of Biochemistry, Institute of Science, Banaras Hindu University, Varanasi, India
| | - Soma Rohatgi
- Department of Biosciences and Bioengineering, Indian Institute of Technology Roorkee, India
| | - Patit P Kundu
- Department of Chemical Engineering, Indian Institute of Technology Roorkee, India.
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10
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Cho SK, Lee RT, Hwang YH, Kwon YJ. Chemically Tuned Intracellular Gene Delivery by Core-Shell Nanoparticles: Effects of Proton Buffering, Acid Degradability, and Membrane Disruption. ChemMedChem 2022; 17:e202100718. [PMID: 35060681 PMCID: PMC9779904 DOI: 10.1002/cmdc.202100718] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2021] [Revised: 01/18/2022] [Indexed: 12/25/2022]
Abstract
Nanoparticles consisting of a condensed nucleic acid core surrounded by protective layers which aid to overcome extracellular and intracellular hurdles to gene delivery (i. e., core-shell nanoparticles, CSNPs) synthetically mimic viruses. The outer shells shield the core and are particularly designed to enable facilitated release of the gene payload into the cytoplasm, the major limiting step in intracellular gene delivery. The hypothetical proton sponge effect and degradability in response to a stimulus (i. e., mildly acidic pH in the endosome) are two prevailing, although contested, principles in designing effective carriers for intracellular gene delivery via endosomal escape. Utilizing the highly flexible chemical-tuning of the polymeric shell via surface-initiated photo-polymerization of the various monomers at different molecular ratios, the effects of proton buffering capacity, acid-degradability, and endosomal membrane-lysis property on intracellular delivery of plasmid DNA by CSNPs were investigated. This study demonstrated the equivalently critical roles of proton buffering and acid-degradability in achieving efficient intracellular gene delivery, independent of cellular uptake. Extended proton buffering resulted in further improved transfection as long as the core structure was not compromised. The results of the study present a promising synthetic strategy to the development of an efficient, chemically-tunable gene delivery carrier.
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Affiliation(s)
- Soo Kyung Cho
- Crystal Bank PNU, Pusan National University, 2222 Nano Building, Samnangjin-ro, Miryang, Gyeongsangnam-do 50463 (Republic of Korea)
| | - Rebecca T. Lee
- Department of Biomedical Engineering and Medical Scientist Training Program, University of California, Irvine, B200 Sprague Hall, Irvine, CA 92697-3958 (USA)
| | - Yoon-Hwae Hwang
- Department of Nano Energy Engineering, Pusan National University, Pusandaehak-ro 63 beon-gil 2, Jangjeon-dong, Geumjung-gu, Busan 46241 (Republic of Korea)
| | - Young Jik Kwon
- Departments of Pharmaceutical Science, Chemical and Biomolecular Engineering, Biomedical Engineering, and Molecular Biology and Biochemistry University of California, Irvine, 132 Sprague Hall, Irvine, CA 92697-3958 (USA)
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11
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Tian D, Xiang W, Wang H, Jiang W, Li T, Yang M. Optical assay using B-doped core-shell Fe@BC nanozyme for determination of alanine aminotransferase. Mikrochim Acta 2022; 189:147. [PMID: 35299258 DOI: 10.1007/s00604-021-05056-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2021] [Accepted: 10/07/2021] [Indexed: 12/01/2022]
Abstract
B-doped core-shell Fe@BC nanozyme was synthesized. The peroxidase (POD) like activity of Fe@BC nanozyme was studied and utilized for detecting the activity of alanine aminotransferase (ALT). In the presence of ALT as well as ALT co-substrates L-alanine and α-ketoglutarate, L-glutamate is generated. The following catalytic oxidation of L-glutamate by glutamate oxidase leads to the generation of H2O2. The POD-like activity of Fe@BC can oxidize 3,3',5,5'-tetramethylbenzidine (TMB) to oxTMB in the presence of H2O2, generating a blue-colored compound. Through the detection of the amount of H2O2 generated, ALT activity can be determined through measuring the absorbance intensity variation at 450 nm. The limit of detection of the assay is 4 U/L, with a linear range from 10 to 1000 U/L. For human serum samples, the ALT levels determined by our assay are comparable to those determined by the hospital with a correlation coefficient of 0.991, demonstrating the reliability of our assay results.
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Affiliation(s)
- Dazhi Tian
- Key Laboratory of Transplantation, Chinese Academy of Medical Sciences, Beijing, 100730, China.,Tianjin Key Laboratory for Organ Transplantation, Department of Liver Transplantation, Tianjin First Center Hospital, Tianjin, 300192, China
| | - Wen Xiang
- Tianjin Key Laboratory for Organ Transplantation, Department of Liver Transplantation, Tianjin First Center Hospital, Tianjin, 300192, China
| | - Hao Wang
- Tianjin Key Laboratory for Organ Transplantation, Department of Liver Transplantation, Tianjin First Center Hospital, Tianjin, 300192, China
| | - Wentao Jiang
- Key Laboratory of Transplantation, Chinese Academy of Medical Sciences, Beijing, 100730, China. .,Tianjin Key Laboratory for Organ Transplantation, Department of Liver Transplantation, Tianjin First Center Hospital, Tianjin, 300192, China.
| | - Ting Li
- Department of Organ Transplantation Center, The Second Xiang-Ya Hospital, Central South University, Changsha, 410011, China.
| | - Minghui Yang
- Hunan Provincial Key Laboratory of Micro & Nano Materials Interface Science, College of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, China
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12
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Duan J, Bao C, Xie Y, Guo H, Liu Y, Li J, Liu R, Li P, Bai J, Yan Y, Mu L, Li X, Wang G, Lu W. Targeted core-shell nanoparticles for precise CTCF gene insert in treatment of metastatic breast cancer. Bioact Mater 2021; 11:1-14. [PMID: 34938908 DOI: 10.1016/j.bioactmat.2021.10.007] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2021] [Revised: 09/27/2021] [Accepted: 10/01/2021] [Indexed: 12/13/2022] Open
Abstract
Clustered regularly interspaced short palindromic repeats (CRISPR) technology emerges a remarkable potential for cure of refractory cancer like metastatic breast cancer. However, how to efficiently deliver the CRISPR system with non-viral carrier remains a major issue to be solved. Here, we report a kind of targeted core-shell nanoparticles (NPs) carrying dual plasmids (pHR-pCas9) for precise CCCTC-binding factor (CTCF) gene insert to circumvent metastatic breast cancer. The targeted core-shell NPs carrying pHR-pCas9 can accomplish γGTP-mediated cellular uptake and endosomal escape, facilitate the precise insert and stable expression of CTCF gene, inhibit the migration, metastasis, and colonization of metastatic breast cancer cells. Besides, the finding further reveals that the inhibitory mechanism of metastasis could be associated with up-regulating CTCF protein, followed by down-regulating stomatin (STOM) protein. The study offers a universal nanostrategy enabling the robust non-viral delivery of gene-editing system for treatment of severe illness.
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Affiliation(s)
- Jialun Duan
- State Key Laboratory of Natural and Biomimetic Drugs, Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery Systems, And School of Pharmaceutical Sciences, Peking University, Beijing, 100191, China
| | - Chunjie Bao
- State Key Laboratory of Natural and Biomimetic Drugs, Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery Systems, And School of Pharmaceutical Sciences, Peking University, Beijing, 100191, China
| | - Ying Xie
- State Key Laboratory of Natural and Biomimetic Drugs, Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery Systems, And School of Pharmaceutical Sciences, Peking University, Beijing, 100191, China
| | - Haitao Guo
- State Key Laboratory of Natural and Biomimetic Drugs, Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery Systems, And School of Pharmaceutical Sciences, Peking University, Beijing, 100191, China
| | - Yixuan Liu
- State Key Laboratory of Natural and Biomimetic Drugs, Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery Systems, And School of Pharmaceutical Sciences, Peking University, Beijing, 100191, China
| | - Jianwei Li
- State Key Laboratory of Natural and Biomimetic Drugs, Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery Systems, And School of Pharmaceutical Sciences, Peking University, Beijing, 100191, China.,Academy for Advanced Interdisciplinary Studies, Peking University, Beijing, 100875, China
| | - Rui Liu
- State Key Laboratory of Natural and Biomimetic Drugs, Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery Systems, And School of Pharmaceutical Sciences, Peking University, Beijing, 100191, China
| | - Peishan Li
- State Key Laboratory of Natural and Biomimetic Drugs, Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery Systems, And School of Pharmaceutical Sciences, Peking University, Beijing, 100191, China
| | - Jing Bai
- State Key Laboratory of Natural and Biomimetic Drugs, Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery Systems, And School of Pharmaceutical Sciences, Peking University, Beijing, 100191, China
| | - Yan Yan
- State Key Laboratory of Natural and Biomimetic Drugs, Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery Systems, And School of Pharmaceutical Sciences, Peking University, Beijing, 100191, China
| | - Limin Mu
- State Key Laboratory of Natural and Biomimetic Drugs, Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery Systems, And School of Pharmaceutical Sciences, Peking University, Beijing, 100191, China
| | - Xueqi Li
- State Key Laboratory of Natural and Biomimetic Drugs, Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery Systems, And School of Pharmaceutical Sciences, Peking University, Beijing, 100191, China
| | - Guiling Wang
- State Key Laboratory of Natural and Biomimetic Drugs, Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery Systems, And School of Pharmaceutical Sciences, Peking University, Beijing, 100191, China
| | - Wanliang Lu
- State Key Laboratory of Natural and Biomimetic Drugs, Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery Systems, And School of Pharmaceutical Sciences, Peking University, Beijing, 100191, China
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13
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Wang K, Li J. Reliable SERS detection of pesticides with a large-scale self-assembled Au@4-MBA@Ag nanoparticle array. Spectrochim Acta A Mol Biomol Spectrosc 2021; 263:120218. [PMID: 34332241 DOI: 10.1016/j.saa.2021.120218] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/12/2021] [Revised: 07/16/2021] [Accepted: 07/18/2021] [Indexed: 06/13/2023]
Abstract
The fabrication of sensitive and reliable interfacial plasmonic platform for measuring chemical contaminants in various phases is an exciting topic in the food industry and for environment monitoring. In this study, a high-performance surface-enhanced Raman spectroscopy (SERS) analytic platform was developed through self-assembly of the gold@4-mercaptobenzoic acid@silver nanoparticles (Au@4-MBA@Ag NPs) at the cyclohexane/water interface. By addition of the inducer ethanol, the Au@4-MBA@Ag NPs in aqueous phase was effectively migrated to the biphasic interface, forming a large-scale close-packed nanoparticle array. The average gap between adjacent nanoparticles was smaller than 3 nm, where intensive SERS "hot spots" were created for high-sensitive detection. Furthermore, using the sandwiched 4-MBA molecule as the internal standard to correct the Raman signal fluctuations, the point-to-point and batch-to-batch reproducibility of Au@4-MBA@Ag array were improved with lower relative standard deviation (RSD) values of 8.84% and 14.97%, respectively, and pesticides (thiram and thiabendazole) analysis in both aqueous and organic phases were achieved with higher accuracy (R2 of 0.986 and 0.990) as compared with those without 4-MBA correction (R2 of 0.867 and 0.974). The high-throughput fabrication of the self-assembled nanoparticle array is a promising approach for development of a sensitive and reliable SERS platform for chemical contaminants monitoring in multiphase.
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Affiliation(s)
- Kaiqiang Wang
- College of Food Science and Engineering, Ocean University of China, Qingdao, Shandong 266003, China.
| | - Jinjie Li
- Institute of Quartermaster Engineering and Technology, Academy of Military Sciences PLA China, Beijing 100010, China
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14
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Miri Z, Elhami S, Zare-Shahabadi V, Jalali Jahromi H. Fe 3O 4@PDA@PANI core-shell nanocomposites as a new adsorbent for simultaneous preconcentration of Tartrazine and Sunset Yellow by ultrasonic-assisted dispersive micro solid-phase extraction. Spectrochim Acta A Mol Biomol Spectrosc 2021; 262:120130. [PMID: 34265733 DOI: 10.1016/j.saa.2021.120130] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/04/2021] [Revised: 05/07/2021] [Accepted: 06/25/2021] [Indexed: 06/13/2023]
Abstract
In this research, novel magnetic Fe3O4@PDA@PANI core-shell nanoparticles were designed and fabricated as an efficient adsorbent in the service of ultrasound-assisted dispersive micro-solid phase extraction for simultaneous preconcentration of Sunset Yellow (SY) and Tartrazine (Tar) before UV-Vis spectrophotometric detection. This adsorbent was fully characterized by Fourier Transform Infrared (FT-IR) spectroscopy, Scanning Electron Microscopy (SEM), Transmission Electron Microscopy (TEM), and Energy Dispersive X-ray (EDX) analysis. To overcome the spectral overlapping of SY and Tar dyes, the derivative spectrophotometric method was successfully used for the simultaneous detection of dyes in their binary solutions. The operating parameters affecting preconcentration efficiency and spectrophotometric determination were optimized. Under optimal conditions, the limit of detections (LOD) was obtained 0.2 and 0.5 ng mL-1 for SY and Tar, respectively. The adsorption capacity and reusability of core-shell nanoparticles were significant. The satisfactory results of analysis of a few real samples indicate that the method is very favored in the analysis of various complex matrices.
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Affiliation(s)
- Zahra Miri
- Department of Chemistry, Mahshahr Branch, Islamic Azad University, Mahshahr, Iran
| | - Shahla Elhami
- Department of Chemistry, Ahvaz Branch, Islamic Azad University, Ahvaz, Iran.
| | - Vahid Zare-Shahabadi
- Department of Chemistry, Mahshahr Branch, Islamic Azad University, Mahshahr, Iran
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15
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Ahmad A, Ansari MM, AlAsmari AF, Ali N, Maqbool MT, Raza SS, Khan R. Dose dependent safety implications and acute intravenous toxicity of aminocellulose-grafted-polycaprolactone coated gelatin nanoparticles in mice. Int J Biol Macromol 2021; 192:1150-1159. [PMID: 34653441 DOI: 10.1016/j.ijbiomac.2021.10.028] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2021] [Revised: 09/27/2021] [Accepted: 10/03/2021] [Indexed: 10/20/2022]
Abstract
Polymeric nanoparticles (NPs) are the most widely researched nanoformulations and gained broad acceptance in nanotherapeutics for targeted drug delivery and theranostics. However, lack of regulations, guidelines, harmonized standards, and limitations with their employability in clinical circumstances necessitates an in-depth understanding of their toxicology. Here, we examined the in-vivo toxicity of core-shell polymeric NPs made up of gelatin core coated with an outer layer of aminocellulose-grafted polycaprolactone (PCL-AC) synthesized for drug delivery purposes in inflammatory disorders. Nanoparticles were administered intravenously in Swiss albino mice, in multiple dosing (10, 25, and 50 mg/kg body weight) and outcomes of serum biochemistry analysis and histopathology evaluation exhibited that the highest 50 mg/kg administration of NPs altered biochemistry and histopathology aspects of vital organs, while doses of 10 and 25 mg/kg were safe and biocompatible. Further, mast cell (toluidine blue) staining confirmed that administration of the highest dose enhanced mast cell infiltration in tissues of vital organs, while lower doses did not exhibit any of these alterations. Therefore, the results of the present study establish that the NPs disposal in-vivo culminates into alterations in organ structure and function consequences such that lower doses are quite biocompatible and do not demonstrate any structural or functional toxicity while some toxicological effects start appearing at the highest dose.
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Affiliation(s)
- Anas Ahmad
- Chemical Biology Unit, Institute of Nano Science and Technology (INST), Sector-81, Knowledge City, Sahibzada Ajit Singh Nagar, Punjab Pin 140306, India
| | - Md Meraj Ansari
- Chemical Biology Unit, Institute of Nano Science and Technology (INST), Sector-81, Knowledge City, Sahibzada Ajit Singh Nagar, Punjab Pin 140306, India
| | - Abdullah F AlAsmari
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, P. O. Box 55760, Riyadh 11451, Saudi Arabia
| | - Nemat Ali
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, P. O. Box 55760, Riyadh 11451, Saudi Arabia
| | - Mir Tahir Maqbool
- National Center for Natural Products Research, Research Institute of Pharmaceutical Sciences, School of Pharmacy, University of Mississippi, MS 38677, USA
| | - Syed Shadab Raza
- Laboratory for Stem Cell & Restorative Neurology, Department of Biotechnology, Era's Lucknow Medical College and Hospital, Sarfarazganj, Lucknow 226003, Uttar Pradesh, India
| | - Rehan Khan
- Chemical Biology Unit, Institute of Nano Science and Technology (INST), Sector-81, Knowledge City, Sahibzada Ajit Singh Nagar, Punjab Pin 140306, India.
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16
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Kalyane D, Kumar N, Anup N, Rajpoot K, Maheshwari R, Sengupta P, Kalia K, Tekade RK. Recent advancements and future submissions of silica core-shell nanoparticles. Int J Pharm 2021; 609:121173. [PMID: 34627997 DOI: 10.1016/j.ijpharm.2021.121173] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2021] [Revised: 09/22/2021] [Accepted: 10/04/2021] [Indexed: 12/18/2022]
Abstract
The core-shell silica-based nanoparticles (CSNPs) possess outstanding properties for developing next-generation therapeutics. CSNPs provide greater surface area owing to their mesoporous structure, which offers a high opportunity for surface modification. This review highlights the potential of core-shell silica-based nanoparticle (CSNP) based injectable nanotherapeutics (INT); its role in drug delivery, biomedical imaging, light-triggered phototherapy, Plasmonic enhancers, gene delivery, magnetic hyperthermia, immunotherapy, and potential as next-generation theragnostic. Specifically, the conceptual crosstalk on modern synthetic strategies, biodistribution profiles with a mechanistic view on the therapeutics loading and release modeling are dealt in detail. The manuscript also converses the challenges associated with CSNPs, regulatory hurdles, and their current market position.
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Dong J, Chen W, Qin D, Chen Y, Li J, Wang C, Yu Y, Feng J, Du X. Cyclodextrin polymer-valved MoS 2-embedded mesoporous silica nanopesticides toward hierarchical targets via multidimensional stimuli of biological and natural environments. J Hazard Mater 2021; 419:126404. [PMID: 34153613 DOI: 10.1016/j.jhazmat.2021.126404] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/21/2021] [Revised: 06/05/2021] [Accepted: 06/11/2021] [Indexed: 06/13/2023]
Abstract
Targeted delivery of pesticides towards pests and pathogens can significantly improve the bioavailability and efficacy of pesticides and minimize the impact on the environment. Cyclodextrin polymer (CDP)-valved, benzimidazole functionalized, MoS2-embedded mesoporous silica (MoS2@MSN@CDP) nanopesticides were constructed toward hierarchical biological targets of pests, pathogens, and foliage. The splash and bounce of the aqueous droplets containing MoS2@MSN@CDP nanoparticles in the presence of Aersosol OT on superhydrophobic surfaces were well inhibited available for excellent wetting to prevent pesticides from losing to the environment. The multivalent supramolecular nanovalves between CDP and the functionalized benzimidazole moieties could be activated for the controlled release of pesticides in the cases of low pH and α-amylase. It is the first time to report the foliage-triggered controlled release of pesticides, owing to the competitive binding of epicuticular wax components to CDP. Furthermore, thermogenic MoS2 cores triggered the controlled release of pesticides under irradiation of near infrared light. The fungicidal efficacies of the stimuli-responsive nanopesticides against pathogenic fungi Rhizoctonia solani and Fusarium graminearum were demonstrated. It is clear that the smart nanopesticides could realize the controlled release of pesticides toward hierarchical biological targets for enhanced pesticide bioavailability and efficacy via the multidimensional stimuli of pH, α-amylase, epicuticular waxes, and sunlight.
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Affiliation(s)
- Jiangtao Dong
- Key Laboratory of Mesoscopic Chemistry (Ministry of Education), State Key Laboratory of Coordination Chemistry, and School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, People's Republic of China
| | - Wang Chen
- School of Horticulture and Plant Protection, Yangzhou University, Yangzhou 225009, People's Republic of China
| | - Dunzhong Qin
- Jiangsu Sinvochem S&T Co., Ltd., Yangzhou 211400, People's Republic of China
| | - Yuxia Chen
- Key Laboratory of Mesoscopic Chemistry (Ministry of Education), State Key Laboratory of Coordination Chemistry, and School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, People's Republic of China
| | - Jun Li
- Food Processing Institute of Guizhou Academy of Agricultural Sciences, Guiyang 550006, People's Republic of China
| | - Chen Wang
- Key Laboratory of Mesoscopic Chemistry (Ministry of Education), State Key Laboratory of Coordination Chemistry, and School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, People's Republic of China
| | - Yeqing Yu
- Key Laboratory of Mesoscopic Chemistry (Ministry of Education), State Key Laboratory of Coordination Chemistry, and School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, People's Republic of China
| | - Jianguo Feng
- School of Horticulture and Plant Protection, Yangzhou University, Yangzhou 225009, People's Republic of China.
| | - Xuezhong Du
- Key Laboratory of Mesoscopic Chemistry (Ministry of Education), State Key Laboratory of Coordination Chemistry, and School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, People's Republic of China.
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Shao X, Song X, Liu X, Yan L, Liu L, Fan D, Wei Q, Ju H. A dual signal-amplified electrochemiluminescence immunosensor based on core-shell CeO 2-Au@Pt nanosphere for procalcitonin detection. Mikrochim Acta 2021; 188:344. [PMID: 34528141 DOI: 10.1007/s00604-021-04988-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2021] [Accepted: 08/14/2021] [Indexed: 11/25/2022]
Abstract
A dual signal-amplified sandwich electrochemiluminescence (ECL) immunosensor was fabricated for trace detection of procalcitonin (PCT). CeO2-Au@Pt composed of sea urchin-like Au@Pt nanoparticles coated on CeO2 hollow nanospheres was immobilized on electrode surface to electrochemically catalyze H2O2 to produce a large number of superoxide anion (O2•-). The immunosensor was prepared by linking the capture antibody on immobilized CeO2-Au@Pt with heptapeptide (HWRGWVC), which could maintain the activity of the antibody. The prepared Au star@BSA was used to bind abundant luminol for labeling the secondary antibody (Ab2). Upon the sandwich-typed immunoreactions, the O2•- could react with the introduced luminol on the immunosensor surface to produce strong ECL intensity. With an outstanding linear detection range and a low detection limit of 17 fg/mL, the ECL immunosensor permitted ultrasensitive detection of PCT at a low H2O2 concentration and demonstrated its high application potential in the clinical assay.
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Affiliation(s)
- Xinrong Shao
- Collaborative Innovation Center for Green Chemical Manufacturing and Accurate Detection, School of Chemistry and Chemical Engineering, University of Jinan, Jinan, 250022, People's Republic of China
- Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan, 250022, People's Republic of China
| | - Xianzhen Song
- Collaborative Innovation Center for Green Chemical Manufacturing and Accurate Detection, School of Chemistry and Chemical Engineering, University of Jinan, Jinan, 250022, People's Republic of China
- Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan, 250022, People's Republic of China
| | - Xin Liu
- Collaborative Innovation Center for Green Chemical Manufacturing and Accurate Detection, School of Chemistry and Chemical Engineering, University of Jinan, Jinan, 250022, People's Republic of China
- Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan, 250022, People's Republic of China
| | - Liangguo Yan
- School of Water Conservancy and Environment, University of Jinan, Jinan, 250022, People's Republic of China
| | - Lei Liu
- Collaborative Innovation Center for Green Chemical Manufacturing and Accurate Detection, School of Chemistry and Chemical Engineering, University of Jinan, Jinan, 250022, People's Republic of China
- Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan, 250022, People's Republic of China
| | - Dawei Fan
- Collaborative Innovation Center for Green Chemical Manufacturing and Accurate Detection, School of Chemistry and Chemical Engineering, University of Jinan, Jinan, 250022, People's Republic of China.
- Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan, 250022, People's Republic of China.
| | - Qin Wei
- Collaborative Innovation Center for Green Chemical Manufacturing and Accurate Detection, School of Chemistry and Chemical Engineering, University of Jinan, Jinan, 250022, People's Republic of China
- Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan, 250022, People's Republic of China
| | - Huangxian Ju
- Collaborative Innovation Center for Green Chemical Manufacturing and Accurate Detection, School of Chemistry and Chemical Engineering, University of Jinan, Jinan, 250022, People's Republic of China
- Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan, 250022, People's Republic of China
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, People's Republic of China
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Rocha ACDS, Pinheiro MVDS, Menezes LRD, Silva EOD. Core-shell nanoparticles based on zirconia covered with silver as an advantageous perspective for obtaining antimicrobial nanocomposites with good mechanical properties and less cytotoxicity. J Mech Behav Biomed Mater 2021; 123:104726. [PMID: 34454208 DOI: 10.1016/j.jmbbm.2021.104726] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2021] [Revised: 07/16/2021] [Accepted: 07/19/2021] [Indexed: 11/17/2022]
Abstract
Antimicrobial nanoparticles perform a vast and promising strand of applications, among which, the silver ones stand out due to their broad antimicrobial spectrum. However, their toxicological potential in addition with their not always satisfying mechanical properties limit their wider application. In this sense, the use of core-shell systems can generate materials with improved properties. Thus, the goal of the present work was to obtain zirconia-silver core-shell nanoparticles and, after that, evaluate their properties in systems based on poly(lactide) PLA. Systems containing silver nanoparticles (AgNP), zirconium oxide (ZrNP), a physical mixture of both particles and core-shell nanoparticles (Core-shell NP) were evaluated. The Core-shell NP were characterized by dynamic light scattering (DLS), Energy Dispersive X-Ray (EDX), transmission electronic microscopy (TEM), and antimicrobial activity. The nanocomposite films were evaluated by Fourier transform infrared analysis (FTIR), thermogravimetric analysis (TGA), nano-hardness, tensile strength test, cytotoxicity, and antimicrobial activity. The results obtained from the DLS and EDX analyses confirmed the obtaining of systems covered with silver. Through the TEM analysis, the formation of the core-shell structure with a diameter of about 100 nm was observed. The films containing core-shell NP presented antimicrobial activity with a profile correspondent to the one observed for AgNP. As for cytotoxicity, these particles proved to be less cytotoxic and achieved higher values of hardness (10%), modulus (40%), and toughness (28%) than those observed for AgNP, and these properties were lower than those observed for ZrNP. The core-shell NP also exhibited even greater antimicrobial activities, less cytotoxicity, and largest elastic modulus (17%) than the physical mixture of the particles.
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Affiliation(s)
- Anne Caroline da Silva Rocha
- Instituto de Macromoléculas Professora Eloisa Mano, Universidade Federal do Rio de Janeiro, Av. Horácio Macedo 2030, bloco J, Centro de Tecnologia, CEP 21941-598, Rio de Janeiro, RJ, Brazil.
| | - Marcelo Vítor Dos Santos Pinheiro
- Instituto de Macromoléculas Professora Eloisa Mano, Universidade Federal do Rio de Janeiro, Av. Horácio Macedo 2030, bloco J, Centro de Tecnologia, CEP 21941-598, Rio de Janeiro, RJ, Brazil
| | - Lívia Rodrigues de Menezes
- Instituto de Macromoléculas Professora Eloisa Mano, Universidade Federal do Rio de Janeiro, Av. Horácio Macedo 2030, bloco J, Centro de Tecnologia, CEP 21941-598, Rio de Janeiro, RJ, Brazil
| | - Emerson Oliveira da Silva
- Instituto de Macromoléculas Professora Eloisa Mano, Universidade Federal do Rio de Janeiro, Av. Horácio Macedo 2030, bloco J, Centro de Tecnologia, CEP 21941-598, Rio de Janeiro, RJ, Brazil
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20
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Navakoteswara Rao V, Preethi V, Bhargav U, Ravi P, Kumar A, Sathish M, Krishnan V, Venkatramu V, Mamatha Kumari M, Reddy KR, Shetti NP, Aminabhavi TM, Shankar MV. Gram-scale synthesis of ZnS/NiO core-shell hierarchical nanostructures and their enhanced H 2 production in crude glycerol and sulphide wastewater. Environ Res 2021; 199:111323. [PMID: 33989620 DOI: 10.1016/j.envres.2021.111323] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/07/2021] [Revised: 05/01/2021] [Accepted: 05/07/2021] [Indexed: 06/12/2023]
Abstract
Design and development of the efficient and durable photocatalyst that generates H2 fuel utilizing industrial wastewater under solar light irradiation is a sustainable process. Innumerable photocatalysts have been reported for efficient H2 production, but their large-scale production with the same efficiency of H2 production is a challenging task. In this study, a few gram-scale syntheses of ZnS wrapped with NiO hierarchical core-shell nanostructure via the surfactant-mediated process has been reported. Morphology and crystal structure analysis of ZnS/NiO showed spherical shaped hierarchical core-shell with cubic and face-centered cubic crystal structures. The surface examination confirmed the presence of Zn2+, S2-, Ni2+ and O2- ions in the nanocomposite. The photocurrent and photoluminescence studies of pristine and nanocomposites revealed that core-shell material is non-corrosive with a prolonged life-time of photo-excitons. Parametric studies on photocatalytic H2 generation in lab-scale photoreactor using crude glycerol in water recorded a high rate of H2 generation of 9.3 mmol h-1.g-1 of catalyst under the simulated solar light irradiation. Optimized reaction parameters are extended to a demonstrative photoreactor containing aqueous crude glycerol produced 18.5 mmol h-1 of H2 generation under the natural solar light irradiation. The same nanostructures were further tested with the simulated sulfide wastewater and the optimized catalyst showed H2 production of 350 mL h-1. The experimental results of time-on stream and catalytic stability demonstrated that ZnS/NiO hierarchical core-shell nanostructures can be recyclable and reusable for the continuous photocatalytic H2 generation.
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Affiliation(s)
- Vempuluru Navakoteswara Rao
- Nanocatalysis and Solar Fuels Research Laboratory, Department of Materials Science & Nanotechnology, Yogi Vemana University, Kadapa, 516005, Andhra Pradesh, India
| | - Vijayarengan Preethi
- Department of Civil Engineering, Hindustan Institute of Technology and Science, Padur, Chennai, 603103, Tamil Nadu, India.
| | - Urupalli Bhargav
- Nanocatalysis and Solar Fuels Research Laboratory, Department of Materials Science & Nanotechnology, Yogi Vemana University, Kadapa, 516005, Andhra Pradesh, India
| | - Parnapalle Ravi
- Electrochemical Power Sources Division, Central Electrochemical Research Institute (CSIR-CECRI), Karaikudi, 630003, Tamil Nadu, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Ashish Kumar
- School of Basic Sciences and Advanced Materials Research Center, Indian Institute of Technology Mandi, Mandi, 175075, Himachal Pradesh, India
| | - Marappan Sathish
- Electrochemical Power Sources Division, Central Electrochemical Research Institute (CSIR-CECRI), Karaikudi, 630003, Tamil Nadu, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Venkata Krishnan
- School of Basic Sciences and Advanced Materials Research Center, Indian Institute of Technology Mandi, Mandi, 175075, Himachal Pradesh, India
| | - Vemula Venkatramu
- Department of Physics, Yogi Vemana University, Kadapa, 516 005, Andhra Pradesh, India; Department of Physics, Krishna University Dr. MRAR PG Centre, Nuzvid, 521 201, Andhra Pradesh, India
| | - Murikinati Mamatha Kumari
- Nanocatalysis and Solar Fuels Research Laboratory, Department of Materials Science & Nanotechnology, Yogi Vemana University, Kadapa, 516005, Andhra Pradesh, India
| | - Kakarla Raghava Reddy
- School of Chemical and Biomolecular Engineering, The University of Sydney, Sydney, NSW, 2006, Australia
| | - Nagaraj P Shetti
- School of Advanced Sciences, KLE Technological University, Vidyanagar, Hubballi, 580031, Karnataka, India
| | | | - Muthukonda Venkatakrishnan Shankar
- Nanocatalysis and Solar Fuels Research Laboratory, Department of Materials Science & Nanotechnology, Yogi Vemana University, Kadapa, 516005, Andhra Pradesh, India.
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21
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Rex R, Siddhanta S, Barman I. Role of Aqueous-Phase Calcination in Synthesis of Ultra-Stable Dye-Embedded Fluorescent Nanoparticles for Cellular Probing. Appl Spectrosc 2021; 75:1012-1021. [PMID: 34251874 DOI: 10.1177/00037028211027597] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Fluorescence imaging is a major driver of discovery in biology, and an invaluable asset in clinical diagnostics. To overcome quenching limitations of conventional fluorescent dyes and further improve intensity, nanoparticle-based constructs have been the subject of intense investigation, and within this realm, dye-doped silica-coated nanoparticles have garnered significant attention. Despite their growing popularity in research, fluorescent silica nanoparticles suffer from a significant flaw. The degradation of these nanoparticles in biological media by hydrolytic dissolution is underreported, leading to serious misinterpretations, and limiting their applicability for live cell and in vivo imaging. Here, the development of an ultra-stable, dye-embedded, silica-coated metal nanoparticle is reported, and its superior performance in long-term live cell imaging is demonstrated. While conventional dye-doped silica nanoparticles begin to degrade within an hour in aqueous media, by leveraging a modified liquid calcination process, this new construct is shown to be stable for at least 24 h. The stability of this metal-enhanced fluorescent probe in biologically relevant temperatures and media, and its demonstrated utility for cell imaging, paves the way for its future adoption in biomedical research.
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Affiliation(s)
- Rachel Rex
- Department of Mechanical Engineering, Johns Hopkins University, Baltimore, MD, USA
- Department of Mechanical Engineering, University of California, Berkeley, CA, USA
| | - Soumik Siddhanta
- Department of Mechanical Engineering, Johns Hopkins University, Baltimore, MD, USA
- Department of Oncology, Radiology and Radiological Science, Johns Hopkins University, Baltimore, MD, USA
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, India
| | - Ishan Barman
- Department of Mechanical Engineering, Johns Hopkins University, Baltimore, MD, USA
- Department of Oncology, Radiology and Radiological Science, Johns Hopkins University, Baltimore, MD, USA
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22
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Chen R, Li S, Sun Y, Huo B, Xia Y, Qin Y, Li S, Shi B, He D, Liang J, Gao Z. Surface-enhanced Raman spectroscopy aptasensor for simultaneous determination of ochratoxin A and zearalenone using Au@Ag core-shell nanoparticles and gold nanorods. Mikrochim Acta 2021; 188:281. [PMID: 34331147 DOI: 10.1007/s00604-021-04919-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2021] [Accepted: 06/27/2021] [Indexed: 01/03/2023]
Abstract
The design and fabrication of a surface-enhanced Raman scattering (SERS) aptasensor for simultaneous detection of zearalenone (ZEN) and ochratoxin A (OTA) in wheat and corn samples is described. The capture and reporter probes were SH-cDNA-modified gold nanorods and SH-Apt-modified Au@Ag core-shell nanoparticles, respectively. After recognizing OTA and ZEN aptamers and complementary strands (SH-cDNA), the reporter probe generated a strong SERS signal. The preferred binding of OTA and ZEN aptamers to OTA and ZEN, respectively, caused reporter probes to release the capture probes, resulting in a linear decrease in SERS intensity. The detection of OTA showed good linearity with an R2 value of 0.986, which could be maintained across a wide concentration range (0.01 to 100 ng/mL), with the limit of detection of 0.018 ng/mL. For detection of ZEN, good linearity with an R2 value of 0.987 could be maintained across a wide concentration range (0.05 to 500 ng/mL), with 0.054 ng/mL as the limit of detection. Good accuracy (relative standard deviation < 4.2%) during mycotoxin determination as well as excellent quantitative recoveries (96.0-110.7%) during the analysis of spiked real samples was achieved. The proposed SERS aptasensor exhibited excellent performance in the detection of OTA and ZEN in real food samples. Hence, by simply changing the aptamer, this new model can be applied to the detection of multiple mycotoxins in the food industry.
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23
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Kumar D, Kumar S, Kumar S, Rohatgi S, Kundu PP. Synthesis of rifaximin loaded chitosan-alginate core-shell nanoparticles (Rif@CS/Alg-NPs) for antibacterial applications. Int J Biol Macromol 2021; 183:962-971. [PMID: 33965483 DOI: 10.1016/j.ijbiomac.2021.05.022] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Revised: 05/01/2021] [Accepted: 05/04/2021] [Indexed: 12/11/2022]
Abstract
The present work aims to synthesize the rifaximin loaded chitosan-alginate core-shell nanoparticles (Rif@CS/Alg-NPs) for antibacterial applications. The core-shell nanoparticles (Rif@CS/Alg-NPs) were characterized by Fourier Transform Infrared (FT-IR) spectroscopy, Scanning Electron Microscopy (SEM), Transmission Electron Microscopy (TEM), X-rays diffraction (XRD) and zeta analyzer. The antibacterial activities of Rif@CS/Alg-NPs were investigated against three species of bacteria namely Escherichia coli (E. coli), Pseudomonas aeruginosa (PA) and Bacillus haynesii (BH). Rif@CS/Alg-NPs exhibited outstanding antibacterial activities against E. coli, P. aeroginosa and Bacillus haynesii (BH) with 24 mm, 30 mm and 34 mm zone of inhibitions, respectively. Cytotoxicity of Rif@CS/Alg-NPs was also evaluated against human lung adenocarcinoma cell line A549 and found to be nontoxic. The drug release behavior of Rif@CS/Alg-NPs was investigated at different pH levels and maximum drug release (80%) was achieved at pH (7.2). The drug release kinetic data followed the Higuchi (R2 = 0.9963) kinetic model, indicating the drug release from Rif@CS/Alg-NPs as a square root of time-dependent process and diffusion controlled. Current research provides a cost-effective and green approach toward the synthesis of Rif@CS/Alg-NPs for its antibacterial applications.
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Affiliation(s)
- Deepak Kumar
- Department of Chemical Engineering, Indian Institute of Technology Roorkee, India
| | - Sumit Kumar
- Department of Chemistry, Babasaheb Bhimrao Ambedkar University (A Central University), Lucknow, U.P., India
| | - Shailesh Kumar
- Department of Chemistry, Babasaheb Bhimrao Ambedkar University (A Central University), Lucknow, U.P., India
| | - Soma Rohatgi
- Department of Biotechnology, Indian Institute of Technology Roorkee, India
| | - Patit P Kundu
- Department of Chemical Engineering, Indian Institute of Technology Roorkee, India.
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24
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Siavashy S, Soltani M, Ghorbani-Bidkorbeh F, Fallah N, Farnam G, Mortazavi SA, Shirazi FH, Tehrani MHH, Hamedi MH. Microfluidic platform for synthesis and optimization of chitosan-coated magnetic nanoparticles in cisplatin delivery. Carbohydr Polym 2021; 265:118027. [PMID: 33966822 DOI: 10.1016/j.carbpol.2021.118027] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2020] [Revised: 03/02/2021] [Accepted: 03/29/2021] [Indexed: 01/03/2023]
Abstract
In this study, magnetic core/chitosan shell Nanoparticles (NPs) containing cisplatin were synthesized via cisplatin complexation with tripolyphosphate as the chitosan crosslinker using two different procedures: a conventional batch flow method and a microfluidic approach. An integrated microfluidic device composed of three stages was developed to provide precise and highly controllable mixing. The comparison of the results revealed that NPs synthesized in microchannels were monodisperse 104 ± 14.59 nm (n = 3) in size with optimal morphological characteristics, whereas polydisperse 423 ± 53.33 nm (n = 3) nanoparticles were obtained by the conventional method. Furthermore, cisplatin was loaded in NPs without becoming inactivated, and the microfluidic technique demonstrated higher encapsulation efficiency, controlled release, and consequently lower IC50 values during exposure to the A2780 cell line proving that microfluidic synthesized NPs were able to enter the cells and release the drug more efficiently. The developed microfluidic platform presents valuable features that could potentially provide the clinical translation of NPs in drug delivery.
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Affiliation(s)
- Saeed Siavashy
- Department of Mechanical Engineering, K. N. Toosi University of Technology, Tehran, Iran
| | - M Soltani
- Department of Mechanical Engineering, K. N. Toosi University of Technology, Tehran, Iran; Advanced Bioengineering Initiative Center, Computational Medicine Center, K. N. Toosi University of Technology, Tehran, Iran; Department of Electrical and Computer Engineering, University of Waterloo, Waterloo, ON, Canada; Centre for Biotechnology and Bioengineering (CBB), University of Waterloo, Waterloo, ON, Canada.
| | - Fatemeh Ghorbani-Bidkorbeh
- Department of Pharmaceutics, School of Pharmacy, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| | - Newsha Fallah
- Department of Pharmaceutics, School of Pharmacy, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Golrokh Farnam
- Department of Toxicology and Pharmacology, School of Pharmacy, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Seyed Alireza Mortazavi
- Department of Pharmaceutics, School of Pharmacy, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Farshad H Shirazi
- Department of Toxicology and Pharmacology, School of Pharmacy, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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25
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Liu H, Liu B, Huang P, Wu Y, Wu FY, Ma L. Colorimetric determination of tyrosinase based on in situ silver metallization catalyzed by gold nanoparticles. Mikrochim Acta 2020; 187:551. [PMID: 32894361 DOI: 10.1007/s00604-020-04463-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2020] [Accepted: 07/24/2020] [Indexed: 12/18/2022]
Abstract
Gold nanoparticles (AuNPs) catalyze the mild reaction between the weak reducing agent kojic acid (KA) and silver ions (Ag+) to form Au@Ag bimetallic NPs by the combination of the intrinsic catalysis with plasmonic properties This is proposed as a novel optical assay to determine the tyrosinase (TYRase) concentration. The nanoparticles have been characterized by UV-vis spectroscopy, transmission electron microscope (TEM) images, and X-ray photoelectron spectroscopy (XPS). The sensing mechanism is based on the fact that KA binds to TYRase by chelating with dicopper active site of TYRase and the introduction of TYRase restrains the Au@Ag bimetallic NP formation by the precedent binding with KA. A clear color variation from yellow to pink and UV-vis spectral changes are observed at the optimal wavelength of 410 nm. The assay works in the range 0.13~0.73 U mL-1 with a detection limit (LOD) of 0.019 U mL-1. The impact from matrix interfering substances including glucose, uric acid, common oxidases, and amino acids is negligible. The applicability is demonstrated by quantitative determination of TYRase in human serum samples with 74 to 89% recovery and RSD less than 4.0%, which accords with the level for bio-sample analysis. Graphical abstract Schematic presentation of colorimetric assay for tyrosinase (TYRase) based on the inhibition effect on silver deposition onto catalytically active gold nanoparticles (AuNPs) and its application with a smartphone. Tyrosinase (TYRase); silver ions (Ag+); kojic acid (KA); gold nanoparticles (AuNPs); gold-silver core-shell nanoparticles (Au@Ag NPs).
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Affiliation(s)
- Hui Liu
- College of Chemistry, Nanchang University, Nanchang, 330031, China
| | - Bowen Liu
- College of Chemistry, Nanchang University, Nanchang, 330031, China
| | - Pengcheng Huang
- College of Chemistry, Nanchang University, Nanchang, 330031, China. .,Jiangxi Province Key Laboratory of Modern Analytical Science, Nanchang University, Nanchang, 330031, China.
| | - Yangyang Wu
- College of Chemistry, Nanchang University, Nanchang, 330031, China
| | - Fang-Ying Wu
- College of Chemistry, Nanchang University, Nanchang, 330031, China. .,Jiangxi Province Key Laboratory of Modern Analytical Science, Nanchang University, Nanchang, 330031, China.
| | - Lihua Ma
- College of Science and Engineering, University of Houston at Clear Lake, 2700 Bay Area Blvd, Houston, TX, 77058, USA
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Tavares GD, Gonçalves JE, Monteiro LM, Löbenberg R, Storpirtis S, Bou-Chacra NA, Consiglieri VO. N,N,N-trimethylchitosan-poly (n-butylcyanoacrylate) core-shell nanoparticles as a potential oral delivery system for acyclovir. Colloids Surf B Biointerfaces 2020; 196:111336. [PMID: 32877830 DOI: 10.1016/j.colsurfb.2020.111336] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2020] [Revised: 08/11/2020] [Accepted: 08/16/2020] [Indexed: 10/23/2022]
Abstract
This study investigated the feasibility of polysaccharide-coated poly(n-butyl cyanoacrylate) (PBCA) nanoparticles for oral delivery of acyclovir (ACV). PBCA nanoparticles were obtained by the emulsion polymerization method. Chitosan was chemically modified to obtain N,N,N-trimethylchitosan (TMC), which was used to coat the nanoparticles (PBCA-TMC). Nanoparticles were characterized by dynamic light scattering, zeta potential, differential scanning calorimetry (DSC), atomic force microscopy (AFM), cytotoxicity, and the effect on the transepithelial electrical resistance (TEER) of the Caco-2 cells. The size of the coated nanoparticles (296.2 nm) was significantly larger than uncoated (175.0 nm). Furthermore, PBCA nanoparticles had a negative charge (-11.7 mV), which was inverted to highly positive values (+36.5 mV) after coating. DSC analysis suggested the occurrence of the coating, which was confirmed by AFM images. The MTT assay revealed concentration-dependent cytotoxicity for the core-shell nanoparticles. Additionally, PBCA-TMC caused a significant but reversible decrease in the Caco-2 cell monolayer TEER. Entrapped ACV (PBCA-ACV-TMC), a Biopharmaceutical Classification System class III drug substance, increased approximately 3.25 times the Papp of ACV in the Caco-2 permeability assay. The nanoparticles were also able to provide in vitro ACV controlled release using media with different pH values (1.2; 6.8; 7.4). Accordingly, this new core-shell nanoparticle showed the potential to improve the oral delivery of ACV.
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Affiliation(s)
- Guilherme Diniz Tavares
- Department of Pharmaceutical Science, Faculty of Pharmacy, Federal University of Juiz de Fora, Juiz de Fora, Minas Gerais, Brazil
| | - José Eduardo Gonçalves
- Department of Pharmaceutical Products, Faculty of Pharmacy, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Lis Marie Monteiro
- Department of Pharmacy, Faculty of Pharmaceutical Sciences, University of São Paulo, São Paulo, SP, Brazil
| | - Raimar Löbenberg
- Faculty of Pharmacy, University of Alberta, Edmonton, Alberta, Canada
| | - Silvia Storpirtis
- Department of Pharmacy, Faculty of Pharmaceutical Sciences, University of São Paulo, São Paulo, SP, Brazil
| | - Nádia Araci Bou-Chacra
- Department of Pharmacy, Faculty of Pharmaceutical Sciences, University of São Paulo, São Paulo, SP, Brazil.
| | - Vladi Olga Consiglieri
- Department of Pharmacy, Faculty of Pharmaceutical Sciences, University of São Paulo, São Paulo, SP, Brazil
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Elistratova J, Faizullin B, Strelnik I, Gerasimova T, Khairullin R, Sapunova A, Voloshina A, Mukhametzyanov T, Musina E, Karasik A, Mustafina A. Impact of oppositely charged shell and cores on interaction of core-shell colloids with differently charged proteins as a route for tuning of the colloids cytotoxicity. Colloids Surf B Biointerfaces 2020; 196:111306. [PMID: 32810768 DOI: 10.1016/j.colsurfb.2020.111306] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2020] [Revised: 07/16/2020] [Accepted: 08/02/2020] [Indexed: 10/23/2022]
Abstract
The present work represents interactions between the core-shell nanoparticles and different proteins, exemplified by lysozyme (LSZ), pepsin, bovine serum albumin (BSA), thioredoxin (TRX) and yellow fluorescent protein (YFP). The core-shell morphology derives from the non-covalent deposition of polyethyleneimine (PEI) onto nanoprecipitated luminescent complex (AuCl)2L (L is cyclic PNNP ligand). Analysis of the data obtained by DLS, CD spectroscopy, luminescence derived from both (AuCl)2L and YFP reveal the electrostatically driven interaction of negatively charged proteins with the shell of PEI-(AuCl)2L. The fluorescence of YFP enables to reveal the inclusion of the protein molecules into the shell. The lack of any luminescent response of PEI-(AuCl)2L on TRX conforms its electrostatically driven interactions with the shell which, in turn, excludes a binding of the exposed thiol moieties with (AuCl)2L. The negatively charged surface of pepsin provides the greatest recharging of the PEI-based shell versus the other proteins, which is followed by the enhanced luminescence of (AuCl)2L. The significant effect of PEI-(AuCl)2L on the CD spectra of LSZ followed by the decreased intensity of (AuCl)2L-based luminescence points to specific interaction mode of PEI-(AuCl)2L with LSZ. The flow cytometry and fluorescent microscopy measurements revealed efficient internalization of PEI-(AuCl)2L into the Wi-38 cell samples resulting in the efficient staining of all cell organelles. The concentration dependent cytotoxicity of PEI-(AuCl)2L is detectably enhanced by LSZ, which is correlated with its interaction mode with the nanoparticles.
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Affiliation(s)
- Julia Elistratova
- Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center, Russian Academy of Sciences, Arbuzov str., 8, 420088, Kazan, Russia.
| | - Bulat Faizullin
- Kazan (Volga Region) Federal University, Kremlyovskaya str., 18, 420008, Kazan, Russia
| | - Igor Strelnik
- Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center, Russian Academy of Sciences, Arbuzov str., 8, 420088, Kazan, Russia
| | - Tatiana Gerasimova
- Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center, Russian Academy of Sciences, Arbuzov str., 8, 420088, Kazan, Russia
| | - Rafil Khairullin
- Kazan (Volga Region) Federal University, Kremlyovskaya str., 18, 420008, Kazan, Russia
| | - Anastasiia Sapunova
- Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center, Russian Academy of Sciences, Arbuzov str., 8, 420088, Kazan, Russia
| | - Alexandra Voloshina
- Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center, Russian Academy of Sciences, Arbuzov str., 8, 420088, Kazan, Russia
| | - Timur Mukhametzyanov
- Kazan (Volga Region) Federal University, Kremlyovskaya str., 18, 420008, Kazan, Russia
| | - Elvira Musina
- Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center, Russian Academy of Sciences, Arbuzov str., 8, 420088, Kazan, Russia
| | - Andrey Karasik
- Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center, Russian Academy of Sciences, Arbuzov str., 8, 420088, Kazan, Russia
| | - Asiya Mustafina
- Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center, Russian Academy of Sciences, Arbuzov str., 8, 420088, Kazan, Russia
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28
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Borri C, Albino M, Innocenti C, Pineider F, Cavigli L, Centi S, Sangregorio C, Ratto F, Pini R. A bionic shuttle carrying multi-modular particles and holding tumor-tropic features. Mater Sci Eng C Mater Biol Appl 2020; 117:111338. [PMID: 32919687 DOI: 10.1016/j.msec.2020.111338] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/05/2020] [Revised: 07/10/2020] [Accepted: 08/01/2020] [Indexed: 01/08/2023]
Abstract
The systemic delivery of composite nanoparticles remains an outstanding challenge in cancer nanomedicine, and the principal reason is a complex interplay of biological barriers. In this regard, adaptive cell transfer may represent an alternative solution to circumvent these barriers down to the tumor microenvironment. Here, tumor-tropic macrophages are proposed as a tool to draw and vehiculate modular nanoparticles integrating magnetic and plasmonic components. The end result is a bionic shuttle that exhibits a plasmonic band within the so-called therapeutic window arising from as much as 40 pg Au per cell, magnetization in the order of 150 pemu per cell, and more than 90% of the pristine viability and chemotactic activity of its biological component, until at least two days of preparation. Its synergistic combination of plasmonic, magnetic and tumor-tropic functions is assessed in vitro for applications as magnetic guidance or sorting, with a propulsion around 4 μm s-1 for a magnetic gradient of 0.8 T m-1, the optical hyperthermia of cancer, with stability of photothermal conversion to temperatures exceeding 50∘C, and the photoacoustic imaging of cancer under realistic conditions. These results collectively suggest that a bionic design may be a promising roadmap to reconcile the efforts for multifunctionality and targeted delivery, which are both key goals in nanomedicine.
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Affiliation(s)
- Claudia Borri
- Istituto di Fisica Applicata "Nello Carrara", Consiglio Nazionale delle Ricerche, Via Madonna del Piano 10, 50019 Sesto Fiorentino, FI, Italy
| | - Martin Albino
- Dipartimento di Chimica "Ugo Schiff", Università degli Studi di Firenze, Via della Lastruccia 3-13, 50019 Sesto Fiorentino, FI, Italy
| | - Claudia Innocenti
- Istituto di Chimica dei Composti OrganoMetallici, Consiglio Nazionale delle Ricerche, Via Madonna del Piano 10, 50019 Sesto Fiorentino, (FI), Italy
| | - Francesco Pineider
- Dipartimento di Chimica e Chimica Industriale, Università di Pisa, Via Giuseppe Moruzzi 13, 56124 Pisa, Italy
| | - Lucia Cavigli
- Istituto di Fisica Applicata "Nello Carrara", Consiglio Nazionale delle Ricerche, Via Madonna del Piano 10, 50019 Sesto Fiorentino, FI, Italy
| | - Sonia Centi
- Istituto di Fisica Applicata "Nello Carrara", Consiglio Nazionale delle Ricerche, Via Madonna del Piano 10, 50019 Sesto Fiorentino, FI, Italy
| | - Claudio Sangregorio
- Dipartimento di Chimica "Ugo Schiff", Università degli Studi di Firenze, Via della Lastruccia 3-13, 50019 Sesto Fiorentino, FI, Italy; Istituto di Chimica dei Composti OrganoMetallici, Consiglio Nazionale delle Ricerche, Via Madonna del Piano 10, 50019 Sesto Fiorentino, (FI), Italy.
| | - Fulvio Ratto
- Istituto di Fisica Applicata "Nello Carrara", Consiglio Nazionale delle Ricerche, Via Madonna del Piano 10, 50019 Sesto Fiorentino, FI, Italy.
| | - Roberto Pini
- Istituto di Fisica Applicata "Nello Carrara", Consiglio Nazionale delle Ricerche, Via Madonna del Piano 10, 50019 Sesto Fiorentino, FI, Italy
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Wang F, Ding X, Niu X, Liu X, Wang W, Zhang J. Green preparation of core-shell Cu@Pd nanoparticles with chitosan for glucose detection. Carbohydr Polym 2020; 247:116647. [PMID: 32829791 DOI: 10.1016/j.carbpol.2020.116647] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2020] [Revised: 06/11/2020] [Accepted: 06/12/2020] [Indexed: 12/13/2022]
Abstract
Although core-shell structure is favored by many applications, preparing it with green way is rarely been reported. Herein, a core-shell structured Cu@Pd-CS nanocomposite is greenly fabricated utilizing a natural chitosan and applied to glucose detection. As-obtained Cu@Pd-CS nanoparticles were characterized by transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS), and powder X-ray diffraction (XRD). When applied to glucose detection, the Cu@Pd-CS exhibits good stability, sensitivity and anti-interference. Moreover, it has a good linear relationship in glucose concentrations range of 0.1-1 mM with the sensitivity of 1.53 μA mM-1 cm-2 and 1-10 mM with the sensitivity of 23.00 μA mM-1 cm-2. This work proves the practicability of building metal-based core-shell structure nanoparticles with green resources and glucose detection application.
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Affiliation(s)
- Fengxia Wang
- College of Life Science, Northwest Normal University, Lanzhou 730070, China; Bioactive Products Engineering Research Center for Gansu Distinctive Plants, Lanzhou 730070, China.
| | - Xu Ding
- College of Life Science, Northwest Normal University, Lanzhou 730070, China; Bioactive Products Engineering Research Center for Gansu Distinctive Plants, Lanzhou 730070, China
| | - Xiaobo Niu
- College of Life Science, Northwest Normal University, Lanzhou 730070, China
| | - Xianyi Liu
- School of Chemical and Biological Engineering, Lanzhou Jiaotong University, Lanzhou 730070, China
| | - Wei Wang
- School of Chemical and Biological Engineering, Lanzhou Jiaotong University, Lanzhou 730070, China
| | - Ji Zhang
- College of Life Science, Northwest Normal University, Lanzhou 730070, China; Bioactive Products Engineering Research Center for Gansu Distinctive Plants, Lanzhou 730070, China.
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Dhanalekshmi KI, Magesan P, Sangeetha K, Zhang X, Jayamoorthy K, Srinivasan N. Preparation and characterization of core-shell type Ag@SiO 2 nanoparticles for photodynamic cancer therapy. Photodiagnosis Photodyn Ther 2019; 28:324-329. [PMID: 31600577 DOI: 10.1016/j.pdpdt.2019.10.006] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2019] [Revised: 09/16/2019] [Accepted: 10/04/2019] [Indexed: 01/10/2023]
Abstract
With recent scientific developments, Photodynamic therapy (PDT) offers the promisie to become incorporated into the mainstream of cancer therapy. Noble metal based nano-PDT is increasing due to its advantages in the field of biomedicine. In this study, noble metal based Ag@SiO2 core-shell nanoparticles were synthesized and to confirm the core-shell structure they were characterized by UV-vis, XRD, FTIR, TEM, and EDX. Our data confirm that core-shell type Ag@SiO2 nanoparticles maintain its ability to kill cancer cells upon light irradiation. This shows that SiO2 shell may not only prevent aggregation but it also may enhance the photodynamic activity of Ag nanoparticles.
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Affiliation(s)
- K I Dhanalekshmi
- School of Mechanical Engineering, Beijing Institute of Technology, Beijing, 100081, China.
| | - P Magesan
- Dept. of Chemistry, Bharath Institute of Higher Education & Research, Bharath University, Chennai, 600 073, Tamil Nadu, India
| | - K Sangeetha
- Dept. of IBT, Bharath Institute of Higher Education & Research, Bharath University, Chennai, 600 073, Tamil Nadu, India
| | - Xiang Zhang
- School of Mechanical Engineering, Beijing Institute of Technology, Beijing, 100081, China
| | - K Jayamoorthy
- Dept. of Chemistry, St. Joseph's College of Engineering, Chennai, Tamil Nadu, India
| | - N Srinivasan
- Dept. of Chemistry, Pachiyappa's College for Men, Kanchipuram, 631501, Tamil Nadu, India
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Liu Z, Ren F, Zhang H, Yuan Q, Jiang Z, Liu H, Sun Q, Li Z. Boosting often overlooked long wavelength emissions of rare-earth nanoparticles for NIR-II fluorescence imaging of orthotopic glioblastoma. Biomaterials 2019; 219:119364. [PMID: 31352311 DOI: 10.1016/j.biomaterials.2019.119364] [Citation(s) in RCA: 62] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2019] [Revised: 07/13/2019] [Accepted: 07/14/2019] [Indexed: 01/06/2023]
Abstract
Rare-earth nanoparticles (RE NPs) with narrow long wavelength emissions have been recently investigated for their potential application for fluorescence imaging in the second near-infrared window (NIR-II). Previously these RE NPs have a very limited application in the diagnosis and treatment of deep-seated tumors such as brain tumors, due to their weak fluorescence in the range of 1300-1700 nm. Herein, we report a significant enhancement of more than 10 times regular emission of NaNdF4 nanoparticles at 1340 nm wavelength by coating them with an inert layer of NaLuF4, followed by sensitizing with a near-infrared dye (IR-808). We deliver these highly bright nanoparticles into the brain by using focused ultrasound to temporarily open the blood-brain barrier (BBB), and then detect the orthotopic glioblastoma by fluorescence imaging at 1340 nm. The images obtained from long wavelength fluorescence (i.e. 1340 nm) exhibited better resolution and contrast compared to the short wavelength fluorescence (i.e. 1060 nm). Our study not only provides insights for enhancing often overlooked emissions of rare-earth nanoparticles for NIR-II fluorescence imaging of deep-seated tumors, but also demonstrates great potential of focused ultrasound based technology in delivering nanotheranostic agents.
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Affiliation(s)
- Zheng Liu
- Center for Molecular Imaging and Nuclear Medicine, State Key Laboratory of Radiation Medicine and Protection, School for Radiological and Interdisciplinary Sciences (RAD-X), Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Suzhou, 215123, PR China
| | - Feng Ren
- Center for Molecular Imaging and Nuclear Medicine, State Key Laboratory of Radiation Medicine and Protection, School for Radiological and Interdisciplinary Sciences (RAD-X), Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Suzhou, 215123, PR China
| | - Hao Zhang
- Center for Molecular Imaging and Nuclear Medicine, State Key Laboratory of Radiation Medicine and Protection, School for Radiological and Interdisciplinary Sciences (RAD-X), Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Suzhou, 215123, PR China
| | - Qiang Yuan
- The Second Affiliated Hospital of Soochow University, Suzhou, 215004, PR China
| | - Zhilin Jiang
- Center for Molecular Imaging and Nuclear Medicine, State Key Laboratory of Radiation Medicine and Protection, School for Radiological and Interdisciplinary Sciences (RAD-X), Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Suzhou, 215123, PR China
| | - Hanghang Liu
- Center for Molecular Imaging and Nuclear Medicine, State Key Laboratory of Radiation Medicine and Protection, School for Radiological and Interdisciplinary Sciences (RAD-X), Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Suzhou, 215123, PR China
| | - Qiao Sun
- Center for Molecular Imaging and Nuclear Medicine, State Key Laboratory of Radiation Medicine and Protection, School for Radiological and Interdisciplinary Sciences (RAD-X), Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Suzhou, 215123, PR China
| | - Zhen Li
- Center for Molecular Imaging and Nuclear Medicine, State Key Laboratory of Radiation Medicine and Protection, School for Radiological and Interdisciplinary Sciences (RAD-X), Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Suzhou, 215123, PR China.
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Zhang Y, Hu Y, Li G, Zhang R. A composite prepared from gold nanoparticles and a metal organic framework (type MOF-74) for determination of 4-nitrothiophenol by surface-enhanced Raman spectroscopy. Mikrochim Acta 2019; 186:477. [PMID: 31250191 DOI: 10.1007/s00604-019-3618-z] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2019] [Accepted: 06/15/2019] [Indexed: 12/13/2022]
Abstract
Core-shell nanoparticles (NPs) consisting of a gold core and a metal-organic framework shell (type MOF-74) were synthesized via one-pot synthesis. The NPs exhibit highly sensitive and stable SERS activity for the detection of 4-nitrothiophenol, with a specific band at 1337 cm-1. The method has a linear response in 0.10-10 μmol·L-1 analyte concentration range and a lower detection limit of 69 nmol·L-1. The potential application of this novel SERS substrate was evaluated by two model reactions involving 4-nitrothiophenol. The first involves in-situ SERS monitoring of the surface plasmon-induced nitration of aromatic rings without adding conventional acid catalyst. The second involves the photocatalytic reduction of 4-nitrothiophenol to 4-thioaminophenol in the presence of Au/MOF-74 under 785-nm laser irradiation. The plasmon-assisted dimerization of 4-nitrothiophenol to form 4,4'-dimercaptoazobenzene can also be monitored simultaneously. Graphical abstract Schematic presentation of a nanoparticle SERS substrate consisting of gold core and MOF-74 shell, which was applied to detection of 4-nitrothiophenol. The Au/MOF-74 was successfully used for in-situ monitoring of two model reactions involving 4-nitrothiophenol by SERS.
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Affiliation(s)
- Yanshu Zhang
- School of Chemistry, Sun Yat-sen University, Guangzhou, 510275, China
| | - Yufei Hu
- School of Chemistry, Sun Yat-sen University, Guangzhou, 510275, China
| | - Gongke Li
- School of Chemistry, Sun Yat-sen University, Guangzhou, 510275, China.
| | - Runkun Zhang
- School of Chemistry, Sun Yat-sen University, Guangzhou, 510275, China.
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Dhanalekshmi KI, Sangeetha K, Meena KS, Magesan P, Manikandan A, Jayamoorthy K. Photodynamic activity and DNA binding studies of Pd@SiO 2 core-shell nanoparticles in vitro. Photodiagnosis Photodyn Ther 2019; 26:79-84. [PMID: 30862470 DOI: 10.1016/j.pdpdt.2019.03.008] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2018] [Revised: 03/07/2019] [Accepted: 03/08/2019] [Indexed: 10/27/2022]
Abstract
Metal-semiconductor core-shell type Pd@SiO2 nanoparticles (NPs) were successfully synthesized by Stober's method and the product was characterized by UV-vis, XRD, FT-IR, SEM, HR-TEM and EDX techniques. In vitro Photodynamic activity and DNA binding studies of Pd@SiO2 core shell nanoparticles were studied. Cell viability of the core-shell nanoparticles against HeLa cell line was screened by MTT assay after exposing at different light doses. The outcome of the present study indicates that the core-shell Pd@SiO2 NPs are highly stable and exhibited strong photodynamic efficiency under LED light illumination in HeLa cells. The results indicated that SiO2 supported on the surface of Pd NPs not only prevented the aggregation in addition exhibited remarkable photodynamic activity.
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Affiliation(s)
- K I Dhanalekshmi
- Dept. of Chemistry, Bharath Institute of Higher Education & Research, Bharath University, Chennai 600 073, Tamil Nadu, India.
| | - K Sangeetha
- Dept. of Biotechnology, Bharath Institute of Higher Education & Research, Bharath University, Chennai 600 073, Tamil Nadu, India
| | - K S Meena
- Dept. of Biotechnology, Bharath Institute of Higher Education & Research, Bharath University, Chennai 600 073, Tamil Nadu, India
| | - P Magesan
- Dept. of Chemistry, Bharath Institute of Higher Education & Research, Bharath University, Chennai 600 073, Tamil Nadu, India
| | - A Manikandan
- Dept. of Chemistry, Bharath Institute of Higher Education & Research, Bharath University, Chennai 600 073, Tamil Nadu, India
| | - K Jayamoorthy
- Dept. of Chemistry, St. Joseph's College of Engineering, Chennai, Tamil Nadu, India
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Gutierrez AM, Bhandari R, Weng J, Stromberg A, Dziubla TD, Hilt JZ. Novel magnetic core-shell nanoparticles for the removal of polychlorinated biphenyls from contaminated water sources. Mater Chem Phys 2019; 223:68-74. [PMID: 31452560 PMCID: PMC6710019 DOI: 10.1016/j.matchemphys.2018.10.045] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
In this work, we developed novel core-shell nanoparticle systems with magnetic core and polymer shell via atom transfer radical polymerization for use as high affinity nanoadsorbents for organic contaminants in water and wastewater treatment. Polyphenolic-based moieties, curcumin multiacrylate (CMA) and quercetin multiacrylate (QMA), were incorporated into poly(ethylene glycol) (PEG) based polymeric shells to create high affinity binding sites for the capture of polychlorinated biphenyls (PCBs) as a model pollutant. The resulting magnetic nanoparticles (MNPs) were characterized by Fourier transform infrared spectroscopy (FTIR), thermogravimetric analysis (TGA), transmission electron microscopy (TEM), X-ray diffraction (XRD), dynamic light scattering (DLS), and UV-visible spectroscopy. The affinity of these novel materials for PCB 126 was evaluated and fitted to the nonlinear Langmuir model to determine binding affinities (KD). The KD values obtained were: PEG MNPs (8.42 nM) < IO MNPs (8.23nM) < QMA MNPs (5.88 nM) < CMA MNPs (2.72 nM), demonstrating that the presence of polyphenolic-based moieties enhanced PCB 126 binding affinity, which is hypothesized to be a result of π - π stacking interactions. These values are lower that KD values for activated carbon, providing strong evidence that these novel core-shell nanoparticles have a promising application as nanoadsorbents for specific organic contaminants offering a cost effective alternative to current remediation approaches.
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Affiliation(s)
- Angela M. Gutierrez
- Department of Chemical and Materials Engineering, University of Kentucky, Lexington, KY, 40506, USA
- Superfund Research Center, University of Kentucky, Lexington, KY, 40506, USA
| | - Rohit Bhandari
- Department of Chemical and Materials Engineering, University of Kentucky, Lexington, KY, 40506, USA
- Superfund Research Center, University of Kentucky, Lexington, KY, 40506, USA
| | - Jiaying Weng
- Superfund Research Center, University of Kentucky, Lexington, KY, 40506, USA
- Department of Statistics, University of Kentucky, Lexington, KY, 40506, USA
| | - Arnold Stromberg
- Superfund Research Center, University of Kentucky, Lexington, KY, 40506, USA
- Department of Statistics, University of Kentucky, Lexington, KY, 40506, USA
| | - Thomas D. Dziubla
- Department of Chemical and Materials Engineering, University of Kentucky, Lexington, KY, 40506, USA
- Superfund Research Center, University of Kentucky, Lexington, KY, 40506, USA
| | - J. Zach Hilt
- Department of Chemical and Materials Engineering, University of Kentucky, Lexington, KY, 40506, USA
- Superfund Research Center, University of Kentucky, Lexington, KY, 40506, USA
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Lv ZS, Zhu XY, Meng HB, Feng JJ, Wang AJ. One-pot synthesis of highly branched Pt@Ag core-shell nanoparticles as a recyclable catalyst with dramatically boosting the catalytic performance for 4-nitrophenol reduction. J Colloid Interface Sci 2019; 538:349-56. [PMID: 30530032 DOI: 10.1016/j.jcis.2018.11.109] [Citation(s) in RCA: 65] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2018] [Revised: 11/29/2018] [Accepted: 11/30/2018] [Indexed: 11/20/2022]
Abstract
Herein, highly branched Pt@Ag core-shell nanoparticles (Pt@Ag NPs) were fabricated by a facile one-pot wet-chemical approach, where poly(ethyleneimine) (PEI) served as structure-directing and capping agents. Their structure, morphology and composition were mainly characterized by a set of techniques. And their growth mechanism was discussed in some detail. The prepared catalyst exhibited remarkable enhancement in catalytic activity of 4-nitrophenol (4-NP) reduction as a proof-of-concept application, surpassing commercial Pt black and home-made Ag NPs catalysts. Also, the as-obtained catalyst showed superior stability without sacrificing the catalytic activity. These observations endow the catalyst possibility for practical applications in nitrophenols environmental remediation.
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S R, M P. Multi-functional core-shell Fe 3O 4@Au nanoparticles for cancer diagnosis and therapy. Colloids Surf B Biointerfaces 2018; 174:252-259. [PMID: 30469046 DOI: 10.1016/j.colsurfb.2018.11.004] [Citation(s) in RCA: 48] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2018] [Revised: 11/01/2018] [Accepted: 11/03/2018] [Indexed: 11/26/2022]
Abstract
Multi-functional core-shell Fe3O4@Au nanoparticles (Fe3O4@Au-DOX-mPEG/PEG-FA NPs) conjugated with doxorubicin (DOX), methoxy poly(ethylene glycol) (mPEG), and folic acid-linked poly(ethylene glycol) (PEG-FA) were synthesized for cancer theranostic applications. In the developed NPs, the DOX was chemically conjugated at the surface of core-shell Fe3O4@Au NPs using L-cysteine methyl ester (LCME) as a linker by acid-sensitive hydrazone bond. The formation of Fe3O4@Au-DOX-mPEG/PEG-FA NPs was confirmed by 1H-NMR analysis. The TEM image and DLS studies showed that the mean diameter of the prepared NPs was about 18 and 38 nm, respectively. Due to the existence of superparamagnetic Fe3O4, the Fe3O4@Au-DOX-mPEG/PEG-FA NPs presented the saturation magnetization (Ms) value of 23 emu/g. The developed NPs displayed the maximum amount of drug release in the acidic medium than that in the mild alkaline medium because of the presence of acid-sensitive hydrazone bond. Due to the presence of FA, the Fe3O4@Au-DOX-mPEG/PEG-FA NPs displayed the increased cellular uptake through a folate-receptor-mediated endocytosis, which results in the improved cytotoxic effect on the HeLa cells. Under the laser irradiation, the cytotoxicity of Fe3O4@Au-DOX-mPEG/PEG-FA NPs was found to be improved due to the photothermal effect of Au shell existing in the NPs. These results reveal that the Fe3O4@Au-DOX-mPEG/PEG-FA NPs could be a promising tumour-targeted drug delivery system with the capabilities of combined MR/CT imaging, photothermal, and chemotherapy of tumours.
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Affiliation(s)
- Rajkumar S
- Department of Chemistry, Hindustan Institute of Technology and Science, Padur, Chennai, 603 103, India
| | - Prabaharan M
- Department of Chemistry, Hindustan Institute of Technology and Science, Padur, Chennai, 603 103, India.
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Da Q, Gu Y, Peng X, Zhang L, Du S. Colorimetric and visual detection of mercury(II) based on the suppression of the interaction of dithiothreitol with agar-stabilized silver-coated gold nanoparticles. Mikrochim Acta 2018; 185:357. [PMID: 29974244 DOI: 10.1007/s00604-018-2899-y] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2018] [Accepted: 06/28/2018] [Indexed: 01/15/2023]
Abstract
A colorimetric and visual method is described for the determination of mercury(II) ion. A gel consisting of agar-stabilized silver-coated gold nanoparticles (Au@Ag NPs) was prepared. The reaction with dithiothreitol (DTT) via thiol-Ag chemistry results in an orange to purple color change of the gel. However, in the presence of Hg(II), the reaction of DTT with the silver shells is suppressed due to the strong thiophilicity of Hg(II). The color of the gel changes from purple to red to orange in the presence of increasing concentrations of Hg(II). The Au@Ag NPs therefore are a viable optical probe for Hg(II) which can be detected in concentration as low as 78 nM via dual-wavelength ratiometric absorbance (A390/A520), and at 1 μM levels with bare eyes. The use of agar as a support is mandatory to prevent the aggregation of the NPs and also improves selectivity. The method was applied to the analysis of spiked samples, and recoveries ranged between 96.3 and 104%. The assay is easy, inexpensive, and in our perception represents an attractive tool for on-site visual detection of Hg(II). Graphical abstract Schematic of the assay. With increasing concentrations of Hg(II), the oxidative etching of silver shells caused by dithiothreitol (DTT) is gradually inhibited, and the color of agar-stabilized Au@Ag NP gel varies from purple to red, and finally to orange. This can be used for visual detection of Hg(II).
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Affiliation(s)
- Qiang Da
- School of Pharmacy, Nanjing Medical University, Nanjing, 211166, Jiangsu, China
| | - Yuanyuan Gu
- School of Pharmacy, Nanjing Medical University, Nanjing, 211166, Jiangsu, China
| | - Xiafeng Peng
- School of Basic Medical Sciences, Nanjing Medical University, Nanjing, 211166, Jiangsu, China
| | - Liying Zhang
- School of Pharmacy, Nanjing Medical University, Nanjing, 211166, Jiangsu, China.
| | - Shuhu Du
- School of Pharmacy, Nanjing Medical University, Nanjing, 211166, Jiangsu, China.
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Hara S, Aisu J, Kato M, Aono T, Sugawa K, Takase K, Otsuki J, Shimizu S, Ikake H. One-pot synthesis of monodisperse CoFe 2O 4@Ag core-shell nanoparticles and their characterization. Nanoscale Res Lett 2018; 13:176. [PMID: 29884975 PMCID: PMC5993709 DOI: 10.1186/s11671-018-2544-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/19/2017] [Accepted: 04/18/2018] [Indexed: 06/08/2023]
Abstract
In recent years, monodispersed magnetic nanoparticles with a core/shell structure are expected for their wide applications including magnetic fluid, recoverable catalysts, and biological analysis. However, their synthesis method needs numerous processes such as solvent substitution, exchange of protective agents, and centrifugation. A simple and rapid method for the synthesis of monodispersed core-shell nanoparticles makes it possible to accelerate their further applications. This paper describes a simple and rapid one-pot synthesis of core (CoFe2O4)-shell (Ag) nanoparticles with high monodispersity. The synthesized nanoparticles showed plasmonic light absorption owing to the Ag shell. Moreover, the magnetic property of the nanoparticles had a soft magnetic behavior at room temperature and a hard magnetic behavior at 5 K. In addition, the nanoparticles showed high monodispersity with a low polydispersity index (PDI) value of 0.083 in hexane.
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Affiliation(s)
- Shuta Hara
- Department of Materials and Applied Chemistry, College of Science and Technology, Nihon University, 1-8-14 Kandasurugadai, Chiyoda-ku, Tokyo, 101-8308 Japan
| | - Jumpei Aisu
- Department of Materials and Applied Chemistry, College of Science and Technology, Nihon University, 1-8-14 Kandasurugadai, Chiyoda-ku, Tokyo, 101-8308 Japan
| | - Masahiro Kato
- Department of Materials and Applied Chemistry, College of Science and Technology, Nihon University, 1-8-14 Kandasurugadai, Chiyoda-ku, Tokyo, 101-8308 Japan
| | - Takashige Aono
- Department of Physics, College of Science and Technology, Nihon University, 1-8-14 Kandasurugadai, Chiyoda-ku, Tokyo, 101-8308 Japan
| | - Kosuke Sugawa
- Department of Materials and Applied Chemistry, College of Science and Technology, Nihon University, 1-8-14 Kandasurugadai, Chiyoda-ku, Tokyo, 101-8308 Japan
| | - Kouichi Takase
- Department of Physics, College of Science and Technology, Nihon University, 1-8-14 Kandasurugadai, Chiyoda-ku, Tokyo, 101-8308 Japan
| | - Joe Otsuki
- Department of Materials and Applied Chemistry, College of Science and Technology, Nihon University, 1-8-14 Kandasurugadai, Chiyoda-ku, Tokyo, 101-8308 Japan
| | - Shigeru Shimizu
- Department of Materials and Applied Chemistry, College of Science and Technology, Nihon University, 1-8-14 Kandasurugadai, Chiyoda-ku, Tokyo, 101-8308 Japan
| | - Hiroki Ikake
- Department of Materials and Applied Chemistry, College of Science and Technology, Nihon University, 1-8-14 Kandasurugadai, Chiyoda-ku, Tokyo, 101-8308 Japan
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Sedeky AS, Khalil IA, Hefnawy A, El-Sherbiny IM. Development of core-shell nanocarrier system for augmenting piperine cytotoxic activity against human brain cancer cell line. Eur J Pharm Sci 2018; 118:103-112. [PMID: 29597041 DOI: 10.1016/j.ejps.2018.03.030] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2017] [Revised: 02/27/2018] [Accepted: 03/26/2018] [Indexed: 01/12/2023]
Abstract
Brain tumor has a low prognosis with only 15% survival rate (5 years after diagnosis). Many of the current therapeutics have limited activity due to their inability to cross the blood brain barrier which retards drug accumulation in tumor site and causes drug resistance. Piperine, a phytochemical drug with poor solubility, could be an alternative to current therapeutics after evading its solubility and permeability limitations. Piperine micellization was optimized to improve drug solubility. Positively charged trimethyl-chitosan was synthesized then electrostatically adsorbed onto piperine nanomicelles forming core-shell nanoparticles. Physicochemical and morphological characterizations, and in-vitro release were performed. Cytotoxicity on human brain cancer cell line (Hs683) was evaluated using IC50 determination, cell cycle arrest analysis, apoptosis and enzyme-linked immunosorbent assay. Optimum piperine-loaded core-shell nanoparticles were successfully fabricated with double-phase release model. Significant improvement in cytotoxicity than free drug was noted with increasing in G2/M-phase and pre-GI-phase population, apoptotic/necrotic rates and inhibition of CDK2a.
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Affiliation(s)
- Abanoub S Sedeky
- Nanomedicine Lab, Center of Materials Science (CMS), Zewail City of Science and Technology, 6th of October, Giza 12578, Egypt
| | - Islam A Khalil
- Nanomedicine Lab, Center of Materials Science (CMS), Zewail City of Science and Technology, 6th of October, Giza 12578, Egypt; Department of Pharmaceutics and Industrial Pharmacy, College of Pharmacy and Drug Manufacturing, Misr University of Science and Technology (MUST), 6th of October, Giza 12566, Egypt
| | - Amr Hefnawy
- Nanomedicine Lab, Center of Materials Science (CMS), Zewail City of Science and Technology, 6th of October, Giza 12578, Egypt
| | - Ibrahim M El-Sherbiny
- Nanomedicine Lab, Center of Materials Science (CMS), Zewail City of Science and Technology, 6th of October, Giza 12578, Egypt.
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40
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He B, Ma S, Peng G, He D. TAT-modified self-assembled cationic peptide nanoparticles as an efficient antibacterial agent. Nanomedicine 2017; 14:365-372. [PMID: 29170111 DOI: 10.1016/j.nano.2017.11.002] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/19/2016] [Revised: 07/26/2017] [Accepted: 11/04/2017] [Indexed: 12/12/2022]
Abstract
The increasing emergence of drug resistant pathogenic bacteria poses a great challenge to clinical therapy and a threat to public health. Cationic peptides have received great attention for their unique antibacterial mechanism and ability to combat drug-resistant bacteria. In this study, we designed a TAT-modified cationic peptide PA-28 which self-assembled into nanoparticles of about 150 nm. These nanoparticles showed strong antimicrobial activities against both gram-positive and gram-negative bacteria, including drug-resistant bacteria. They were more potent than the unassembled counterpart peptide nonalysine (K9). Their antibacterial mechanism of directly destructing bacterial wall/membrane reduces the possibility of developing bacterial resistance. In vivo anti-infective experiments showed that these nanoparticles were able to penetrate the blood-brain barrier to inhibit bacterial growth in infected brains of rats. In addition, these nanoparticles induced low hemolysis below the minimum inhibitory concentration. Therefore, the peptide designed in this study is a promising and efficient antibacterial agent against bacterial infections.
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Affiliation(s)
- Bi He
- School of Chemistry and Chemical Engineering, Guangdong Provincial Key Laboratory for Green Chemical Product Technology, South China University of Technology, Guangzhou, China
| | - Shiyi Ma
- School of Chemistry and Chemical Engineering, Guangdong Provincial Key Laboratory for Green Chemical Product Technology, South China University of Technology, Guangzhou, China
| | - Guifu Peng
- Clinical Laboratory, Affiliated Hospital of South China University of Technology, Guangzhou, China
| | - Daohang He
- School of Chemistry and Chemical Engineering, Guangdong Provincial Key Laboratory for Green Chemical Product Technology, South China University of Technology, Guangzhou, China.
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41
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Mukhopadhyay P, Maity S, Mandal S, Chakraborti AS, Prajapati AK, Kundu PP. Preparation, characterization and in vivo evaluation of pH sensitive, safe quercetin-succinylated chitosan-alginate core-shell-corona nanoparticle for diabetes treatment. Carbohydr Polym 2017; 182:42-51. [PMID: 29279124 DOI: 10.1016/j.carbpol.2017.10.098] [Citation(s) in RCA: 104] [Impact Index Per Article: 14.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2017] [Revised: 10/29/2017] [Accepted: 10/31/2017] [Indexed: 10/18/2022]
Abstract
The study aims for development of an efficient polymeric carrier for evaluating pharmaceutical potentialities in modulating the drug profile of quercetin (QUE) in anti-diabetic research. Alginate and succinyl chitosan are focused in this investigation for encapsulating quercetin into core-shell nanoparticles through ionic cross linking. The FT-IR, XRD, NMR, SEM, TEM, drug entrapment and loading efficiency are commenced to examine the efficacy of the prepared nanoparticles in successful quercetin delivery. Obtained results showed the minimum particle size of ∼91.58nm and ∼95% quercetin encapsulation efficiently of the particles with significant pH sensitivity. Kinetics of drug release suggested self-sustained QUE release following the non-fickian trend. A pronounced hypoglycaemic effect and efficient maintenance of glucose homeostasis was evident in diabetic rat after peroral delivery of these quercetin nanoparticles in comparison to free oral quercetin. This suggests the fabrication of an efficient carrier of oral quercetin for diabetes treatment.
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Affiliation(s)
- Piyasi Mukhopadhyay
- Department of Chemistry, Faculty of Science, The M. S. University of Baroda, Vadodara, 390 002, India.
| | - Subhajit Maity
- Department of Bio-Physics, Molecular Biology and Bioinformatics, University of Calcutta, 92,A.P.C. Road Kolkata 700009, India
| | | | - Abhay Sankar Chakraborti
- Department of Bio-Physics, Molecular Biology and Bioinformatics, University of Calcutta, 92,A.P.C. Road Kolkata 700009, India
| | - A K Prajapati
- Department of Chemistry, Faculty of Science, The M. S. University of Baroda, Vadodara, 390 002, India.
| | - P P Kundu
- Department of Polymer Science and Technology, University of Calcutta, 92, A.P.C. Road Kolkata 700009, India; Department of Chemical Engineering, Indian Institute of Technology, Roorkee 247667, India.
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42
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Shah MT, Alveroglu E. Synthesis and characterization of magnetite nanoparticles having different cover layer and investigation of cover layer effect on the adsorption of lysozyme and bovine serum albumin. Mater Sci Eng C Mater Biol Appl 2017; 81:393-399. [PMID: 28887990 DOI: 10.1016/j.msec.2017.08.033] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/12/2017] [Revised: 08/10/2017] [Accepted: 08/10/2017] [Indexed: 01/22/2023]
Abstract
In this study, differently coated superparamagnetic Fe3O4 (magnetite) nanoparticles were synthesized, characterized and used for lysozyme (Ly) and bovine serum albumin (BSA) adsorption. SiO2, carbon nanotubes (CNTs) and graphene were used for covering the readily synthesized magnetite nanoparticles to elucidate the effect of cover layer on the protein adsorption kinetics and capacities of nanostructure. XRD, FTIR, AFM, SEM, VSM and fluorescence measurements were used for the characterization of the samples and investigating the adsorption kinetics of Ly and BSA by these nanoparticles. The average particle size of the Fe3O4 nanoparticles are approximately found as 10nm and VSM measurement shows that the Fe3O4 particles have superparamagnetic behavior with no hysteresis and remnant. The adsorption kinetic of proteins on nanosized material is followed via fluorescence method. All the nanostructures with different cover layers obey pseudo first order kinetics and SiO2 coated nanoparticles show the fastest kinetics and capabilities for Ly and BSA adsorption.
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Affiliation(s)
- Muhammad Tariq Shah
- Istanbul Technical University, Faculty of Science and Letters, Department of Physics Engineering, 34469, Maslak, Istanbul, Turkey; National Centre of Excellence in Analytical Chemistry, University of Sindh, Jamshoro 76080, Pakistan
| | - Esra Alveroglu
- Istanbul Technical University, Faculty of Science and Letters, Department of Physics Engineering, 34469, Maslak, Istanbul, Turkey.
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43
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Lien J, Peck KA, Su M, Guo T. Sub-monolayer silver loss from large gold nanospheres detected by surface plasmon resonance in the sigmoidal region. J Colloid Interface Sci 2016; 479:173-181. [PMID: 27388131 DOI: 10.1016/j.jcis.2016.06.049] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2016] [Revised: 06/20/2016] [Accepted: 06/21/2016] [Indexed: 11/25/2022]
Abstract
Nanosilver becomes labile upon entering the human body or the environment. This lability creates silver species with antimicrobial properties that make nanosilver attractive as active components in many consumer products, wound dressings, and agricultural applications. Because lability depends strongly on morphology, it is imperative to use a material with constant lability throughout kinetic studies so that accurate lability data can be acquired with efficient detection. Here 2.5nm thick silver was coated onto 90-nm diameter gold nanosphere cores and this surface silver layer was gradually removed by either chemical or X-ray radiation etching. The most sensitive region of a sigmoidal surface plasmon resonance (SPR) response as a function of silver thickness was found for the first time between 0.9- and 1.6-nm thick silver, revealing a new nanosilver standard for lability studies. The SPR peak position detection sensitivity is 8nm (SPR peak shift)/nm (silver thickness change) within this steepest region of the plasmon response curve whereas outside, sensitivity drops to 1nm/nm. Since the centroid of SPR profiles can be discerned with 0.25nm precision, the 8-nm/nm sensitivity means it is possible to detect a 0.3-angstrom or sub-monolayer change in silver thickness. The SPR response simulated by discrete dipole approximation (DDA) was an identical sigmoidal function between 0 and 2nm of silver coating. These findings were supported by several other analytical measurements, which confirmed no silver recoating during these etching processes.
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Affiliation(s)
- Jennifer Lien
- Department of Chemistry, University of California, Davis, CA 95616, United States
| | - Kristin A Peck
- Department of Chemistry, University of California, Davis, CA 95616, United States
| | - Mengqi Su
- Department of Chemistry, University of California, Davis, CA 95616, United States
| | - Ting Guo
- Department of Chemistry, University of California, Davis, CA 95616, United States.
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44
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Yu MZ, Pang WH, Yang T, Wang JC, Wei L, Qiu C, Wu YF, Liu WZ, Wei W, Guo XY, Zhang Q. Systemic delivery of siRNA by T7 peptide modified core-shell nanoparticles for targeted therapy of breast cancer. Eur J Pharm Sci 2016; 92:39-48. [PMID: 27355138 DOI: 10.1016/j.ejps.2016.06.020] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2016] [Revised: 05/25/2016] [Accepted: 06/22/2016] [Indexed: 12/31/2022]
Abstract
Systemic delivery of siRNA is the most challenging step to transfer RNAi to clinical application for breast cancer therapy. In this study, the tumor targeted, T7 peptide modified core-shell nanoparticles (named as T7-LPC/siRNA NPs) were constructed to achieve effective systemic delivery of siRNA. The core-shell structure of T7-LPC/siRNA NPs enables them to encapsulate siRNA in the core and protect it from RNase degradation during circulation. In vitro cellular uptake and gene silencing experiments demonstrated that T7-LPC/siEGFR NPs could deliver EGFR siRNA into breast cancer cells through receptor mediated endocytosis and effectively down-regulate the EGFR expression. In vivo distribution study proved the T7-LPC/siRNA NPs could deliver fluorescence labeled siRNA to the tumor site more efficiently than the non-targeted PEG-LPC/siRNA NPs after intravenous administration. Furthermore, the experiments of in vivo tumor therapy confirmed that intravenous administration of T7-LPC/siEGFR NPs led to an effective EGFR down-regulation and an obvious inhibition of breast tumor growth, with little activation of immune responses and negligible body weight loss. These results suggested that T7-LPC/siRNA NPs could be an effective and safe systemic siRNA delivery system for RNAi-based breast cancer therapy.
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Affiliation(s)
- Min-Zhi Yu
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing 100191, People's Republic of China
| | - Wen-Hao Pang
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing 100191, People's Republic of China
| | - Ting Yang
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing 100191, People's Republic of China
| | - Jian-Cheng Wang
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing 100191, People's Republic of China.
| | - Lin Wei
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing 100191, People's Republic of China
| | - Chong Qiu
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing 100191, People's Republic of China
| | - Yi-Fan Wu
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing 100191, People's Republic of China
| | - Wei-Zhong Liu
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing 100191, People's Republic of China
| | - Wei Wei
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing 100191, People's Republic of China
| | - Xi-Ying Guo
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing 100191, People's Republic of China
| | - Qiang Zhang
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing 100191, People's Republic of China
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45
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Liu Y, Wang H, Xiong C, Yuan Y, Chai Y, Yuan R. A sensitive electrochemiluminescence immunosensor based on luminophore capped Pd@Au core-shell nanoparticles as signal tracers and ferrocenyl compounds as signal enhancers. Biosens Bioelectron 2016; 81:334-340. [PMID: 26985586 DOI: 10.1016/j.bios.2016.03.014] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2015] [Revised: 02/27/2016] [Accepted: 03/08/2016] [Indexed: 10/22/2022]
Abstract
In this work, N-(aminobutyl)-N-(ethylisoluminol) (ABEI), an analogue of luminol, is served as both the reductant and luminescence reagent to synthesize ABEI capped Pd@Au core-shell nanoparticles (ABEI-Pd@AuNPs). The nanoparticles not only exhibit inherent electrochemiluminescence (ECL) property, but also possess advantages of noble-metal nanomaterials such as outstanding electronic property, high specific surface area and good biocompatibility. In order to enhance the luminescence efficiency, ferrocene monocarboxylic acid (Fc) as catalyzer is grafted on the surface of ABEI-Pd@AuNPs with the aid of l-cysteine (l-Cys). When the Fc is electrochemically oxidized to ferricinium cation species (Fc(+)), the decomposition of H2O2 which existed in detection solution can be catalyzed by Fc(+) to generate oxygen-related free radicals, resulting effective signal amplification for ABEI-H2O2 system. For potential applications, the Pd@Au core-shell nanoparticles bifunctionalized by ABEI and catalyzer are employed as nano-carriers to immobilize detection antibody (Ab2). Based on sandwiched immunoreactions, a "signal-on" ECL immunosensor is developed for detection of human collagen type IV (Col IV), a potential biomarker associated with diabetic nephropathy. Consequently, the proposed immunosensor provides a wide linear detection ranging from 1pgmL(-1) to 10ngmL(-1) with a relatively low detection limit of 0.3pgmL(-1) (S/N=3).
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Affiliation(s)
- Yuting Liu
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Haijun Wang
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Chengyi Xiong
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Yali Yuan
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Yaqin Chai
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China.
| | - Ruo Yuan
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China.
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46
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Meena KS, Dhanalekshmi KI, Jayamoorthy K. Study of photodynamic activity of Au@SiO2 core-shell nanoparticles in vitro. Mater Sci Eng C Mater Biol Appl 2016; 63:317-22. [PMID: 27040225 DOI: 10.1016/j.msec.2016.03.010] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/17/2015] [Revised: 01/23/2016] [Accepted: 03/01/2016] [Indexed: 11/15/2022]
Abstract
Metal-semiconductor core-shell type Au@SiO2 nanoparticles were prepared by Stober's method. They were characterized by absorption, XRD, HR-TEM and EDAX techniques. The resulting modified core-shell nanoparticles shows that the formation of singlet oxygen, which was confirmed by ESR technique. The photohemolysis studies were carried out under two different experimental conditions. It is observed that the photohemolysis increases with concentration as well as light dose. Cell viability of the core-shell nanoparticles against HeLa cell lines were studied by MTT assay method. The outcomes of the present study indicate that, the Au@SiO2 core-shell nanoparticles are extremely stable with a very high photodynamic efficiency under visible light illumination.
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Affiliation(s)
- K S Meena
- PG & Research Department of Chemistry, Queen Mary's College, Chennai 600 004, Tamil Nadu, India.
| | - K I Dhanalekshmi
- PG & Research Department of Chemistry, Queen Mary's College, Chennai 600 004, Tamil Nadu, India.
| | - K Jayamoorthy
- Department of Chemistry, St. Joseph's College of Engineering, Chennai 600119, Tamil Nadu, India
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Varga N, Csapó E, Majláth Z, Ilisz I, Krizbai IA, Wilhelm I, Knapp L, Toldi J, Vécsei L, Dékány I. Targeting of the kynurenic acid across the blood-brain barrier by core-shell nanoparticles. Eur J Pharm Sci 2016; 86:67-74. [PMID: 26924227 DOI: 10.1016/j.ejps.2016.02.012] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2015] [Revised: 01/29/2016] [Accepted: 02/21/2016] [Indexed: 11/26/2022]
Abstract
Core-shell nanoparticles (CSNPs) were developed to get over therapeutic amount of kynurenic acid (KYNA) across the blood-brain barrier (BBB). Bovine serum albumin (BSA) was used as core for encapsulation of KYNA and the BSA/KYNA composite was finally encapsulated by poly(allylamine) hydrochloride (PAH) polymer as shell. In the interest of the optimization of the synthesis the BSA and KYNA interaction was studied by two-dimensional surface plasmon resonance (SPR) technique as well. The average size of d~100 nm was proven by dynamic light scattering (DLS) and transmission electron microscopy (TEM), while the structure of the composites was characterized by fluorescence (FL) and circular dichroism (CD) spectroscopy. The in vitro release properties of KYNA were investigated by a vertical diffusion cell at 25.0 °C and 37.5 °C and the kinetic of the release were discussed. The penetration capacity of the NPs into the central nervous system (CNS) was tested by an in vitro BBB model. The results demonstrated that the encapsulated KYNA had significantly higher permeability compared to free KYNA molecules. In the neurobiological serial of in vivo experiments the effects of peripherally administered KYNA with CSNPs were studied in comparison with untreated KYNA. These results clearly proved that KYNA in the CSNPs, administrated peripherally is suitable to cross the BBB and to induce electrophysiological effects within the CNS. As the neuroprotective properties of KYNA nowadays are proven, the importance of the results is obvious.
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Affiliation(s)
- N Varga
- MTA-SZTE Supramolecular and Nanostructured Materials Research Group, Department of Medical Chemistry, Faculty of Medicine, University of Szeged, H-6720 Dóm tér 8, Szeged, Hungary
| | - E Csapó
- MTA-SZTE Supramolecular and Nanostructured Materials Research Group, Department of Medical Chemistry, Faculty of Medicine, University of Szeged, H-6720 Dóm tér 8, Szeged, Hungary
| | - Z Majláth
- Department of Neurology, University of Szeged, H-6725 Semmelweis u. 6, Szeged, Hungary
| | - I Ilisz
- Department of Inorganic and Analytical Chemistry, University of Szeged, H-6720 Dóm tér 7, Szeged, Hungary
| | - I A Krizbai
- Institute of Biophysics, Biological Research Centre of the Hungarian Academy of Sciences, H-6726 Temesvári krt. 62, Szeged, Hungary
| | - I Wilhelm
- Institute of Biophysics, Biological Research Centre of the Hungarian Academy of Sciences, H-6726 Temesvári krt. 62, Szeged, Hungary
| | - L Knapp
- Department of Physiology, Anatomy and Neuroscience, University of Szeged, H-6726 Közép fasor 52, Szeged, Hungary
| | - J Toldi
- Department of Physiology, Anatomy and Neuroscience, University of Szeged, H-6726 Közép fasor 52, Szeged, Hungary; MTA-SZTE Neuroscience Research Group, H-6725 Semmelweis u. 6, Szeged, Hungary
| | - L Vécsei
- Department of Neurology, University of Szeged, H-6725 Semmelweis u. 6, Szeged, Hungary; Department of Physiology, Anatomy and Neuroscience, University of Szeged, H-6726 Közép fasor 52, Szeged, Hungary
| | - I Dékány
- MTA-SZTE Supramolecular and Nanostructured Materials Research Group, Department of Medical Chemistry, Faculty of Medicine, University of Szeged, H-6720 Dóm tér 8, Szeged, Hungary.
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48
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Hardiansyah A, Chen AY, Liao HL, Yang MC, Liu TY, Chan TY, Tsou HM, Kuo CY, Wang JK, Wang YL. Core-shell of FePt@SiO2-Au magnetic nanoparticles for rapid SERS detection. Nanoscale Res Lett 2015; 10:412. [PMID: 26489855 PMCID: PMC4614849 DOI: 10.1186/s11671-015-1111-0] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/24/2015] [Accepted: 10/08/2015] [Indexed: 05/23/2023]
Abstract
In this study, multifunctional hybrid nanoparticles composed of iron platinum (FePt), silica (SiO2), and gold nanoparticles (AuNPs) had been developed for surface-enhanced Raman scattering (SERS) application. Core-shell structure of SiO2 and FePt nanoparticles (FePt@SiO2) was fabricated through sol-gel process and then immobilized gold nanoparticles onto the surface of FePt@SiO2, which displays huge Raman enhancement effect and magnetic separation capability. The resulting core-shell nanoparticles were subject to evaluation by transmission electron microscopy (TEM), Energy-dispersive X-ray spectroscopy (EDX), zeta potential measurement, and X-ray photoelectron spectroscopy (XPS). TEM observation revealed that the particle size of resultant nanoparticles displayed spherical structure with the size ~30 nm and further proved the successful immobilization of Au onto the surface of FePt@SiO2. Zeta potential measurement exhibited the successful reaction between FePt@SiO2 and AuNPs. The rapid SERS detection and identification of small biomolecules (adenine) and microorganisms (gram-positive bacteria, Staphylococcus aureus) was conducted through Raman spectroscopy. In summary, the novel core-shell magnetic nanoparticles could be anticipated to apply in the rapid magnetic separation under the external magnetic field due to the core of the FePt superparamagnetic nanoparticles and label-free SERS bio-sensing of biomolecules and bacteria.
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Affiliation(s)
- Andri Hardiansyah
- Department of Materials Science and Engineering, National Taiwan University of Science and Technology, Taipei, 10607, Taiwan.
| | - An-Yu Chen
- Department of Materials Science and Engineering, National Taiwan University of Science and Technology, Taipei, 10607, Taiwan.
| | - Hung-Liang Liao
- Department of Materials Science and Engineering, National Taiwan University of Science and Technology, Taipei, 10607, Taiwan.
| | - Ming-Chien Yang
- Department of Materials Science and Engineering, National Taiwan University of Science and Technology, Taipei, 10607, Taiwan.
| | - Ting-Yu Liu
- Department of Materials Engineering, Ming Chi University of Technology, New Taipei City, 24301, Taiwan.
| | - Tzu-Yi Chan
- Department of Materials Engineering, Ming Chi University of Technology, New Taipei City, 24301, Taiwan.
| | - Hui-Ming Tsou
- Department of Materials Engineering, Ming Chi University of Technology, New Taipei City, 24301, Taiwan.
| | - Chih-Yu Kuo
- Institute of Polymer Science and Engineering, National Taiwan University, Taipei, 10617, Taiwan.
| | - Juen-Kai Wang
- Center for Condensed Matter Sciences, National Taiwan University, Taipei, 10617, Taiwan.
- Institute of Atomic and Molecular Sciences, Academia Sinica, Taipei, 10617, Taiwan.
| | - Yuh-Lin Wang
- Institute of Atomic and Molecular Sciences, Academia Sinica, Taipei, 10617, Taiwan.
- Department of Physics, National Taiwan University, Taipei, 10617, Taiwan.
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49
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González-Castillo JR, Rodriguez E, Jimenez-Villar E, Rodríguez D, Salomon-García I, de Sá GF, García-Fernández T, Almeida DB, Cesar CL, Johnes R, Ibarra JC. Synthesis of Ag@Silica Nanoparticles by Assisted Laser Ablation. Nanoscale Res Lett 2015; 10:399. [PMID: 26464175 PMCID: PMC4604163 DOI: 10.1186/s11671-015-1105-y] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/25/2015] [Accepted: 10/05/2015] [Indexed: 05/29/2023]
Abstract
This paper reports the synthesis of silver nanoparticles coated with porous silica (Ag@Silica NPs) using an assisted laser ablation method. This method is a chemical synthesis where one of the reagents (the reducer agent) is introduced in nanometer form by laser ablation of a solid target submerged in an aqueous solution. In a first step, a silicon wafer immersed in water solution was laser ablated for several minutes. Subsequently, an AgNO3 aliquot was added to the aqueous solution. The redox reaction between the silver ions and ablation products leads to a colloidal suspension of core-shell Ag@Silica NPs. The influence of the laser pulse energy, laser wavelength, ablation time, and Ag(+) concentration on the size and optical properties of the Ag@Silica NPs was investigated. Furthermore, the colloidal suspensions were studied by UV-VIS-NIR spectroscopy, X-Ray diffraction, and high-resolution transmission electron microscopy (HRTEM).
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Affiliation(s)
| | - E Rodriguez
- Instituto Politécnico Nacional, CICATA U. Altamira, Altamira, CP 89600, México
| | - E Jimenez-Villar
- Universidade Federal de Pernambuco, DQF, Recife, CP 50670-901, Brazil
| | - D Rodríguez
- Departamento de Investigación Aplicada, Driscoll's-México, Jalisco, CP 45050, México
| | - I Salomon-García
- Instituto Politécnico Nacional, CICATA U. Altamira, Altamira, CP 89600, México
| | - Gilberto F de Sá
- Universidade Federal de Pernambuco, DQF, Recife, CP 50670-901, Brazil
| | - T García-Fernández
- Universidad Autónoma de la Ciudad de México, México DF, CP 09790, México
| | - D B Almeida
- Universidade Estadual de Campinas, IFGW-DEQ, Campinas, CP 13083-859, Brazil
| | - C L Cesar
- Universidade Estadual de Campinas, IFGW-DEQ, Campinas, CP 13083-859, Brazil
| | - R Johnes
- Instituto Politécnico Nacional, CICATA U. Altamira, Altamira, CP 89600, México
| | - Juana C Ibarra
- Instituto Politécnico Nacional, CICATA U. Altamira, Altamira, CP 89600, México
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Zhang K, Zhao Z, Wu Z, Zhou Y. Synthesis and detection the oxidization of Co cores of Co@SiO2 core-shell nanoparticles by in situ XRD and EXAFS. Nanoscale Res Lett 2015; 10:37. [PMID: 25852334 PMCID: PMC4384979 DOI: 10.1186/s11671-015-0756-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/04/2014] [Accepted: 01/13/2015] [Indexed: 05/29/2023]
Abstract
In this paper, the Co@SiO2 core-shell nanoparticles were prepared by the sol-gel method. The oxidization of Co core nanoparticles was studied by the synchrotron radiation-based techniques including in situ X-ray diffraction (XRD) and X-ray absorption fine structure (XAFS) up to 800°C in air and N2 protection conditions, respectively. It was found that the oxidization of Co cores is undergoing three steps regardless of being in air or in N2 protection condition. In the first step ranging from room temperature to 200°C, the Co cores were dominated by Co(0) state as well as small amount of Co(2+) ions. When temperature was above 300°C, the interface between Co cores and SiO2 shells was gradually oxidized into Co(2+), and the CoO layer was observed. As the temperature increasing to 800°C, the Co cores were oxidized to Co3O4 or Co3O4/CoO. Nevertheless, the oxidization kinetics of Co cores is different for the Co@SiO2 in air and N2 gas conditions. Generally, the O2 in the air could get through the SiO2 shells easily onto the Co core surface and induce the oxidization of the Co cores due to the mesoporous nature of the SiO2 shells. However, in N2 gas condition, the O atoms can only be from the SiO2 shells, so the diffusion effect of O atoms in the interface between Co core and SiO2 shell plays a key role.
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Affiliation(s)
- Kunhao Zhang
- />Department of Life Science, Shanghai Synchrotron Radiation Facility, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai, 201204 China
| | - Ziyan Zhao
- />Department of Life Science, Shanghai Synchrotron Radiation Facility, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai, 201204 China
- />State Key Laboratory of Oil and Gas Reservoir and Exploitation, Southwest Petroleum University, Chengdu, 610500 China
- />School of Materials Science and Engineering, Southwest Petroleum University, Chengdu, 610500 China
| | - Zhonghua Wu
- />Beijing Synchrotron Radiation Facility, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, 100049 China
| | - Ying Zhou
- />State Key Laboratory of Oil and Gas Reservoir and Exploitation, Southwest Petroleum University, Chengdu, 610500 China
- />School of Materials Science and Engineering, Southwest Petroleum University, Chengdu, 610500 China
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