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Dou Y, Zhang Y, Lin C, Han R, Wang Y, Wu D, Zheng J, Lu C, Tang L, He Y. pH-responsive theranostic nanoplatform of ferrite and ceria co-engineered nanoparticles for anti-inflammatory. Front Bioeng Biotechnol 2022; 10:983677. [PMID: 36159657 PMCID: PMC9500451 DOI: 10.3389/fbioe.2022.983677] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Accepted: 08/17/2022] [Indexed: 11/19/2022] Open
Abstract
Multiple component integration to achieve both therapy and diagnosis in a single theranostic nanosystem has aroused great research interest in the medical investigator. This study aimed to construct a novel theranostic nanoplatform ferrite and ceria co-engineered mesoporous silica nanoparticles (Fe/Ce-MSN) antioxidant agent though a facile metal Fe/Ce-codoping approach in the MSN framework. The resulted Fe3+-incorporated ceria-based MSN nanoparticles possessing a higher Ce3+-to-Ce4+ ratio than those revealed by ceria-only nanoparticles. The as-prepared Fe/Ce-MSN nanoparticles exhibited an excellent efficiency in scavenging reactive oxygen species (ROS), which is attributed to improving the superoxide dismutase (SOD) mimetics activity by increasing Ce3+ content and maintaining a higher activity of catalase (CAT) mimetics via including ferrite ion in nanoparticles. The fast Fe/Ce-MSN biodegradation, which is sensitive to the mild acidic microenvironment of inflammation, can accelerate Fe/Ce ion release, and the freed Fe ions enhanced T2-weighted magnetic resonance imaging in the inflammation site. PEGylated Fe/Ce-MSN nanoparticles in vitro cell models significantly attenuated ROS-induced inflammation, oxidative stress, and apoptosis in macrophages by scavenging overproduced intracellular ROS. More importantly, Fe/Ce-MSN-PEG NPs exhibited significant anti-inflammatory effects by inhibiting lipopolysaccharide (LPS)-induced expression of tumor necrosis factor-α (TNF-α) and interleukin-1 beta (IL-1β) levels in vitro. Additionally, it can promote the macrophages polarization of pro-inflammatory M1 phenotype towards an anti-inflammatory M2 phenotype. Thus, the novel pH-responsive theranostic nanoplatform shows great promise for inflammation and oxidative stress-associated disease treatment.
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Affiliation(s)
- Yuanyao Dou
- Department of Respiratory Medicine, Daping Hospital, Army Medical University, Chongqing, China
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, China
| | - Yimin Zhang
- Department of Respiratory Medicine, Daping Hospital, Army Medical University, Chongqing, China
| | - Caiyu Lin
- Department of Respiratory Medicine, Daping Hospital, Army Medical University, Chongqing, China
| | - Rui Han
- Department of Respiratory Medicine, Daping Hospital, Army Medical University, Chongqing, China
| | - Yubo Wang
- Department of Respiratory Medicine, Daping Hospital, Army Medical University, Chongqing, China
| | - Di Wu
- Department of Respiratory Medicine, Daping Hospital, Army Medical University, Chongqing, China
| | - Jie Zheng
- Department of Respiratory Medicine, Daping Hospital, Army Medical University, Chongqing, China
| | - Conghua Lu
- Department of Respiratory Medicine, Daping Hospital, Army Medical University, Chongqing, China
| | - Liling Tang
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, China
- *Correspondence: Liling Tang, ; Yong He,
| | - Yong He
- Department of Respiratory Medicine, Daping Hospital, Army Medical University, Chongqing, China
- *Correspondence: Liling Tang, ; Yong He,
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Silva RN, Zhang P. Nanoparticle-Assisted Nuclear Relaxation-Based Detection of Oligonucleotides. METHODS IN MOLECULAR BIOLOGY (CLIFTON, N.J.) 2022; 2393:611-622. [PMID: 34837202 DOI: 10.1007/978-1-0716-1803-5_32] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
Nuclear relaxation-based techniques rely on the capability of paramagnetic center to affect the transverse relaxation time (T2) of the water protons. These changes are sensitive to the microenvironment of the paramagnetic center, which can be used to detect a variety of targets. In this work, we present an "on-off" oligonucleotide detection scheme in aqueous solutions, which uses gadolinium phthalocyanine (GdTcPc)-grafted silica nanoparticles as the paramagnetic centers. A probe oligonucleotide strand was conjugated to the GdTcPc to act as a recognition element. In the presence of the target oligonucleotide, which was complementary to the probe, an increase in the ΔT2 value, which was measured by subtracting the characteristic T2 value of the background solution from that of the sample using a benchtop relaxometer, was observed. The magnitude of this increase was proportional to the target oligonucleotide concentration. A linear range was obtained from 30 to 140 nM, with a detection limit of 15 nM. The developed nuclear relaxation-based detection scheme is shown to be a simple, fast, and selective method to detect oligonucleotide and could be useful in point-of-care diagnostic applications.
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Affiliation(s)
- Rebecca N Silva
- Department of Chemistry, University of Cincinnati, Cincinnati, OH, USA
| | - Peng Zhang
- Department of Chemistry, University of Cincinnati, Cincinnati, OH, USA.
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N Vijayan A, Refaei MA, Silva RN, Tsang P, Zhang P. Detection of Sortase A and Identification of Its Inhibitors by Paramagnetic Nanoparticle-Assisted Nuclear Relaxation. Anal Chem 2021; 93:15430-15437. [PMID: 34757710 DOI: 10.1021/acs.analchem.1c03271] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Sortase A is a virulence factor responsible for the attachment of surface proteins to Staphylococcus aureus and other Gram-positive bacteria. Inhibitors of this enzyme are potential anti-infective agents. Herein, a new highly selective magnetic relaxation-based method for screening potential sortase A inhibitors is described. A 13-amino acid-long peptide substrate of sortase A is conjugated to SiO2-EDTA-Gd NPs. In the presence of sortase A, the LPXTG motif on the peptide strand is cleaved resulting in a shortened peptide as well as a reduced water T2 value whose magnitude is dependent on the concentration of sortase A. The detection limit is determined to be 76 pM. In contrast, the presence of sortase A inhibitors causes the T2 to remain at a higher value. The proposed method is used to characterize inhibition of sortase A by curcumin and 4-(hydroxymercuri)benzoic acid with an IC50 value of 12.9 ± 1.6 μM and 130 ± 1.76 μM, respectively. Furthermore, this method was successfully applied to detect sortase A activity in bacterial suspensions. The feasibility to screen different inhibitors in Escherichia coli and S. aureus suspensions was demonstrated. This method is fast and potentially useful to rapidly screen possible inhibitors of sortase A in bacterial suspensions, thereby aiding in the development of antibacterial agents targeting Gram-positive bacteria.
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Affiliation(s)
- Anjaly N Vijayan
- Department of Chemistry, University of Cincinnati, Cincinnati, Ohio 45221-0172, United States
| | - Mary Anne Refaei
- Department of Chemistry, University of Cincinnati, Cincinnati, Ohio 45221-0172, United States
| | - Rebecca N Silva
- Department of Chemistry, University of Cincinnati, Cincinnati, Ohio 45221-0172, United States
| | - Pearl Tsang
- Department of Chemistry, University of Cincinnati, Cincinnati, Ohio 45221-0172, United States
| | - Peng Zhang
- Department of Chemistry, University of Cincinnati, Cincinnati, Ohio 45221-0172, United States
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Zhang Y, Zhu Y, Zeng Z, Zeng G, Xiao R, Wang Y, Hu Y, Tang L, Feng C. Sensors for the environmental pollutant detection: Are we already there? Coord Chem Rev 2021. [DOI: 10.1016/j.ccr.2020.213681] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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Silva RN, Vijayan AN, Westbrook E, Yu Z, Zhang P. Nanoparticle assisted nuclear relaxation-based oligonucleotide detection. Anal Chim Acta 2019; 1062:118-123. [PMID: 30947987 DOI: 10.1016/j.aca.2019.02.029] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2018] [Revised: 10/15/2018] [Accepted: 02/19/2019] [Indexed: 12/01/2022]
Abstract
We present a proof-of-concept "on-off" detection scheme, which uses gadolinium phthalocyanine (GdTcPc)-grafted silica nanoparticles as paramagnetic centers, capable of modifying the transverse relaxation time (T2) of water protons in solution. A DNA strand (as probe) was conjugated to the GdTcPc to act as a recognition element. In the presence of the target DNA, which was complementary to the probe, an increase in the T2 value was detected, with magnitude proportional to the target DNA concentration. The linear range was observed from 30 to 140 nM, with limit of detection of 15 nM. The developed nuclear relaxation-based detection scheme is shown to be a simple, fast and selective method to detect DNA and could be useful in point-of-care diagnostic applications.
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Affiliation(s)
- Rebecca N Silva
- Department of Chemistry, University of Cincinnati, OH, 45221, USA
| | - Anjaly N Vijayan
- Department of Chemistry, University of Cincinnati, OH, 45221, USA
| | - Emily Westbrook
- Department of Chemistry, University of Cincinnati, OH, 45221, USA
| | - Zhao Yu
- Department of Chemistry, University of Cincinnati, OH, 45221, USA
| | - Peng Zhang
- Department of Chemistry, University of Cincinnati, OH, 45221, USA.
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Gao F, Liu L, Cui G, Xu L, Wu X, Kuang H, Xu C. Regioselective plasmonic nano-assemblies for bimodal sub-femtomolar dopamine detection. NANOSCALE 2017; 9:223-229. [PMID: 27906395 DOI: 10.1039/c6nr08264e] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Reliable and ultrasensitive quantification of dopamine (DA) is essential in the precise diagnotherapy of neurological diseases. In this study, dual mode counterpropagating-responsive gold@silver nanoparticle-gold nanorod (Au@AgNP-AuNR) nano-assemblies were fabricated for the precise quantification of DA. The plasmonic Au@AgNP-AuNR assemblies possessed high surface-enhanced Raman scattering (SERS) activity and strong fluorescence quenching, due to the prominent electromagnetic enhancement between the hotspots of the assemblies. In the presence of a DA target, the Au@AgNP-AuNR assemblies dissociated, leading to an increase in fluorescence intensity and a decrease in SERS intensity. The limit of detection (LOD) of DA was 0.04 fM and 0.02 fM by the fluorescence method and SERS method, respectively. The linear range was 0.1-10 fM. These findings demonstrated that the simultaneous positive fluorescence response and negative SERS response ensured the accurate detection of DA, which opens up a new avenue for the early diagnotherapy of neurological diseases.
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Affiliation(s)
- Fengli Gao
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, People's Republic of China.
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Ozkaya-Ahmadov T, Wang P, Zhao H, Zhang P. Magnetic relaxation-based sensing of phosphate ion. Talanta 2017; 162:256-260. [DOI: 10.1016/j.talanta.2016.10.037] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2016] [Revised: 10/03/2016] [Accepted: 10/07/2016] [Indexed: 11/16/2022]
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Chen A, Xu L, Zhang X, Yang Z, Yang S. Improving Surface Adsorption via Shape Control of Hematite α-Fe 2O 3 Nanoparticles for Sensitive Dopamine Sensors. ACS APPLIED MATERIALS & INTERFACES 2016; 8:33765-33774. [PMID: 27960401 DOI: 10.1021/acsami.6b11088] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
α-Fe2O3 nanoparticles (NPs) with morphologies varying from shuttle to drum were synthesized through an anion-assisted and surfactant-free hydrothermal method by simply varying the ratios of ethanol and water in solvent. Control experiments show that the structural evolution can be attributed to a small-molecular-induced anisotropic growth mechanism in which the growth rate of α-Fe2O3 NPs along the a-, b-, or c-axis was well-controlled. The detailed structural analysis through the high-resolution transmission electron microscope (HRTEM) indicated that shuttle-like Fe2O3 NP surface was covered by high-density atomic steps, which endowed them with the enhanced adsorption and sensor ability toward dopamine (DA). The XPS characterizations indicated that the percentages of the OC component follow the order of shuttle-like Fe2O3 (S-Fe2O3 for short) > pseudoshuttle-like Fe2O3 (Ps-Fe2O3 for short) > polyhedron-like Fe2O3 (Ph-Fe2O3 for short) > drum-like Fe2O3 (D-Fe2O3 for short). Benefits from these structural advantages, the S-Fe2O3 NPs-Nafion composite electrode exhibited remarkable electrochemical detection ability with a wide liner range from 0.2 μM to 0.107 mM and a low detection limit of 31.25 nM toward DA in the presence of interferents.
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Affiliation(s)
- Anran Chen
- School of Science, MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University , Xi'an, Shaanxi 710049, People's Republic of China
| | - Liang Xu
- School of Science, MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University , Xi'an, Shaanxi 710049, People's Republic of China
| | - Xiaojing Zhang
- School of Science, MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University , Xi'an, Shaanxi 710049, People's Republic of China
| | - Zhimao Yang
- School of Science, MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University , Xi'an, Shaanxi 710049, People's Republic of China
- Collaborative Innovation Center of Suzhou Nano Science and Technology, Suzhou Academy of Xi'an Jiaotong University , Suzhou, Jiangsu 215000, People's Republic of China
| | - Shengchun Yang
- School of Science, MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University , Xi'an, Shaanxi 710049, People's Republic of China
- Collaborative Innovation Center of Suzhou Nano Science and Technology, Suzhou Academy of Xi'an Jiaotong University , Suzhou, Jiangsu 215000, People's Republic of China
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Schrittwieser S, Pelaz B, Parak WJ, Lentijo-Mozo S, Soulantica K, Dieckhoff J, Ludwig F, Guenther A, Tschöpe A, Schotter J. Homogeneous Biosensing Based on Magnetic Particle Labels. SENSORS 2016; 16:s16060828. [PMID: 27275824 PMCID: PMC4934254 DOI: 10.3390/s16060828] [Citation(s) in RCA: 66] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/22/2016] [Revised: 05/30/2016] [Accepted: 06/01/2016] [Indexed: 12/17/2022]
Abstract
The growing availability of biomarker panels for molecular diagnostics is leading to an increasing need for fast and sensitive biosensing technologies that are applicable to point-of-care testing. In that regard, homogeneous measurement principles are especially relevant as they usually do not require extensive sample preparation procedures, thus reducing the total analysis time and maximizing ease-of-use. In this review, we focus on homogeneous biosensors for the in vitro detection of biomarkers. Within this broad range of biosensors, we concentrate on methods that apply magnetic particle labels. The advantage of such methods lies in the added possibility to manipulate the particle labels by applied magnetic fields, which can be exploited, for example, to decrease incubation times or to enhance the signal-to-noise-ratio of the measurement signal by applying frequency-selective detection. In our review, we discriminate the corresponding methods based on the nature of the acquired measurement signal, which can either be based on magnetic or optical detection. The underlying measurement principles of the different techniques are discussed, and biosensing examples for all techniques are reported, thereby demonstrating the broad applicability of homogeneous in vitro biosensing based on magnetic particle label actuation.
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Affiliation(s)
- Stefan Schrittwieser
- Molecular Diagnostics, AIT Austrian Institute of Technology, Vienna1220, Austria.
| | - Beatriz Pelaz
- Fachbereich Physik, Philipps-Universität Marburg, Marburg 35037, Germany.
| | - Wolfgang J Parak
- Fachbereich Physik, Philipps-Universität Marburg, Marburg 35037, Germany.
| | - Sergio Lentijo-Mozo
- Laboratoire de Physique et Chimie des Nano-objets (LPCNO), Université de Toulouse, INSA, UPS, CNRS, Toulouse 31077, France.
| | - Katerina Soulantica
- Laboratoire de Physique et Chimie des Nano-objets (LPCNO), Université de Toulouse, INSA, UPS, CNRS, Toulouse 31077, France.
| | - Jan Dieckhoff
- Institute of Electrical Measurement and Fundamental Electrical Engineering, TU Braunschweig, Braunschweig 38106, Germany.
| | - Frank Ludwig
- Institute of Electrical Measurement and Fundamental Electrical Engineering, TU Braunschweig, Braunschweig 38106, Germany.
| | - Annegret Guenther
- Experimentalphysik, Universität des Saarlandes, Saarbrücken 66123, Germany.
| | - Andreas Tschöpe
- Experimentalphysik, Universität des Saarlandes, Saarbrücken 66123, Germany.
| | - Joerg Schotter
- Molecular Diagnostics, AIT Austrian Institute of Technology, Vienna1220, Austria.
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