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Ahmed T. Lipid nanoparticle mediated small interfering RNA delivery as a potential therapy for Alzheimer's disease. Eur J Neurosci 2024; 59:2915-2954. [PMID: 38622050 DOI: 10.1111/ejn.16336] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2023] [Revised: 02/21/2024] [Accepted: 03/14/2024] [Indexed: 04/17/2024]
Abstract
Alzheimer's disease (AD) is a neurodegenerative condition that exhibits a gradual decline in cognitive function and is prevalent among a significant number of individuals globally. The use of small interfering RNA (siRNA) molecules in RNA interference (RNAi) presents a promising therapeutic strategy for AD. Lipid nanoparticles (LNPs) have been developed as a delivery vehicle for siRNA, which can selectively suppress target genes, by enhancing cellular uptake and safeguarding siRNA from degradation. Numerous research studies have exhibited the effectiveness of LNP-mediated siRNA delivery in reducing amyloid beta (Aβ) levels and enhancing cognitive function in animal models of AD. The feasibility of employing LNP-mediated siRNA delivery as a therapeutic approach for AD is emphasized by the encouraging outcomes reported in clinical studies for other medical conditions. The use of LNP-mediated siRNA delivery has emerged as a promising strategy to slow down or even reverse the progression of AD by targeting the synthesis of tau phosphorylation and other genes linked to the condition. Improvement of the delivery mechanism and determination of the most suitable siRNA targets are crucial for the efficacious management of AD. This review focuses on the delivery of siRNA through LNPs as a promising therapeutic strategy for AD, based on the available literature.
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Affiliation(s)
- Tanvir Ahmed
- Department of Pharmaceutical Sciences, North South University, Dhaka, Bangladesh
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2
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Aydin N, Turkez H, Tozlu OO, Arslan ME, Yavuz M, Sonmez E, Ozpolat OF, Cacciatore I, Di Stefano A, Mardinoglu A. Ameliorative Effects by Hexagonal Boron Nitride Nanoparticles against Beta Amyloid Induced Neurotoxicity. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:nano12152690. [PMID: 35957121 PMCID: PMC9370266 DOI: 10.3390/nano12152690] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Revised: 07/30/2022] [Accepted: 08/02/2022] [Indexed: 05/28/2023]
Abstract
Alzheimer’s disease (AD) is considered as the most common neurodegenerative disease. Extracellular amyloid beta (Aβ) deposition is a hallmark of AD. The options based on degradation and clearance of Aβ are preferred as promising therapeutic strategies for AD. Interestingly, recent findings indicate that boron nanoparticles not only act as a carrier but also play key roles in mediating biological effects. In the present study, the aim was to investigate the effects of different concentrations (0−500 mg/L) of hexagonal boron nitride nanoparticles (hBN-NPs) against neurotoxicity by beta amyloid (Aβ1-42) in differentiated human SH-SY5Y neuroblastoma cell cultures for the first time. The synthesized hBN-NPs were characterized by X-ray diffraction (XRD) measurements, scanning electron microscopy (SEM) and transmission electron microscopy (TEM). Aβ1-42-induced neurotoxicity and therapeutic potential by hBN-NPs were assessed on differentiated SH-SY5Y cells using MTT and LDH release assays. Levels of total antioxidant capacity (TAC) and total oxidant status (TOS), expression levels of genes associated with AD and cellular morphologies were examined. The exposure to Aβ1-42 significantly decreased the rates of viable cells which was accompanied by elevated TOS level. Aβ1-42 induced both apoptotic and necrotic cell death. Aβ exposure led to significant increases in expression levels of APOE, BACE 1, EGFR, NCTSN and TNF-α genes and significant decreases in expression levels of ADAM 10, APH1A, BDNF, PSEN1 and PSENEN genes (p < 0.05). All the Aβ1-42-induced neurotoxic insults were inhibited by the applications with hBN-NPs. hBN-NPs also suppressed the remarkable elevation in the signal for Aβ following exposure to Aβ1-42 for 48 h. Our results indicated that hBN-NPs could significantly prevent the neurotoxic damages by Aβ. Thus, hBN-NPs could be a novel and promising anti-AD agent for effective drug development, bio-nano imaging or drug delivery strategies.
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Affiliation(s)
- Nursah Aydin
- Department of Molecular Biology and Genetics, Erzurum Technical University, Erzurum 25050, Turkey
| | - Hasan Turkez
- Department of Medical Biology, Faculty of Medicine, Atatürk University, Erzurum 25240, Turkey
- East Anatolia High Technology Application and Research Center (DAYTAM), Ataturk University, Erzurum 25240, Turkey
| | - Ozlem Ozdemir Tozlu
- Department of Molecular Biology and Genetics, Erzurum Technical University, Erzurum 25050, Turkey
| | - Mehmet Enes Arslan
- Department of Molecular Biology and Genetics, Erzurum Technical University, Erzurum 25050, Turkey
| | - Mehmet Yavuz
- REEM Neuropsychiatry Clinics, İstanbul 34245, Turkey
| | - Erdal Sonmez
- Department of Nanoscience and Nanoengineering, Graduate School of Natural and Applied Sciences, Ataturk University, Erzurum 25240, Turkey
- Department of Physics, Kazım Karabekir Education Faculty, Atatürk University, Erzurum 25240, Turkey
| | - Ozgur Fırat Ozpolat
- Computer Sciences Research and Application Center, Atatürk University, Erzurum 25240, Turkey
| | - Ivana Cacciatore
- Department of Pharmacy, University “G. d’Annunzio” of Chieti-Pescara, Via dei Vestini, 31, 66100 Chieti Scalo, CH, Italy
| | - Antonio Di Stefano
- Department of Pharmacy, University “G. d’Annunzio” of Chieti-Pescara, Via dei Vestini, 31, 66100 Chieti Scalo, CH, Italy
| | - Adil Mardinoglu
- Science for Life Laboratory, KTH-Royal Institute of Technology, SE-17121 Stockholm, Sweden
- Centre for Host-Microbiome Interactions, Faculty of Dentistry, Oral & Craniofacial Sciences, King’s College London, London SE1 9RT, UK
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3
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Peng F, Jeong S, Ho A, Evans CL. Recent progress in plasmonic nanoparticle-based biomarker detection and cytometry for the study of central nervous system disorders. Cytometry A 2021; 99:1067-1078. [PMID: 34328262 DOI: 10.1002/cyto.a.24489] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2021] [Revised: 05/28/2021] [Accepted: 07/19/2021] [Indexed: 11/07/2022]
Abstract
Neurological disorders affect hundreds of millions of people around the world, are often life-threatening, untreatable, and can result in debilitating symptoms. The high prevalence of these disorders, which feature biochemical or structural abnormalities in neuronal systems, has spurned innovations in both rapid and early detection to assist in the selection of appropriate treatment strategies to improve the patients' quality of life. Plasmonic nanoparticles (PNPs), a versatile and promising class of nanomaterials, are widely utilized in numerous imaging techniques, drug delivery systems, and biomarker detection methods. Recently, PNP-based nanoprobes have attracted considerable attention for the early diagnosis of neurological disorders. Gold nanoparticles (AuNPs), with high local surface plasmon resonance (LSPR) signals, have been particularly well exploited as probes for dynamic biomarker detection, with quantification sensitivity demonstrated down to the single-molecule level. In this review, we will discuss the possibilities of PNPs in the methodological development for rapid neurological disease identification. In addition, we will also describe a new digital cytometry method that combines dark-field imaging and machine learning for precise biomarker enumeration on single cells. The aim of this review is to attract researchers working on the future development of new plasmonic nanoprobe-based strategies for the diagnosis of neurological disorders.
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Affiliation(s)
- Fei Peng
- Wellman Center for Photomedicine, Massachusetts General Hospital, Harvard Medical School, Charlestown, Massachusetts, USA
| | - Sinyoung Jeong
- Wellman Center for Photomedicine, Massachusetts General Hospital, Harvard Medical School, Charlestown, Massachusetts, USA
| | - Alexander Ho
- Wellman Center for Photomedicine, Massachusetts General Hospital, Harvard Medical School, Charlestown, Massachusetts, USA
| | - Conor L Evans
- Wellman Center for Photomedicine, Massachusetts General Hospital, Harvard Medical School, Charlestown, Massachusetts, USA
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4
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Luo Z, Xu H, Liu L, Ohulchanskyy TY, Qu J. Optical Imaging of Beta-Amyloid Plaques in Alzheimer's Disease. BIOSENSORS 2021; 11:255. [PMID: 34436057 PMCID: PMC8392287 DOI: 10.3390/bios11080255] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/23/2021] [Revised: 07/21/2021] [Accepted: 07/26/2021] [Indexed: 02/02/2023]
Abstract
Alzheimer's disease (AD) is a multifactorial, irreversible, and incurable neurodegenerative disease. The main pathological feature of AD is the deposition of misfolded β-amyloid protein (Aβ) plaques in the brain. The abnormal accumulation of Aβ plaques leads to the loss of some neuron functions, further causing the neuron entanglement and the corresponding functional damage, which has a great impact on memory and cognitive functions. Hence, studying the accumulation mechanism of Aβ in the brain and its effect on other tissues is of great significance for the early diagnosis of AD. The current clinical studies of Aβ accumulation mainly rely on medical imaging techniques, which have some deficiencies in sensitivity and specificity. Optical imaging has recently become a research hotspot in the medical field and clinical applications, manifesting noninvasiveness, high sensitivity, absence of ionizing radiation, high contrast, and spatial resolution. Moreover, it is now emerging as a promising tool for the diagnosis and study of Aβ buildup. This review focuses on the application of the optical imaging technique for the determination of Aβ plaques in AD research. In addition, recent advances and key operational applications are discussed.
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Affiliation(s)
| | | | | | | | - Junle Qu
- Center for Biomedical Photonics, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China; (Z.L.); (H.X.); (L.L.); (T.Y.O.)
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5
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Cytotoxicity studies of protein-stabilized fluorescent gold nanoclusters on human lymphocytes. Colloids Surf B Biointerfaces 2021; 200:111593. [DOI: 10.1016/j.colsurfb.2021.111593] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2020] [Revised: 12/30/2020] [Accepted: 01/22/2021] [Indexed: 02/08/2023]
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6
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Pelin JNBD, Edwards-Gayle CJC, Aguilar AM, Kaur A, Hamley IW, Alves WA. Polymorphism of asymmetric catalysts based on amphiphilic lipopeptides in solution. SOFT MATTER 2020; 16:4615-4624. [PMID: 32368775 DOI: 10.1039/d0sm00245c] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The self-assembly of model [P]RWG lipopeptides (P: l-proline, R: l-arginine, W: l-tryptophan, G: l-glycine), containing one or two aliphatic octadecyl (C18) chains in water and cyclohexanone/water solutions was examined. The self-assembly of mixtures of these RWG and PRWG lipopeptides was also investigated. These materials presented a similar critical aggregation concentration of ∼4.0 × 10-4 wt% and were characterized by unordered secondary structures with some β-sheet content. TEM and cryo-TEM revealed the presence of mainly nanotape structures with micelles observed for systems rich in PRWG(C18H37). Analysis of detailed SAXS form factor measurements revealed the presence of bilayers 3-4 nm thick while the PRWG(C18H37) micelles have a core radius of approximately 3 nm, and a shell thickness of 2 nm. For the cyclohexanone/water systems polymorphs containing cluster aggregates (with radius of 0.25 nm to 0.50 nm) and some elongated structures (with radius of 5.7 nm to 26.1 nm) were seen. Longer structures were formed with the increase of the proline-containing lipopeptide content. The catalytic activity of these peptides was assessed using a model nitro-aldol reaction. The concentration of water in the reaction system influenced the conversion, higher content promoted better efficiency for the water systems, but the opposite was observed for the cyclohexanone/water samples.
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Affiliation(s)
- Juliane N B D Pelin
- Centro de Ciências Naturais e Humanas, Universidade Federal do ABC, 09210-580, Santo André, Brazil.
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7
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Pelin JBD, Gerbelli BB, Edwards-Gayle CJC, Aguilar AM, Castelletto V, Hamley IW, Alves WA. Amyloid Peptide Mixtures: Self-Assembly, Hydrogelation, Nematic Ordering, and Catalysts in Aldol Reactions. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2020; 36:2767-2774. [PMID: 32131599 PMCID: PMC7146849 DOI: 10.1021/acs.langmuir.0c00198] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/22/2020] [Revised: 03/04/2020] [Indexed: 05/23/2023]
Abstract
Morphological, spectroscopic, and scattering studies of the self-assembly and aggregation of mixtures of [RF]4 and P[RF]4 peptides (where R = arginine; F = phenylalanine; P = proline), in solution and as hydrogels, were performed to obtain information about polymorphism. CD data confirmed a β-sheet secondary structure in aqueous solution, and TEM images revealed nanofibers with diameters of ∼10 nm and micrometer lengths. SAXS curves were fitted using a mass fractal-component and a long cylinder shell form factor for the liquid samples, and only a long cylinder shell form factor for the gels. Increasing the P[RF]4 content in the systems leads to a reduction in cylinder radius and core scattering density, suggesting an increase in packing of the peptide molecules; however, the opposite effect is observed for the gels, where the scattering density is higher in the shell for the systems containing higher P[RF]4 content. These compounds show potential as catalysts in the asymmetric aldol reactions, with cyclohexanone and p-nitrobenzaldehyde in aqueous media. A moderate conversion (36.9%) and a good stereoselectivity (69:31) were observed for the system containing only [RF]4. With increasing P[RF]4 content, a considerable decrease of the conversion was observed, suggesting differences in the self-assembly and packing factor. Rheological measurements were performed to determine the shear moduli for the soft gels.
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Affiliation(s)
- Juliane
N. B. D. Pelin
- Centro
de Ciências Naturais e Humanas, Universidade
Federal do ABC, 09210-580, Santo André, Brazil
- Department
of Chemistry, University of Reading, Reading RG6 6AD, United Kingdom
| | - Barbara B. Gerbelli
- Centro
de Ciências Naturais e Humanas, Universidade
Federal do ABC, 09210-580, Santo André, Brazil
| | | | - Andrea M. Aguilar
- Instituto
de Ciências Ambientais, Químicas e Farmacêuticas, Universidade Federal de São Paulo, Diadema, 09972-270, Brazil
| | - Valeria Castelletto
- Department
of Chemistry, University of Reading, Reading RG6 6AD, United Kingdom
| | - Ian W. Hamley
- Department
of Chemistry, University of Reading, Reading RG6 6AD, United Kingdom
| | - Wendel A. Alves
- Centro
de Ciências Naturais e Humanas, Universidade
Federal do ABC, 09210-580, Santo André, Brazil
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8
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Hettiarachchi SD, Zhou Y, Seven E, Lakshmana MK, Kaushik AK, Chand HS, Leblanc RM. Nanoparticle-mediated approaches for Alzheimer's disease pathogenesis, diagnosis, and therapeutics. J Control Release 2019; 314:125-140. [PMID: 31647979 DOI: 10.1016/j.jconrel.2019.10.034] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2019] [Revised: 10/16/2019] [Accepted: 10/18/2019] [Indexed: 12/18/2022]
Abstract
Alzheimer's disease (AD) is an irreversible and progressive neurodegenerative disorder manifested by memory loss and cognitive impairment. Deposition of the amyloid β plaques has been identified as the most common AD pathology; however, the excessive accumulation of phosphorylated or total tau proteins, reactive oxygen species, and higher acetylcholinesterase activity are also strongly associated with Alzheimer's dementia. Several therapeutic approaches targeting these pathogenic mechanisms have failed in clinical or preclinical trials, partly due to the limited bioavailability, poor cell, and blood-brain barrier penetration, and low drug half-life of current regimens. The nanoparticles (NPs)-mediated drug delivery systems improve drug solubility and bioavailability, thus renders as superior alternatives. Moreover, NPs-mediated approaches facilitate multiple drug loading and targeted drug delivery, thereby increasing drug efficacy. However, certain NPs can cause acute toxicity damaging cellular and tissue architecture, therefore, NP material should be carefully selected. In this review, we summarize the recent NPs-mediated studies that exploit various pathologic mechanisms of AD by labeling, identifying, and treating the affected brain pathologies. The disadvantages of the select NP-based deliveries and the future aspects will also be discussed.
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Affiliation(s)
- Sajini D Hettiarachchi
- Department of Chemistry, University of Miami, 1301 Memorial Drive, Coral Gables, FL, 33146, USA
| | - Yiqun Zhou
- Department of Chemistry, University of Miami, 1301 Memorial Drive, Coral Gables, FL, 33146, USA
| | - Elif Seven
- Department of Chemistry, University of Miami, 1301 Memorial Drive, Coral Gables, FL, 33146, USA
| | - Madepalli K Lakshmana
- Department of Immunology and Nano-Medicine, Herbert Wertheim College of Medicine, Florida International University, 11200 SW 8th Street, Miami, FL 33199, USA
| | - Ajeet K Kaushik
- Department of Natural Sciences, Division of Sciences, Arts & Mathematics, Florida Polytechnic University, Lakeland, FL 33805-8531, USA
| | - Hitendra S Chand
- Department of Immunology and Nano-Medicine, Herbert Wertheim College of Medicine, Florida International University, 11200 SW 8th Street, Miami, FL 33199, USA
| | - Roger M Leblanc
- Department of Chemistry, University of Miami, 1301 Memorial Drive, Coral Gables, FL, 33146, USA
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9
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Ngo ST, Mai BK, Derreumaux P, Vu VV. Adequate prediction for inhibitor affinity of Aβ 40 protofibril using the linear interaction energy method. RSC Adv 2019; 9:12455-12461. [PMID: 35515829 PMCID: PMC9063661 DOI: 10.1039/c9ra01177c] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2019] [Accepted: 04/11/2019] [Indexed: 11/21/2022] Open
Abstract
The search for efficient inhibitors targeting Aβ oligomers and fibrils is an important issue in Alzheimer's disease treatment. As a consequence, an accurate and computationally cheap approach to estimate the binding affinity for many ligands interacting with Aβ peptides is very important. Here, the calculated binding free energies of 30 ligands interacting with 12Aβ11-40 peptides using the linear interaction energy (LIE) approach are found to be in good correlation with experimental data (R = 0.79). The binding affinities of these complexes are also calculated by using free energy perturbation (FEP) and molecular mechanic/Poisson-Boltzmann surface area (MM/PBSA) methods. The time-consuming FEP method provides results with similar correlation (R = 0.72), whereas MM/PBSA calculations show very low correlation with experimental data (R = 0.27). In all complexes, van der Waals interactions contribute much more than electrostatic interactions. The LIE model, which is much less time-consuming than both the FEP and MM/PBSA methods, opens the door to accurate and rapid affinity prediction of ligands with Aβ peptides and the design of new ligands.
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Affiliation(s)
- Son Tung Ngo
- Laboratory of Theoretical and Computational Biophysics, Ton Duc Thang University Ho Chi Minh City Vietnam
- Faculty of Applied Sciences, Ton Duc Thang University Ho Chi Minh City Vietnam
| | - Binh Khanh Mai
- Institute for Computational Science and Technology (ICST), Quang Trung Software City Ho Chi Minh City Vietnam
| | - Philippe Derreumaux
- Laboratoire de Biochimie Théorique, UPR 9080 CNRS, IBPC, Université Paris Diderot 13 rue Pierre et Marie Curie 75005 Paris France
- Laboratory of Theoretical Chemistry, Ton Duc Thang University Ho Chi Minh City Vietnam
- Faculty of Pharmacy, Ton Duc Thang University Ho Chi Minh City Vietnam
| | - Van V Vu
- NTT Hi-Tech Institute, Nguyen Tat Thanh University Ho Chi Minh City Vietnam
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10
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van der Munnik NP, Moss MA, Uline MJ. Obstacles to translating the promise of nanoparticles into viable amyloid disease therapeutics. Phys Biol 2019; 16:021002. [PMID: 30620933 DOI: 10.1088/1478-3975/aafc66] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Nanoparticles (NPs) constitute a powerful therapeutic platform with exciting prospects as potential inhibitors of amyloid-[Formula: see text] (Aβ) aggregation, a process associated with Alzheimer's disease (AD). Researchers have synthesized and tested a large collection of NPs with disparate sizes, shapes, electrostatic properties and surface ligands that evoke a variety of responses on Aβ aggregation. In spite of a decade of research on the NP-Aβ system and many promising experimental results, NPs have failed to progress to any level of clinical trials for AD. A theoretical framework with which to approach this physical system is presented featuring two simple metrics, (1) the extent to which NPs adsorb Aβ, and (2) the degree to which interaction with a NP alters Aβ conformation relative to aggregation propensity. Most of our current understanding of these two interactions has been gained through experimentation, and many of these studies are reviewed herein. We also provide a potential roadmap for studies that we believe could produce viable NPs as an effective AD therapeutic platform.
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Affiliation(s)
- N P van der Munnik
- Biomedical Engineering Program, University of South Carolina, Columbia, SC 29208, United States of America. Chemical Engineering Department, University of South Carolina, Columbia, SC 29208, United States of America
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11
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Pelin JNBD, Gatto E, Venanzi M, Cavalieri F, Oliveira CLP, Martinho H, Silva ER, Aguilar AM, Souza JS, Alves WA. Hybrid Conjugates Formed between Gold Nanoparticles and an Amyloidogenic Diphenylalanine-Cysteine Peptide. ChemistrySelect 2018. [DOI: 10.1002/slct.201801345] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Juliane N. B. D. Pelin
- Centro de Ciências Naturais e Humanas; Universidade Federal do ABC; 09210-580 Santo André Brazil
| | - Emanuela Gatto
- Department of Chemical Science and Technologies; University of Rome Tor Vergata; Italy
| | - Mariano Venanzi
- Department of Chemical Science and Technologies; University of Rome Tor Vergata; Italy
| | - Francesca Cavalieri
- Department of Chemical and Biomolecular Engineering; The University of Melbourne; Australia
- Department of Chemical Science and Technologies; University of Rome Tor Vergata; Italy
| | | | - Herculano Martinho
- Centro de Ciências Naturais e Humanas; Universidade Federal do ABC; 09210-580 Santo André Brazil
| | - Emerson R. Silva
- Departamento de Biofísica; Universidade Federal de São Paulo; 04023-062 São Paulo Brazil
| | - Andrea M. Aguilar
- Instituto de Ciências Ambientais, Químicas e Farmacêuticas; Universidade Federal de São Paulo; Diadema 09972-270 Brazil
| | - Juliana S. Souza
- Centro de Ciências Naturais e Humanas; Universidade Federal do ABC; 09210-580 Santo André Brazil
| | - Wendel A. Alves
- Centro de Ciências Naturais e Humanas; Universidade Federal do ABC; 09210-580 Santo André Brazil
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12
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Ngo ST, Hung HM, Hong ND, Tung NT. The influences of E22Q mutant on solvated 3Aβ 11-40 peptide: A REMD study. J Mol Graph Model 2018; 83:122-128. [PMID: 29902674 DOI: 10.1016/j.jmgm.2018.06.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2018] [Revised: 05/03/2018] [Accepted: 06/01/2018] [Indexed: 10/14/2022]
Abstract
The residue E22 plays a critical role in the aggregation process of Amyloid beta (Aβ) peptides. The effect of E22Q mutant on the shapes of the solvated Aβ11-40 trimer is clarified using a replica exchange molecular dynamics (REMD) simulation employing ∼20.6 μs of MD simulations with 48 disparate replicas. The increase of intramolecular polar contacts and salt bridge between the residue D23 to residues (24-29) was observed. The residual secondary structure of the mutated trimer is shifted in a similar way to the picture observed in previous investigations of F19W mutant. The free energy surface (FES) of the mutated E22Q system has a fewer number of minima in comparison with the wild-type trimer. The optimized shapes of the mutated E22Q form a significant increase in beta structure (47%) and serious decrease in coil content (46%) compared with the wild-type (of 36 and 56%, respectively). The binding affinity of constituting chains to the rest is of -43.7 ± 6.5 kcal/mol, implying that the representative structure of E22Q is more stable than the wild-type one. Furthermore, the E22Q mutant increases the size of stable structures due to larger collision cross section (CCS) and solvent accessible area (SASA). The observed results may enhance the Aβ inhibition throughout the contribution to the knowledge of the Aβ oligomerization/aggregation.
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Affiliation(s)
- Son Tung Ngo
- Computational Chemistry Research Group, Ton Duc Thang University, Ho Chi Minh City, Vietnam; Faculty of Applied Sciences, Ton Duc Thang University, Ho Chi Minh City, Vietnam.
| | - Huynh Minh Hung
- Department of Chemistry, KU Leuven, Celestijnenlaan 200F, B-3001, Leuven, Belgium
| | - Nam Dao Hong
- University of Medicine and Pharmacy, Ho Chi Minh City, Vietnam
| | - Nguyen Thanh Tung
- Institute of Materials Science and Graduate University of Science and Technology, Vietnam Academy of Science and Technology, Hanoi, Vietnam.
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13
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Zheng X, Xu Z, Li H, Fu H. A sensitive probe for amyloid fibril detection with strong fluorescence and early response. RSC Adv 2018; 8:15870-15875. [PMID: 35542196 PMCID: PMC9080103 DOI: 10.1039/c8ra00751a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2018] [Accepted: 03/29/2018] [Indexed: 02/05/2023] Open
Abstract
We synthesized a new probe, 4-[2-(2-naphthyl)-(E)-ethenyl]-benzyl(triphenyl)phosphonium bromide (NEB), to detect the formation of amyloid fibrils of bovine insulin. The fluorescence intensity of NEB in the presence of insulin fibrils was 30 times higher than that before fibrillation, with the fluorescence quantum yield increased from 2.5% to 78%. In comparison with the commercially available probe, thioflavin T (ThT), NEB exhibits a 10 times stronger fluorescence and a shorter identification lag phase for detecting insulin fibrillation, indicating a higher sensitivity in detection of insulin oligomers and fibrils. We synthesized a new probe, 4-[2-(2-naphthyl)-(E)-ethenyl]-benzyl(triphenyl)phosphonium bromide (NEB), to detect the formation of amyloid fibrils of bovine insulin.![]()
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Affiliation(s)
- Xiaolin Zheng
- Beijing Key Laboratory for Optical Materials and Photonic Devices
- Department of Chemistry
- Capital Normal University
- Beijing 100048
- People's Republic of China
| | - Zhenzhen Xu
- Beijing Key Laboratory for Optical Materials and Photonic Devices
- Department of Chemistry
- Capital Normal University
- Beijing 100048
- People's Republic of China
| | - Haiyang Li
- Beijing Key Laboratory for Optical Materials and Photonic Devices
- Department of Chemistry
- Capital Normal University
- Beijing 100048
- People's Republic of China
| | - Hongbing Fu
- Beijing Key Laboratory for Optical Materials and Photonic Devices
- Department of Chemistry
- Capital Normal University
- Beijing 100048
- People's Republic of China
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14
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Li M, Zhao A, Ren J, Qu X. N-Methyl Mesoporphyrin IX as an Effective Probe for Monitoring Alzheimer's Disease β-Amyloid Aggregation in Living Cells. ACS Chem Neurosci 2017; 8:1299-1304. [PMID: 28281745 DOI: 10.1021/acschemneuro.6b00436] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Formation of amyloid fibrils by amyloid-β peptide (Aβ) is an important step in Alzheimer's disease (AD) progression. Screening and designing of new molecules which can monitor the amyloidosis process especially in cells are diagnostically and therapeutically important. Utilizing Thioflavin T (ThT), the commonly used amyloid dye, is the most standardized way to monitor amyloid. However, with the green fluorescence emission and small Stokes shift, the fluorescence of ThT can overlap with that arising from other intrinsic fluorescent components in the cells, making it not suitable for detection of protein aggregates in vivo. Therefore, it is urgent for developing amyloid probes with large Stokes shifts and red-shifted fluorescence emission to detect Aβ aggregates in cells. In this report, we found that N-methyl mesoporphyrin IX (NMM), a widely used G-quadruplex DNA specific fluorescent binder, can be an efficient probe for monitoring Aβ fibrillation in living cells. NMM is nonfluorescent in aqueous solution or monomeric Aβ environments. However, through stacking with the Aβ assemblies, NMM emits strong fluorescence. Furthermore, the large Stokes shift and stable photoluminescence make it an ideal probe for detecting Aβ aggregates in highly fluorescent environments and cell culture. Our results provide a new sight to design and screen new reagents for monitoring the diseases associated with protein conformational disorders.
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Affiliation(s)
- Meng Li
- Laboratory of Chemical
Biology and State Key Laboratory of Rare Earth Resource Utilization,
Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin 130022, China
- University of Chinese Academy of Sciences, Beijing 100039, China
| | - Andong Zhao
- Laboratory of Chemical
Biology and State Key Laboratory of Rare Earth Resource Utilization,
Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin 130022, China
- University of Chinese Academy of Sciences, Beijing 100039, China
| | - Jinsong Ren
- Laboratory of Chemical
Biology and State Key Laboratory of Rare Earth Resource Utilization,
Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin 130022, China
| | - Xiaogang Qu
- Laboratory of Chemical
Biology and State Key Laboratory of Rare Earth Resource Utilization,
Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin 130022, China
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15
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Ngo ST, Luu XC, Nguyen MT, Le CN, Vu VV. In silico studies of solvated F19W amyloid β (11–40) trimer. RSC Adv 2017. [DOI: 10.1039/c7ra07187f] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
REMD studies shows that F19W mutation does not change in the overall structure of Aβ11–40 trimer significantly but increases it flexibility, consistent with the observed formation of the same fibril structures at slower rates.
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Affiliation(s)
- Son Tung Ngo
- Computational Chemistry Research Group
- Ton Duc Thang University
- Ho Chi Minh City
- Vietnam
- Faculty of Applied Sciences
| | - Xuan-Cuong Luu
- NTT Hi-Tech Institute
- Nguyen Tat Thanh University
- Ho Chi Minh City
- Vietnam
| | | | - Chinh N. Le
- NTT Hi-Tech Institute
- Nguyen Tat Thanh University
- Ho Chi Minh City
- Vietnam
| | - Van V. Vu
- NTT Hi-Tech Institute
- Nguyen Tat Thanh University
- Ho Chi Minh City
- Vietnam
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16
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Leung CWT, Guo F, Hong Y, Zhao E, Kwok RTK, Leung NLC, Chen S, Vaikath NN, El-Agnaf OM, Tang Y, Gai WP, Tang BZ. Detection of oligomers and fibrils of α-synuclein by AIEgen with strong fluorescence. Chem Commun (Camb) 2015; 51:1866-9. [PMID: 25526628 DOI: 10.1039/c4cc07911f] [Citation(s) in RCA: 59] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We report a fluorophore, TPE-TPP, with AIE characteristics which is utilized as a fluorescence probe to monitor the α-synuclein (α-Syn) fibrillation process. Compared with ThT, TPE-TPP shows a higher sensitivity in the detection of α-Syn oligomers as well as fibrils with a stronger fluorescence. The performance of TPE-TPP was evaluated using fluorescence, AFM, dot blot, and SEC.
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Affiliation(s)
- Chris Wai Tung Leung
- HKUST Shenzhen Research Institute, No. 9 Yuexing 1st RD, South Area, Hi-tech Park Nanshan, Shenzhen 518057, China.
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17
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Li J, Han Q, Wang X, Yu N, Yang L, Yang R, Wang C. Reduced aggregation and cytotoxicity of amyloid peptides by graphene oxide/gold nanocomposites prepared by pulsed laser ablation in water. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2014; 10:4386-4394. [PMID: 25059878 DOI: 10.1002/smll.201401121] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/22/2014] [Revised: 06/18/2014] [Indexed: 06/03/2023]
Abstract
A novel and convenient method to synthesize the nanocomposites combining graphene oxides (GO) with gold nanoparticles (AuNPs) is reported and their applications to modulate amyloid peptide aggregation are demonstrated. The nanocomposites produced by pulsed laser ablation (PLA) in water show good biocompatibility and solubility. The reduced aggregation of amyloid peptides by the nanocomposites is confirmed by Thioflavin T fluorescence and atomic force microscopy. The cell viability experiments reveals that the presence of the nanocomposites can significantly reduce the cytotoxicity of the amyloid peptides. Furthermore, the depolymerization of peptide fibrils and inhibition of their cellular cytotoxicity by GO/AuNPs is also observed. These observations suggest that the nanocomposites combining GO and AuNPs have a great potential for designing new therapeutic agents and are promising for future treatment of amyloid-related diseases.
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Affiliation(s)
- Jingying Li
- CAS Key Lab for Biological Effects of Nanomaterials and Nanosafety, National Center for Nanoscience and Technology, Beijing, 100190, (China)
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18
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Zhang J, Zhou X, Yu Q, Yang L, Sun D, Zhou Y, Liu J. Epigallocatechin-3-gallate (EGCG)-stabilized selenium nanoparticles coated with Tet-1 peptide to reduce amyloid-β aggregation and cytotoxicity. ACS APPLIED MATERIALS & INTERFACES 2014; 6:8475-87. [PMID: 24758520 DOI: 10.1021/am501341u] [Citation(s) in RCA: 118] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
Alzheimer's disease (AD), the most common neurodegenerative disease, is caused by an accumulation of amyloid-β (Aβ) plaque deposits in the brains. Evidence is increasingly showing that epigallocatechin-3-gallate (EGCG) can partly protect cells from Aβ-mediated neurotoxicity by inhibiting Aβ aggregation. In order to better understand the process of Aβ aggregation and amyloid fibril disaggregation and reduce the cytotoxicity of EGCG at high doses, we attached EGCG onto the surface of selenium nanoparticles (EGCG@Se). Given the low delivery efficiency of EGCG@Se to the targeted cells and the involvement of selenoprotein in antioxidation and neuroprotection, which are the key factors for preventing the onset and progression of AD, we synthesized EGCG-stabilized selenium nanoparticles coated with Tet-1 peptide (Tet-1-EGCG@Se, a synthetic selenoprotein analogue), considering the affinity of Tet-1 peptide to neurons. We revealed that Tet-1-EGCG@Se can effectively inhibit Aβ fibrillation and disaggregate preformed Aβ fibrils into nontoxic aggregates. In addition, we found that both EGCG@Se and Tet-1-EGCG@Se can label Aβ fibrils with a high affinity, and Tet-1 peptides can significantly enhance the cellular uptake of Tet-1-EGCG@Se in PC12 cells rather than in NIH/3T3 cells.
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Affiliation(s)
- Jingnan Zhang
- Department of Chemistry, Jinan University , Guangzhou 510632, China
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19
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Wang J, Qu X. Recent progress in nanosensors for sensitive detection of biomolecules. NANOSCALE 2013; 5:3589-3600. [PMID: 23529571 DOI: 10.1039/c3nr00084b] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Developing sensitive, rapid, and cost-effective methods for detection of biomolecules is important for both clinical and numerous non-clinical applications. During the last two decades, functional nanomaterials with unique physical and chemical properties have provided significant advantages for biological detection. In this feature article, we introduce recent progress in nanobiosensor development by exploiting the optical, electrical and catalytic properties of a range of nanomaterials, with a focus on gold nanoparticles, carbon nanotubes, graphene and carbon dots. In addition, the perspectives on future opportunities and unsolved challenges are also discussed.
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Affiliation(s)
- Jiasi Wang
- Laboratory of Chemical Biology, Division of Biological Inorganic Chemistry, Changchun Institute of Applied Chemistry, Graduate School of the Chinese Academy of Sciences, Chinese Academy of Sciences, Changchun, Jilin 130022, China
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20
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Li M, Zhao C, Yang X, Ren J, Xu C, Qu X. In situ monitoring Alzheimer's disease β-amyloid aggregation and screening of Aβ inhibitors using a perylene probe. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2013; 9:52-55. [PMID: 22976818 DOI: 10.1002/smll.201201543] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/03/2012] [Revised: 08/15/2012] [Indexed: 06/01/2023]
Abstract
A cationic perylene tetracarboxylic acid diimide derivative (1) is employed as a probe for in situ monitoring of Aβ aggregation and screening Aβ inhibitors. The assay is based on the fluorescence change through the aggregation of compound 1 following Aβ assembly. Importantly, this probe, compared with the well known amyloid-staining compound thioflavin T (ThT), is more sensitive to Aβ oligomer, which is highly toxic and plays a crucial role in the early stages of Alzheimer's disease.
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Affiliation(s)
- Meng Li
- Laboratory of Chemical Biology, Division of Biological Inorganic Chemistry, State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Graduate School of the Chinese Academy of Sciences, Chinese Academy of Sciences, Changchun 130022, China
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21
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Applications in Cancer Diagnosis and Therapy. CHINESE JOURNAL OF ANALYTICAL CHEMISTRY 2012. [DOI: 10.3724/sp.j.1096.2011.01451] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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22
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Wang J, Wu L, Ren J, Qu X. Visualizing human telomerase activity with primer-modified Au nanoparticles. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2012; 8:259-264. [PMID: 22083963 DOI: 10.1002/smll.201101938] [Citation(s) in RCA: 115] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/16/2011] [Indexed: 05/31/2023]
Abstract
Telomerase is over-expressed in over 85% of all known human tumors. This renders the enzyme a valuable biomarker for cancer diagnosis and an important therapeutic target. The most widely used telomeric repeat amplification protocol (TRAP) assay has been questioned for telomerase detection. It is reported that human telomerase activity can be visualized by using primer-modified Au nanoparticles. The working principle is based on the elongated primers conjugated to the gold nanoparticle (AuNP) surface, which can fold into a G-quadruplex to protect the AuNPs from the aggregation. The developed simple and sensitive colorimetric assay can measure telomerase activity down to 1 HeLa cell µL(-1). More importantly, this assay can be easily extended to high-throughput and automatic format. The AuNP-TS method is PCR-free and therefore avoids the amplification-related errors and becomes more reliable to evaluate telomerase activity. This assay has also been used for initial screening of telomerase inhibitors as anticancer drug agents.
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Affiliation(s)
- Jiasi Wang
- Division of Biological Inorganic Chemistry, State Key Laboratory of Rare Earth Resource Utilization, Laboratory of Chemical Biology, Graduate School of the Chinese Academy of Sciences, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin 130022, China
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23
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Li M, Liu Z, Ren J, Qu X. Inhibition of metal-induced amyloid aggregation using light-responsive magnetic nanoparticle prochelator conjugates. Chem Sci 2012. [DOI: 10.1039/c1sc00631b] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
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24
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Song Y, Wei W, Qu X. Colorimetric biosensing using smart materials. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2011; 23:4215-36. [PMID: 21800383 DOI: 10.1002/adma.201101853] [Citation(s) in RCA: 431] [Impact Index Per Article: 33.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/18/2011] [Indexed: 05/20/2023]
Abstract
In recent years, colorimetric biosensing has attracted much attention because of its low cost, simplicity, and practicality. Since color changes can be read out by the naked eye, colorimetric biosensing does not require expensive or sophisticated instrumentation and may be applied to field analysis and point-of-care diagnosis. For transformation of the detection events into color changes, a number of smart materials have been developed, including gold nanoparticles, magnetic nanoparticles, cerium oxide nanoparticles, carbon nanotubes, graphene oxide, and conjugated polymers. Here, we focus on recent developments in colorimetric biosensing using these smart materials. Along with introducing the mechanisms of color changes based on different smart materials, we concentrate on the design of biosensing assays and their potential applications in biomedical diagnosis and environmental monitoring.
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Affiliation(s)
- Yujun Song
- Division of Biological Inorganic Chemistry, State Key Laboratory of Rare Earth Resource Utilization, Laboratory of Chemical Biology, Changchun, Jilin 130022, China
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25
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Geng J, Li M, Ren J, Wang E, Qu X. Polyoxometalates as Inhibitors of the Aggregation of Amyloid β Peptides Associated with Alzheimer’s Disease. Angew Chem Int Ed Engl 2011. [DOI: 10.1002/ange.201007067] [Citation(s) in RCA: 55] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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26
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Geng J, Li M, Ren J, Wang E, Qu X. Polyoxometalates as Inhibitors of the Aggregation of Amyloid β Peptides Associated with Alzheimer’s Disease. Angew Chem Int Ed Engl 2011; 50:4184-8. [DOI: 10.1002/anie.201007067] [Citation(s) in RCA: 179] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2010] [Revised: 02/16/2011] [Indexed: 01/23/2023]
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