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Lai YR, Wang SSS, Lin TH. Using silver nanoparticle-decorated whey protein isolate amyloid fibrils to modify the electrode surface used for electrochemical detection of para-nitrophenol. Int J Biol Macromol 2024; 264:130404. [PMID: 38417752 DOI: 10.1016/j.ijbiomac.2024.130404] [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: 12/29/2023] [Revised: 02/20/2024] [Accepted: 02/21/2024] [Indexed: 03/01/2024]
Abstract
Due to their organized structures, remarkable stiffness, and nice biocompatibility and biodegradability, amyloid fibrils serve as building blocks for versatile sustainable materials. Silver nanoparticles (AgNPs) are commonly used as the nano-catalysts for various electrochemical reactions. Given their large specific surface area and high surface energy, AgNPs exhibit high aggregation propensity, which hampers their electrocatalytic performance. Food protein wastes have been identified to be associated with climate change and environmental impacts, and a surplus of whey proteins in dairy industries causes high biological and chemical demands, and greenhouse gas emissions. This study is aimed at constructing sustainable electrode surface modifiers using AgNP-deposited whey protein amyloid fibrils (AgNP/WPI-AFs). AgNP/WPI-AFs were synthesized and characterized via spectroscopic techniques, electron microscopy, and X-ray diffraction. Next, the electrocatalytic performance of AgNP/WPI-AF modified electrode was assessed via para-nitrophenol (p-NP) reduction combined with various electrochemical analyses. Moreover, the reaction mechanism of p-NP electrocatalysis on the surface of AgNP/WPI-AF modified electrode was investigated. The detection range, limit of detection, sensitivity, and selectivity of the AgNP/WPI-AF modified electrode were evaluated accordingly. This work not only demonstrates an alternative for whey valorization but also highlights the feasibility of using amyloid-based hybrid materials as the electrode surface modifier for electrochemical sensing purposes.
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Affiliation(s)
- You-Ren Lai
- Department of Chemical Engineering, National Taiwan University, Taipei 10617, Taiwan
| | - Steven S-S Wang
- Department of Chemical Engineering, National Taiwan University, Taipei 10617, Taiwan.
| | - Ta-Hsien Lin
- Laboratory of Nuclear Magnetic Resonance, Department of Medical Research, Taipei Veterans General Hospital, Taipei 11217, Taiwan; Institute of Biochemistry and Molecular Biology, National Yang Ming Chiao Tung University, Taipei 11221, Taiwan.
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2
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Benko A, Webster TJ. How to fix a broken heart-designing biofunctional cues for effective, environmentally-friendly cardiac tissue engineering. Front Chem 2023; 11:1267018. [PMID: 37901157 PMCID: PMC10602933 DOI: 10.3389/fchem.2023.1267018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Accepted: 09/04/2023] [Indexed: 10/31/2023] Open
Abstract
Cardiovascular diseases bear strong socioeconomic and ecological impact on the worldwide healthcare system. A large consumption of goods, use of polymer-based cardiovascular biomaterials, and long hospitalization times add up to an extensive carbon footprint on the environment often turning out to be ineffective at healing such cardiovascular diseases. On the other hand, cardiac cell toxicity is among the most severe but common side effect of drugs used to treat numerous diseases from COVID-19 to diabetes, often resulting in the withdrawal of such pharmaceuticals from the market. Currently, most patients that have suffered from cardiovascular disease will never fully recover. All of these factors further contribute to the extensive negative toll pharmaceutical, biotechnological, and biomedical companies have on the environment. Hence, there is a dire need to develop new environmentally-friendly strategies that on the one hand would promise cardiac tissue regeneration after damage and on the other hand would offer solutions for the fast screening of drugs to ensure that they do not cause cardiovascular toxicity. Importantly, both require one thing-a mature, functioning cardiac tissue that can be fabricated in a fast, reliable, and repeatable manner from environmentally friendly biomaterials in the lab. This is not an easy task to complete as numerous approaches have been undertaken, separately and combined, to achieve it. This review gathers such strategies and provides insights into which succeed or fail and what is needed for the field of environmentally-friendly cardiac tissue engineering to prosper.
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Affiliation(s)
| | - Thomas J. Webster
- Department of Biomedical Engineering, Hebei University of Technology, Tianjin, China
- School of Engineering, Saveetha University, Chennai, India
- Program in Materials Science, UFPI, Teresina, Brazil
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3
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Pourmasoumi P, Moghaddam A, Nemati Mahand S, Heidari F, Salehi Moghaddam Z, Arjmand M, Kühnert I, Kruppke B, Wiesmann HP, Khonakdar HA. A review on the recent progress, opportunities, and challenges of 4D printing and bioprinting in regenerative medicine. JOURNAL OF BIOMATERIALS SCIENCE. POLYMER EDITION 2023; 34:108-146. [PMID: 35924585 DOI: 10.1080/09205063.2022.2110480] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Four-dimensional (4 D) printing is a novel emerging technology, which can be defined as the ability of 3 D printed materials to change their form and functions. The term 'time' is added to 3 D printing as the fourth dimension, in which materials can respond to a stimulus after finishing the manufacturing process. 4 D printing provides more versatility in terms of size, shape, and structure after printing the construct. Complex material programmability, multi-material printing, and precise structure design are the essential requirements of 4 D printing systems. The utilization of stimuli-responsive polymers has increasingly taken the place of cell traction force-dependent methods and manual folding, offering a more advanced technique to affect a construct's adjusted shape transformation. The present review highlights the concept of 4 D printing and the responsive bioinks used in 4 D printing, such as water-responsive, pH-responsive, thermo-responsive, and light-responsive materials used in tissue regeneration. Cell traction force methods are described as well. Finally, this paper aims to introduce the limitations and future trends of 4 D printing in biomedical applications based on selected key references from the last decade.
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Affiliation(s)
| | | | | | - Fatemeh Heidari
- Iran Polymer and Petrochemical Institute (IPPI), Tehran, Iran
| | - Zahra Salehi Moghaddam
- Department of Microbial Biotechnology, School of Biology, College of Science, University of Tehran, Tehran, Iran
| | - Mohammad Arjmand
- Nanomaterials and Polymer Nanocomposites Laboratory, School of Engineering, University of British Columbia, Kelowna, BC, Canada
| | - Ines Kühnert
- Leibniz Institute of Polymer Research Dresden, Dresden, Germany
| | - Benjamin Kruppke
- Max Bergmann Center of Biomaterials and Institute of Materials Science, Technische Universität Dresden, Dresden, Germany
| | - Hans-Peter Wiesmann
- Max Bergmann Center of Biomaterials and Institute of Materials Science, Technische Universität Dresden, Dresden, Germany
| | - Hossein Ali Khonakdar
- Iran Polymer and Petrochemical Institute (IPPI), Tehran, Iran.,Leibniz Institute of Polymer Research Dresden, Dresden, Germany
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4
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Diaz-Espinoza R. Catalytically Active Amyloids as Future Bionanomaterials. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:3802. [PMID: 36364578 PMCID: PMC9656882 DOI: 10.3390/nano12213802] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/17/2022] [Revised: 10/14/2022] [Accepted: 10/24/2022] [Indexed: 06/16/2023]
Abstract
Peptides and proteins can aggregate into highly ordered and structured conformations called amyloids. These supramolecular structures generally have convergent features, such as the formation of intermolecular beta sheets, that lead to fibrillary architectures. The resulting fibrils have unique mechanical properties that can be exploited to develop novel nanomaterials. In recent years, sequences of small peptides have been rationally designed to self-assemble into amyloids that catalyze several chemical reactions. These amyloids exhibit reactive surfaces that can mimic the active sites of enzymes. In this review, I provide a state-of-the-art summary of the development of catalytically active amyloids. I will focus especially on catalytic activities mediated by hydrolysis, which are the most studied examples to date, as well as novel types of recently reported activities that promise to expand the possible repertoires. The combination of mechanical properties with catalytic activity in an amyloid scaffold has great potential for the development of future bionanomaterials aimed at specific applications.
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Affiliation(s)
- Rodrigo Diaz-Espinoza
- Departamento de Biología, Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago 3363, Chile
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5
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Soliman MG, Davies HA, Sharkey J, Lévy R, Madine J. Development of amyloid beta gold nanorod aggregates as optoacoustic probes. PLoS One 2022; 17:e0259608. [PMID: 35333865 PMCID: PMC8956182 DOI: 10.1371/journal.pone.0259608] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2021] [Accepted: 03/10/2022] [Indexed: 11/22/2022] Open
Abstract
Propagation of small amyloid beta (Aβ) aggregates (or seeds) has been suggested as a potential mechanism of Alzheimer’s disease progression. Monitoring the propagation of Aβ seeds in an organism would enable testing of this hypothesis and, if confirmed, provide mechanistic insights. This requires a contrast agent for long-term tracking of the seeds. Gold nanorods combine several attractive features for this challenging task, in particular, their strong absorbance in the infrared (enabling optoacoustic imaging) and the availability of several established protocols for surface functionalisation. In this work, polymer-coated gold nanorods were conjugated with anti-Aβ antibodies and attached to pre-formed Aβ seeds. The resulting complexes were characterised for their optical properties by UV/Vis spectroscopy and multispectral optoacoustic tomography. The complexes retained their biophysical properties, i.e. their ability to seed Aβ fibril formation. They remained stable in biological media for at least 2 days and showed no toxicity to SH-SY5Y neuroblastoma cells up to 1.5 nM and 6 μM of gold nanorods and Aβ seeds, respectively. Taken together, this study describes the first steps in the development of probes for monitoring the spread of Aβ seeds in animal models.
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Affiliation(s)
- Mahmoud G. Soliman
- Institute of Systems, Molecular and Integrative Biology, University of Liverpool, Liverpool, United Kingdom
- Physics Department, Faculty of Science, Al-Azhar University, Cairo, Egypt
| | - Hannah A. Davies
- Institute of Systems, Molecular and Integrative Biology, University of Liverpool, Liverpool, United Kingdom
| | - Jack Sharkey
- Centre for Pre-Clinical Imaging, University of Liverpool, Liverpool, United Kingdom
| | - Raphaël Lévy
- Université Sorbonne Paris Nord and Université de Paris, INSERM, LVTS, Paris, France
| | - Jillian Madine
- Institute of Systems, Molecular and Integrative Biology, University of Liverpool, Liverpool, United Kingdom
- * E-mail:
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Gold Nanorods for Drug and Gene Delivery: An Overview of Recent Advancements. Pharmaceutics 2022; 14:pharmaceutics14030664. [PMID: 35336038 PMCID: PMC8951391 DOI: 10.3390/pharmaceutics14030664] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2022] [Revised: 03/14/2022] [Accepted: 03/15/2022] [Indexed: 02/04/2023] Open
Abstract
Over the past few decades, gold nanomaterials have shown great promise in the field of nanotechnology, especially in medical and biological applications. They have become the most used nanomaterials in those fields due to their several advantageous. However, rod-shaped gold nanoparticles, or gold nanorods (GNRs), have some more unique physical, optical, and chemical properties, making them proper candidates for biomedical applications including drug/gene delivery, photothermal/photodynamic therapy, and theranostics. Most of their therapeutic applications are based on their ability for tunable heat generation upon exposure to near-infrared (NIR) radiation, which is helpful in both NIR-responsive cargo delivery and photothermal/photodynamic therapies. In this review, a comprehensive insight into the properties, synthesis methods and toxicity of gold nanorods are overviewed first. For the main body of the review, the therapeutic applications of GNRs are provided in four main sections: (i) drug delivery, (ii) gene delivery, (iii) photothermal/photodynamic therapy, and (iv) theranostics applications. Finally, the challenges and future perspectives of their therapeutic application are discussed.
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Gold nanorods decorated polycaprolactone/cellulose acetate hybrid scaffold for PC12 cells proliferation. Int J Biol Macromol 2022; 206:511-520. [PMID: 35240215 DOI: 10.1016/j.ijbiomac.2022.02.156] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2021] [Revised: 02/15/2022] [Accepted: 02/25/2022] [Indexed: 01/12/2023]
Abstract
Synthetic and natural polymers have recently received considerable attention due to the exclusive potential for supporting the regenerative cellular processes in peripheral nerve injuries (PNIs). Gold nanorods (GNRs) decorated polycaprolactone (PCL)/cellulose acetate (CA) nanocomposite (PCL/CA/GNR) were fabricated via electrospinning to improve PC12 cells attachment and growth or scaffold cues. Transmission electron microscopy (TEM) corroborated the GNR distribution (23 ± 2 nm length and 3/1 Aspect ratio) and suitable average dimension of 800 nm for the fibers; also, scanning electron microscopy (SEM) represented block-free and smooth fibers without perturbation. Because of gold nanorods incorporation, electrical conductivity of PCL/CA/GNR increased ~21%. Water contact angle data emphasized PCL/CA/GNR surface is more wettable that PCL/CA (<90° at 62 s). Real-time PCR technique (RT-PCR) demonstrated overexpression of β-tubulin and microtubule-associated protein 2 (MAP2) on PCL/CA/GNR compared to PCL/CA composite. Additionally, evaluated of the maturation and neurogenic differentiation of PC12 cells emphasized overexpression of nestin and β-tubulin by Immunocytochemistry staining onto PCL/CA/GNR in comparison to PCL/CA composite. Notably, these recently developed hybrid scaffolds could be considered for peripheral nerve injury (PNI) regeneration.
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Hanif S, Muhammad P, Niu Z, Ismail M, Morsch M, Zhang X, Li M, Shi B. Nanotechnology‐Based Strategies for Early Diagnosis of Central Nervous System Disorders. ADVANCED NANOBIOMED RESEARCH 2021. [DOI: 10.1002/anbr.202100008] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Affiliation(s)
- Sumaira Hanif
- Henan-Macquarie University Joint Centre for Biomedical Innovation School of Life Sciences Henan University Kaifeng Henan 475004 China
| | - Pir Muhammad
- Henan-Macquarie University Joint Centre for Biomedical Innovation School of Life Sciences Henan University Kaifeng Henan 475004 China
| | - Zheng Niu
- Province's Key Lab of Brain Targeted Bionanomedicine School of Pharmacy Henan University Kaifeng Henan 475004 China
| | - Muhammad Ismail
- Henan-Macquarie University Joint Centre for Biomedical Innovation School of Life Sciences Henan University Kaifeng Henan 475004 China
| | - Marco Morsch
- Department of Biomedical Sciences Macquarie University Centre for Motor Neuron Disease Research Macquarie University NSW 2109 Australia
| | - Xiaoju Zhang
- Department of Respiratory and Critical Care Medicine Henan Provincial People's Hospital Zhengzhou Henan 450003 China
| | - Mingqiang Li
- Laboratory of Biomaterials and Translational Medicine The Third Affiliated Hospital Sun Yat-sen University Guangzhou Guangdong 510630 China
| | - Bingyang Shi
- Department of Biomedical Sciences Faculty of Medicine & Health & Human Sciences Macquarie University NSW 2109 Australia
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9
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Ahmed W, Zhang H, Gao C. Influence of enantiomeric polylysine grafted on gold nanorods on the uptake and inflammatory response of bone marrow-derived macrophages in vitro. J Biomed Mater Res A 2021; 110:143-155. [PMID: 34289249 DOI: 10.1002/jbm.a.37272] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2021] [Revised: 06/24/2021] [Accepted: 07/07/2021] [Indexed: 12/17/2022]
Abstract
The macrophages take significant roles in homeostasis, phagocytosis of pathogenic organisms, and modulation of host defense and inflammatory processes. In this study, the enantiomeric poly-D-lysine (PDL) and poly-L-lysine (PLL) were conjugated to gold nanorods (AuNRs) to study their influence on the polarization of macrophages. The AuNRs capped with cetyl trimethyl ammonium bromide (CTAB) (AuNRs@CTAB) exhibited larger toxicity to macrophages when their concentration was higher than 50 μg/ml, whereas the AuNRs@PDL and AuNRs@PLL showed neglectable toxicity at the same concentration compared with the control. The AuNRs@PDL and AuNRs@PLL were internalized into the macrophages with a higher value than the AuNRs@CTAB as revealed by transmission electron microscopy (TEM) and inductively coupled plasma mass spectrometry (ICP-MS) characterization. Unlike the grafted PDL/PLL on flat substrates, the AuNRs@PDL and AuNRs@PLL were not able to polarize M0 macrophages to any other phenotype after internalization as confirmed by ELISA, flow cytometry, and fluorescence microscopy analysis. Nonetheless, the expression of M1 phenotype markers was reduced after the internalization of AuNRs@PDL and AuNRs@PLL by M1 macrophages. The assays of ELISA, flow cytometry, and reactive oxygen species levels exhibited decrease in inflammation of the M1 macrophages.
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Affiliation(s)
- Wajiha Ahmed
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, China
| | - Haolan Zhang
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, China
| | - Changyou Gao
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, China
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10
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Topkaya SN, Turunc E, Cetin AE. Multi‐walled Carbon Nanotubes and Gold Nanorod Decorated Biosensor for Detection of microRNA‐126. ELECTROANAL 2021. [DOI: 10.1002/elan.202100198] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Seda Nur Topkaya
- Department of Analytical Chemistry, Faculty of Pharmacy Izmir Katip Celebi University Cigli 35620 Izmir Turkey
| | - Ezgi Turunc
- Department of Biochemistry, Faculty of Pharmacy Izmir Katip Celebi University Cigli 35620 Izmir Turkey
| | - Arif E. Cetin
- Izmir Biomedicine and Genome Center Balcova 35340 Izmir Turkey
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11
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Kumar V, Sinha N, Thakur AK. Necessity of regulatory guidelines for the development of amyloid based biomaterials. Biomater Sci 2021; 9:4410-4422. [PMID: 34018497 DOI: 10.1039/d1bm00059d] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Amyloid diseases are caused due to protein homeostasis failure where incorrectly folded proteins/peptides form cross-β-sheet rich amyloid fibrillar structures. Besides proteins/peptides, small metabolite assemblies also exhibit amyloid-like features. These structures are linked to several human and animal diseases. In addition, non-toxic amyloids with diverse physiological roles are characterized as a new functional class. This finding, along with the unique properties of amyloid like stability and mechanical strength, led to a surge in the development of amyloid-based biomaterials. However, the usage of these materials by humans and animals may pose a health risk such as the development of amyloid diseases and toxicity. This is possible because amyloid-based biomaterials and their fragments may assist seeding and cross-seeding mechanisms of amyloid formation in the body. This review summarizes the potential uses of amyloids as biomaterials, the concerns regarding their usage, and a prescribed workflow to initiate a regulatory approach.
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Affiliation(s)
- Vijay Kumar
- Department of Molecular Microbiology and Biotechnology, Shmunis School of Biomedicine and Cancer Research, George S. Wise Faculty of Life Sciences, Tel Aviv University, Tel Aviv 69978, Israel
| | - Nabodita Sinha
- Department of Biological Sciences and Bioengineering, Indian Institute of Technology Kanpur, UP-208016, India.
| | - Ashwani Kumar Thakur
- Department of Biological Sciences and Bioengineering, Indian Institute of Technology Kanpur, UP-208016, India.
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12
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Glaskin K. Extinction, Inscription and the Dreaming: Exploring a Thylacine Connection. ANTHROPOLOGICAL FORUM 2021. [DOI: 10.1080/00664677.2021.1937513] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Katie Glaskin
- Discipline of Anthropology and Sociology, University of Western Australia, Crawley, Australia
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14
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Fayazi R, Habibi-Rezaei M, Heiat M, Javadi-Zarnaghi F, Taheri RA. Glycated albumin precipitation using aptamer conjugated magnetic nanoparticles. Sci Rep 2020; 10:10716. [PMID: 32612182 PMCID: PMC7329883 DOI: 10.1038/s41598-020-67469-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2019] [Accepted: 06/02/2020] [Indexed: 01/10/2023] Open
Abstract
To develop a strategy for the elimination of prefibrillar amyloid aggregates, a three-step non-modified DNA aptamer conjugation on silica-coated magnetic nanoparticles was carried out to achieve aptamer conjugated on MNP (Ap-SiMNP). Prefibrillar amyloid aggregates are generated under a diabetic condition which are prominently participated in developing diabetic complications. The binding properties of candidate DNA aptamer against serum albumin prefibrillar amyloid aggregates (AA20) were verified using electrophoretic mobility shift assay (EMSA) and surface plasmon resonance spectroscopy (SPR) analysis. The chloro-functionalized silica-coated MNPs were synthesized then a nano-targeting structure as aptamer conjugated on MNP (Ap-SiMNP) was constructed. Finally, Ap-SiMNP was verified for specific binding efficiency and AA20 removal using an external magnetic field. The candidate aptamer showed a high binding capacity at EMSA and SPR analysis (KD = 3.4 × 10─9 M) and successfully used to construct Ap-SiMNP. Here, we show a proof of concept for an efficient bio-scavenger as Ap-SiMNP to provide a promising opportunity to consider as a possible strategy to overcome some diabetic complications through specific binding/removal of toxic AA20 species.
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Affiliation(s)
- R Fayazi
- School of Biology, University of Tehran, P.O.Box 14155-6455, Tehran, Iran
| | - M Habibi-Rezaei
- School of Biology, University of Tehran, P.O.Box 14155-6455, Tehran, Iran.
- Center of Excellence in Nano-Biomedicine, University of Tehran, Tehran, Iran.
| | - M Heiat
- Research Center for Gastroenterology and Liver Disease, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - F Javadi-Zarnaghi
- Department of Cell and Molecular Biology and Microbiology, Faculty of Biological Science and Technology, University of Isfahan, Isfahan, Iran
| | - R A Taheri
- Nanobiotechnolology Research Center, Baqiyatallah University of Medical Sciences, Tehran, Iran
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