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Shang Z, Deng Z, Yi X, Yang M, Nong X, Lin M, Xia F. Construction and bioanalytical applications of poly-adenine-mediated gold nanoparticle-based spherical nucleic acids. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2023; 15:5564-5576. [PMID: 37861233 DOI: 10.1039/d3ay01618h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2023]
Abstract
Owing to the versatile photophysical and chemical properties, spherical nucleic acids (SNAs) have been widely used in biosensing. However, traditional SNAs are formed by self-assembly of thiolated DNA on the surface of a gold nanoparticle (AuNP), where it is challenging to precisely control the orientation and surface density of DNA. As a new SNA, a polyadenine (polyA)-mediated SNA using the high binding affinity of consecutive adenines to AuNPs shows controllable surface density and configuration of DNA, which can be used to improve the performance of a biosensor. Herein, we first introduce the properties of polyA-mediated SNAs and fundamental principles regarding the polyA-AuNP interaction. Then, we provide an overview of current representative synthesis methods of polyA-mediated SNAs and their advantages and disadvantages. After that, we summarize the application of polyA-mediated SNAs in biosensing based on fluorescence and colorimetric methods, followed by discussion and an outlook of future challenges in this field.
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Affiliation(s)
- Zhiwei Shang
- State Key Laboratory of Biogeology and Environmental Geology, Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, China.
| | - Zixuan Deng
- State Key Laboratory of Biogeology and Environmental Geology, Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, China.
| | - Xiaoqing Yi
- Key Laboratory of Prevention and Treatment of Cardiovascular and Cerebrovascular Diseases, Ministry of Education, Gannan Medical University, Ganzhou 341000, China
| | - Mengyu Yang
- State Key Laboratory of Biogeology and Environmental Geology, Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, China.
| | - Xianliang Nong
- State Key Laboratory of Biogeology and Environmental Geology, Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, China.
| | - Meihua Lin
- State Key Laboratory of Biogeology and Environmental Geology, Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, China.
| | - Fan Xia
- State Key Laboratory of Biogeology and Environmental Geology, Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, China.
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Mingot J, Benejam N, Víllora G, Alemán C, Armelin E, Lanzalaco S. Multimodal Biomedical Implant with Plasmonic and Simulated Body Temperature Responses. Macromol Biosci 2023; 23:e2300118. [PMID: 37081810 DOI: 10.1002/mabi.202300118] [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: 03/25/2023] [Indexed: 04/22/2023]
Abstract
This work presents a novel nanoparticle-based thermosensor implant able to reveal the precise temperature variations along the polymer filaments, as it contracts and expands due to changes in the macroscale local temperature. The multimodal device is able to trace the position and the temperature of a polypropylene mesh, employed in abdominal hernia repair, by combining plasmon resonance and Raman spectroscopy with hydrogel responsive system. The novelty relies on the attachment of the biocompatible nanoparticles, based on gold stabilized by a chitosan-shell, already charged with the Raman reporter (RaR) molecules, to the robust prosthesis, without the need of chemical linkers. The SERS enhanced effect observed is potentiated by the presence of a quite thick layer of the copolymer (poly(N-isopropylacrylamide)-co-poly(acrylamide)) hydrogel. At temperatures above the LCST of PNIPAAm-co-PAAm, the water molecules are expulsed and the hydrogel layer contracts, leaving the RaR molecules more accessible to the Raman source. In vitro studies with fibroblast cells reveal that the functionalized surgical mesh is biocompatible and no toxic substances are leached in the medium. The mesh sensor opens new frontiers to semi-invasive diagnosis and infection prevention in hernia repair by using SERS spectroscopy. It also offers new possibilities to the functionalization of other healthcare products.
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Affiliation(s)
- Júlia Mingot
- Departament of Chemical Engineering, Universitat Politècnica de Catalunya (UPC), C/d'Eduard Maristany, 10-14, Building I, Barcelona, 08019, Spain
- Barcelona Research Centre for Multiscale Science and Engineering, Universitat Politècnica de Catalunya (UPC), C/d'Eduard Maristany, 10-14, Building I, 08019, Barcelona, Spain
| | - Nícolas Benejam
- Departament of Chemical Engineering, Universitat Politècnica de Catalunya (UPC), C/d'Eduard Maristany, 10-14, Building I, Barcelona, 08019, Spain
| | - Gloria Víllora
- Chemical Engineering Department, Faculty of Chemistry, University of Murcia, Campus Espinardo, 30100, Murcia, Spain
| | - Carlos Alemán
- Departament of Chemical Engineering, Universitat Politècnica de Catalunya (UPC), C/d'Eduard Maristany, 10-14, Building I, Barcelona, 08019, Spain
- Barcelona Research Centre for Multiscale Science and Engineering, Universitat Politècnica de Catalunya (UPC), C/d'Eduard Maristany, 10-14, Building I, 08019, Barcelona, Spain
- Institute for Bioengineering of Catalonia (IBEC), The Barcelona Institute of Science and Technology, C/Baldiri Reixac 10-12, 08028, Barcelona, Spain
| | - Elaine Armelin
- Departament of Chemical Engineering, Universitat Politècnica de Catalunya (UPC), C/d'Eduard Maristany, 10-14, Building I, Barcelona, 08019, Spain
- Barcelona Research Centre for Multiscale Science and Engineering, Universitat Politècnica de Catalunya (UPC), C/d'Eduard Maristany, 10-14, Building I, 08019, Barcelona, Spain
| | - Sonia Lanzalaco
- Departament of Chemical Engineering, Universitat Politècnica de Catalunya (UPC), C/d'Eduard Maristany, 10-14, Building I, Barcelona, 08019, Spain
- Barcelona Research Centre for Multiscale Science and Engineering, Universitat Politècnica de Catalunya (UPC), C/d'Eduard Maristany, 10-14, Building I, 08019, Barcelona, Spain
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Ngake T, Gulumian M, Cronjé S, Harris R. Modelling and simulation study of the influence of size and surface functionality on the stability of PEG-functionalised AgNPs. MOLECULAR SIMULATION 2022. [DOI: 10.1080/08927022.2022.2141809] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- T. Ngake
- Department of Physics, University of the Free State, Bloemfontein, South Africa
| | - M. Gulumian
- School of Pathology, Haematology and Molecular Medicine, University of the Witwatersrand, and Water Research Group, North West University, Potchefstroom, South Africa
| | - S. Cronjé
- Department of Physics, University of the Free State, Bloemfontein, South Africa
| | - R.A. Harris
- Department of Physics, University of the Free State, Bloemfontein, South Africa
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Nqayi S, Gulumian M, Cronjé S, Harris RA. Computational study of the effect of size and surface functionalization on Au nanoparticles on their stability to study biological descriptors. J Mol Model 2022; 28:376. [DOI: 10.1007/s00894-022-05367-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2022] [Accepted: 10/24/2022] [Indexed: 11/06/2022]
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