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Zhu X, Ma N, Wan Y, Wang L, Zhang Y, Yan C, Qian W. Evaluation of covalent coupling strategies for immobilizing ligands on silica colloidal crystal films by optical interferometry. Analyst 2023; 148:1024-1031. [PMID: 36723219 DOI: 10.1039/d2an02079c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Immobilizing ligands is a crucial part of preparing optical sensors and directly connected to the sensitivity, stability, and other characteristics of sensors. In this work, an ordered porous layer interferometry (OPLI) system that can monitor the covalent coupling process of ligands in real time was developed. Films of silica colloidal crystal (SCC), as optical interference substrates, were surface modified by three different reagents: chloroacetic acid, glutaric anhydride, and carboxymethyl dextran. Staphylococcus aureus protein A (SPA), the ligand, was immobilized on SCC films. The covalent coupling process of SPA and SCC films can be dynamically monitored by the OPLI system. In addition, the three different strategies were evaluated by comparing the efficiency of the sensors prepared by different methods for binding Immunoglobulin G (IgG). The glutaric anhydride-modified sensor offers apparent advantages in terms of bound IgG quantity and affinity. This system provides a simple and intuitive way to determine the efficiency of different covalent coupling strategies. Furthermore, the sensor covalently coupled with SPA also excels in the determination of IgG content in complex systems such as milk. At the same time, the covalent coupling gives the sensor the ability to be stored stably over time.
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Affiliation(s)
- Xueyi Zhu
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing, 210096, China.
| | - Ning Ma
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing, 210096, China.
| | - Yizhen Wan
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing, 210096, China.
| | - Lu Wang
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing, 210096, China.
| | - Yu Zhang
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing, 210096, China.
| | - Chengyu Yan
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing, 210096, China.
| | - Weiping Qian
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing, 210096, China.
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Tian X, Cao Z, Wang J, Chen J, Wei Y. Development of high-performance mixed matrix reverse osmosis membranes by incorporating aminosilane-modified hydrotalcite. RSC Adv 2020; 10:5648-5655. [PMID: 35497469 PMCID: PMC9049320 DOI: 10.1039/c9ra10826b] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2019] [Accepted: 01/23/2020] [Indexed: 11/21/2022] Open
Abstract
Thin film nanocomposite (TFN) reverse osmosis (RO) membranes were prepared by dispersing 3-aminopropyltriethoxysilane (APTES) modified hydrotalcite (HT), designated as A-HT, in aqueous solution and incorporating the nanoparticles in polyamide layers during the interfacial polymerization process. Results of Fourier transform infrared spectroscopy and zeta potential characterization showed the successful modification of nanoparticles by APTES. In addition, Fourier transform infrared spectroscopy suggested that amidation would take place between the aminosilane on APTES and trimesoyl chloride in organic solution, providing firm covalent interaction between the nanoparticles and polyamide matrix. Dynamic light scattering and transmission electron microscopy indicated that aminosilane modification improved dispersibility of the nanoparticles in aqueous solution and obtained membranes, which suppressed the aggregation. Both the covalent interaction and aggregation suppression were beneficial to compatibility between nanoparticles and the polyamide matrix. TFN RO membranes incorporated with A-HT demonstrated excellent performance. Compared with the pristine RO membrane, the water flux of A-HT-0.050 prepared with an optimum A-HT concentration of 0.050 wt% was enhanced by 18.6% without sacrificing the salt rejection. Moreover, the selectivity of A-HT-0.050 was superior to that of HT-0.050 prepared with HT of 0.050 wt%, which proved aminosilane modification of hydrotalcite was beneficial to high membrane performance especially to selectivity. Thin film nanocomposite reverse osmosis membranes were prepared by dispersing 3-aminopropyltriethoxysilane modified hydrotalcite in aqueous solution and incorporating the nanoparticles in polyamide layer during interfacial polymerization process.![]()
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Affiliation(s)
- Xinxia Tian
- The Institute of Seawater Desalination and Multipurpose Utilization, MNR (Tianjin) Tianjin 300192 China +86-2287898130
| | - Zhen Cao
- The Institute of Seawater Desalination and Multipurpose Utilization, MNR (Tianjin) Tianjin 300192 China +86-2287898130
| | - Jian Wang
- The Institute of Seawater Desalination and Multipurpose Utilization, MNR (Tianjin) Tianjin 300192 China +86-2287898130
| | - Jiangrong Chen
- The Institute of Seawater Desalination and Multipurpose Utilization, MNR (Tianjin) Tianjin 300192 China +86-2287898130
| | - Yangyang Wei
- The Institute of Seawater Desalination and Multipurpose Utilization, MNR (Tianjin) Tianjin 300192 China +86-2287898130
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Li J, He G, Ueno H, Jia C, Noji H, Qi C, Guo X. Direct real-time detection of single proteins using silicon nanowire-based electrical circuits. NANOSCALE 2016; 8:16172-16176. [PMID: 27714062 DOI: 10.1039/c6nr04103e] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
We present an efficient strategy through surface functionalization to build a single silicon nanowire field-effect transistor-based biosensor that is capable of directly detecting protein adsorption/desorption at the single-event level. The step-wise signals in real-time detection of His-tag F1-ATPases demonstrate a promising electrical biosensing approach with single-molecule sensitivity, thus opening up new opportunities for studying single-molecule biophysics in broad biological systems.
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Affiliation(s)
- Jie Li
- Key Laboratory of Radiopharmaceuticals, Ministry of Education, College of Chemistry, Beijing Normal University, Beijing 100875, P. R. China. and Beijing National Laboratory for Molecular Sciences, State Key Laboratory for Structural Chemistry of Unstable and Stable Species, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, P. R. China.
| | - Gen He
- Key Laboratory of Radiopharmaceuticals, Ministry of Education, College of Chemistry, Beijing Normal University, Beijing 100875, P. R. China. and Beijing National Laboratory for Molecular Sciences, State Key Laboratory for Structural Chemistry of Unstable and Stable Species, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, P. R. China.
| | - Hiroshi Ueno
- Department of Applied Chemistry, School of Engineering, The University of Tokyo, Tokyo 113-8654, Japan.
| | - Chuancheng Jia
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory for Structural Chemistry of Unstable and Stable Species, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, P. R. China.
| | - Hiroyuki Noji
- Department of Applied Chemistry, School of Engineering, The University of Tokyo, Tokyo 113-8654, Japan.
| | - Chuanmin Qi
- Key Laboratory of Radiopharmaceuticals, Ministry of Education, College of Chemistry, Beijing Normal University, Beijing 100875, P. R. China.
| | - Xuefeng Guo
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory for Structural Chemistry of Unstable and Stable Species, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, P. R. China. and Department of Materials Science and Engineering, College of Engineering, Peking University, Beijing 100871, P. R. China
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Córdoba A, Satué M, Gómez-Florit M, Hierro-Oliva M, Petzold C, Lyngstadaas SP, González-Martín ML, Monjo M, Ramis JM. Flavonoid-modified surfaces: multifunctional bioactive biomaterials with osteopromotive, anti-inflammatory, and anti-fibrotic potential. Adv Healthc Mater 2015; 4:540-9. [PMID: 25335455 DOI: 10.1002/adhm.201400587] [Citation(s) in RCA: 48] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2014] [Revised: 10/05/2014] [Indexed: 01/29/2023]
Abstract
Flavonoids are small polyphenolic molecules of natural origin with antioxidant, anti-inflammatory, and antibacterial properties. Here, a bioactive surface based on the covalent immobilization of flavonoids taxifolin and quercitrin on titanium substrates is presented, using (3-aminopropyl)triethoxysilane (APTES) as coupling agent. FTIR and XPS measurements confirm the grafting of the flavonoids to the surfaces. Using 2-aminoethyl diphenylborinate (DPBA, a flavonoid-specific dye), the modified surfaces are imaged by fluorescence microscopy. The bioactivity of the flavonoid-modified surfaces is evaluated in vitro with human umbilical cord derived mesenchymal stem cells (hUC-MSCs) and human gingival fibroblasts (HGFs) and compared to that of simple flavonoid coatings prepared by drop casting. Flavonoid-modified surfaces show anti-inflammatory and anti-fibrotic potential on HGF. In addition, Ti surfaces covalently functionalized with flavonoids promote the differentiation of hUC-MSCs to osteoblasts--enhancing the expression of osteogenic markers, increasing alkaline phosphatase activity and calcium deposition; while drop-casted surfaces do not. These findings could have a high impact in the development of advanced implantable medical devices like bone implants. Given the broad range of bioactivities of flavonoid compounds, these surfaces are ready to be explored for other biomedical applications, e.g., as stent surface or tumor-targeted functionalized nanoparticles for cardiovascular or cancer therapies.
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Affiliation(s)
- Alba Córdoba
- Group of Cell Therapy and Tissue Engineering; Research Institute on Health Sciences (IUNICS); University of the Balearic Islands; Ctra. Valldemossa km 7.5 07122 Palma de Mallorca Spain
| | - María Satué
- Group of Cell Therapy and Tissue Engineering; Research Institute on Health Sciences (IUNICS); University of the Balearic Islands; Ctra. Valldemossa km 7.5 07122 Palma de Mallorca Spain
| | - Manuel Gómez-Florit
- Group of Cell Therapy and Tissue Engineering; Research Institute on Health Sciences (IUNICS); University of the Balearic Islands; Ctra. Valldemossa km 7.5 07122 Palma de Mallorca Spain
| | - Margarita Hierro-Oliva
- Departamento de Física Aplicada; Facultad de Ciencias; Universidad de Extremadura; Badajoz Spain
- Biomedical Research Networking Center in Bioengineering; Biomaterials and Nanomedicine (CIBER-BBN); Spain
| | | | | | - María Luisa González-Martín
- Departamento de Física Aplicada; Facultad de Ciencias; Universidad de Extremadura; Badajoz Spain
- Biomedical Research Networking Center in Bioengineering; Biomaterials and Nanomedicine (CIBER-BBN); Spain
| | - Marta Monjo
- Group of Cell Therapy and Tissue Engineering; Research Institute on Health Sciences (IUNICS); University of the Balearic Islands; Ctra. Valldemossa km 7.5 07122 Palma de Mallorca Spain
| | - Joana M. Ramis
- Group of Cell Therapy and Tissue Engineering; Research Institute on Health Sciences (IUNICS); University of the Balearic Islands; Ctra. Valldemossa km 7.5 07122 Palma de Mallorca Spain
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Sun P, Liu G, Lv D, Dong X, Wu J, Wang D. Effective activation of halloysite nanotubes by piranha solution for amine modification via silane coupling chemistry. RSC Adv 2015. [DOI: 10.1039/c5ra04444h] [Citation(s) in RCA: 82] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Piranha solution is shown to be an effective agent in activating the surface of HNTs for silanization modification.
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Affiliation(s)
- Pan Sun
- Beijing National Laboratory for Molecular Sciences
- CAS Key Laboratory of Engineering Plastics
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
| | - Guoming Liu
- Beijing National Laboratory for Molecular Sciences
- CAS Key Laboratory of Engineering Plastics
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
| | - Dong Lv
- Department of Mechanical and Aerospace Engineering
- The Hong Kong University of Science and Technology
- China
| | - Xia Dong
- Beijing National Laboratory for Molecular Sciences
- CAS Key Laboratory of Engineering Plastics
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
| | - Jingshen Wu
- Department of Mechanical and Aerospace Engineering
- The Hong Kong University of Science and Technology
- China
| | - Dujin Wang
- Beijing National Laboratory for Molecular Sciences
- CAS Key Laboratory of Engineering Plastics
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
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Pujari SP, Scheres L, Marcelis ATM, Zuilhof H. Covalent Surface Modification of Oxide Surfaces. Angew Chem Int Ed Engl 2014; 53:6322-56. [DOI: 10.1002/anie.201306709] [Citation(s) in RCA: 583] [Impact Index Per Article: 58.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2013] [Indexed: 12/26/2022]
Affiliation(s)
- Sidharam P. Pujari
- Laboratory of Organic Chemistry, Wageningen University, P.O. Box 26, 6703 HB Wageningen (The Netherlands)
| | - Luc Scheres
- Surfix B.V. Dreijenplein 8, 6703 HB Wageningen (The Netherlands)
| | - Antonius T. M. Marcelis
- Laboratory of Organic Chemistry, Wageningen University, P.O. Box 26, 6703 HB Wageningen (The Netherlands)
| | - Han Zuilhof
- Laboratory of Organic Chemistry, Wageningen University, P.O. Box 26, 6703 HB Wageningen (The Netherlands)
- Department of Chemical and Materials Engineering, King Abdulaziz University, Jeddah (Saudi Arabia)
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Pujari SP, Scheres L, Marcelis ATM, Zuilhof H. Kovalente Oberflächenmodifikationen von Oxiden. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201306709] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Sidharam P. Pujari
- Laboratory of Organic Chemistry, Wageningen University, P.O. Box 26, 6703 HB Wageningen (Niederlande)
| | | | - Antonius T. M. Marcelis
- Laboratory of Organic Chemistry, Wageningen University, P.O. Box 26, 6703 HB Wageningen (Niederlande)
| | - Han Zuilhof
- Laboratory of Organic Chemistry, Wageningen University, P.O. Box 26, 6703 HB Wageningen (Niederlande)
- Department of Chemical and Materials Engineering, King Abdulaziz University, Jeddah (Saudi‐Arabien)
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Russo L, Taraballi F, Lupo C, Poveda A, Jiménez-Barbero J, Sandri M, Tampieri A, Nicotra F, Cipolla L. Carbonate hydroxyapatite functionalization: a comparative study towards (bio)molecules fixation. Interface Focus 2014; 4:20130040. [PMID: 24501671 PMCID: PMC3886308 DOI: 10.1098/rsfs.2013.0040] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Different methods for the functionalization of carbonate hydroxyapatite granules with free amine groups by reaction with (3-aminopropyl)triethoxysilane (APTES) have been compared in order to improve the potential for tethering of bioactive molecules to bioceramics. The combined use of tetraethoxyorthosilicate and APTES with acid catalysis resulted in an evident increase in amine surface grafting.
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Affiliation(s)
- Laura Russo
- Department of Biotechnology and Biosciences, University of Milano-Bicocca, Piazza della Scienza 2, Milano 20126, Italy
| | - Francesca Taraballi
- Department of Biotechnology and Biosciences, University of Milano-Bicocca, Piazza della Scienza 2, Milano 20126, Italy
| | - Cristina Lupo
- Department of Biotechnology and Biosciences, University of Milano-Bicocca, Piazza della Scienza 2, Milano 20126, Italy
| | - Ana Poveda
- Servicio Interdepartamental de Investigación, University Autonoma of Madrid, Madrid 28049, Spain
| | - Jesús Jiménez-Barbero
- Department of Biotechnology and Biosciences, University of Milano-Bicocca, Piazza della Scienza 2, Milano 20126, Italy
- Department of Chemical and Phisical Biology, Centro de Invesigaciones Biológicas, CSIC, Ramiro de Maeztu 9, Madrid 28040, Spain
| | - Monica Sandri
- Institute of Science and Technology for Ceramics – National Research Council of Italy (ISTEC-CNR), Via Granarolo, 64, Faenza, Ravenna 48018, Italy
| | - Anna Tampieri
- Institute of Science and Technology for Ceramics – National Research Council of Italy (ISTEC-CNR), Via Granarolo, 64, Faenza, Ravenna 48018, Italy
| | - Francesco Nicotra
- Department of Biotechnology and Biosciences, University of Milano-Bicocca, Piazza della Scienza 2, Milano 20126, Italy
| | - Laura Cipolla
- Department of Biotechnology and Biosciences, University of Milano-Bicocca, Piazza della Scienza 2, Milano 20126, Italy
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Mahfoud OK, Rakovich TY, Prina-Mello A, Movia D, Alves F, Volkov Y. Detection of ErbB2: nanotechnological solutions for clinical diagnostics. RSC Adv 2014. [DOI: 10.1039/c3ra45401k] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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10
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Abstract
Silicon carbide (SiC) has been around for more than 100 years as an industrial material and has found wide and varied applications because of its unique electrical and thermal properties. In recent years there has been increased attention to SiC as a viable material for biomedical applications. Of particular interest in this review is its potential for application as a biotransducer in biosensors. Among these applications are those where SiC is used as a substrate material, taking advantage of its surface chemical, tribological and electrical properties. In addition, its potential for integration as system on a chip and those applications where SiC is used as an active material make it a suitable substrate for micro-device fabrication. This review highlights the critical properties of SiC for application as a biosensor and reviews recent work reported on using SiC as an active or passive material in biotransducers and biosensors.
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Belagodu T, Azhar EA, Yu H. Modulation of charge conduction in ZnO nanowires through selective surface molecular functionalization. NANOSCALE 2012; 4:7330-7333. [PMID: 23086401 DOI: 10.1039/c2nr31442h] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Two-terminal devices were fabricated using unintentionally doped Zinc Oxide (ZnO) nanowires (NW) grown via a chemical vapor deposition technique to study the influence of surface functionalization on their transport properties. Organic molecules with differing functional groups demonstrated contrasting effects on the charge transport of the nanowires depending on the polarity and orientation of the molecules.
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Affiliation(s)
- Tej Belagodu
- School of Electrical, Computer and Energy Engineering, Arizona State University, Tempe, AZ, USA
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