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Mohammed-Sadhakathullah AHM, Pashazadeh-Panahi P, Sek S, Armelin E, Torras J. Formation of sparsely tethered bilayer lipid membrane on a biodegradable self-assembled monolayer of poly(lactic acid). Bioelectrochemistry 2024; 159:108757. [PMID: 38851026 DOI: 10.1016/j.bioelechem.2024.108757] [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: 03/10/2024] [Revised: 06/02/2024] [Accepted: 06/03/2024] [Indexed: 06/10/2024]
Abstract
The utilization of biomimetic membranes supported by advanced self-assembled monolayers is gaining attraction as a promising sensing tool. Biomimetic membranes offer exceptional biocompatibility and adsorption capacity upon degradation, transcending their role as mere research instruments to open new avenues in biosensing. This study focused on anchoring a sparsely tethered bilayer lipid membrane onto a self-assembled monolayer composed of a biodegradable polymer, functionalized with poly(ethylene glycol)-cholesterol moieties, for lipid membrane integration. Real-time monitoring via quartz crystal microbalance, coupled with characterization using surface-enhanced infrared absorption spectroscopy and electrochemical impedance spectroscopy, provided comprehensive insights into each manufacturing phase. The resulting lipid layer, along with transmembrane pores formed by gramicidin A, exhibited robust stability. Electrochemical impedance spectroscopy analysis confirmed membrane integrity, successful pore formation, and consistent channel density. Notably, gramicidin A demonstrated sustained functionality as an ion channel upon reconstitution, with its functionality being effectively blocked and inhibited in the presence of calcium ions. These findings mark significant strides in developing intricate biodegradable nanomaterials with promising applications in biomedicine.
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Affiliation(s)
- Ahammed H M Mohammed-Sadhakathullah
- IMEM-BRT Group, Departament d'Enginyeria Química, EEBE, Universitat Politècnica de Catalunya, C/ Eduard Maristany, 10-14, Ed. I, 2nd Floor, 08019 Barcelona, Spain; Barcelona Research Center in Multiscale Science and Engineering, EEBE, Universitat Politècnica de Catalunya, C/ Eduard Maristany, 10-14, Basement S-1, 08019 Barcelona, Spain
| | - Paria Pashazadeh-Panahi
- Faculty of Chemistry, Biological and Chemical Research Centre, University of Warsaw, Zwirki i Wigury 101, 02-089 Warsaw, Poland
| | - Slawomir Sek
- Faculty of Chemistry, Biological and Chemical Research Centre, University of Warsaw, Zwirki i Wigury 101, 02-089 Warsaw, Poland.
| | - Elaine Armelin
- IMEM-BRT Group, Departament d'Enginyeria Química, EEBE, Universitat Politècnica de Catalunya, C/ Eduard Maristany, 10-14, Ed. I, 2nd Floor, 08019 Barcelona, Spain; Barcelona Research Center in Multiscale Science and Engineering, EEBE, Universitat Politècnica de Catalunya, C/ Eduard Maristany, 10-14, Basement S-1, 08019 Barcelona, Spain
| | - Juan Torras
- IMEM-BRT Group, Departament d'Enginyeria Química, EEBE, Universitat Politècnica de Catalunya, C/ Eduard Maristany, 10-14, Ed. I, 2nd Floor, 08019 Barcelona, Spain; Barcelona Research Center in Multiscale Science and Engineering, EEBE, Universitat Politècnica de Catalunya, C/ Eduard Maristany, 10-14, Basement S-1, 08019 Barcelona, Spain.
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2
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Savitha KS, Senthil Kumar M, Jagadish RL. Systematic approach in enhancing the selectivity of titanium tetrabutoxide towards high molecular weight poly(butylene succinate) synthesis. POLYM ADVAN TECHNOL 2023. [DOI: 10.1002/pat.6054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/09/2023]
Affiliation(s)
- K. S. Savitha
- Department of Polymer Science Sir M. Visvesvaraya Postgraduate Centre Mandya India
| | - M. Senthil Kumar
- Department of Chemistry Indian Institute of Technology Madras Chennai India
| | - R. L. Jagadish
- Department of Polymer Science Sir M. Visvesvaraya Postgraduate Centre Mandya India
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3
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Li S, Wu P, Ji Z, Zhang Y, Zhang P, He Y, Shen Y. In vitro biocompatibility study of EDC/NHS cross-linked silk fibroin scaffold with olfactory ensheathing cells. JOURNAL OF BIOMATERIALS SCIENCE. POLYMER EDITION 2023; 34:482-496. [PMID: 36285432 DOI: 10.1080/09205063.2022.2135076] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
In this paper, we investigated silk fibroin (SF) cross-linked by 1-ethyl-3-(3-dimethylaminopropyl) carbodiimide/N-hydroxysuccinimide (EDC/NHS) and its biocompatibility with olfactory ensheathing cells (OECs). After cross-linked with different concentrations of EDC/NHS solutions, SF scaffolds were analyzed by different techniques such as scanning electron microscopy, Fourier transform infrared spectra, x-ray diffraction, tensile machine and water contact angle assay. As to their structures, we found 4.5% EDC/NHS cross-linked SF possessed a more significant increase of β-sheet and a decrease of α-helix than 1.5% group. These changes helped SF achieve excellent mechanical properties. While more remarkable improvement of hydrophilicity was seen in 1.5% EDC/NHS treated SF. Immunofluorescence, MTT, Annexin-V/PI and ELISA analysis were then conducted to determine the states and functions of OECs on the scaffolds. OECs on 4.5% EDC/NHS cross-linked SF seemed insufficient to spread, and the proliferation was limited on 4 and 6 days. Moreover, 4.5% EDC/NHS exerted adverse effects on cell survival and nerve growth factor (NGF) secretion at day 4, but not 1.5% EDC/NHS. Taken together, SF scaffolds showed improved physical and hydrophilic properties through cross-linking. 1.5% EDC/NHS cross-linked SF scaffolds showed significant advantages between mechanical property and the states and functions with OECs, which has the potential to be used for neural repairing.
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Affiliation(s)
- Shengwen Li
- Department of Orthopedics, The Second Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China.,Second Department of Orthopaedics, Haining People's Hospital, Haining, Zhejiang, China
| | - Peng Wu
- Department of Orthopedics, The Second Hospital of Jingzhou, Jingzhou, Hubei, China
| | - Zhongqing Ji
- Department of Orthopedics, The Second Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China.,Department of Orthopedics, Yongding Hospital, Suzhou, Jiangsu, China
| | - Yu Zhang
- Department of Orthopedics, The Second Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China
| | - Peng Zhang
- Department of Orthopedics, The Second Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China
| | - Yongqing He
- Second Department of Orthopaedics, Haining People's Hospital, Haining, Zhejiang, China
| | - Yixin Shen
- Department of Orthopedics, The Second Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China
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Sun X, Shi K, Mo S, Mei J, Rong J, Wang S, Zheng X, Li Z. A sustainable reinforced-concrete-structured sponge for highly-recyclable oil adsorption. Sep Purif Technol 2023. [DOI: 10.1016/j.seppur.2022.122483] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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5
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Kim K, Son T, Hong JS, Kwak TJ, Jeong MH, Weissleder R, Im H. Physisorption of Affinity Ligands Facilitates Extracellular Vesicle Detection with Low Non-Specific Binding to Plasmonic Gold Substrates. ACS APPLIED MATERIALS & INTERFACES 2022; 14:10.1021/acsami.2c07317. [PMID: 35653580 PMCID: PMC9715849 DOI: 10.1021/acsami.2c07317] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
Plasmonic biosensors are increasingly being used for the analysis of extracellular vesicles (EVs) originating from disease areas. However, the high non-specific binding of EVs to a gold-sensing surface has been a critical problem and hindered the true translational potential. Here, we report that direct antibody immobilization on the plasmonic gold surface via physisorption shows excellent capture of cancer-derived EVs with ultralow non-specific binding even at very high concentrations. Contrary to commonly used methods that involve thiol-based linker attachment and an EDC/sulfo-NHS reaction, we show a higher specific capture rate and >50-fold lower non-specific on citrate-capped plain and nanopatterned gold surfaces. The method provides a simple, fast, and reproducible means to functionalize plasmonic gold surfaces with antibodies for robust EV biosensing.
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Affiliation(s)
- Kihyeun Kim
- Center for Systems Biology, Massachusetts General Hospital, Boston, MA, USA
| | - Taehwang Son
- Center for Systems Biology, Massachusetts General Hospital, Boston, MA, USA
| | - Jae-Sang Hong
- Center for Systems Biology, Massachusetts General Hospital, Boston, MA, USA
| | - Tae Joon Kwak
- Center for Systems Biology, Massachusetts General Hospital, Boston, MA, USA
| | - Mi Ho Jeong
- Center for Systems Biology, Massachusetts General Hospital, Boston, MA, USA
| | - Ralph Weissleder
- Center for Systems Biology, Massachusetts General Hospital, Boston, MA, USA
- Department of Radiology, Massachusetts General Hospital, Boston, MA, USA
- Cancer Center, Massachusetts General Hospital, Boston, MA 02114, USA
- Department of Systems Biology, Harvard Medical School, Boston, MA 02115, USA
| | - Hyungsoon Im
- Center for Systems Biology, Massachusetts General Hospital, Boston, MA, USA
- Department of Radiology, Massachusetts General Hospital, Boston, MA, USA
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6
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Lian J, Tang W, Yang Y, Vaidyanathan R, Gonçales VR, Arman SY, Tilley RD, Gooding JJ. A Transparent Semiconducting Surface for Capturing and Releasing Single Cells from a Complex Cell Mixture. ACS APPLIED MATERIALS & INTERFACES 2022; 14:18079-18086. [PMID: 35385656 DOI: 10.1021/acsami.1c23209] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Selective isolation of individual target cells from a heterogeneous population is technically challenging; however, the ability to retrieve single cells can have high significance in various aspects of biological research. Here, we present a new photoelectrochemical surface based on a transparent electrode that is compatible with high-resolution fluorescence microscopy for isolating individual rare cells from complex biological samples. This is underpinned by two important factors: (i) careful design of the electrode by patterning discrete Au disks of micron dimension on amorphous silicon-indium tin oxide films and (ii) orthogonal surface chemistry, which modifies the patterned electrode with self-assembly layers of different functionalities, to selectively capture target cells on the Au disks and resist cell binding to the amorphous silicon surface. The co-stimulation of the surface using light from a microscope and an electric potential triggers the reductive desorption of the alkanethiol monolayer from the Au disks to release the single cells of interest from the illuminated regions only. Using circulating tumor cells as a model, we demonstrate the capture of cancer cells on an antibody-coated surface and selective release of single cancer cells with low expression of epithelial cell adhesion molecules.
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Affiliation(s)
- Jiaxin Lian
- School of Chemistry, The University of New South Wales, Sydney, New South Wales 2052, Australia
- Australia Centre for NanoMedicine, The University of New South Wales, Sydney, New South Wales 2052, Australia
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, The University of New South Wales, Sydney, New South Wales 2052, Australia
| | - Wenxian Tang
- School of Chemistry, The University of New South Wales, Sydney, New South Wales 2052, Australia
- Australia Centre for NanoMedicine, The University of New South Wales, Sydney, New South Wales 2052, Australia
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, The University of New South Wales, Sydney, New South Wales 2052, Australia
| | - Ying Yang
- School of Chemistry, The University of New South Wales, Sydney, New South Wales 2052, Australia
- Australia Centre for NanoMedicine, The University of New South Wales, Sydney, New South Wales 2052, Australia
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, The University of New South Wales, Sydney, New South Wales 2052, Australia
| | - Ramanathan Vaidyanathan
- School of Chemistry, The University of New South Wales, Sydney, New South Wales 2052, Australia
| | - Vinicius R Gonçales
- School of Chemistry, The University of New South Wales, Sydney, New South Wales 2052, Australia
- Australia Centre for NanoMedicine, The University of New South Wales, Sydney, New South Wales 2052, Australia
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, The University of New South Wales, Sydney, New South Wales 2052, Australia
| | - Seyed Yousef Arman
- School of Chemistry, The University of New South Wales, Sydney, New South Wales 2052, Australia
- Australia Centre for NanoMedicine, The University of New South Wales, Sydney, New South Wales 2052, Australia
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, The University of New South Wales, Sydney, New South Wales 2052, Australia
| | - Richard D Tilley
- School of Chemistry, The University of New South Wales, Sydney, New South Wales 2052, Australia
- Electron Microscope Unit, Mark Wainwright Analytical Centre, The University of New South Wales, Sydney, New South Wales 2052, Australia
| | - J Justin Gooding
- School of Chemistry, The University of New South Wales, Sydney, New South Wales 2052, Australia
- Australia Centre for NanoMedicine, The University of New South Wales, Sydney, New South Wales 2052, Australia
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, The University of New South Wales, Sydney, New South Wales 2052, Australia
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7
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Soares da Silva ML. Ferrocene‐derivative Electrochemical Probe for the Selective Detection of Carcinoma‐associated STn Antigen. ELECTROANAL 2021. [DOI: 10.1002/elan.202100352] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Maria Luísa Soares da Silva
- Centro de Investigaciones Químicas Universidad Autónoma del Estado de Hidalgo Carr. Pachuca-Tulancingo km 4.5 42076 Pachuca Hidalgo México
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8
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Chemical Modification of Glycosaminoglycan Polysaccharides. Molecules 2021; 26:molecules26175211. [PMID: 34500644 PMCID: PMC8434129 DOI: 10.3390/molecules26175211] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2021] [Revised: 08/20/2021] [Accepted: 08/21/2021] [Indexed: 12/16/2022] Open
Abstract
The linear anionic class of polysaccharides, glycosaminoglycans (GAGs), are critical throughout the animal kingdom for developmental processes and the maintenance of healthy tissues. They are also of interest as a means of influencing biochemical processes. One member of the GAG family, heparin, is exploited globally as a major anticoagulant pharmaceutical and there is a growing interest in the potential of other GAGs for diverse applications ranging from skin care to the treatment of neurodegenerative conditions, and from the treatment and prevention of microbial infection to biotechnology. To realize the potential of GAGs, however, it is necessary to develop effective tools that are able to exploit the chemical manipulations to which GAGs are susceptible. Here, the current knowledge concerning the chemical modification of GAGs, one of the principal approaches for the study of the structure-function relationships in these molecules, is reviewed. Some additional methods that were applied successfully to the analysis and/or processing of other carbohydrates, but which could be suitable in GAG chemistry, are also discussed.
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9
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Mo S, Mei J, Liang Q, Li Z. Repeatable oil-water separation with a highly-elastic and tough amino-terminated polydimethylsiloxane-based sponge synthesized using a self-foaming method. CHEMOSPHERE 2021; 271:129827. [PMID: 33736215 DOI: 10.1016/j.chemosphere.2021.129827] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/15/2020] [Revised: 01/22/2021] [Accepted: 01/29/2021] [Indexed: 06/12/2023]
Abstract
A 3D porous sponge based on amino-terminated polydimethylsiloxane (PDMS) and graphene oxide (GO) was prepared using a simple one-pot method under mild conditions. Condensing agents combined GO and PDMS with covalent bonds, and simultaneously acted as the pore-foaming agents. Scanning electron microscopy and Mercury intrusion porosimetry revealed that the joint action of GO and condensing agents contributes to the formation of the porous structure. Cyclic compression demonstrated high toughness and elasticity. No deformation occurs after 20 compression cycles at over 80% strain, owing to the assistance of dynamic hydrogen bonds. GO content significantly influences the mechanical strength, hydrophobicity, as well as adsorption capacity for oil. Notably, the sponge can be repeatedly used with a simple squeezing method, and the adsorption capacity can still reach 96.30% of the first adsorption after 30 cycles of adsorption. Besides, the sponge was used to adsorb oil on the seawater surface experimentally. The stable structure, high mechanical strength, and excellent adsorption property suggest the sponge be a promising material for the treatment of oil leakage and oily wastewater purification in practice. This self-foaming method can be a common method for fabricating porous and stable porous materials.
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Affiliation(s)
- Siqi Mo
- School of Environmental and Safety Engineering, Changzhou University, Changzhou, 213164, PR China
| | - Jinfeng Mei
- School of Environmental and Safety Engineering, Changzhou University, Changzhou, 213164, PR China.
| | - Qian Liang
- School of Petrochemical Engineering, Changzhou University, Changzhou, 213164, PR China
| | - Zhongyu Li
- School of Environmental and Safety Engineering, Changzhou University, Changzhou, 213164, PR China; School of Petrochemical Engineering, Changzhou University, Changzhou, 213164, PR China.
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10
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Heo J, Ahn H, Won J, Son JG, Shon HK, Lee TG, Han SW, Baik MH. Electro-inductive effect: Electrodes as functional groups with tunable electronic properties. Science 2020; 370:214-219. [DOI: 10.1126/science.abb6375] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2020] [Accepted: 08/21/2020] [Indexed: 01/29/2023]
Abstract
In place of functional groups that impose different inductive effects, we immobilize molecules carrying thiol groups on a gold electrode. By applying different voltages, the properties of the immobilized molecules can be tuned. The base-catalyzed saponification of benzoic esters is fully inhibited by applying a mildly negative voltage of –0.25 volt versus open circuit potential. Furthermore, the rate of a Suzuki-Miyaura cross-coupling reaction can be changed by applying a voltage when the arylhalide substrate is immobilized on a gold electrode. Finally, a two-step carboxylic acid amidation is shown to benefit from a switch in applied voltage between addition of a carbodiimide coupling reagent and introduction of the amine.
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Affiliation(s)
- Joon Heo
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
- Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon 34141, Republic of Korea
| | - Hojin Ahn
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
| | - Joonghee Won
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
- Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon 34141, Republic of Korea
| | - Jin Gyeong Son
- Center for Nano-Bio Measurement, Korea Research Institute of Standards and Science (KRISS), Daejeon 34113, Republic of Korea
| | - Hyun Kyong Shon
- Center for Nano-Bio Measurement, Korea Research Institute of Standards and Science (KRISS), Daejeon 34113, Republic of Korea
| | - Tae Geol Lee
- Center for Nano-Bio Measurement, Korea Research Institute of Standards and Science (KRISS), Daejeon 34113, Republic of Korea
| | - Sang Woo Han
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
| | - Mu-Hyun Baik
- Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon 34141, Republic of Korea
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
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11
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Qi Y, Wang Y, Chen C, Zhao C, Ma Y, Yang W. Facile Surface Functionalization of Cyclic Olefin Copolymer Film with Anhydride Groups for Protein Microarray Fabrication. ACS APPLIED BIO MATERIALS 2020; 3:3203-3209. [PMID: 35025362 DOI: 10.1021/acsabm.0c00200] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Immobilization of protein at high efficiency is a challenge for fabricating polymer-based protein chips. Here, a simple but effective approach was developed to fabricate a cyclic olefin copolymer (COC)-based protein microarray with a high immobilization density. In this strategy, poly(maleic anhydride-co-vinyl acetate) (poly(MAH-co-VAc)) brushes were facilely attached on the COC surface via UV-induced graft copolymerization. The introduction of poly(MAH-co-VAc) brushes resulted in an obvious increase in the surface roughness of COC. The functionalized COC showed little reduction in transparency compared with pristine COC, indicating that the photografting treatment did not alter its optical property. The graft density of the anhydride groups on the modified COC could be tuned from 0.46 to 3.2 μmol/cm2. The immobilization efficiency of immunoglobulin G (IgG) on functionalized COC reached 88% due to the high reactivity between anhydride groups and amine groups of IgGs. An immunoassay experiment demonstrated that the microarray showed high sensitivity to the target analyte.
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12
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Shepherd JL, Clément J, McGillivary L. Friction titration measurements of electrochemically generated mixed alkylthiol monolayers on polycrystalline gold. Electrochim Acta 2020. [DOI: 10.1016/j.electacta.2020.135937] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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13
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Chen LC, Wang E, Tai CS, Chiu YC, Li CW, Lin YR, Lee TH, Huang CW, Chen JC, Chen WL. Improving the reproducibility, accuracy, and stability of an electrochemical biosensor platform for point-of-care use. Biosens Bioelectron 2020; 155:112111. [PMID: 32217334 DOI: 10.1016/j.bios.2020.112111] [Citation(s) in RCA: 49] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2019] [Revised: 02/12/2020] [Accepted: 02/18/2020] [Indexed: 11/15/2022]
Abstract
Electrochemical biosensors possess numerous desirable qualities for target detection, such as portability and ease of use, and are often considered for point-of-care (POC) development. Label-free affinity electrochemical biosensors constructed with semiconductor manufacturing technology (SMT)-produced electrodes and a streptavidin biomediator currently display the highest reproducibility, accuracy, and stability in modern biosensors. However, such biosensors still do not meet POC guidelines regarding these three characteristics. The purpose of this research was to resolve the limitations in reproducibility and accuracy caused by problems with production of the biosensors, with the aim of developing a platform capable of producing devices that exceed POC standards. SMT production settings were optimized and bioreceptor immobilization was improved through the use of a unique linker, producing a biosensor with exceptional reproducibility, impressive accuracy, and high stability. Importantly, the three characteristics of the sensors produced using the proposed platform all meet POC standards set by the Clinical and Laboratory Standards Institute (CLSI). This suggests possible approval of the biosensors for POC development. Furthermore, the detection range of the platform was demonstrated by constructing biosensors capable of detecting common POC targets, including circulating tumor cells (CTCs), DNA/RNA, and curcumin, and the devices were optimized for POC use. Overall, the platform developed in this study shows high potential for production of POC biosensors.
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Affiliation(s)
- Lung-Chieh Chen
- Department of Biological Science and Technology, National Chiao Tung University, Hsinchu, Taiwan; Institute of Molecular Medicine and Bioengineering, National Chiao Tung University, Hsinchu, Taiwan
| | - Erick Wang
- Department of Biological Science and Technology, National Chiao Tung University, Hsinchu, Taiwan
| | - Chun-San Tai
- Department of Biological Science and Technology, National Chiao Tung University, Hsinchu, Taiwan; Institute of Molecular Medicine and Bioengineering, National Chiao Tung University, Hsinchu, Taiwan
| | - Yuan-Chen Chiu
- Department of Biological Science and Technology, National Chiao Tung University, Hsinchu, Taiwan; Institute of Molecular Medicine and Bioengineering, National Chiao Tung University, Hsinchu, Taiwan
| | - Chang-Wei Li
- Department of Biological Science and Technology, National Chiao Tung University, Hsinchu, Taiwan; AllBio Life Inc, Taichung, Taiwan
| | - Yan-Ren Lin
- Department of Emergency Medicine, Changhua Christian Hospital, Changhua, Taiwan; School of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan; School of Medicine, Chung Shan Medical University, Taichung, Taiwan
| | - Tsung-Han Lee
- Department of Biological Science and Technology, National Chiao Tung University, Hsinchu, Taiwan; Department of Emergency Medicine, Changhua Christian Hospital, Changhua, Taiwan
| | - Ching-Wen Huang
- Department of Biological Science and Technology, National Chiao Tung University, Hsinchu, Taiwan; Department of Emergency, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan; Division of Thoracic Surgery, Department of Surgery, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Jung-Chih Chen
- Department of Biological Science and Technology, National Chiao Tung University, Hsinchu, Taiwan; Institute of Biomedical Engineering, National Chiao Tung University, Hsinchu, Taiwan
| | - Wen Liang Chen
- Department of Biological Science and Technology, National Chiao Tung University, Hsinchu, Taiwan.
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14
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Preparation of an integrated porous substrate of 11-mercaptoundecanoic acid and chitosan on gold for electrochemical study of pores and pore forming interactions in lipid bilayers. Electrochim Acta 2020. [DOI: 10.1016/j.electacta.2019.135174] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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15
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Dewangan L, Korram J, Karbhal I, Nagwanshi R, Jena VK, Satnami ML. A colorimetric nanoprobe based on enzyme-immobilized silver nanoparticles for the efficient detection of cholesterol. RSC Adv 2019; 9:42085-42095. [PMID: 35542852 PMCID: PMC9076569 DOI: 10.1039/c9ra08328f] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2019] [Accepted: 12/05/2019] [Indexed: 12/15/2022] Open
Abstract
A large number of cardiovascular diseases have recently become of serious concern throughout the world. Herein, we developed a colorimetric probe based on functionalized silver nanoparticles (AgNPs) for the efficient sensing of cholesterol, an important cardiovascular risk marker. A simple sodium borohydride reduction method was employed to synthesize the AgNPs. The cholesterol oxidase (ChOx)-immobilized AgNPs interact with free cholesterol to produce H2O2 in proportion to the concentration of cholesterol, resulting in decreased AgNP absorbance (turn-off) at 400 nm due to electron transfer between the AgNPs and H2O2. The response of the sensor can also be observed visually. The absorption intensity of the AgNPs is recovered (turn-on) upon the addition of sodium dodecyl sulfate due to the inhibition of ChOx. This on–off mechanism was effectively applied to detect cholesterol within the concentration range 10–250 nM with a low detection limit of approximately 0.014 nM. Moreover, the selectivity of the sensor toward cholesterol was analyzed in the presence of a range of interfering organic substances such as glucose, urea, and sucrose. Finally, the potential of the proposed sensor was evaluated using real samples. A functionalized silver nanoparticle (AgNP) based colorimetric probe have been developed for efficient sensing of cholesterol, most important cardio-risk-marker.![]()
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Affiliation(s)
- Lakshita Dewangan
- School of Studies in Chemistry, Pt. Ravishankar Shukla University Raipur C.G. India-492010
| | - Jyoti Korram
- School of Studies in Chemistry, Pt. Ravishankar Shukla University Raipur C.G. India-492010
| | - Indrapal Karbhal
- School of Studies in Chemistry, Pt. Ravishankar Shukla University Raipur C.G. India-492010
| | - Rekha Nagwanshi
- Department of Chemistry, Govt. Madhav Science P. G. College Ujjain M.P. India-456010
| | - Vinod K Jena
- Department of Chemistry, Govt. Nagarjuna P. G. College of Science Raipur C.G. India-492010
| | - Manmohan L Satnami
- School of Studies in Chemistry, Pt. Ravishankar Shukla University Raipur C.G. India-492010
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16
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Zhang J, Yeromonahos C, Léonard D, Géhin T, Botella C, Grenet G, Benamrouche A, Penuelas J, Monfray S, Chevolot Y, Cloarec JP. Oxidized Titanium Tungsten Surface Functionalization by Silane-, Phosphonic Acid-, or Ortho-dihydroxyaryl-Based Organolayers. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:9554-9563. [PMID: 31290675 DOI: 10.1021/acs.langmuir.8b04150] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Titanium tungsten (TiW) films (200 nm thick) were cleaned by oxygen plasma, and the resulting oxidized surfaces were functionalized by 3-aminopropylphosphonic acid (APPA), 3-ethoxydimethylsilylpropylamine (APDMES), or dopamine (DA) to form three different organolayers. The three resulting organolayers were characterized by X-ray photoelectron spectroscopy, time-of-flight secondary ion mass spectrometry, and Fourier transform infrared spectroscopy analyses. The stability of each organolayer was investigated. Our results suggested that the Si-O-Ti or Si-O-W bonds formed by the reactions of APDMES with surface-oxidized TiW were rather labile, whereas the catechol layer was less labile. The APPA layer was the most stable of all tested surface modifications.
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Affiliation(s)
- Jian Zhang
- Université de Lyon, Institut des Nanotechnologies de Lyon (INL)-UMR CNRS 5270, Ecole Centrale de Lyon , 36 Avenue Guy de Collongue , 69134 Ecully cedex, France
| | - Christelle Yeromonahos
- Université de Lyon, Institut des Nanotechnologies de Lyon (INL)-UMR CNRS 5270, Ecole Centrale de Lyon , 36 Avenue Guy de Collongue , 69134 Ecully cedex, France
| | - Didier Léonard
- Univ Lyon, CNRS, Université Claude Bernard Lyon 1, ENS de Lyon, Institut des Sciences Analytiques, UMR 5280 , 5, rue de la Doua , F-69100 Villeurbanne , France
| | - Thomas Géhin
- Université de Lyon, Institut des Nanotechnologies de Lyon (INL)-UMR CNRS 5270, Ecole Centrale de Lyon , 36 Avenue Guy de Collongue , 69134 Ecully cedex, France
| | - Claude Botella
- Université de Lyon, Institut des Nanotechnologies de Lyon (INL)-UMR CNRS 5270, Ecole Centrale de Lyon , 36 Avenue Guy de Collongue , 69134 Ecully cedex, France
| | - Geneviève Grenet
- Université de Lyon, Institut des Nanotechnologies de Lyon (INL)-UMR CNRS 5270, Ecole Centrale de Lyon , 36 Avenue Guy de Collongue , 69134 Ecully cedex, France
| | - Aziz Benamrouche
- Université de Lyon, Institut des Nanotechnologies de Lyon (INL)-UMR CNRS 5270, Ecole Centrale de Lyon , 36 Avenue Guy de Collongue , 69134 Ecully cedex, France
| | - José Penuelas
- Université de Lyon, Institut des Nanotechnologies de Lyon (INL)-UMR CNRS 5270, Ecole Centrale de Lyon , 36 Avenue Guy de Collongue , 69134 Ecully cedex, France
| | - Stéphane Monfray
- STMicroelectronics SA , 850, rue Jean Monnet , 38926 Crolles , France
| | - Yann Chevolot
- Université de Lyon, Institut des Nanotechnologies de Lyon (INL)-UMR CNRS 5270, Ecole Centrale de Lyon , 36 Avenue Guy de Collongue , 69134 Ecully cedex, France
| | - Jean-Pierre Cloarec
- Université de Lyon, Institut des Nanotechnologies de Lyon (INL)-UMR CNRS 5270, Ecole Centrale de Lyon , 36 Avenue Guy de Collongue , 69134 Ecully cedex, France
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17
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Lacour V, Moumanis K, Hassen WM, Elie-Caille C, Leblois T, Dubowski JJ. Formation Kinetics of Mixed Self-Assembled Monolayers of Alkanethiols on GaAs(100). LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:4415-4427. [PMID: 29056049 DOI: 10.1021/acs.langmuir.7b00929] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
We report on the formation kinetics of mixed self-assembled monolayers (SAMs) comprising 16-mercaptohexadecanoic acid (MHDA) and 11-mercapto-1-undecanol (MUDO) thiols on GaAs(100) substrates. These compounds were selected for their potential in constructing highly selective and efficient architectures for biosensing applications. The molecular composition and quality of one-compound and mixed SAMs were determined by the Fourier transform infrared absorption spectroscopy measurements. The formation of enhanced-quality mixed SAMs was investigated as a function of the molecular composition of the thiol mixture and the proportion of ethanol/water solvent used during their arrangement. Furthermore, the formation of mixed SAMs has been carried out by successive immersion of MHDA SAMs in MUDO thiol solutions and MUDO SAMs in MHDA thiol solution through the process involving thiol-thiol substitution. Our results, in addition to confirming that water-ethanol-based solvents improve the packing density of single thiol monolayers, demonstrate the attractive role of water-ethanol solvents in forming superior quality mixed SAMs.
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Affiliation(s)
- Vivien Lacour
- Laboratory for Quantum Semiconductors and Photon-Based BioNanotechnology, Interdisciplinary Institute for Technological Innovation (3IT), CNRS UMI-3463, 3000 boul. de l'Université, Université de Sherbrooke , Sherbrooke , Québec J1K 0A5 , Canada
- FEMTO-ST Institute, CNRS UMR-6174, Université de Bourgogne Franche-Comté , 15B, Av des Montboucons , 25030 Besançon , France
| | - Khalid Moumanis
- Laboratory for Quantum Semiconductors and Photon-Based BioNanotechnology, Interdisciplinary Institute for Technological Innovation (3IT), CNRS UMI-3463, 3000 boul. de l'Université, Université de Sherbrooke , Sherbrooke , Québec J1K 0A5 , Canada
| | - Walid M Hassen
- Laboratory for Quantum Semiconductors and Photon-Based BioNanotechnology, Interdisciplinary Institute for Technological Innovation (3IT), CNRS UMI-3463, 3000 boul. de l'Université, Université de Sherbrooke , Sherbrooke , Québec J1K 0A5 , Canada
| | - Céline Elie-Caille
- FEMTO-ST Institute, CNRS UMR-6174, Université de Bourgogne Franche-Comté , 15B, Av des Montboucons , 25030 Besançon , France
| | - Thérèse Leblois
- FEMTO-ST Institute, CNRS UMR-6174, Université de Bourgogne Franche-Comté , 15B, Av des Montboucons , 25030 Besançon , France
| | - Jan J Dubowski
- Laboratory for Quantum Semiconductors and Photon-Based BioNanotechnology, Interdisciplinary Institute for Technological Innovation (3IT), CNRS UMI-3463, 3000 boul. de l'Université, Université de Sherbrooke , Sherbrooke , Québec J1K 0A5 , Canada
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18
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Nguyen AH, Deutsch JM, Xiao L, Schultz ZD. Online Liquid Chromatography-Sheath-Flow Surface Enhanced Raman Detection of Phosphorylated Carbohydrates. Anal Chem 2018; 90:11062-11069. [PMID: 30119606 DOI: 10.1021/acs.analchem.8b02907] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Online detection and quantification of three phosphorylated carbohydrate molecules: glucose 1-phosphate, glucose 6-phosphate, and fructose 6-phosphate was achieved by coupling sheath-flow surface enhanced Raman spectroscopy (SERS) to liquid chromatography. The presence of an alkanethiol (hexanethiol) self-assembled monolayer adsorbed to a silver SERS-active substrate helps retain and concentrate the analytes of interest at the SERS substrate to improve the detection sensitivity significantly. Mixtures of 2 μM of phosphorylated carbohydrates in pure water as well as in cell culture media were successfully separated by HPLC, with identification using the sheath-flow SERS detector. The quantification of each analyte was achieved using partial least-squares (PLS) regression analysis and acetonitrile in the mobile phases as an internal standard. These results illustrate the utility of sheath-flow SERS for molecular specific detection in complex biological samples appropriate for metabolomics and other applications.
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Affiliation(s)
- Anh H Nguyen
- Department of Chemistry and Biochemistry , University of Notre Dame , Notre Dame , Indiana 46556 , United States
| | - Jessica M Deutsch
- Department of Chemistry and Biochemistry , University of Notre Dame , Notre Dame , Indiana 46556 , United States
| | - Lifu Xiao
- Department of Chemistry and Biochemistry , The Ohio State University , Columbus , Ohio 43210 , United States
| | - Zachary D Schultz
- Department of Chemistry and Biochemistry , University of Notre Dame , Notre Dame , Indiana 46556 , United States.,Department of Chemistry and Biochemistry , The Ohio State University , Columbus , Ohio 43210 , United States
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19
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Abstract
Redox enzymes, which catalyze reactions involving electron transfers in living organisms, are very promising components of biotechnological devices, and can be envisioned for sensing applications as well as for energy conversion. In this context, one of the most significant challenges is to achieve efficient direct electron transfer by tunneling between enzymes and conductive surfaces. Based on various examples of bioelectrochemical studies described in the recent literature, this review discusses the issue of enzyme immobilization at planar electrode interfaces. The fundamental importance of controlling enzyme orientation, how to obtain such orientation, and how it can be verified experimentally or by modeling are the three main directions explored. Since redox enzymes are sizable proteins with anisotropic properties, achieving their functional immobilization requires a specific and controlled orientation on the electrode surface. All the factors influenced by this orientation are described, ranging from electronic conductivity to efficiency of substrate supply. The specificities of the enzymatic molecule, surface properties, and dipole moment, which in turn influence the orientation, are introduced. Various ways of ensuring functional immobilization through tuning of both the enzyme and the electrode surface are then described. Finally, the review deals with analytical techniques that have enabled characterization and quantification of successful achievement of the desired orientation. The rich contributions of electrochemistry, spectroscopy (especially infrared spectroscopy), modeling, and microscopy are featured, along with their limitations.
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20
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Covalently electrografted carboxyphenyl layers onto gold surface serving as a platform for the construction of an immunosensor for detection of methotrexate. J Electroanal Chem (Lausanne) 2018. [DOI: 10.1016/j.jelechem.2017.12.072] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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21
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Shen L, Qi X, Nie K. Synthesis of a novel tripod BODIPY dye bearing N-hydroxysuccinimide ester and its amidation. SYNTHETIC COMMUN 2018. [DOI: 10.1080/00397911.2017.1397697] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Lin Shen
- College of Material Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing, PR China
| | - Xin Qi
- College of Material Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing, PR China
| | - Kaiqiang Nie
- College of Material Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing, PR China
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22
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Wang X, Song L, Zhao J, Zhou R, Luan S, Huang Y, Yin J, Khan A. Bacterial adaptability of enzyme and pH dual-responsive surface for infection resistance. J Mater Chem B 2018; 6:7710-7718. [DOI: 10.1039/c8tb01950a] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
A major challenge in antibacterial surface preparation is the elaborated implement of controlled antibacterial agent delivery on demand. We present a bacterial hyaluronidase (HAase) and pH dual-responsive antimicrobial surface, with excellent biocompatibility under physiological conditions and releasing vancomycin (Van) once bacteria invade.
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Affiliation(s)
- Xianghong Wang
- State Key Laboratory of Polymer Physics and Chemistry
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun 130022
- China
| | - Lingjie Song
- State Key Laboratory of Polymer Physics and Chemistry
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun 130022
- China
| | - Jie Zhao
- Key Laboratory of Bionic Engineering
- Ministry of Education
- Jilin University
- Changchun 130022
- China
| | - Rongtao Zhou
- State Key Laboratory of Polymer Physics and Chemistry
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun 130022
- China
| | - Shifang Luan
- State Key Laboratory of Polymer Physics and Chemistry
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun 130022
- China
| | - Yubin Huang
- State Key Laboratory of Polymer Physics and Chemistry
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun 130022
- China
| | - Jinghua Yin
- State Key Laboratory of Polymer Physics and Chemistry
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun 130022
- China
| | - AtherFarooq Khan
- Interdisciplinary Research Centre in Biomedical Materials
- COMSATS Institute of Information Technology
- Lahore 54000
- Pakistan
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23
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Lísalová H, Brynda E, Houska M, Víšová I, Mrkvová K, Song XC, Gedeonová E, Surman F, Riedel T, Pop-Georgievski O, Homola J. Ultralow-Fouling Behavior of Biorecognition Coatings Based on Carboxy-Functional Brushes of Zwitterionic Homo- and Copolymers in Blood Plasma: Functionalization Matters. Anal Chem 2017; 89:3524-3531. [PMID: 28233990 DOI: 10.1021/acs.analchem.6b04731] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Fouling from complex biological fluids such as blood plasma to biorecognition element (BRE)-functionalized coatings hampers the use of affinity biosensor technologies in medical diagnostics. Here, we report the effects the molecular mechanisms involved in functionalization of low-fouling carboxy-functional coatings have on the BRE capacity and resistance to fouling from blood plasma. The specific mechanisms of EDC/NHS activation of carboxy groups, BRE attachment, and deactivation of residual activated groups on recently developed ultra-low-fouling carboxybetaine polymer and copolymer brushes (pCB) as well as conventional carboxy-terminated oligo(ethylene glycol)-based alkanethiolate self-assembled monolayers (OEG-SAMs) are studied using the polarization modulation infrared reflection/absorption spectroscopy, X-ray photoelectron spectroscopy, and surface plasmon resonance methods. It is shown that the fouling resistance of BRE-functionalized pCB coatings is strongly influenced by a deactivation method affecting the ultra-low-fouling molecular structure of the brush and surface charges. It is revealed that, in contrast to free carboxy-group-terminated OEG-SAMs, only a partial deactivation of EDC/NHS-activated zwitterionic carboxy groups by spontaneous hydrolysis is possible in the pCB brushes. The fouling resistance of activated/BRE-functionalized pCB is shown to be recovered only by covalent attachment of amino acid deactivation agents to residual activated carboxy groups of pCB. The developed deactivation procedure is further combined with ultra-low-fouling brushes of random copolymer carboxybetaine methacrylamide (CBMAA) and N-(2-hydroxypropyl) methacrylamide (HPMAA) with optimized CBMAA content (15%) providing a BRE-functionalized coating with superior fouling resistance over various carboxy-functional low-fouling coatings including homopolymer pCB brushes and OEG-SAMs. The biorecognition capabilities of pHPMAA-CBMAA(15%) are demonstrated via the sensitive label-free detection of a microRNA cancer biomarker (miR-16) in blood plasma.
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Affiliation(s)
- Hana Lísalová
- Institute of Photonics and Electronics, Czech Academy of Sciences , Chaberská 57, Prague 182 51, Czech Republic
| | - Eduard Brynda
- Institute of Macromolecular Chemistry, Czech Academy of Sciences , Heyrovského nám. 2, Prague 162 00, Czech Republic
| | - Milan Houska
- Institute of Macromolecular Chemistry, Czech Academy of Sciences , Heyrovského nám. 2, Prague 162 00, Czech Republic
| | - Ivana Víšová
- Institute of Photonics and Electronics, Czech Academy of Sciences , Chaberská 57, Prague 182 51, Czech Republic
| | - Kateřina Mrkvová
- Institute of Photonics and Electronics, Czech Academy of Sciences , Chaberská 57, Prague 182 51, Czech Republic
| | - Xue Chadtová Song
- Institute of Photonics and Electronics, Czech Academy of Sciences , Chaberská 57, Prague 182 51, Czech Republic
| | - Erika Gedeonová
- Institute of Photonics and Electronics, Czech Academy of Sciences , Chaberská 57, Prague 182 51, Czech Republic
| | - František Surman
- Institute of Macromolecular Chemistry, Czech Academy of Sciences , Heyrovského nám. 2, Prague 162 00, Czech Republic
| | - Tomáš Riedel
- Institute of Macromolecular Chemistry, Czech Academy of Sciences , Heyrovského nám. 2, Prague 162 00, Czech Republic
| | - Ognen Pop-Georgievski
- Institute of Macromolecular Chemistry, Czech Academy of Sciences , Heyrovského nám. 2, Prague 162 00, Czech Republic
| | - Jiří Homola
- Institute of Photonics and Electronics, Czech Academy of Sciences , Chaberská 57, Prague 182 51, Czech Republic
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24
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Yu ZL, Yang CWT, Triffaux E, Doneux T, Turner RFB, Bizzotto D. Measuring and Remediating Nonspecific Modifications of Gold Surfaces Using a Coupled in Situ Electrochemical Fluorescence Microscopic Methodology. Anal Chem 2016; 89:886-894. [DOI: 10.1021/acs.analchem.6b03953] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
- Zhinan Landis Yu
- AMPEL,
Department of Chemistry, The University of British Columbia, Vancouver, British Columbia V6T 1Z4, Canada
| | - Cheng Wei Tony Yang
- Michael
Smith Laboratories, The University of British Columbia, Vancouver, British Columbia V6T 1Z4, Canada
- Department
of Chemical and Biological Engineering, The University of British Columbia, Vancouver, British Columbia V6T 1Z3, Canada
| | - Eleonore Triffaux
- Chimie
Analytique et Chimie des Interfaces, Faculté des Sciences, Université libre de Bruxelles (ULB), 1050 Bruxelles, Belgium
| | - Thomas Doneux
- Chimie
Analytique et Chimie des Interfaces, Faculté des Sciences, Université libre de Bruxelles (ULB), 1050 Bruxelles, Belgium
| | - Robin F. B. Turner
- Michael
Smith Laboratories, The University of British Columbia, Vancouver, British Columbia V6T 1Z4, Canada
- Department
of Electrical and Computer Engineering, The University of British Columbia, Vancouver, British Columbia V6T 1Z4, Canada
| | - Dan Bizzotto
- AMPEL,
Department of Chemistry, The University of British Columbia, Vancouver, British Columbia V6T 1Z4, Canada
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25
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Hashizume M, Fukagawa S, Mishima S, Osuga T, Iijima K. Hot-Press-Assisted Adhesions between Polyimide Films and Titanium Plates Utilizing Coating Layers of Silane Coupling Agents. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2016; 32:12344-12351. [PMID: 27359165 DOI: 10.1021/acs.langmuir.6b01657] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
The development of low material-consuming adhesion techniques for different kinds of materials such as polymers and metals is important for the realization of sustainable societies. This study demonstrates that coating layers, expected to be formed as self-assembled monolayers, of silane coupling agents can act as adhesion layers at the polymer film-metal plate interfaces. Polyimide films were alkaline hydrolyzed to generate carboxy groups on their surfaces, whereas titanium plate surfaces were treated with the aminosilanes to form their coating layers thereon. These modified surfaces were placed in contact with each other and then hot pressed, which resulted in adhesion between them. An examination of the adhesion strength using lap shear tests and surface characterization of the prepared surfaces using X-ray photoelectron spectroscopy and other techniques indicated the formation of ionic bonds and/or amide bonds between the carboxy groups of the PI film surfaces and the amino groups immobilized on the titanium plate surfaces. The activation of the carboxy groups using N-hydroxysuccinimide resulted in adhesion obtaining a water-resistant property, which supported the increase in amide bond formation. On the basis of the results, the adhesion mechanism and the possible breaking points upon the breaking of adhesions are proposed.
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Affiliation(s)
- Mineo Hashizume
- Department of Industrial Chemistry, Faculty of Engineering and ‡Graduate School of Chemical Sciences and Technology, Tokyo University of Science , 12-1 Ichigayafunagawara-machi, Shinjuku-ku, Tokyo 162-0826, Japan
| | - Soichiro Fukagawa
- Department of Industrial Chemistry, Faculty of Engineering and ‡Graduate School of Chemical Sciences and Technology, Tokyo University of Science , 12-1 Ichigayafunagawara-machi, Shinjuku-ku, Tokyo 162-0826, Japan
| | - Shoko Mishima
- Department of Industrial Chemistry, Faculty of Engineering and ‡Graduate School of Chemical Sciences and Technology, Tokyo University of Science , 12-1 Ichigayafunagawara-machi, Shinjuku-ku, Tokyo 162-0826, Japan
| | - Takumi Osuga
- Department of Industrial Chemistry, Faculty of Engineering and ‡Graduate School of Chemical Sciences and Technology, Tokyo University of Science , 12-1 Ichigayafunagawara-machi, Shinjuku-ku, Tokyo 162-0826, Japan
| | - Kazutoshi Iijima
- Department of Industrial Chemistry, Faculty of Engineering and ‡Graduate School of Chemical Sciences and Technology, Tokyo University of Science , 12-1 Ichigayafunagawara-machi, Shinjuku-ku, Tokyo 162-0826, Japan
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26
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Hua J, Li Z, Xia W, Yang N, Gong J, Zhang J, Qiao C. Preparation and properties of EDC/NHS mediated crosslinking poly (gamma-glutamic acid)/epsilon-polylysine hydrogels. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 61:879-92. [PMID: 26838920 DOI: 10.1016/j.msec.2016.01.001] [Citation(s) in RCA: 86] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/06/2015] [Revised: 12/02/2015] [Accepted: 01/03/2016] [Indexed: 02/05/2023]
Abstract
In this paper, a novel pH-sensitive poly (amino acid) hydrogel based on poly γ-glutamic acid (γ-PGA) and ε-polylysine (ε-PL) was prepared by carbodiimide (EDC) and N-hydroxysuccinimide (NHS) mediated polymerization. The influence of PGA/PL molar ratio and EDC/NHS concentration on the structure and properties was studied. Fourier transform infrared spectroscopy (FT-IR) and X-ray photoelectron spectroscopy (XPS) proved that hydrogels were crosslinked through amide bond linkage, and the conversion rate of a carboxyl group could reach 96%. Scanning electron microscopy (SEM) results showed a regularly porous structure with 20 μm pore size in average. The gelation time in the crosslink process of PGA/PL hydrogels was within less than 5 min. PGA/PL hydrogels had excellent optical performance that was evaluated by a novel optotype method. Furthermore, PGA/PL hydrogels were found to be pH-sensitive, which could be adjusted to the pH of swelling media intelligently. The terminal pH of swelling medium could be controlled at 5 ± 1 after equilibrium when the initial pH was within 3-11. The swelling kinetics was found to follow a Voigt model in deionized water but a pseudo-second-order model in normal saline and phosphate buffer solution, respectively. The differential swelling degrees were attributed to the swelling theory based on the different ratio of -COOH/-NH2 and pore size in hydrogels. The results of mechanical property indicated that PGA/PL hydrogels were soft and elastic. Moreover, PGA/PL hydrogels exhibited excellent biocompatibility by cell proliferation experiment. PGA/PL hydrogels could be degraded in PBS solution and the degradation rate was decreased with the increase of the molar ratio of PL. Considering the simple preparation process and pH-sensitive property, these PGA/PL hydrogels might have high potential for use in medical and clinical fields.
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Affiliation(s)
- Jiachuan Hua
- Key Laboratory of Advanced Textile Composites, Tianjin Polytechnic University, Ministry of Education, Tianjin 300387, China; School of Textiles, Tianjin Polytechnic University, Tianjin 300387, China
| | - Zheng Li
- Key Laboratory of Advanced Textile Composites, Tianjin Polytechnic University, Ministry of Education, Tianjin 300387, China; School of Textiles, Tianjin Polytechnic University, Tianjin 300387, China.
| | - Wen Xia
- Key Laboratory of Advanced Textile Composites, Tianjin Polytechnic University, Ministry of Education, Tianjin 300387, China; School of Textiles, Tianjin Polytechnic University, Tianjin 300387, China
| | - Ning Yang
- Key Laboratory of Advanced Textile Composites, Tianjin Polytechnic University, Ministry of Education, Tianjin 300387, China; School of Textiles, Tianjin Polytechnic University, Tianjin 300387, China
| | - Jixian Gong
- Key Laboratory of Advanced Textile Composites, Tianjin Polytechnic University, Ministry of Education, Tianjin 300387, China; School of Textiles, Tianjin Polytechnic University, Tianjin 300387, China
| | - Jianfei Zhang
- Key Laboratory of Advanced Textile Composites, Tianjin Polytechnic University, Ministry of Education, Tianjin 300387, China; School of Textiles, Tianjin Polytechnic University, Tianjin 300387, China.
| | - Changsheng Qiao
- Key Laboratory of Industrial Microbiology, Tianjin University of Science and Technology, Ministry of Education, Tianjin 300457, China
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27
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Palazon F, Léonard D, Le Mogne T, Zuttion F, Chevalier C, Phaner-Goutorbe M, Souteyrand É, Chevolot Y, Cloarec JP. Orthogonal chemical functionalization of patterned gold on silica surfaces. BEILSTEIN JOURNAL OF NANOTECHNOLOGY 2015; 6:2272-2277. [PMID: 26734519 PMCID: PMC4685923 DOI: 10.3762/bjnano.6.233] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/06/2015] [Accepted: 11/11/2015] [Indexed: 06/05/2023]
Abstract
Single-step orthogonal chemical functionalization procedures have been developed with patterned gold on silica surfaces. Different combinations of a silane and a thiol were simultaneously deposited on a gold/silica heterogeneous substrate. The orthogonality of the functionalization (i.e., selective grafting of the thiol on the gold areas and the silane on the silica) was demonstrated by X-ray photoelectron spectroscopy (XPS) as well as time-of-flight secondary ion mass spectrometry (ToF-SIMS) mapping. The orthogonal functionalization was used to immobilize proteins onto gold nanostructures on a silica substrate, as demonstrated by atomic force microscopy (AFM). These results are especially promising in the development of future biosensors where the selective anchoring of target molecules onto nanostructured transducers (e.g., nanoplasmonic biosensors) is a major challenge.
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Affiliation(s)
- Francisco Palazon
- Université de Lyon, Institut des Nanotechnologies de Lyon, site École Centrale de Lyon, CNRS UMR 5270, 36 Avenue Guy de Collongue, 69134 Écully, France
| | - Didier Léonard
- Université de Lyon, Institut des Sciences Analytiques, Université Claude Bernard Lyon 1 / CNRS / ENS de Lyon, CNRS UMR 5280, 5 rue de la Doua, 69100 Villeurbanne, France
| | - Thierry Le Mogne
- Université de Lyon, École Centrale de Lyon, Laboratoire de Tribologie et Dynamique des Systèmes, CNRS UMR 5513, 36 Avenue Guy de Collongue, 69134 Écully, France
| | - Francesca Zuttion
- Université de Lyon, Institut des Nanotechnologies de Lyon, site École Centrale de Lyon, CNRS UMR 5270, 36 Avenue Guy de Collongue, 69134 Écully, France
| | - Céline Chevalier
- Laboratoire Nanotechnologies & Nanosystèmes (UMI-LN2 3463), Université de Sherbrooke - CNRS - INSA de Lyon - ECL - UJF-CPE Lyon, Université de Sherbrooke, 3000 Boulevard de l’Université, Sherbrooke, Québec J1K 0A5, Canada
- LTM/CNRS/RENATECH, 17 rue des martyrs, 38054 Grenoble, France
| | - Magali Phaner-Goutorbe
- Université de Lyon, Institut des Nanotechnologies de Lyon, site École Centrale de Lyon, CNRS UMR 5270, 36 Avenue Guy de Collongue, 69134 Écully, France
| | - Éliane Souteyrand
- Université de Lyon, Institut des Nanotechnologies de Lyon, site École Centrale de Lyon, CNRS UMR 5270, 36 Avenue Guy de Collongue, 69134 Écully, France
| | - Yann Chevolot
- Université de Lyon, Institut des Nanotechnologies de Lyon, site École Centrale de Lyon, CNRS UMR 5270, 36 Avenue Guy de Collongue, 69134 Écully, France
| | - Jean-Pierre Cloarec
- Université de Lyon, Institut des Nanotechnologies de Lyon, site École Centrale de Lyon, CNRS UMR 5270, 36 Avenue Guy de Collongue, 69134 Écully, France
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28
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Booth MA, Kannappan K, Hosseini A, Partridge A. In-Depth Electrochemical Investigation of Surface Attachment Chemistry via Carbodiimide Coupling. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2015; 31:8033-41. [PMID: 26107592 DOI: 10.1021/acs.langmuir.5b01863] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Aminoferrocene is used as an electroactive indicator to investigate carbodiimide coupling reactions on a carboxylic acid-functionalized self-assembled monolayer. The commonly used attachment chemistry with 1-ethyl-3-(3-(dimethylamino)propyl)carbodiimide hydrochloride (EDC) and N-hydroxysuccinimide (NHS) is used for surface activation. A number of conditions are investigated, including EDC and NHS concentration, buffer solutions, incubation timing, and aminoferrocene concentration. Ferrocene is a well-documented electroactive species, and the number of surface-bound ferrocene species can be calculated using electrochemical methods. This capability allows determination of optimal conditions, as well as providing a method for comparing and investigating novel carboxylated surfaces. An EDC-mediated procedure with ∼5 mM EDC and NHS (1:1) made in water, with a full acid monolayer, with 250 μM aminoferrocene for 40 min was found to give the highest ferrocene attachment. An application of this is demonstrated for preparing a probe-DNA-coated surface for DNA sensing. By backfilling with aminoferrocene, a differential quantification of the amount of probe DNA available for sensing can be obtained. This provides an elegant method to monitor an important aspect, namely, probe surface characterization, which will be highly useful for biosensing purposes.
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Affiliation(s)
- Marsilea Adela Booth
- †Digital Sensing Limited, 16 Beatrice Tinsley Crescent, Albany, Auckland 0632, New Zealand
| | - Karthik Kannappan
- †Digital Sensing Limited, 16 Beatrice Tinsley Crescent, Albany, Auckland 0632, New Zealand
| | - Ali Hosseini
- †Digital Sensing Limited, 16 Beatrice Tinsley Crescent, Albany, Auckland 0632, New Zealand
- ‡Department of Chemical and Materials Engineering, The University of Auckland, Private Bag 92019, Auckland, New Zealand
| | - Ashton Partridge
- †Digital Sensing Limited, 16 Beatrice Tinsley Crescent, Albany, Auckland 0632, New Zealand
- ‡Department of Chemical and Materials Engineering, The University of Auckland, Private Bag 92019, Auckland, New Zealand
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29
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Nanoparticles selectively immobilized onto large arrays of gold micro and nanostructures through surface chemical functionalizations. J Colloid Interface Sci 2015; 447:152-8. [PMID: 25490855 DOI: 10.1016/j.jcis.2014.11.028] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2014] [Revised: 10/31/2014] [Accepted: 11/10/2014] [Indexed: 11/20/2022]
Abstract
Latex nanoparticles (100nm and 200nm diameter) were precisely located onto the gold regions of micro and nanopatterned gold/silica substrates through surface chemical functionalizations. The gold patterns were selectively functionalized with alkylthiols bearing biotin or amine headgroups. This selective functionalization allowed the trapping of streptavidin- or carboxy-functionalized latex nanoparticles onto the gold structures with very little non-specific adsorption onto the surrounding silica. Quantitative data of nanoparticle capture on gold and silica, obtained through SEM image analysis, showed a one to two order of magnitude increase on gold with a similar low coverage on silica (non-specific adsorption) thanks to chemical functionalizations. Single nanoparticles were captured at the gap of dimer gold nanostructures.
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30
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Yan Q, Zheng HN, Jiang C, Li K, Xiao SJ. EDC/NHS activation mechanism of polymethacrylic acid: anhydride versus NHS-ester. RSC Adv 2015. [DOI: 10.1039/c5ra13844b] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
Both stable intermediates of anhydride and NHS-ester were observed after EDC/NHS activation of PMAA, where NHS-ester waxes, while anhydride wanes complementarily with increasing fragmentation degree of PMAA blocks in PMAA-associated polymer blends.
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Affiliation(s)
- Qin Yan
- State Key Laboratory of Coordination Chemistry
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210093
- China
| | - Hong-Ning Zheng
- State Key Laboratory of Coordination Chemistry
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210093
- China
| | - Chuan Jiang
- State Key Laboratory of Coordination Chemistry
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210093
- China
| | - Kun Li
- State Key Laboratory of Coordination Chemistry
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210093
- China
| | - Shou-Jun Xiao
- State Key Laboratory of Coordination Chemistry
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210093
- China
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31
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Siurdyban E, Brotin T, Heuzé K, Vellutini L, Buffeteau T. Immobilization of cryptophane derivatives onto SiO2/Au and Au substrates. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2014; 30:14859-14867. [PMID: 25420229 DOI: 10.1021/la5039156] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
The synthesis of a cryptophane molecule bearing five methoxy substituents and an alkanethiol chain, 4, as well as its subsequent grafting onto a gold surface, is reported. Immobilization of cryptophane derivatives onto silica (SiO2/Au) surfaces was also performed by reacting a cryptophane molecule bearing one or six acid functions, 5 or 6, respectively, with an amino-terminated self-assembled monolayer (SAM). Polarization modulation infrared reflection-absorption spectroscopy (PM-IRRAS) was used to characterize the two types of cryptophane monolayers. Surface coverage of cryptophane monolayers was estimated by comparing the PM-IRRAS intensity of cryptophane bands with that calculated from the optical constants of pentamethoxy-cryptophane for a compact monolayer. A very efficient grafting of 4 onto a gold surface was found, with a surface coverage close to 100%. On the other hand, the reaction of mono-acid, 5, or hexa-acid, 6, cryptophanes with amino-terminated SAM was less efficient, since the surface coverage did not exceed 15%. Finally, a good surface coverage (75%) was also obtained by using a cysteamine coupling agent to modify 5 before its grafting onto a gold surface.
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Affiliation(s)
- Elise Siurdyban
- Institut des Sciences Moléculaires (UMR 5255-CNRS), Université de Bordeaux , 351 Cours de la Libération, 33405 Talence, France
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32
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Santhanam S, Liang J, Baid R, Ravi N. Investigating thiol-modification on hyaluronan via carbodiimide chemistry using response surface methodology. J Biomed Mater Res A 2014; 103:2300-8. [PMID: 25369214 DOI: 10.1002/jbm.a.35366] [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] [Received: 08/01/2014] [Revised: 10/09/2014] [Accepted: 10/22/2014] [Indexed: 01/12/2023]
Abstract
Hyaluronan (HA) is a naturally occurring glycosaminoglycan widely researched for its use as a biomaterial in tissue engineering, drug delivery, angiogenesis, and ophthalmic surgeries. The mechanical properties of this biomaterial can be altered to a required extent by chemically modifying the pendant reactive groups. However, derivatizing these polymers to a predetermined extent has been the Achilles heel for this process. In this study, we have investigated the factors controlling the derivatization of the carboxyl moieties of HA with amine containing thiol, cystamine dihydrochloride (Cys), via carbodiimide crosslinking chemistry. We used fractional factorial design to screen and identify the significant factor(s) affecting the reaction, and response surface methodology (RSM) to develop a model equation for predicting the degree of thiolation of HA. Also, we analyzed the reaction mechanism for potential side reactions. We observed that N-(3-dimethylaminopropyl)-N'-ethylcarbodiimide hydrochloride (EDC) (mole ratio with repeat unit of HA) is the significant factor controlling the degree of amidation. The quadratic equations developed from RSM predict the formulation for a desired degree of amidation of HA and percentage of potential side product. Hence, derivatizing HA to a predetermined extent with minimal side product can be achieved using the statistical design of experiments.
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Affiliation(s)
- Sruthi Santhanam
- Department of Energy, Environmental and Chemical Engineering, Washington University in St. Louis, Saint Louis, Missouri
| | - Jue Liang
- Department of Ophthalmology and Visual Sciences, Washington University School of Medicine, Saint Louis, Missouri
| | - Rinku Baid
- Department of Ophthalmology and Visual Sciences, Washington University School of Medicine, Saint Louis, Missouri
| | - Nathan Ravi
- Department of Energy, Environmental and Chemical Engineering, Washington University in St. Louis, Saint Louis, Missouri.,Department of Ophthalmology and Visual Sciences, Washington University School of Medicine, Saint Louis, Missouri.,Department of Research, Veterans Affairs Healthcare System, Saint Louis, Missouri
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