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Khan M, Cherni K, Dekhili R, Spadavecchia J. Spectroscopic Assessment of Doxorubicin (DOX)-Gemcitabine (GEM) Gold Complex Nanovector as Diagnostic Tool of Galectin-1 Biomarker. Nanotechnol Sci Appl 2024; 17:95-105. [PMID: 38567312 PMCID: PMC10986416 DOI: 10.2147/nsa.s448883] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2023] [Accepted: 02/09/2024] [Indexed: 04/04/2024] Open
Abstract
Introduction The aim of this study is focused on the development of theranostic hybrid nanovectors based on gold-doxorubicin (DOX)-gemcitabine (GEM) complexes and their active targeting with Galectin-1 (Gal-1) as a promising therapeutic and prognostic marker in cancer. Methods For this purpose, a gold salt (HAuCl4) interacts with antitumor drugs (DOX; GEM) by chelation and then stabilizes with dicarboxylic acid-terminated polyethylene glycol (PEG) as a biocompatible surfactant. The proposed methodology is fast and reproducible, and leads to the formation of a hybrid nanovector named GEM@DOX IN PEG-AuNPs, in which the chemo-biological stability was improved. All synthetic chemical products were evaluated using various spectroscopic techniques (Raman and UV-Vis spectroscopy) and transmission electron microscopy (TEM). Results To conceive a therapeutic application, our hybrid nanovector (GEM@DOX IN PEG-AuNPs) was conjugated with the Galectin-1 protein (Gal-1) at different concentrations to predict and specifically recognize cancer cells. Gal-1 interacts with GEM@DOX in PEG-AuNPs, as shown by SPR and Raman measurements. We observed both dynamic variation in the plasmon position (SPR) and Raman band with Gal-1 concentration. Discussion We identified that GEM grafted electrostatically onto DOX IN PEG-AuNPs assumes a better chemical conformation, in which the amino group (NH3+) reacts with the carboxylic (COO-) group of PEG diacide, whereas the ciclopenthanol group at position C-5' reacts with NH3+ of DOX. Conclusion This study opens further way in order to built "smart nanomedical devices" that could have a dual application as therapeutic and diagnostic in the field of nanomedicine and preclinical studies associated.
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Affiliation(s)
- Memona Khan
- CNRS, UMR 7244, NBD-CSPBAT, Laboratory of Chemistry, Structures and Properties of Biomaterials and Therapeutic Agents University Paris 13, Sorbonne Paris Nord, Bobigny, France
| | - Khaoula Cherni
- CNRS, UMR 7244, NBD-CSPBAT, Laboratory of Chemistry, Structures and Properties of Biomaterials and Therapeutic Agents University Paris 13, Sorbonne Paris Nord, Bobigny, France
| | - Rawdha Dekhili
- CNRS, UMR 7244, NBD-CSPBAT, Laboratory of Chemistry, Structures and Properties of Biomaterials and Therapeutic Agents University Paris 13, Sorbonne Paris Nord, Bobigny, France
| | - Jolanda Spadavecchia
- CNRS, UMR 7244, NBD-CSPBAT, Laboratory of Chemistry, Structures and Properties of Biomaterials and Therapeutic Agents University Paris 13, Sorbonne Paris Nord, Bobigny, France
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Piguillem SV, Gamella M, García de Frutos P, Batlle M, Yáñez‐Sedeño P, Messina GA, Fernández‐Baldo MA, Campuzano S, Pedrero M, Pingarrón JM. Easily Multiplexable Immunoplatform to Assist Heart Failure Diagnosis through Amperometric Determination of Galectin‐3. ELECTROANAL 2020. [DOI: 10.1002/elan.202060323] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Sofía V. Piguillem
- Analytical Chemistry Dept. Faculty of Chemistry Complutense University of Madrid. E-28040 Madrid Spain
- INQUISAL, Departamento de Química. Universidad Nacional de San Luis, CONICET. Chacabuco 917. D5700BWS. San Luis Argentina
| | - Maria Gamella
- Analytical Chemistry Dept. Faculty of Chemistry Complutense University of Madrid. E-28040 Madrid Spain
| | | | - Montserrat Batlle
- Institute of Biomedical Research August Pi i Sunyer (IDIBAPS) and The Cardiovascular Clinic Institute Hospital Clínic de Barcelona Spain
| | - Paloma Yáñez‐Sedeño
- Analytical Chemistry Dept. Faculty of Chemistry Complutense University of Madrid. E-28040 Madrid Spain
| | - Germán A. Messina
- INQUISAL, Departamento de Química. Universidad Nacional de San Luis, CONICET. Chacabuco 917. D5700BWS. San Luis Argentina
| | - Martín A. Fernández‐Baldo
- INQUISAL, Departamento de Química. Universidad Nacional de San Luis, CONICET. Chacabuco 917. D5700BWS. San Luis Argentina
| | - Susana Campuzano
- Analytical Chemistry Dept. Faculty of Chemistry Complutense University of Madrid. E-28040 Madrid Spain
| | - María Pedrero
- Analytical Chemistry Dept. Faculty of Chemistry Complutense University of Madrid. E-28040 Madrid Spain
| | - José M. Pingarrón
- Analytical Chemistry Dept. Faculty of Chemistry Complutense University of Madrid. E-28040 Madrid Spain
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Minamiki T, Ichikawa Y, Kurita R. The Power of Assemblies at Interfaces: Nanosensor Platforms Based on Synthetic Receptor Membranes. SENSORS (BASEL, SWITZERLAND) 2020; 20:E2228. [PMID: 32326464 PMCID: PMC7218865 DOI: 10.3390/s20082228] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/13/2020] [Revised: 04/06/2020] [Accepted: 04/09/2020] [Indexed: 11/17/2022]
Abstract
Synthetic sensing materials (artificial receptors) are some of the most attractive components of chemical/biosensors because of their long-term stability and low cost of production. However, the strategy for the practical design of these materials toward specific molecular recognition in water is not established yet. For the construction of artificial material-based chemical/biosensors, the bottom-up assembly of these materials is one of the effective methods. This is because the driving forces of molecular recognition on the receptors could be enhanced by the integration of such kinds of materials at the 'interfaces', such as the boundary portion between the liquid and solid phases. Additionally, the molecular assembly of such self-assembled monolayers (SAMs) can easily be installed in transducer devices. Thus, we believe that nanosensor platforms that consist of synthetic receptor membranes on the transducer surfaces can be applied to powerful tools for high-throughput analyses of the required targets. In this review, we briefly summarize a comprehensive overview that includes the preparation techniques for molecular assemblies, the characterization methods of the interfaces, and a few examples of receptor assembly-based chemical/biosensing platforms on each transduction mechanism.
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Affiliation(s)
- Tsukuru Minamiki
- Biomedical Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), 1-1-1 Higashi, Tsukuba, Ibaraki 305-8566, Japan;
- DAILAB, DBT-AIST International Center for Translational and Environmental Research (DAICENTER), National Institute of Advanced Industrial Science and Technology (AIST), Central 5-41, 1-1-1 Higashi, Tsukuba, Ibaraki 305-8565, Japan
| | - Yuki Ichikawa
- Biomedical Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), 1-1-1 Higashi, Tsukuba, Ibaraki 305-8566, Japan;
- Faculty of Pure and Applied Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8573, Japan
| | - Ryoji Kurita
- Biomedical Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), 1-1-1 Higashi, Tsukuba, Ibaraki 305-8566, Japan;
- DAILAB, DBT-AIST International Center for Translational and Environmental Research (DAICENTER), National Institute of Advanced Industrial Science and Technology (AIST), Central 5-41, 1-1-1 Higashi, Tsukuba, Ibaraki 305-8565, Japan
- Faculty of Pure and Applied Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8573, Japan
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Martos-Maldonado MC, Quesada-Soriano I, García-Fuentes L, Vargas-Berenguel A. Multivalent Lactose-Ferrocene Conjugates Based on Poly (Amido Amine) Dendrimers and Gold Nanoparticles as Electrochemical Probes for Sensing Galectin-3. NANOMATERIALS 2020; 10:nano10020203. [PMID: 31991555 PMCID: PMC7074905 DOI: 10.3390/nano10020203] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/26/2019] [Revised: 01/16/2020] [Accepted: 01/19/2020] [Indexed: 12/17/2022]
Abstract
Galectin-3 is considered a cancer biomarker and bioindicator of fibrosis and cardiac remodeling and, therefore, it is desirable to develop convenient methods for its detection. Herein, an approach based on the development of multivalent electrochemical probes with high galectin-3 sensing abilities is reported. The probes consist of multivalent presentations of lactose–ferrocene conjugates scaffolded on poly (amido amine) (PAMAM) dendrimers and gold nanoparticles. Such multivalent lactose–ferrocene conjugates are synthesized by coupling of azidomethyl ferrocene–lactose building blocks on alkyne-functionalized PAMAM, for the case of the glycodendrimers, and to disulfide-functionalized linkers that are then used for the surface modification of citrate-stabilized gold nanoparticles. The binding and sensing abilities toward galectin-3 of both ferrocene-containing lactose dendrimers and gold nanoparticles have been evaluated by means of isothermal titration calorimetry, UV–vis spectroscopy, and differential pulse voltammetry. The highest sensitivity by electrochemical methods to galectin-3 was shown by lactosylferrocenylated gold nanoparticles, which are able to detect the lectin in nanomolar concentrations.
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5
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Kubota R, Sasaki Y, Minamiki T, Minami T. Chemical Sensing Platforms Based on Organic Thin-Film Transistors Functionalized with Artificial Receptors. ACS Sens 2019; 4:2571-2587. [PMID: 31475522 DOI: 10.1021/acssensors.9b01114] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Organic thin-film transistors (OTFTs) have attracted intense attention as promising electronic devices owing to their various applications such as rollable active-matrix displays, flexible nonvolatile memories, and radiofrequency identification (RFID) tags. To further broaden the scope of the application of OTFTs, we focus on the host-guest chemistry combined with the electronic devices. Extended-gate types of OTFTs functionalized with artificial receptors were fabricated to achieve chemical sensing of targets in complete aqueous media. Organic and inorganic ions (cations and anions), neutral molecules, and proteins, which are regarded as target analytes in the field of host-guest chemistry, were electrically detected by artificial receptors. Molecular recognition phenomena on the extended-gate electrode were evaluated by several analytical methods such as photoemission yield spectroscopy in the air, contact angle goniometry, and X-ray photoelectron spectroscopy. Interestingly, the electrical responses of the OTFTs were highly sensitive to the chemical structures of the guests. Thus, the OTFTs will facilitate the selective sensing of target analytes and the understanding of chemical conversions in biological and environmental systems. Furthermore, such cross-reactive responses observed in our studies will provide some important insights into next-generation sensing systems such as OTFT arrays. We strongly believe that our approach will enable the development of new intriguing sensor platforms in the field of host-guest chemistry, analytical chemistry, and organic electronics.
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Affiliation(s)
- Riku Kubota
- Institute of Industrial Science, The University of Tokyo, 4-6-1 Komaba, Meguro-ku, Tokyo 153−8505, Japan
| | - Yui Sasaki
- Institute of Industrial Science, The University of Tokyo, 4-6-1 Komaba, Meguro-ku, Tokyo 153−8505, Japan
| | - Tsukuru Minamiki
- Institute of Industrial Science, The University of Tokyo, 4-6-1 Komaba, Meguro-ku, Tokyo 153−8505, Japan
| | - Tsuyoshi Minami
- Institute of Industrial Science, The University of Tokyo, 4-6-1 Komaba, Meguro-ku, Tokyo 153−8505, Japan
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MINAMIKI T, MINAMI T. Development of Organic Thin-film Transistors with Molecular Recognition Ability for Chemical Sensing. BUNSEKI KAGAKU 2018. [DOI: 10.2116/bunsekikagaku.67.229] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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7
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Nazemi E, Hassen WM, Frost EH, Dubowski JJ. Growth of Escherichia coli on the GaAs (001) surface. Talanta 2018; 178:69-77. [PMID: 29136882 DOI: 10.1016/j.talanta.2017.08.097] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2017] [Revised: 08/23/2017] [Accepted: 08/24/2017] [Indexed: 10/18/2022]
Abstract
Detection of pathogenic bacteria and monitoring their susceptibility to antibiotics are of great importance in the fields of medicine, pharmaceutical research, as well as water and food industries. In order to develop a photonic biosensor for detection of bacteria by taking advantage of photoluminescence (PL) of GaAs-based devices, we have investigated the capture and growth of Escherichia coli K12 on bare and biofunctionalized surfaces of GaAs (001) - a material of interest for capping different semiconductor microstructures. The results were compared with the capture and growth of Escherichia coli K12 on Au surfaces that have commonly been applied for studying a variety of biological and biochemical reactions. We found that neither GaAs nor Au-coated glass wafers placed in Petri dishes inoculated with bacteria inhibited bacterial growth in nutrient agar, regardless of the wafers being bare or biofunctionalized. However, the capture and growth of bacteria on biofunctionalized surfaces of GaAs and Au wafers kept in a flow cell and exposed to different concentrations of bacteria and growth medium revealed that the initial surface coverage and the subsequent bacterial growth were dependent on the biofunctionalization architecture, with antibody-coated surfaces clearly being most efficient in capturing bacteria and offering better conditions for growth of bacteria. We have observed that, as long as the GaAs wafers were exposed to bacterial suspensions at concentrations of at least 105 CFU/mL, bacteria could grow on the surface of wafers, regardless of the type of biofunctionalization architecture used to capture the bacteria. These results provide important insight towards the successful development of GaAs-based devices designed for photonic monitoring of bacterial reactions to different biochemical environments.
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Affiliation(s)
- Elnaz Nazemi
- Interdisciplinary Institute for Technological Innovation (3IT), CNRS UMI-3463, Department of Electrical and Computer Engineering, Faculty of Engineering, Université de Sherbrooke, 3000, boul. de l'Université, Sherbrooke, Québec, Canada J1K 0A5.
| | - Walid M Hassen
- Interdisciplinary Institute for Technological Innovation (3IT), CNRS UMI-3463, Department of Electrical and Computer Engineering, Faculty of Engineering, Université de Sherbrooke, 3000, boul. de l'Université, Sherbrooke, Québec, Canada J1K 0A5.
| | - Eric H Frost
- Interdisciplinary Institute for Technological Innovation (3IT), CNRS UMI-3463, Department of Electrical and Computer Engineering, Faculty of Engineering, Université de Sherbrooke, 3000, boul. de l'Université, Sherbrooke, Québec, Canada J1K 0A5; Department of Microbiology and Infectiology, Faculty of Medicine and Health Sciences, Université de Sherbrooke, 3001, 12th Avenue North, Sherbrooke, Québec, Canada J1H 5N4.
| | - Jan J Dubowski
- Interdisciplinary Institute for Technological Innovation (3IT), CNRS UMI-3463, Department of Electrical and Computer Engineering, Faculty of Engineering, Université de Sherbrooke, 3000, boul. de l'Université, Sherbrooke, Québec, Canada J1K 0A5.
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8
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Bumba L, Laaf D, Spiwok V, Elling L, Křen V, Bojarová P. Poly-N-Acetyllactosamine Neo-Glycoproteins as Nanomolar Ligands of Human Galectin-3: Binding Kinetics and Modeling. Int J Mol Sci 2018; 19:ijms19020372. [PMID: 29373511 PMCID: PMC5855594 DOI: 10.3390/ijms19020372] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2018] [Revised: 01/22/2018] [Accepted: 01/23/2018] [Indexed: 01/22/2023] Open
Abstract
Galectin-3 (Gal-3) is recognized as a prognostic marker in several cancer types. Its involvement in tumor development and proliferation makes this lectin a promising target for early cancer diagnosis and anti-cancer therapies. Gal-3 recognizes poly-N-acetyllactosamine (LacNAc)-based carbohydrate motifs of glycoproteins and glycolipids with a high specificity for internal LacNAc epitopes. This study analyzes the mode and kinetics of binding of Gal-3 to a series of multivalent neo-glycoproteins presenting complex poly-LacNAc-based oligosaccharide ligands on a scaffold of bovine serum albumin. These neo-glycoproteins rank among the strongest Gal-3 ligands reported, with Kd reaching sub-nanomolar values as determined by surface plasmon resonance. Significant differences in the binding kinetics were observed within the ligand series, showing the tetrasaccharide capped with N,N'-diacetyllactosamine (LacdiNAc) as the strongest ligand of Gal-3 in this study. A molecular model of the Gal-3 carbohydrate recognition domain with docked oligosaccharide ligands is presented that shows the relations in the binding site at the molecular level. The neo-glycoproteins presented herein may be applied for selective recognition of Gal-3 both on the cell surface and in blood serum.
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Affiliation(s)
- Ladislav Bumba
- Institute of Microbiology of the Czech Academy of Sciences, Vídeňská 1083, 14220 Prague, Czech Republic.
| | - Dominic Laaf
- Laboratory for Biomaterials, Institute for Biotechnology and Helmholtz-Institute for Biomedical Engineering, RWTH Aachen University, Pauwelsstrasse 20, 52074 Aachen, Germany.
| | - Vojtěch Spiwok
- Department of Biochemistry and Microbiology, University of Chemistry and Technology Prague, Technická 3, 16628 Prague 6, Czech Republic.
| | - Lothar Elling
- Laboratory for Biomaterials, Institute for Biotechnology and Helmholtz-Institute for Biomedical Engineering, RWTH Aachen University, Pauwelsstrasse 20, 52074 Aachen, Germany.
| | - Vladimír Křen
- Institute of Microbiology of the Czech Academy of Sciences, Vídeňská 1083, 14220 Prague, Czech Republic.
| | - Pavla Bojarová
- Institute of Microbiology of the Czech Academy of Sciences, Vídeňská 1083, 14220 Prague, Czech Republic.
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Minamiki T, Sasaki Y, Tokito S, Minami T. Label-Free Direct Electrical Detection of a Histidine-Rich Protein with Sub-Femtomolar Sensitivity using an Organic Field-Effect Transistor. ChemistryOpen 2017; 6:472-475. [PMID: 28794937 PMCID: PMC5542759 DOI: 10.1002/open.201700070] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2017] [Indexed: 11/29/2022] Open
Abstract
There is a growing interest in achieving sensor systems to enable on-site testing of biomarkers. Herein, a new strategy for highly sensitive protein detection at sub-femtomolar levels without any labelling has been demonstrated by using an organic field-effect transistor (OFET). An artificial histidine-rich protein receptor (NiII-nitrilotriacetic acid complex, NiII-nta) functionalizes a detection portion (i.e. an extended-gate electrode) of the fabricated OFET device. The OFET responds electrically and selectively to a target analyte (bovine serum albumin), meaning that the binding processes at the NiII-nta on the extended-gate electrode for the analyte affect the field-effect properties of the device. Our results demonstrate that the combination of the OFET with the artificial receptor is an ideal approach for label-free and immune-free protein detection.
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Affiliation(s)
- Tsukuru Minamiki
- Institute of Industrial ScienceThe University of TokyoTokyo153–8505Japan
| | - Yui Sasaki
- Institute of Industrial ScienceThe University of TokyoTokyo153–8505Japan
- Research Center for Organic ElectronicsYamagata UniversityYamagata992–8510Japan
| | - Shizuo Tokito
- Research Center for Organic ElectronicsYamagata UniversityYamagata992–8510Japan
| | - Tsuyoshi Minami
- Institute of Industrial ScienceThe University of TokyoTokyo153–8505Japan
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Zhang X, Zeng Y, Zheng A, Cai Z, Huang A, Zeng J, Liu X, Liu J. A fluorescence based immunoassay for galectin-4 using gold nanoclusters and a composite consisting of glucose oxidase and a metal-organic framework. Mikrochim Acta 2017. [DOI: 10.1007/s00604-017-2204-5] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Minamiki T, Minami T, Koutnik P, Anzenbacher P, Tokito S. Antibody- and Label-Free Phosphoprotein Sensor Device Based on an Organic Transistor. Anal Chem 2016; 88:1092-5. [DOI: 10.1021/acs.analchem.5b04618] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Tsukuru Minamiki
- Research
Center for Organic Electronics, Graduate School of Science and Engineering, Yamagata University, 4-3-16 Jonan, Yonezawa, Yamagata 992-8510, Japan
| | - Tsuyoshi Minami
- Research
Center for Organic Electronics, Graduate School of Science and Engineering, Yamagata University, 4-3-16 Jonan, Yonezawa, Yamagata 992-8510, Japan
| | - Petr Koutnik
- Department
of Chemistry and Center for Photochemical Sciences, Bowling Green State University, Bowling Green, Ohio 43403, United States
| | - Pavel Anzenbacher
- Department
of Chemistry and Center for Photochemical Sciences, Bowling Green State University, Bowling Green, Ohio 43403, United States
| | - Shizuo Tokito
- Research
Center for Organic Electronics, Graduate School of Science and Engineering, Yamagata University, 4-3-16 Jonan, Yonezawa, Yamagata 992-8510, Japan
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Tanaka M, Yoshioka K, Hirata Y, Fujimaki M, Kuwahara M, Niwa O. Design and fabrication of biosensing interface for waveguide-mode sensor. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2013; 29:13111-13120. [PMID: 24063697 DOI: 10.1021/la402802u] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
In order to develop a biosensing system with waveguide-mode sensor, fabrication of a biosensing interface on the silica surface of the sensing chip was carried out using triethoxysilane derivatives with anti-leptin antibody. Triethoxysilane derivatives bearing succinimide ester and oligoethylene glycol moieties were synthesized to immobilize the antibody and to suppress nonspecific adsorption of proteins, respectively. The chip modified with triethoxysilane derivatives bearing oligoethylene glycol moiety suppressed nonspecific adsorption of proteins derived from human serum effectively by rinse with PBS containing surfactant (0.05% Tween 20). On the other hand, it was confirmed that antibody was immobilized on the chip by immersion into antibody solution to show response of antigen-antibody reaction, where the chip was modified with triethoxysilane derivatives bearing succinimide ester moiety. When the interface was fabricated with antibody and a mixture of triethoxysilane derivatives bearing succinimide ester and oligoethylene glycol moieties, the response of antigen-antibody reaction depended on composition of the mixture and enhanced with the increase of ratio for triethoxysilane derivatives bearing succinimide ester moiety reflecting the antibody concentration immobilized on the chip. While introduction of excess triethoxysilane derivatives bearing succinimide ester moiety induced nonspecific adsorption of proteins derived from human serum, the immobilized antibody on the chip kept its activity after 1-month storage in a refrigerator. Taking into consideration those factors, the biosensing interface was fabricated using triethoxysilane derivatives with anti-leptin antibody to examine performance of the waveguide-mode sensor. It was found that the detection limits for human leptin were 50 ng/mL in PBS and 100 ng/mL in human serum. The results demonstrate that the waveguide-mode sensor powered by the biosensing interface fabricated with those triethoxysilane derivatives and antibody has potential to detect several tens of nanograms per milliliter of biomarkers in human serum with an unlabeled detection method.
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Affiliation(s)
- Mutsuo Tanaka
- Biomedical Research Institute , Advanced Industrial Science and Technology (AIST), Central 6, 1-1-1 Higashi, Tsukuba, Ibaraki 305-8566, Japan
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Tan YH, Fujikawa K, Pornsuriyasak P, Alla AJ, Ganesh NV, Demchenko AV, Stine KJ. Lectin-carbohydrate interactions on nanoporous gold monoliths. NEW J CHEM 2013; 37:2150-2165. [PMID: 24883017 PMCID: PMC4038695 DOI: 10.1039/c3nj00253e] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
Monoliths of nanoporous gold (np-Au) were modified with self-assembled monolayers of octadecanethiol (C18-SH), 8-mercaptooctyl α-D-mannopyranoside (αMan-C8-SH), and 8-mercapto-3,6-dioxaoctanol (HO-PEG2-SH), and the loading was assessed using thermogravimetric analysis (TGA). Modification with mixed SAMs containing αMan-C8-SH (at a 0.20 mole fraction in the SAM forming solution) with either octanethiol or HO-PEG2-SH was also investigated. The np-Au monoliths modified with αMan-C8-SH bind the lectin Concanavalin A (Con A), and the additional mass due to bound protein was assessed using TGA analysis. A comparison of TGA traces measured before and after exposure of HO-PEG2-SH modified np-Au to Con A showed that the non-specific binding of Con A was minimal. In contrast, np-Au modified with octanethiol showed a significant mass loss due to non-specifically adsorbed Con A. A significant mass loss was also attributed to binding of Con A to bare np-Au monoliths. TGA revealed a mass loss due to the binding of Con A to np-Au monoliths modified with pure αMan-C8-SH. The use of mass losses determined by TGA to compare the binding of Con A to np-Au monoliths modified by mixed SAMs of αMan-C8-SH and either octanethiol or HO-PEG2-SH revealed that binding to mixed SAM modified surfaces is specific for the mixed SAMs with HO-PEG2-SH but shows a significant contribution from non-specific adsorption for the mixed SAMs with octanethiol. Minimal adsorption of immunoglobulin G (IgG) and peanut agglutinin (PNA) towards the mannoside modified np-Au monoliths was demonstrated. A greater mass loss was found for Con A bound onto the monolith than for either IgG or PNA, signifying that the mannose presenting SAMs in np-Au retain selectivity for Con A. TGA data also provide evidence that Con A bound to the αMan-C8-SH modified np-Au can be eluted by flowing a solution of methyl α-D-mannopyranoside through the structure. The presence of Con A proteins on the modified np-Au surface was also confirmed using atomic force microscopy (AFM). The results highlight the potential for application of carbohydrate modified np-Au monoliths to glycoscience and glycotechnology and demonstrate that they can be used for capture and release of carbohydrate binding proteins in significant quantities.
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Affiliation(s)
- Yih Horng Tan
- Department of Chemistry and Biochemistry, University of Missouri – Saint Louis, Saint Louis, MO 63121, USA
- UM-St. Louis Center for Nanoscience, University of Missouri – Saint Louis, Saint Louis, MO 63121, USA
| | - Kohki Fujikawa
- Department of Chemistry and Biochemistry, University of Missouri – Saint Louis, Saint Louis, MO 63121, USA
| | - Papapida Pornsuriyasak
- Department of Chemistry and Biochemistry, University of Missouri – Saint Louis, Saint Louis, MO 63121, USA
| | - Allan J. Alla
- Department of Chemistry and Biochemistry, University of Missouri – Saint Louis, Saint Louis, MO 63121, USA
- UM-St. Louis Center for Nanoscience, University of Missouri – Saint Louis, Saint Louis, MO 63121, USA
| | - N. Vijaya Ganesh
- Department of Chemistry and Biochemistry, University of Missouri – Saint Louis, Saint Louis, MO 63121, USA
| | - Alexei V. Demchenko
- Department of Chemistry and Biochemistry, University of Missouri – Saint Louis, Saint Louis, MO 63121, USA
| | - Keith J. Stine
- Department of Chemistry and Biochemistry, University of Missouri – Saint Louis, Saint Louis, MO 63121, USA
- UM-St. Louis Center for Nanoscience, University of Missouri – Saint Louis, Saint Louis, MO 63121, USA
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Li X, Zhao L, Chen Z, Lin Y, Yu P, Mao L. Continuous Electrochemical Monitoring of Extracellular Lactate Production from Neonatal Rat Cardiomyocytes following Myocardial Hypoxia. Anal Chem 2012; 84:5285-91. [DOI: 10.1021/ac300354z] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Xianchan Li
- Beijing National
Laboratory for Molecular Sciences,
Key Laboratory of Analytical Chemistry for Living Biosystems, Institute
of Chemistry, the Chinese Academy of Sciences (CAS), Beijing 100190, China
| | - Lingzhi Zhao
- Beijing National
Laboratory for Molecular Sciences,
Key Laboratory of Analytical Chemistry for Living Biosystems, Institute
of Chemistry, the Chinese Academy of Sciences (CAS), Beijing 100190, China
| | - Zhenling Chen
- Beijing National
Laboratory for Molecular Sciences,
Key Laboratory of Analytical Chemistry for Living Biosystems, Institute
of Chemistry, the Chinese Academy of Sciences (CAS), Beijing 100190, China
| | - Yuqing Lin
- Beijing National
Laboratory for Molecular Sciences,
Key Laboratory of Analytical Chemistry for Living Biosystems, Institute
of Chemistry, the Chinese Academy of Sciences (CAS), Beijing 100190, China
| | - Ping Yu
- Beijing National
Laboratory for Molecular Sciences,
Key Laboratory of Analytical Chemistry for Living Biosystems, Institute
of Chemistry, the Chinese Academy of Sciences (CAS), Beijing 100190, China
| | - Lanqun Mao
- Beijing National
Laboratory for Molecular Sciences,
Key Laboratory of Analytical Chemistry for Living Biosystems, Institute
of Chemistry, the Chinese Academy of Sciences (CAS), Beijing 100190, China
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15
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Surface plasmon resonance analysis of interactions between diacylglycerol acyltransferase and its interacting molecules. Biosci Biotechnol Biochem 2011; 75:1135-9. [PMID: 21670529 DOI: 10.1271/bbb.110034] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
To measure the interactions of diacylglycerol acyltransferase (DGAT) by surface plasmon resonance (SPR), we immobilized Saccharomyces cerevisiae DGAT2 encoded by DGA1 on a BIACORE sensor chip surface. We used N-terminally truncated Dga1p with a FLAG tag at the C-terminus, which was purified to apparent homogeneity, maintaining significant DGAT activity (Kamisaka et al., Appl. Microbiol. Biotechnol., 88, 105-115 (2010)). Truncated Dga1p with a FLAG tag was immobilized with an anti-FLAG antibody that had been coupled with an L1 chip surface consisting of a carboxymethyl dextran matrix with additional hydrophobic alkane groups. The Dga1p-immobilized chip surface was analyzed for interactions of Dga1p with oleoyl-CoA, its substrate, and anti-Dga1p IgG, its interacting protein, by SPR. The binding of these analytes with the Dga1p-immobilized chip surface was specific, because butyryl-CoA, which cannot be used as a substrate for DGAT, and anti-glyceraldehyde-3-phosphate dehydrogenase IgG, did not induce any signals on SPR. Furthermore, injection of organic compounds such as xanthohumol, a DGAT inhibitor, into the Dga1p-immobilized chip surface induced significant SPR signals, probably due to interaction with DGAT. Another DGAT inhibitor, piperine, did not induce SPR signals on application, but induced them due to piperine on application together with oleoyl-CoA, in which piperine can be incorporated into the micelles of oleoyl-CoA. The results indicate that the Dga1p-immobilized L1 chip surface recognized DGAT inhibitors. Taking all this together, SPR measurement using the Dga1p-immobilized L1 chip surface provided a useful system to elucidate the structure-function relationships of DGAT and screen DGAT inhibitors.
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16
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Nishimura T, Sato Y, Tanaka M, Kurita R, Nakamoto K, Niwa O. Bifunctional tri(ethylene glycol) alkanethiol monolayer modified gold electrode for on-chip electrochemical immunoassay of pg level leptin. ANAL SCI 2011; 27:465. [PMID: 21558650 DOI: 10.2116/analsci.27.465] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
An on-chip enzyme-linked immunosorbent assay combined with an electrochemical detection method (EC-ELISA) was employed to detect a leptin, one of the most important adipose derived hormones, using gold electrodes modified with a tri(ethylene glycol) terminated short alkanethiol (TEGCnSH, Cn = (CH(2))n, n = 2, 4, 6, and 8) monolayer. These TEGCnSH monolayers on gold electrodes can suppress non-specific protein adsorption without affecting the electrochemical activity required for detecting p-aminophenol (PAP), which is an alkaline phosphatase (ALP) product. We measured leptin with a highly sensitive detection range (100 pg mL(-1) to 10 ng mL(-1) level) and with the desired detection limit (13.6 pg mL(-1)) by using electrochemical detection. For detecting leptin, the EC-ELISA method using TEGC4SH modified gold electrode with a poly(dimethylsiloxane) based microchannel was superior to the conventional ELISA method. With the EC-ELISA method, we were able to measure leptin with a satisfactory detection range and a pg level detection limit within 30 min, which is a much lower detection level than that obtained with conventional plate based ELISA.
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Affiliation(s)
- Tetsuya Nishimura
- National Institute of Advanced Industrial Science and Technology, Ibaraki, Japan
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17
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Synthesis and galectin-binding activities of mercaptododecyl glycosides containing a terminal β-galactosyl group. Bioorg Med Chem Lett 2011; 21:1265-9. [DOI: 10.1016/j.bmcl.2010.12.049] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2010] [Revised: 12/06/2010] [Accepted: 12/13/2010] [Indexed: 11/21/2022]
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18
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Nakamura T, Sakurai Y, Hideshima S, Kuroiwa S, Osaka T. Sialylglycan-modified Field Effect Transistor for Detection of Charged Lectin under Physiological Conditions. CHEM LETT 2010. [DOI: 10.1246/cl.2010.1245] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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