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Yao K, Liu H, Fang B, Xia C, Gu L, Fang L, Zhu H, Pan J, Zhang G. Design and application of a novel "turn-on" fluorescent probe for imaging sulfite in living cells and inflammation models. Bioorg Chem 2024; 146:107305. [PMID: 38537335 DOI: 10.1016/j.bioorg.2024.107305] [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: 02/15/2024] [Revised: 03/09/2024] [Accepted: 03/21/2024] [Indexed: 04/13/2024]
Abstract
Sulfite is one of the main existing forms of sulfur dioxide (SO2) in living system, which has been recognized as an endogenous mediator in inflammation. Evidence has accumulated to show that abnormal level of sulfite is associated with many inflammatory diseases, including neurological diseases and cancers. Herein, a novel fluorescent probe named QX-OA was designed and synthesized to detect sulfite. QX-OA was constructed by choosing quinolinium-xanthene as the fluorophore and levulinate as the specific and relatively steady recognition reaction. The probe showed remarkable green turn-on signal at 550 nm, together with high sensitivity (90-fold) and excellent selectivity to sulfite over other possible interfering species. In the meantime, QX-OA was successfully applied to visualize endogenous and exogenous sulfite in Hela cells. In the LPS-induced inflammation model, QX-OA could visualize the dose-dependent increase of sulfite level (0-2 mg/mL). Consequently, QX-OA was determined to be a potential method for detecting sulfite in pre-clinical diagnosis.
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Affiliation(s)
- Kun Yao
- Mental Health Center of Jiangnan University, Wuxi Central Rehabilitation Hospital, Wuxi, Jiangsu 214151, China; Department of Medicinal Chemistry, College of Pharmaceutical Sciences, Soochow University Medical College, Suzhou 215123, China
| | - Hua Liu
- Department of Pharmacy, The Second Affiliated Hospital of Soochow University, Suzhou 215004, Jiangsu Province, China
| | - Binbin Fang
- Mental Health Center of Jiangnan University, Wuxi Central Rehabilitation Hospital, Wuxi, Jiangsu 214151, China
| | - Congyang Xia
- Mental Health Center of Jiangnan University, Wuxi Central Rehabilitation Hospital, Wuxi, Jiangsu 214151, China
| | - Lingmin Gu
- Mental Health Center of Jiangnan University, Wuxi Central Rehabilitation Hospital, Wuxi, Jiangsu 214151, China
| | - Lin Fang
- Mental Health Center of Jiangnan University, Wuxi Central Rehabilitation Hospital, Wuxi, Jiangsu 214151, China
| | - Haohao Zhu
- Mental Health Center of Jiangnan University, Wuxi Central Rehabilitation Hospital, Wuxi, Jiangsu 214151, China.
| | - Jie Pan
- Department of Pharmacy, The Second Affiliated Hospital of Soochow University, Suzhou 215004, Jiangsu Province, China.
| | - Guofu Zhang
- Mental Health Center of Jiangnan University, Wuxi Central Rehabilitation Hospital, Wuxi, Jiangsu 214151, China.
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2
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Messina GML, Campione P, Marletta G. Building Surfaces with Controlled Site-Density of Anchored Human Serum Albumin. ACS APPLIED BIO MATERIALS 2023; 6:4952-4960. [PMID: 37902234 DOI: 10.1021/acsabm.3c00647] [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] [Indexed: 10/31/2023]
Abstract
Stable and uniform layers of protein molecules at the surface are important to build passive devices as well as active constructs for smart biointerfaces for a large number of biomedical applications. In this context, a strategy to build-up surfaces able to anchor protein molecules on specific and controlled surface sites has been developed. Human serum albumin (HSA) has been chosen as a model protein due to its important antithrombogenic properties and its features in cell response highly valuable for in vivo devices. Uniform self-assembled monolayers of 2,2':6'2″-terpyridines (SAM), whose sites were further employed to chelate copper and iron ions, forming SAM-Cu(II) and SAM-Fe(II) complexes, have been developed. The effect of two metal cations on the physicochemical features of SAM, including thickness, Young's modulus, and tip-monolayer adhesion factors, has been investigated. Protein adsorption at different concentrations showed that the copper ion-templated surfaces exhibit highly specific mass uptake, kinetic behavior, and recognition and anchoring of HSA molecules owing to the coordination sphere of the different cations. The results pave the way to the development of a more general strategy to obtain ordered and density-tuned arrays of specific metal cations, which in turn would drive the anchoring of precise proteins for different biological functions.
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Affiliation(s)
- Grazia M L Messina
- Laboratory for Molecular Surfaces and Nanotechnology (LAMSUN), Department of Chemical Sciences, University of Catania and CSGI, Viale A. Doria 6, 95125 Catania, Italy
| | - Paola Campione
- Laboratory for Molecular Surfaces and Nanotechnology (LAMSUN), Department of Chemical Sciences, University of Catania and CSGI, Viale A. Doria 6, 95125 Catania, Italy
| | - Giovanni Marletta
- Laboratory for Molecular Surfaces and Nanotechnology (LAMSUN), Department of Chemical Sciences, University of Catania and CSGI, Viale A. Doria 6, 95125 Catania, Italy
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3
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Hong T, Zhou W, Tan S, Cai Z. A cooperation tale of biomolecules and nanomaterials in nanoscale chiral sensing and separation. NANOSCALE HORIZONS 2023; 8:1485-1508. [PMID: 37656443 DOI: 10.1039/d3nh00133d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
Abstract
The cooperative relationship between biomolecules and nanomaterials makes up a beautiful tale about nanoscale chiral sensing and separation. Biomolecules are considered a fabulous chirality 'donor' to develop chiral sensors and separation systems. Nature has endowed biomolecules with mysterious chirality. Various nanomaterials with specific physicochemical attributes can realize the transmission and amplification of this chirality. We focus on highlighting the advantages of combining biomolecules and nanomaterials in nanoscale chirality. To enhance the sensors' detection sensitivity, novel cooperation approaches between nanomaterials and biomolecules have attracted tremendous attention. Moreover, innovative biomolecule-based nanocomposites possess great importance in developing chiral separation systems with improved assay performance. This review describes the formation of a network based on nanomaterials and biomolecules mainly including DNA, proteins, peptides, amino acids, and polysaccharides. We hope this tale will record the perpetual relation between biomolecules and nanomaterials in nanoscale chirality.
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Affiliation(s)
- Tingting Hong
- School of Pharmacy, Changzhou University, Changzhou, Jiangsu 213164, China.
| | - Wenhu Zhou
- Xiangya School of Pharmaceutical Sciences, Central South University, 172 Tongzipo Road, Changsha, Hunan 410013, China
- Academician Workstation, Changsha Medical University, Changsha 410219, China
| | - Songwen Tan
- Xiangya School of Pharmaceutical Sciences, Central South University, 172 Tongzipo Road, Changsha, Hunan 410013, China
- Jiangsu Dawning Pharmaceutical Co., Ltd, Changzhou, Jiangsu 213100, China
| | - Zhiqiang Cai
- School of Pharmacy, Changzhou University, Changzhou, Jiangsu 213164, China.
- Jiangsu Dawning Pharmaceutical Co., Ltd, Changzhou, Jiangsu 213100, China
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4
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Chen B, Yan Q, Li D, Xie J. Degradation mechanism and development of detection technologies of ATP-related compounds in aquatic products: recent advances and remaining challenges. Crit Rev Food Sci Nutr 2023:1-22. [PMID: 37855450 DOI: 10.1080/10408398.2023.2267690] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2023]
Abstract
The degradation of ATP-related compounds is an important biochemical process that reflects the freshness of aquatic products after death. There has been considerable interest in investigating the factors affecting the degradation of ATP-related compounds in aquatic products and in developing techniques to detect them. This review provides the latest knowledge on the degradation mechanisms of ATP-related compounds during the storage of aquatic products and discusses the latest advances in ATP-related compound detection techniques. The degradation mechanisms discussed include mainly degradation pathways, endogenous enzymes, and microbial mechanisms of action. Microbial activity is the main reason for the degradation of IMP and related products during the mid to late storage of aquatic products, mainly through the related enzymes produced by microorganisms. Further elucidation of the degradation mechanisms of ATP-related compounds provides new ideas for quality control techniques in raw aquatic products during storage. The development of new technologies for the detection of ATP-related compounds has become a significant area of research. And, biosensors further improve the efficiency and accuracy of detection and have potential application prospects. The development of biosensor back-end modalities (test strips, fluorescent probes, and artificial intelligence) has accelerated the practical application of biosensors for the detection of ATP-related compounds.
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Affiliation(s)
- Bohan Chen
- College of Food Science and Technology, Shanghai Ocean University, Shanghai, China
- Shanghai Engineering Research Center of Aquatic-Product Processing & Preservation, Shanghai, China
| | - Qi Yan
- College of Food Science and Technology, Shanghai Ocean University, Shanghai, China
- Shanghai Engineering Research Center of Aquatic-Product Processing & Preservation, Shanghai, China
| | - Dapeng Li
- College of Food Science and Technology, Shanghai Ocean University, Shanghai, China
- Shanghai Engineering Research Center of Aquatic-Product Processing & Preservation, Shanghai, China
- Key Laboratory of Aquatic Products High-quality Utilization, Storage and Transportation (Co-construction by Ministry and Province), Ministry of Agriculture and Rural Affairs, Shanghai, China
| | - Jing Xie
- College of Food Science and Technology, Shanghai Ocean University, Shanghai, China
- Shanghai Engineering Research Center of Aquatic-Product Processing & Preservation, Shanghai, China
- Key Laboratory of Aquatic Products High-quality Utilization, Storage and Transportation (Co-construction by Ministry and Province), Ministry of Agriculture and Rural Affairs, Shanghai, China
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5
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Malatji K, Singh A, Thobakgale C, Alexandre K. Development of a Multiplex HIV/TB Diagnostic Assay Based on the Microarray Technology. BIOSENSORS 2023; 13:894. [PMID: 37754128 PMCID: PMC10526232 DOI: 10.3390/bios13090894] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Revised: 09/11/2023] [Accepted: 09/18/2023] [Indexed: 09/28/2023]
Abstract
Currently there are diagnostic tests available for human immunodeficiency virus (HIV) and tuberculosis (TB); however, they are still diagnosed separately, which can delay treatment in cases of co-infection. Here we report on a multiplex microarray technology for the detection of HIV and TB antibodies using p24 as well as TB CFP10, ESAT6 and pstS1 antigens on epoxy-silane slides. To test this technology for antigen-antibody interactions, immobilized antigens were exposed to human sera spiked with physiological concentrations of primary antibodies, followed by secondary antibodies conjugated to a fluorescent reporter. HIV and TB antibodies were captured with no cross-reactivity observed. The sensitivity of the slides was compared to that of high-binding plates. We found that the slides were more sensitive, with the detection limit being 0.000954 µg/mL compared to 4.637 µg/mL for the plates. Furthermore, stability studies revealed that the immobilized antigens could be stored dry for at least 90 days and remained stable across all pH and temperatures assessed, with pH 7.4 and 25 °C being optimal. The data collectively suggested that the HIV/TB multiplex detection technology we developed has the potential for use to diagnose HIV and TB co-infection, and thus can be developed further for the purpose.
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Affiliation(s)
- Kanyane Malatji
- Array Technology Laboratory, Synthetic Biology and Precision Medicine Centre: Next Generation Health Cluster, Council for Scientific and Industrial Research, Brummeria, Pretoria 0001, South Africa (K.A.)
- Department of Virology, School of Pathology, Faculty of Health Sciences, University of the Witwatersrand, Braamfontein, Johannesburg 2000, South Africa;
| | - Advaita Singh
- Future Production: Chemicals Cluster, Council for Scientific and Industrial Research, Brummeria, Pretoria 0001, South Africa
| | - Christina Thobakgale
- Department of Virology, School of Pathology, Faculty of Health Sciences, University of the Witwatersrand, Braamfontein, Johannesburg 2000, South Africa;
- Centre for HIV and STIs, National Institute for Communicable Diseases, Sandringham, Johannesburg 2192, South Africa
| | - Kabamba Alexandre
- Array Technology Laboratory, Synthetic Biology and Precision Medicine Centre: Next Generation Health Cluster, Council for Scientific and Industrial Research, Brummeria, Pretoria 0001, South Africa (K.A.)
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Richter-Dahlfors A, Kärkkäinen E, Choong FX. Fluorescent optotracers for bacterial and biofilm detection and diagnostics. SCIENCE AND TECHNOLOGY OF ADVANCED MATERIALS 2023; 24:2246867. [PMID: 37680974 PMCID: PMC10481766 DOI: 10.1080/14686996.2023.2246867] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Revised: 07/03/2023] [Accepted: 08/07/2023] [Indexed: 09/09/2023]
Abstract
Effective treatment of bacterial infections requires methods that accurately and quickly identify which antibiotic should be prescribed. This review describes recent research on the development of optotracing methodologies for bacterial and biofilm detection and diagnostics. Optotracers are small, chemically well-defined, anionic fluorescent tracer molecules that detect peptide- and carbohydrate-based biopolymers. This class of organic molecules (luminescent conjugated oligothiophenes) show unique electronic, electrochemical and optical properties originating from the conjugated structure of the compounds. The photophysical properties are further improved as donor-acceptor-donor (D-A-D)-type motifs are incorporated in the conjugated backbone. Optotracers bind their biopolymeric target molecules via electrostatic interactions. Binding alters the optical properties of these tracer molecules, shown as altered absorption and emission spectra, as well as ON-like switch of fluorescence. As the optotracer provides a defined spectral signature for each binding partner, a fingerprint is generated that can be used for identification of the target biopolymer. Alongside their use for in situ experimentation, optotracers have demonstrated excellent use in studies of a number of clinically relevant microbial pathogens. These methods will find widespread use across a variety of communities engaged in reducing the effect of antibiotic resistance. This includes basic researchers studying molecular resistance mechanisms, academia and pharma developing new antimicrobials targeting biofilm infections and tests to diagnose biofilm infections, as well as those developing antibiotic susceptibility tests for biofilm infections (biofilm-AST). By iterating between the microbial world and that of plants, development of the optotracing technology has become a prime example of successful cross-feeding across the boundaries of disciplines. As optotracers offers a capacity to redefine the way we work with polysaccharides in the microbial world as well as with plant biomass, the technology is providing novel outputs desperately needed for global impact of the threat of antimicrobial resistance as well as our strive for a circular bioeconomy.
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Affiliation(s)
- Agneta Richter-Dahlfors
- AIMES – Center for the Advancement of Integrated Medical and Engineering Sciences at Karolinska Institutet and KTH Royal Institute of Technology, Stockholm, Sweden
- Department of Neuroscience, Karolinska Institutet, Stockholm, Sweden
- Department of Fiber and Polymer Technology, School of Chemistry, Biotechnology and Health, KTH Royal Institute of Technology, Stockholm, Sweden
| | - Elina Kärkkäinen
- AIMES – Center for the Advancement of Integrated Medical and Engineering Sciences at Karolinska Institutet and KTH Royal Institute of Technology, Stockholm, Sweden
- Department of Neuroscience, Karolinska Institutet, Stockholm, Sweden
| | - Ferdinand X. Choong
- AIMES – Center for the Advancement of Integrated Medical and Engineering Sciences at Karolinska Institutet and KTH Royal Institute of Technology, Stockholm, Sweden
- Department of Neuroscience, Karolinska Institutet, Stockholm, Sweden
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7
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Li S, Sharaf MG, Rowe EM, Serrano K, Devine DV, Unsworth LD. Hemocompatibility of β-Cyclodextrin-Modified (Methacryloyloxy)ethyl Phosphorylcholine Coated Magnetic Nanoparticles. Biomolecules 2023; 13:1165. [PMID: 37627230 PMCID: PMC10452919 DOI: 10.3390/biom13081165] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2023] [Revised: 07/12/2023] [Accepted: 07/18/2023] [Indexed: 08/27/2023] Open
Abstract
Adsorbing toxins from the blood to augment membrane-based hemodialysis is an active area of research. Films composed of β-cyclodextrin-co-(methacryloyloxy)ethyl phosphorylcholine (p(PMβCD-co-MPC)) with various monomer ratios were formed on magnetic nanoparticles and characterized. Surface chemistry effects on protein denaturation were evaluated and indicated that unmodified magnetic nanoparticles greatly perturbed the structure of proteins compared to coated particles. Plasma clotting assays were conducted to investigate the stability of plasma in the presence of particles, where a 2:2 monomer ratio yielded the best results for a given total surface area of particles. Total protein adsorption results revealed that modified surfaces exhibited reduced protein adsorption compared to bare particles, and pure MPC showed the lowest adsorption. Immunoblot results showed that fibrinogen, α1-antitrypsin, vitronectin, prekallikrein, antithrombin, albumin, and C3 correlated with film composition. Hemocompatibility testing with whole blood illustrated that the 1:3 ratio of CD to MPC had a negative impact on platelets, as evidenced by the increased activation, reduced response to an agonist, and reduced platelet count. Other formulations had statistically significant effects on platelet activation, but no formulation yielded apparent adverse effects on hemostasis. For the first time, p(PMβCD-co-MPC)-coated MNP were synthesized and their general hemocompatibility assessed.
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Affiliation(s)
- Shuhui Li
- Department of Chemical and Materials Engineering, University of Alberta, Edmonton, AB T6G 1H9, Canada; (S.L.)
| | - Mehdi Ghaffari Sharaf
- Department of Chemical and Materials Engineering, University of Alberta, Edmonton, AB T6G 1H9, Canada; (S.L.)
| | - Elyn M. Rowe
- Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, BC V6T 1Z7, Canada (K.S.); (D.V.D.)
| | - Katherine Serrano
- Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, BC V6T 1Z7, Canada (K.S.); (D.V.D.)
| | - Dana V. Devine
- Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, BC V6T 1Z7, Canada (K.S.); (D.V.D.)
| | - Larry D. Unsworth
- Department of Chemical and Materials Engineering, University of Alberta, Edmonton, AB T6G 1H9, Canada; (S.L.)
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8
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Ogunlusi T, Driskell JD. Controlled Temporal Release of Serum Albumin Immobilized on Gold Nanoparticles. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:3720-3728. [PMID: 36857653 DOI: 10.1021/acs.langmuir.2c03429] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Proteins adsorbed to gold nanoparticles (AuNPs) form bioconjugates and are critical to many emerging technologies for drug delivery, diagnostics, therapies, and other biomedical applications. A thorough understanding of the interaction between the immobilized protein and AuNP is essential for the bioconjugate to perform as designed. Here, we explore a correlation between the number of solvent-accessible thiol groups on a protein and the protein desorption rate from the AuNP surface in the presence of a competing protein. The chemical modification of human serum albumin (HSA) was carried out to install additional free thiols using Traut's reagent and create a library of HSA analogues by tailoring the molar excess of the Traut's reagent. We pre-adsorbed HSA variants onto the AuNP surface, and the resulting bioconjugates were then exposed to IgG antibody, and protein exchange was monitored as a function of time. We found that the rate of HSA displacement from the AuNP correlated with the experimentally measured number of accessible free thiol groups. Additionally, bioconjugates were synthesized using thiolated analogues of bovine serum albumin (BSA) and suspended in serum as a model for a complex sample matrix. Similarly, desorption rates with serum proteins were modulated with solvent-accessible thiols on the immobilized protein. These results further highlight the key role of Au-S bonds in the formation of protein-AuNP conjugates and provide a pathway to systematically control the number of free thiols on a protein, enabling the controlled release of protein from the surface of AuNP.
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Affiliation(s)
- Tosin Ogunlusi
- Department of Chemistry, Illinois State University, Normal, Illinois 61790, United States
| | - Jeremy D Driskell
- Department of Chemistry, Illinois State University, Normal, Illinois 61790, United States
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9
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Signaling strategies of silver nanoparticles in optical and electrochemical biosensors: considering their potential for the point-of-care. Mikrochim Acta 2023; 190:91. [PMID: 36790481 PMCID: PMC9930094 DOI: 10.1007/s00604-023-05666-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2022] [Accepted: 01/25/2023] [Indexed: 02/16/2023]
Abstract
Silver nanoparticles (AgNPs) have long been overshadowed by gold NPs' success in sensor and point-of-care (POC) applications. However, their unique physical, (electro)chemical, and optical properties make them excellently suited for such use, as long as their inherent higher instability toward oxidation is controlled. Recent advances in this field provide novel strategies that demonstrate that the AgNPs' inherent capabilities improve sensor performance and enable the specific detection of analytes at low concentrations. We provide an overview of these advances by focusing on the nanosized Ag (in the range of 1-100 nm) properties with emphasis on optical and electrochemical biosensors. Furthermore, we critically assess their potential for point-of-care sensors discussing advantages as well as limitations for each detection technique. We can conclude that, indeed, strategies using AgNP are ready for sensitive POC applications; however, research focusing on the simplification of assay procedures is direly needed for AgNPs to make the successful jump into actual applications.
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10
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Ohayon D, Renn D, Wustoni S, Guo K, Druet V, Hama A, Chen X, Maria IP, Singh S, Griggs S, Schroeder BC, Rueping M, McCulloch I, Inal S. Interactions of Catalytic Enzymes with n-Type Polymers for High-Performance Metabolite Sensors. ACS APPLIED MATERIALS & INTERFACES 2023; 15:9726-9739. [PMID: 36749895 PMCID: PMC9951220 DOI: 10.1021/acsami.2c20502] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Accepted: 01/25/2023] [Indexed: 06/18/2023]
Abstract
The tight regulation of the glucose concentration in the body is crucial for balanced physiological function. We developed an electrochemical transistor comprising an n-type conjugated polymer film in contact with a catalytic enzyme for sensitive and selective glucose detection in bodily fluids. Despite the promise of these sensors, the property of the polymer that led to such high performance has remained unknown, with charge transport being the only characteristic under focus. Here, we studied the impact of the polymer chemical structure on film surface properties and enzyme adsorption behavior using a combination of physiochemical characterization methods and correlated our findings with the resulting sensor performance. We developed five n-type polymers bearing the same backbone with side chains differing in polarity and charge. We found that the nature of the side chains modulated the film surface properties, dictating the extent of interactions between the enzyme and the polymer film. Quartz crystal microbalance with dissipation monitoring studies showed that hydrophobic surfaces retained more enzymes in a densely packed arrangement, while hydrophilic surfaces captured fewer enzymes in a flattened conformation. X-ray photoelectron spectroscopy analysis of the surfaces revealed strong interactions of the enzyme with the glycolated side chains of the polymers, which improved for linear side chains compared to those for branched ones. We probed the alterations in the enzyme structure upon adsorption using circular dichroism, which suggested protein denaturation on hydrophobic surfaces. Our study concludes that a negatively charged, smooth, and hydrophilic film surface provides the best environment for enzyme adsorption with desired mass and conformation, maximizing the sensor performance. This knowledge will guide synthetic work aiming to establish close interactions between proteins and electronic materials, which is crucial for developing high-performance enzymatic metabolite biosensors and biocatalytic charge-conversion devices.
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Affiliation(s)
- David Ohayon
- Organic
Bioelectronics Laboratory, Biological and Environmental Science and
Engineering Division, King Abdullah University
of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia
| | - Dominik Renn
- Catalysis
Center, King Abdullah University of Science
and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia
| | - Shofarul Wustoni
- Organic
Bioelectronics Laboratory, Biological and Environmental Science and
Engineering Division, King Abdullah University
of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia
| | - Keying Guo
- Organic
Bioelectronics Laboratory, Biological and Environmental Science and
Engineering Division, King Abdullah University
of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia
| | - Victor Druet
- Organic
Bioelectronics Laboratory, Biological and Environmental Science and
Engineering Division, King Abdullah University
of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia
| | - Adel Hama
- Organic
Bioelectronics Laboratory, Biological and Environmental Science and
Engineering Division, King Abdullah University
of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia
| | - Xingxing Chen
- Physical
Science and Engineering Division, KAUST, Thuwal 23955-6900, Saudi Arabia
| | - Iuliana Petruta Maria
- Department
of Chemistry, Chemistry Research Laboratory, University of Oxford, Oxford OX1 3TA, U.K.
| | - Saumya Singh
- Department
of Chemistry, University of College London, 20 Gordon Street, London WC1H 0AJ, U.K.
| | - Sophie Griggs
- Department
of Chemistry, Chemistry Research Laboratory, University of Oxford, Oxford OX1 3TA, U.K.
| | - Bob C. Schroeder
- Department
of Chemistry, University of College London, 20 Gordon Street, London WC1H 0AJ, U.K.
| | - Magnus Rueping
- Catalysis
Center, King Abdullah University of Science
and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia
| | - Iain McCulloch
- Physical
Science and Engineering Division, KAUST, Thuwal 23955-6900, Saudi Arabia
- Department
of Chemistry, Chemistry Research Laboratory, University of Oxford, Oxford OX1 3TA, U.K.
| | - Sahika Inal
- Organic
Bioelectronics Laboratory, Biological and Environmental Science and
Engineering Division, King Abdullah University
of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia
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11
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A combined computational and experimental approach predicts thrombin adsorption to zeolites. Colloids Surf B Biointerfaces 2023; 221:113007. [DOI: 10.1016/j.colsurfb.2022.113007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2022] [Revised: 10/25/2022] [Accepted: 11/03/2022] [Indexed: 11/08/2022]
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12
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Rodrigues AF, da Silva AF, da Silva FL, dos Santos KM, de Oliveira MP, Nobre MM, Catumba BD, Sales MB, Silva AR, Braz AKS, Cavalcante AL, Alexandre JY, Junior PG, Valério RB, de Castro Bizerra V, do Santos JC. A scientometric analysis of research progress and trends in the design of laccase biocatalysts for the decolorization of synthetic dyes. Process Biochem 2023. [DOI: 10.1016/j.procbio.2023.01.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
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13
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Serizawa T, Yamaguchi S, Amitani M, Ishii S, Tsuyuki H, Tanaka Y, Sawada T, Kawamura I, Watanabe G, Tanaka M. Alkyl chain length-dependent protein nonadsorption and adsorption properties of crystalline alkyl β-celluloside assemblies. Colloids Surf B Biointerfaces 2022; 220:112898. [DOI: 10.1016/j.colsurfb.2022.112898] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2022] [Revised: 09/28/2022] [Accepted: 10/01/2022] [Indexed: 11/27/2022]
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14
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Gago D, Corvo MC, Chagas R, Ferreira LM, Coelhoso I. Protein Adsorption Performance of a Novel Functionalized Cellulose-Based Polymer. Polymers (Basel) 2022; 14:polym14235122. [PMID: 36501515 PMCID: PMC9736165 DOI: 10.3390/polym14235122] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2022] [Revised: 11/10/2022] [Accepted: 11/21/2022] [Indexed: 11/27/2022] Open
Abstract
Dicarboxymethyl cellulose (DCMC) was synthesized and tested for protein adsorption. The prepared polymer was characterized by inductively coupled plasma atomic emission spectrometry (ICP-AES), attenuated total reflection Fourier-transform infrared spectroscopy (ATR-FTIR) and solid state nuclear magnetic resonance (ssNMR) to confirm the functionalization of cellulose. This work shows that protein adsorption onto DCMC is charge dependent. The polymer adsorbs positively charged proteins, cytochrome C and lysozyme, with adsorption capacities of 851 and 571 mg g-1, respectively. In both experiments, the adsorption process follows the Langmuir adsorption isotherm. The adsorption kinetics by DCMC is well described by the pseudo second-order model, and adsorption equilibrium was reached within 90 min. Moreover, DCMC was successfully reused for five consecutive adsorption-desorption cycles, without compromising the removal efficiency (98-99%).
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Affiliation(s)
- Diana Gago
- LAQV-REQUIMTE, Chemistry Department, NOVA School of Science and Technology, NOVA University Lisbon, 2829-516 Caparica, Portugal
| | - Marta C. Corvo
- i3N/Cenimat, Materials Science Department, NOVA School of Science and Technology, NOVA University Lisbon, 2829-516 Caparica, Portugal
| | - Ricardo Chagas
- LAQV-REQUIMTE, Chemistry Department, NOVA School of Science and Technology, NOVA University Lisbon, 2829-516 Caparica, Portugal
- Food4Sustainability—Associação para a Inovação no Alimento Sustentável, Centro Empresarial de Idanha-a-Nova, Zona Industrial, 6060-182 Idanha-a-Nova, Portugal
| | - Luísa M. Ferreira
- LAQV-REQUIMTE, Chemistry Department, NOVA School of Science and Technology, NOVA University Lisbon, 2829-516 Caparica, Portugal
| | - Isabel Coelhoso
- LAQV-REQUIMTE, Chemistry Department, NOVA School of Science and Technology, NOVA University Lisbon, 2829-516 Caparica, Portugal
- Correspondence:
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15
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Ajdnik U, Luxbacher T, Zemljič LF. Proteins at polysaccharide-based biointerfaces: A comparative study of QCM-D and electrokinetic measurements. Colloids Surf B Biointerfaces 2022; 221:113011. [DOI: 10.1016/j.colsurfb.2022.113011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2022] [Revised: 10/28/2022] [Accepted: 11/07/2022] [Indexed: 11/09/2022]
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16
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Xie T, Brady A, Velarde C, Vaccarello DN, Callahan NW, Marino JP, Orski SV. Selective C-Terminal Conjugation of Protease-Derived Native Peptides for Proteomic Measurements. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2022; 38:9119-9128. [PMID: 35856835 DOI: 10.1021/acs.langmuir.2c00359] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Bottom-up proteomic experiments often require selective conjugation or labeling of the N- and/or C-termini of peptides resulting from proteolytic digestion. For example, techniques based on surface fluorescence imaging are emerging as a promising route to high-throughput protein sequencing but require the generation of peptide surface arrays immobilized through single C-terminal point attachment while leaving the N-terminus free. While several robust approaches are available for selective N-terminal conjugation, it has proven to be much more challenging to implement methods for selective labeling or conjugation of the C-termini that can discriminate between the C-terminal carboxyl group and other carboxyl groups on aspartate and glutamate residues. Further, many approaches based on conjugation through amide bond formation require protection of the N-terminus to avoid unwanted cross-linking reactions. To overcome these challenges, herein, we describe a new strategy for single-point selective immobilization of peptides generated by protease digestion via the C-terminus. The method involves immobilization of peptides via lysine amino acids which are found naturally at the C-terminal end of cleaved peptides from digestions of certain serine endoproteinases, like LysC. This lysine and the N-terminus, the sole two primary amines in the peptide fragments, are chemically reacted with a custom phenyl isothiocyanate (EPITC) that contains an alkyne handle. Subsequent exposure of the double-modified peptides to acid selectively cleaves the N-terminal amino acid, while the modified C-terminus lysine remains unchanged. The alkyne-modified peptides with free N-termini can then be immobilized on an azide surface through standard click chemistry. Using this general approach, surface functionalization is demonstrated using a combination of X-ray photoelectron spectroscopy (XPS), ellipsometry, and atomic force microscopy (AFM).
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Affiliation(s)
- Tian Xie
- National Institute of Standards & Technology, Gaithersburg, Maryland 20899, United States
- University of Maryland - Institute for Bioscience and Biotechnology Research, Rockville, Maryland 20850, United States
- Georgetown University, Washington, District of Columbia, 20057, United States
| | - Alexandria Brady
- University of Maryland - Institute for Bioscience and Biotechnology Research, Rockville, Maryland 20850, United States
| | - Cecilia Velarde
- University of Maryland - Institute for Bioscience and Biotechnology Research, Rockville, Maryland 20850, United States
| | - David N Vaccarello
- National Institute of Standards & Technology, Gaithersburg, Maryland 20899, United States
- University of Maryland - Institute for Bioscience and Biotechnology Research, Rockville, Maryland 20850, United States
| | - Nicholas W Callahan
- University of Maryland - Institute for Bioscience and Biotechnology Research, Rockville, Maryland 20850, United States
| | - John P Marino
- National Institute of Standards & Technology, Gaithersburg, Maryland 20899, United States
- University of Maryland - Institute for Bioscience and Biotechnology Research, Rockville, Maryland 20850, United States
| | - Sara V Orski
- National Institute of Standards & Technology, Gaithersburg, Maryland 20899, United States
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17
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Yang M, Shi W, Liu S, Xu K. Multifunctional diphenyl ether-based, cross-linked polyisocyanide for efficient iodine capture and NO2-/SO32- electrochemical probing. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.128680] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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18
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Drozd M, Duszczyk A, Ivanova P, Pietrzak M. Interactions of proteins with metal-based nanoparticles from a point of view of analytical chemistry - Challenges and opportunities. Adv Colloid Interface Sci 2022; 304:102656. [PMID: 35367856 DOI: 10.1016/j.cis.2022.102656] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2021] [Revised: 03/18/2022] [Accepted: 03/23/2022] [Indexed: 11/01/2022]
Abstract
Interactions of proteins with nanomaterials draw attention of many research groups interested in fundamental phenomena. However, alongside with valuable information regarding physicochemical aspects of such processes and their mechanisms, they more and more often prove to be useful from a point of view of bioanalytics. Deliberate use of processes based on adsorption of proteins on nanoparticles (or vice versa) allows for a development of new analytical methods and improvement of the existing ones. It also leads to obtaining of nanoparticles of desired properties and functionalities, which can be used as elements of analytical tools for various applications. Due to interactions with nanoparticles, proteins can also gain new functionalities or lose their interfering potential, which from perspective of bioanalytics seems to be very inviting and attractive. In the framework of this article we will discuss the bioanalytical potential of interactions of proteins with a chosen group of nanoparticles, and implementation of so driven processes for biosensing. Moreover, we will show both positive and negative (opportunities and challenges) aspects resulting from the presence of proteins in media/samples containing metal-based nanoparticles or their precursors.
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19
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Misiura A, Dutta C, Leung W, Zepeda O J, Terlier T, Landes CF. The competing influence of surface roughness, hydrophobicity, and electrostatics on protein dynamics on a self-assembled monolayer. J Chem Phys 2022; 156:094707. [DOI: 10.1063/5.0078797] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023] Open
Abstract
Surface morphology, in addition to hydrophobic and electrostatic effects, can alter how proteins interact with solid surfaces. Understanding the heterogeneous dynamics of protein adsorption on surfaces with varying roughness is experimentally challenging. In this work, we use single-molecule fluorescence microscopy to study the adsorption of α-lactalbumin protein on the glass substrate covered with a self-assembled monolayer (SAM) with varying surface concentrations. Two distinct interaction mechanisms are observed: localized adsorption/desorption and continuous-time random walk (CTRW). We investigate the origin of these two populations by simultaneous single-molecule imaging of substrates with both bare glass and SAM-covered regions. SAM-covered areas of substrates are found to promote CTRW, whereas glass surfaces promote localized motion. Contact angle measurements and atomic force microscopy imaging show that increasing SAM concentration results in both increasing hydrophobicity and surface roughness. These properties lead to two opposing effects: increasing hydrophobicity promotes longer protein flights, but increasing surface roughness suppresses protein dynamics resulting in shorter residence times. Our studies suggest that controlling hydrophobicity and roughness, in addition to electrostatics, as independent parameters could provide a means to tune desirable or undesirable protein interactions with surfaces.
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Affiliation(s)
| | - Chayan Dutta
- Department of Chemistry, Rice University, Houston, Texas 77005, USA
| | - Wesley Leung
- Applied Physics Graduate Program, Rice University, Houston, Texas 77005, USA
| | - Jorge Zepeda O
- Department of Electrical and Computer Engineering, Rice University, Houston, Texas 77005, USA
| | - Tanguy Terlier
- SIMS Laboratory, Shared Equipment Authority, Rice University, Houston, Texas 77005, USA
| | - Christy F. Landes
- Department of Chemistry, Rice University, Houston, Texas 77005, USA
- Department of Electrical and Computer Engineering, Rice University, Houston, Texas 77005, USA
- Chemical and Biomolecular Engineering, Rice University, Houston, Texas 77005, USA
- Smalley-Curl Institute, Rice University, Houston, Texas 77005, USA
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20
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Bourassin N, Barbault F, Baaden M, Sacquin-Mora S. Between Two Walls: Modeling the Adsorption Behavior of β-Glucosidase A on Bare and SAM-Functionalized Gold Surfaces. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2022; 38:1313-1323. [PMID: 35050631 DOI: 10.1021/acs.langmuir.1c01774] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
The efficient immobilization of enzymes on surfaces remains a complex but central issue in the biomaterials field, which requires us to understand this process at the atomic level. Using a multiscale approach combining all-atom molecular dynamics and coarse-grain Brownian dynamics simulations, we investigated the adsorption behavior of β-glucosidase A (βGA) on bare and self-assembled monolayer (SAM)-functionalized gold surfaces. We monitored the enzyme position and orientation during the molecular dynamics (MD) trajectories and measured the contacts it forms with both surfaces. While the adsorption process has little impact on the protein conformation, it can nonetheless perturb its mechanical properties and catalytic activity. Our results show that compared to the SAM-functionalized surface, the adsorption of βGA on bare gold is more stable, but less specific, and more likely to disrupt the enzyme's function. This observation emphasizes the fact that the structural organization of proteins at the solid interface is a key point when designing devices based on enzyme immobilization, as one must find an acceptable stability-activity trade-off.
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Affiliation(s)
- Nicolas Bourassin
- Laboratoire de Biochimie Théorique, UPR 9080, Université de Paris, CNRS, 13 rue Pierre et Marie Curie, 75005 Paris, France
- Institut de Biologie Physico-Chimique-Fondation Edmond de Rothschild, PSL Research University, 75005 Paris, France
| | | | - Marc Baaden
- Laboratoire de Biochimie Théorique, UPR 9080, Université de Paris, CNRS, 13 rue Pierre et Marie Curie, 75005 Paris, France
- Institut de Biologie Physico-Chimique-Fondation Edmond de Rothschild, PSL Research University, 75005 Paris, France
| | - Sophie Sacquin-Mora
- Laboratoire de Biochimie Théorique, UPR 9080, Université de Paris, CNRS, 13 rue Pierre et Marie Curie, 75005 Paris, France
- Institut de Biologie Physico-Chimique-Fondation Edmond de Rothschild, PSL Research University, 75005 Paris, France
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21
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Cho DH, Xie T, Mulcahey PJ, Kelleher NP, Hahm JI. Distinctive Adsorption Mechanism and Kinetics of Immunoglobulin G on a Nanoscale Polymer Surface. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2022; 38:1458-1470. [PMID: 35037456 DOI: 10.1021/acs.langmuir.1c02710] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Elucidation of protein adsorption beyond simple polymer surfaces to those presenting greater chemical complexity and nanoscopic features is critical to developing well-controlled nanobiomaterials and nanobiosensors. In this study, we repeatedly and faithfully track individual proteins on the same nanodomain areas of a block copolymer (BCP) surface and monitor the adsorption and assembly behavior of a model protein, immunoglobulin G (IgG), over time into a tight surface-packed structure. With discrete protein adsorption events unambiguously visualized at the biomolecular level, the detailed assembly and packing states of IgG on the BCP nanodomain surface are subsequently correlated to various regimes of IgG adsorption kinetic plots. Intriguing features, entirely different from those observed from macroscopic homopolymer templates, are identified from the IgG adsorption isotherms on the nanoscale, chemically varying BCP surface. They include the presence of two Langmuir-like adsorption segments and a nonmonotonic regime in the adsorption plot. Via correlation to time-corresponding topographic data, the unique isotherm features are explained with single biomolecule level details of the IgG adsorption pathway on the BCP. This work not only provides much needed, direct experimental evidence for time-resolved, single protein level, adsorption events on nanoscale polymer surfaces but also signifies mutual linking between specific topographic states of protein adsorption and assembly to particular segments of adsorption isotherms. From the fundamental research viewpoint, the correlative ability to examine the nanoscopic surface organizations of individual proteins and their local as well as global adsorption kinetic profiles will be highly valuable for accurately determining protein assembly mechanisms and interpreting protein adsorption kinetics on nanoscale surfaces. Application-wise, such knowledge will also be important for fundamentally guiding the design and development of biomaterials and biomedical devices that exploit nanoscale polymer architectures.
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Affiliation(s)
- David H Cho
- Department of Chemistry, Georgetown University, 37th & O Sts. NW., Washington, D.C. 20057, United States
| | - Tian Xie
- Department of Chemistry, Georgetown University, 37th & O Sts. NW., Washington, D.C. 20057, United States
| | - Patrick J Mulcahey
- Department of Chemistry, Georgetown University, 37th & O Sts. NW., Washington, D.C. 20057, United States
| | - Noah P Kelleher
- Department of Chemistry, Georgetown University, 37th & O Sts. NW., Washington, D.C. 20057, United States
| | - Jong-In Hahm
- Department of Chemistry, Georgetown University, 37th & O Sts. NW., Washington, D.C. 20057, United States
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22
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Wang S, Ou X, Yi M, Li J. Spontaneous desorption of protein from self-assembled monolayer (SAM)-coated gold nanoparticles induced by high temperature. Phys Chem Chem Phys 2022; 24:2363-2370. [PMID: 35018922 DOI: 10.1039/d1cp04000f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The nonspecific binding of proteins with nanomaterials (NMs) is a dynamic reversible process including both protein adsorption and desorption parts, which is crucial for controlled release of protein drug loaded by nanocarriers. The nonspecific binding of proteins is susceptible to high temperature, whereas its underlying mechanism still remains elusive. Here, the binding behavior of human serum albumin (HSA) with an amino-terminated self-assembled monolayer (SAM)-coated gold (111) surface was investigated by using molecular dynamics (MD) simulations. HSA binds to the SAM surface through salt bridges at 300 K. As the temperature increases to 350 K, HSA maintains its native structure, while the salt bridges largely diminish owing to the considerable lateral diffusion of HSA on the SAM. Moreover, the interfacial water located between HSA and the SAM gets increased and prevents the reformation of the salt bridges of HSA with the SAM, which reduces the binding affinity of HSA. And HSA eventually desorbs from the SAM. The depiction of thermally induced spontaneous protein desorption enriches our understanding of reversible binding behavior of protein with NMs, and may provide new insights into the controlled release of protein drugs delivered by using nanocarriers under the regulation of high temperature.
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Affiliation(s)
- Shuai Wang
- College of informatics, Huazhong Agricultural University, Wuhan 430070, China.,Department of Physics, Zhejiang University, Hangzhou 310027, China.
| | - Xinwen Ou
- Department of Physics, Zhejiang University, Hangzhou 310027, China.
| | - Ming Yi
- School of Mathematics and Physics, China University of Geosciences, Wuhan 430074, China.
| | - Jingyuan Li
- Department of Physics, Zhejiang University, Hangzhou 310027, China.
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23
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Hou Z, Jin Y, Li Y, Fan H, Xiao C, Li Q, Zhang Y. Immobilization of peroxisome proliferator-activated receptor gamma and the application in screening modulators of the receptor from herbal medicine. J Chromatogr B Analyt Technol Biomed Life Sci 2022; 1190:123098. [PMID: 35026651 DOI: 10.1016/j.jchromb.2022.123098] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Revised: 12/28/2021] [Accepted: 01/03/2022] [Indexed: 10/19/2022]
Abstract
Screening and identification of potential compounds from herbal medicine is a prevailing way to find a lead for the development of innovative drugs. This promotes the development of new methods that are feasible in complex matrices. Here, we described a one-step reversible methodology to immobilize nuclear peroxisome proliferator-activated receptor gamma (PPARγ) onto amino microsphere coated with a DNA strand specifically binding to the receptor. The specific interaction allowed us to achieve the immobilization of PPARγ by mixing the DNA modified microspheres with E. coli lysates expressing the receptor. Characterization of the immobilized receptor was carried out by morphology and binding specificity analysis. Feasibility of immobilized PPARγ in the drug-receptor interaction analysis was performed by an injection amount-dependent method. Besides, immobilized PPARγ was also applied in screening modulators of the receptor from Coptidis Rhizoma extract. The binding of the screened compounds to PPARγ was examined by time-resolved fluorescence resonance energy transfer assay. The results showed that immobilized PPARγ was stable for thirty days with a high-specificity of ligand recognition at the subtype receptor level. Berberine and palmatine were the bioactive compounds of Coptidis Rhizoma specifically binding to PPARγ. The two compounds exhibited half maximal inhibitory concentrations of 4.11 and 2.98 μM during their binding to the receptor. We concluded that the current method is possible to become a common strategy for the immobilization of nuclear receptors, and the immobilized receptor is a high throughput method for recognizing and separating the receptor modulators from complex matrices including herbal medicine.
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Affiliation(s)
- Zhaoling Hou
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Ministry of Life Sciences and Medicine, Northwest University, Xi'an 710069, China
| | - Yan Jin
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Ministry of Life Sciences and Medicine, Northwest University, Xi'an 710069, China
| | - Yuxin Li
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Ministry of Life Sciences and Medicine, Northwest University, Xi'an 710069, China
| | - Hushuai Fan
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Ministry of Life Sciences and Medicine, Northwest University, Xi'an 710069, China
| | - Chaoni Xiao
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Ministry of Life Sciences and Medicine, Northwest University, Xi'an 710069, China
| | - Qian Li
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Ministry of Life Sciences and Medicine, Northwest University, Xi'an 710069, China
| | - Yajun Zhang
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Ministry of Life Sciences and Medicine, Northwest University, Xi'an 710069, China.
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24
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Chang WH, Liu PY, Lin DE, Jiang YT, Lu CJ, Hsu YHH. Dynamic Protein Adsorption-Desorption Analysis of Contact Lenses in a Three-Dimensional-Printed Eye Model. Macromol Res 2022. [DOI: 10.1007/s13233-022-0003-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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25
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Lazarenko HO, Boiko IV. THE METHOD OF ATOMIC FORCE MICROSCOPY AS A POSSIBLE TOOL FOR TESTING THE BIOCOMPATIBILITY OF IMPLANTS IN TRAUMATOLOGY AND ORTHOPEDICS PRACTICE. WIADOMOSCI LEKARSKIE (WARSAW, POLAND : 1960) 2022; 75:2614-2618. [PMID: 36591742 DOI: 10.36740/wlek202211111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
OBJECTIVE The aim: To establish the possibility of using the atomic force microscope (AFM) to predict the body's reaction to the implant. PATIENTS AND METHODS Materials and methods: A total of 32 patients, 22 men and 10 women, the average age of the patients was 55±6 years, were included in the study. They performed pre- and post-operative testing of the biocompatibility of orthopedic implant materials with the patient's body with the help of AFM. RESULTS Results: According to the research, an increase in pro-inflammatory factors was found, which may indicate a constant inflammatory process, which is probably related to the presence of the implant. CONCLUSION Conclusions: On the basis of atomic force spectroscopy, an express method of testing biomaterials for compatibility with the body of a specific recipient and studying the effect of the reactions of recipient tissues on the surface of various implants has been developed. The obtained results can be useful in planning further clinical studies.
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Affiliation(s)
- Hlib O Lazarenko
- STATE INSTITUTION OF SCIENCE «RESEARCH AND PRACTICAL CENTER OF PREVENTIVE AND CLINICAL MEDICINE», KYIV, UKRAINE, STATE ADMINISTRATIVE DEPARTMENT, KYIV, UKRAINE
| | - Igor V Boiko
- STATE INSTITUTION OF SCIENCE «RESEARCH AND PRACTICAL CENTER OF PREVENTIVE AND CLINICAL MEDICINE», KYIV, UKRAINE, STATE ADMINISTRATIVE DEPARTMENT, KYIV, UKRAINE
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Mohd Asri MA, Nordin AN, Ramli N. Low-cost and cleanroom-free prototyping of microfluidic and electrochemical biosensors: Techniques in fabrication and bioconjugation. BIOMICROFLUIDICS 2021; 15:061502. [PMID: 34777677 PMCID: PMC8577868 DOI: 10.1063/5.0071176] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Accepted: 10/22/2021] [Indexed: 05/18/2023]
Abstract
Integrated microfluidic biosensors enable powerful microscale analyses in biology, physics, and chemistry. However, conventional methods for fabrication of biosensors are dependent on cleanroom-based approaches requiring facilities that are expensive and are limited in access. This is especially prohibitive toward researchers in low- and middle-income countries. In this topical review, we introduce a selection of state-of-the-art, low-cost prototyping approaches of microfluidics devices and miniature sensor electronics for the fabrication of sensor devices, with focus on electrochemical biosensors. Approaches explored include xurography, cleanroom-free soft lithography, paper analytical devices, screen-printing, inkjet printing, and direct ink writing. Also reviewed are selected surface modification strategies for bio-conjugates, as well as examples of applications of low-cost microfabrication in biosensors. We also highlight several factors for consideration when selecting microfabrication methods appropriate for a project. Finally, we share our outlook on the impact of these low-cost prototyping strategies on research and development. Our goal for this review is to provide a starting point for researchers seeking to explore microfluidics and biosensors with lower entry barriers and smaller starting investment, especially ones from low resource settings.
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Affiliation(s)
- Mohd Afiq Mohd Asri
- Department of Electrical and Computer Engineering, Kulliyyah of Engineering, International Islamic University Malaysia, 53100 Gombak, Selangor, Malaysia
| | - Anis Nurashikin Nordin
- Department of Electrical and Computer Engineering, Kulliyyah of Engineering, International Islamic University Malaysia, 53100 Gombak, Selangor, Malaysia
- Author to whom correspondence should be addressed:
| | - Nabilah Ramli
- Department of Mechanical Engineering, Kulliyyah of Engineering, International Islamic University Malaysia, 53100 Gombak, Selangor, Malaysia
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27
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Gondim DR, Cecilia JA, Rodrigues TNB, Vilarrasa-García E, Rodríguez-Castellón E, Azevedo DCS, Silva IJ. Protein Adsorption onto Modified Porous Silica by Single and Binary Human Serum Protein Solutions. Int J Mol Sci 2021; 22:9164. [PMID: 34502072 PMCID: PMC8430731 DOI: 10.3390/ijms22179164] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2021] [Revised: 08/16/2021] [Accepted: 08/21/2021] [Indexed: 12/17/2022] Open
Abstract
Typical porous silica (SBA-15) has been modified with pore expander agent (1,3,5-trimethylbenzene) and fluoride-species to diminish the length of the channels to obtain materials with different textural properties, varying the Si/Zr molar ratio between 20 and 5. These porous materials were characterized by X-ray Diffraction (XRD), N2 adsorption/desorption isotherms at -196 °C and X-ray Photoelectron Spectroscopy (XPS), obtaining adsorbent with a surface area between 420-337 m2 g-1 and an average pore diameter with a maximum between 20-25 nm. These materials were studied in the adsorption of human blood serum proteins (human serum albumin-HSA and immunoglobulin G-IgG). Generally, the incorporation of small proportions was favorable for proteins adsorption. The adsorption data revealed that the maximum adsorption capacity was reached close to the pI. The batch purification experiments in binary human serum solutions showed that Si sample has considerable adsorption for IgG while HSA adsorption is relatively low, so it is possible its separation.
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Affiliation(s)
- Diego R. Gondim
- Centro de Tecnologia, Grupo de Pesquisa em Separações por Adsorção—GPSA—Departamento de Engenharia Química, Campus do Pici, Bl. 709, Universidade Federal do Ceará, Fortaleza 60455-760, CE, Brazil; (D.R.G.); (T.N.B.R.); (E.V.-G.); (D.C.S.A.); (I.J.S.J.)
| | - Juan A. Cecilia
- Departamento de Química Inorgánica, Cristalografía y Mineralogía, Facultad de Ciencias, Campus de Teatinos, Universidad de Málaga, 29071 Malaga, Spain;
| | - Thaina N. B. Rodrigues
- Centro de Tecnologia, Grupo de Pesquisa em Separações por Adsorção—GPSA—Departamento de Engenharia Química, Campus do Pici, Bl. 709, Universidade Federal do Ceará, Fortaleza 60455-760, CE, Brazil; (D.R.G.); (T.N.B.R.); (E.V.-G.); (D.C.S.A.); (I.J.S.J.)
| | - Enrique Vilarrasa-García
- Centro de Tecnologia, Grupo de Pesquisa em Separações por Adsorção—GPSA—Departamento de Engenharia Química, Campus do Pici, Bl. 709, Universidade Federal do Ceará, Fortaleza 60455-760, CE, Brazil; (D.R.G.); (T.N.B.R.); (E.V.-G.); (D.C.S.A.); (I.J.S.J.)
| | - Enrique Rodríguez-Castellón
- Departamento de Química Inorgánica, Cristalografía y Mineralogía, Facultad de Ciencias, Campus de Teatinos, Universidad de Málaga, 29071 Malaga, Spain;
| | - Diana C. S. Azevedo
- Centro de Tecnologia, Grupo de Pesquisa em Separações por Adsorção—GPSA—Departamento de Engenharia Química, Campus do Pici, Bl. 709, Universidade Federal do Ceará, Fortaleza 60455-760, CE, Brazil; (D.R.G.); (T.N.B.R.); (E.V.-G.); (D.C.S.A.); (I.J.S.J.)
| | - Ivanildo J. Silva
- Centro de Tecnologia, Grupo de Pesquisa em Separações por Adsorção—GPSA—Departamento de Engenharia Química, Campus do Pici, Bl. 709, Universidade Federal do Ceará, Fortaleza 60455-760, CE, Brazil; (D.R.G.); (T.N.B.R.); (E.V.-G.); (D.C.S.A.); (I.J.S.J.)
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28
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Yan Z, He M, Zhang Y, Hu G, Li H. Methylene blue-enhanced electrochemical oxidation of tyrosine residues in native/denatured bovine serum albumin and HIV-1 Tat peptide. J Electroanal Chem (Lausanne) 2021. [DOI: 10.1016/j.jelechem.2021.115532] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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29
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Liu C, Yu J, You J, Wang Z, Zhang M, Shi L, Zhuang X. Cellulose/Chitosan Composite Sponge for Efficient Protein Adsorption. Ind Eng Chem Res 2021. [DOI: 10.1021/acs.iecr.1c01133] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Chang Liu
- State Key Laboratory of Separation Membranes and Membrane Processes, Tiangong University, Tianjin 300387, China
- School of Textile Science and Engineering, Tiangong University, Tianjin 300387, China
| | - Jiajing Yu
- School of Textile Science and Engineering, Tiangong University, Tianjin 300387, China
| | - Junyang You
- School of Textile Science and Engineering, Tiangong University, Tianjin 300387, China
| | - Zhihua Wang
- School of Textile Science and Engineering, Tiangong University, Tianjin 300387, China
| | - Meiling Zhang
- School of Textile Science and Engineering, Tiangong University, Tianjin 300387, China
| | - Lei Shi
- School of Textile Science and Engineering, Tiangong University, Tianjin 300387, China
| | - Xupin Zhuang
- State Key Laboratory of Separation Membranes and Membrane Processes, Tiangong University, Tianjin 300387, China
- School of Textile Science and Engineering, Tiangong University, Tianjin 300387, China
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30
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Hong T, Zheng R, Qiu L, Zhou S, Chao H, Li Y, Rui W, Cui P, Ni X, Tan S, Jiang P, Wang J. Fluorescence coupled capillary electrophoresis as a strategy for tetrahedron DNA analysis. Talanta 2021; 228:122225. [PMID: 33773730 DOI: 10.1016/j.talanta.2021.122225] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2020] [Revised: 02/10/2021] [Accepted: 02/13/2021] [Indexed: 10/22/2022]
Abstract
A strategy based on fluorescence coupled capillary electrophoresis (CE-FL) was developed for analyzing tetrahedron DNA (TD) and TD-doxorubicin (DOX) conjugate. Capillary gel electrophoresis exhibited desirable performance for separating TD and DNA strands. Under the optimized conditions, satisfactory repeatability concerning run-to-run and interday repeatability was obtained, and relative standard deviation value of resolution (n = 6) was 0.64%. Furthermore, the combination of CE and fluorescence detection provided a sensitive platform for quantifying TD concentration and calculating the damage degree of TD. The electrophoretograms indicated that CE-FL was a suitable TD assay method with high specificity and sensitivity. In addition, the application of CE-FL for TD fluorescence resonance energy transfer (FRET) research was also explored. Two types of DNA strands were utilized to interfere the formation of TD. The impact of partially complementary chain and completely complementary chain on FRET signal was explored, and the influence mechanism was discussed. After applying CE-FL for characterizing TD, we also combine CE and FRET to analyze TD-DOX conjugate. CE presented a favourable technique to monitor DOX loading and releasing processes. These noteworthy results offered a stepping stone for DNA nanomaterials assay by using CE-FL.
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Affiliation(s)
- Tingting Hong
- School of Pharmacy, Changzhou University, Changzhou, Jiangsu, 213164, China
| | - Ronghui Zheng
- School of Pharmacy, Changzhou University, Changzhou, Jiangsu, 213164, China
| | - Lin Qiu
- School of Pharmacy, Changzhou University, Changzhou, Jiangsu, 213164, China
| | - Shuwen Zhou
- School of Pharmacy, Changzhou University, Changzhou, Jiangsu, 213164, China
| | - Hufei Chao
- School of Pharmacy, Changzhou University, Changzhou, Jiangsu, 213164, China
| | - Ying Li
- School of Pharmacy, Changzhou University, Changzhou, Jiangsu, 213164, China
| | - Wen Rui
- School of Pharmacy, Changzhou University, Changzhou, Jiangsu, 213164, China
| | - Pengfei Cui
- School of Pharmacy, Changzhou University, Changzhou, Jiangsu, 213164, China
| | - Xinye Ni
- The Affiliated Changzhou No. 2 People's Hospital of Nanjing Medical University, Changzhou, Jiangsu, PR China.
| | - Songwen Tan
- Xiangya School of Pharmaceutical Sciences, Central South University, 172 Tongzipo Road, Changsha, Hunan, 410013, China; Jiangsu Dawning Pharmaceutical Co., Ltd., Changzhou, Jiangsu, 213100, China.
| | - Pengju Jiang
- School of Pharmacy, Changzhou University, Changzhou, Jiangsu, 213164, China.
| | - Jianhao Wang
- School of Pharmacy, Changzhou University, Changzhou, Jiangsu, 213164, China; Changzhou Le Sun Pharmaceuticals Co., Ltd., Changzhou, Jiangsu, 213125, China; Jiangsu Yue Zhi Biopharmaceutical Co., Ltd., Changzhou, Jiangsu, 213125, China.
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31
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Wätzig H, Hoffstedt M, Krebs F, Minkner R, Scheller C, Zagst H. Protein analysis and stability: Overcoming trial-and-error by grouping according to physicochemical properties. J Chromatogr A 2021; 1649:462234. [PMID: 34038775 DOI: 10.1016/j.chroma.2021.462234] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2021] [Revised: 04/27/2021] [Accepted: 04/28/2021] [Indexed: 12/15/2022]
Abstract
Today proteins are possibly the most important class of substances. Yet new tasks for proteins are still often solved by trial-and-error approaches. However, in some areas these euphemistically called "screening approaches" are not suitable. E.g. stability tests just take too long and therefore require a more strategic, target-orientated concept. This concept is available by grouping proteins according to their physicochemical properties and then pulling out the right drawer for new tasks. These properties include size, then charge and hydrophobicity as well as their patchinesses, and the degree of order. In addition, solubility, the content of (free) enthalpy, aromatic-amino-acid- and α/β-frequency as well as helix capping, and corresponding patchiness, the number of specific motifs and domains as well as the typical concentration range can be helpful to discriminate between different groups of proteins. Analyzing correlations will reduce the necessary amount of parameters and additional ones, which may be still undiscovered at the present time, can be identified looking at protein subgroups with similar physicochemical properties which still behave heterogeneously. Step-by-step the methodology will be improved. Possibly protein stability will be the driver of this process, but all other areas such as production, purification and analytics including sample pre-treatment and the choice of appropriate separation conditions for e.g. chromatography and electrophoresis will profit from a rational strategy.
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Affiliation(s)
- Hermann Wätzig
- Technische Universität Braunschweig, Institute of Medicinal and Pharmaceutical Chemistry, Beethovenstraße 55, Braunschweig 38106, Germany.
| | - Marc Hoffstedt
- Technische Universität Braunschweig, Institute of Medicinal and Pharmaceutical Chemistry, Beethovenstraße 55, Braunschweig 38106, Germany
| | - Finja Krebs
- Technische Universität Braunschweig, Institute of Medicinal and Pharmaceutical Chemistry, Beethovenstraße 55, Braunschweig 38106, Germany
| | - Robert Minkner
- Technische Universität Braunschweig, Institute of Medicinal and Pharmaceutical Chemistry, Beethovenstraße 55, Braunschweig 38106, Germany
| | - Christin Scheller
- Technische Universität Braunschweig, Institute of Medicinal and Pharmaceutical Chemistry, Beethovenstraße 55, Braunschweig 38106, Germany
| | - Holger Zagst
- Technische Universität Braunschweig, Institute of Medicinal and Pharmaceutical Chemistry, Beethovenstraße 55, Braunschweig 38106, Germany
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32
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Mechanism of Myoglobin Molecule Adsorption on Silica: QCM, OWLS and AFM Investigations. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:ijerph18094944. [PMID: 34066515 PMCID: PMC8124256 DOI: 10.3390/ijerph18094944] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 05/01/2021] [Accepted: 05/04/2021] [Indexed: 11/16/2022]
Abstract
Adsorption kinetics of myoglobin on silica was investigated using the quartz crystal microbalance (QCM) and the optical waveguide light-mode spectroscopy (OWLS). Measurements were carried out for the NaCl concentration of 0.01 M and 0.15 M. A quantitative analysis of the kinetic adsorption and desorption runs acquired from QCM allowed to determine the maximum coverage of irreversibly bound myoglobin molecules. At a pH of 3.5-4 this was equal to 0.60 mg m-2 and 1.3 mg m-2 for a NaCl concentration of 0.01 M and 0.15 M, respectively, which agrees with the OWLS measurements. The latter value corresponds to the closely packed monolayer of molecules predicted from the random sequential adsorption approach. The fraction of reversibly bound protein molecules and their biding energy were also determined. It is observed that at larger pHs, the myoglobin adsorption kinetics was much slower. This behavior was attributed to the vanishing net charge that decreased the binding energy of molecules with the substrate. These results can be exploited to develop procedures for preparing myoglobin layers at silica substrates of well-controlled coverage useful for biosensing purposes.
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33
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Vian R, Salehi H, Lapierre M, Cuisinier F, Cavaillès V, Balme S. Adsorption of proteins on TiO 2 particles influences their aggregation and cell penetration. Food Chem 2021; 360:130003. [PMID: 33993073 DOI: 10.1016/j.foodchem.2021.130003] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2020] [Revised: 04/09/2021] [Accepted: 05/01/2021] [Indexed: 12/21/2022]
Abstract
TiO2 nanoparticles known as E171 are one controversial food additive due to its potential toxicity. In this work, the main hypothesis is that the proteins adsorbed on the TiO2 nanoparticles prevent their aggregation and favor the cell penetration. To do so, the TiO2 nanoparticles were coated with gelatin and β-lactoglobulin to reach interfacial concentrations about 0.25 mg/mg and 0.32 mg/mg, respectively. The measurement of NP size showed that the protein coating improve the colloidal stability of TiO2 nanoparticles. The FTIR analysis suggests that the β-lactoglobulin structure is modified after adsorption. The penetration of TiO2 penetration inside human intestinal epithelial cells was shown and quantify by using confocal Raman microscopy. The promoting role of the protein coating on the cell penetration was demonstrated for both the gelatin and β-lactoglobulin. Finally, the results allow establishing a correlation between the ability of proteins to prevent NP aggregation and the cell penetration.
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Affiliation(s)
- Romain Vian
- IRCM, Institut de Recherche en Cancérologie de Montpellier, INSERM U1194, Université Montpellier, Montpellier F-34298, France
| | | | - Marion Lapierre
- IRCM, Institut de Recherche en Cancérologie de Montpellier, INSERM U1194, Université Montpellier, Montpellier F-34298, France
| | | | - Vincent Cavaillès
- IRCM, Institut de Recherche en Cancérologie de Montpellier, INSERM U1194, Université Montpellier, Montpellier F-34298, France
| | - Sébastien Balme
- IEM, Institut Européen des Membranes, UMR 5635 Université Montpellier, CNRS, ENSCM, Place Eugene Bataillon, F-34095 Montpellier cedex 5, France.
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34
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A Fluidics-Based Biosensor to Detect and Characterize Inhibition Patterns of Organophosphate to Acetylcholinesterase in Food Materials. MICROMACHINES 2021; 12:mi12040397. [PMID: 33916863 PMCID: PMC8065683 DOI: 10.3390/mi12040397] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/04/2021] [Revised: 03/31/2021] [Accepted: 04/01/2021] [Indexed: 11/17/2022]
Abstract
A chip-based electrochemical biosensor is developed herein for the detection of organophosphate (OP) in food materials. The principle of the sensing platform is based on the inhibition of dimethoate (DMT), a typical OP that specifically inhibits acetylcholinesterase (AChE) activity. Carbon nanotube-modified gold electrodes functionalized with polydiallyldimethylammonium chloride (PDDA) and oxidized nanocellulose (NC) were investigated for the sensing of OP, yielding high sensitivity. Compared with noncovalent adsorption and deposition in bovine serum albumin, bioconjugation with lysine side chain activation allowed the enzyme to be stable over three weeks at room temperature. The total amount of AChE was quantified, whose activity inhibition was highly linear with respect to DMT concentration. Increased incubation times and/or DMT concentration decreased current flow. The composite electrode showed a sensitivity 4.8-times higher than that of the bare gold electrode. The biosensor was challenged with organophosphate-spiked food samples and showed a limit of detection (LOD) of DMT at 4.1 nM, with a limit of quantification (LOQ) at 12.6 nM, in the linear range of 10 nM to 1000 nM. Such performance infers significant potential for the use of this system in the detection of organophosphates in real samples.
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35
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Chauhan D, Yadav AK, Solanki PR. Carbon cloth-based immunosensor for detection of 25-hydroxy vitamin D 3. Mikrochim Acta 2021; 188:145. [PMID: 33792779 PMCID: PMC8012417 DOI: 10.1007/s00604-021-04751-y] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Accepted: 02/08/2021] [Indexed: 12/31/2022]
Abstract
Vitamin D (VD) deficiency is a global health concern due to its serious health impacts, and at present, the monitoring of VD status is expensive. Here, a novel immunosensor for sensitive and label-free detection of 25-hydroxy vitamin D3 (25VD3) is reported. Nanostructured cerium(IV) oxide (nCeO2) was anchored onto carbon cloth (CC) via electrophoretic deposition to fabricate a nanoplatform (nCeO2/CC). Subsequently, bioactive molecules (anti-25VD3 and BSA) were introduced to fabricate the nanobioplatform BSA/anti-25VD3/nCeO2/CC as an immunosensor. The analytical performance of the developed immunosensor was studied towards 25VD3 detection. The immunosensor provides a broad linear range of 1-200 ng mL-1, high sensitivity of 2.08 μA ng−1 mL cm−2, a detection limit of 4.63 ng mL−1, and a response time of 15 min, which is better than that of previous reports. The biosensor exhibited high selectivity, good reproducibility, and excellent stability for about 45 days. The potential application of the proposed immunosensor was observed for real serum samples towards 25VD3 detection that demonstrated a high correlation with the conventional enzyme-linked immunosorbent assay. Graphical abstract ![]()
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Affiliation(s)
- Deepika Chauhan
- Special Centre for Nanoscience, Jawaharlal Nehru University, New Delhi, 110067, India
| | - Amit K Yadav
- Special Centre for Nanoscience, Jawaharlal Nehru University, New Delhi, 110067, India
| | - Pratima R Solanki
- Special Centre for Nanoscience, Jawaharlal Nehru University, New Delhi, 110067, India.
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36
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Barberi J, Spriano S. Titanium and Protein Adsorption: An Overview of Mechanisms and Effects of Surface Features. MATERIALS (BASEL, SWITZERLAND) 2021; 14:1590. [PMID: 33805137 PMCID: PMC8037091 DOI: 10.3390/ma14071590] [Citation(s) in RCA: 53] [Impact Index Per Article: 17.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/05/2021] [Revised: 03/09/2021] [Accepted: 03/19/2021] [Indexed: 12/14/2022]
Abstract
Titanium and its alloys, specially Ti6Al4V, are among the most employed materials in orthopedic and dental implants. Cells response and osseointegration of implant devices are strongly dependent on the body-biomaterial interface zone. This interface is mainly defined by proteins: They adsorb immediately after implantation from blood and biological fluids, forming a layer on implant surfaces. Therefore, it is of utmost importance to understand which features of biomaterials surfaces influence formation of the protein layer and how to guide it. In this paper, relevant literature of the last 15 years about protein adsorption on titanium-based materials is reviewed. How the surface characteristics affect protein adsorption is investigated, aiming to provide an as comprehensive a picture as possible of adsorption mechanisms and type of chemical bonding with the surface, as well as of the characterization techniques effectively applied to model and real implant surfaces. Surface free energy, charge, microroughness, and hydroxylation degree have been found to be the main surface parameters to affect the amount of adsorbed proteins. On the other hand, the conformation of adsorbed proteins is mainly dictated by the protein structure, surface topography at the nano-scale, and exposed functional groups. Protein adsorption on titanium surfaces still needs further clarification, in particular concerning adsorption from complex protein solutions. In addition, characterization techniques to investigate and compare the different aspects of protein adsorption on different surfaces (in terms of roughness and chemistry) shall be developed.
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Affiliation(s)
- Jacopo Barberi
- Department of Applied Science and Technology, Politecnico di Torino, 10129 Turin, Italy;
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37
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Fonseca WT, Castro KR, Oliveira TR, Faria RC. Disposable and Flexible Electrochemical Paper‐based Analytical Devices Using Low‐cost Conductive Ink. ELECTROANAL 2021. [DOI: 10.1002/elan.202060564] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Wilson Tiago Fonseca
- Department of Chemistry Federal University of São Carlos Rod. Washington Luís km 235 – SP-310 São Carlos SP 13565–905 Brazil
| | - Karla Ribeiro Castro
- Department of Chemistry Federal University of São Carlos Rod. Washington Luís km 235 – SP-310 São Carlos SP 13565–905 Brazil
| | - Tássia Regina Oliveira
- Department of Chemistry Federal University of São Carlos Rod. Washington Luís km 235 – SP-310 São Carlos SP 13565–905 Brazil
| | - Ronaldo Censi Faria
- Department of Chemistry Federal University of São Carlos Rod. Washington Luís km 235 – SP-310 São Carlos SP 13565–905 Brazil
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38
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Smith AK, Soltani M, Wilkerson JW, Timmerman BD, Zhao EL, Bundy BC, Knotts TA. Coarse-grained simulation of PEGylated and tethered protein devices at all experimentally accessible surface residues on β-lactamase for stability analysis and comparison. J Chem Phys 2021; 154:075102. [PMID: 33607875 DOI: 10.1063/5.0032019] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
PEGylated and surface-tethered proteins are used in a variety of biotechnological applications, but traditional methods offer little control over the placement of the functionalization sites on the protein. Fortunately, recent experimental methods functionalize the protein at any location on the amino acid sequence, so the question becomes one of selecting the site that will result in the best protein function. This work shows how molecular simulation can be used to screen potential attachment sites for surface tethering or PEGylation. Previous simulation work has shown promise in this regard for a model protein, but these studies are limited to screening only a few of the surface-accessible sites or only considered surface tethering or PEGylation separately rather than their combined effects. This work is done to overcome these limitations by screening all surface-accessible functionalization sites on a protein of industrial and therapeutic importance (TEM-1) and to evaluate the effects of tethering and PEGylation simultaneously in an effort to create a more accurate screen. The results show that functionalization site effectiveness appears to be a function of super-secondary and tertiary structures rather than the primary structure, as is often currently assumed. Moreover, sites in the middle of secondary structure elements, and not only those in loops regions, are shown to be good options for functionalization-a fact not appreciated in current practice. Taken as a whole, the results show how rigorous molecular simulation can be done to identify candidate amino acids for functionalization on a protein to facilitate the rational design of protein devices.
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Affiliation(s)
- Addison K Smith
- Department of Chemical Engineering at Brigham Young University, Provo, Utah 84602, USA
| | - Mehran Soltani
- Department of Chemical Engineering at Brigham Young University, Provo, Utah 84602, USA
| | - Joshua W Wilkerson
- Department of Chemical Engineering at Brigham Young University, Provo, Utah 84602, USA
| | - Brandon D Timmerman
- Department of Chemical Engineering at Brigham Young University, Provo, Utah 84602, USA
| | - Emily Long Zhao
- Department of Chemical Engineering at Brigham Young University, Provo, Utah 84602, USA
| | - Bradley C Bundy
- Department of Chemical Engineering at Brigham Young University, Provo, Utah 84602, USA
| | - Thomas A Knotts
- Department of Chemical Engineering at Brigham Young University, Provo, Utah 84602, USA
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39
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Preparation of electroconductive film based on self-assembled aminothiophene/poly(γ-glutamate) nanoparticles and its application in biosensor. Colloid Polym Sci 2021. [DOI: 10.1007/s00396-021-04816-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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40
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Park H, Ma GJ, Yoon BK, Cho NJ, Jackman JA. Comparing Protein Adsorption onto Alumina and Silica Nanomaterial Surfaces: Clues for Vaccine Adjuvant Development. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2021; 37:1306-1314. [PMID: 33444030 DOI: 10.1021/acs.langmuir.0c03396] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Protein adsorption onto nanomaterial surfaces is important for various nanobiotechnology applications such as biosensors and drug delivery. Within this scope, there is growing interest to develop alumina- and silica-based nanomaterial vaccine adjuvants and an outstanding need to compare protein adsorption onto alumina- and silica-based nanomaterial surfaces. Herein, using alumina- and silica-coated arrays of silver nanodisks with plasmonic properties, we conducted localized surface plasmon resonance (LSPR) experiments to evaluate real-time adsorption of bovine serum albumin (BSA) protein onto alumina and silica surfaces. BSA monomers and oligomers were prepared in different water-ethanol mixtures and both adsorbing species consistently showed quicker adsorption kinetics and more extensive adsorption-related spreading on alumina surfaces as compared to on silica surfaces. We rationalized these experimental observations in terms of the electrostatic forces governing protein-surface interactions on the two nanomaterial surfaces and the results support that more rigidly attached BSA protein-based coatings can be formed on alumina-based nanomaterial surfaces. Collectively, the findings in this study provide fundamental insight into protein-surface interactions at nanomaterial interfaces and can help to guide the development of protein-based coatings for medical and biotechnology applications such as vaccines.
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Affiliation(s)
- Hyeonjin Park
- School of Chemical Engineering, Sungkyunkwan University, Suwon 16419, Republic of Korea
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue 639798, Singapore
| | - Gamaliel Junren Ma
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue 639798, Singapore
| | - Bo Kyeong Yoon
- School of Chemical Engineering, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Nam-Joon Cho
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue 639798, Singapore
| | - Joshua A Jackman
- School of Chemical Engineering, Sungkyunkwan University, Suwon 16419, Republic of Korea
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41
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Mandal D, Biswas S, Chowdhury A, De D, Tiwary CS, Gupta AN, Singh T, Chandra A. Hierarchical cage-frame type nanostructure of CeO 2 for bio sensing applications: from glucose to protein detection. NANOTECHNOLOGY 2021; 32:025504. [PMID: 32932238 DOI: 10.1088/1361-6528/abb8a8] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Self-assembled hierarchical nanostructures are slowly superseding their conventional counterparts for use in biosensors. These morphologies show high surface area with tunable porosity and packing density. Modulating the interfacial interactions and subsequent particle assembly occurring at the water-and-oil interface in inverse miniemulsions, are amongst the best strategies to stabilize various type of hollow nanostructures. The paper presents a successful protocol to obtain CeO2 hollow structures based biosensors that are useful for glucose to protein sensing. The fabricated glucose sensor is able to deliver high sensitivity (0.495 μA cm-2 nM-1), low detection limit (6.46 nM) and wide linear range (0 nM to 600 nM). CeO2 based bioelectrode can also be considered as a suitable candidate for protein sensors. It can detect protein concentrations varying from 0 to 30 µM, which is similar or higher than most reports in the literature. The limit of detection (LOD) for protein was ∼0.04 µM. Therefore, the hollow CeO2 electrodes, with excellent reproducibility, stability and repeatability, open a new area of application for cage-frame type particles.
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Affiliation(s)
- Debabrata Mandal
- School of Nanoscience and Technology, Indian Institute of Technology Kharagpur, Kharagpur 721302, India
- Department of Physics, Indian Institute of Technology Kharagpur, Kharagpur 721302, India
- Department of Metallurgical and Materials Engineering, Indian Institute of Technology Kharagpur, Kharagpur 721302, India
- School of Energy Science and Engineering, Indian Institute of Technology Kharagpur, Kharagpur 721302, India
| | - Sudipta Biswas
- Department of Physics, Indian Institute of Technology Kharagpur, Kharagpur 721302, India
| | - Ananya Chowdhury
- Department of Physics, Indian Institute of Technology Kharagpur, Kharagpur 721302, India
| | - Debajyoti De
- Department of Physics, Indian Institute of Technology Kharagpur, Kharagpur 721302, India
| | - Chandra Sekar Tiwary
- Department of Metallurgical and Materials Engineering, Indian Institute of Technology Kharagpur, Kharagpur 721302, India
| | - Amar Nath Gupta
- School of Nanoscience and Technology, Indian Institute of Technology Kharagpur, Kharagpur 721302, India
| | - Trilok Singh
- School of Energy Science and Engineering, Indian Institute of Technology Kharagpur, Kharagpur 721302, India
| | - Amreesh Chandra
- School of Nanoscience and Technology, Indian Institute of Technology Kharagpur, Kharagpur 721302, India
- Department of Physics, Indian Institute of Technology Kharagpur, Kharagpur 721302, India
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42
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Rakshit S, Ghosh S, Roy R, Bhattacharya SC. Non-enzymatic electrochemical glucose sensing by Cu2O octahedrons: elucidating the protein adsorption signature. NEW J CHEM 2021. [DOI: 10.1039/d0nj04431h] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Developing an electrochemical biosensor based on Cu2O octahedrons for rapid, sensitive and highly selective detection of glucose in real samples with an unprecedented analysis of their protein adsorption signature.
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Affiliation(s)
| | - Srabanti Ghosh
- Department of Chemical, Biological and Macromolecular Sciences
- S. N. Bose National Centre for Basic Sciences
- Kolkata 700 098
- India
| | - Rimi Roy
- Department of Chemistry
- Presidency University
- Kolkata 700 073
- India
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43
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Felisardo RJ, Luque AM, Silva QS, Soares CM, Fricks AT, Lima ÁS, Cavalcanti EB. Biosensor of horseradish peroxidase immobilized onto self-assembled monolayers: Optimization of the deposition enzyme concentration. J Electroanal Chem (Lausanne) 2020. [DOI: 10.1016/j.jelechem.2020.114784] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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44
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Aquino A, Conte-Junior CA. A Systematic Review of Food Allergy: Nanobiosensor and Food Allergen Detection. BIOSENSORS-BASEL 2020; 10:bios10120194. [PMID: 33260424 PMCID: PMC7760337 DOI: 10.3390/bios10120194] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/13/2020] [Revised: 11/22/2020] [Accepted: 11/25/2020] [Indexed: 12/23/2022]
Abstract
Several individuals will experience accidental exposure to an allergen. In this sense, the industry has invested in the processes of removing allergenic compounds in food. However, accidental exposure to allergenic proteins can result from allergenic substances not specified on labels. Analysis of allergenic foods is involved in methods based on immunological, genetic, and mass spectrometry. The traditional methods have some limitations, such as high cost. In recent years, biosensor and nanoparticles combined have emerged as sensitive, selective, low-cost, and time-consuming techniques that can replace classic techniques. Nevertheless, each nanomaterial has shown a different potential to specific allergens or classes. This review used Preferred Reporting Items for Systematic Reviews and the Meta-Analysis guidelines (PRISMA) to approach these issues. A total of 104 articles were retrieved from a standardized search on three databases (PubMed, Scopus and Web of Science). The systematic review article is organized by the category of allergen detection and nanoparticle detection. This review addresses the relevant biosensors and nanoparticles as gold, carbon, graphene, quantum dots to allergen protein detection. Among the selected articles it was possible to notice a greater potential application on the allergic proteins Ah, in peanuts and gold nanoparticle-base as a biosensor. We envision that in our review, the association between biosensor and nanoparticles has shown promise in the analysis of allergenic proteins present in different food samples.
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Affiliation(s)
- Adriano Aquino
- Center for Food Analysis (NAL), Technological Development Support Laboratory (LADETEC), Federal University of Rio de Janeiro (UFRJ), Cidade Universitária, Rio de Janeiro, RJ 21941-598, Brazil;
- Laboratory of Advanced Analysis in Biochemistry and Molecular Biology (LAABBM), Department of Biochemistry, Federal University of Rio de Janeiro (UFRJ), Cidade Universitária, Rio de Janeiro, RJ 21941-909, Brazil
- Nanotechnology Network, Carlos Chagas Filho Research Support Foundation of the State of Rio de Janeiro (FAPERJ), Rio de Janeiro, RJ 21941-909, Brazil
| | - Carlos Adam Conte-Junior
- Center for Food Analysis (NAL), Technological Development Support Laboratory (LADETEC), Federal University of Rio de Janeiro (UFRJ), Cidade Universitária, Rio de Janeiro, RJ 21941-598, Brazil;
- Laboratory of Advanced Analysis in Biochemistry and Molecular Biology (LAABBM), Department of Biochemistry, Federal University of Rio de Janeiro (UFRJ), Cidade Universitária, Rio de Janeiro, RJ 21941-909, Brazil
- Nanotechnology Network, Carlos Chagas Filho Research Support Foundation of the State of Rio de Janeiro (FAPERJ), Rio de Janeiro, RJ 21941-909, Brazil
- Graduate Program in Veterinary Hygiene (PPGHV), Faculty of Veterinary Medicine, Fluminense Federal University (UFF), Vital Brazil Filho, Niterói, RJ 24230-340, Brazil
- Graduate Program in Sanitary Surveillance (PPGVS), National Institute of Health Quality Control (INCQS), Oswaldo Cruz Foundation (FIOCRUZ), Rio de Janeiro, RJ 21040-900, Brazil
- Graduate Program in Chemistry (PGQu), Institute of Chemistry (IQ), Federal University of Rio de Janeiro (UFRJ), Cidade Universitária, Rio de Janeiro, RJ 21941-909, Brazil
- Graduate Program in Food Science (PPGCAL), Institute of Chemistry (IQ), Federal University of Rio de Janeiro (UFRJ), Cidade Universitária, Rio de Janeiro, RJ 21941-909, Brazil
- Correspondence: ; Tel.: +55-(21)-3938-7825
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Liu YL, Zhu J, Weng GJ, Li JJ, Zhao JW. Gold nanotubes: synthesis, properties and biomedical applications. Mikrochim Acta 2020; 187:612. [PMID: 33064202 DOI: 10.1007/s00604-020-04460-y] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2020] [Accepted: 07/16/2020] [Indexed: 11/25/2022]
Abstract
This review (with 106 references) summarizes the latest progress in the synthesis, properties and biomedical applications of gold nanotubes (AuNTs). Following an introduction into the field, a first large section covers two popular AuNTs synthesis methods. The hard template method introduces anodic alumina oxide template (AAO) and track-etched membranes (TeMs), while the sacrificial template method based on galvanic replacement introduces bimetallic, trimetallic AuNTs and AuNT-semiconductor hybrid materials. Then, the factors affecting the morphology of AuNTs are discussed. The next section covers their unique surface plasmon resonance (SPR), surface-enhanced Raman scattering (SERS) and their catalytic properties. This is followed by overviews on the applications of AuNTs in biosensors, protein transportation, photothermal therapy and imaging. Several tables are presented that give an overview on the wealth of synthetic methods, morphology factors and biological application. A concluding section summarizes the current status, addresses current challenges and gives an outlook on potential applications of AuNTs in biochemical detection and drug delivery.Graphical abstract.
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Affiliation(s)
- Yan-Ling Liu
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, 710049, People's Republic of China
| | - Jian Zhu
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, 710049, People's Republic of China.
| | - Guo-Jun Weng
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, 710049, People's Republic of China
| | - Jian-Jun Li
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, 710049, People's Republic of China
| | - Jun-Wu Zhao
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, 710049, People's Republic of China.
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Cabaleiro-Lago C, Lundqvist M. The Effect of Nanoparticles on the Structure and Enzymatic Activity of Human Carbonic Anhydrase I and II. Molecules 2020; 25:E4405. [PMID: 32992797 PMCID: PMC7582742 DOI: 10.3390/molecules25194405] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2020] [Revised: 09/14/2020] [Accepted: 09/18/2020] [Indexed: 11/24/2022] Open
Abstract
Human carbonic anhydrases (hCAs) belong to a well characterized group of metalloenzymes that catalyze the conversion of carbonic dioxide into bicarbonate. There are currently 15 known human isoforms of carbonic anhydrase with different functions and distribution in the body. This links to the relevance of hCA variants to several diseases such as glaucoma, epilepsy, mountain sickness, ulcers, osteoporosis, obesity and cancer. This review will focus on two of the human isoforms, hCA I and hCA II. Both are cytosolic enzymes with similar topology and 60% sequence homology but different catalytic efficiency and stability. Proteins in general adsorb on surfaces and this is also the case for hCA I and hCA II. The adsorption process can lead to alteration of the original function of the protein. However, if the function is preserved interesting biotechnological applications can be developed. This review will cover the knowledge about the interaction between hCAs and nanomaterials. We will highlight how the interaction may lead to conformational changes that render the enzyme inactive. Moreover, the importance of different factors on the final effect on hCAs, such as protein stability, protein hydrophobic or charged patches and chemistry of the nanoparticle surface will be discussed.
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Affiliation(s)
- Celia Cabaleiro-Lago
- Department of Environmental Science and Bioscience, Kristianstad University, 29188 Kristianstad, Sweden;
| | - Martin Lundqvist
- Department of Biochemistry and Structural Biology, Lund University, 22100 Lund, Sweden
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Bourassin N, Baaden M, Lojou E, Sacquin-Mora S. Implicit Modeling of the Impact of Adsorption on Solid Surfaces for Protein Mechanics and Activity with a Coarse-Grained Representation. J Phys Chem B 2020; 124:8516-8523. [PMID: 32924507 DOI: 10.1021/acs.jpcb.0c05347] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Surface immobilized enzymes play a key role in numerous biotechnological applications such as biosensors, biofuel cells, or biocatalytic synthesis. As a consequence, the impact of adsorption on the enzyme structure, dynamics, and function needs to be understood on the molecular level as it is critical for the improvement of these technologies. With this perspective in mind, we used a theoretical approach for investigating local protein flexibility on the residue scale that couples a simplified protein representation with an elastic network and Brownian dynamics simulations. The impact of protein adsorption on a solid surface is implicitly modeled via additional external constraints between the residues in contact with the surface. We first performed calculations on a redox enzyme, bilirubin oxidase (BOD) from M. verrucaria, to study the impact of adsorption on its mechanical properties. The resulting rigidity profiles show that, in agreement with the available experimental data, the mechanical variations observed in the adsorbed BOD will depend on its orientation and its anchor residues (i.e., residues that are in contact with the functionalized surface). Additional calculations on ribonuclease A and nitroreductase shed light on how seemingly stable adsorbed enzymes can nonetheless display an important decrease in their catalytic activity resulting from a perturbation of their mechanics and internal dynamics.
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Affiliation(s)
- Nicolas Bourassin
- CNRS, Laboratoire de Biochimie Théorique, UPR 9080, Université de Paris, 13 rue Pierre et Marie Curie, 75005 Paris, France.,Institut de Biologie Physico-Chimique-Fondation Edmond de Rotschild, PSL Research University, 75006 Paris, France
| | - Marc Baaden
- CNRS, Laboratoire de Biochimie Théorique, UPR 9080, Université de Paris, 13 rue Pierre et Marie Curie, 75005 Paris, France.,Institut de Biologie Physico-Chimique-Fondation Edmond de Rotschild, PSL Research University, 75006 Paris, France
| | - Elisabeth Lojou
- CNRS, Bioénergétique et Ingénierie des Protéines, UMR 7281, Aix Marseille Univ, 31, chemin Joseph Aiguier, CS 70071, 13402 Cedex 09 Marseille, France
| | - Sophie Sacquin-Mora
- CNRS, Laboratoire de Biochimie Théorique, UPR 9080, Université de Paris, 13 rue Pierre et Marie Curie, 75005 Paris, France.,Institut de Biologie Physico-Chimique-Fondation Edmond de Rotschild, PSL Research University, 75006 Paris, France
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Ma GJ, Ferhan AR, Jackman JA, Cho NJ. Elucidating How Different Amphipathic Stabilizers Affect BSA Protein Conformational Properties and Adsorption Behavior. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2020; 36:10606-10614. [PMID: 32787011 DOI: 10.1021/acs.langmuir.0c02048] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Natural proteins such as bovine serum albumin (BSA) are readily extracted from biological fluids and widely used in various applications such as drug delivery and surface coatings. It is standard practice to dope BSA proteins with an amphipathic stabilizer, most commonly fatty acids, during purification steps to maintain BSA conformational properties. There have been extensive studies investigating how fatty acids and related amphiphiles affect solution-phase BSA conformational properties, while it is far less understood how amphipathic stabilizers might influence noncovalent BSA adsorption onto solid supports, which is practically relevant to form surface coatings. Herein, we systematically investigated the binding interactions between BSA proteins and different molar ratios of caprylic acid (CA), monocaprylin (MC), and methyl caprylate (ME) amphiphiles-all of which have 8-carbon-long, saturated hydrocarbon chains with distinct headgroups-and resulting effects on BSA adsorption behavior on silica surfaces. Our findings revealed that anionic CA had the greatest binding affinity to BSA, which translated into greater solution-phase conformational stability and reduced adsorption-related conformational changes along with relatively low packing densities in fabricated BSA adlayers. On the other hand, nonionic MC had moderate binding affinity to BSA and could stabilize BSA conformational properties in the solution and adsorbed states while also enabling BSA adlayers to form with higher packing densities. We discuss physicochemical factors that contribute to these performance differences, and our findings demonstrate how rational selection of amphiphile type and amount can enable control over BSA adlayer properties, which could lead to improved BSA protein-based surface coatings.
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Affiliation(s)
- Gamaliel Junren Ma
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798
| | - Abdul Rahim Ferhan
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798
| | - Joshua A Jackman
- School of Chemical Engineering, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Nam-Joon Cho
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798
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Zhao X, Jin Y, Yuan X, Hou Z, Chen Z, Fu X, Li Q, Wang J, Zhang Y. Covalent Inhibitor-Based One-Step Method for Endothelin Receptor A Immobilization: from Ligand Recognition to Lead Identification. Anal Chem 2020; 92:13750-13758. [DOI: 10.1021/acs.analchem.0c01807] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Xinfeng Zhao
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education; College of Life Sciences, Northwest University, Xi’an 710069, China
| | - Yahui Jin
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education; College of Life Sciences, Northwest University, Xi’an 710069, China
| | - Xinyi Yuan
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education; College of Life Sciences, Northwest University, Xi’an 710069, China
| | - Zhaoling Hou
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education; College of Life Sciences, Northwest University, Xi’an 710069, China
| | - Ziyue Chen
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education; College of Life Sciences, Northwest University, Xi’an 710069, China
| | - Xiaoying Fu
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education; College of Life Sciences, Northwest University, Xi’an 710069, China
| | - Qian Li
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education; College of Life Sciences, Northwest University, Xi’an 710069, China
| | - Jing Wang
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education; College of Life Sciences, Northwest University, Xi’an 710069, China
| | - Yajun Zhang
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education; College of Life Sciences, Northwest University, Xi’an 710069, China
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Regiart M, Fernández-Baldo MA, Navarro P, Pereira SV, Raba J, Messina GA. Nanostructured electrode using CMK-8/CuNPs platform for herbicide detection in environmental samples. Microchem J 2020. [DOI: 10.1016/j.microc.2020.105014] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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