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Bai H, Yuan M, Wang X, Wang X, Che J. Development of a Gold Nanoparticle-Functionalized Surface Plasmon Resonance Assay for the Sensitive Detection of Monoclonal Antibodies and Its Application in Pharmacokinetics. Drug Metab Dispos 2019; 47:1361-1367. [PMID: 31324700 DOI: 10.1124/dmd.119.086249] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2019] [Accepted: 07/15/2019] [Indexed: 11/22/2022] Open
Abstract
As a prominent human therapeutic, therapeutic monoclonal antibodies (mAbs) have attracted increasing attention in the past decade due to their high-targeting specificity, low toxicity, and prolonged efficacy. Systematic pharmacokinetic analysis of mAbs not only largely facilitates the understanding of their biologic functions but also promotes the development of therapeutic drug discovery, early clinical trial implementation, and therapeutic monitoring. However, the extremely complex nature of biomatrices and the especially low dosages of mAbs make their detection in biomatrices and further pharmacokinetic analysis highly challenging. Therefore, a method capable of reliably, quickly, and sensitively quantifying mAbs in biomatrices is urgently needed. In this work, we developed and evaluated an gold nanoparticle-functionalized surface plasmon resonance assay for cetuximab (C225) detection and pharmacokinetic analysis in rhesus monkeys. Combining its advantages of label-free pretreatment and amplified signal response, the lower limit of quantitation of C225 in monkey serum was reduced to 0.0125 μg/ml, and the linear range had an order of magnitude comparable to that of an ELISA-based method. Furthermore, the pharmacokinetics of C225 in rhesus monkeys was studied after intravenous infusions of single doses at 7.5, 24, and 75 mg/kg. The concentration of C225 in monkey serum was detectable after dosing for 720 hours. We believe that this new strategy will be applicable as a general protocol for mAb quantification, pharmacokinetic characteristic determination, and toxicokinetic analysis during drug development.
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Affiliation(s)
- Haihong Bai
- Phase I Clinical Trial Center, Beijing Shijitan Hospital of Capital Medical University, Beijing, PR China (H.B., Xin.W.); State Key Laboratory of Toxicology and Medical Countermeasures, Beijing Institute of Pharmacology and Toxicology, Beijing, PR China (M.Y., J.C.); and Chinese Pharmaceutical Association, Beijing, PR China (Xia.W.)
| | - Mei Yuan
- Phase I Clinical Trial Center, Beijing Shijitan Hospital of Capital Medical University, Beijing, PR China (H.B., Xin.W.); State Key Laboratory of Toxicology and Medical Countermeasures, Beijing Institute of Pharmacology and Toxicology, Beijing, PR China (M.Y., J.C.); and Chinese Pharmaceutical Association, Beijing, PR China (Xia.W.)
| | - Xiaojing Wang
- Phase I Clinical Trial Center, Beijing Shijitan Hospital of Capital Medical University, Beijing, PR China (H.B., Xin.W.); State Key Laboratory of Toxicology and Medical Countermeasures, Beijing Institute of Pharmacology and Toxicology, Beijing, PR China (M.Y., J.C.); and Chinese Pharmaceutical Association, Beijing, PR China (Xia.W.)
| | - Xinghe Wang
- Phase I Clinical Trial Center, Beijing Shijitan Hospital of Capital Medical University, Beijing, PR China (H.B., Xin.W.); State Key Laboratory of Toxicology and Medical Countermeasures, Beijing Institute of Pharmacology and Toxicology, Beijing, PR China (M.Y., J.C.); and Chinese Pharmaceutical Association, Beijing, PR China (Xia.W.)
| | - Jinjing Che
- Phase I Clinical Trial Center, Beijing Shijitan Hospital of Capital Medical University, Beijing, PR China (H.B., Xin.W.); State Key Laboratory of Toxicology and Medical Countermeasures, Beijing Institute of Pharmacology and Toxicology, Beijing, PR China (M.Y., J.C.); and Chinese Pharmaceutical Association, Beijing, PR China (Xia.W.)
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Månsson C, van Cruchten RTP, Weininger U, Yang X, Cukalevski R, Arosio P, Dobson CM, Knowles T, Akke M, Linse S, Emanuelsson C. Conserved S/T Residues of the Human Chaperone DNAJB6 Are Required for Effective Inhibition of Aβ42 Amyloid Fibril Formation. Biochemistry 2018; 57:4891-4902. [DOI: 10.1021/acs.biochem.8b00353] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Cecilia Månsson
- Department of Biochemistry and Structural Biology, Center for Molecular Protein Science, Lund University, 221 00 Lund, Sweden
| | - Remco T. P. van Cruchten
- Department of Biochemistry and Structural Biology, Center for Molecular Protein Science, Lund University, 221 00 Lund, Sweden
| | - Ulrich Weininger
- Department of Biophysical Chemistry, Center for Molecular Protein Science, Lund University, 221 00 Lund, Sweden
| | - Xiaoting Yang
- Department of Biochemistry and Structural Biology, Center for Molecular Protein Science, Lund University, 221 00 Lund, Sweden
| | - Risto Cukalevski
- Department of Biochemistry and Structural Biology, Center for Molecular Protein Science, Lund University, 221 00 Lund, Sweden
| | - Paolo Arosio
- Department of Chemistry and Center for Misfolding Diseases, University of Cambridge, Cambridge CB2 1EW, U.K
| | - Christopher M. Dobson
- Department of Chemistry and Center for Misfolding Diseases, University of Cambridge, Cambridge CB2 1EW, U.K
| | - Tuomas Knowles
- Department of Chemistry and Center for Misfolding Diseases, University of Cambridge, Cambridge CB2 1EW, U.K
- Cavendish Laboratory, Department of Physics, JJ Thomson Avenue, Cambridge CB3 0HE, U.K
| | - Mikael Akke
- Department of Biophysical Chemistry, Center for Molecular Protein Science, Lund University, 221 00 Lund, Sweden
| | - Sara Linse
- Department of Biochemistry and Structural Biology, Center for Molecular Protein Science, Lund University, 221 00 Lund, Sweden
| | - Cecilia Emanuelsson
- Department of Biochemistry and Structural Biology, Center for Molecular Protein Science, Lund University, 221 00 Lund, Sweden
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Lago S, Nadai M, Rossetto M, Richter SN. Surface Plasmon Resonance kinetic analysis of the interaction between G-quadruplex nucleic acids and an anti-G-quadruplex monoclonal antibody. Biochim Biophys Acta Gen Subj 2018. [PMID: 29524541 PMCID: PMC5988565 DOI: 10.1016/j.bbagen.2018.03.002] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
BACKGROUND G-quadruplexes (G4s) are nucleic acids secondary structures formed in guanine-rich sequences. Anti-G4 antibodies represent a tool for the direct investigation of G4s in cells. Surface Plasmon Resonance (SPR) is a highly sensitive technology, suitable for assessing the affinity between biomolecules. We here aimed at improving the orientation of an anti-G4 antibody on the SPR sensor chip to optimize detection of binding antigens. METHODS SPR was employed to characterize the anti-G4 antibody interaction with G4 and non-G4 oligonucleotides. Dextran-functionalized sensor chips were used both in covalent coupling and capturing procedures. RESULTS The use of two leading molecule for orienting the antibody of interest allowed to improve its activity from completely non-functional to 65% active. The specificity of the anti-G4 antobody for G4 structures could thus be assessed with high sensitivity and reliability. CONCLUSIONS Optimization of the immobilization protocol for SPR biosensing, allowed us to determine the anti-G4 antibody affinity and specificity for G4 antigens with higher sensitivity with respect to other in vitro assays such as ELISA. Anti-G4 antibody specificity is a fundamental assumption for the future utilization of this kind of antibodies for monitoring G4s directly in cells. GENERAL SIGNIFICANCE The heterogeneous orientation of amine-coupling immobilized ligands is a general problem that often leads to partial or complete inactivation of the molecules. Here we describe a new strategy for improving ligand orientation: driving it from two sides. This principle can be virtually applied to every molecule that loses its activity or is poorly immobilized after standard coupling to the SPR chip surface.
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Affiliation(s)
- Sara Lago
- Department of Molecular Medicine, University of Padua, via A. Gabelli 63, 35121 Padua, Italy
| | - Matteo Nadai
- Department of Molecular Medicine, University of Padua, via A. Gabelli 63, 35121 Padua, Italy
| | - Monica Rossetto
- Department of Molecular Medicine, University of Padua, via A. Gabelli 63, 35121 Padua, Italy
| | - Sara N Richter
- Department of Molecular Medicine, University of Padua, via A. Gabelli 63, 35121 Padua, Italy.
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Bivalent kinetic binding model to surface plasmon resonance studies of antigen-antibody displacement reactions. Anal Biochem 2017; 518:110-125. [DOI: 10.1016/j.ab.2016.11.012] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2016] [Revised: 11/09/2016] [Accepted: 11/17/2016] [Indexed: 12/20/2022]
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Cree SL, Fredericks R, Miller A, Pearce FG, Filichev V, Fee C, Kennedy MA. DNA G-quadruplexes show strong interaction with DNA methyltransferases in vitro. FEBS Lett 2016; 590:2870-83. [PMID: 27468168 DOI: 10.1002/1873-3468.12331] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2016] [Revised: 07/07/2016] [Accepted: 07/21/2016] [Indexed: 12/16/2022]
Abstract
The DNA methyltransferase enzymes (DNMTs) catalyzing cytosine methylation do so at specific locations of the genome, although with some level of redundancy. The de novo methyltransferases DNMT3A and 3B play a vital role in methylating the genome of the developing embryo in regions devoid of methylation marks. The ability of DNMTs to colocalize at sites of DNA damage is suggestive that recognition of mispaired bases and unusual structures is inherent to the function of these proteins. We provide evidence for G-quadruplex formation within imprinted gene promoters, and report high-affinity binding of recombinant human DNMTs to such DNA G-quadruplexes in vitro. These observations suggest a potential interaction of G-quadruplexes with the DNA methylation machinery, which may be of epigenetic and biological significance.
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Affiliation(s)
- Simone L Cree
- Department of Pathology, University of Otago, Christchurch, New Zealand
| | - Rayleen Fredericks
- Department of Chemical and Process Engineering, University of Canterbury, Christchurch, New Zealand
- Biomolecular Interaction Centre, University of Canterbury, Christchurch, New Zealand
| | - Allison Miller
- Department of Pathology, University of Otago, Christchurch, New Zealand
| | - F Grant Pearce
- Biomolecular Interaction Centre, University of Canterbury, Christchurch, New Zealand
- School of Biological Sciences, University of Canterbury, Christchurch, New Zealand
| | - Vyacheslav Filichev
- Institute of Fundamental Sciences, Massey University, Palmerston North, New Zealand
| | - Conan Fee
- Department of Chemical and Process Engineering, University of Canterbury, Christchurch, New Zealand
- Biomolecular Interaction Centre, University of Canterbury, Christchurch, New Zealand
| | - Martin A Kennedy
- Department of Pathology, University of Otago, Christchurch, New Zealand
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Furukawa A, Konuma T, Yanaka S, Sugase K. Quantitative analysis of protein-ligand interactions by NMR. PROGRESS IN NUCLEAR MAGNETIC RESONANCE SPECTROSCOPY 2016; 96:47-57. [PMID: 27573180 DOI: 10.1016/j.pnmrs.2016.02.002] [Citation(s) in RCA: 52] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/19/2015] [Revised: 02/21/2016] [Accepted: 02/21/2016] [Indexed: 06/06/2023]
Abstract
Protein-ligand interactions have been commonly studied through static structures of the protein-ligand complex. Recently, however, there has been increasing interest in investigating the dynamics of protein-ligand interactions both for fundamental understanding of the underlying mechanisms and for drug development. NMR is a versatile and powerful tool, especially because it provides site-specific quantitative information. NMR has widely been used to determine the dissociation constant (KD), in particular, for relatively weak interactions. The simplest NMR method is a chemical-shift titration experiment, in which the chemical-shift changes of a protein in response to ligand titration are measured. There are other quantitative NMR methods, but they mostly apply only to interactions in the fast-exchange regime. These methods derive the dissociation constant from population-averaged NMR quantities of the free and bound states of a protein or ligand. In contrast, the recent advent of new relaxation-based experiments, including R2 relaxation dispersion and ZZ-exchange, has enabled us to obtain kinetic information on protein-ligand interactions in the intermediate- and slow-exchange regimes. Based on R2 dispersion or ZZ-exchange, methods that can determine the association rate, kon, dissociation rate, koff, and KD have been developed. In these approaches, R2 dispersion or ZZ-exchange curves are measured for multiple samples with different protein and/or ligand concentration ratios, and the relaxation data are fitted to theoretical kinetic models. It is critical to choose an appropriate kinetic model, such as the two- or three-state exchange model, to derive the correct kinetic information. The R2 dispersion and ZZ-exchange methods are suitable for the analysis of protein-ligand interactions with a micromolar or sub-micromolar dissociation constant but not for very weak interactions, which are typical in very fast exchange. This contrasts with the NMR methods that are used to analyze population-averaged NMR quantities. Essentially, to apply NMR successfully, both the type of experiment and equation to fit the data must be carefully and specifically chosen for the protein-ligand interaction under analysis. In this review, we first explain the exchange regimes and kinetic models of protein-ligand interactions, and then describe the NMR methods that quantitatively analyze these specific interactions.
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Affiliation(s)
- Ayako Furukawa
- Bioorganic Research Institute, Suntory Foundation for Life Sciences, 1-1-1 Wakayamadai, Shimamoto, Mishima, Osaka 618-8503, Japan; Graduate School of Medical Life Science, Yokohama City University, 1-7-29 Suehiro-cho, Tsurumi-ku, Yokohama 230-0045, Japan
| | - Tsuyoshi Konuma
- Bioorganic Research Institute, Suntory Foundation for Life Sciences, 1-1-1 Wakayamadai, Shimamoto, Mishima, Osaka 618-8503, Japan; Department of Structural and Chemical Biology, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Saeko Yanaka
- Bioorganic Research Institute, Suntory Foundation for Life Sciences, 1-1-1 Wakayamadai, Shimamoto, Mishima, Osaka 618-8503, Japan; Department of Life and Coordination-Complex Molecular Science, Biomolecular Functions, Institute of Molecular Science, National Institute of Natural Sciences, Japan
| | - Kenji Sugase
- Bioorganic Research Institute, Suntory Foundation for Life Sciences, 1-1-1 Wakayamadai, Shimamoto, Mishima, Osaka 618-8503, Japan; Department of Molecular Engineering, Graduate School of Engineering, Kyoto University, Kyoto-Daigaku Katsura, Nishikyo-Ku, Kyoto 615-8510, Japan.
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Stern D, Pauly D, Zydek M, Müller C, Avondet MA, Worbs S, Lisdat F, Dorner MB, Dorner BG. Simultaneous differentiation and quantification of ricin and agglutinin by an antibody-sandwich surface plasmon resonance sensor. Biosens Bioelectron 2016; 78:111-117. [DOI: 10.1016/j.bios.2015.11.020] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2015] [Revised: 10/23/2015] [Accepted: 11/08/2015] [Indexed: 01/26/2023]
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Zhang B, Salieb-Beugelaar GB, Nigo MM, Weidmann M, Hunziker P. Diagnosing dengue virus infection: rapid tests and the role of micro/nanotechnologies. NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE 2015; 11:1745-61. [PMID: 26093055 DOI: 10.1016/j.nano.2015.05.009] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/24/2015] [Revised: 05/15/2015] [Accepted: 05/25/2015] [Indexed: 12/18/2022]
Abstract
UNLABELLED Due to the progressive spread of the dengue virus and a rising incidence of dengue disease, its rapid diagnosis is important for developing countries and of increasing relevance for countries in temperate climates. Recent advances in bioelectronics, micro- and nanofabrication technologies have led to new miniaturized point-of-care devices and analytical platforms suited for rapid detection of infections. Starting from the available tests for dengue diagnosis, this review examines emerging rapid, micro/nanotechnologies-based tools, including label-free biosensor methods, microarray and microfluidic platforms, which hold significant potential, but still need further development and evaluation. The epidemiological and clinical setting as key determinants for selecting the best analytical strategy in patients presenting with fever is then discussed. This review is aimed at the clinicians and microbiologists to deepen understanding and enhance application of dengue diagnostics, and also serves as knowledge base for researchers and test developers to overcome the challenges posed by this disease. FROM THE CLINICAL EDITOR Dengue disease remains a significant problem in many developing countries. Unfortunately rapid diagnosis with easy and low cost tests for this disease is currently still not realized. In this comprehensive review, the authors highlighted recent advances in nanotechnology which would enable development in this field, which would result in beneficial outcomes to the population.
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Affiliation(s)
- Bei Zhang
- Nanomedicine Research Laboratory, Medical Intensive Care Clinic, University Hospital Basel, Basel, Switzerland.
| | - Georgette B Salieb-Beugelaar
- Nanomedicine Research Laboratory, Medical Intensive Care Clinic, University Hospital Basel, Basel, Switzerland; CLINAM-European Foundation for Clinical Nanomedicine, Basel, Switzerland.
| | - Maurice Mutro Nigo
- Nanomedicine Research Laboratory, Medical Intensive Care Clinic, University Hospital Basel, Basel, Switzerland; Institut Supérieur des Techniques Médicales-NYANKUNDE, Bunia, Congo.
| | | | - Patrick Hunziker
- Nanomedicine Research Laboratory, Medical Intensive Care Clinic, University Hospital Basel, Basel, Switzerland; CLINAM-European Foundation for Clinical Nanomedicine, Basel, Switzerland.
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Somasundaram B, Fee CJ, Fredericks R, Watson AJA, Fairbanks AJ. Development of a surface plasmon resonance assay to measure the binding affinity of wild-type influenza neuraminidase and its H274Y mutant to the antiviral drug zanamivir. J Mol Recognit 2015; 28:87-95. [PMID: 25599664 DOI: 10.1002/jmr.2417] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2014] [Revised: 07/02/2014] [Accepted: 08/10/2014] [Indexed: 11/09/2022]
Abstract
Influenza is one of the most common infections of the upper respiratory tract. Antiviral drugs that are currently used to treat influenza, such as oseltamivir and zanamivir, are neuraminidase (NA) inhibitors. However, the virus may develop resistance through single-point mutations of NA. Antiviral resistance is currently monitored by a labelled enzymatic assay, which can be inconsistent because of the short half-life of the labelled product and variations in the assay conditions. In this paper, we describe a label-free surface plasmon resonance (SPR) assay for measuring the binding affinity of NA-drug interactions. Wild-type (WT) NA and a histidine 274 tyrosine (H274Y) mutant were expressed in High Five™ (Trichoplusia ni) insect cells. A spacer molecule (1,6-hexanediamine) was site-specifically conjugated to the 7-hydroxyl group of zanamivir, which is not involved in binding to NA, and the construct was immobilized onto a SPR sensor Chip to obtain a final immobilization response of 431 response units. Binding responses obtained for WT and H274Y mutant NAs were fitted to a simple Langmuir 1:1 model with drift to obtain the association (ka ) and dissociation (kd ) rate constants. The ratio between the binding affinities for the two isoforms was comparable to literature values obtained using labelled enzyme assays. Significant potential exists for an extension of this approach to test for drug resistance of further NA mutants against zanamivir and other antiviral drugs, perhaps paving the way for a reliable SPR biosensor assay that may replace labelled enzymatic assays.
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Affiliation(s)
- Balaji Somasundaram
- Biomolecular Interaction Centre, University of Canterbury, Private Bag 4800, Christchurch, New Zealand, 8140; Department of Chemical and Process Engineering, University of Canterbury, Private Bag 4800, Christchurch, New Zealand, 8140
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Biosensors containing acetylcholinesterase and butyrylcholinesterase as recognition tools for detection of various compounds. CHEMICAL PAPERS 2015. [DOI: 10.2478/s11696-014-0542-x] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
AbstractAcetylcholinesterase (AChE) and butyrylcholinesterase (BChE) are enzymes expressed in the human body under physiological conditions. AChE is an important part of the cholinergic nerves where it hydrolyses neurotransmitter acetylcholine. Both cholinesterases are sensitive to inhibitors acting as neurotoxic compounds. In analytical applications, the enzymes can serve as a biorecognition element in biosensors as well as simple disposable sensors (dipsticks) and be used for assaying the neurotoxic compounds. In the present review, the mechanism of AChE and BChE inhibition by disparate compounds is explained and methods for assaying the enzymes activity are shown. Optical, electrochemical, and piezoelectric biosensors are described. Attention is also given to the application of sol-gel techniques and quantum dots in the biosensors’ construction. Examples of the biosensors are provided and the pros and cons are discussed.
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Abstract
Recent progress in surface science, nanotechnology and biophysics has cast new light on the correlation between the physicochemical properties of biomaterials and the resulting biological response. One experimental tool that promises to generate an increasingly more sophisticated knowledge of how proteins, cells and bacteria interact with nanostructured surfaces is the atomic force microscope (AFM). This unique instrument permits to close in on interfacial events at the scale at which they occur, the nanoscale. This perspective covers recent developments in the exploitation of the AFM, and suggests insights on future opportunities that can arise from the exploitation of this powerful technique.
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Affiliation(s)
- Fabio Variola
- Faculty of Engineering, Department of Mechanical Engineering, University of Ottawa, Ottawa, ON K1N 6N5, Canada.
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Gul S, Hadian K. Protein–protein interaction modulator drug discovery: past efforts and future opportunities using a rich source of low- and high-throughput screening assays. Expert Opin Drug Discov 2014; 9:1393-404. [DOI: 10.1517/17460441.2014.954544] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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