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Maass D, Boelens P, Bloss C, Claus G, Harter S, Günther D, Pollmann K, Lederer F. Identification of yttrium oxide-specific peptides for future recycling of rare earth elements from electronic scrap. Biotechnol Bioeng 2024; 121:1026-1035. [PMID: 38168837 DOI: 10.1002/bit.28629] [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: 10/02/2023] [Revised: 11/24/2023] [Accepted: 12/07/2023] [Indexed: 01/05/2024]
Abstract
Yttrium is a heavy rare earth element (REE) that acquires remarkable characteristics when it is in oxide form and doped with other REEs. Owing to these characteristics Y2 O3 can be used in the manufacture of several products. However, a supply deficit of this mineral is expected in the coming years, contributing to its price fluctuation. Thus, developing an efficient, cost-effective, and eco-friendly process to recover Y2 O3 from secondary sources has become necessary. In this study, we used phage surface display to screen peptides with high specificity for Y2 O3 particles. After three rounds of enrichment, a phage expressing the peptide TRTGCHVPRCNTLS (DM39) from the random pVIII phage peptide library Cys4 was found to bind specifically to Y2 O3 , being 531.6-fold more efficient than the wild-type phage. The phage DM39 contains two arginines in the polar side chains, which may have contributed to the interaction between the mineral targets. Immunofluorescence assays identified that the peptide's affinity was strong for Y2 O3 and negligible to LaPO4 :Ce3+ ,Tb3+ . The identification of a peptide with high specificity and affinity for Y2 O3 provides a potentially new strategic approach to recycle this type of material from secondary sources, especially from electronic scrap.
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Affiliation(s)
- Danielle Maass
- Departamento de Ciência e Tecnologia, Instituto de Ciência e Tecnologia, Universidade Federal de São Paulo, São José dos Campos, São Paulo, Brazil
| | | | | | - Gerda Claus
- Department of Biotechnology, Dresden, Germany
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2
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Butz ZJ, Borgognoni K, Nemeth R, Nilsson ZN, Ackerson CJ. Metalloid Reductase Activity Modified by a Fused Se 0 Binding Peptide. ACS Chem Biol 2020; 15:1987-1995. [PMID: 32568515 DOI: 10.1021/acschembio.0c00387] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
A selenium nanoparticle binding peptide was isolated from a phage display library and genetically fused to a metalloid reductase that reduces selenite (SeO32-) to a Se0 nanoparticle (SeNP) form. The fusion of the Se binding peptide to the metalloid reductase regulates the size of the resulting SeNP to ∼35 nm average diameter, where without the peptide, SeNPs grow to micron sized polydisperse precipitates. The SeNP product remains associated with the enzyme/peptide fusion. The Se binding peptide fusion to the enzyme increases the enzyme's SeO32- reductase activity. Size control of particles was diminished if the Se binding peptide was only added exogenously to the reaction mixture. The enzyme-peptide construct shows preference for binding smaller SeNPs. The peptide-SeNP interaction is attributed to His based ligation that results in a peptide conformational change on the basis of Raman spectroscopy.
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Affiliation(s)
- Zachary J. Butz
- Department of Chemistry, Colorado State University, Fort Collins, Colorado 80523, United States
| | - Kanda Borgognoni
- Department of Chemistry, Colorado State University, Fort Collins, Colorado 80523, United States
| | - Richard Nemeth
- Department of Chemistry, Colorado State University, Fort Collins, Colorado 80523, United States
| | - Zach N. Nilsson
- Department of Chemistry, Colorado State University, Fort Collins, Colorado 80523, United States
| | - Christopher J. Ackerson
- Department of Chemistry, Colorado State University, Fort Collins, Colorado 80523, United States
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3
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Pérez-Díaz MA, Silva-Bermudez P, Jiménez-López B, Martínez-López V, Melgarejo-Ramírez Y, Brena-Molina A, Ibarra C, Baeza I, Martínez-Pardo ME, Reyes-Frías ML, Márquez-Gutiérrez E, Velasquillo C, Martínez-Castañon G, Martinez-Gutierrez F, Sánchez-Sánchez R. Silver-pig skin nanocomposites and mesenchymal stem cells: suitable antibiofilm cellular dressings for wound healing. J Nanobiotechnology 2018; 16:2. [PMID: 29321021 PMCID: PMC5761131 DOI: 10.1186/s12951-017-0331-0] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2017] [Accepted: 12/21/2017] [Indexed: 01/01/2023] Open
Abstract
Background Treatment of severe or chronic skin wounds is an important challenge facing medicine and a significant health care burden. Proper wound healing is often affected by bacterial infection; where biofilm formation is one of the main risks and particularly problematic because it confers protection to microorganisms against antibiotics. One avenue to prevent bacterial colonization of wounds is the use of silver nanoparticles (AgNPs); which have proved to be effective against non-multidrug-resistant and multidrug-resistant bacteria. In addition, the use of mesenchymal stem cells (MSC) is an excellent option to improve wound healing due to their capability for differentiation and release of relevant growth factors. Finally, radiosterilized pig skin (RPS) is a biomatrix successfully used as wound dressing to avoid massive water loss, which represents an excellent carrier to deliver MSC into wound beds. Together, AgNPs, RPS and MSC represent a potential dressing to control massive water loss, prevent bacterial infection and enhance skin regeneration; three essential processes for appropriate wound healing with minimum scaring. Results We synthesized stable 10 nm-diameter spherical AgNPs that showed 21- and 16-fold increase in bacteria growth inhibition (in comparison to antibiotics) against clinical strains Staphylococcus aureus and Stenotrophomonas maltophilia, respectively. RPS samples were impregnated with different AgNPs suspensions to develop RPS-AgNPs nanocomposites with different AgNPs concentrations. Nanocomposites showed inhibition zones, in Kirby–Bauer assay, against both clinical bacteria tested. Nanocomposites also displayed antibiofilm properties against S. aureus and S. maltophilia from RPS samples impregnated with 250 and 1000 ppm AgNPs suspensions, respectively. MSC were isolated from adipose tissue and seeded on nanocomposites; cells survived on nanocomposites impregnated with up to 250 ppm AgNPs suspensions, showing 35% reduction in cell viability, in comparison to cells on RPS. Cells on nanocomposites proliferated with culture days, although the number of MSC on nanocomposites at 24 h of culture was lower than that on RPS. Conclusions AgNPs with better bactericide activity than antibiotics were synthesized. RPS-AgNPs nanocomposites impregnated with 125 and 250 ppm AgNPs suspensions decreased bacterial growth, decreased biofilm formation and were permissive for survival and proliferation of MSC; constituting promising multi-functional dressings for successful treatment of skin wounds. Electronic supplementary material The online version of this article (10.1186/s12951-017-0331-0) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Mario Alberto Pérez-Díaz
- Laboratorio de Biotecnología, Instituto Nacional de Rehabilitación Luis Guillermo Ibarra Ibarra, Calz. México Xochimilco No 289 Col. Arenal de Guadalupe, C.P.14389, Mexico City, Mexico.,Laboratorio de Biomembranas, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Prolongación de Carpio y Plan de Ayala s/n, Col. Santo Tomas, C.P. 11340, Mexico City, Mexico
| | - Phaedra Silva-Bermudez
- Unidad de Ingeniería de Tejidos, Terapia Celular y Medicina Regenerativa, Instituto Nacional de Rehabilitación Luis Guillermo Ibarra Ibarra, Calz. México Xochimilco No 289 Col. Arenal de Guadalupe, C.P.14389, Mexico City, Mexico
| | - Binisa Jiménez-López
- Laboratorio de Biotecnología, Instituto Nacional de Rehabilitación Luis Guillermo Ibarra Ibarra, Calz. México Xochimilco No 289 Col. Arenal de Guadalupe, C.P.14389, Mexico City, Mexico
| | - Valentín Martínez-López
- Unidad de Ingeniería de Tejidos, Terapia Celular y Medicina Regenerativa, Instituto Nacional de Rehabilitación Luis Guillermo Ibarra Ibarra, Calz. México Xochimilco No 289 Col. Arenal de Guadalupe, C.P.14389, Mexico City, Mexico
| | - Yaaziel Melgarejo-Ramírez
- Laboratorio de Biotecnología, Instituto Nacional de Rehabilitación Luis Guillermo Ibarra Ibarra, Calz. México Xochimilco No 289 Col. Arenal de Guadalupe, C.P.14389, Mexico City, Mexico
| | - Ana Brena-Molina
- Laboratorio de Biotecnología, Instituto Nacional de Rehabilitación Luis Guillermo Ibarra Ibarra, Calz. México Xochimilco No 289 Col. Arenal de Guadalupe, C.P.14389, Mexico City, Mexico
| | - Clemente Ibarra
- Unidad de Ingeniería de Tejidos, Terapia Celular y Medicina Regenerativa, Instituto Nacional de Rehabilitación Luis Guillermo Ibarra Ibarra, Calz. México Xochimilco No 289 Col. Arenal de Guadalupe, C.P.14389, Mexico City, Mexico
| | - Isabel Baeza
- Laboratorio de Biomembranas, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Prolongación de Carpio y Plan de Ayala s/n, Col. Santo Tomas, C.P. 11340, Mexico City, Mexico
| | - M Esther Martínez-Pardo
- Banco de Tejidos Radioesterilizados, Instituto Nacional de Investigaciones Nucleares, Carretera México-Toluca S/N La Marquesa, 52750, Ocoyoacac, Mexico
| | - M Lourdes Reyes-Frías
- Banco de Tejidos Radioesterilizados, Instituto Nacional de Investigaciones Nucleares, Carretera México-Toluca S/N La Marquesa, 52750, Ocoyoacac, Mexico
| | - Erik Márquez-Gutiérrez
- Laboratorio de Biotecnología, Instituto Nacional de Rehabilitación Luis Guillermo Ibarra Ibarra, Calz. México Xochimilco No 289 Col. Arenal de Guadalupe, C.P.14389, Mexico City, Mexico
| | - Cristina Velasquillo
- Laboratorio de Biotecnología, Instituto Nacional de Rehabilitación Luis Guillermo Ibarra Ibarra, Calz. México Xochimilco No 289 Col. Arenal de Guadalupe, C.P.14389, Mexico City, Mexico
| | - Gabriel Martínez-Castañon
- Laboratorio de Nanobiomateriales, Facultad de Estomatología, Universidad Autónoma de San Luis Potosí, Av. Dr. Manuel Nava No. 2, Zona Universitaria, C.P. 78290, San Luis Potosí, Mexico
| | - Fidel Martinez-Gutierrez
- Laboratorio de Microbiología, Facultad de Ciencias Químicas, Universidad Autónoma de San Luis Potosí, Av. Dr. Manuel Nava No. 6, Zona Universitaria, C.P. 78210, San Luis Potosí, Mexico.
| | - Roberto Sánchez-Sánchez
- Laboratorio de Biotecnología, Instituto Nacional de Rehabilitación Luis Guillermo Ibarra Ibarra, Calz. México Xochimilco No 289 Col. Arenal de Guadalupe, C.P.14389, Mexico City, Mexico.
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Curtis S, Lederer FL, Dunbar WS, MacGillivray RT. Identification of mineral-binding peptides that discriminate between chalcopyrite and enargite. Biotechnol Bioeng 2016; 114:998-1005. [DOI: 10.1002/bit.26218] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2016] [Revised: 11/07/2016] [Accepted: 11/07/2016] [Indexed: 11/08/2022]
Affiliation(s)
- Susan Curtis
- Norman B. Keevil Institute of Mining Engineering; University of British Columbia; Vancouver BC Canada
| | - Franziska L. Lederer
- Helmholtz Institute Freiberg for Resource Technology; Department of Processing; Helmholtz-Zentrum Dresden-Rossendorf Dresden Germany
- Department of Biochemistry and Molecular Biology and Centre for Blood Research; University of British Columbia; Vancouver BC Canada
| | - W. Scott Dunbar
- Norman B. Keevil Institute of Mining Engineering; University of British Columbia; Vancouver BC Canada
| | - Ross T.A. MacGillivray
- Department of Biochemistry and Molecular Biology and Centre for Blood Research; University of British Columbia; Vancouver BC Canada
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5
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Introduction of plasmid encoding for rare tRNAs reduces amplification bias in phage display biopanning. Biotechniques 2015; 58:81-4. [PMID: 25652031 DOI: 10.2144/000114256] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2014] [Accepted: 12/12/2014] [Indexed: 11/23/2022] Open
Abstract
Amplification bias is a major hurdle in phage display protocols because it imparts additional, unintended selection pressure beyond binding to the desired target. One potential source of amplification bias is the inherent lack of codon optimization that occurs within phage display libraries. Here we present a method that reduces amplification bias by addition of a plasmid that encodes six low abundance tRNAs into K91 Escherichia coli. This new strain, termed K91+, is used to amplify phage during the selection process. We demonstrate the importance of rare codon usage in phage production, and our method produced an overall increase in uniformity of phage production in a random library. Both of these variables are improved in E. coli K91+ compared with the parental K91 strain. This simple solution, requiring only a commercially available plasmid and an additional antibiotic, can reduce amplification bias in phage display protocols.
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6
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Shahsavarian MA, Le Minoux D, Matti KM, Kaveri S, Lacroix-Desmazes S, Boquet D, Friboulet A, Avalle B, Padiolleau-Lefèvre S. Exploitation of rolling circle amplification for the construction of large phage-display antibody libraries. J Immunol Methods 2014; 407:26-34. [PMID: 24681277 DOI: 10.1016/j.jim.2014.03.015] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2013] [Revised: 02/06/2014] [Accepted: 03/10/2014] [Indexed: 10/25/2022]
Abstract
Phage display antibody libraries have proven to have a significant role in the discovery of therapeutic antibodies and polypeptides with desired biological and physicochemical properties. Obtaining a large and diverse phage display antibody library, however, is always a challenging task. Various steps of this technique can still undergo optimization in order to obtain an efficient library. In the construction of a single chain fragment variable (scFv) phage display library, the cloning of the scFv fragments into a phagemid vector is of crucial importance. An efficient restriction enzyme digestion of the scFv DNA leads to its proper ligation with the phagemid followed by its successful cloning and expression. Here, we are reporting a different approach to enhance the efficiency of the restriction enzyme digestion step. We have exploited rolling circle amplification (RCA) to produce a long strand of DNA with tandem repeats of scFv sequences, which is found to be highly susceptible to restriction digestion. With this important modification, we are able to construct a large phage display antibody library of naive SJL/J mice. The size of the library is estimated as ~10(8) clones. The number of clones containing a scFv fragment is estimated at 90%. Hence, the present results could considerably aid the utilization of the phage-display technique in order to get an efficiently large antibody library.
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Affiliation(s)
- Melody A Shahsavarian
- Génie Enzymatique et Cellulaire (GEC), FRE 3580 CNRS, Université de Technologie de Compiègne, CS 60319, 60203 Compiègne, France
| | - Damien Le Minoux
- Génie Enzymatique et Cellulaire (GEC), FRE 3580 CNRS, Université de Technologie de Compiègne, CS 60319, 60203 Compiègne, France
| | - Kalyankumar M Matti
- Génie Enzymatique et Cellulaire (GEC), FRE 3580 CNRS, Université de Technologie de Compiègne, CS 60319, 60203 Compiègne, France
| | - Srini Kaveri
- Centre de Recherche des Cordeliers, Université Pierre et Marie Curie-Paris6, UMR S 872, Paris F-75006, France; Université Paris Descartes, UMR 872, Paris F-75006, France; INSERM, UMR 872, Paris F-75006, France; International Associated Laboratory IMPACT, Institut National de la Santé et de la Recherche Médicale-France and Indian Council of Medical Research-India, National Institute of Immunohaemotology, Mumbai, India
| | - Sébastien Lacroix-Desmazes
- Centre de Recherche des Cordeliers, Université Pierre et Marie Curie-Paris6, UMR S 872, Paris F-75006, France; Université Paris Descartes, UMR 872, Paris F-75006, France; INSERM, UMR 872, Paris F-75006, France; International Associated Laboratory IMPACT, Institut National de la Santé et de la Recherche Médicale-France and Indian Council of Medical Research-India, National Institute of Immunohaemotology, Mumbai, India
| | - Didier Boquet
- Laboratoire d'Ingénierie des Anticorps pour la Santé (LIAS), iBiTecS, SPI, Commissariat à l'Energie Atomique, 91191 Gif sur Yvette, France
| | - Alain Friboulet
- Génie Enzymatique et Cellulaire (GEC), FRE 3580 CNRS, Université de Technologie de Compiègne, CS 60319, 60203 Compiègne, France
| | - Bérangère Avalle
- Génie Enzymatique et Cellulaire (GEC), FRE 3580 CNRS, Université de Technologie de Compiègne, CS 60319, 60203 Compiègne, France
| | - Séverine Padiolleau-Lefèvre
- Génie Enzymatique et Cellulaire (GEC), FRE 3580 CNRS, Université de Technologie de Compiègne, CS 60319, 60203 Compiègne, France.
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7
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Rizzello L, Pompa PP. Nanosilver-based antibacterial drugs and devices: mechanisms, methodological drawbacks, and guidelines. Chem Soc Rev 2013; 43:1501-18. [PMID: 24292075 DOI: 10.1039/c3cs60218d] [Citation(s) in RCA: 457] [Impact Index Per Article: 41.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Despite the current advancement in drug discovery and pharmaceutical biotechnology, infection diseases induced by bacteria continue to be one of the greatest health problems worldwide, afflicting millions of people annually. Almost all microorganisms have, in fact, an intrinsic outstanding ability to flout many therapeutic interventions, thanks to their fast and easy-to-occur evolutionary genetic mechanisms. At the same time, big pharmaceutical companies are losing interest in new antibiotics development, shifting their capital investments in much more profitable research and development fields. New smart solutions are, thus, required to overcome such concerns, and should combine the feasibility of industrial production processes with cheapness and effectiveness. In this framework, nanotechnology-based solutions, and in particular silver nanoparticles (AgNPs), have recently emerged as promising candidates in the market as new antibacterial agents. AgNPs display, in fact, enhanced broad-range antibacterial/antiviral properties, and their synthesis procedures are quite cost effective. However, despite their increasing impact on the market, many relevant issues are still open. These include the molecular mechanisms governing the AgNPs-bacteria interactions, the physico-chemical parameters underlying their toxicity to prokaryotes, the lack of standardized methods and materials, and the uncertainty in the definition of general strategies to develop smart antibacterial drugs and devices based on nanosilver. In this review, we analyze the experimental data on the bactericidal effects of AgNPs, discussing the complex scenario and presenting the potential drawbacks and limitations in the techniques and methods employed. Moreover, after analyzing in depth the main mechanisms involved, we provide some general strategies/procedures to perform antibacterial tests of AgNPs, and propose some general guidelines for the design of antibacterial nanosystems and devices based on silver/nanosilver.
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Affiliation(s)
- Loris Rizzello
- Istituto Italiano di Tecnologia (IIT), Center for Bio-Molecular Nanotechnologies@UniLe, Via Barsanti, 73010 Arnesano (Lecce), Italy.
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8
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Frascione N, Codina-Barrios A, Bassindale AR, Taylor PG. Enhancing in vitro selection techniques to assist the discovery, understanding and use of inorganic binding peptides. Dalton Trans 2013; 42:10337-46. [PMID: 23740479 DOI: 10.1039/c3dt50541c] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Reflecting the increasing interest in combinatorial approaches, peptide phage display has seen an unprecedented expansion in a wide range of research areas. Its application to the discovery and analysis of metal binding peptides has opened up new research directions and largely contributed to the nanotechnology field. The rationale behind the need to identify such peptides varies depending on the final aim of the research and its application. Therefore, the possibility to modify the selection technique according to the different requirements would allow for a more systematic approach to be adopted and would ultimately provide substantial benefits. Although the standard panning method can be virtually applied to any target, its use for the identification of metal binding peptides does not provide the characteristics and the flexibility required for an efficient and tailored selection. Here we report on the development of a new panning method that can contribute to a faster, versatile and more informative analysis. Through the use of rolling-circle amplification, polymerase reaction and wild type phage, we have converted the standard selection technique into a more dynamic process in which adjustments can be evaluated and made consistently with the need of the experiment. The successfulness of the improved method is demonstrated in a number of panning experiments with different inorganic targets. The modifications applied to each selection are described and comparisons between the results obtained are made in order to extensively assess and evaluate the impact of the new process. The importance of tailoring the screening method to the specific objectives of a study is also considered. New binder sequences for the materials included in the investigation are identified; their sequences and distinctive characteristics are reported and their ability to act as templates for the nucleation of inorganic material is demonstrated and discussed.
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Affiliation(s)
- Nunzianda Frascione
- Department of Life, Health and Chemical Sciences, Open University, Venables Building, Walton Hall, Milton Keynes, UK.
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9
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Carreño-Fuentes L, Ascencio JA, Medina A, Aguila S, Palomares LA, Ramírez OT. Strategies for specifically directing metal functionalization of protein nanotubes: constructing protein coated silver nanowires. NANOTECHNOLOGY 2013; 24:235602. [PMID: 23676195 DOI: 10.1088/0957-4484/24/23/235602] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Biological molecules that self-assemble in the nanoscale range are useful multifunctional materials. Rotavirus VP6 protein self-assembles into tubular structures in the absence of other rotavirus proteins. Here, we present strategies for selectively directing metal functionalization to the lumen of VP6 nanotubes. The specific in situ metal reduction in the inner surface of nanotube walls was achieved by the simple modification of a method previously reported to functionalize the nanotube outer surface. Silver nanorods and nanowires as long as 1.5 μm were formed inside the nanotubes by coalescence of nanoparticles. Such one-dimensional structures were longer than others previously obtained using bioscaffolds. The interactions between silver ions and the nanotube were simulated to understand the conditions that allowed nanowire formation. Molecular docking showed that a naturally occurring arrangement of aspartate residues enabled the stabilization of silver ions on the internal surface of the VP6 nanotubes. This is the first time that such a spatial arrangement has been proposed for the nucleation of silver nanoparticles, opening the possibility of using such an array to direct functionalization of other biomolecules. These results demonstrate the natural capabilities of VP6 nanotubes to function as a versatile biotemplate for nanomaterials.
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Affiliation(s)
- Liliana Carreño-Fuentes
- Departamento de Medicina Molecular y Bioprocesos, Instituto de Biotecnología, Universidad Nacional Autónoma de México, AP 510-3, CP 62250, Cuernavaca, Morelos, Mexico
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10
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Sensitive electrochemical monitoring of nucleic acids coupling DNA nanostructures with hybridization chain reaction. Anal Chim Acta 2013; 783:17-23. [PMID: 23726095 DOI: 10.1016/j.aca.2013.04.049] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2013] [Revised: 04/20/2013] [Accepted: 04/24/2013] [Indexed: 01/24/2023]
Abstract
Methods based on metal nanotags have been developed for metallobioassay of nucleic acids, but most involve complicated labeling or stripping procedures and are unsuitable for routine use. Herein, we report the proof-of-concept of a novel and label-free metallobioassay for ultrasensitive electronic determination of human immunodeficiency virus (HIV)-related gene fragments at an ultralow concentration based on target-triggered long-range self-assembled DNA nanostructures and DNA-based hybridization chain reaction (HCR). The signal is amplified by silver nanotags on the DNA duplex. The assay mainly consists of capture probe, detection probe, and two different DNA hairpins. In the presence of target DNA, the capture probe immobilized on the sensor sandwiches target DNA with the 3' end of detection probe. Another exposed part of detection probe at the 5' end opens two alternating DNA hairpins in turn, and propagates a chain reaction of hybridization events to form a nicked double-helix. Finally, numerous silver nanotags are immobilized onto the long-range DNA nanostructures, each of which produces a strong electronic signal within the applied potentials. Under optimal conditions, the target-triggered long-range DNA nanostructures present good electrochemical behaviors for the detection of HIV DNA at a concentration as low as 0.5 fM. Importantly, the outstanding sensitivity can make this approach a promising scheme for development of next-generation DNA sensors without the need of enzyme labeling or fluorophore labeling.
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11
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Eckhardt S, Brunetto PS, Gagnon J, Priebe M, Giese B, Fromm KM. Nanobio silver: its interactions with peptides and bacteria, and its uses in medicine. Chem Rev 2013; 113:4708-54. [PMID: 23488929 DOI: 10.1021/cr300288v] [Citation(s) in RCA: 504] [Impact Index Per Article: 45.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Sonja Eckhardt
- Department of Chemistry, University of Fribourg, Chemin du Musée 9, 1700 Fribourg, Switzerland.
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12
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Delogu F. Ag nanoparticles from the mechanochemical decomposition of Ag oxalate. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2012; 28:10898-10904. [PMID: 22746698 DOI: 10.1021/la301770f] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
The present work focuses on the chemical reactivity of Ag oxalate powders under mechanical processing conditions. The powders were submitted to mechanical loads in the presence of an aqueous solution containing a polymeric surfactant. A gradual decrease of the total mass of powders was observed, ascribable to the occurrence of a decomposition process. X-ray diffraction and UV-vis spectrophotometric analyses indicated that the Ag oxalate decomposes into metallic Ag and gaseous carbon dioxide. Transmission electron microscopy showed that metallic Ag exists in the form of particles with average size of about 5 nm. The formation of nanometer-sized Ag particles can be related to the plastic deformation and attrition processes taking place at the points of contacts between neighboring particles during the mechanical loading at collision.
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Affiliation(s)
- Francesco Delogu
- Dipartimento di Ingegneria Meccanica, Chimica e dei Materiali, Università degli Studi di Cagliari, via Marengo 2, I-09123 Cagliari, Italy.
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Abstract
Molecular imaging allows clinicians to visualize disease-specific molecules, thereby providing relevant information in the diagnosis and treatment of patients. With advances in genomics and proteomics and underlying mechanisms of disease pathology, the number of targets identified has significantly outpaced the number of developed molecular imaging probes. There has been a concerted effort to bridge this gap with multidisciplinary efforts in chemistry, proteomics, physics, material science, and biology—all essential to progress in molecular imaging probe development. In this review, we discuss target selection, screening techniques, and probe optimization with the aim of developing clinically relevant molecularly targeted imaging agents.
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Affiliation(s)
- Fred Reynolds
- From the Robert M. Berne Cardiovascular Research Center and the Department of Biomedical Engineering, University of Virginia, Charlottesville, VA. Reprints not available
| | - Kimberly A. Kelly
- From the Robert M. Berne Cardiovascular Research Center and the Department of Biomedical Engineering, University of Virginia, Charlottesville, VA. Reprints not available
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Jones MR, Osberg KD, Macfarlane RJ, Langille MR, Mirkin CA. Templated Techniques for the Synthesis and Assembly of Plasmonic Nanostructures. Chem Rev 2011; 111:3736-827. [DOI: 10.1021/cr1004452] [Citation(s) in RCA: 996] [Impact Index Per Article: 76.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Matthew R. Jones
- Department of Materials Science and Engineering, ‡Department of Chemistry, and §International Institute for Nanotechnology, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208-3113, United States
| | - Kyle D. Osberg
- Department of Materials Science and Engineering, ‡Department of Chemistry, and §International Institute for Nanotechnology, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208-3113, United States
| | - Robert J. Macfarlane
- Department of Materials Science and Engineering, ‡Department of Chemistry, and §International Institute for Nanotechnology, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208-3113, United States
| | - Mark R. Langille
- Department of Materials Science and Engineering, ‡Department of Chemistry, and §International Institute for Nanotechnology, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208-3113, United States
| | - Chad A. Mirkin
- Department of Materials Science and Engineering, ‡Department of Chemistry, and §International Institute for Nanotechnology, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208-3113, United States
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15
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Slocik JM, Kim SN, Whitehead TA, Clark DS, Naik RR. Biotemplated metal nanowires using hyperthermophilic protein filaments. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2009; 5:2038-2042. [PMID: 19517487 DOI: 10.1002/smll.200900499] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Affiliation(s)
- Joseph M Slocik
- Nanostructured and Biological Materials Branch, Materials and Manufacturing Directorate, Air Force Research Lab, Wright-Patterson AFB, OH 45433-7750, USA
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16
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Belser K, Vig Slenters T, Pfumbidzai C, Upert G, Mirolo L, Fromm K, Wennemers H. Silver Nanoparticle Formation in Different Sizes Induced by Peptides Identified within Split-and-Mix Libraries. Angew Chem Int Ed Engl 2009. [DOI: 10.1002/ange.200806265] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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17
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Belser K, Vig Slenters T, Pfumbidzai C, Upert G, Mirolo L, Fromm K, Wennemers H. Silver Nanoparticle Formation in Different Sizes Induced by Peptides Identified within Split-and-Mix Libraries. Angew Chem Int Ed Engl 2009; 48:3661-4. [DOI: 10.1002/anie.200806265] [Citation(s) in RCA: 57] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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18
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Dickerson MB, Sandhage KH, Naik RR. Protein- and Peptide-Directed Syntheses of Inorganic Materials. Chem Rev 2008; 108:4935-78. [PMID: 18973389 DOI: 10.1021/cr8002328] [Citation(s) in RCA: 645] [Impact Index Per Article: 40.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Matthew B. Dickerson
- Materials and Manufacturing Directorate, Air Force Research Laboratory, Wright-Patterson Air Force Base, Ohio 45433-7702; School of Materials Science and Engineering, Georgia Institute of Technology, 771 Ferst Drive, Atlanta, Georgia 30332-0245; and School of Chemistry and Biochemistry, Georgia Institute of Technology, 901 Atlantic Drive, Atlanta, Georgia 30332-0245
| | - Kenneth H. Sandhage
- Materials and Manufacturing Directorate, Air Force Research Laboratory, Wright-Patterson Air Force Base, Ohio 45433-7702; School of Materials Science and Engineering, Georgia Institute of Technology, 771 Ferst Drive, Atlanta, Georgia 30332-0245; and School of Chemistry and Biochemistry, Georgia Institute of Technology, 901 Atlantic Drive, Atlanta, Georgia 30332-0245
| | - Rajesh R. Naik
- Materials and Manufacturing Directorate, Air Force Research Laboratory, Wright-Patterson Air Force Base, Ohio 45433-7702; School of Materials Science and Engineering, Georgia Institute of Technology, 771 Ferst Drive, Atlanta, Georgia 30332-0245; and School of Chemistry and Biochemistry, Georgia Institute of Technology, 901 Atlantic Drive, Atlanta, Georgia 30332-0245
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