1
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Steffens RC, Folda P, Fendler NL, Höhn M, Bücher-Schossau K, Kempter S, Snyder NL, Hartmann L, Wagner E, Berger S. GalNAc- or Mannose-PEG-Functionalized Polyplexes Enable Effective Lectin-Mediated DNA Delivery. Bioconjug Chem 2024; 35:351-370. [PMID: 38440876 DOI: 10.1021/acs.bioconjchem.3c00546] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/06/2024]
Abstract
A cationic, dendrimer-like oligo(aminoamide) carrier with four-arm topology based on succinoyl tetraethylene pentamine and histidines, cysteines, and N-terminal azido-lysines was screened for plasmid DNA delivery on various cell lines. The incorporated azides allow modification with various shielding agents of different polyethylene glycol (PEG) lengths and/or different ligands by copper-free click reaction, either before or after polyplex formation. Prefunctionalization was found to be advantageous over postfunctionalization in terms of nanoparticle formation, stability, and efficacy. A length of 24 ethylene oxide repetition units and prefunctionalization of ≥50% of azides per carrier promoted optimal polyplex shielding. PEG shielding resulted in drastically reduced DNA transfer, which could be successfully restored by active lectin targeting via novel GalNAc or mannose ligands, enabling enhanced receptor-mediated endocytosis of the carrier system. The involvement of the asialoglycoprotein receptor (ASGPR) in the uptake of GalNAc-functionalized polyplexes was confirmed in the ASGPR-positive hepatocarcinoma cell lines HepG2 and Huh7. Mannose-modified polyplexes showed superior cellular uptake and transfection efficacy compared to unmodified and shielded polyplexes in mannose-receptor-expressing dendritic cell-like DC2.4 cells.
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Affiliation(s)
- Ricarda C Steffens
- Pharmaceutical Biotechnology, Department of Pharmacy, Ludwig-Maximilians-Universität (LMU) Munich, 81377 Munich, Germany
- Center for NanoScience (CeNS), LMU Munich, 80799 Munich, Germany
| | - Paul Folda
- Pharmaceutical Biotechnology, Department of Pharmacy, Ludwig-Maximilians-Universität (LMU) Munich, 81377 Munich, Germany
| | - Nikole L Fendler
- Department of Chemistry, Davidson College, Davidson, North Carolina 28035, United States
| | - Miriam Höhn
- Pharmaceutical Biotechnology, Department of Pharmacy, Ludwig-Maximilians-Universität (LMU) Munich, 81377 Munich, Germany
| | - Katharina Bücher-Schossau
- Institute of Organic Chemistry and Macromolecular Chemistry, Heinrich-Heine-University Düsseldorf, Universitätsstr. 1, 40225 Düsseldorf, Germany
| | - Susanne Kempter
- Faculty of Physics, LMU Munich, 80539 Munich, Germany
- Center for NanoScience (CeNS), LMU Munich, 80799 Munich, Germany
| | - Nicole L Snyder
- Department of Chemistry, Davidson College, Davidson, North Carolina 28035, United States
| | - Laura Hartmann
- Institute of Organic Chemistry and Macromolecular Chemistry, Heinrich-Heine-University Düsseldorf, Universitätsstr. 1, 40225 Düsseldorf, Germany
- Institute for Macromolecular Chemistry, University Freiburg, Stefan-Meier-Str. 31, 79104 Freiburg im Breisgau, Germany
| | - Ernst Wagner
- Pharmaceutical Biotechnology, Department of Pharmacy, Ludwig-Maximilians-Universität (LMU) Munich, 81377 Munich, Germany
- Center for NanoScience (CeNS), LMU Munich, 80799 Munich, Germany
| | - Simone Berger
- Pharmaceutical Biotechnology, Department of Pharmacy, Ludwig-Maximilians-Universität (LMU) Munich, 81377 Munich, Germany
- Center for NanoScience (CeNS), LMU Munich, 80799 Munich, Germany
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2
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Erickson PW, Fulcher JM, Spaltenstein P, Kay MS. Traceless Click-Assisted Native Chemical Ligation Enabled by Protecting Dibenzocyclooctyne from Acid-Mediated Rearrangement with Copper(I). Bioconjug Chem 2021; 32:2233-2244. [PMID: 34619957 PMCID: PMC9769386 DOI: 10.1021/acs.bioconjchem.1c00403] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
The scope of proteins accessible to total chemical synthesis via native chemical ligation (NCL) is often limited by slow ligation kinetics. Here we describe Click-Assisted NCL (CAN), in which peptides are incorporated with traceless "helping hand" lysine linkers that enable addition of dibenzocyclooctyne (DBCO) and azide handles. The resulting strain-promoted alkyne-azide cycloaddition (SPAAC) increases their effective concentration to greatly accelerate ligations. We demonstrate that copper(I) protects DBCO from acid-mediated rearrangement during acidic peptide cleavage, enabling direct production of DBCO synthetic peptides. Excitingly, triazole-linked model peptides ligated rapidly and accumulated little side product due to the fast reaction time. Using the E. coli ribosomal subunit L32 as a model protein, we further demonstrate that SPAAC, ligation, desulfurization, and linker cleavage steps can be performed in one pot. CAN is a useful method for overcoming challenging ligations involving sterically hindered junctions. Additionally, CAN is anticipated to be an important stepping stone toward a multisegment, one-pot, templated ligation system.
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Affiliation(s)
- Patrick W. Erickson
- Department of Biochemistry, University of Utah School of Medicine, 15 North Medical Drive East, Room 4100, Salt Lake City, Utah 84112, United States
- Institute for Protein Design, Department of Biochemistry, University of Washington, Seattle, Washington 98195, United States
| | - James M. Fulcher
- Department of Biochemistry, University of Utah School of Medicine, 15 North Medical Drive East, Room 4100, Salt Lake City, Utah 84112, United States
- Biological Sciences Division, Pacific Northwest National Laboratory, Richland, Washington 99354, United States
| | - Paul Spaltenstein
- Department of Biochemistry, University of Utah School of Medicine, 15 North Medical Drive East, Room 4100, Salt Lake City, Utah 84112, United States
| | - Michael S. Kay
- Department of Biochemistry, University of Utah School of Medicine, 15 North Medical Drive East, Room 4100, Salt Lake City, Utah 84112, United States
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3
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Pineda-Castañeda HM, Insuasty-Cepeda DS, Niño-Ramírez VA, Curtidor H, Rivera-Monroy ZJ. Designing Short Peptides: A Sisyphean Task? CURR ORG CHEM 2020. [DOI: 10.2174/1385272824999200910094034] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Over the last few years, short peptides have become a powerful tool in basic and
applied research, with different uses like diagnostic, antimicrobial peptides, human health
promoters or bioactive peptides, therapeutic treatments, templates for peptidomimetic design,
and peptide-based vaccines. In this endeavor, different approaches and technologies
have been explored, such as bioinformatics, large-scale peptide synthesis, omics sciences,
structure-activity relationship studies, and a biophysical approach, among others, seeking to
obtain the shortest sequence with the best activity. The advantage of short peptides lies in
their stability, ease of production, safety, and low cost. There are many strategies for designing
short peptides with biomedical and industrial applications (targeting the structure, length,
charge, or polarity) or as a starting point for improving their properties (sequence data base,
de novo sequences, templates, or organic scaffolds). In peptide design, it is necessary to keep in mind factors
such as the application (peptidomimetic, immunogen, antimicrobial, bioactive, or protein-protein interaction
inhibitor), the expected target (membrane cell, nucleus, receptor proteins, or immune system), and particular
characteristics (shorter, conformationally constrained, cycled, charged, flexible, polymerized, or pseudopeptides).
This review summarizes the different synthetic approaches and strategies used to design new peptide analogs,
highlighting the achievements, constraints, and advantages of each.
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Affiliation(s)
| | | | - Víctor A. Niño-Ramírez
- Chemistry Department, Sciences Faculty, Universidad Nacional de Colombia, Bogota, Colombia
| | | | - Zuly J. Rivera-Monroy
- Chemistry Department, Sciences Faculty, Universidad Nacional de Colombia, Bogota, Colombia
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4
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Ghiassian S, Yu L, Gobbo P, Nazemi A, Romagnoli T, Luo W, Luyt LG, Workentin MS. Nitrone-Modified Gold Nanoparticles: Synthesis, Characterization, and Their Potential as 18F-Labeled Positron Emission Tomography Probes via I-SPANC. ACS OMEGA 2019; 4:19106-19115. [PMID: 31763533 PMCID: PMC6868604 DOI: 10.1021/acsomega.9b02322] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/24/2019] [Accepted: 10/28/2019] [Indexed: 05/11/2023]
Abstract
A novel bioorthogonal gold nanoparticle (AuNP) template displaying interfacial nitrone functional groups for bioorthogonal interfacial strain-promoted alkyne-nitrone cycloaddition reactions has been synthesized. These nitrone-AuNPs were characterized in detail using 1H nuclear magnetic resonance spectroscopy, transmission electron microscopy, thermogravimetric analysis, and X-ray photoelectron spectroscopy, and a nanoparticle raw formula was calculated. The ability to control the conjugation of molecules of interest at the molecular level onto the nitrone-AuNP template allowed us to create a novel methodology for the synthesis of AuNP-based radiolabeled probes.
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Affiliation(s)
- Sara Ghiassian
- Department
of Chemistry and the Center for Materials and Biomaterials
Research and Department of Oncology, The University
of Western Ontario, London N6A 5B7, Ontario, Canada
| | - Lihai Yu
- London
Regional Cancer Program, 800 Commissioners Rd. E., London N6A 5W9, Ontario, Canada
| | - Pierangelo Gobbo
- Department
of Chemistry and the Center for Materials and Biomaterials
Research and Department of Oncology, The University
of Western Ontario, London N6A 5B7, Ontario, Canada
| | - Ali Nazemi
- Department
of Chemistry and the Center for Materials and Biomaterials
Research and Department of Oncology, The University
of Western Ontario, London N6A 5B7, Ontario, Canada
| | - Tommaso Romagnoli
- Department
of Chemistry and the Center for Materials and Biomaterials
Research and Department of Oncology, The University
of Western Ontario, London N6A 5B7, Ontario, Canada
| | - Wilson Luo
- Department
of Chemistry and the Center for Materials and Biomaterials
Research and Department of Oncology, The University
of Western Ontario, London N6A 5B7, Ontario, Canada
| | - Leonard G. Luyt
- Department
of Chemistry and the Center for Materials and Biomaterials
Research and Department of Oncology, The University
of Western Ontario, London N6A 5B7, Ontario, Canada
- London
Regional Cancer Program, 800 Commissioners Rd. E., London N6A 5W9, Ontario, Canada
| | - Mark S. Workentin
- Department
of Chemistry and the Center for Materials and Biomaterials
Research and Department of Oncology, The University
of Western Ontario, London N6A 5B7, Ontario, Canada
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5
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Camacho P, Busari H, Seims KB, Schwarzenberg P, Dailey HL, Chow LW. 3D printing with peptide-polymer conjugates for single-step fabrication of spatially functionalized scaffolds. Biomater Sci 2019; 7:4237-4247. [PMID: 31393469 DOI: 10.1039/c9bm00887j] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Biodegradable polymer-based scaffolds are widely used to provide support during early stages of regeneration and can be functionalized with various chemical groups or bioactive cues to promote desired cellular behavior. However, these scaffolds are often modified post-fabrication, which can lead to undesired changes and homogeneously distributed chemistries that fail to mimic the spatial biochemical organization found in native tissues. To address these challenges, surface functionalization can be achieved by 3D printing with pre-functionalized biodegradable polymers, such as peptide-modified polymer conjugates, to control the deposition of preferred chemistries. Peptide-PCL conjugates were synthesized with the canonical cell adhesion peptide motif RGDS or its negative control RGES and 3D printed into scaffolds displaying one or both peptides. The peptides were also modified with bioorthogonal groups, biotin and azide, to visualize peptide concentration and location by labeling with complementary fluorophores. Peptide concentration on the scaffold surface increased with increasing peptide-PCL conjugate concentration added to the ink prior to 3D printing, and scaffolds printed with the highest RGDS(biotin)-PCL concentrations showed a significant increase in NIH3T3 fibroblast adhesion. To demonstrate spatial control of peptide functionalization, multiple printer heads were used to print both peptide-PCL conjugates into the same construct in alternating patterns. Cells preferentially attached and spread on RGDS(biotin)-PCL fibers compared to RGES(azide)-PCL fibers, illustrating how spatial functionalization can be used to influence local cell behavior within a single biomaterial. This presents a versatile platform to generate multifunctional biomaterials that can mimic the biochemical organization found in native tissues to support functional regeneration.
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Affiliation(s)
- Paula Camacho
- Department of Bioengineering, Lehigh University, Bethlehem, PA, USA.
| | - Hafiz Busari
- Department of Materials Science and Engineering, Lehigh University, Bethlehem, PA, USA
| | - Kelly B Seims
- Department of Materials Science and Engineering, Lehigh University, Bethlehem, PA, USA
| | | | - Hannah L Dailey
- Department of Mechanical Engineering and Mechanics, Bethlehem, PA, USA
| | - Lesley W Chow
- Department of Bioengineering, Lehigh University, Bethlehem, PA, USA. and Department of Materials Science and Engineering, Lehigh University, Bethlehem, PA, USA
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6
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Gunawardene PN, Corrigan JF, Workentin MS. Golden Opportunity: A Clickable Azide-Functionalized [Au25(SR)18]− Nanocluster Platform for Interfacial Surface Modifications. J Am Chem Soc 2019; 141:11781-11785. [DOI: 10.1021/jacs.9b05182] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Praveen N. Gunawardene
- Department of Chemistry and the Centre for Advanced Materials and Biomaterials Research, The University of Western Ontario, London, Ontario N6A 5B7, Canada
| | - John F. Corrigan
- Department of Chemistry and the Centre for Advanced Materials and Biomaterials Research, The University of Western Ontario, London, Ontario N6A 5B7, Canada
| | - Mark S. Workentin
- Department of Chemistry and the Centre for Advanced Materials and Biomaterials Research, The University of Western Ontario, London, Ontario N6A 5B7, Canada
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7
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van der Meer SB, Loza K, Wey K, Heggen M, Beuck C, Bayer P, Epple M. Click Chemistry on the Surface of Ultrasmall Gold Nanoparticles (2 nm) for Covalent Ligand Attachment Followed by NMR Spectroscopy. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:7191-7204. [PMID: 31039607 DOI: 10.1021/acs.langmuir.9b00295] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Ultrasmall gold nanoparticles (core diameter 2 nm) were surface-conjugated with azide groups by attaching the azide-functionalized tripeptide lysine(N3)-cysteine-asparagine with ∼117 molecules on each nanoparticle. A covalent surface modification with alkyne-containing molecules was then possible by copper-catalyzed click chemistry. The successful clicking to the nanoparticle surface was demonstrated with 13C-labeled propargyl alcohol. All steps of the nanoparticle surface conjugation were verified by extensive NMR spectroscopy on dispersed nanoparticles. The particle diameter and the dispersion state were assessed by high-resolution transmission electron microscopy (HRTEM), differential centrifugal sedimentation (DCS), and 1H-DOSY NMR spectroscopy. The clicking of fluorescein (FAM-alkyne) gave strongly fluorescing ultrasmall nanoparticles that were traced inside eukaryotic cells. The uptake of these nanoparticles after 24 h by HeLa cells was very efficient and showed that the nanoparticles even penetrated the nuclear membrane to a very high degree (in contrast to dissolved FAM-alkyne alone that did not enter the cell). About 8 fluorescein molecules were clicked to each nanoparticle.
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Affiliation(s)
- Selina Beatrice van der Meer
- Inorganic Chemistry and Center for Nanointegration Duisburg-Essen (CeNIDE) , University of Duisburg-Essen , Universitätsstr. 5-7 , 45117 Essen , Germany
| | - Kateryna Loza
- Inorganic Chemistry and Center for Nanointegration Duisburg-Essen (CeNIDE) , University of Duisburg-Essen , Universitätsstr. 5-7 , 45117 Essen , Germany
| | - Karolin Wey
- Inorganic Chemistry and Center for Nanointegration Duisburg-Essen (CeNIDE) , University of Duisburg-Essen , Universitätsstr. 5-7 , 45117 Essen , Germany
| | - Marc Heggen
- Ernst Ruska-Center for Microscopy and Spectroscopy with Electrons , Forschungszentrum Jülich GmbH , 52425 Jülich , Germany
| | - Christine Beuck
- Department of Structural and Medicinal Biochemistry, Centre for Medical Biotechnology (ZMB) , University of Duisburg-Essen , 45117 Essen , Germany
| | - Peter Bayer
- Department of Structural and Medicinal Biochemistry, Centre for Medical Biotechnology (ZMB) , University of Duisburg-Essen , 45117 Essen , Germany
| | - Matthias Epple
- Inorganic Chemistry and Center for Nanointegration Duisburg-Essen (CeNIDE) , University of Duisburg-Essen , Universitätsstr. 5-7 , 45117 Essen , Germany
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8
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Klein PM, Kern S, Lee DJ, Schmaus J, Höhn M, Gorges J, Kazmaier U, Wagner E. Folate receptor-directed orthogonal click-functionalization of siRNA lipopolyplexes for tumor cell killing in vivo. Biomaterials 2018; 178:630-642. [DOI: 10.1016/j.biomaterials.2018.03.031] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2017] [Revised: 03/15/2018] [Accepted: 03/17/2018] [Indexed: 12/11/2022]
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9
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Poonthiyil V, Lindhorst TK, Golovko VB, Fairbanks AJ. Recent applications of click chemistry for the functionalization of gold nanoparticles and their conversion to glyco-gold nanoparticles. Beilstein J Org Chem 2018; 14:11-24. [PMID: 29379576 PMCID: PMC5769080 DOI: 10.3762/bjoc.14.2] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2017] [Accepted: 12/20/2017] [Indexed: 12/27/2022] Open
Abstract
Glycoscience, despite its myriad of challenges, promises to unravel the causes of, potential new detection methods for, and novel therapeutic strategies against, many disease states. In the last two decades, glyco-gold nanoparticles have emerged as one of several potential new tools for glycoscientists. Glyco-gold nanoparticles consist of the unique structural combination of a gold nanoparticle core and an outer-shell comprising multivalent presentation of carbohydrates. The combination of the distinctive physicochemical properties of the gold core and the biological function/activity of the carbohydrates makes glyco-gold nanoparticles a valuable tool in glycoscience. In this review we present recent advances made in the use of one type of click chemistry, namely the azide-alkyne Huisgen cycloaddition, for the functionalization of gold nanoparticles and their conversion to glyco-gold nanoparticles.
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Affiliation(s)
- Vivek Poonthiyil
- Otto Diels Institute of Organic Chemistry, Christiana Albertina University of Kiel, Otto-Hahn-Platz 3/4, Kiel, 24098, Germany
| | - Thisbe K Lindhorst
- Otto Diels Institute of Organic Chemistry, Christiana Albertina University of Kiel, Otto-Hahn-Platz 3/4, Kiel, 24098, Germany
| | - Vladimir B Golovko
- Department of Chemistry, University of Canterbury, Private Bag 4800, Christchurch, 8140, New Zealand
- The MacDiarmid Institute for Advanced Materials and Nanotechnology, Wellington, 6140, New Zealand
| | - Antony J Fairbanks
- Department of Chemistry, University of Canterbury, Private Bag 4800, Christchurch, 8140, New Zealand
- Biomolecular Interaction Centre, University of Canterbury, Private Bag 4800, Christchurch 8140, New Zealand
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10
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Elliott EW, Ginzburg AL, Kennedy ZC, Feng Z, Hutchison JE. Single-Step Synthesis of Small, Azide-Functionalized Gold Nanoparticles: Versatile, Water-Dispersible Reagents for Click Chemistry. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2017; 33:5796-5802. [PMID: 28521100 DOI: 10.1021/acs.langmuir.7b00632] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Nanoparticles possessing functional groups that can be readily conjugated (e.g., through click chemistry) are important precursors for the preparation of customized nanohybrid products. Such nanoparticles, if they are stable against agglomeration, are easily dispersible and have well-defined surface chemistry and size. As click-ready reagents, they can be stored until their time of use and then simply dispersed and reacted with an appropriate substrate. Gold nanoparticles (AuNPs) are excellent candidates for this purpose, and some clickable gold nanoparticles have been developed; however, AuNPs for use in aqueous systems are often prepared through difficult multistep processes and/or can be poorly dispersible in water. Here we report a single-step synthesis of clickable, water-dispersible AuNPs. The synthesis yields uniform, 3.5 nm diameter cores coated with a well-defined molecular ligand shell that makes the AuNPs stable and dispersible in water. The AuNP mixed ligand shell consists of hydroxyl-terminated ethylene glycol-based ligands to promote dispersion in water and a small number of azide-terminated ligands that readily undergo click reactions with alkynes. The use of a mesofluidic reactor affords fine control over the core size and ligand shell composition and ensures reproducible results (e.g., less than 0.1 nm variation in core diameter between batches). The purified reagents were successfully coupled to a variety of alkyne-containing substrates using both Cu-catalyzed and strain-promoted click reactions. Particle size, morphology, stability, and surface composition were thoroughly characterized using small-angle X-ray scattering, transmission electron microscopy, X-ray photoelectron spectroscopy, UV-vis, and 1H NMR before and after the click reactions. Both the parent nanoparticles and their click chemistry products are stable during storage and remained dispersible for over a year in water, suggesting their potential for environmental, biological, and biomedical applications.
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Affiliation(s)
- Edward W Elliott
- Department of Chemistry and Biochemistry and Materials Science Institute, University of Oregon , Eugene, Oregon 97403-1253, United States
| | - Aurora L Ginzburg
- Department of Chemistry and Biochemistry and Materials Science Institute, University of Oregon , Eugene, Oregon 97403-1253, United States
| | - Zachary C Kennedy
- Department of Chemistry and Biochemistry and Materials Science Institute, University of Oregon , Eugene, Oregon 97403-1253, United States
| | - Zhenshuo Feng
- Department of Chemistry and Biochemistry and Materials Science Institute, University of Oregon , Eugene, Oregon 97403-1253, United States
| | - James E Hutchison
- Department of Chemistry and Biochemistry and Materials Science Institute, University of Oregon , Eugene, Oregon 97403-1253, United States
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11
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Luo W, Gobbo P, McNitt CD, Sutton DA, Popik VV, Workentin MS. “Shine & Click” Photo-Induced Interfacial Unmasking of Strained Alkynes on Small Water-Soluble Gold Nanoparticles. Chemistry 2016; 23:1052-1059. [DOI: 10.1002/chem.201603398] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2016] [Indexed: 12/19/2022]
Affiliation(s)
- Wilson Luo
- Department of Chemistry and Centre for Materials and Biomaterials Research; Western University; 1151 Richmond St. London ON N6A 5B7 Canada
| | - Pierangelo Gobbo
- Department of Chemistry and Centre for Materials and Biomaterials Research; Western University; 1151 Richmond St. London ON N6A 5B7 Canada
| | | | - Dewey A. Sutton
- Department of Chemistry; University of Georgia; Athens GA 30602 United States
| | - Vladimir V. Popik
- Department of Chemistry; University of Georgia; Athens GA 30602 United States
| | - Mark S. Workentin
- Department of Chemistry and Centre for Materials and Biomaterials Research; Western University; 1151 Richmond St. London ON N6A 5B7 Canada
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12
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Gobbo P, Luo W, Cho SJ, Wang X, Biesinger MC, Hudson RHE, Workentin MS. Small gold nanoparticles for interfacial Staudinger-Bertozzi ligation. Org Biomol Chem 2016; 13:4605-12. [PMID: 25786777 DOI: 10.1039/c5ob00372e] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Small gold nanoparticles (AuNPs) that possess interfacial methyl-2-(diphenylphosphino)benzoate moieties have been successfully synthesized (Staudinger-AuNPs) and characterized by multi-nuclear MR spectroscopy, transmission electron microscopy (TEM), UV-Vis spectroscopy, thermogravimetric analysis, and X-ray photoelectron spectroscopy (XPS). In particular, XPS was remarkably sensitive for characterization of the novel nanomaterial, and in furnishing proof of its interfacial reactivity. These Staudinger-AuNPs were found to be stable to the oxidation of the phosphine center. The reaction with benzyl azide in a Staudinger-Bertozzi ligation, as a model system, was investigated using (31)P NMR spectroscopy. This demonstrated that the interfacial reaction was clean and quantitative. To showcase the potential utility of these Staudinger-AuNPs in bioorganic chemistry, a AuNP bioconjugate was prepared by reacting the Staudinger-AuNPs with a novel azide-labeled CRGDK peptide. The CRGDK peptide could be covalently attached to the AuNP efficiently, chemoselectively, and with a high loading.
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Affiliation(s)
- Pierangelo Gobbo
- The University of Western Ontario and the Centre for Materials and Biomaterials Research, Richmond Street, London, Ontario, Canada.
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13
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Su X, Bu L, Dong H, Fu S, Zhuo R, Zhong Z. An injectable PEG-based hydrogel synthesized by strain-promoted alkyne–azide cycloaddition for use as an embolic agent. RSC Adv 2016. [DOI: 10.1039/c5ra23551k] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Cyclooctyne and azide functionalized PEGs are prepared by ring-opening polymerization. They form a biodegradable hydrogel in situ to temporarily block rabbit ear vessels.
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Affiliation(s)
- Xin Su
- Key Laboratory of Biomedical Polymers of Ministry of Education
- Department of Chemistry
- Wuhan University
- Wuhan 430072
- P. R. China
| | - Linlin Bu
- The State Key Laboratory Breeding Base of Basic Science of Stomatology & Key Laboratory of Oral Biomedicine Ministry of Education
- School & Hospital of Stomatology
- Wuhan University
- Wuhan
- China
| | - Hui Dong
- Key Laboratory of Biomedical Polymers of Ministry of Education
- Department of Chemistry
- Wuhan University
- Wuhan 430072
- P. R. China
| | - Shuangli Fu
- Key Laboratory of Biomedical Polymers of Ministry of Education
- Department of Chemistry
- Wuhan University
- Wuhan 430072
- P. R. China
| | - Renxi Zhuo
- Key Laboratory of Biomedical Polymers of Ministry of Education
- Department of Chemistry
- Wuhan University
- Wuhan 430072
- P. R. China
| | - Zhenlin Zhong
- Key Laboratory of Biomedical Polymers of Ministry of Education
- Department of Chemistry
- Wuhan University
- Wuhan 430072
- P. R. China
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14
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Smyslova P, Popa I, Lyčka A, Tejral G, Hlavac J. Non-Catalyzed Click Reactions of ADIBO Derivatives with 5-Methyluridine Azides and Conformational Study of the Resulting Triazoles. PLoS One 2015; 10:e0144613. [PMID: 26673606 PMCID: PMC4690608 DOI: 10.1371/journal.pone.0144613] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2015] [Accepted: 11/20/2015] [Indexed: 12/25/2022] Open
Abstract
Copper-free click reactions between a dibenzoazocine derivative and azides derived from 5-methyluridine were investigated. The non-catalyzed reaction yielded both regioisomers in an approximately equivalent ratio. The NMR spectra of each regioisomer revealed conformational isomery. The ratio of isomers was dependent on the type of regioisomer and the type of solvent. The synthesis of various analogs, a detailed NMR study and computational modeling provided evidence that the isomery was dependent on the interaction of the azocine and pyrimidine parts.
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Affiliation(s)
- Petra Smyslova
- Institute of Molecular and Translation Medicine, Olomouc, Czech Republic
- Department of Organic Chemistry, Faculty of Science, Palacký University, Olomouc, Czech Republic
| | - Igor Popa
- Institute of Molecular and Translation Medicine, Olomouc, Czech Republic
| | - Antonín Lyčka
- University of Hradec Kralove, Faculty of Science, Hradec Kralove, Czech Republic
| | - Gracian Tejral
- Institute of Biophysics, Second Faculty of Medicine, Charles University, Praha 5, Czech Republic
- Laboratory of Tissue Engineering, Institute of Experimental Medicine, Academy of Sciences of the Czech Republic, Praha 4, Czech Republic
| | - Jan Hlavac
- Institute of Molecular and Translation Medicine, Olomouc, Czech Republic
- Department of Organic Chemistry, Faculty of Science, Palacký University, Olomouc, Czech Republic
- * E-mail:
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15
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Stolzer L, Vigovskaya A, Barner-Kowollik C, Fruk L. A Self-Reporting Tetrazole-Based Linker for the Biofunctionalization of Gold Nanorods. Chemistry 2015; 21:14309-13. [DOI: 10.1002/chem.201502070] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2015] [Indexed: 11/11/2022]
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16
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Gobbo P, Romagnoli T, Barbon SM, Price JT, Keir J, Gilroy JB, Workentin MS. Expanding the scope of strained-alkyne chemistry: a protection–deprotection strategy via the formation of a dicobalt–hexacarbonyl complex. Chem Commun (Camb) 2015; 51:6647-50. [DOI: 10.1039/c5cc01522g] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
A protection–deprotection strategy for strained alkynes is reported. A strained alkyne can be protected with dicobalt–octacarbonyl and we demonstrate for the first time that the a strained alkyne can be re-formed and isolated under mild conditions for further bioorthogonal reactivity.
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Affiliation(s)
- Pierangelo Gobbo
- Department of Chemistry and the Centre for Materials and Biomaterials Research (CAMBR)
- The University of Western Ontario
- London
- Canada
| | - Tommaso Romagnoli
- Department of Chemistry and the Centre for Materials and Biomaterials Research (CAMBR)
- The University of Western Ontario
- London
- Canada
| | - Stephanie M. Barbon
- Department of Chemistry and the Centre for Materials and Biomaterials Research (CAMBR)
- The University of Western Ontario
- London
- Canada
| | - Jacquelyn T. Price
- Department of Chemistry and the Centre for Materials and Biomaterials Research (CAMBR)
- The University of Western Ontario
- London
- Canada
| | - Jennifer Keir
- Department of Chemistry and the Centre for Materials and Biomaterials Research (CAMBR)
- The University of Western Ontario
- London
- Canada
| | - Joe B. Gilroy
- Department of Chemistry and the Centre for Materials and Biomaterials Research (CAMBR)
- The University of Western Ontario
- London
- Canada
| | - Mark S. Workentin
- Department of Chemistry and the Centre for Materials and Biomaterials Research (CAMBR)
- The University of Western Ontario
- London
- Canada
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