1
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Vollett KDW, Cheng HLM. Efficient one-step amide formation using amino porphyrins. Org Biomol Chem 2024; 22:6308-6320. [PMID: 39037740 DOI: 10.1039/d4ob00704b] [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: 07/23/2024]
Abstract
Amide bonds are one of the most prevalent phenomena in nature and are utilized frequently in drug and material design. However, forming amide bonds is not always efficient or high yielding, particularly when the amine used to conjugate to a carboxylic acid is a weak nucleophile. This limitation precludes many useful amino compounds from participating in conjugation reactions to form amides. A particularly valuable amino compound, which is also a very weak nucleophile, is the amino porphyrin, valued for its role as a photosensitizer, fluorescent agent, catalyst, or, upon metalation, even a very efficient contrast agent for magnetic resonance imaging (MRI). In this work, we propose fast and high-yield coupling of an unreactive amine - the amino porphyrin - to carboxylic acid via isothiocyanate conjugation. Reactions can be achieved in one step at room temperature in one hour, achieving quantitative conversion and near perfect selectivity. Both metalated and unmetalated porphyrin, as well as fluorescein isothiocyanate (FITC), demonstrated efficient conjugation. To illustrate the value of the proposed method, we created a new blood-pool MRI contrast agent that reversibly binds to serum albumin. This new blood-pool agent, known as MITC-Deox (MRI isothiocyanate that links with deoxycholic acid), substantially reduced T1 relaxation times in blood vessels in mice, remained stable for 1 hour, cleared from blood by 24 hours, and was eliminated from the body after 4 days. The proposed method for efficient amide formation is a superior alternative to existing coupling methods, opening a door to novel synthesis of MRI contrast agents and beyond.
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Affiliation(s)
- Kyle D W Vollett
- Institute of Biomedical Engineering, University of Toronto, Canada.
- Translational Biology & Engineering Program, Ted Rogers Centre for Heart Research, Toronto, Canada
| | - Hai-Ling Margaret Cheng
- Institute of Biomedical Engineering, University of Toronto, Canada.
- Translational Biology & Engineering Program, Ted Rogers Centre for Heart Research, Toronto, Canada
- The Edward S. Rogers Sr. Department of Electrical & Computer Engineering, University of Toronto, Canada
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2
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Polivanovskaia DA, Birin KP, Averin AA, Gorbunova YG, Tsivadze AY. Photocatalytic activity of pyrazinoporphyrin in the presence of gold nanoparticles and nanoclusters. Russ Chem Bull 2022. [DOI: 10.1007/s11172-021-3321-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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3
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Al Isawi WA, Salome AZ, Ahmed BM, Zeller M, Mezei G. Selective binding of anions by rigidified nanojars: sulfate vs. carbonate. Org Biomol Chem 2021; 19:7641-7654. [PMID: 34524323 DOI: 10.1039/d1ob01318a] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Selective binding and transport of highly hydrophilic anions is ubiquitous in nature, as anion binding proteins can differentiate between similar anions with over a million-fold efficiency. While comparable selectivity has occasionally been achieved for certain anions using small, artificial receptors, the selective binding of certain anions, such as sulfate in the presence of carbonate, remains a very challenging task. Nanojars of the formula [anion⊂{Cu(OH)(pz)}n]2- (pz = pyrazolate; n = 27-33) are totally selective for either CO32- or SO42- over anions such as NO3-, ClO4-, BF4-, Cl-, Br- and I-, but cannot differentiate between the two. We hypothesized that rigidification of the nanojar outer shell by tethering pairs of pyrazole moieties together will restrict the possible orientations of the OH hydrogen-bond donor groups in the anion-binding cavity of nanojars, similarly to anion-binding proteins, and will lead to selectivity. Indeed, by using either homoleptic or heteroleptic nanojars of the general formula [anion⊂Cun(OH)n(L2-L6)y(pz)n-2y]2- (n = 26-31) based on a series of homologous ligands HpzCH2(CH2)xCH2pzH (x = 0-4; H2L2-H2L6), selectivity for carbonate (with L2 and with L4-L6/pz mixtures) or for sulfate (with L3) has been achieved. The synthesis of new ligands H2L3, H2L4 and H2L5, X-ray crystal structures of H2L4 and the tetrahydropyranyl-protected derivatives (THP)2L4 and (THP)2L5, synthesis and characterization by electrospray-ionization mass spectrometry (ESI-MS) of carbonate- and sulfate-nanojars derived from ligands H2L2-H2L6, as well as detailed selectivity studies for CO32-vs. SO42- using these novel nanojars are presented.
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Affiliation(s)
- Wisam A Al Isawi
- Department of Chemistry, Western Michigan University, Kalamazoo, Michigan 49008, USA.
| | - Austin Z Salome
- Department of Chemistry, Western Michigan University, Kalamazoo, Michigan 49008, USA.
| | - Basil M Ahmed
- Department of Chemistry, Western Michigan University, Kalamazoo, Michigan 49008, USA.
| | - Matthias Zeller
- Department of Chemistry, Purdue University, West Lafayette, Indiana 47907, USA
| | - Gellert Mezei
- Department of Chemistry, Western Michigan University, Kalamazoo, Michigan 49008, USA.
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4
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Nanomaterials for the detection of halides and halogen oxyanions by colorimetric and luminescent techniques: A critical overview. Trends Analyt Chem 2020. [DOI: 10.1016/j.trac.2020.115837] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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5
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Chabloz NG, Perry HL, Yoon IC, Coulson AJ, White AJP, Stasiuk GJ, Botnar RM, Wilton-Ely JDET. Combined Magnetic Resonance Imaging and Photodynamic Therapy Using Polyfunctionalised Nanoparticles Bearing Robust Gadolinium Surface Units. Chemistry 2020; 26:4552-4566. [PMID: 31981387 DOI: 10.1002/chem.201904757] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2019] [Indexed: 12/12/2022]
Abstract
A robust dithiocarbamate tether allows novel gadolinium units based on DOTAGA (q=1) to be attached to the surface of gold nanoparticles (2.6-4.1 nm diameter) along with functional units offering biocompatibility, targeting and photodynamic therapy. A dramatic increase in relaxivity (r1 ) per Gd unit from 5.01 mm-1 s-1 in unbound form to 31.68 mm-1 s-1 (10 MHz, 37 °C) is observed when immobilised on the surface due to restricted rotation and enhanced rigidity of the Gd complex on the nanoparticle surface. The single-step synthetic route provides a straightforward and versatile way of preparing multifunctional gold nanoparticles, including examples with conjugated zinc-tetraphenylporphyrin photosensitizers. The lack of toxicity of these materials (MTT assays) is transformed on irradiation of HeLa cells for 30 minutes (PDT), leading to 75 % cell death. In addition to passive targeting, the inclusion of units capable of actively targeting overexpressed folate receptors illustrates the potential of these assemblies as targeted theranostic agents.
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Affiliation(s)
- Nicolas G Chabloz
- Department of Chemistry, Molecular Sciences Research Hub, Imperial College London, White City Campus, London, W12 0BZ, UK
| | - Hannah L Perry
- Department of Chemistry, Molecular Sciences Research Hub, Imperial College London, White City Campus, London, W12 0BZ, UK.,Division of Imaging Sciences and Biomedical Engineering, King's College London, St Thomas' Hospital, London, SE1 7EH, UK
| | - Il-Chul Yoon
- Department of Chemistry, Molecular Sciences Research Hub, Imperial College London, White City Campus, London, W12 0BZ, UK
| | - Andrew J Coulson
- Department of Chemistry, Molecular Sciences Research Hub, Imperial College London, White City Campus, London, W12 0BZ, UK
| | - Andrew J P White
- Department of Chemistry, Molecular Sciences Research Hub, Imperial College London, White City Campus, London, W12 0BZ, UK
| | - Graeme J Stasiuk
- School of Life Sciences, Biomedical Sciences, University of Hull, Hull, HU6 7RX, UK
| | - René M Botnar
- Division of Imaging Sciences and Biomedical Engineering, King's College London, St Thomas' Hospital, London, SE1 7EH, UK
| | - James D E T Wilton-Ely
- Department of Chemistry, Molecular Sciences Research Hub, Imperial College London, White City Campus, London, W12 0BZ, UK.,London Centre for Nanotechnology (LCN), London, UK
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6
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Chabloz NG, Wenzel MN, Perry HL, Yoon IC, Molisso S, Stasiuk GJ, Elson DS, Cass AEG, Wilton-Ely JDET. Polyfunctionalised Nanoparticles Bearing Robust Gadolinium Surface Units for High Relaxivity Performance in MRI. Chemistry 2019; 25:10895-10906. [PMID: 31127668 DOI: 10.1002/chem.201901820] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2019] [Revised: 05/16/2019] [Indexed: 12/19/2022]
Abstract
The first example of an octadentate gadolinium unit based on DO3A (hydration number q=1) with a dithiocarbamate tether has been designed and attached to the surface of gold nanoparticles (around 4.4 nm in diameter). In addition to the superior robustness of this attachment, the restricted rotation of the Gd complex on the nanoparticle surface leads to a dramatic increase in relaxivity (r1 ) from 4.0 mm-1 s-1 in unbound form to 34.3 mm-1 s-1 (at 10 MHz, 37 °C) and 22±2 mm-1 s-1 (at 63.87 MHz, 25 °C) when immobilised on the surface. The one-pot synthetic route provides a straightforward and versatile way of preparing a range of multifunctional gold nanoparticles. The incorporation of additional surface units for biocompatibility (PEG and thioglucose units) and targeting (folic acid) leads to little detrimental effect on the high relaxivity observed for these non-toxic multifunctional materials. In addition to the passive targeting attributed to gold nanoparticles, the inclusion of a unit capable of targeting the folate receptors overexpressed by cancer cells, such as HeLa cells, illustrates the potential of these assemblies.
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Affiliation(s)
- Nicolas G Chabloz
- Department of Chemistry, Imperial College London, Molecular Sciences Research Hub, White City Campus, London, W12 0BZ, UK
| | - Margot N Wenzel
- Department of Chemistry, Imperial College London, Molecular Sciences Research Hub, White City Campus, London, W12 0BZ, UK
| | - Hannah L Perry
- Department of Chemistry, Imperial College London, Molecular Sciences Research Hub, White City Campus, London, W12 0BZ, UK
| | - Il-Chul Yoon
- Department of Chemistry, Imperial College London, Molecular Sciences Research Hub, White City Campus, London, W12 0BZ, UK
| | - Susannah Molisso
- Department of Chemistry, Imperial College London, Molecular Sciences Research Hub, White City Campus, London, W12 0BZ, UK
| | - Graeme J Stasiuk
- School of Life Sciences, Biomedical Sciences, University of Hull, Hull, HU6 7RX, UK
| | - Daniel S Elson
- Hamlyn Centre for Robotic Surgery, Institute of Global Health Innovation and Department of Surgery and Cancer, Imperial College London, UK
| | - Anthony E G Cass
- Department of Chemistry, Imperial College London, Molecular Sciences Research Hub, White City Campus, London, W12 0BZ, UK.,Institute of Biomedical Engineering, Imperial College London, UK.,London Centre for Nanotechnology (LCN), UK
| | - James D E T Wilton-Ely
- Department of Chemistry, Imperial College London, Molecular Sciences Research Hub, White City Campus, London, W12 0BZ, UK.,London Centre for Nanotechnology (LCN), UK
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7
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Robson JA, Gonzàlez de Rivera F, Jantan KA, Wenzel MN, White AJP, Rossell O, Wilton-Ely JDET. Bifunctional Chalcogen Linkers for the Stepwise Generation of Multimetallic Assemblies and Functionalized Nanoparticles. Inorg Chem 2016; 55:12982-12996. [DOI: 10.1021/acs.inorgchem.6b02409] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Jonathan A. Robson
- Department of Chemistry, Imperial College London, South Kensington Campus, London SW7 2AZ, U.K
| | - Ferran Gonzàlez de Rivera
- Department of Chemistry, Imperial College London, South Kensington Campus, London SW7 2AZ, U.K
- Departament de Química Inorgànica, Universitat de Barcelona, Martí Franquès 1-11, 08028 Barcelona, Spain
| | - Khairil A. Jantan
- Department of Chemistry, Imperial College London, South Kensington Campus, London SW7 2AZ, U.K
| | - Margot N. Wenzel
- Department of Chemistry, Imperial College London, South Kensington Campus, London SW7 2AZ, U.K
| | - Andrew J. P. White
- Department of Chemistry, Imperial College London, South Kensington Campus, London SW7 2AZ, U.K
| | - Oriol Rossell
- Departament de Química Inorgànica, Universitat de Barcelona, Martí Franquès 1-11, 08028 Barcelona, Spain
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8
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Sherwood R, Gonzàlez de Rivera F, Wan JH, Zhang Q, White AJP, Rossell O, Hogarth G, Wilton-Ely JDET. Multimetallic Complexes Based on a Diphosphine-Dithiocarbamate “Janus” Ligand. Inorg Chem 2015; 54:4222-30. [DOI: 10.1021/ic5028527] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Rebecca Sherwood
- Department of Chemistry, Imperial College London, South Kensington Campus, London SW7 2AZ, U.K
| | - Ferran Gonzàlez de Rivera
- Department of Chemistry, Imperial College London, South Kensington Campus, London SW7 2AZ, U.K
- Departament de Química
Inorgànica, Universitat de Barcelona, Martí Franquès 1-11, 08028, Barcelona, Spain
| | - Jane Hui Wan
- Department of Chemistry, Imperial College London, South Kensington Campus, London SW7 2AZ, U.K
| | - Qi Zhang
- Hainan Provincial Key Laboratory of Fine Chemicals, Hainan University, Haikou, Hainan 570228, China
| | - Andrew J. P. White
- Department of Chemistry, Imperial College London, South Kensington Campus, London SW7 2AZ, U.K
| | - Oriol Rossell
- Departament de Química
Inorgànica, Universitat de Barcelona, Martí Franquès 1-11, 08028, Barcelona, Spain
| | - Graeme Hogarth
- Department of Chemistry, King’s College London, Britannia House, 7 Trinity Street, London SE1 1DB, U.K
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9
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Shaikh AJ, Rabbani F, Sherazi TA, Iqbal Z, Mir S, Shahzad SA. Binding strength of porphyrin-gold nanoparticle hybrids based on number and type of linker moieties and a simple method to calculate inner filter effects of gold nanoparticles using fluorescence spectroscopy. J Phys Chem A 2015; 119:1108-16. [PMID: 25611751 DOI: 10.1021/jp510924n] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
Gold nanoparticle-porphyrin assemblies were formed by binding functionalized porphyrins to gold nanoparticles (Au-NPs). Spectroscopic properties of hybrids and binding strength of porphyrins to Au-NPs were observed based on number and type of linker moieties using fluorescence spectroscopy. Binding appears to be dependent on number rather than type of linker moieties present on the porphyrin molecules, as tetraaminophenyl porphyrin shows the highest binding among the molecules we studied and causes agglomeration of nanoparticles due to presence of four linker groups. The inner filter effects of Au-NPs are considerably high due to their high extinction coefficient and cause large errors in the evaluation of quenching efficiencies. We have described a very simple method to calculate the inner filter effects of Au-NPs by first loading them with porphyrins and then replacing them with nonfluorescent ligands. The difference in the fluorescence of unbound porphyrins in the presence and absence of Au-NPs describes their inner filter effects.
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Affiliation(s)
- Ahson J Shaikh
- Department of Chemistry, COMSATS Institute of Information Technology , Abbottabad-22060, Pakistan
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10
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Hurtubise VL, McArdle JM, Naeem S, Toscani A, White AJP, Long NJ, Wilton-Ely JDET. Multimetallic Complexes and Functionalized Nanoparticles Based on Unsymmetrical Dithiocarbamate Ligands with Allyl and Propargyl Functionality. Inorg Chem 2014; 53:11740-8. [DOI: 10.1021/ic502015c] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Venesia L. Hurtubise
- Department of Chemistry, Imperial College London, South Kensington Campus, London SW7 2AZ, United Kingdom
| | - James M. McArdle
- Department of Chemistry, Imperial College London, South Kensington Campus, London SW7 2AZ, United Kingdom
| | - Saira Naeem
- Department of Chemistry, Imperial College London, South Kensington Campus, London SW7 2AZ, United Kingdom
| | - Anita Toscani
- Department of Chemistry, Imperial College London, South Kensington Campus, London SW7 2AZ, United Kingdom
| | - Andrew J. P. White
- Department of Chemistry, Imperial College London, South Kensington Campus, London SW7 2AZ, United Kingdom
| | - Nicholas J. Long
- Department of Chemistry, Imperial College London, South Kensington Campus, London SW7 2AZ, United Kingdom
| | - James D. E. T. Wilton-Ely
- Department of Chemistry, Imperial College London, South Kensington Campus, London SW7 2AZ, United Kingdom
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11
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Naeem S, Serapian SA, Toscani A, White AJP, Hogarth G, Wilton-Ely JDET. Ring-Closing Metathesis and Nanoparticle Formation Based on Diallyldithiocarbamate Complexes of Gold(I): Synthetic, Structural, and Computational Studies. Inorg Chem 2014; 53:2404-16. [DOI: 10.1021/ic402048a] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Saira Naeem
- Department of Chemistry, Imperial College London, South Kensington Campus, London SW7 2AZ, U.K
| | - Stefano A. Serapian
- Department of Chemistry, Imperial College London, South Kensington Campus, London SW7 2AZ, U.K
| | - Anita Toscani
- Department of Chemistry, Imperial College London, South Kensington Campus, London SW7 2AZ, U.K
| | - Andrew J. P. White
- Department of Chemistry, Imperial College London, South Kensington Campus, London SW7 2AZ, U.K
| | - Graeme Hogarth
- Department of Chemistry, University College London, 20 Gordon
Street, London WC1H 0AJ, U.K
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12
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Sung S, Holmes H, Wainwright L, Toscani A, Stasiuk GJ, White AJP, Bell JD, Wilton-Ely JDET. Multimetallic Complexes and Functionalized Gold Nanoparticles Based on a Combination of d- and f-Elements. Inorg Chem 2014; 53:1989-2005. [DOI: 10.1021/ic401936w] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Simon Sung
- Department of Chemistry, Imperial College London, South Kensington Campus, London SW7 2AZ, United Kingdom
| | - Holly Holmes
- Department of Chemistry, Imperial College London, South Kensington Campus, London SW7 2AZ, United Kingdom
| | - Luke Wainwright
- Department of Chemistry, Imperial College London, South Kensington Campus, London SW7 2AZ, United Kingdom
| | - Anita Toscani
- Department of Chemistry, Imperial College London, South Kensington Campus, London SW7 2AZ, United Kingdom
| | - Graeme J. Stasiuk
- Department of Chemistry, Imperial College London, South Kensington Campus, London SW7 2AZ, United Kingdom
| | - Andrew J. P. White
- Department of Chemistry, Imperial College London, South Kensington Campus, London SW7 2AZ, United Kingdom
| | - Jimmy D. Bell
- Metabolic and Molecular Imaging Group,
MRC Clinical Sciences Centre, Imperial College London, Hammersmith Hospital, London W12 0NN, United Kingdom
| | - James D. E. T. Wilton-Ely
- Department of Chemistry, Imperial College London, South Kensington Campus, London SW7 2AZ, United Kingdom
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13
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Watthanaphanit A, Panomsuwan G, Saito N. A novel one-step synthesis of gold nanoparticles in an alginate gel matrix by solution plasma sputtering. RSC Adv 2014. [DOI: 10.1039/c3ra45029e] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
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14
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Valicsek Z, Horváth O. Application of the electronic spectra of porphyrins for analytical purposes: The effects of metal ions and structural distortions. Microchem J 2013. [DOI: 10.1016/j.microc.2012.07.002] [Citation(s) in RCA: 91] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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15
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Mieszawska AJ, Mulder WJM, Fayad ZA, Cormode DP. Multifunctional gold nanoparticles for diagnosis and therapy of disease. Mol Pharm 2013; 10:831-47. [PMID: 23360440 DOI: 10.1021/mp3005885] [Citation(s) in RCA: 449] [Impact Index Per Article: 40.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Gold nanoparticles (AuNPs) have a number of physical properties that make them appealing for medical applications. For example, the attenuation of X-rays by gold nanoparticles has led to their use in computed tomography imaging and as adjuvants for radiotherapy. AuNPs have numerous other applications in imaging, therapy and diagnostic systems. The advanced state of synthetic chemistry of gold nanoparticles offers precise control over physicochemical and optical properties. Furthermore gold cores are inert and are considered to be biocompatible and nontoxic. The surface of gold nanoparticles can easily be modified for a specific application, and ligands for targeting, drugs or biocompatible coatings can be introduced. AuNPs can be incorporated into larger structures such as polymeric nanoparticles or liposomes that deliver large payloads for enhanced diagnostic applications, efficiently encapsulate drugs for concurrent therapy or add additional imaging labels. This array of features has led to the aforementioned applications in biomedical fields, but more recently in approaches where multifunctional gold nanoparticles are used for multiple methods, such as concurrent diagnosis and therapy, so-called theranostics. This review covers basic principles and recent findings in gold nanoparticle applications for imaging, therapy and diagnostics, with a focus on reports of multifunctional AuNPs.
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Affiliation(s)
- Aneta J Mieszawska
- Translational and Molecular Imaging Institute and Imaging Science Laboratories, Mount Sinai School of Medicine, One Gustave L. Levy Place, New York, New York 10029, USA
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16
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Gilday LC, White NG, Beer PD. Halogen- and hydrogen-bonding triazole-functionalised porphyrin-based receptors for anion recognition. Dalton Trans 2013; 42:15766-73. [DOI: 10.1039/c3dt52093e] [Citation(s) in RCA: 72] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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17
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Meso-Tetraarylporphyrins Bearing Nitro or Amino Groups: Synthetic Strategies and Reactivity Profiles. TOPICS IN HETEROCYCLIC CHEMISTRY 2013. [DOI: 10.1007/7081_2013_101] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/14/2023]
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18
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Sbardella P, Monti D, D'Epifanio A, Stefanelli M, Naitana ML, Venanzi M, Di Natale C, Paolesse R. Preparation and spectroscopic studies of silica nanoparticle-porphyrin hybrids held by noncovalent interactions. J PORPHYR PHTHALOCYA 2012. [DOI: 10.1142/s1088424611003197] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Amphiphilic porphyrin derivatives adsorbed onto silica nanoparticles via noncovalent interactions have been prepared and characterized. The organic-inorganic hybrids have been obtained by simply stirring a nanoparticle suspension into an aqueous solvent mixture of porphyrin aggregates. The systems obtained show good stability in aqueous solvents, at different pH, and also in toluene. Analogous protocol has been applied to the macrocycles in monomeric form, obtaining the corresponding nanoparticle-porphyrin adducts. These systems are of interest for the development of sensors and medicinal application.
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Affiliation(s)
- Paola Sbardella
- Dipartimento di Scienze e Tecnologie Chimiche, Università di Roma "Tor Vergata", Via della Ricerca Scientifica 1, 00133 Rome, Italy
| | - Donato Monti
- Dipartimento di Scienze e Tecnologie Chimiche, Università di Roma "Tor Vergata", Via della Ricerca Scientifica 1, 00133 Rome, Italy
| | - Alessandra D'Epifanio
- Dipartimento di Scienze e Tecnologie Chimiche, Università di Roma "Tor Vergata", Via della Ricerca Scientifica 1, 00133 Rome, Italy
| | - Manuela Stefanelli
- Dipartimento di Scienze e Tecnologie Chimiche, Università di Roma "Tor Vergata", Via della Ricerca Scientifica 1, 00133 Rome, Italy
| | - Mario L. Naitana
- Dipartimento di Scienze e Tecnologie Chimiche, Università di Roma "Tor Vergata", Via della Ricerca Scientifica 1, 00133 Rome, Italy
| | - Mariano Venanzi
- Dipartimento di Scienze e Tecnologie Chimiche, Università di Roma "Tor Vergata", Via della Ricerca Scientifica 1, 00133 Rome, Italy
| | - Corrado Di Natale
- Dipartimento di Ingegneria Elettronica, Università di Roma "Tor Vergata", Via del Politecnico 1, 00133 Rome, Italy
| | - Roberto Paolesse
- Dipartimento di Scienze e Tecnologie Chimiche, Università di Roma "Tor Vergata", Via della Ricerca Scientifica 1, 00133 Rome, Italy
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19
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Biyikal M, Hecht M, Martínez-Máñez R, Rurack K, Sancenón F. Supramolecular Hybrid Nanomaterials As Prospective Sensing Platforms. Supramol Chem 2012. [DOI: 10.1002/9780470661345.smc199] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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20
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Gilday LC, White NG, Beer PD. Triazole- and triazolium-containing porphyrin-cages for optical anion sensing. Dalton Trans 2012; 41:7092-7. [DOI: 10.1039/c2dt30124e] [Citation(s) in RCA: 58] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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21
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Liu Y, Liu Y, Liang Z, Li X, Liu S, Yu J. Enhanced Sensitivity and Selectivity of Chemosensor for Malonate by Anchoring on Gold Nanoparticles. CHINESE J CHEM 2011. [DOI: 10.1002/cjoc.201190118] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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22
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Leonov AP, Wei A. Photolithography of Dithiocarbamate-Anchored Monolayers and Polymers on Gold. ACTA ACUST UNITED AC 2011; 21:4371-4376. [PMID: 21894240 DOI: 10.1039/c0jm04153j] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Dithiocarbamate (DTC)-anchored monolayers and polymers were investigated as positive resists for UV photolithography on planar and roughened Au surfaces. DTCs were formed in situ by the condensation of CS(2) with monovalent or polyvalent amines such as linear polyethyleneimine (PEI) under mildly basic aqueous conditions, just prior to surface passivation. The robust adsorption of the polyvalent PEI-DTC to Au surfaces supported high levels of resistance to photoablation, providing opportunities to generate thin films with gradient functionality. Treatment of photopatterned substrates with alkanethiols produced binary coatings, enabling a direct visual comparison of DTC- and thiol-passivated surfaces against chemically induced corrosion using confocal microscopy.
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Affiliation(s)
- Alexei P Leonov
- Department of Chemistry, 560 Oval Drive, Purdue University, West Lafayette, Indiana 47907-2084
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Functionalised dithiocarbamate complexes: Complexes based on indoline, indole and substituted piperazine backbones – X-ray crystal structure of [Ni(S2CNC3H6C6H4)2]. Inorganica Chim Acta 2010. [DOI: 10.1016/j.ica.2010.05.061] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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24
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Martínez-Máñez R, Sancenón F, Hecht M, Biyikal M, Rurack K. Nanoscopic optical sensors based on functional supramolecular hybrid materials. Anal Bioanal Chem 2010; 399:55-74. [DOI: 10.1007/s00216-010-4198-2] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2010] [Revised: 09/02/2010] [Accepted: 09/05/2010] [Indexed: 01/10/2023]
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Cormode DP, Evans AJ, Davis JJ, Beer PD. Amplification of anion sensing by disulfide functionalized ferrocene and ferrocene-calixarene receptors adsorbed onto gold surfaces. Dalton Trans 2010; 39:6532-41. [PMID: 20552121 DOI: 10.1039/c0dt00217h] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A disulfide functionalized bis-ferrocene urea acyclic receptor and disulfide functionalized mono- and bis-ferrocene amide and urea appended upper rim calix[4]arene receptors were prepared for the fabrication of SAM redox-active anion sensors. 1H NMR and diffusive voltammetric anion recognition investigations revealed each receptor to be capable of complexing and electrochemically sensing anions via cathodic perturbations of the respective receptor's ferrocene/ferrocenium redox couple. SAMs of a ferrocene urea receptor 3 and ferrocene urea calixarene receptor 17 exhibited significant enhanced magnitudes of cathodic response upon anion addition as compared to observed diffusive perturbations. SAMs of 17 were demonstrated to sense the perrhenate anion in aqueous solutions.
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Affiliation(s)
- David P Cormode
- Department of Chemistry, Inorganic Chemistry Laboratory, University of Oxford, South Parks Road, Oxford, UK
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Naeem S, Delaude L, White AJP, Wilton-Ely JDET. The Use of Imidazolium-2-dithiocarboxylates in the Formation of Gold(I) Complexes and Gold Nanoparticles†Dedicated to Prof. Dr. Hubert Schmidbaur on the occasion of his 75th birthday. Inorg Chem 2010; 49:1784-93. [DOI: 10.1021/ic9021504] [Citation(s) in RCA: 57] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Saira Naeem
- Department of Chemistry, Imperial College London, South Kensington Campus, London SW7 2AZ, U.K
| | - Lionel Delaude
- Centre for Education and Research on Macromolecules (CERM), Institut de Chimie (B6a), Université de Liège, Sart-Tilman par 4000 Liège, Belgium
| | - Andrew J. P. White
- Department of Chemistry, Imperial College London, South Kensington Campus, London SW7 2AZ, U.K
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Davis JJ, Orlowski GA, Rahman H, Beer PD. Mechanically interlocked and switchable molecules at surfaces. Chem Commun (Camb) 2010; 46:54-63. [DOI: 10.1039/b915122b] [Citation(s) in RCA: 84] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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28
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Zhao Y, Newton JN, Liu J, Wei A. Dithiocarbamate-coated SERS substrates: sensitivity gain by partial surface passivation. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2009; 25:13833-13839. [PMID: 19685897 DOI: 10.1021/la902087e] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
The surface-enhanced Raman scattering (SERS) activity of nanoporous gold (NPG) can be boosted by controlled surface passivation. The SERS activities of unfunctionalized NPG were first optimized by etching substrates with NaI/I(2) (triiodide) and using 2-mercaptopyridine (2-MP) as the probing analyte. Gains in analyte sensitivity were then achieved by passivating the superficial regions of the NPG substrates with dimethyldithiocarbamate (Me(2)DTC) while leaving the more recessed "hot spots" available for SERS detection. Partial surface passivation with DTCs increased the substrate sensitivity to chemisorptive analytes such as 2-MP by an order of magnitude, whereas surface saturation lowered the sensitivity by an order of magnitude. The partially passivated NPG films can also be functionalized with supramolecular receptors for chemoselective SERS. Installation of a DTC-anchored terpyridine enabled the detection of divalent metal ions at trace levels, as determined by the complexation-induced shift of a characteristic Raman peak of the metal ion receptor.
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Affiliation(s)
- Yan Zhao
- Department of Chemistry, Purdue University, West Lafayette, Indiana 47907-2084, USA
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Knight ER, Leung NH, Thompson AL, Hogarth G, Wilton-Ely JDET. Multimetallic Arrays: Bi-, Tri-, Tetra-, and Hexametallic Complexes Based on Gold(I) and Gold(III) and the Surface Functionalization of Gold Nanoparticles with Transition Metals. Inorg Chem 2009; 48:3866-74. [DOI: 10.1021/ic802442d] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Edward R. Knight
- Chemistry Research Laboratory, University of Oxford, Mansfield Road, Oxford OX1 3TA, U.K., Department of Chemistry, University College London, 20 Gordon Street, London WC1H 0AJ, U.K., and Department of Chemistry, Imperial College London, South Kensington Campus, London SW7 2AZ, U.K
| | - Nina H. Leung
- Chemistry Research Laboratory, University of Oxford, Mansfield Road, Oxford OX1 3TA, U.K., Department of Chemistry, University College London, 20 Gordon Street, London WC1H 0AJ, U.K., and Department of Chemistry, Imperial College London, South Kensington Campus, London SW7 2AZ, U.K
| | - Amber L. Thompson
- Chemistry Research Laboratory, University of Oxford, Mansfield Road, Oxford OX1 3TA, U.K., Department of Chemistry, University College London, 20 Gordon Street, London WC1H 0AJ, U.K., and Department of Chemistry, Imperial College London, South Kensington Campus, London SW7 2AZ, U.K
| | - G. Hogarth
- Chemistry Research Laboratory, University of Oxford, Mansfield Road, Oxford OX1 3TA, U.K., Department of Chemistry, University College London, 20 Gordon Street, London WC1H 0AJ, U.K., and Department of Chemistry, Imperial College London, South Kensington Campus, London SW7 2AZ, U.K
| | - James D. E. T. Wilton-Ely
- Chemistry Research Laboratory, University of Oxford, Mansfield Road, Oxford OX1 3TA, U.K., Department of Chemistry, University College London, 20 Gordon Street, London WC1H 0AJ, U.K., and Department of Chemistry, Imperial College London, South Kensington Campus, London SW7 2AZ, U.K
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Knight ER, Cowley AR, Hogarth G, Wilton-Ely JDET. Bifunctional dithiocarbamates: a bridge between coordination chemistry and nanoscale materials. Dalton Trans 2009:607-9. [DOI: 10.1039/b814476a] [Citation(s) in RCA: 52] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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31
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Knight ER, Leung NH, Lin YH, Cowley AR, Watkin DJ, Thompson AL, Hogarth G, Wilton-Ely JDET. Multimetallic arrays: Symmetrical bi-, tri- and tetrametallic complexes based on the group 10 metals and the functionalisation of gold nanoparticles with nickel-phosphine surface units. Dalton Trans 2009:3688-97. [DOI: 10.1039/b821947h] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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32
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Cormode DP, Drew MGB, Jagessar R, Beer PD. Metalloporphyrin anion sensors: the effect of the metal centre on the anion binding properties of amide-functionalised and tetraphenyl metalloporphyrins. Dalton Trans 2008:6732-41. [PMID: 19153621 DOI: 10.1039/b807153e] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This article describes the synthesis and anion binding properties of a series of 'picket fence' metalloporphyrin complexes, within which the metal centre is systematically varied. The porphyrin structure contains four amide bonds and is the same for each metal. The anion binding properties of these receptors are further contrasted with those of their tetraphenylporphyrin congeners to elucidate both the effect of the metal centre and the influence of the amide groups on the anion recognition process. Anion binding was demonstrated using UV/visible and (1)H NMR spectroscopies, electrochemistry and luminescence. The metal centre was found to be highly influential in the strength and selectivity of binding; for example, the cadmium and mercury complexes exhibited far greater affinities for anions than the zinc complexes in competitive solvents such as DMSO. The amide functionalities were found to enhance the anion binding process.
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Affiliation(s)
- David P Cormode
- Department of Chemistry, Inorganic Chemistry Laboratory, University of Oxford, South Parks Road, Oxford, UK
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Chen L, Zhong Y, Zeng F, Zhao J, Wu S. Interactions Between Gold Nanoparticles and Polymer Bearing 3-Styryl Thiophene Chromophores. J Inorg Organomet Polym Mater 2008. [DOI: 10.1007/s10904-008-9226-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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