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Reinke L, Koch M, Müller-Renno C, Kubik S. Selective sensing of adenosine monophosphate (AMP) over adenosine diphosphate (ADP), adenosine triphosphate (ATP), and inorganic phosphates with zinc(II)-dipicolylamine-containing gold nanoparticles. Org Biomol Chem 2021; 19:3893-3900. [PMID: 33949587 DOI: 10.1039/d1ob00341k] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Mixed monolayer-protected gold nanoparticles containing surface-bound triethylene glycol and dipicolylamine groups aggregated in water/methanol, 1 : 2 (v/v) in the presence of nucleotides, if the solution also contained zinc(ii) nitrate to convert the dipicolylamine units into the corresponding zinc complexes. Nanoparticle aggregation could be followed with the naked eye by the colour change of the solution from red to purple followed by nanoparticle precipitation. The sensitivity was highest for adenosine triphosphate (ATP), which could be detected at concentrations >10 μM, and decreased over adenosine diphosphate (ADP) to adenosine monophosphate (AMP), consistent with the typically higher affinity of zinc(ii)-dipicolylamine-derived receptors for higher charged nucleotides. Inorganic sodium diphosphate and triphosphate interfered in the assay by also inducing nanoparticle aggregation. However, while the nucleotide-induced aggregates persisted even at higher analyte concentrations, the nanoparticles that were precipitated with inorganic salts redissolved again when the salt concentration was increased. The thus resulting solutions retained their ability to respond to nucleotides, but they now preferentially responded to AMP. Accordingly, AMP could be sensed selectively at concentrations ≥50 μM in an aqueous environment, even in the presence of other nucleotides and inorganic anions. This work thus introduces a novel approach for the sensing of a nucleotide that is often the most difficult analyte to detect with other assays.
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Affiliation(s)
- Lena Reinke
- Technische Universität Kaiserslautern, Fachbereich Chemie - Organische Chemie, Erwin-Schrödinger-Straße 54, 67663 Kaiserslautern, Germany.
| | - Marcus Koch
- INM - Leibniz Institute for New Materials, Campus D2 2, 66123 Saarbrücken, Germany
| | - Christine Müller-Renno
- Technische Universität Kaiserslautern, Fachbereich Physik und Forschungszentrum OPTIMAS, AG Grenzflächen, Nanomaterialien und Biophysik, Erwin-Schrödinger-Straße 56, 67663 Kaiserslautern, Germany
| | - Stefan Kubik
- Technische Universität Kaiserslautern, Fachbereich Chemie - Organische Chemie, Erwin-Schrödinger-Straße 54, 67663 Kaiserslautern, Germany.
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Reinke L, Bartl J, Koch M, Kubik S. Optical detection of di- and triphosphate anions with mixed monolayer-protected gold nanoparticles containing zinc(II)-dipicolylamine complexes. Beilstein J Org Chem 2020; 16:2687-2700. [PMID: 33178359 PMCID: PMC7607427 DOI: 10.3762/bjoc.16.219] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2020] [Accepted: 10/22/2020] [Indexed: 01/02/2023] Open
Abstract
Gold nanoparticles covered with a mixture of ligands of which one type contains solubilizing triethylene glycol residues and the other peripheral zinc(II)–dipicolylamine (DPA) complexes allowed the optical detection of hydrogenphosphate, diphosphate, and triphosphate anions in water/methanol 1:2 (v/v). These anions caused the bright red solutions of the nanoparticles to change their color because of nanoparticle aggregation followed by precipitation, whereas halides or oxoanions such as sulfate, nitrate, or carbonate produced no effect. The sensitivity of phosphate sensing depended on the nature of the anion, with diphosphate and triphosphate inducing visual changes at significantly lower concentrations than hydrogenphosphate. In addition, the sensing sensitivity was also affected by the ratio of the ligands on the nanoparticle surface, decreasing as the number of immobilized zinc(II)–dipicolylamine groups increased. A nanoparticle containing a 9:1 ratio of the solubilizing and the anion-binding ligand showed a color change at diphosphate and triphosphate concentrations as low as 10 μmol/L, for example, and precipitated at slightly higher concentrations. Hydrogenphosphate induced a nanoparticle precipitation only at a concentration of ca. 400 μmol/L, at which the precipitates formed in the presence of diphosphates and triphosphates redissolved. A nanoparticle containing fewer binding sites was more sensitive, while increasing the relative number of zinc(II)–dipicolylamine complexes beyond 25% had a negative impact on the limit of detection and the optical response. Transmission electron microscopy provided evidence that the changes of the nanoparticle properties observed in the presence of the phosphates were due to a nanoparticle crosslinking, consistent with the preferred binding mode of zinc(II)–dipicolylamine complexes with phosphate anions which involves binding of the anion between two metal centers. This work thus provided information on how the behavior of mixed monolayer-protected gold nanoparticles is affected by multivalent interactions, at the same time introducing a method to assess whether certain biologically relevant anions are present in an aqueous solution within a specific concentration range.
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Affiliation(s)
- Lena Reinke
- Fachbereich Chemie - Organische Chemie, Technische Universität Kaiserslautern, Erwin-Schrödinger-Straße, 67663 Kaiserslautern, Germany
| | - Julia Bartl
- Fachbereich Chemie - Organische Chemie, Technische Universität Kaiserslautern, Erwin-Schrödinger-Straße, 67663 Kaiserslautern, Germany
| | - Marcus Koch
- INM - Leibniz Institute for New Materials, Campus D2 2, 66123 Saarbrücken, Germany
| | - Stefan Kubik
- Fachbereich Chemie - Organische Chemie, Technische Universität Kaiserslautern, Erwin-Schrödinger-Straße, 67663 Kaiserslautern, Germany
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Liu K, He Z, Curtin JF, Byrne HJ, Tian F. A novel, rapid, seedless, in situ synthesis method of shape and size controllable gold nanoparticles using phosphates. Sci Rep 2019; 9:7421. [PMID: 31092878 PMCID: PMC6520384 DOI: 10.1038/s41598-019-43921-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2019] [Accepted: 05/01/2019] [Indexed: 01/14/2023] Open
Abstract
We hereby report a novel synthesis method of size and shape controllable gold nanoparticles that is rapid, in situ and seedless. Unlike most currently employed size and shape controllable synthesis methods, it takes place in a single step under room temperature within ~15 minutes. While mixtures of gold nanospheres around 70 nm and gold nanoplates with width ranging from 100 nm to 1000 nm can be synthesized in about 15 minutes by standard synthesis method using N-2-hydroxyethylpiperazine-N-2-ethanesulphonic acid (HEPES) to reduce Au(III), gold nanoflowers or mixtures of smaller gold nanospheres and nanoplates can be synthesized with the addition of disodium phosphate (Na2HPO4) or monosodium phosphate (NaH2PO4), respectively. Increasing the concentration of phosphate added significantly reduces the formation time of gold nanoparticles to seconds. By increasing the molar ratio of Na2HPO4: HEPES and NaH2PO4: HEPES, the size of gold nanoflowers and gold nanoparticle mixtures can be tuned from ~60 nm down to 1 nm and from ~70 nm to ~2.5 nm, respectively. The systematic structural changes are accompanied by similarly systematic colour changes associated with shifting of the surface plasmon resonance. The proposed mechanism of the synthesis process is also presented.
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Affiliation(s)
- Kangze Liu
- Environmental Sustainability and Health Institute, Technological University Dublin, Grangegorman, Dublin, 7, Ireland.
- School of Food Science and Environmental Health, College of Sciences and Health, Technological University Dublin, Cathal Brugha Street, Dublin, 1, Ireland.
- FOCAS Research Institute, Technological University Dublin, Kevin Street, Dublin, 8, Ireland.
| | - Zhonglei He
- Environmental Sustainability and Health Institute, Technological University Dublin, Grangegorman, Dublin, 7, Ireland
- School of Food Science and Environmental Health, College of Sciences and Health, Technological University Dublin, Cathal Brugha Street, Dublin, 1, Ireland
- FOCAS Research Institute, Technological University Dublin, Kevin Street, Dublin, 8, Ireland
| | - James F Curtin
- Environmental Sustainability and Health Institute, Technological University Dublin, Grangegorman, Dublin, 7, Ireland
- School of Food Science and Environmental Health, College of Sciences and Health, Technological University Dublin, Cathal Brugha Street, Dublin, 1, Ireland
| | - Hugh J Byrne
- FOCAS Research Institute, Technological University Dublin, Kevin Street, Dublin, 8, Ireland
| | - Furong Tian
- Environmental Sustainability and Health Institute, Technological University Dublin, Grangegorman, Dublin, 7, Ireland
- School of Food Science and Environmental Health, College of Sciences and Health, Technological University Dublin, Cathal Brugha Street, Dublin, 1, Ireland
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Romero-Aguilera F, Alonso-Esteban JI, Torija-Isasa ME, Cámara M, Sánchez-Mata MC. Improvement and Validation of Phytate Determination in Edible Seeds and Derived Products, as Mineral Complexing Activity. FOOD ANAL METHOD 2017. [DOI: 10.1007/s12161-017-0890-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Yoo S, Kim S, Eom MS, Kang S, Lim SH, Han MS. Development of a highly sensitive colorimetric thymidine triphosphate chemosensor using gold nanoparticles and the p-xylyl-bis(Hg2+-cyclen) complex: improved selectivity by metal ion tuning. Tetrahedron Lett 2016. [DOI: 10.1016/j.tetlet.2016.08.075] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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Agostinho AJ, de Souza Oliveira W, Anunciação DS, Santos JCC. Simple and Sensitive Spectrophotometric Method for Phytic Acid Determination in Grains. FOOD ANAL METHOD 2016. [DOI: 10.1007/s12161-015-0387-0] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Kim S, Eom MS, Yoo S, Han MS. Development of a highly selective colorimetric pyrophosphate probe based on a metal complex and gold nanoparticles: change in selectivity induced by metal ion tuning of the metal complex. Tetrahedron Lett 2015. [DOI: 10.1016/j.tetlet.2015.07.020] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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Lee M, Moon JH, Jun EJ, Kim G, Kwon YU, Lee JY, Yoon J. A tetranaphthoimidazolium receptor as a fluorescent chemosensor for phytate. Chem Commun (Camb) 2014; 50:5851-3. [DOI: 10.1039/c4cc02036g] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
A new tetranaphthoimidazolium receptor showed a selective fluorescence enhancement with phytate, myo-inositol hexakisphosphate (IP6), in 100% aqueous solution at pH 7.4.
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Affiliation(s)
- Minji Lee
- Department of Chemistry and Nano Science
- Global Top5 Research Program
- Ewha Womans University
- Seoul 120-750, Korea
| | - Jong Hun Moon
- Department of Chemistry
- Sungkyunkwan University
- Suwon 440-746, Korea
| | - Eun Jin Jun
- Department of Chemistry and Nano Science
- Global Top5 Research Program
- Ewha Womans University
- Seoul 120-750, Korea
| | - Gyoungmi Kim
- Department of Chemistry and Nano Science
- Global Top5 Research Program
- Ewha Womans University
- Seoul 120-750, Korea
| | - Yong-Uk Kwon
- Department of Chemistry and Nano Science
- Global Top5 Research Program
- Ewha Womans University
- Seoul 120-750, Korea
| | - Jin Yong Lee
- Department of Chemistry
- Sungkyunkwan University
- Suwon 440-746, Korea
| | - Juyoung Yoon
- Department of Chemistry and Nano Science
- Global Top5 Research Program
- Ewha Womans University
- Seoul 120-750, Korea
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