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Tamrakar A, Asthana S, Kumar P, Garg N, Pandey MD. Design of C2-symmetric pseudopeptides for in vivo detection of Cu(II) through controlled supramolecular nano-assembly. Org Biomol Chem 2024; 22:6409-6418. [PMID: 39069889 DOI: 10.1039/d4ob01011f] [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: 07/30/2024]
Abstract
Pseudopeptides are emerging next-generation soft bioinspired materials for biological applications. Therefore, a new class of C2-symmetric L-valine-derived pseudopeptides has been designed and developed. The newly developed pseudopeptides exhibit intracellular Cu(II) ion detection in live-cell fluorescence studies on RAW264.7 cells. We find that the changes in the amino acid side chain in desired pseudopeptidic moieties lead to a drastic change in their selectivity towards different metal ions. The L-valine-derived pseudopeptides exhibit selectivity towards Cu(II) ions through turn-off fluorescence, and the L-phenylalanine-derived pseudopeptides exhibit selectivity towards Zn(II) ions through turn-on fluorescence. In addition, the L-valine-derived pseudopeptides show an increase in spherical-shaped structures upon incubation with Cu(II) ions during supramolecular nano-assembly formation. In contrast, the L-phenylalanine-derived pseudopeptides show a decrease in spherical-shaped structures upon adding Zn(II) ions. The judiciously designed L-valine-derived and L-phenylalanine-derived bioinspired pseudopeptides are promising for exploring similar effects in various peptidomimetics in advanced biological applications.
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Affiliation(s)
- Arpna Tamrakar
- Department of Chemistry, Institute of Science, Banaras Hindu University Varanasi-221005, India.
| | - Surabhi Asthana
- Department of Chemistry, Institute of Science, Banaras Hindu University Varanasi-221005, India.
| | - Praveen Kumar
- Department of Medicinal Chemistry, Institute of Medical Sciences, Banaras Hindu University, Varanasi, Uttar Pradesh, 221005, India.
| | - Neha Garg
- Department of Medicinal Chemistry, Institute of Medical Sciences, Banaras Hindu University, Varanasi, Uttar Pradesh, 221005, India.
| | - Mrituanjay D Pandey
- Department of Chemistry, Institute of Science, Banaras Hindu University Varanasi-221005, India.
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Nigam KK, Pandey MD. Zinc-Induced Luminescent l-Valine-Based Pseudopeptidic Soft Bioinspired Materials for Precise Tuning of Nanoassembly. ACS Biomater Sci Eng 2024; 10:1393-1402. [PMID: 38386412 DOI: 10.1021/acsbiomaterials.3c01954] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/24/2024]
Abstract
Pseudopeptide-based bioinspired materials are emerging for selective recognition of biologically significant analytes and are applicable in the modern nanoscience field. Therefore, we have developed novel multifunctional C2-symmetric soft pseudopeptides by amino acid l-valine and salicylaldehyde fragments using a series of aliphatic linkers. They are highly selective and sensitive to Zn (II) ions under physiological conditions and reveal significant fluorescence enhancement with the PET mechanism. The molecular self-assembly shows zinc-induced morphological transformation of the rod-shaped assembly into a chain-like morphology. Such a metal-induced hierarchical nano-assembly may have relevance for specific nanobiotechnology applications.
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Affiliation(s)
- Kamlesh Kumar Nigam
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi 221005, India
| | - Mrituanjay D Pandey
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi 221005, India
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Tamrakar A, Kumar P, Garg N, Luis SV, Pandey MD. Intracellular Zn(II) induced turn-on fluorescence of an L-phenylalanine-derived pseudopeptide. Org Biomol Chem 2023; 21:8823-8828. [PMID: 37906437 DOI: 10.1039/d3ob01337e] [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: 11/02/2023]
Abstract
A C2 symmetric L-phenylalanine-derived pseudopeptide has been synthesized for selective and sensitive recognition of Zn(II) ions in aqueous-organic media. The pseudopeptidic probes exhibit intracellular Zn(II) ion-sensing capabilities as demonstrated via live-cell fluorescence studies on RAW264.7 cells. Hence, we present a bioinspired pseudopeptide for potential biological applications involving intracellular Zn(II) ion detection.
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Affiliation(s)
- Arpna Tamrakar
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi-221005, India.
| | - Praveen Kumar
- Department of Medicinal Chemistry, Faculty of Ayurveda, Institute of Medical Sciences, Banaras Hindu University, Varanasi, Uttar Pradesh, 221005, India
| | - Neha Garg
- Department of Medicinal Chemistry, Faculty of Ayurveda, Institute of Medical Sciences, Banaras Hindu University, Varanasi, Uttar Pradesh, 221005, India
| | - Santiago V Luis
- Departamento de Química Inorgánica y Orgánica, Universitat Jaume I, Av. SosBaynat, s/n, E-12071 Castellón, Spain
| | - Mrituanjay D Pandey
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi-221005, India.
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Nigam KK, Tamrakar A, Pandey MD. L-Phenylalanine-derived pseudopeptidic bioinspired materials: Zn(II) induced fluorescence enhancement and precise tuning of self-assembled nanostructures. SOFT MATTER 2023; 19:7266-7270. [PMID: 37740379 DOI: 10.1039/d3sm00703k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/24/2023]
Abstract
The pseudopeptide, owing to its intriguing, sustainable, and easily accessible multifunctional properties, has attracted significant research interest over the years. C2-symmetric pseudopeptidic chiral bioinspired materials have been developed for their selective sensitivity to Zn(II) ions via a turn-on fluorescence under physiological conditions. Moreover, these are promising soft materials for precisely tuning their self-assembled nanostructures after incubating with Zn(II), opening avenues for exploring similar effects in various peptidomimetics.
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Affiliation(s)
- Kamlesh Kumar Nigam
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi-221005, India.
| | - Arpna Tamrakar
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi-221005, India.
| | - Mrituanjay D Pandey
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi-221005, India.
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Doménech-Carbó A, Dias D, Doménech-Carbó MT. Cation and anion electrochemically assisted solid-state transformations of malachite green. Phys Chem Chem Phys 2019; 22:1502-1510. [PMID: 31872822 DOI: 10.1039/c9cp05835d] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
The possibility of the electrochemical promotion of different solid-to-solid transformations including the performance of successive cation and anion insertion processes has been tested using malachite green, a triphenylmethane dye, in contact with aqueous NaCl electrolyte. Electrochemical data using the voltammetry of microparticles methodology reveal significant differences with the solution phase electrochemistry of the dye. Voltammetric data, combined with atomic force microscopy, focusing ion beam-field emission scanning electron microscopy, and high-resolution field emission scanning electron microscopy permit characterization of the oxidative dissolution, oxidation with anion insertion, reduction with cation insertion and reduction with anion issue processes, whose thermochemical aspects, involving separate ion and electron transport contributions, are discussed.
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Affiliation(s)
- Antonio Doménech-Carbó
- Departament de Química Analítica, Universitat de València, Dr Moliner, 50, 46100 Burjassot, València, Spain.
| | - Daiane Dias
- Laboratório de Eletro-Espectro Analítica (LEEA), Escola de Química e Alimentos, Universidade Federal do Rio Grande, Av. Itália, km 8, Rio Grande, 96203-900, RS, Brazil
| | - María Teresa Doménech-Carbó
- Institut de Restauració del Patrimoni, Universitat Politècnica de València, Camí de Vera 14, 46022, València, Spain
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Scholz F, Doménech‐Carbó A. The Thermodynamics of Insertion Electrochemical Electrodes—A Team Play of Electrons and Ions across Two Separate Interfaces. Angew Chem Int Ed Engl 2019; 58:3279-3284. [DOI: 10.1002/anie.201809631] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2018] [Indexed: 11/07/2022]
Affiliation(s)
- Fritz Scholz
- Universität GreifswaldInstitut für Biochemie Felix-Hausdorff Strasse 4 17487, Greifswald Germany
| | - Antonio Doménech‐Carbó
- Departament de Química AnalíticaUniversitat de València Dr. Moliner, 50 46100 Burjassot València Spain
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Scholz F, Doménech‐Carbó A. The Thermodynamics of Insertion Electrochemical Electrodes—A Team Play of Electrons and Ions across Two Separate Interfaces. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/anie.201809631 10.1002/ange.201809631] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Fritz Scholz
- Universität GreifswaldInstitut für Biochemie Felix-Hausdorff Strasse 4 17487, Greifswald Germany
| | - Antonio Doménech‐Carbó
- Departament de Química AnalíticaUniversitat de València Dr. Moliner, 50 46100 Burjassot València Spain
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Scholz F, Doménech‐Carbó A. Die Thermodynamik von insertionselektrochemischen Elektroden – ein Mannschaftsspiel über zwei separate Grenzflächen. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201809631] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Fritz Scholz
- Universität GreifswaldInstitut für Biochemie Felix-Hausdorff-Straße 4 17487 Greifswald Deutschland
| | - Antonio Doménech‐Carbó
- Departament de Química AnalíticaUniversitat de València Dr. Moliner, 50 46100 Burjassot València Spanien
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Wani MA, Pandey MD, Pandey R, Maurya SK, Goswami D. A Dual-Signaling Ferrocene-Pyrene Dyad: Triple-Mode Recognition of the Cu(II) Ions in Aqueous Medium. J Fluoresc 2017; 27:2279-2286. [PMID: 28840438 DOI: 10.1007/s10895-017-2169-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2017] [Accepted: 08/10/2017] [Indexed: 11/29/2022]
Abstract
We report a structure of ferrocene-pyrene conjugate (1) comprising electro and photo-active dual-signaling units. In particular, 1 upon interaction with Cu(II), displays selectively one-photon fluorescence quenching, but it shows two-photon absorption (TPA) cross-section 1230 GM (at 780 nm). Further, 1 displayed two irreversible oxidative waves at 0.39 V and 0.80 V (vs Ag/AgCl), in the electrochemical analysis which upon addition of Cu2+, led to the negative potential shift in both the oxidative waves to appear at 0.25 V and 0.68 V. The triple mode changes in presence of Cu(II) suggesting the possible application of 1 for the detection of Cu(II) in aqueous media. Graphical Abstract.
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Affiliation(s)
- Manzoor Ahmad Wani
- Department of Chemistry, Dr. H. S. Gour Central University, Sagar, 470003, India
| | - Mrituanjay D Pandey
- Department of Chemistry, Dr. H. S. Gour Central University, Sagar, 470003, India.
| | - Rampal Pandey
- Department of Chemistry, Dr. H. S. Gour Central University, Sagar, 470003, India.
| | - Sandeep Kumar Maurya
- Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur, 208016, India
| | - Debabrata Goswami
- Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur, 208016, India.
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