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Chen Y, Wang H, Zhou J, Lin D, Zhang L, Xing Z, Zhang Q, Xia L. Sensitive SERS assay for L-cysteine based on functionalized silver nanoparticles. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2024; 318:124487. [PMID: 38805989 DOI: 10.1016/j.saa.2024.124487] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/19/2024] [Revised: 04/26/2024] [Accepted: 05/19/2024] [Indexed: 05/30/2024]
Abstract
L-cysteine, an indispensable amino acid present in natural proteins, plays pivotal roles in various biological processes. Consequently, precise and selective monitoring of its concentrations is imperative. Herein, we propose a Surface-enhanced Raman Scattering (SERS) sensor for detecting L-cysteine based on the anti-aggregation of 4-mercaptobenzoic acid (4-MBA) and histidine (His) functionalized silver nanoparticles (Ag NPs). The presence of Hg2+ ions can induce the aggregation of Ag NPs@His@4-MBA due to the unique nanostructures of Ag NPs@His@4-MBA, resulting in a robust SERS intensity of 4-MBA. However, in the presence of L-cysteine, the stronger affinity between L-cysteine and Hg2+ reduces the concentration of free Hg2+, causing the dispersion of the aggregated functionalized Ag NPs and the reduction of the SERS signal intensity of 4-MBA. The developed SERS platform demonstrates excellent performance with a low detection limit of 5 nM (S/N = 3) and linear detection capabilities within the range of 0.01-100 μM for L-cysteine. Additionally, the method was successfully employed for the determination of L-cysteine in spiked serum samples, yielding recoveries ranging from 95.0 % to 108.1 % with relative standard deviations of less than 3.3 %. This study not only presents a novel approach for fabricating highly sensitive and specific SERS biosensors for biomolecule detection but also offers a significant strategy for the development and construction of SERS substrates using anti-aggregation design.
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Affiliation(s)
- Yaxian Chen
- College of Chemistry, Liaoning University, Shenyang 110036, China
| | - Huiting Wang
- College of Chemistry, Liaoning University, Shenyang 110036, China
| | - Jie Zhou
- College of Chemistry, Liaoning University, Shenyang 110036, China
| | - Dongxue Lin
- College of Chemistry, Liaoning University, Shenyang 110036, China
| | - Ling Zhang
- College of Chemistry and Chemical Engineering, Shenyang Normal University, Shenyang 110034, China
| | - Zhiqiang Xing
- College of Chemistry, Liaoning University, Shenyang 110036, China
| | - Qian Zhang
- College of Chemistry, Liaoning University, Shenyang 110036, China.
| | - Lixin Xia
- College of Chemistry, Liaoning University, Shenyang 110036, China; Yingkou Institute of Technology, Yingkou 115014, China.
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Rom T, Agrawal A, Biswas R, Haldar KK, Paul AK. Superior Electrochemical Water Splitting and Energy-Storage Performances of In Situ Fabricated Charge-Separated Metal Organophosphonate Single Crystals. ACS APPLIED MATERIALS & INTERFACES 2024; 16:17797-17811. [PMID: 38552198 DOI: 10.1021/acsami.3c19079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2024]
Abstract
The design and exploration of advanced materials as a durable multifunctional electrocatalyst toward sustainable energy generation and storage development is the most perdurable challenge in the domain of renewable energy research. Herein, a facile in situ solvothermal approach has been adopted to prepare a methylviologen-regulated crystalline metal phosphonate compound, [C12H14N2][Ni(C11H11N2)(H2hedp)2]2•6H2O (NIT1), (H4hedp = 1-hydroxyethane 1,1-diphosphonic acid) and well characterized by several techniques. The as-prepared NIT1 displays excellent bifunctional electrocatalytic activity with dynamic stability toward oxygen evolution reaction (η10 = 288 mV) and hydrogen evolution reaction (η10 = 228 mV) in alkaline (1.0 M KOH) and acidic mediums (0.5 M H2SO4), respectively. Such a low overpotential and Tafel slope (68 mV/dec for OER; 56 mV/dec for HER) along with long-term durability up to 20 h of NIT1 make it superior to benchmark the electrocatalyst and various nonprecious metal-based catalysts under similar experimental condition. Further, the electrochemical supercapacitor measurements (in three-electrode system) reveal that the NIT1 electrode possesses much higher specific capacity of 187.6 C g-1 at a current density of 2 A g-1 (272 C g-1 at 5 mV s-1) with capacitance retention of 75.2% over 10,000 cycles at 14 A g-1 (Coulombic efficiency > 99%) in 6 M KOH electrolyte medium. Finally for a practical application, an asymmetric supercapacitor device (coin cell) is assembled by NIT1 material. The as-fabricated device delivers the maximum energy density of 39.4 Wh kg-1 at a power density of 450 W kg-1 and achieves a wide voltage window of 1.80 V. Notably, the device endures a remarkable cycle performance with cyclic retention of 92% (Coulombic efficiency > 99%) even after 14,000 charge/discharge cycles at 10 A g-1. Nevertheless, the extraordinary electrochemical activities toward OER and HER as well as the high-performance device fabrication for LED illumination of such a noble metal-free lower-dimensional charge-transfer compound are truly path breaking and would be promising for the development of advanced multifunctional materials.
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Affiliation(s)
- Tanmay Rom
- Department of Chemistry, National Institute of Technology, Kurukshetra136119, India
- Chemistry and Physics of Materials Unit, School of Advanced Materials (SAMat), Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Jakkur, Bengaluru 560064, Karnataka, India
| | - Anant Agrawal
- Department of Physics, National Institute of Technology, Kurukshetra 136119, India
| | - Rathindranath Biswas
- Department of Chemistry, School of Basic Science, Central University of Punjab, Bathinda 151401, India
| | - Krishna Kanta Haldar
- Department of Chemistry, School of Basic Science, Central University of Punjab, Bathinda 151401, India
| | - Avijit Kumar Paul
- Department of Chemistry, National Institute of Technology, Kurukshetra136119, India
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Poojita, Rom T, Biswas R, Haldar KK, Paul AK. Intrinsic Specific Activity Enhancement for Bifunctional Electrocatalytic Activity toward Oxygen and Hydrogen Evolution Reactions via Structural Modification of Nickel Organophosphonates. Inorg Chem 2024; 63:3795-3806. [PMID: 38335251 DOI: 10.1021/acs.inorgchem.3c03960] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/12/2024]
Abstract
A comprehensive knowledge of the structure-activity relationship of the framework material is decisive to develop efficient multifunctional electrocatalysts. In this regard, two different metal organophosphonate compounds, [Ni(Hhedp)2]·4H2O (I) and [Ni3(H3hedp)2(C4H4N2)3]·6H2O (II) have been isolated through one-pot hydrothermal strategy by using H4hedp (1-hydroxyethane 1,1-diphosphonic acid) and N-donor auxiliary ligand (pyrazine; C4H4N2). The structures of synthesized materials have been established through single-crystal X-ray diffraction studies, which confirm that compound I formed a one-dimensional molecular chain structure, while compound II exhibited a three-dimensional extended structure. Further, the crystalline materials have participated as efficient electrocatalysts for the oxygen evolution and hydrogen evolution reactions (OER and HER) as compared to the state-of-the-art electrocatalyst RuO2. The electrocatalytic OER and HER performances show that compound II displayed better electrocatalytic performances toward OER (η10 = 305 mV) and HER (η10 = 230 mV) in alkaline (1 M KOH) and acidic (0.5 M H2SO4) media, respectively. Substantially, the specific activity has been assessed in order to measure the inherent electrocatalytic activity of the title electrocatalyst, which displays an enrichment of fourfold higher activity of compound II (0.64 mA/cm2) than compound I (0.16 mA/cm2) for the OER experiments. Remarkably, inclusion of an auxiliary pyrazine ligand into the metal organophosphonate structure (compound II) not only offers higher dimensionality along with significant enhancement of the overall bifunctional electrocatalytic performances but also improves the long-term stability, which is noteworthy for the family of hybrid framework materials.
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Affiliation(s)
- Poojita
- Department of Chemistry, National Institute of Technology Kurukshetra, Kurukshetra 136119, Haryana, India
| | - Tanmay Rom
- Department of Chemistry, National Institute of Technology Kurukshetra, Kurukshetra 136119, Haryana, India
- Chemistry and Physics of Materials Unit, School of Advanced Materials (SAMat), Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Jakkur, Bengaluru 560064, Karnataka, India
| | - Rathindranath Biswas
- Department of Chemistry, School of Basic Science, Central University of Punjab, Bathinda 151401, Punjab, India
| | - Krishna Kanta Haldar
- Department of Chemistry, School of Basic Science, Central University of Punjab, Bathinda 151401, Punjab, India
| | - Avijit Kumar Paul
- Department of Chemistry, National Institute of Technology Kurukshetra, Kurukshetra 136119, Haryana, India
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Seal N, Mondal PP, Palakkal AS, Pillai RS, Neogi S. Site-Memory-Triggered Reversible Acronym Encryption in a Nitrogen-Rich Pore-Partitioned MOF for Ultrasensitive Monitoring of Roxarsone and Dichloran over Multiple Platform. ACS APPLIED MATERIALS & INTERFACES 2023; 15:54397-54408. [PMID: 37965697 DOI: 10.1021/acsami.3c11197] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2023]
Abstract
Stimuli-responsive emission color modulation in fluorescent metal-organic frameworks (MOFs) promises luminescence-ink-based security application, while task-specific functionality-engineered pores can aid fast-responsive, discriminative, and ultralow detection of harmful organo-aromatics in the aqueous phase. Considering practical applicability, a self-calibrated fluoro-switch between encrypted and decrypted states is best suited for antiforgery measures, whereas image-based monitoring of organo-toxins by repetitive and handy methods over multiple platforms endorses in-field sensory potential. Herein, we constructed a mixed-ligand based chemically stable and bilayered-pillar MOF from -NH2-hooked pyridyl linker and tricarboxylate ligand that embraces negatively charged [Cd3(μ2-OH)(COO)6] node and shows pore-space-partitioning by nitrogen-rich flanked organic struts. Owing to the presence of a self-calibrating triazolylamine moiety-grafted auxiliary linker, this anionic MOF delineates reversible and multicyclic fluoro-swapping between protonated-encrypted and deprotonated-decrypted domains in the alternative presence of acid and base. Such pH-triggered, site-specific luminescence variation is utilized to construct highly regenerative anticounterfeiting labels for vivid acronym encryption. The intense fluorescence signature of the material is further harnessed in extremely selective and quick responsive sensing of harmful feed additive roxarsone (ROX) and dichloran (DCNA) pesticide in highly recyclable fashion with significant quenching and nanomolar limits of detection (ROX: 52 ppb; DCNA: 26.8 ppb). Notably, the ultrasensitive fluoro-detection of both these organo-toxins is successfully demonstrated via a handy paper-strip method as well as on the vegetable surface for real-time monitoring. Comprehensive density functional theory studies validate the electron transfer mechanism through redistribution of molecular orbital energy levels by each of the targeted analytes in this electron-rich framework besides evidencing MOF-analyte supramolecular interactions.
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Affiliation(s)
- Nilanjan Seal
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
- Inorganic Materials & Catalysis Division, CSIR-Central Salt & Marine Chemicals Research Institute (CSMCRI), Bhavnagar, Gujarat 364002, India
| | - Partha Pratim Mondal
- Inorganic Materials & Catalysis Division, CSIR-Central Salt & Marine Chemicals Research Institute (CSMCRI), Bhavnagar, Gujarat 364002, India
| | - Athulya S Palakkal
- Department of Chemistry, School of Basic Sciences, SRM Institute of Science and Technology, Kattankulathur, Chennai 603203, India
| | - Renjith S Pillai
- Analytical and Spectroscopy Division, ASCG/PCM, Vikram Sarabhai Space Centre, Indian Space Research Organization, Thiruvananthapuram, Kerala 695022, India
| | - Subhadip Neogi
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
- Inorganic Materials & Catalysis Division, CSIR-Central Salt & Marine Chemicals Research Institute (CSMCRI), Bhavnagar, Gujarat 364002, India
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Ma T, Huang H, Liu Y, Peng Y. Theoretical investigation on a simple turn on fluorescent probe for detection of biothiols based on coumarin unit. Front Chem 2023; 11:1290745. [PMID: 38025079 PMCID: PMC10663294 DOI: 10.3389/fchem.2023.1290745] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2023] [Accepted: 10/16/2023] [Indexed: 12/01/2023] Open
Abstract
The discovery of a simple and efficient detection method for biothiols would be scientifically significant due to the crucial role of them in various physiological processes. Recently, a simple fluorescent probe, DEMCA-NBSC, based on coumarin fragments, was developed by Ding et al., and provided an efficient way for real-time sensing of biothiols both in vivo and vitro. Theoretical insights to the fluorescence sensing mechanism of the probe were provided in this work. Details of the electron transfer process in the probe under optical excitation and the fluorescent character of the probe were analyzed using a quantum mechanical method. All these theoretical results could inspire the development of a highly convenient and efficient fluorescent probe to sense biothiols both in vivo and vitro.
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Affiliation(s)
- Tianhao Ma
- Affiliated 3rd Hospital, Jinzhou Medical University, Jinzhou, China
| | - He Huang
- College of Bio-Informational Engineering, Jinzhou Medical University, Jinzhou, China
| | - Yuling Liu
- College of Bio-Informational Engineering, Jinzhou Medical University, Jinzhou, China
| | - Yongjin Peng
- College of Bio-Informational Engineering, Jinzhou Medical University, Jinzhou, China
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Seal N, Palakkal AS, Pillai RS, Neogi S. Coordination Unsaturation and Basic Site-Immobilized Nanochannel in a Chemorobust MOF for 3-Fold-Increased High-Temperature Selectivity and Fixation of CO 2 under Mild Conditions with Nanomolar Recognition of Roxarsone. Inorg Chem 2023; 62:11528-11540. [PMID: 37440273 DOI: 10.1021/acs.inorgchem.3c01160] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/14/2023]
Abstract
A multifaceted metal-organic framework (MOF) with task-specific site-engineered pores can promise high-temperature and moisture-tolerant capture and non-redox fixation of CO2 under mild conditions as well as ultrasensitive detection of carcinogenic contaminants in water. Herein, we report a pillar-bilayered MOF that holds a nanochannel with contrasting functionalities for both these sustainable applications with improved performance characteristics. The twofold entangled robust framework exhibits CO2 adsorption at elevated temperatures with considerable MOF-gas interaction. Interestingly, CO2 selectivity unveils nearly a 3-fold improvement upon the rise of temperature, affording a CO2/N2 value of 820 at 313 K, which outperforms many porous adsorbents. Additionally, breakthrough simulation establishes complete separation and attests the potential of this MOF in the separation of flue gas mixture. Importantly, minor CO2 loss during multiple capture-release cycles and under a relative humidity of 75% promise practical usability of the material. Density functional theory (DFT) not only portrays the atomistic level snapshots of temperature-triggered CO2 inclusion inside this microporous vessel alongside the role of diverse CO2-philic sites but also validates the basis of N2-phobicity of an azo-functionalized linker on such increased selectivity. The guest-free MOF further demonstrates non-redox and recyclable CO2 fixation with wide epoxide tolerance under solvent-free mild conditions and even works at atmospheric pressure and room temperature. The crucial roles of high-density acid-base sites in both adsorption and catalysis are supported by control experiments and by comparing the activity of an unfunctionalized MOF. The hydrolytic stability and strong luminescence signature benefit the framework in aqueous-phase selective and fast responsive detection of detrimental roxarsone (ROX) with high quenching (7.56 × 104 M-1) and very low sensitivity (68 nM). Apart from varying degrees of an energy-transfer mechanism, the fluorosensing of ROX is comprehensively supported by in-depth DFT studies that manifest alteration of MOF energy levels in the presence of organoarsenic compounds and depict MOF-analyte supramolecular interactions.
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Affiliation(s)
- Nilanjan Seal
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
- Inorganic Materials & Catalysis Division, CSIR-Central Salt & Marine Chemicals Research Institute (CSMCRI), Bhavnagar, Gujarat 364002, India
| | - Athulya S Palakkal
- Department of Chemistry, School of Basic Sciences, SRM Institute of Science and Technology, Kattankulathur, Chennai 603 203, India
| | - Renjith S Pillai
- Analytical and Spectroscopy Division, ASCG/PCM, Indian Space Research Organization, Vikram Sarabhai Space Centre, Thiruvananthapuram 695 022 Kerala, India
| | - Subhadip Neogi
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
- Inorganic Materials & Catalysis Division, CSIR-Central Salt & Marine Chemicals Research Institute (CSMCRI), Bhavnagar, Gujarat 364002, India
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Singh M, Neogi S. Largely Entangled Diamondoid Framework with High-Density Urea and Divergent Metal Nodes for Selective Scavenging of CO 2 and Molecular Dimension-Mediated Size-Exclusive H-Bond Donor Catalysis. Inorg Chem 2023; 62:871-884. [PMID: 36580539 DOI: 10.1021/acs.inorgchem.2c03684] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Pore environment modulation with high-density polarizing groups in metal-organic frameworks (MOFs) can effectively accomplish selective and multicyclic carbon dioxide (CO2) adsorption, whereas the incorporation of task-specific organic sites inside these porous vessels promise to evade self-quenching, solubility, and recyclability issues in hydrogen-bond donating (HBD) catalysis. However, concurrent amalgamation of both these attributes over a single platform is rare but extremely demanding in view of sustainable applications. We designed a robust diamondoid framework CSMCRI-17 (CSMCRI = Central Salt and Marine Chemicals Research Institute) from the mixed-ligand assembly of azo group-containing dicarboxylate ligand, urea-functionalized pyridyl linker, and Zn(II) nodes with specific divergent coordination. Seven-fold interpenetration to the microporous structure largely augments N-rich functionality that facilitates high CO2 uptake in the activated form (17a) with good CO2 selectivity over N2 and CH4 that outperform many reported materials. The framework displays very strong CO2 affinity and no reduction in adsorption capacity over multiple uptake-release cycles. Benefitting from the pore-wall decoration with urea functionality from the pillaring strut, 17a further demonstrates hydrogen-bond-mediated Friedel-Crafts alkylation of indole with β-nitrostyrene under mild conditions, with multicyclic usability and excellent reactivity toward wide ranges of substituted nucleophiles and electrophiles. Interestingly, interpenetration-generated optimum-sized pores induce poor conversion to sterically encumbered substrate via molecular dimension-mediated size selectivity that is alternatively ascribed from additional control experiments and support the occurrence of HBD reaction within the MOF cavity. The catalytic path is detailed in light of the change of emission intensity of the framework by the electrophile as well as the judicious choice of the substrate, which authenticates the prime role of urea moiety-governed two-point hydrogen bonding.
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Affiliation(s)
- Manpreet Singh
- Inorganic Materials & Catalysis Division, CSIR-Central Salt and Marine Chemicals Research Institute (CSIR-CSMCRI), Bhavnagar, Gujarat 364002, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad-201002, India
| | - Subhadip Neogi
- Inorganic Materials & Catalysis Division, CSIR-Central Salt and Marine Chemicals Research Institute (CSIR-CSMCRI), Bhavnagar, Gujarat 364002, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad-201002, India
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