Pub Date : 2024-09-15DOI: 10.1007/s10904-024-03403-x
Yu-Shuo Li, Xin-Yuan Wang, Fang-Hua Zhao, Zhong-Lin Li
Rational design of metal-organic frameworks (MOFs) as luminescent sensors, has attracted great interest in recent years. 2,6-dipicolinic acid (DPA) is the specific biomarker of Bacillus anthracis, Cr(VI) oxo-anions are toxic ions in environmental water, and the detection of DPA and Cr(VI) oxo-anions is of great significance. Herein, a new three-dimensional (3D) Cd(II) MOF, {[Cd2(bpda)(1,4-bbix)0.5(H2O)4]·H2O}n (1) (H4bpda = 2,3,3′,4′-biphenyltetracarboxylic acid, 1,4-bbix = 1,4-bis(benzimidazol-1-yl-methyl)benzene) has been synthesized and characterized. Its crystal structure is a 3D framework, which presents a trinodal (3,3,5)-connected topology with the point symbol of (42·6)(62·8)(42·62·84·102). 1 shows excellent luminescence and stability in water, which was explored as luminescent sensor for detection of DPA, CrO42- and Cr2O72- in aqueous solutions via luminescence quenching effect. The detection limits of 1 toward DPA, CrO42- and Cr2O72- are 0.90, 0.53 and 0.41 μM, respectively. Furthermore, 1 also can serve as luminescent sensor to detect DPA in serum and Cr(VI) oxo-anions in river water. The quenching mechanisms were studied by theoretical calculations, PXRD, UV-vis spectra and luminescent lifetimes. The luminescent film of 1 was prepared for the visual detection of DPA, CrO42- and Cr2O72-. This work presents an effective Cd(II) MOF as the functional platform for sensing of DPA, CrO42- and Cr2O72- in aqueous solution.
{"title":"Biphenyltetracarboxylate-Based Luminescent Metal-Orgainc Framework for Sensing of 2,6-Dipicolinic Acid and Cr(VI) Oxo-Anions","authors":"Yu-Shuo Li, Xin-Yuan Wang, Fang-Hua Zhao, Zhong-Lin Li","doi":"10.1007/s10904-024-03403-x","DOIUrl":"https://doi.org/10.1007/s10904-024-03403-x","url":null,"abstract":"<p>Rational design of metal-organic frameworks (MOFs) as luminescent sensors, has attracted great interest in recent years. 2,6-dipicolinic acid (DPA) is the specific biomarker of Bacillus anthracis, Cr(VI) oxo-anions are toxic ions in environmental water, and the detection of DPA and Cr(VI) oxo-anions is of great significance. Herein, a new three-dimensional (3D) Cd(II) MOF, {[Cd<sub>2</sub>(bpda)(1,4-bbix)<sub>0.5</sub>(H<sub>2</sub>O)<sub>4</sub>]·H<sub>2</sub>O}<sub>n</sub> (<b>1</b>) (H<sub>4</sub>bpda = 2,3,3′,4′-biphenyltetracarboxylic acid, 1,4-bbix = 1,4-bis(benzimidazol-1-yl-methyl)benzene) has been synthesized and characterized. Its crystal structure is a 3D framework, which presents a trinodal (3,3,5)-connected topology with the point symbol of (4<sup>2</sup>·6)(6<sup>2</sup>·8)(4<sup>2</sup>·6<sup>2</sup>·8<sup>4</sup>·10<sup>2</sup>). <b>1</b> shows excellent luminescence and stability in water, which was explored as luminescent sensor for detection of DPA, CrO<sub>4</sub><sup>2-</sup> and Cr<sub>2</sub>O<sub>7</sub><sup>2-</sup> in aqueous solutions via luminescence quenching effect. The detection limits of <b>1</b> toward DPA, CrO<sub>4</sub><sup>2-</sup> and Cr<sub>2</sub>O<sub>7</sub><sup>2-</sup> are 0.90, 0.53 and 0.41 <i>μ</i>M, respectively. Furthermore, <b>1</b> also can serve as luminescent sensor to detect DPA in serum and Cr(VI) oxo-anions in river water. The quenching mechanisms were studied by theoretical calculations, PXRD, UV-vis spectra and luminescent lifetimes. The luminescent film of <b>1</b> was prepared for the visual detection of DPA, CrO<sub>4</sub><sup>2-</sup> and Cr<sub>2</sub>O<sub>7</sub><sup>2-</sup>. This work presents an effective Cd(II) MOF as the functional platform for sensing of DPA, CrO<sub>4</sub><sup>2-</sup> and Cr<sub>2</sub>O<sub>7</sub><sup>2-</sup> in aqueous solution.</p>","PeriodicalId":639,"journal":{"name":"Journal of Inorganic and Organometallic Polymers and Materials","volume":"64 1","pages":""},"PeriodicalIF":4.0,"publicationDate":"2024-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142247333","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-09-14DOI: 10.1007/s10904-024-03384-x
Oman Zuas, Novita Ariani, Yenni Apriliany Devy, Toto Sudiro
This paper presents a pioneering investigation of synthesizing Ag-NPs using Macassar Ebony seed (MES) extract. The bioactive metabolites in the MES extract were essential in reducing silver (Ag) ions, forming MES-Ag-NPs. The biosynthesized MES-Ag-NPs were characterized using several techniques, including UV–visible, DLS, XRD, FT-IR, and TEM. The MES-Ag-NPs have a zeta potential of − 33.9 mV, which defines their stability. The XRD diffractogram exhibited peaks at 2θ values of 38.07°, 44.27°, 64.62°, and 77.57°, which correspond to the (111), (200), (220), and (311) crystallographic planes of cubic Ag crystal, respectively. The TEM image revealed that the MES-Ag-NPs exhibited multi-shapes and had an average size of 48.76 nm. When used as catalysts to degrade methylene blue (MB), MES-Ag-NPs demonstrated a degradation efficiency of more than 80% in just 10 min. Besides, the MES-Ag-NPs had a ZOI of 10.83 ± 1.17 mm against Staphylococcus aureus and 10.67 ± 1.19 mm against Escherichia coli, which shows that they might be helpful as an antibacterial agent. The findings of this study shed light on the potential advantages that MES-based Ag-NPs may bring to the medical and environmental remediation fields.
{"title":"Biosynthesis and Characterization of Silver Nanoparticles Mediated by Seed Extract of Macassar Ebony with Catalytic and Antimicrobial Activity","authors":"Oman Zuas, Novita Ariani, Yenni Apriliany Devy, Toto Sudiro","doi":"10.1007/s10904-024-03384-x","DOIUrl":"https://doi.org/10.1007/s10904-024-03384-x","url":null,"abstract":"<p>This paper presents a pioneering investigation of synthesizing Ag-NPs using Macassar Ebony seed (MES) extract. The bioactive metabolites in the MES extract were essential in reducing silver (Ag) ions, forming MES-Ag-NPs. The biosynthesized MES-Ag-NPs were characterized using several techniques, including UV–visible, DLS, XRD, FT-IR, and TEM. The MES-Ag-NPs have a zeta potential of − 33.9 mV, which defines their stability. The XRD diffractogram exhibited peaks at 2θ values of 38.07°, 44.27°, 64.62°, and 77.57°, which correspond to the (111), (200), (220), and (311) crystallographic planes of cubic Ag crystal, respectively. The TEM image revealed that the MES-Ag-NPs exhibited multi-shapes and had an average size of 48.76 nm. When used as catalysts to degrade methylene blue (MB), MES-Ag-NPs demonstrated a degradation efficiency of more than 80% in just 10 min. Besides, the MES-Ag-NPs had a ZOI of 10.83 ± 1.17 mm against <i>Staphylococcus aureus</i> and 10.67 ± 1.19 mm against <i>Escherichia coli</i>, which shows that they might be helpful as an antibacterial agent. The findings of this study shed light on the potential advantages that MES-based Ag-NPs may bring to the medical and environmental remediation fields.</p>","PeriodicalId":639,"journal":{"name":"Journal of Inorganic and Organometallic Polymers and Materials","volume":"196 1","pages":""},"PeriodicalIF":4.0,"publicationDate":"2024-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142247363","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-09-13DOI: 10.1007/s10904-024-03351-6
Shalima Kumari, Maridula Thakur, Sachin Kumar
The main target of the current research is designing and synthesizing novel Co(II) complexes derived from 2-hydroxy-5,3-(phenylallylidene)aminobenzoic acid ligand and to enhance comprehension as potential photocatalyst, antibacterial, antifungal, and antioxidants alternatives by means of using density functional theory (DFT) calculations and molecular docking investigation. Thus, 2-hydroxy-5,3-(phenylallylidene)aminobenzoic acid (L1), was prepared by thermal condensation of cinnamaldehyde with 5-aminosalicylic acid in methanol. A series of cobalt(II) complexes with newly synthesized Schiff base ligand and para substituted phenylphenol (L2) corresponding to complex 1, [CoII(L1)2(H2O)4], and mixed-ligand complexes, 2 and 3, [CoII(L2)1/2(L1)(H2O)4/3], have been prepared and analysed by FTIR, 1H NMR, HRMS, PXRD, electrochemical and fluorescence spectral techniques. DFT calculations were utilized to verify the molecular structure, analysis of Frontier Molecular orbitals (FMOs), molecular electrostatic potential (MEP) and reactivity descriptor for complexes 1–3. In vitro experiments were conducted to evaluate the biological properties of the complexes. These findings revealed that the synthesized metal complexes have heightened biological efficacy as related to the unbound ligand. Complex 2 has been observed to show effective antibacterial MIC value against P. aeruginosa (3.81 μg/mL) which is superior to the efficacy of standard drug chloramphenicol used (7.81 μg/mL) while the antifungal activity of complexes was found to be moderate to that of standard nystatin. Complex 2 has also demonstrated strong antioxidant activity (67.7%), which was on par with ascorbic acid used as a reference. Furthermore, in silico antibacterial activities (molecular docking) of the complexes have indicated these to exhibit excellent efficacy with docking score of − 11.1, − 9.8 and − 9.4 KCalmol−1 against target proteins E. coli (PDB ID: 4OPQ), P. aeruginosa, (PDB ID: 6NE0) and S. aureus, (PDB ID: 3Q89), respectively. The photocatalytic behaviour of the Co(II) based complexes has been studied by Buchwald-Hartwig C–N (BHC) and Suzuki Miyura C–C (SMC) cross coupling reactions. Lastly, a correlation between in vitro efficacies with molecular docking data and photocatalytic activity with DFT data was done and analysed.