Optical biosensing using newly synthesized metal salphen complexes: A potential DNA diagnostic tool

Mazlan, Nur-Fadhilah; Tan, Ling Ling; Karim, Nurul Huda Abd; Heng, Lee Yook; Reza, Mohammad Imam Hasan

doi:10.1016/j.snb.2016.11.032

Cited by 29 publications

(15 citation statements)

References 73 publications

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“…As shown in Figure b, the MALDI-TOF MS spectra show a strong peak of [M + Na] + at 436.02, 435.99, and 460.04 for Cu-SP-3F, Cu-SP-5F and Cu-SP-3OMe, respectively, matching well with their molecular weights. The FTIR spectra in Figure c show the appearance of aromatic azomethine (HCN) stretching band at approximately 1610 cm –1 in all the molecules, further confirming the Schiff base complex formation . The peak at around 1240 cm –1 for all samples can be assigned to the C–O stretching .…”

Section: Results and Discussionmentioning

confidence: 58%

“…The FTIR spectra in Figure 2c show the appearance of aromatic azomethine (HC�N) stretching band at approximately 1610 cm −1 in all the molecules, further confirming the Schiff base complex formation. 33 The peak at around 1240 cm −1 for all samples can be assigned to the C−O stretching. 34 In addition, the field emission scanning electron microscopy (FESEM) images reveal that all the catalyst materials own a similar micrometer-scale rod-like morphology (Figures S1a−c).…”

Section: Resultsmentioning

confidence: 90%

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Enhanced Electrocatalytic CO₂ Conversion to CH₄ via Molecular Engineering on Copper Salphen Complexes

et al. 2022

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Electrocatalytic reduction reaction of CO2 (CO2RR) enables a new paradigm toward carbon neutrality. Metal molecular complexes with well-defined active centers and easily tailorable structures are promising electrocatalysts for CO2RR. In this regard, copper salphen-based complexes are studied as electrocatalysts for CO2RR for the first time. The computational finding reveals that the optimized electronic structure of Cu active center is the key for good CO2RR performance, which is consistent with the experimental results. The optimized fluorine substituted in the 3,3′-position of copper salphen shows nearly 2-fold CO2 electrolytic activity and a much higher Faradaic efficiency of 62 ± 2% for CH4 production, compared with the commercial copper phthalocyanine. These results provide significant insights upon the rational design of metal complex catalysts through the regulation at molecular level toward efficient CO2 electrolysis.

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Section: Results and Discussionmentioning

confidence: 58%

Section: Resultsmentioning

confidence: 90%

Enhanced Electrocatalytic CO₂ Conversion to CH₄ via Molecular Engineering on Copper Salphen Complexes

et al. 2022

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“…e developments in transition metal complexes have gained considerable attention about various structures and potential applications in catalysis, analysis, advanced materials science, and biochemistry especially [1][2][3][4][5][6][7][8][9]. Besides the meaningful efficiency of platinum complexes as anticancer agents [10][11][12], recent bioinorganic chemists have focused on the design and preparation of new transition metal complexes with Schiff base ligands [13][14][15].…”

Section: Introductionmentioning

confidence: 99%

Synthesis, Spectral Characterization, and In Vitro Cytotoxicity of Some Fe(III) Complexes Bearing Unsymmetrical Salen-Type Ligands Derived from 2-Hydroxynaphthaldehyde and Substituted Salicylaldehydes

Nguyen

Thi

Tuyen

2021

Journal of Chemistry

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Six Fe(III) complexes bearing unsymmetrical salen-type ligands derived from 2-hydroxynaphthaldehyde and substituted salicylaldehydes were synthesized by coordinating the unsymmetrical salen-type ligands with FeCl3.6H2O. The synthetic complexes were characterized by electrospray ionization mass spectra (ESI-MS), effective magnetic moments (μeff), and infrared (IR) and ultraviolet-visible (UV-Vis) spectra. The spectroscopic data are in good agreement with the suggested molecular formulae of the complexes. Their cyclic voltammetric studies in acetonitrile solutions showed that the Fe(III)/Fe(II) reduction processes are electrochemically irreversible. The in vitro cytotoxicity of the obtained complexes was screened on human cancer cell lines KB (a subline of Hela tumor cell line) and HepG2 (a human liver cancer cell line) and a normal human cell line HEK-293 (Human Embryonic Kidney cell line). The results showed that the synthetic Fe(III) complexes are highly cytotoxic and quite selective. The synthetic complexes bearing unsymmetrical salen-type ligands with different substituted groups in the salicyl ring indicate different cytotoxicity.

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“…eir coordination with transition metals generated a great deal of relatively stable transition metal complexes which have showed interesting properties used in chemical catalysis [2][3][4], analysis [5][6][7], and advanced materials [8][9][10].…”

Section: Introductionmentioning

confidence: 99%

Synthesis, Characterization, and In Vitro Cytotoxicity of Platinum(II) Complexes Bearing Chiral Tetradentate Salicylaldimine Ligands

Nguyen

Thi

Nguyen

2020

Journal of Chemistry

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A series of platinum(II) complexes with chiral Schiff base ligands derived from various salicylaldehydes with (R,R′)- and (S,S′)-cyclohexanediamine were synthesized and characterized by ESI-MS, IR, and NMR. Obtained spectra with typical signals were in agreement with suggested molecular formulae of the complexes. Their photophysical properties were studied by UV-visible and emission spectroscopies. The UV-Vis showed the typical band with low energy at visible range 400–500 nm for MLCT, and this band can emit the luminescent band with emission maximum wavelengths at 529–595 nm. The in vitro cytotoxicity of obtained platinum(II) complexes was screened for KB and MCF-7 human cancer cell lines. The results showed that (S)-enantiomers were more active than (R)-enantiomers and the different positions of methoxy group in salicyl ring gave different cytotoxicities.

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Optical biosensing using newly synthesized metal salphen complexes: A potential DNA diagnostic tool

Cited by 29 publications

References 73 publications

Enhanced Electrocatalytic CO₂ Conversion to CH₄ via Molecular Engineering on Copper Salphen Complexes

Enhanced Electrocatalytic CO₂ Conversion to CH₄ via Molecular Engineering on Copper Salphen Complexes

Synthesis, Spectral Characterization, and In Vitro Cytotoxicity of Some Fe(III) Complexes Bearing Unsymmetrical Salen-Type Ligands Derived from 2-Hydroxynaphthaldehyde and Substituted Salicylaldehydes

Synthesis, Characterization, and In Vitro Cytotoxicity of Platinum(II) Complexes Bearing Chiral Tetradentate Salicylaldimine Ligands

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Optical biosensing using newly synthesized metal salphen complexes: A potential DNA diagnostic tool

Cited by 29 publications

References 73 publications

Enhanced Electrocatalytic CO2 Conversion to CH4 via Molecular Engineering on Copper Salphen Complexes

Enhanced Electrocatalytic CO2 Conversion to CH4 via Molecular Engineering on Copper Salphen Complexes

Synthesis, Spectral Characterization, and In Vitro Cytotoxicity of Some Fe(III) Complexes Bearing Unsymmetrical Salen-Type Ligands Derived from 2-Hydroxynaphthaldehyde and Substituted Salicylaldehydes

Synthesis, Characterization, and In Vitro Cytotoxicity of Platinum(II) Complexes Bearing Chiral Tetradentate Salicylaldimine Ligands

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Enhanced Electrocatalytic CO₂ Conversion to CH₄ via Molecular Engineering on Copper Salphen Complexes

Enhanced Electrocatalytic CO₂ Conversion to CH₄ via Molecular Engineering on Copper Salphen Complexes