Novel 1,8-naphthalimide dye for multichannel sensing of H+ and Cu2+

Chen, Yu-Fen; Tang, Tengxuan; Chen, Yuhua; Xu, Duanyang

doi:10.1007/s11164-017-3235-6

Cited by 14 publications

(9 citation statements)

References 35 publications

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“…E-mail: lgchen@tju.edu.cn synthesis and has been intensively studied. [8][9][10][11] Chen reported that 11 some by-products, including amino-nitriles, diimines and homopiperazines could be detected during the catalytic hydrogenation. The reaction temperature and the pressure of hydrogen played a critical role in the formation of these by-products.…”

Section: Resultsmentioning

confidence: 99%

An Efficient Synthesis of N,N,N’,N’,N″-Pentamethyldipropylenetriamine

Gui

Luo

et al. 2016

Journal of Chemical Research

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Estimation method of mixing ratio of materials in processed foods by amino acid patterns were invented by Tamura (the traditional way). It shows the ratio of buckwheat protein in dried buckwheat noodles as follows : (A) is the ratio of buckwheat protein. and are the amounts of amino acids of buckwheat, flour, and a sample, respectively. The summation of and is standardized to. In short, the equation (A) is not estimating the mixing ratio of buckwheat as weight ratio in dried buckwheat noodles, but gives "protein" ratio. We devised the estimation method of the mixing ratio of buckwheat as weight ratio (the improved way). The equation is as follows : (B) and are the average amounts of amino acids of buckwheat and flour. and are the amounts of the protein of buckwheat, flour, and a sample defined as and respectively. The equation (B) could estimate the mixing ratio of buckwheat as weight ratio, not protein ratio. Then, a lot of dried buckwheat noodles contain vital gluten. We devised the estimation method of the mixing ratio of buckwheat in such noodles (three materials system). The equations are as follows : (C) (D) (E) and are the mixing ratio of buckwheat and vital gluten, and is the average amount of amino acids of vital gluten. By this method, the mixing ratio of buckwheat was estimated within the standard deviation of .

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Section: Resultsmentioning

confidence: 99%

An Efficient Synthesis of N,N,N’,N’,N″-Pentamethyldipropylenetriamine

Gui

Luo

et al. 2016

Journal of Chemical Research

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“…Then samples were incubated at 37 °C for three hours using shaker incubator. In the next step, samples were based probes, ion sensors, cellular imaging, and DNA targeting [57][58][59][60][61][62]. In addition, recent reports have been shown that polycarbonate based urethanes have great blood compatibility [34][35][36][37].…”

Section: Biocompatibility Testsmentioning

confidence: 99%

Evaluation of the Mechanical Properties and Blood Compatibility of Polycarbonate Urethane and Fluorescent Self-Colored Polycarbonate Urethane as Polymeric Biomaterials

Zamani¹,

Yahyaei²

2020

Preprint

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<p>Fluorescent polymeric biomaterials have got significant attention due to their promising applications in biomedical fields such as labeling, monitoring, diagnostics, imaging and tracking. Polycarbonate urethane (PCU) and 1,8-naphthalimide based fluorescent dyes separately have been studied and shown great biocompatibility and physical properties. Therefore, in this work we have taken advantage of excellent fluorescence properties of naphthalimide dye and biocompatibility of PCU, and covalently attached the fluorescent dye to the PCU (self-colored PCU). Covalent attachment can increase the stability of the dye in the biomedical applications especially when biomaterials are in contact with blood and can inhibit the release of the dye to surrounding media. DMTA, AFM, and contact angle measurement were used to study the mechanical and morphological properties of the self-colored PCU and results showed that incorporation of the dye to the PCU did not change the mechanical and morphological properties of the PCU. In addition, MTT assay, hemolysis assay, PT and aPTT assays as well as protein adsorption assay was used to evaluate the blood compatibility of PCU and self-colored PCU and results indicated great bio and blood compatibility of these materials. These great mechanical and blood compatibility properties of the self-colored PCU as well as their excellent fluorescent properties suggested that, these materials could be an ideal candidates to be use in biomedical applications in which non-invasive and non-destructive fluorescent based techniques are required. </p>

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“…Also two different aliphatic triplets and a singlet having 2, 2 and 6 integration values clearly shows the presence of two -CH2-and N(CH3)2 groups, respectively. In the 13…”

Section: Synthesismentioning

confidence: 99%

“…Fluorescence-based pH probes have become promising tools due to their high sensitivity, selectivity, and low cost. In order to understand many physiological processes better, the development of effective chemosensors to monitor pH changes has a great deal of precaution (12)(13)(14)(15). For example, a proportional pH sensor based on fluorescence resonance energy transfer (FRET) has been recently reported to visualize the stimulus-sensitive changes in intracellular pH values by integrating an aminonaphthalimide pH probe as a FRET acceptor with a pH-insensitive coumarin fluorophore as a FRET donor (16).…”

Section: Introductionmentioning

confidence: 99%

Photophysics, pH Sensing and Hydrolysis Study of a Novel 1,8-Naphthalimide Derivative

Atahan

Orhan

2018

Journal of the Turkish Chemical Society Section A: Chemistry

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In this study, a novel highly emissive compound was synthesized via a two-step synthetic procedure and characterized by 1 H-NMR, 13 C-NMR and FTIR. Then its photophysical properties, pH sensing behaviors and pH-dependent hydrolysis were systematically investigated by ultraviolet and fluorescence spectroscopy. Photophysics studies were carried out in fourteen common organic solvents and absorption/emission spectra were recorded in Britton Robinson buffers (pH=3-12) to determine pH sensing behaviors. From the photophysical results, it has been shown that the novel compound exhibits strongly solvent polarity dependent emission and has high quantum yield (up to 0.72). Furthermore, at pH=12, absorbance started to decrease while emission was increasing and blue-shifting due to basic hydrolysis after a several minutes. Therefore, time dependent hydrolysis was also investigated at mentioned pH.

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Novel 1,8-naphthalimide dye for multichannel sensing of H+ and Cu2+

Cited by 14 publications

References 35 publications

An Efficient Synthesis of N,N,N’,N’,N″-Pentamethyldipropylenetriamine

An Efficient Synthesis of N,N,N’,N’,N″-Pentamethyldipropylenetriamine

Evaluation of the Mechanical Properties and Blood Compatibility of Polycarbonate Urethane and Fluorescent Self-Colored Polycarbonate Urethane as Polymeric Biomaterials

Photophysics, pH Sensing and Hydrolysis Study of a Novel 1,8-Naphthalimide Derivative

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