Light and temperature responsive block copolymer assemblies with tunable fluorescence emissions

Li, Dehua; Munyentwali, Alexis; Guang, Wang; Zhang, Meiduo; Xing, Shuangxi

doi:10.1016/j.dyepig.2015.02.009

Cited by 17 publications

(5 citation statements)

References 42 publications

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“…43 As for the coating of hydrophilic polymers, the same issue of surface compatibility exists as it also requires surface initiation. 44 With the aid of photoinduced polymerization of HMPP, this complication can be avoided for the coating of any type of polyelectrolyte, which is important for functional plasmonics. To show the advantage and application of this coating method, we further demonstrate the coating of pHresponsive polymers, poly(acrylic acid) (PAA).…”

Section: ■ Results and Discussionmentioning

confidence: 99%

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A General Nanocoating Method via Photoinduced Self-Initiation

Deng

Lü

et al. 2021

Langmuir

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Hybrid core–shell nanoparticles play a very significant role in many applications. Here, we report a light-induced oligomer coating on nanoparticles via Norrish type I reaction. The radical species generated via UV irradiation can chemically initiate the photoinitiators, which are then polymerized and deposited on inorganic nanoparticles via heterogeneous nucleation, forming a soft oligomer coating smaller than 40 nm. This coating method is versatile and potentially applicable to many different types of inorganic cores and their assemblies, making it a very useful technique for “freezing” nanoassemblies in solution. Moreover, these oligomer coatings containing radical species can also initiate surface polymerization of both styrenic and acrylic monomers with certain functionalities for different applications such as self-assembly, plasmon tuning, and pH sensing (3.5–4.5).

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Section: ■ Results and Discussionmentioning

confidence: 99%

“…As for the coating of hydrophilic polymers, the same issue of surface compatibility exists as it also requires surface initiation . With the aid of photoinduced polymerization of HMPP, this complication can be avoided for the coating of any type of polyelectrolyte, which is important for functional plasmonics.…”

Section: Resultsmentioning

confidence: 99%

A General Nanocoating Method via Photoinduced Self-Initiation

Deng

Lü

et al. 2021

Langmuir

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“…This showed the current flow from sample electrode to counter electrode was enhanced which approved good compatibility of Hap with TiO2. To study dye regeneration mechanism, two types of iodide solutions were prepared as electrolytes (8)(9)(10). The first one was iodide with deionized water (DW) and the second was with artificial water (ASW).…”

Section: Effect Of Ru Sensitizing On Photopotential Characteristicsmentioning

confidence: 99%

Photopotential and Polarization Characteristics of Ruthenizer Complex Sensitized TiO₂Electrode for Marine Microbial Fuel Cell

2017

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We have been investigating a marine microbial fuel cell (MFC) with TiO2 anode and biofilm cathode. In this study, dye-sensitizing on TiO2 electrode was studied and photopotential and polarization characteristics of those electrodes were analysed. Hydroxylapatite (Hap) was also used for a bonding agent between TiO2 film and Ruthenizer (dye) particles. We found out that the photocatalytic effect of TiO2 electrodes was suppressed by Ru if the electrolyte was insufficient to perform sustainable redox reaction, and hence dye regeneration. We also found out that the Hap was compatible with TiO2 film, and the optimal photocatalytic efficiency of TiO2 was achieved when the quality of electrolyte matched with the requirement for dye-sensitizing.

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“…The benzimidazole moiety as fluorescent material with high fluorescence quantum yield has been used in optical devices and fluorescent chemosensors . However, the reported fluorescence chemosensors with benzimidazole as emitting moiety are not so abundant, therefore development of new benzimidazole‐based fluorescent chemosensors to detect Cu 2+ is still noteworthy.…”

Section: Introductionmentioning

confidence: 99%

A new benzimidazole‐based selective and sensitive ‘on–off’ fluorescence chemosensor for Cu²⁺ ions and application in cellular bioimaging

Wei

Zhang

et al. 2019

Luminescence

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Two new twinborn benzimidazole derivates (L and A), which bonded pyridine via the ester space on the opposite and adjacent positions of the benzene ring of benzimidazole respectively, were designed and synthesized. Compound L displayed fluorescence quenching response only towards copper(II) ions (Cu 2+ ) in acetonitrile solution with high selectivity and sensitivity. However, compound A presented 'on-off' fluorescence response towards a wide range of metal ions to different degrees and did not have selectivity. Furthermore, compound L formed a 1:1 complex with Cu 2+ and the binding constant between sensor L and Cu 2+ was high at 6.02 × 10 4 M −1 . Job's plot, mass spectra, IR spectra, 1 H-NMR titration and density functional theory (DFT) calculations demonstrated the formation of a 1:1 complex between L and Cu 2+ . Chemosensor L displayed a low limit of detection (3.05 × 10 −6 M) and fast response time (15 s) to Cu 2+ . The Stern-Volmer analysis illustrated that the fluorescence quenching agreed with the static quenching mode. In addition, the obvious difference of L within HepG2 cells in the presence and absence of Cu 2+ indicated L had the recognition capability for Cu 2+ in living cells.

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Light and temperature responsive block copolymer assemblies with tunable fluorescence emissions

Cited by 17 publications

References 42 publications

A General Nanocoating Method via Photoinduced Self-Initiation

A General Nanocoating Method via Photoinduced Self-Initiation

Photopotential and Polarization Characteristics of Ruthenizer Complex Sensitized TiO₂Electrode for Marine Microbial Fuel Cell

A new benzimidazole‐based selective and sensitive ‘on–off’ fluorescence chemosensor for Cu²⁺ ions and application in cellular bioimaging

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Light and temperature responsive block copolymer assemblies with tunable fluorescence emissions

Cited by 17 publications

References 42 publications

A General Nanocoating Method via Photoinduced Self-Initiation

A General Nanocoating Method via Photoinduced Self-Initiation

Photopotential and Polarization Characteristics of Ruthenizer Complex Sensitized TiO2Electrode for Marine Microbial Fuel Cell

A new benzimidazole‐based selective and sensitive ‘on–off’ fluorescence chemosensor for Cu2+ ions and application in cellular bioimaging

Contact Info

Product

Resources

About

Photopotential and Polarization Characteristics of Ruthenizer Complex Sensitized TiO₂Electrode for Marine Microbial Fuel Cell

A new benzimidazole‐based selective and sensitive ‘on–off’ fluorescence chemosensor for Cu²⁺ ions and application in cellular bioimaging