Photo-Detection of Solvent Polarities using Non-Invasive Coatings in Capillaries

Florea, Larisa; Benito‐Lopez, Fernando; Hennart, Alexandre; Diamond, Dermot

doi:10.1016/j.proeng.2011.12.382

Cited by 6 publications

(7 citation statements)

References 5 publications

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“…Spiropyrans [53][54][55] produced by a [4?2]-cycloaddition (Diels-Alder reaction) of a dienophile (electron-deficient alkene) and a conjugated diene, in most cases cyclopentadiene or furan. Alternatively, large and complex functionalities can be easily introduced by esterification or etherification reactions.…”

Section: Polymethine Dyesmentioning

confidence: 99%

“…A wide range of suitable monomers has been copolymerized comprising (hetero)polyaromatic compounds [15][16][17][18][19][20][21][22][23][24][25][26][27][28][29][30][31][32][33], and more sophisticated functionalities like conjugated oligomers [34][35][36][37][38][39], triphenylmethane [40][41][42][43][44][45][46][47], azo [48][49][50][51][52], or polymethine [53][54][55][56][57] dyes. Even transition metal coordination compounds of aluminum [58,59], iron [60], zinc [61][62][63], ruthenium [64, 65], europium …”

Section: Polymethine Dyesmentioning

confidence: 99%

“…The dipolar nature of the merocyanine zwitterions leads to them being favored in a polar environment whereas spiropyrans are the preferred form in an apolar environment. This was used as a probe for solvent polarity using capillaries equipped with polymer brushes prepared in a surface-initiated ROMP approach [55]. Recently, spiropyran-functionalized copolymers were used to control the charging properties from contact electrification in polymeric thin films [113].…”

Section: Photoreactive Materialsmentioning

confidence: 99%

“…Overall, a vast variety of photoreactive materials has been prepared via ROMP, owing not only to the high functional group tolerance of this polymerization technique [53][54][55]57] used for the light triggered encapsulation of Nile Red with spiropyranfunctionalized random ROMP copolymers. Reprinted (adapted) with permission from [57].…”

Section: Photoreactive Materialsmentioning

confidence: 99%

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Dye-functionalized polymers via ring opening metathesis polymerization: principal routes and applications

2015

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Herein, highlights from the recent literature regarding functional dye-polymer conjugates obtained by ring opening metathesis polymerization (ROMP) are presented and the different approaches to incorporate dyes during the initiation, propagation, and termination step in ROMP are discussed. Applications in the field of chemical sensors, bioimaging, electroactive materials, self-assembly, photochromic and photoreactive materials are used to illustrate the versatility of ROMP as a technique to prepare complex functional materials. Graphical abstract

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Section: Polymethine Dyesmentioning

confidence: 99%

Section: Polymethine Dyesmentioning

confidence: 99%

Section: Photoreactive Materialsmentioning

confidence: 99%

Section: Photoreactive Materialsmentioning

confidence: 99%

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Dye-functionalized polymers via ring opening metathesis polymerization: principal routes and applications

2015

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“…The colour of the MC form depends on the difference in polarity between the photo‐excited MC form and the conjugated zwitterionic ground state. By utilising this property, we recently reported photochromic capillary coatings71, 83 (Table 1, no. 7) capable of detecting solvent of different polarities that are passing through a chemically modified capillary in continuous flow mode.…”

Section: Sensing Capabilitiesmentioning

confidence: 99%

Hydroxyethylcellulose‐graft‐poly(2‐(dimethylamino)ethyl methacrylate) as physically adsorbed coating for protein separation by CE

Cao

Zhou

et al. 2011

Electrophoresis

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In this work, a novel graft copolymer, hydroxyethylcellulose-graft-poly(2-(dimethylamino)ethyl methacrylate) (HEC-g-PDMAEMA), used as physical coatings of the bare fused-silica capillaries, was synthesized by using ceric ammonium nitrate initiator in aqueous nitric acid solution. EOF measurement results showed that the synthesized HEC-g-PDMAEMA graft copolymer-coated capillary in this paper could suppress EOF effectively compared to the bare fused-silica capillary, and efficient separations of basic proteins were also achieved. The electrical charge of the coated capillary wall could be modulated by varying not only the pH of the running buffer, but also the grafting ratio of poly(2-(dimethylamino)ethyl methacrylate) grafts, which makes possible the analysis of basic and acidic proteins in the same capillary. The effects of poly(2-(dimethylamino)ethyl methacrylate) grafting ratio in HEC-g-PDMAEMA and buffer pH on the separation of basic proteins for capillary electrophoresis were investigated in detail. Furthermore, egg white proteins and milk powder samples were separated by the HEC-g-PDMAEMA-coated capillary. The results demonstrated that the HEC-g-PDMAEMA copolymer coatings have great potential in the field of diagnosis and proteomics.

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Photo‐Responsive Polymeric Structures Based on Spiropyran

Florea

Diamond

Benito‐Lopez

2012

Macro Materials & Eng

Self Cite

112

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Spiropyrans are one of the most popular classes of photochromic compounds that change their optical and structural properties in response to external inputs such as light, protons and metal ions, making them ideal molecules for the fabrication of multifunctional stimuli-responsive materials. Nowadays, the emphasis in polymeric materials incorporating spiropyran units, focuses on the effectiveness of their reversible response to external photonic stimuli. Photo-control of a range of key characteristics for flow systems, such as wettability, permeability, photo-modulation of flow by photo-actuation of valves, photonic control of uptake and release of guests using films and coatings, and colorimetric sensing of various species, are highlighted and discussed.

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Photo-Detection of Solvent Polarities using Non-Invasive Coatings in Capillaries

Cited by 6 publications

References 5 publications

Dye-functionalized polymers via ring opening metathesis polymerization: principal routes and applications

Dye-functionalized polymers via ring opening metathesis polymerization: principal routes and applications

Hydroxyethylcellulose‐graft‐poly(2‐(dimethylamino)ethyl methacrylate) as physically adsorbed coating for protein separation by CE

Photo‐Responsive Polymeric Structures Based on Spiropyran

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