Liquid marbles as a micro-reactor for efficient radical alternating copolymerization of diene monomer and oxygen

Sato, Eriko; Yuri, Michihiro; Fujii, Syuji; Nishiyama, Takashi; Nakamura, Yoshinobu; Horibe, Hideo

doi:10.1039/c5cc07421e

Cited by 71 publications

(56 citation statements)

References 47 publications

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“…Such micro‐reactors offer significant advantages namely in reducing the use of chemical reagents and solvents, providing a well‐confined micro‐environment and a versatile and cost‐effective platform. Taking benefit from these LM characteristics, several potential applications have been successfully exploited for chemiluminescence reactions, acid–base reactions, nanocomposite synthesis, polymerizations, silver mirror reactions, and heterogeneous catalytic reactions . An obvious use of LM in the biological area is also the miniaturization of processes for biological reactions and diagnostic assays.…”

Section: Biomedical Applicationsmentioning

confidence: 99%

“…A well‐known and explored property of LM are the gas permeable nature of their shell, demonstrate in several reports related with gas sensing and gas reactions . The gas permeability is a vital feature for LM application in cell culture, allowing the oxygen and carbon dioxide exchange between cell culture medium and surrounding environment.…”

Section: Biomedical Applicationsmentioning

confidence: 99%

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The Potential of Liquid Marbles for Biomedical Applications: A Critical Review

Oliveira

Reis

Mano

2017

Adv Healthcare Materials

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Liquid marbles (LM) are freestanding droplets covered by micro/nanoparticles with hydrophobic/hydrophilic properties, which can be manipulated as a soft solid. The phenomenon that generates these soft structures is regarded as a different method to generate a superhydrophobic behavior in the liquid/solid interface without modifying the surface. Several applications for the LM have been reported in very different fields, however the developments for biomedical applications are very recent. At first, the LM properties are reviewed, namely shell structure, LM shape, evaporation, floatability and robustness. The different strategies for LM manipulation are also described, which make use of magnetic, electrostatic and gravitational forces, ultraviolet and infrared radiation, and approaches that induce LM self-propulsion. Then, very distinctive applications for LM in the biomedical field are presented, namely for diagnostic assays, cell culture, drug screening and cryopreservation of mammalian cells. Finally, a critical outlook about the unexplored potential of LM for biomedical applications is presented, suggesting possible advances on this emergent scientific area.

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Section: Biomedical Applicationsmentioning

confidence: 99%

Section: Biomedical Applicationsmentioning

confidence: 99%

The Potential of Liquid Marbles for Biomedical Applications: A Critical Review

Oliveira

Reis

Mano

2017

Adv Healthcare Materials

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“…The chemical composition of the inner materials in the liquid marble was determined by a 1 H NMR analysis. As we previously reported, 38 PP-HES was obtained as the main component (52 wt%) and the rest consisted of PHES, unreacted HES, and one of the degradation products of PP-HES, fumaraldehyde 2-hydroxyethyl ester (FA-2HE) ( Table 1). The loading amount of the outer lycopodium powder based on the inner materials was gravimetrically estimated to be less than 5 wt%, in which the weight of the absorbed oxygen to form PP-HES was calculated from the resulting PP-HES content.…”

Section: Resultsmentioning

confidence: 99%

“…38 A typical polymerization procedure is as follows. The ground AMVN crystals by a mortar were added to HES and the mixture was stirred at room temperature for 15 min.…”

Section: Polymerization Of Hes In a Liquid Marblementioning

confidence: 99%

“…37 We recently reported that liquid marbles act as a novel micro-reactor to efficiently synthesize polyperoxides from 1,3-diene monomers. 38 The synthesis of polyperoxides in the liquid marbles does not require oxygen bubbling and stirring during the polymerization due to an adequate oxygen supply through the large and permeable gas-liquid interface, and has the potential to save manufacturing energy. As mentioned above, we previously reported that polyperoxides act as dismantlable adhesives and the polyperoxides derivatives with low glass transition temperature, i.e., sticky polyperoxides, show PSA behavior with dismantlable properties.…”

Section: Introductionmentioning

confidence: 99%

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Liquid marble containing degradable polyperoxides for adhesion force-changeable pressure-sensitive adhesives

et al. 2016

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Liquid marbles containing a sticky polyperoxide were prepared by the in situ copolymerization of the 1,3-diene monomer with oxygen. The as-prepared liquid marbles had a non-sticky nature and could move on any substrates due to the presence of hard particles on their surfaces, while the squeezed liquid marble developed adhesion force-tunable PSA properties due to the outflow of the inner materials. The 180 peel strength of the squeezed liquid marble increased by heating at 90 C for 1 h or by UV irradiation at 0.86 J cm À2 because the cohesive force of the adhesive layer increased by the additional polymerization initiated by moderate decomposition of the polyperoxide. The increased 180 peel strengths were significantly decreased again to almost zero, i.e., dismantling, after an additional heating at 150 C for 1 h because of an excess increase in the cohesive force as pressure-sensitive adhesives, where cross-linking took place as a result of significant decomposition of the polyperoxide accompanied by hydrogen abstraction and coupling.

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Stimuli‐Responsive Liquid Marbles: Controlling Structure, Shape, Stability, and Motion

Fujii

Yusa

Nakamura

2016

Adv Funct Materials

158

156

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Liquid marbles" are liquid-in-gas dispersed systems stabilized by hydrophobic solid particles adsorbed at the gas-liquid interface. The structure, stability and movement of these liquid marbles can be controlled by external stimuli such as pH, temperature, light, magnetic and electric fi elds, ultrasonic, mechanical stress and organic solvents. Stimuli-responsive modes can be categorized into fi ve classes: (i) liquid marbles whose stability can be controlled by adsorption/desorption of solid particles to/from liquid surfaces, (ii) liquid marbles that can open and close their particle-coated surface by moving particles to and from the gas-liquid surface, (iii) liquid marbles that can move, (iv) liquid marbles that can change their shape and (v) liquid marbles that can be split. As a result of these stimuli-responsive characteristics, liquid marbles offer potential in the areas of controlled encapsulation, delivery and release.

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Liquid marbles as a micro-reactor for efficient radical alternating copolymerization of diene monomer and oxygen

Cited by 71 publications

References 47 publications

The Potential of Liquid Marbles for Biomedical Applications: A Critical Review

The Potential of Liquid Marbles for Biomedical Applications: A Critical Review

Liquid marble containing degradable polyperoxides for adhesion force-changeable pressure-sensitive adhesives

Stimuli‐Responsive Liquid Marbles: Controlling Structure, Shape, Stability, and Motion

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