An“ON–OFF” switchable power output of enzymatic biofuel cell controlled by thermal-sensitive polymer

Chen, Yun; Gai, Panpan; Xue, Jingjing; Zhang, Jian‐Rong; Zhu, Jun‐Jie

doi:10.1016/j.bios.2015.06.028

Cited by 37 publications

(12 citation statements)

References 24 publications

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“…In particular, they provide a versatile platform to influence, select, and tune the uptake/release of nanoparticles, − with potential applications in dusty flow regeneration or regenerative medicine . Furthermore, the nanocomposite can be of practical interests in the fields of biosensors and actuators − and can be used as hosting matrices to immobilize NPs. In that case, the choice of specific NPs could be useful to confer to the resulting material some particular optical, magnetic, and mechanical properties.…”

Section: Introductionmentioning

confidence: 99%

Functional Poly(N-isopropylacrylamide)/Poly(acrylic acid) Mixed Brushes for Controlled Manipulation of Nanoparticles

Léonforte

Müller

2016

Macromolecules

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Molecular dynamics simulations of a coarse-grained model with soft, nonbonded interactions and implicit solvent are used to study the temperature- and pH-sensitive response of mixed brushes composed of poly(N-isopropylacrylamide) [PNIPAm] and poly(acrylic acid) [PAA] polymers. The model is developed in order to address experimentally relevant, large invariant degrees of polymerization, and nonbonded interactions are expressed via a third-order virial expansion of the equation of state. The choice of interaction parameters for PNIPAm mimics the swelling behavior in water as the temperature increases toward the lower critical solution temperature, T LCST, and the model captures the pH-dependent response of PAA at fixed ionic strength (IS). For this case, the solvent-mediated Flory–Huggins parameter is adapted to reproduce the experimental pH swelling of the homopolymer brush. Mixed brushes incorporating various amounts of PAA are considered, and the effect of mixing polymers on the response of the mixed brushes to both temperature and pH changes is discussed. Additionally, nanoparticles (NPs) that preferably interact with the PAA portion of the polymers are considered. As a function of their radius and the size of the functional NP-attractive groups on PAA chains, the capability to capture NP and allow them to penetrate inside brushes is studied at various temperatures and fixed pH. Moreover, the kinetics of adsorption and release of NPs is investigated.

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Section: Introductionmentioning

confidence: 99%

Functional Poly(N-isopropylacrylamide)/Poly(acrylic acid) Mixed Brushes for Controlled Manipulation of Nanoparticles

Léonforte

Müller

2016

Macromolecules

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“…Thus, this repeatable on -off character was displayed at 20-458C. Moreover, bioconjugates were also shown to be stable during operation for multiple cycles [48]. In these studies, PNiPAAm showed promising application to protect and stabilize the enzymes.…”

Section: Smart Biosensorsmentioning

confidence: 86%

An update on smart biocatalysts for industrial and biomedical applications

Shakya

Nandakumar

2018

J. R. Soc. Interface.

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Recently, smart biocatalysts, where enzymes are conjugated to stimuli-responsive (smart) polymers, have gained significant attention. Based on the presence or absence of external stimuli, the polymer attached to the enzyme changes its conformation to protect the enzyme from the external environment and regulate the enzyme activity, thus acting as a molecular switch. Owing to this behaviour, smart biocatalysts can be separated easily from a reaction mixture and re-used several times. Several such smart polymer-based biocatalysts have been developed for industrial and biomedical applications. In addition, they have been used in biosensors, biometrics and nano-electronic devices. This review article covers recent advances in developing different kinds of stimuli-responsive enzyme bioconjugates, including conjugation strategies, and their applications.

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“…After coating with PNIPAAm, the valve was hydrophilic at room temperature and allowed the flow (opening status), while at 70 C, the valve was superhydrophobic and stopped the water flow (closing status). Using a similar idea, an "ON-OFF" switchable enzymatic biofuel cell was reported [166]. Here, gold nanoparticles protected glucose oxidase and laccase were entrapped into PNIPAAm chains.…”

Section: Temperaturementioning

confidence: 99%

Switchable and Reversible Superhydrophobic Surfaces: Part One

Taleb¹,

Darmanin²,

Guittard³

2018

Interdisciplinary Expansions in Engineering and Design With the Power of Biomimicry

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In this chapter, most of the methods used in the literature to prepare switchable and reversible superhydrophobic surfaces are described. Inspired by Nature, it is possible to induce the Cassie-BaxterÀWenzel transition using different external stimuli such as light, temperature, pH, ion exchange, voltage, magnetic field, mechanic stress, plasma, ultrasonication, solvent, gas or guest. Such properties are extremely important for various applications but especially for controllable oil/water separation membranes, oilabsorbing materials and water harvesting systems.

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An“ON–OFF” switchable power output of enzymatic biofuel cell controlled by thermal-sensitive polymer

Cited by 37 publications

References 24 publications

Functional Poly(N-isopropylacrylamide)/Poly(acrylic acid) Mixed Brushes for Controlled Manipulation of Nanoparticles

Functional Poly(N-isopropylacrylamide)/Poly(acrylic acid) Mixed Brushes for Controlled Manipulation of Nanoparticles

An update on smart biocatalysts for industrial and biomedical applications

Switchable and Reversible Superhydrophobic Surfaces: Part One

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