Host–guest chemistry at interface for photoswitchable bioelectrocatalysis

Wan, Pengbo; Xing, Yibo; Chen, Yueyue; Chi, Lifeng; Zhang, Xi

doi:10.1039/c1cc11289a

Cited by 35 publications

(28 citation statements)

References 24 publications

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“…Wan et al . designed a photoswitchable‐bioelectrocatalytic system using host‐guest chemistry . Azobenzene and ferrocene were used as light and redox stimuli respectively.…”

Section: Applications Of Ferrocene‐based Electro and Photo Responsivementioning

confidence: 99%

“…Azobenzene and ferrocene were used as light and redox stimuli respectively. It has been reported that this kind of systems can be used as optoelectronics and photoswitchable biofuel cells (Figure ) …”

Section: Applications Of Ferrocene‐based Electro and Photo Responsivementioning

confidence: 99%

“…(a) Schematic assembly of azo‐based self‐assembled monolayer and (b) photoresponsive activation and deactivation of redox active coated surfaces. Adopted with permission from ref. Copyright 2011, Royal Society of Chemistry…”

Section: Applications Of Ferrocene‐based Electro and Photo Responsivementioning

confidence: 99%

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Research advances in the synthesis and applications of ferrocene‐based electro and photo responsive materials

Khan

Wang

Haroon

et al. 2018

Applied Organom Chemis

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Individually, ferrocene and photochromic materials have several important attributes and applications. Ferrocene is a promising candidate of stimuliresponsive materials due to its electronic, electrochemical and magnetic properties. On the same lines, photo-sensitive materials are also an important class of stimuli-responsive materials which can be modified according to the needs.Recently, a lot of keen attention has been given to the combination of ferrocene with different photo-sensitive moieties to get novel functional materials. This review illustrates the research advances in the combination of ferrocene-based small molecules, self-assembled monolayers and polymers with photo-responsive compounds and their potential applications.

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“…Wan et al . designed a photoswitchable‐bioelectrocatalytic system using host‐guest chemistry . Azobenzene and ferrocene were used as light and redox stimuli respectively.…”

Section: Applications Of Ferrocene‐based Electro and Photo Responsivementioning

confidence: 99%

Section: Applications Of Ferrocene‐based Electro and Photo Responsivementioning

confidence: 99%

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Research advances in the synthesis and applications of ferrocene‐based electro and photo responsive materials

Khan

Wang

Haroon

et al. 2018

Applied Organom Chemis

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“…Zhang and co‐workers fabricated a photo‐switchable bioelectrocatalysis using a ferrocene‐labeled redox‐polymer as mediate, which can be reversibly immobilized on photo‐responsive azobenzene‐modified surfaces controlled by light. Firstly, poly(acrylic acid) polymer grafted with β‐CD was assembled onto azobenzene‐containing self‐assembled monolayer modified gold surface through host–guest interactions between azobenzene and β‐CD.…”

Section: Photochromism In Artificial Supramolecular Self‐assembling Smentioning

confidence: 99%

Recent Progress in Photoswitchable Supramolecular Self‐Assembling Systems

Yao

Wang

et al. 2016

Advanced Optical Materials

167

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structures with response to internal factors or external environment stimuli either physically or chemically. Among different stimuli methods including temperature, pH and redox etc., light is the most attractive and convenient one with many advantages: 1) it does not introduce any foreign chemicals into the systems; 2) it can be conveniently switched on and off, and tuned precisely at different wavelengths and intensities; 3) it can be operated with high level of spatiotemporal resolution; 4) it can be conveniently applied as an orthogonal stimulus. Moreover, on the way to explore more sophisticated selforganizations under non-equilibrium conditions, light will act as more than a simple stimulus but as an energy input and medium for information, just like what happened in light-triggered or lightdriven biological processes such as vision and photosynthesis.Photochromic compounds, as one big family of photo-responsive compounds, can provide reversible switch of chemical or physical properties of supramolecular systems solely by light. Photochromism is defi ned as "reversible transformation of a chemical species induced in one or both directions by absorption of electromagnetic radiation between two forms, A and B, having different absorption spectra". [ 3 ] The key word "reversible" refl ects its signifi cant difference from irreversible photochemical processes in a broader realm of photo-responsive compounds. Depending on the relative thermal stability of the two isomers, the back reaction of photochromic compounds can be divided into T-type (thermal) photochromism and P-type (photochemical) one. Compounds with T-type photochromism are thermally unstable and revert to original thermal stable state spontaneously within milliseconds to a few minutes, while compounds with P-type photochromism are thermally stable in both states and need photo irradiation to recover. During the isomerization, the change of absorption spectra is the common but not only outcome which always accompanied by various changes in chemical or physical properties such as geometric structures, fl uorescence emission, conjugation, dipole moment, electron conductivity, electrochemical properties, and so forth. [ 4 ] Since the properties are usually switched between two distinct states, photochromic compounds are also referred to as photoswitches in many cases. These features make them good candidates for fabricating light-controlled materials [ 5 ] in various fi eldsThe rise of supramolecular chemistry has drawn great attention to the designed self-assembly of synthetic molecules. Supramolecular self-assembly has become an effi cient strategy in constructing well-ordered nanostructures using a bottom-up way in material science and has also shown its great potential in biological applications. Photochromic compounds are small organic molecules which can undergo reversible photochemical reactions between two chemical species with distinct properties. They have been incorporated into various materials for applications including optical devices, dat...

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“…In addition, azobenzene-CD SAMs have been employed to mediate the oxidation of glucose by GOx [258] and immobilize and release proteins on demand [259]. Interestingly, the azobenzene-CD SAM designed to control protein immobilization was not only able to respond to light but also to changes in pH.…”

Section: Samsmentioning

confidence: 99%

Stimuli‐Responsive Surfaces in Biomedical Applications

Pranzetti¹,

Preece²,

Mendes³

2013

Intelligent Stimuli‐Responsive Materials

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Nature provides mechanisms that are able to dynamically control specific and nonspecific interactions between cells and biological surfaces [1,2]. Scientists have long tried to reproduce these dynamic biological events and have recently made an important step in that direction by creating artificial stimuli-responsive surfaces [3][4][5][6][7]. These smart substrates present modulatory surface properties that are able to respond to external chemical/biochemical [8][9][10][11][12], thermal [13][14][15], electrical [16][17][18][19][20], and optical stimuli [21][22][23][24][25][26][27][28][29][30][31]. Due to their dynamic nature such substrates are very appealing for applications in the biomedical field [32]. Progress to date has led to control over biomolecule activity [33] and immobilization of a diverse array of proteins, including enzymes [34] and antibodies [35]. These prior achievements have encouraged researchers to take the challenge of using dynamic surfaces to modulate larger and more complex systems, such as bacteria [36] and mammalian cells [37].Achieving control over surface properties could provide new insights in the understanding of cell behavior and can offer distinct benefits with regard to the development of medical devices. For instance, the modulation of cell attachment and detachment could lead to the prevention of unwanted bacteria fouling on implants, reducing the risk of infections and rejection [38][39][40][41][42]. Furthermore, dynamic surfaces able to present on demand regulatory signals to a cell could provide unprecedented opportunities in studies of cell responses in real-time. Cells in tissues adhere to and interact with their extracellular environment via specialized cell-cell and cell-extracellular

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Host–guest chemistry at interface for photoswitchable bioelectrocatalysis

Abstract: Photoswitchable bioelectrocatalysis of glucose with glucose oxidase in an "On-Off" state is fabricated from host-guest chemistry at an interface by using the photocontrolled reversible immobilization and detachment of ferrocene-labeled redox-polymer as mediator.

Cited by 35 publications

References 24 publications

Research advances in the synthesis and applications of ferrocene‐based electro and photo responsive materials

Research advances in the synthesis and applications of ferrocene‐based electro and photo responsive materials

Recent Progress in Photoswitchable Supramolecular Self‐Assembling Systems

Stimuli‐Responsive Surfaces in Biomedical Applications

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