A CO2-switchable surface on aluminium

Liu, Hanbin; Yuan, Xilong; Ho, Jaddie; Cunningham, Michael F.; Oleschuk, Richard D.; Jessop, Philip G.

doi:10.1016/j.apsusc.2020.146630

Cited by 6 publications

(3 citation statements)

References 36 publications

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“…From the high-resolution scan of the C 1s spectrum of Fe 3 O 4 /SiO 2 /PDEA(Figure c), the peaks at 293.5, 288.4, 286.8, and 284.9 eV were ascribed to the C–N, CO, C–H, and C–C bonds in PDEA, respectively . In the high-resolution scan of the C 1s spectrum of Fe 3 O 4 /SiO 2 /PDEA-MIP (Figure d), the peaks at 292.2, 288.6, 286.2, and 284.8 eV belonged to the C–N, CO, C–H, and C–C bonds. , Compared with Figure c, the peak area of C–H in Figure d increased and its position shifted slightly, suggesting the successful polymerization of dopamine. Compared with Fe 3 O 4 /SiO 2 /PDEA in Figure e, the high-resolution scan of the O 1s spectrum of Fe 3 O 4 /SiO 2 /PDEA-MIP at around 533.8 showed an additional O–H bond in Figure f; combined with the structural formula of dopamine in Scheme , the successful coating of dopamine was proved .…”

Section: Resultsmentioning

confidence: 98%

CO₂ and Magnetic Dual-Responsive Microspheres That Reversibly and Selectively Capture Target Proteins under Mild Conditions

Gao

Yang

Chen

et al. 2023

ACS Appl. Polym. Mater.

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CO 2 -responsive polymers transform from hydrophobic to hydrophilic under a gas stimulus, which can be used to capture proteins under mild conditions; however, the selectivity is not high enough. In this work, Fe 3 O 4 enveloped with silicon dioxide (SiO 2 ) was prepared and grafted on poly(2-(diethylamino)ethyl methacrylate) (PDEA) through the atom transfer radical polymerization (ATRP) technique, yielding a CO 2 -responsive magnetic microsphere. The molecularly imprinted surface was then fabricated using poly(dopamine) (PDA) with bovine serum albumin (BSA) as a template, producing gas and magnetic dualresponsive microspheres with good selectivity, denoted as Fe 3 O 4 /SiO 2 / PDEA-MIP. Their chemical structure and CO 2 responsiveness were confirmed. Their adsorption capacity for BSA was 55 mg g −1 under the concentration of 0.8 mg mL −1 with good reversibility. The imprinting factor (IF) reached as high as 5.73 under optimized adsorption conditions, which further makes it specifically capture the target protein from a mixture and separate the protein under gas or magnetic control. The interaction between BSA with unprotonated and protonated PDEA was theoretically studied by quantum mechanics calculations, which prove its reversibility under the CO 2 stimulus. Furthermore, the circular dichroism (CD) spectra approved that the conformation of proteins remained unchanged under the CO 2 stimulus, indicating that it is a moderate separation technique for proteins. This work supplied a strategy to develop highly selective and switchable materials to realize protein recognition and separation under mild conditions.

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Section: Resultsmentioning

confidence: 98%

CO₂ and Magnetic Dual-Responsive Microspheres That Reversibly and Selectively Capture Target Proteins under Mild Conditions

Gao

Yang

Chen

et al. 2023

ACS Appl. Polym. Mater.

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“…A diverse range of CO 2 -responsive materials has been formed. These include polymers and polymer colloids; 50,53,[58][59][60][61] solvents, 54,62,63 catalysts, [64][65][66] and surfactants; 54,67,68 surfaces and coatings; 69,70 emulsions; [71][72][73][74][75] foams; [76][77][78] membranes; 63,79,80 particles and latexes; [81][82][83] cotton fibres, [84][85][86] and ionic liquids. [87][88][89] Similarly, CO 2 -induced self-assembled structures with complex morphologies have been realised including vesicles, 90,91 worm-like micelles, [92][93][94] and nano-objects.…”

Section: Maedeh Ramezanimentioning

confidence: 99%

CO₂-responsive gels

et al. 2023

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“…A wide range of materials has been made CO 2 ‐responsive by incorporating CO 2 ‐switchable polymers into their structure, including for example polymer nanoparticles, switchable viscosity solutions, switchable surfaces (e.g., aluminum) [ 10 ] and a variety of complex morphologies, including for example creative structures like “breathing” vesicles, made possible by reversible self‐assembly of CO 2 ‐responsive polymers. [ 11 ] Many of these self‐assembling CO 2 ‐switchable polymers have been made using reversible deactivation radical polymerization (RDRP), allowing the advantages of controlled molecular weight and chain composition to be combined with CO 2 ‐responsiveness.…”

Section: Types Of Co2‐switchable Polymers and Processesmentioning

confidence: 99%

Carbon Dioxide Switchable Polymers – Recent Developments and Emerging Applications

Cunningham

Jessop

2022

Macro Reaction Engineering

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Dedicated to Professor Timothy McKenna on the occasion of his 60th birthdayCarbon dioxide has emerged as an alternative trigger for stimuli-responsive or "switchable" materials that has unique advantages compared to conventional triggers. The principles of CO 2 switching have been applied to a wide range of materials and processes, including polymeric materials and polymerization processes. This Perspective briefly reviews the types of polymer materials that have been made CO 2 -switchable, and the types of processes where CO 2 switching has been utilized to address process-related challenges such as catalyst recovery. Recent research is then highlighted conducted in the groups on a range of new switchable polymers and processes, emphasizing emerging applications where CO 2 switching may offer novel solutions and opportunities for commercial development.

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A CO2-switchable surface on aluminium

Cited by 6 publications

References 36 publications

CO₂ and Magnetic Dual-Responsive Microspheres That Reversibly and Selectively Capture Target Proteins under Mild Conditions

CO₂ and Magnetic Dual-Responsive Microspheres That Reversibly and Selectively Capture Target Proteins under Mild Conditions

CO₂-responsive gels

Carbon Dioxide Switchable Polymers – Recent Developments and Emerging Applications

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A CO2-switchable surface on aluminium

Cited by 6 publications

References 36 publications

CO2 and Magnetic Dual-Responsive Microspheres That Reversibly and Selectively Capture Target Proteins under Mild Conditions

CO2 and Magnetic Dual-Responsive Microspheres That Reversibly and Selectively Capture Target Proteins under Mild Conditions

CO2-responsive gels

Carbon Dioxide Switchable Polymers – Recent Developments and Emerging Applications

Contact Info

Product

Resources

About

CO₂ and Magnetic Dual-Responsive Microspheres That Reversibly and Selectively Capture Target Proteins under Mild Conditions

CO₂ and Magnetic Dual-Responsive Microspheres That Reversibly and Selectively Capture Target Proteins under Mild Conditions

CO₂-responsive gels