Self-healing ability and particle size effect of encapsulated cerium nitrate into pH sensitive microcapsules

Matsuda, Takeshi; Jadhav, Niteen; Kashi, Kiran B.; Jensen, Mark B.; Suryawanshi, Abhijit; Gelling, Victoria J.

doi:10.1016/j.porgcoat.2015.10.021

Cited by 42 publications

(12 citation statements)

References 26 publications

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“…During the last two decades, considerable attempts have been made to develop drug delivery control technologies . Among which, the development of new smart carriers is mandatory to reach the goal of drug delivery control in special condition, for example, intestine environment, intracellular targets, coatings . The materials utilized as intelligent carriers are capable of responding to environmental variations, and are usually envisaged to develop crosslinked network that enable them absorb or desorb large quantities of water in response to environmental trigger, such as the variation of temperature, pH, and concentration of some chemical .…”

Section: Introductionmentioning

confidence: 99%

“…Among which, the development of new smart carriers is mandatory to reach the goal of drug delivery control in special condition, for example, intestine environment, intracellular targets, coatings . The materials utilized as intelligent carriers are capable of responding to environmental variations, and are usually envisaged to develop crosslinked network that enable them absorb or desorb large quantities of water in response to environmental trigger, such as the variation of temperature, pH, and concentration of some chemical . Therefore, such materials deserve the potential applications in site‐specific drug delivery systems and now have been successfully applied in biomedical area .…”

Section: Introductionmentioning

confidence: 99%

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pH‐sensitive polymeric particles as smart carriers for rebar inhibitors delivery in alkaline condition

Feng

Yang

Dong

et al. 2017

J of Applied Polymer Sci

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The waste problem of the rebar inhibitors is very serious due to that it is a long time before they can exert their best effect in the concrete and they are kept losing all the time. However, there is still no effective solution to alleviate such situation. Meanwhile, drug delivery control technology based on environmental sensitive polymers has been successfully applied in biomedical fields. Thus, poly(acrylic acid)–acrylamide was synthesized as smart carrier for controlling rebar inhibitors delivery in concrete. Dipotassium hydrogen phosphate as model drug was encapsulated inside the polymeric particles via a self‐assembly process. The pH‐responsive activities of the polymeric particles were estimated by monitoring their swelling performances in solutions of different pH values and the drug delivery control characteristics were studied in simulated concrete pore solutions. The results indicate the polymeric particles deserve network structures with high porosity and exhibit excellent pH‐responsive activities, which can perform as perfect intelligent carriers whereas the releasing of the inhibitors follows the first‐order kinetic law. The work suggests a new application field of drug delivery control technology. © 2017 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2018, 135, 45886.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

pH‐sensitive polymeric particles as smart carriers for rebar inhibitors delivery in alkaline condition

Feng

Yang

Dong

et al. 2017

J of Applied Polymer Sci

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“…[ 69 ] A pH‐sensitive microcapsule composed of a cross‐linked polyester shell and containing cerium nitrate as the inhibitor was designed to release the inhibitors in response to a hydrolysis reaction. [ 56,70 ] The under‐film corrosion of a steel sheet was suppressed by addition of pH sensitive microcapsules to the coating matrix. The subsequent release of cerium ions was confirmed on a corroding steel surface.…”

Section: Self‐healing Under Extreme Environmentsmentioning

confidence: 99%

Challenges and Opportunities of Self‐Healing Polymers and Devices for Extreme and Hostile Environments

et al. 2021

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Engineering materials and devices can be damaged during their service life as a result of mechanical fatigue, punctures, electrical breakdown, and electrochemical corrosion. This damage can lead to unexpected failure during operation, which requires regular inspection, repair, and replacement of the products, resulting in additional energy consumption and cost. During operation in challenging, extreme, or harsh environments, such as those encountered in high or low temperature, nuclear, offshore, space, and deep mining environments, the robustness and stability of materials and devices are extremely important. Over recent decades, significant effort has been invested into improving the robustness and stability of materials through either structural design, the introduction of new chemistry, or improved manufacturing processes. Inspired by natural systems, the creation of self‐healing materials has the potential to overcome these challenges and provide a route to achieve dynamic repair during service. Current research on self‐healing polymers remains in its infancy, and self‐healing behavior under harsh and extreme conditions is a particularly untapped area of research. Here, the self‐healing mechanisms and performance of materials under a variety of harsh environments are discussed. An overview of polymer‐based devices developed for a range of challenging environments is provided, along with areas for future research.

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“…Therefore, the effective encapsulation of corrosion inhibitor is required to control the release. There have been many reports on encapsulation of the corrosion inhibitors, where the release is triggered by pH [18][19][20] or crack. 21,22 Matsuda et al has synthesized pH-sensitive microcapsules with a shell composed of ester chains with the ability to be hydrolyzed in both alkaline and acidic, which can form oxide layer on the steel substrate.…”

Section: Introductionmentioning

confidence: 99%

Ion-triggered calcium hydroxide microcapsules for enhanced corrosion resistance of steel bars

et al. 2018

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Self-healing ability and particle size effect of encapsulated cerium nitrate into pH sensitive microcapsules

Cited by 42 publications

References 26 publications

pH‐sensitive polymeric particles as smart carriers for rebar inhibitors delivery in alkaline condition

pH‐sensitive polymeric particles as smart carriers for rebar inhibitors delivery in alkaline condition

Challenges and Opportunities of Self‐Healing Polymers and Devices for Extreme and Hostile Environments

Ion-triggered calcium hydroxide microcapsules for enhanced corrosion resistance of steel bars

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