Preparation of novel β-CD/P(AA-<i>co</i>-AM) hydrogels by frontal polymerization

Li, Bin; Qin, Haibo; Ma, Ming; Xu, Xiaojia; Zhou, Mengjing; Hao, Wenrui; Hu, Zhigang

doi:10.1039/d2ra07649g

Cited by 9 publications

(8 citation statements)

References 48 publications

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“…However, carbonyl stretching in case of acrylic acid was found at 1699 cm −1 . The peak centred around 1300 cm −1 may occurred due to −O− linkage present in β‐cyclodextrin suggesting the incorporation of β‐cyclodextrin to the gel polymeric structure [37] . The presence of weak band at 2356 cm −1 appeared corresponding to −NH stretching due to the presence of −C−N group of the crosslinker.…”

Section: Methodsmentioning

confidence: 96%

“…The peak centred around 1300 cm À 1 may occurred due to À OÀ linkage present in βcyclodextrin suggesting the incorporation of β-cyclodextrin to the gel polymeric structure. [37] The presence of weak band at 2356 cm À 1 appeared corresponding to À NH stretching due to the presence of À CÀ N group of the crosslinker. The weakening of À OH intensity in prepared hydrogel indicates the formation of hydrogen bonding responsible for creating the bio-based hydrogel.…”

Section: Ft-ir Spectroscopic Studiesmentioning

confidence: 99%

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Reusable Underwater Superoleophobic Polyacrylamide Membranes for Effective Oil‐Water Separation and Dye Removal

Padhan,

Singh

2024

ChemistrySelect

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Water contamination by oily wastes continues to rise with industrialization and pose a threat to marine ecosystem and public health. Water repellent special wettability membranes have been fabricated for oil removal. These superhydrophobic membranes have been fabricated utilizing hazardous chemicals such as fluorinated compounds, which again have shown toxicity. In contrast, environmentally friendly separation membranes are required for oily wastewater treatment. In this regard, we fabricated underwater superoleophobic membrane based on β‐cyclodextrin and acrylamide for efficient and effective water‐oil separation. Acrylamide polymeric membrane was prepared by free radical co‐polymerisation by incorporating acrylic acid and β‐cyclodextrin as monomer via crosslinking with N,N‐methylene bis‐acrylamide. FT‐IR and PXRD used for characterizing the prepared hydrogel and studied for morphological analysis by FE‐SEM. The oil and water wetting characterization of gels were evaluated, in ambient and submerged conditions. The dried gel showed gradual decrease of contact angle for both oil and water indicating liquid absorption with time. However, in completely water wetted state hydrogel was superoleophobic with a very high oil contact angle of ≥170°. The pre‐wetted hydrogel efficiently and effectively separated oil/water mixtures with ~99 % separation efficiency. Additionally, its effectiveness was monitored over several days of continuous separation operation. Interestingly, the hydrogel was also able to remove dye from water. The underwater superoleophobic acrylamide‐β‐cyclodextrin hydrogel demonstrated high oil recovery efficiency and indicated the potential for repeated oil‐water separation process.

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Section: Methodsmentioning

confidence: 96%

Section: Ft-ir Spectroscopic Studiesmentioning

confidence: 99%

Reusable Underwater Superoleophobic Polyacrylamide Membranes for Effective Oil‐Water Separation and Dye Removal

Padhan,

Singh

2024

ChemistrySelect

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“…Very recently, Li and co-workers [60] exploited the frontal polymerization method for preparing pH-responsive and β-cyclodextrin-containing poly(acrylic acid-co-acrylamide) hydrogels. Toward this aim, a deep eutectic solvent mixture made of betaine (serving as a hydrogen bond acceptor), acrylic acid, and acrylamide (both serving as hydrogen bond donors) was employed.…”

Section: Drug Deliverymentioning

confidence: 99%

Polymer Hydrogels and Frontal Polymerization: A Winning Coupling

Mariani,

Malucelli

2023

Polymers

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Polymer hydrogels are 3D networks consisting of hydrophilic crosslinked macromolecular chains, allowing them to swell and retain water. Since their invention in the 1960s, they have become an outstanding pillar in the design, development, and application of engineered polymer systems suitable for biomedical and pharmaceutical applications (such as drug or cell delivery, the regeneration of hard and soft tissues, wound healing, and bleeding prevention, among others). Despite several well-established synthetic routes for developing polymer hydrogels based on batch polymerization techniques, about fifteen years ago, researchers started to look for alternative methods involving simpler reaction paths, shorter reaction times, and lower energy consumption. In this context, frontal polymerization (FP) has undoubtedly become an alternative and efficient reaction model that allows for the conversion of monomers into polymers via a localized and propagating reaction—by means of exploiting the formation and propagation of a “hot” polymerization front—able to self-sustain and propagate throughout the monomeric mixture. Therefore, the present work aims to summarize the main research outcomes achieved during the last few years concerning the design, preparation, and application of FP-derived polymeric hydrogels, demonstrating the feasibility of this technique for the obtainment of functional 3D networks and providing the reader with some perspectives for the forthcoming years.

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“…Although the traditional methods such as atomic absorption spectrometry (AAS), atomic fluorescence spectrometry (AFS), inductively coupled plasma mass spectrometry (ICP-MS), X-ray absorption spectrometry (XAS) have high sensitivity and low detection limits, they require complex sample processes and special equipment, which restricts their easy application [10]. The fluorescence analysis method, especially the organic fluorescent probe, can overcome the disadvantages of the earliermentioned methods [11][12][13].…”

Section: Introductionmentioning

confidence: 99%

Naphthalimide‐based fluorescent probe for Hg²⁺ detection and imaging in living cells and zebrafish

Wang,

Chen,

et al. 2024

Luminescence

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A simple naphthalimide‐based fluorescent probe was designed and synthesized for the determination of mercury ion (Hg2+). The probe showed a noticeable fluorescence quenching response for Hg2+. When added with Hg2+, the fluorescence intensity of the probe at 560 nm was remarkably decreased with the color changed from yellow to colorless under ultraviolet (UV) light. The probe had a notable selectivity and sensitivity for Hg2+ and displayed an excellent sensing performance when detecting Hg2+ at low concentration (19.5 nM). The binding phenomenon between the probe and Hg2+ was identified by Job's method and high‐resolution mass spectrometry (HRMS). Moreover, the probe was not only utilized to identify Hg2+ in real samples with satisfactory results (92.00%–110.00%) but also was successfully used for bioimaging in cells and zebrafish. The recognition mechanism has been verified by transmission electron microscopy (TEM) for the first time. All the results showed that the probe could be used as a potent useful tool for detection of Hg2+.

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Preparation of novel β-CD/P(AA-co-AM) hydrogels by frontal polymerization

Abstract: In this paper, betaine (Bet) was used as a hydrogen bond acceptor (HBA), and acrylic acid (AA) and acrylamide (AM) were used as hydrogen bond donors (HBD) and mixed to form a deep eutectic solvent (DES).

Cited by 9 publications

References 48 publications

Reusable Underwater Superoleophobic Polyacrylamide Membranes for Effective Oil‐Water Separation and Dye Removal

Reusable Underwater Superoleophobic Polyacrylamide Membranes for Effective Oil‐Water Separation and Dye Removal

Polymer Hydrogels and Frontal Polymerization: A Winning Coupling

Naphthalimide‐based fluorescent probe for Hg²⁺ detection and imaging in living cells and zebrafish

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Preparation of novel β-CD/P(AA-co-AM) hydrogels by frontal polymerization

Abstract: In this paper, betaine (Bet) was used as a hydrogen bond acceptor (HBA), and acrylic acid (AA) and acrylamide (AM) were used as hydrogen bond donors (HBD) and mixed to form a deep eutectic solvent (DES).

Cited by 9 publications

References 48 publications

Reusable Underwater Superoleophobic Polyacrylamide Membranes for Effective Oil‐Water Separation and Dye Removal

Reusable Underwater Superoleophobic Polyacrylamide Membranes for Effective Oil‐Water Separation and Dye Removal

Polymer Hydrogels and Frontal Polymerization: A Winning Coupling

Naphthalimide‐based fluorescent probe for Hg2+ detection and imaging in living cells and zebrafish

Contact Info

Product

Resources

About

Naphthalimide‐based fluorescent probe for Hg²⁺ detection and imaging in living cells and zebrafish