Physico‐Chemical Processes

Bai, Hua; Xiong, Huayu; Kadhom, Mohammed; Wang, Lei; Zhu, Guocheng; Yang, John Jeongseok; Cunningham, Gary; Deng, Baolin

doi:10.2175/106143017x15023776270214

Cited by 20 publications

(8 citation statements)

References 77 publications

(79 reference statements)

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“…Ionic hydrogel-based materials are well-known for their potential applications in drugs/dyes-adsorption and wastewater treatment. ,− To explore such possibilities for this cationic G3 hydrogel, we examined its removal efficiency toward EB dye and SZ drug via UV–vis spectroscopy. The result showed that the absorbances at λ max,EB = 520 nm and λ max,SZ = 359 nm for EB and SZ, respectively, decreased drastically within 24 h, as could be seen clearly from the UV–vis spectra of the supernatant dye solutions before and after charging with G3 (Figure A,B).…”

Section: Resultsmentioning

confidence: 99%

Poly(Acryloyl-l-Serine): A Reactive Polypeptide to Introduce Zwitterion and Amphiphilicity for Stimuli-Responsiveness and Gelability

Dinda,

Das,

Anas

et al. 2024

Macromolecules

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The rising development in the field of synthetic-functionalized polypeptides aids in the generation of advanced biomaterials comprising versatile functionalities, enabling them to be potential candidates for their progressive applications in different areas. Thus, in this work, the ring-opening polymerization (ROP) of a designed acryloyl-L-serine N-carboxyanhydride (SerA NCA) monomer is conducted to produce side-chain acryloyl-functionalized poly(acryloyl-L-serine) [P(AcSer)] for its facile and selective functionalization to introduce zwitterionic and amphiphilic groups for stimuliresponsiveness as well as gelability via Michael addition and radical polymerization. The postfunctionalization of P(AcSer) with L-cysteine (Cys) leads to the formation of the zwitterionic polypeptide, P(AcSer)-g-Cys, which has an isoelectric point (pI) of 2.7. Near the pI, the aqueous P(AcSer)-g-Cys solution exhibits pH-responsiveness (pH ranges of 2.2−4.1), transforming the transparent solution to a cloudy suspension containing insoluble hierarchical nanoaggregates of various dendritic morphologies. Notably, this cloudy suspension undergoes a upper critical solution temperature (UCST)-type phase transition with tunable cloud points, transforming it into a clear solution upon heating. The addition of triethylene glycol monomethyl ether thiol (MTEG-SH) to P(AcSer) produces amphiphilic P(AcSer)-g-MTEG, which forms vesicular nanoassemblies in water and is capable of encapsulating hydrophobic Nile red (NR) dye present in water. Apart from that, grafting of MTEG moiety introduces lower critical solution temperature (LCST) property to P(AcSer)-g-MTEG in water. Thiol-based cross-linkers and ionic-liquid-based cationic cross-linker are employed for the gelation of acryl-functionalized P(AcSer). The obtained polypeptide gel materials exhibit excellent swelling behaviors in organic/aqueous media. Additionally, the cationic polypeptide gel shows profound dye adsorption capacity under exposure to the aqueous solution of eosin B and sulfasalazine.

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Section: Resultsmentioning

confidence: 99%

Poly(Acryloyl-l-Serine): A Reactive Polypeptide to Introduce Zwitterion and Amphiphilicity for Stimuli-Responsiveness and Gelability

Dinda,

Das,

Anas

et al. 2024

Macromolecules

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“…[ 92 ] To solve this crisis, a variety of membrane separation technologies, such as ultrafiltration, [ 93‐94 ] nanofiltration, [ 95‐96 ] membrane distillation, [ 97 ] reverse osmosis, [ 98 ] and reverse osmosis [ 99 ] have been developed and are widely used for desalination of seawater and recycling of polluted water. [ 100‐101 ] Membrane separation technology has been proven to be a safe, energy‐saving and environmentally sustainable method. Due to structural advantages, ultra‐thin MOF/COF membranes are expected to become the next generation liquid separation membranes with high permeability and selectivity.…”

Section: Application Of 2d Mofs/cofsmentioning

confidence: 99%

Two‐Dimensional Metal‐Organic Frameworks and Covalent Organic Frameworks

2022

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Comprehensive Summary Two‐dimensional (2D) metal/covalent organic framework (MOF/COF) materials have ultra‐thin thickness and large surface area. These advantages bestow them the characteristics of low resistance and high flux in the process of material transportation. Meanwhile, more active sites promote their application in the fields of catalysis and sensing. Recently, 2D MOF/COF materials usher in a new wave of research. It is necessary to summarize the latest developments in this field in a timely and systematic manner and clarify future trends. In this review, we firstly introduce the advantages of 2D MOF/COF materials in hetero‐porous structure and functional modification. Then, we discuss advanced strategies for preparing 2D MOF/COF materials, such as in‐situ growth, interface synthesis, exfoliation method, electrochemical method, surfactant‐assisted synthesis, and laminated assembly of MOF/COF nanosheets. Finally, we summarize the applications of 2D MOF/COF materials in membrane separation, sensors, and energy storage. In addition, we discuss some unresolved scientific and technological challenges related to the future prospects of this field.

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“…The uptake of various species was studied to assess the potential of the hydrogels for environmental applications (e.g., waste water purification [41][42][43][44][45][46][47]) or biomedical applications (e.g., wound dressings [3,[48][49][50][51][52]).…”

Section: Uptake and Release Of Species From Hydrogelsmentioning

confidence: 99%

Uptake and Release of Species from Carbohydrate Containing Organogels and Hydrogels

Pan

Roy

Haldar

et al. 2019

Gels

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Hydrogels are used for a variety of technical and medical applications capitalizing on their three-dimensional (3D) cross-linked polymeric structures and ability to act as a reservoir for encapsulated species (potentially encapsulating or releasing them in response to environmental stimuli). In this study, carbohydrate-based organogels were synthesized by reversible addition-fragmentation chain transfer (RAFT) polymerization of a β-D-glucose pentaacetate containing methacrylate monomer (Ac-glu-HEMA) in the presence of a di-vinyl cross-linker; these organogels could be converted to hydrogels by treatment with sodium methoxide (NaOMe). These materials were studied using solid state 13C cross-polarization/magic-angle spinning (CP/MAS) NMR, Fourier transform infrared (FTIR) spectroscopy, and field emission scanning electron microscopy (FE-SEM). The swelling of the gels in both organic solvents and water were studied, as was their ability to absorb model bioactive molecules (the cationic dyes methylene blue (MB) and rhodamine B (RhB)) and absorb/release silver nitrate, demonstrating such gels have potential for environmental and biomedical applications.

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Physico‐Chemical Processes

Abstract: This review is on the research literature published in 2016 related to the physico-chemical processes for water and wastewater treatment. The review is divided into granular and membrane filtration, sedimentation, coagulation/flocculation, flotation, oxidation, and adsorption.

Cited by 20 publications

References 77 publications

Poly(Acryloyl-l-Serine): A Reactive Polypeptide to Introduce Zwitterion and Amphiphilicity for Stimuli-Responsiveness and Gelability

Poly(Acryloyl-l-Serine): A Reactive Polypeptide to Introduce Zwitterion and Amphiphilicity for Stimuli-Responsiveness and Gelability

Two‐Dimensional Metal‐Organic Frameworks and Covalent Organic Frameworks

Uptake and Release of Species from Carbohydrate Containing Organogels and Hydrogels

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