POSS hybrid hydrogels: A brief review of synthesis, properties and applications

Liu, Siju; Guo, Renqi; Li, Chuang; Lu, Cuifen; Yang, Guichun; Wang, Feiyi; Nie, Junqi; Ma, Chao; Gao, Meng

doi:10.1016/j.eurpolymj.2020.110180

Cited by 58 publications

(45 citation statements)

References 105 publications

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“…Several reviews and books have already been published on the synthesis, characterization and functionalization of POSS molecules. Therefore, a complete overview of this topic is out of the scope of this review [3][4][5]7,9,12]. Nevertheless, we will focus on several practical approaches recently used for POSS functionalization with biomedical applications.…”

Section: Functionalization Of Possmentioning

confidence: 99%

“…In the past decades, POSS have been used as building blocks, crosslinkers, and nanofillers to afford hybrid materials with improved stability, mechanical properties and chemical resistance [10]. POSS have great potential in various fields such as catalysis, sensing, photoelectronic, energy, and biomedicine [3,[11][12][13][14][15]. In this review, we will emphasize the most recent advances on the use of POSS in biomedicine, with particular focus on drug delivery, photodynamic therapy and bioimaging.…”

Section: Introductionmentioning

confidence: 99%

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Use of Polyhedral Oligomeric Silsesquioxane (POSS) in Drug Delivery, Photodynamic Therapy and Bioimaging

2021

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Polyhedral oligomeric silsesquioxanes (POSS) have attracted considerable attention in the design of novel organic-inorganic hybrid materials with high performance capabilities. Features such as their well-defined nanoscale structure, chemical tunability, and biocompatibility make POSS an ideal building block to fabricate hybrid materials for biomedical applications. This review highlights recent advances in the application of POSS-based hybrid materials, with particular emphasis on drug delivery, photodynamic therapy and bioimaging. The design and synthesis of POSS-based materials is described, along with the current methods for controlling their chemical functionalization for biomedical applications. We summarize the advantages of using POSS for several drug delivery applications. We also describe the current progress on using POSS-based materials to improve photodynamic therapies. The use of POSS for delivery of contrast agents or as a passivating agent for nanoprobes is also summarized. We envision that POSS-based hybrid materials have great potential for a variety of biomedical applications including drug delivery, photodynamic therapy and bioimaging.

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Section: Functionalization Of Possmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Use of Polyhedral Oligomeric Silsesquioxane (POSS) in Drug Delivery, Photodynamic Therapy and Bioimaging

2021

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“…In spite of the large attention paid to the effects induced by the presence of polyhedral oligomeric silsesquioxanes (POSSs), their stabilization activities were scarcely investigated. The influence of structured polymer materials [ 17 , 18 , 19 ], hybrid composition [ 20 , 21 , 22 ], preparation conditions [ 23 , 24 ] are the main directions that are envisaged by the majority of assays. Unfortunately, the contribution of POSS filler to the delay of oxidation in polymer materials was randomly reported [ 25 , 26 ].…”

Section: Introductionmentioning

confidence: 99%

Stabilization Effects of Natural Compounds and Polyhedral Oligomeric Silsesquioxane Nanoparticles on the Accelerated Degradation of Ethylene-Propylene-Diene Monomer

Zaharescu¹,

Blanco

2021

Molecules

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In this work the analysis on the stabilization activities of some natural antioxidants (rosemary extract, capsaicin, quercetin or oleanolic acid) is presented. A similar contribution of an inorganic structure—polyhedral oligomeric silsesquioxane (POSS) nanoparticles—is also evaluated. The stabilization effects on the oxidation protection were investigated for several formulations based on ethylene-propylene-diene-terpolymer (EPDM). The samples were examined in pristine state or after γ-irradiation, when the accelerated degradation scission of polymer macromolecules followed by the mitigation of oxidation. Three evaluation procedures: chemiluminescence, FTIR spectroscopy and thermal analysis were applied for the characterization of stability efficiency. The delaying effect of oxidative aging in EPDM matrix is illustrated by the values of activation energy, which are correlated with the type and concentration of embedded compounds. The durability of studied EPDM formulations is discussed for the assessment of material life. The improved behavior of structured hybrids useful for the optimization application regimes is essentially based on the antioxidant properties of polyphenolic components in the cases of natural antioxidants or on the penetration of free radical intermediates into the free volumes of POSS.

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“…Due to the special composition and structure, PSQ has many unique and excellent properties (Tang et al, 2013;Rathnayake et al, 2021), for instance, the organic groups connected with Si can be connected with other groups through different chemical reactions (Wang et al, 2014). In addition, PSQ has distinct corrosion resistance, thermal stability, chemical reactivity Liu et al, 2021), and can be used in semiconductor materials, catalysis, adsorption, and other fields (Wu et al, 2018;Park et al, 2020;Kong et al, 2021). PSQ as an adsorbent commonly has high adsorption capacity and adsorption rate (Sun et al, 2014;Wang et al, 2020b).…”

Section: Introductionmentioning

confidence: 99%

Amino-Thiol Bifunctional Polysilsesquioxane/Carbon Nanotubes Magnetic Composites as Adsorbents for Hg(II) Removal

Zhang

et al. 2021

Front. Environ. Chem.

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Amino-thiol bifunctional polysilsesquioxane/carbon nanotubes (PSQ/CNTs) magnetic composites were prepared by sol-gel method with two types of functional siloxanes coating on carboxyl CNTs simultaneously. The composites were served as efficient adsorbents for removing Hg(II) in aqueous solution and the adsorption properties were investigated systematically. The optimal pH of bifunctional composites for Hg(II) removal is at pH 4.5. The thermodynamic fitting curves are more consistent with the Langmuir model and the adsorption capacities of the bifunctional composites for Hg(II) varied from 1.63 to 1.94 mmol g−1 at 25°C according to the Langmuir model. The kinetics curves are more fitted to the pseudo-second-order model and the composites could selectively adsorb Hg(II) in a series of binary metal ions solution. The elution regeneration tests showed that the adsorption rate could still reach 78% after repeat cycle three times. It is expected that the bifunctional PSQ/CNTs magnetic composites can be potentially applied to remove low concentration Hg(II) from waste water.

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POSS hybrid hydrogels: A brief review of synthesis, properties and applications

Cited by 58 publications

References 105 publications

Use of Polyhedral Oligomeric Silsesquioxane (POSS) in Drug Delivery, Photodynamic Therapy and Bioimaging

Use of Polyhedral Oligomeric Silsesquioxane (POSS) in Drug Delivery, Photodynamic Therapy and Bioimaging

Stabilization Effects of Natural Compounds and Polyhedral Oligomeric Silsesquioxane Nanoparticles on the Accelerated Degradation of Ethylene-Propylene-Diene Monomer

Amino-Thiol Bifunctional Polysilsesquioxane/Carbon Nanotubes Magnetic Composites as Adsorbents for Hg(II) Removal

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