Functionalized polyoxometalate microspheres ensure selective adsorption of phosphoproteins and glycoproteins

Wang, Xu; Cao, Jian-Fang; Lin, Yanna; Shu, Yang; Wang, Jianhua

doi:10.1039/d1cc00325a

Cited by 17 publications

(8 citation statements)

References 36 publications

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“…In addition, XPS (Thermo, USA) was used to analyze the adsorption mechanism of this adsorption process between CMC/PEI-70000-4.5g and ACT. [35][36][37]…”

Section: Instrumentsmentioning

confidence: 99%

High‐Affinity Adsorbent with Honeycomb Structure for Efficient Acteoside Separation

Feng

Hao

et al. 2023

Macro Chemistry & Physics

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In this study, a series of adsorbents with honeycomb structure that hyperbranched polyethyleneimine (PEI) functionalized carboxymethyl chitosan (CMC/PEI) are successfully designed for acteoside (ACT) separation. The microstructures of adsorbents are adjusted to optimum by changing the molecular weight and addition amount of PEI. The scanning electron microscope (SEM) and N 2 adsorption-desorption experiment results show that CMC/PEI-70000-4.5g presents the honeycomb structure with the highest specific surface area and the largest pore volume. The honeycomb structure has the multiple internal cavities, which provide sufficient space for accommodating and adsorbing ACT molecules, improving the adsorption capacity. Furthermore, this work introduces PEI on the inner and outer surface of pores and forms an amino layer, which has high-affinity for ACT molecules and realizes the excellent selectivity. Therefore, CMC/PEI-70000-4.5g shows the highest adsorption capacity of 125.67 mg g −1 and selectivity of 5.38. The adsorption process of ACT can be fitted by pseudo-second-order kinetics, intraparticle diffusion, and Langmuir isotherm models. High-affinity (hydrogen bond, hydrophilic attraction, and Van der Waals force) is proposed as the main driving forces for adsorption between CMC/PEI-70000-4.5g and ACT. This work provides a strategy to synthesize the adsorbents with honeycomb structure for bioactive components separation from natural products.

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“…In addition, XPS (Thermo, USA) was used to analyze the adsorption mechanism of this adsorption process between CMC/PEI-70000-4.5g and ACT. [35][36][37]…”

Section: Instrumentsmentioning

confidence: 99%

High‐Affinity Adsorbent with Honeycomb Structure for Efficient Acteoside Separation

Feng

Hao

et al. 2023

Macro Chemistry & Physics

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“…[PW9O34] 9-(PW9) via organosilane, which resulted in the formation of PW9-Si-APBA microspheres [115] . The metal-oxo moieties in POMs can be bound to the phosphate groups of phosphoproteins via π-π interactions, while the boronic acid group specifically bound to the glycans of glycoproteins.…”

Section: Molecular Recognitionmentioning

confidence: 99%

Latest progress in covalently modified polyoxometalates-based molecular assemblies and advanced materials

Zhang

Zhao

et al. 2022

Polyoxometalates

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Covalently modified polyoxometalates (POMs), which benefit from the synergistic effect between POMs and covalently grafted moieties, have received increasing attention in various fields. Recent studies on the covalently modified POMs mainly focus on the function-directed POMs assemblies. In this review, we summarized the latest progress (2017-2022) of covalently modified POMs from functional perspective, which can be classified as assembly chemistry, photochemistry, electrochemistry, homogeneous/heterogeneous catalysis and biological application.The roles of POMs and covalently grafted moieties in these hybrids, especially the rational design for the specific application were considered and emphasized.

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“…Cryogenic optic thermal probes made of polyoxomolybdate basic elements containing TbIII and EuIII ions, for example, have been explored. Moreover, the luminescence properties of RE-combining POMs are significantly delicate to the chemical media [59,60].…”

Section: Principal Properties Of Pomsmentioning

confidence: 99%

Application of Polyoxometalate-based composites for sensor systems: A review

Khalilpour

Shafiee

Darbandi

et al. 2021

jcc

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Functionalized polyoxometalate microspheres ensure selective adsorption of phosphoproteins and glycoproteins

Abstract: Lacunary polyoxometalate (POM), [PW9O34]9−, grafts with boronic acid group via organosilane bridge and assemble to microspheres, PW9-Si-APBA. The oxygen-rich and hydrophilic surface of POM facilitates the binding of phosphate group...

Cited by 17 publications

References 36 publications

High‐Affinity Adsorbent with Honeycomb Structure for Efficient Acteoside Separation

High‐Affinity Adsorbent with Honeycomb Structure for Efficient Acteoside Separation

Latest progress in covalently modified polyoxometalates-based molecular assemblies and advanced materials

Application of Polyoxometalate-based composites for sensor systems: A review

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