A novel chitosan-urea encapsulated material for persulfate slow-release to degrade organic pollutants

Tang, Xuejiao; Yu, Congya; Yuan-yuan, Lei; Wang, Zhen; Wang, Cuiping; Wang, Jingang

doi:10.1016/j.jhazmat.2021.128083

Cited by 20 publications

(6 citation statements)

References 83 publications

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“…Moreover, the release profiles of both liposomes were similar under different pH conditions, indicating that the anchoring of SA-ODA did not affect the drug release. To explain the drug release mechanism, we tested four fitting models—zero-order kinetics, first-order kinetics, the Higuchi model, and the Ritger–Peppas model [ 39 ]—to fit the released datasets with Origin software 8 Pro ( Table S6, Supplementary Materials ). Among them, the release curves of ATG solution, ATG@Lip, and ATG@SA-Lip had the best fit with the first-order equation.…”

Section: Resultsmentioning

confidence: 99%

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Targeted Delivery of Arctigenin Using Sialic Acid Conjugate-Modified Liposomes for the Treatment of Breast Cancer

Liu,

He,

Feng

et al. 2024

Molecules

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Arctigenin (ATG) is a broad-spectrum antitumor drug with an excellent inhibitory effect on malignant tumors such as breast cancer, glioblastoma, liver cancer, and colon cancer. However, the clinical application of ATG is limited by its poor water solubility and quick hydrolysis in the liver, intestine, and plasma, which might hinder its application. Sialic acid (SA) recognizes selectin receptors overexpressed on the surface of tumor-associated macrophages. In this study, SA was conjugated with octadecylamine (ODA) to prepare SA-ODA, which was employed to prepare SA functionalized nanoliposomes (SA-Lip) to achieve breast cancer targeting. The formulations were finely optimized using the Box–Behnken design to achieve higher ATG loading. The size, ζ potential, entrapment efficiency, drug loading, and release behavior of ATG@SA-Lip were fully investigated in comparison with conventional ATG@Lip. The ATG@SA-Lip displayed more potent cytotoxicity and higher cellular internalization compared to ATG@Sol and ATG@Lip in both MCF7 and 4T1 cells. Notably, ATG@SA-Lip showed the lowest impact on the immune system. Our study demonstrates that SA-Lip has strong potential as a delivery system for the targeted delivery of ATG.

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Section: Resultsmentioning

confidence: 99%

“…der kinetics, the Higuchi model, and the Ritger-Peppas model [39]-to fit the released datasets with Origin software 8 Pro (Table S6, Supplementary Materials). Among them, the release curves of ATG solution, ATG@Lip, and ATG@SA-Lip had the best fit with the first-order equation.…”

Section: Characterization Of Nanoliposomesmentioning

confidence: 99%

Targeted Delivery of Arctigenin Using Sialic Acid Conjugate-Modified Liposomes for the Treatment of Breast Cancer

Liu,

He,

Feng

et al. 2024

Molecules

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“…In order to elucidate the release mechanism of citral molecules embedded in hydrogels, four release kinetic models including zero-order, first-order, Higuchi, and Ritger–Peppas were tested to fit the release curves. − The equations of four kinetic models are represented by eqs –. Y = k 0 t + Y 0 Y = k 1 ( 1 − e ( − k 2 t ) ) Y = k t 1 / 2 Y = k t t n where Y denotes the release rate of citral (%), t is the release time (min), k is the release rate constant, and n is the diffusional exponent.…”

Section: Methodsmentioning

confidence: 99%

Novel Double Cross-Linked Acrylic Acid/Bagasse Cellulose Porous Hydrogel for Controlled Release of Citral and Bacteriostatic Effects

Han

Zhu

Cheng

2023

ACS Appl. Mater. Interfaces

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In this study, double cross-linked acrylic acid/bagasse cellulose (AA/BC) porous hydrogels were first prepared using cold plasma (CP) technology instead of chemical initiators. The structure and properties of porous hydrogels, as well as the controlled release and bacteriostatic application as functional carriers, were investigated. Results showed that a novel double cross-linked hydrogel had been successfully synthesized by utilizing •OH and H+ produced during plasma discharge. The acrylic acid (AA) monomers were successfully grafted onto the main chains of bagasse cellulose (BC), forming a porous three-dimensional network structure. The AA/BC porous hydrogels showed excellent swelling levels and intelligent responses. The release of citral in hydrogel inclusion compounds embedded with citral was controlled by adjusting the pH, and the slow release period was about 2 days. The inclusion compounds presented strong bacteriostatic effects against Escherichia coli and Staphylococcus aureus, extending the shelf life of fruits for about 4 days. Therefore, it can be concluded that CP technology is considered to be an efficient and environmental-friendly initiation technology for preparing hydrogels. The potential application of hydrogel inclusion compounds in the food field is expanded.

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“…First-order and second-order kinetic models were selected to fit the PS@PW dynamic release, as shown in Equations ( 3) and ( 4) [6,35].…”

Section: Dynamic Release Kinetics Fitting Modelmentioning

confidence: 99%

“…Compared to other oxidants, PS is more effective and reliable as an oxidant in ISCO due to its ability to be applied across a wide range of pH levels [5]. In addition, the degradation process does not produce secondary contaminations and undesirable precipitates [6,7]. PS has a standard oxidation reduction potential of 2.01 V [8,9].…”

Section: Introductionmentioning

confidence: 99%

Dynamic Release Characteristics and Kinetics of a Persulfate Sustained-Release Material

Zhu,

Ji,

Hua

et al. 2023

Toxics

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Sustained-release materials are increasingly being used in the delivery of oxidants for in situ chemical oxidation (ISCO) for groundwater remediation. Successful implementation of sustained-release materials depends on a clear understanding of the mechanism and kinetics of sustained release. In this research, a columnar sustained-release material (PS@PW) was prepared with paraffin wax and sodium persulfate (PS), and column experiments were performed to investigate the impacts of the PS@PW diameter and PS/PW mass ratio on PS release. The results demonstrated that a reduction in diameter led to an increase in both the rate and proportion of PS release, as well as a diminished lifespan of release. The release process followed the second-order kinetics, and the release rate constant was positively correlated with the PS@PW diameter. A matrix boundary diffusion model was utilized to determine the PS@PW diffusion coefficient of the PS release process, and the release lifespan of a material with a length of 500 mm and a diameter of 80 mm was predicted to be more than 280 days. In general, this research provided a better understanding of the release characteristics and kinetics of persulfate from a sustained-release system and could lead to the development of columnar PS@PW as a practical oxidant for in situ chemical oxidation of contaminated aquifers.

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A novel chitosan-urea encapsulated material for persulfate slow-release to degrade organic pollutants

Cited by 20 publications

References 83 publications

Targeted Delivery of Arctigenin Using Sialic Acid Conjugate-Modified Liposomes for the Treatment of Breast Cancer

Targeted Delivery of Arctigenin Using Sialic Acid Conjugate-Modified Liposomes for the Treatment of Breast Cancer

Novel Double Cross-Linked Acrylic Acid/Bagasse Cellulose Porous Hydrogel for Controlled Release of Citral and Bacteriostatic Effects

Dynamic Release Characteristics and Kinetics of a Persulfate Sustained-Release Material

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