Preparation and adsorption behavior of berberine hydrochloride imprinted polymers by using silica gel as sacrificed support material

Li, Hui; Li, Yunwei; Li, Zhiping; Peng, Xiyang; Li, Yanan; Gui, Li; Tan, Xianzhou; Gong-xi, Chen

doi:10.1016/j.apsusc.2011.12.104

Cited by 37 publications

(9 citation statements)

References 22 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The FTIR spectra of the drugs (D, E) display several characteristic peaks, namely at 1500 and 1600 cm À1 , associated with the benzene ring, and at 1380 cm À1 , related to the -CH 3 bond stretching vibrations, which are absent from the pure BC lm. 40 In the composites, no additional peaks attributable to the formation of a complex appeared, but variations in the relative intensities of the characteristic peaks for cellulose and the drug can be observed. Consequently, between the two components without the formation of covalent bonds, the drug delivery system, therefore, only involved noncovalent bonding forces.…”

Section: Atr-ftirmentioning

confidence: 92%

Nano-cellulose 3D-networks as controlled-release drug carriers

et al. 2013

View full text Add to dashboard Cite

Bacterial cellulose (BC) membranes are used as the carrier for berberine hydrochloride and berberine sulphate to produce a new controlled release system. Release studies and transdermal experiments were carried out in vitro. Carrier BC can significantly extend the drug release time, in contrast to existing commercial carriers. Freeze-dried BC membranes 10 mm thick were optimized for drug delivery. The lowest release rate was in simulated gastric fluid (SGF) or in H 2 SO 4 solution, the highest in simulated intestinal fluid (SIF) and an intermediate rate was found in alkaline conditions. The release curves closely followed the Ritger-Peppas model with free diffusion the most prominent mechanism. Scanning electron microscopy (SEM) analysis demonstrated that BC fibers were swollen in acid and base conditions. 1 H high-resolution magic angle spinning nuclear magnetic resonance ( 1 H HRMAS NMR) diffusion-ordered spectroscopy (DOSY) analysis showed that there was an interaction between the drugs and BC. The structure of BC, the media and the solubility of the drug all influenced the sustainedrelease behavior. The results from the release studies, the electron micrographs, and the transdermal experiments were in good agreement.

show abstract

Section: Atr-ftirmentioning

confidence: 92%

Nano-cellulose 3D-networks as controlled-release drug carriers

et al. 2013

View full text Add to dashboard Cite

show abstract

“…Many methods have been used for the removal of berberine, including Fenton oxidation, 9 electrochemistry method, 10 electrocoagulation, 6 biodegradation, 11 and adsorption method. 12 Among these, the adsorption method is a promising technology for the removal of berberine from water due to its simple operation, high removal efficiency, and low cost. 13 The adsorbents used for berberine removal mainly include mesoporous carbon, 2,14 resin, 3,15 and some minerals.…”

Section: Introductionmentioning

confidence: 99%

Removal of Berberine from Wastewater by MIL-101(Fe): Performance and Mechanism

Wang

Liu

et al. 2020

ACS Omega

View full text Add to dashboard Cite

The water contamination from pharmaceuticals and personal care products (PPCPs) has attracted worldwide attention in recent years because of its threat to public health. Berberine is a typical anti-inflammatory medicine and berberine wastewater is difficult to be treated due to its high toxicity, poor biodegradability, and high acidity. Metal–organic frameworks would be a good choice to remove berberine from wastewater due to its advantages of high specific surface area, ultrahigh porosity, and structural and functional tunability. In this study, MIL-101(Fe) was synthesized and used for the removal of berberine from water. Experimental results indicated that MIL-101(Fe) showed promising characteristics when berberine was adsorbed in acidic wastewater. The high concentration of chloride in berberine wastewater could promote the adsorption of berberine by MIL-101(Fe). Fitting of batch equilibrium data showed that MIL-101(Fe) had a maximum adsorption capacity of 163.93 mg/g for berberine removal at pH 7, and the berberine sorption on MIL-101(Fe) followed the pseudo-second-order model. Furthermore, the associate mechanism for berberine removal was proposed by characterizing the material and theoretical calculation. The X-ray power diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), and X-ray photoelectron spectroscopy (XPS) analysis showed that no chemical reaction occurred during the adsorption of berberine by MIL-101(Fe). Also, the theoretical calculation results indicated that π–π interactions may play the main role in the adsorption of berberine onto MIL-101(Fe). The findings of this study suggest that MIL-101(Fe) is a promising sorbent for berberine removal from wastewater.

show abstract

“…MIPs can also be used in extraction techniques , with good extraction efficiency, stability and selectivity, which are promising to apply in complex herbs and biological samples. Two kinds of berberine‐imprinted polymers were prepared by conventional polymerization method and the rebinding experiments were carried out with ground particles . However, selectivity was achieved in chloroform and acetonitrile medium, which limited the application of the MIPs for extraction.…”

Section: Introductionmentioning

confidence: 99%

Selective and sensitive determination of protoberberines by capillary electrophoresis coupled with molecularly imprinted microextraction

Zhang

Chen

2015

J. Sep. Science

View full text Add to dashboard Cite

In this work, we developed a novel molecularly imprinted solid-phase microextraction with capillary electrophoresis method for the selective extraction and determination of protoberberines in complicated samples. The imprinted monolith was prepared in a micropipette tip-based device by using acrylamide as the functional monomer, ethyleneglyoldimethacrylate as the cross-linker and dimethylsulfoxide as the porogen, and exhibited an imprinting factor of 2.41 to berberine, 2.36 to palmatine and 2.38 to jatrorrhizine. Good capillary electrophoresis separation was achieved by using 20 mM phosphate buffer at pH 7 as running buffer with the addition of organic modifier of 10% methanol. Parameters such as sample pH value, sample flow rate and sample volume were investigated for imprinted monolith-based solid-phase microextraction. An imprinted solid-phase microextraction with capillary electrophoresis method was developed, the method showed a wide linear range (0.3-50 μg/mL), good linearity (R ≥ 0.9947) and good reproducibility (relative standard deviations ≤ 0.73%), the limit of detection was as low as 0.1 μg/mL, which was lower than some reported methods based on capillary electrophoresis for protoberberines. The method has been applied for determination of three common protoberberines in Cortex Phellodendri Chinensis, by using a molecularly imprinted monolith as the selective sorbent, most of the matrices in the Cortex Phellodendri Chinensis sample were removed and three protoberberines were selectively enriched and well determined.

show abstract

Preparation and adsorption behavior of berberine hydrochloride imprinted polymers by using silica gel as sacrificed support material

Cited by 37 publications

References 22 publications

Nano-cellulose 3D-networks as controlled-release drug carriers

Nano-cellulose 3D-networks as controlled-release drug carriers

Removal of Berberine from Wastewater by MIL-101(Fe): Performance and Mechanism

Selective and sensitive determination of protoberberines by capillary electrophoresis coupled with molecularly imprinted microextraction

Contact Info

Product

Resources

About