Azo resorcin[4]calixpyrrole grafted Amberlite XAD-2 polymer: an efficient solid phase extractant for separation and preconcentration of La(III) and Ce(III) from natural geological samples

Gupte, Hrishikesh S.; Bhatt, Keyur D.; Jain, V. K.; Vyas, Disha J.; Makwana, Bharat A.

doi:10.1007/s10847-014-0468-5

Cited by 7 publications

(2 citation statements)

References 41 publications

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“…Hyperbilirubinemia causes hemolytic or hepatocellular jaundice and selectively affects the central nervous system, which results in cerebral palsy, mental retardation, hearing loss, epilepsy, and even death . To remove bilirubin from a patient’s blood, researchers have employed many kinds of adsorbents, such as mesoporous silica, activated carbon, ,− resins, − or carbon nanotubes, − , for application in hemoperfusion. Meanwhile, many modified methods have been used to improve the adsorbing properties of removing bilirubin.…”

Section: Introductionmentioning

confidence: 99%

Thermoresponsive Self-Assembled β-Cyclodextrin-Modified Surface for Blood Purification

Liu

Zhong

Chen

et al. 2017

ACS Biomater. Sci. Eng.

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For patients with liver failure, bilirubin (BR) is one of the endogenous toxins in their blood. Although blood purification can remove the bilirubin from the body in clinics, the detoxification system needs to be improved, and the cost needs to be decreased. In the present study, we developed a recyclable model surface that can strongly remove bilirubin. We first prepared adamantane (Ad) on a model gold surface by self-assembly. Then, we integrated the β-cyclodextrin dimer (CDD) onto the surface with host−guest interactions between one of the CD cavities in the CDD and Ad. We characterized the surface with XPS, static contact angle measurements, and AFM. In addition, we employed QCM-D to characterize the preparation process as well as the detoxification of the surface. We demonstrated that this modified surface could strongly adsorb bilirubin through host−guest interactions between the CD cavities in the CDD and bilirubin and that the detoxification was improved 1.7 times (compared to the surface only with Ad). Interestingly, after characterization with QCM-D, this surface could be recycled due to the thermoresponsive property of the host−guest interaction between the CDD and Ad. After adsorbing the toxin and increasing the temperature to 45 °C, the CDD with bilirubin could be removed from the surface. Then, the refreshed surface with CDD could be prepared again at room temperature. This cycle could be repeated at least 3 times. Additionally, during each cycle, the modified surface exhibited good detoxification to bilirubin. This modified surface also showed strong resistance to plasma proteins, decreasing the adsorption of human serum albumin (HSA) and fibrinogen (Fg). An in vitro platelet adhesion assay showed that the adhesion of the platelets on the modified surface decreased and that the platelets were in an inactivated state. The hemolysis assay showed that this surface exhibited no hemolysis activity in the samples to red blood cells (RBCs). The CCK-8 assay showed that this surface had negligible cytotoxicity to L929 cells. This work has taken advantage of the host−guest self-assembly between β-CD and BR/Ad for special recognizing adsorption, as well as the thermoresponse of β-CD-Ad inclusion for recyclable application, and these results demonstrate that this technology has great potential for removing bilirubin and decreasing clinic costs.

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Section: Introductionmentioning

confidence: 99%

Thermoresponsive Self-Assembled β-Cyclodextrin-Modified Surface for Blood Purification

Liu

Zhong

Chen

et al. 2017

ACS Biomater. Sci. Eng.

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“…resorcinarene octa-o-methoxy resorcin[4]arene Amberlite XAD-4 polymeric chelating resin[24] -16-octa carboxymethyl-c-methyl[26] ]pyrrole-Amberlite XAD-2[30] DEHPA-Amberlite XAD-7…”

mentioning

confidence: 99%

بررسی پارامترهای مؤثر بر فرایند جذب لانتانیم و سریم از محلول‌های آبی توسط رزین تبادل یون 7Amberlite XAD- آغشته شده با استخراج‌کننده DEHPA

یاراحمدی¹,

زرندی²,

خانی³

2022

مجله علوم و فنون هسته ای

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In This study, an absorbent consisting of DEHPA impregnated onto Amberlite XAD-7 resin was prepared and used for the adsorption of Ce (ΙΙΙ) and La(ΙΙΙ) ions from aqueous solution. The absorbent (XAD-7 + DEHPA) was charaterized by SEM and FTIR analysis Techniques. Several influential variables such as, contact time, pH and temperature were studied in batch mode of operation. Th results showed that the optimum adsorption condition were acjieved at pH=6, optimum amount of absorbent and the equilibrium time equal to 0.6 gr and 180 min, respectively. According to the results the adsorption percentage of cerium and lanthanum ions onto the aforementioned resin were 99.99%, 78.76% respectively. Various isotherms models such as Langmuir, Freundlich, Temkin and Dubinin-Radushkevich were used in 25°C to analyze the equilibrium isotherm data and results showed that Langmuir model had a better agreement with the experimental data. The maximum adsorption capacity of the resin for cerium and Lanthanum ions were 8.28 mg.g -1 , 5.52 mg.g -1 respectively. The kinetic data were fitted to pesudo-frist-order, pesudo-second-order and Intra particle diffusion models. Based on the results, the pesudo-frist-order model and Intra particle diffusion model described the experimental data as well. Thermodynamic parameters of adsorption such as ΔHº, ΔS°, ΔG° were calcutated. Positive ΔHº and negative ΔG° were indicative of the endothermic and spontaneous nature of the adsorption. The aforementioned resin shows the stability during the five cycles of adsorption-desorption and it's degradation was less than 3%.

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Application of central composite design for optimization of preconcentration and determination of La (III) ion in water samples using the SBA-15-HESI and SBA-15-HESI-Fe 3 O 4 -NPs sorbents

Dashtian

Zare‐Dorabei

Jafarinia

et al. 2017

Journal of Environmental Chemical Engineering

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Azo resorcin[4]calixpyrrole grafted Amberlite XAD-2 polymer: an efficient solid phase extractant for separation and preconcentration of La(III) and Ce(III) from natural geological samples

Cited by 7 publications

References 41 publications

Thermoresponsive Self-Assembled β-Cyclodextrin-Modified Surface for Blood Purification

Thermoresponsive Self-Assembled β-Cyclodextrin-Modified Surface for Blood Purification

بررسی پارامترهای مؤثر بر فرایند جذب لانتانیم و سریم از محلول‌های آبی توسط رزین تبادل یون 7Amberlite XAD- آغشته شده با استخراج‌کننده DEHPA

Application of central composite design for optimization of preconcentration and determination of La (III) ion in water samples using the SBA-15-HESI and SBA-15-HESI-Fe 3 O 4 -NPs sorbents

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