Film Diffusion Mechanism of Methyl Parathion in Biopolymers: Kinetics and Thermodynamic Equilibrium

Sadasivam, Senthilkumaar; Kandasamy, Krishna S.; Ponnusamy, Kalaamani; Nagarajan, G.; Kang, Tae Won

doi:10.1021/je200424x

Cited by 8 publications

(1 citation statement)

References 30 publications

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“…5A, 40 min was needed to reach adsorption equilibrium for MIP2; in the same adsorption time, the binding capacity of MIP2 was remarkably higher than that of NIP2, indicating that the uniform spherical core-shell structure of MIPs is favorable for mass transfer and binding capacity. Furthermore, the dynamic binding was investigated using different models including pseudo-rst-order, pseudosecond-order, Elovich and intra-particle diffusion, [28][29][30] as displayed in Fig. 5B, and the obtained tting results are summarized in Table S5.…”

Section: Binding Studies Of the Cs-mipsmentioning

confidence: 99%

Uniform core–shell molecularly imprinted polymers: a correlation study between shell thickness and binding capacity

et al. 2014

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Core-shell molecularly imprinted polymers (CS-MIPs) have aroused increasing interest owing to their easy accessibility and favorable mass transfer. Herein, we explore the correlation between shell thickness and binding capacity by using Sudan I as template molecule to prepare different CS-MIPs at the surface of carboxyl polystyrene through emulsion polymerization with a two-step temperature-rising process. Extensive characterization was performed using techniques such as SEM/TEM, FT-IR, BET, and TGA. Main factors were systematically studied such as the amount of prepolymer solution, the amount of SDS, and the temperature step. Under the optimized conditions, CS-MIPs with a shell thickness of 2.60 mm presented the highest binding capacity of 30.1 mmol g À1 and the most rapid mass transfer rate. A uniform sphere model was constructed, and it was found that template molecules located in the spherical MIPs with a diameter of 5.20 mm will be completely eluted, thereby attaining the maximum binding capacity.The static adsorption isotherm followed the Langmuir-Freundlich adsorption model, and the fast kinetics obeyed the pseudo-second-order kinetics model. High recognition specificity for Sudan I with respect to its analogues was displayed, with an imprinting factor of 2.7. The establishment of a critical value of shell thickness provides new insights into the preparation methodology and molecular recognition mechanism of core-shell imprinted polymers.

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Section: Binding Studies Of the Cs-mipsmentioning

confidence: 99%

Uniform core–shell molecularly imprinted polymers: a correlation study between shell thickness and binding capacity

et al. 2014

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Development of morphine analgesia using biocompatible synthesized molecular imprinted hydrogel based on tragacanth gum

Hassanzadeh,

Ghaemy,

Ahmadi

et al. 2024

J of Applied Polymer Sci

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A novel molecular imprinted hydrogel using tragacanth gum (MITMIH) was synthesized for extending morphine analgesic efficacy by controlled release. The characterized MITMIH was used as a new morphine carrier that can increase analgesic time window after its single injection in mice. During in vitro optimization, the MITMIH showed maximum adsorption capacity (~113 mg g−1) at pH = 6.5 after 20 min immersion (400 μM initial morphine concentration, 10 mg MITMIH). During in vivo test, we examined the analgesic effect in mice by dissolving morphine in physiologic saline or by loading on MITMIH. The results of a single injection revealed that morphine‐loaded MITMIH shifted the time profile of morphine analgesia from 123.4 to 257.6 min. This indicates almost 100% efficacy in the controlled release of the drug during 5 h after the injection. Furthermore, cytotoxicity and mitochondrial membrane potential test was evaluated against normal rat kidney epithelial (NRK) and Rat Dermal Fibroblasts (RDF). The results confirmed that the MITMIH could be considered as a potential carrier increasing length of morphine analgesia after the first single injection without any cytotoxicity and negative effect on cell tissues. This may in turn reduce repeated use of the drug to achieve satisfactory analgesia in patients with chronic pain.

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Maize cob (Zea mays) as natural biomass sorbent for crude oil biosorptive removal from contaminated seawater: Taguchi process optimization and biosorptive removal mechanism

Eboibi,

Ogbue,

Udochukwu

et al. 2023

Environ Monit Assess

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Film Diffusion Mechanism of Methyl Parathion in Biopolymers: Kinetics and Thermodynamic Equilibrium

Cited by 8 publications

References 30 publications

Uniform core–shell molecularly imprinted polymers: a correlation study between shell thickness and binding capacity

Uniform core–shell molecularly imprinted polymers: a correlation study between shell thickness and binding capacity

Development of morphine analgesia using biocompatible synthesized molecular imprinted hydrogel based on tragacanth gum

Maize cob (Zea mays) as natural biomass sorbent for crude oil biosorptive removal from contaminated seawater: Taguchi process optimization and biosorptive removal mechanism

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