Adsorption of a non-steroidal anti-inflammatory drug onto MgAl/LDH-activated carbon composite – Experimental investigation and statistical physics modeling

Author(s):  
Pollyanna Vanessa Santos Lins ◽  
Daniely Carlos Henrique ◽  
Alessandra Honjo Ide ◽  
José Leandro da silva Duarte ◽  
Guilherme Luiz Dotto ◽  
...  
2017 ◽  
Vol 109 ◽  
pp. 117-123 ◽  
Author(s):  
Lotfi Sellaoui ◽  
Nesrine Mechi ◽  
Éder Cláudio Lima ◽  
Guilherme Luiz Dotto ◽  
Abdelmottaleb Ben Lamine

2019 ◽  
Vol 33 (2) ◽  
pp. 249-269 ◽  
Author(s):  
Zvezdelina Lyubenova Yaneva

The present study investigated the drug-carrier capacity of green activated carbon derived from fruit stones by steam-gas activation (ACSTA) towards the nonsteroidal anti-inflammatory drug (NSAID) ibuprofen (IBU), and assessed the host-guest interactions and mass transfer mechanism/s of the drug microencapsulation and in vitro release processes. The mass transfer studies outlined that the process of IBU encapsulation on ACSTA microparticles was predominantly controlled by intraparticle solid phase diffusion.


2020 ◽  
Vol 81 (7) ◽  
pp. 1432-1444 ◽  
Author(s):  
Nazli Ozcan ◽  
Didem Saloglu

Abstract In the present study, activated carbon/alginate (AC/ALG) beads were successfully synthesized with different AC:ALG ratios of 1.0–3.0 (w/v) and used for the adsorption of the nonsteroidal anti-inflammatory drug naproxen from wastewater. The beads were characterized by Fourier transform infrared spectroscopy (FT-IR), scanning electron microscopy (SEM), and Brunauer-Emmett-Teller (BET) analysis, and adsorbent dosage, initial pH, initial naproxen concentration, and contact time in removal efficiency were investigated. Maximum naproxen removal percentage was achieved using 350 mg of AC/ALG beads with a ratio of 3.0% (w/v) within six hours and naproxen removal performance was determined to be 98.0%. Freundlich, Temkin, and Dubinin–Radushkevich (D-R) isotherm models were fitted to the equilibrium data better than the Langmuir model. According to kinetics results, the equilibrium time for the AC/ALG beads was reached in four hours and the kinetic model was determined by the pseudo-second-order equation. The thermodynamic parameters were calculated and enthalpy of naproxen adsorption was found to be positive for all AC/ALG beads. After the adsorption process the beads can easily be regenerated by ethanol and reused within seven cycles.


Diabetes ◽  
2019 ◽  
Vol 68 (Supplement 1) ◽  
pp. 1167-P
Author(s):  
ANIL PAREEK ◽  
RAVI TEJRAJ MEHTA ◽  
SHRUTI DHARMADHIKARI ◽  
KUMAR BHASKAR NAIDU

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