Micro-/mesoporous carbons for controlled release of antipyrine and indomethacin
Abstract
Here, we have demonstrated the potential of meso- and microporous carbons in controlled release applications and targeted oral drug delivery. We have employed two mesoporous and two microporous carbons for the sustained release of one water-soluble drug (antipyrine) and one water-insoluble drug (indomethacin), using these as models to examine the controlled release characteristics. The micro-/mesoporous carbons were characterized as having a BET surface area of 372–2251 m2 g–1 and pore volume 0.63–1.03 cm3 g–1. The toxicity studies with E. coli bacterial cells did not reveal significant toxicity, which is in accordance with our previous studies on human cells with similar materials. Mucin adsorption tests with type III pork mucin demonstrated 20–30% mucin adsorption by the carbon samples and higher mucin adsorption could be attributed to higher surface area and more oxygen functionalities. Antipyrine and indomethacin loading was 6–78% in these micro-/mesoporous carbons. The signatures in thermogravimetric studies revealed the presence of drug molecules within the porous moieties of the carbon. The partial shifting of the decomposition peak of the drug adsorbed within the carbon pores was caused by the confinement of drug molecules within the narrow pore space of the carbon. The release profiles of both drugs were examined inmore »
- Authors:
-
- Widener Univ., Chester, PA (United States)
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- Fayetteville State Univ., Fayetteville, NC (United States)
- Publication Date:
- Research Org.:
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Center for Nanophase Materials Sciences (CNMS)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1325496
- Grant/Contract Number:
- AC05-00OR22725
- Resource Type:
- Journal Article: Accepted Manuscript
- Journal Name:
- RSC Advances
- Additional Journal Information:
- Journal Volume: 5; Journal Issue: 30; Journal ID: ISSN 2046-2069
- Publisher:
- Royal Society of Chemistry
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; 59 BASIC BIOLOGICAL SCIENCES
Citation Formats
Saha, Dipendu, Moken, Tara, Chen, Jihua, Hensley, Dale K., Delaney, Kristen, Hunt, Marcus A., Nelson, Karl, Spurri, Amada, Benham, Lauren, Brice, Robin, and Azoro, Martina. Micro-/mesoporous carbons for controlled release of antipyrine and indomethacin. United States: N. p., 2015.
Web. doi:10.1039/C5RA00251F.
Saha, Dipendu, Moken, Tara, Chen, Jihua, Hensley, Dale K., Delaney, Kristen, Hunt, Marcus A., Nelson, Karl, Spurri, Amada, Benham, Lauren, Brice, Robin, & Azoro, Martina. Micro-/mesoporous carbons for controlled release of antipyrine and indomethacin. United States. https://doi.org/10.1039/C5RA00251F
Saha, Dipendu, Moken, Tara, Chen, Jihua, Hensley, Dale K., Delaney, Kristen, Hunt, Marcus A., Nelson, Karl, Spurri, Amada, Benham, Lauren, Brice, Robin, and Azoro, Martina. 2015.
"Micro-/mesoporous carbons for controlled release of antipyrine and indomethacin". United States. https://doi.org/10.1039/C5RA00251F. https://www.osti.gov/servlets/purl/1325496.
@article{osti_1325496,
title = {Micro-/mesoporous carbons for controlled release of antipyrine and indomethacin},
author = {Saha, Dipendu and Moken, Tara and Chen, Jihua and Hensley, Dale K. and Delaney, Kristen and Hunt, Marcus A. and Nelson, Karl and Spurri, Amada and Benham, Lauren and Brice, Robin and Azoro, Martina},
abstractNote = {Here, we have demonstrated the potential of meso- and microporous carbons in controlled release applications and targeted oral drug delivery. We have employed two mesoporous and two microporous carbons for the sustained release of one water-soluble drug (antipyrine) and one water-insoluble drug (indomethacin), using these as models to examine the controlled release characteristics. The micro-/mesoporous carbons were characterized as having a BET surface area of 372–2251 m2 g–1 and pore volume 0.63–1.03 cm3 g–1. The toxicity studies with E. coli bacterial cells did not reveal significant toxicity, which is in accordance with our previous studies on human cells with similar materials. Mucin adsorption tests with type III pork mucin demonstrated 20–30% mucin adsorption by the carbon samples and higher mucin adsorption could be attributed to higher surface area and more oxygen functionalities. Antipyrine and indomethacin loading was 6–78% in these micro-/mesoporous carbons. The signatures in thermogravimetric studies revealed the presence of drug molecules within the porous moieties of the carbon. The partial shifting of the decomposition peak of the drug adsorbed within the carbon pores was caused by the confinement of drug molecules within the narrow pore space of the carbon. The release profiles of both drugs were examined in simulated gastric fluid (pH = 1.2) and in three other release media with respective pH values of 4.5, 6.8 and 7.4, along with varying residence times to simulate the physiological conditions of the stomach, duodenum, small intestine and colon, respectively. All the release profiles manifested diffusion controlled sustained release that corroborates the effective role of micro-/mesoporous carbons as potential drug carriers.},
doi = {10.1039/C5RA00251F},
url = {https://www.osti.gov/biblio/1325496},
journal = {RSC Advances},
issn = {2046-2069},
number = 30,
volume = 5,
place = {United States},
year = {Tue Feb 24 00:00:00 EST 2015},
month = {Tue Feb 24 00:00:00 EST 2015}
}
Web of Science
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