1
|
Weld ED, McGowan I, Anton P, Fuchs EJ, Ho K, Carballo-Dieguez A, Rohan LC, Giguere R, Brand R, Edick S, Bakshi RP, Parsons T, Manohar M, Seigel A, Engstrom J, Elliott J, Jacobson C, Bagia C, Wang L, Al-khouja A, Hartman DJ, Bumpus NN, Spiegel HML, Marzinke MA, Hendrix CW. Tenofovir Douche as HIV Preexposure Prophylaxis for Receptive Anal Intercourse: Safety, Acceptability, Pharmacokinetics, and Pharmacodynamics (DREAM 01). J Infect Dis 2024; 229:1131-1140. [PMID: 38019657 PMCID: PMC11011183 DOI: 10.1093/infdis/jiad535] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2023] [Revised: 11/14/2023] [Accepted: 11/27/2023] [Indexed: 12/01/2023] Open
Abstract
BACKGROUND Despite highly effective HIV preexposure prophylaxis (PrEP) options, no options provide on-demand, nonsystemic, behaviorally congruent PrEP that many desire. A tenofovir-medicated rectal douche before receptive anal intercourse may provide this option. METHODS Three tenofovir rectal douches-220 mg iso-osmolar product A, 660 mg iso-osmolar product B, and 660 mg hypo-osmolar product C-were studied in 21 HIV-negative men who have sex with men. We sampled blood and colorectal tissue to assess safety, acceptability, pharmacokinetics, and pharmacodynamics. RESULTS The douches had high acceptability without toxicity. Median plasma tenofovir peak concentrations for all products were several-fold below trough concentrations associated with oral tenofovir disoproxil fumarate (TDF). Median colon tissue mucosal mononuclear cell (MMC) tenofovir-diphosphate concentrations exceeded target concentrations from 1 hour through 3 to 7 days after dosing. For 6-7 days after a single product C dose, MMC tenofovir-diphosphate exceeded concentrations expected with steady-state oral TDF 300 mg on-demand 2-1-1 dosing. Compared to predrug baseline, HIV replication after ex vivo colon tissue HIV challenge demonstrated a concentration-response relationship with 1.9 log10 maximal effect. CONCLUSIONS All 3 tenofovir douches achieved tissue tenofovir-diphosphate concentrations and colorectal antiviral effect exceeding oral TDF and with lower systemic tenofovir. Tenofovir douches may provide a single-dose, on-demand, behaviorally congruent PrEP option, and warrant continued development. Clinical Trials Registration . NCT02750540.
Collapse
Affiliation(s)
- Ethel D Weld
- Division of Clinical Pharmacology, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
- Division of Infectious Diseases, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Ian McGowan
- Department of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
- Orion Biotechnology, Ottawa, Ontario, Canada
| | - Peter Anton
- Division of Gastroenterology, Department of Medicine, University of California Los Angeles, Los Angeles, California, USA
| | - Edward J Fuchs
- Division of Clinical Pharmacology, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Ken Ho
- Department of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Alex Carballo-Dieguez
- HIV Center for Clinical and Behavioral Studies, Columbia University and NewYork State Psychiatric Institute, New York, New York, USA
| | - Lisa C Rohan
- Magee Womens Research Institute, Pittsburgh, Pennsylvania, USA
| | - Rebecca Giguere
- HIV Center for Clinical and Behavioral Studies, Columbia University and NewYork State Psychiatric Institute, New York, New York, USA
| | - Rhonda Brand
- Department of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
- Magee Womens Research Institute, Pittsburgh, Pennsylvania, USA
| | - Stacey Edick
- Department of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Rahul P Bakshi
- Division of Clinical Pharmacology, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Teresa Parsons
- Division of Clinical Pharmacology, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Madhuri Manohar
- Division of Clinical Pharmacology, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Aaron Seigel
- Magee Womens Research Institute, Pittsburgh, Pennsylvania, USA
| | - Jared Engstrom
- Department of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Julie Elliott
- Division of Gastroenterology, Department of Medicine, University of California Los Angeles, Los Angeles, California, USA
| | - Cindy Jacobson
- Magee Womens Research Institute, Pittsburgh, Pennsylvania, USA
| | - Christina Bagia
- Magee Womens Research Institute, Pittsburgh, Pennsylvania, USA
| | - Lin Wang
- Magee Womens Research Institute, Pittsburgh, Pennsylvania, USA
| | - Amer Al-khouja
- Division of Clinical Pharmacology, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Douglas J Hartman
- Department of Pathology, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Namandje N Bumpus
- Division of Clinical Pharmacology, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
- Department of Pharmacology and Molecular Sciences, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Hans M L Spiegel
- Kelly Government Solutions, Contractor to Division of AIDS, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Rockville, Maryland, USA
| | - Mark A Marzinke
- Division of Clinical Pharmacology, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
- Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Craig W Hendrix
- Division of Clinical Pharmacology, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
- Division of Infectious Diseases, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
- Department of Pharmacology and Molecular Sciences, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| |
Collapse
|
2
|
Herneisey M, Salcedo PF, Domenech T, Bagia C, George SS, Tunney R, Velankar S, Hitchens TK, Janjic JM. Design of Thermoresponsive Polyamine Cross-Linked Perfluoropolyether Hydrogels for Imaging and Delivery Applications. ACS Med Chem Lett 2020; 11:2032-2040. [PMID: 33062189 DOI: 10.1021/acsmedchemlett.0c00198] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2020] [Accepted: 08/11/2020] [Indexed: 12/31/2022] Open
Abstract
Perfluorocarbons are versatile compounds with applications in 19F magnetic resonance imaging (MRI) and chemical conjugation to drugs and pH sensors. We present a novel thermoresponsive perfluorocarbon emulsion hydrogel that can be detected by 19F MRI. The developed hydrogel contains perfluoro(polyethylene glycol dimethyl ether) (PFPE) emulsion droplets that are stabilized through ionic cross-linking with polyethylenimine (PEI). Specifically, PFPE ester undergoes hydrolysis upon contact with aqueous PEI solution, resulting in an ionic bond between the PFPE acid and charged PEI amino groups. Due to the ionic nature of the PFPE/PEI bond, potassium buffer is required to preserve the hydrogel's pH and rheological and emulsion droplet stability. The presence of the surface cross-linked PFPE droplets does not affect the hydrogel's rheological behavior, drug loading, or drug release, and the hydrogel is nontoxic. We propose that the presented hydrogel can be adapted to a broad range of biomedical imaging and delivery applications.
Collapse
Affiliation(s)
- Michele Herneisey
- Graduate School of Pharmaceutical Sciences, School of Pharmacy, Duquesne University, Pittsburgh, Pennsylvania 15282, United States
| | - Paula Flórez Salcedo
- Graduate School of Pharmaceutical Sciences, School of Pharmacy, Duquesne University, Pittsburgh, Pennsylvania 15282, United States
| | - Trystan Domenech
- Swanson School of Engineering, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, United States
| | - Christina Bagia
- Graduate School of Pharmaceutical Sciences, School of Pharmacy, Duquesne University, Pittsburgh, Pennsylvania 15282, United States
| | - Simon S George
- Graduate School of Pharmaceutical Sciences, School of Pharmacy, Duquesne University, Pittsburgh, Pennsylvania 15282, United States
| | - Robert Tunney
- Graduate School of Pharmaceutical Sciences, School of Pharmacy, Duquesne University, Pittsburgh, Pennsylvania 15282, United States
| | - Sachin Velankar
- Swanson School of Engineering, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, United States
| | - T Kevin Hitchens
- Department of Neurobiology, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, United States
| | - Jelena M Janjic
- Graduate School of Pharmaceutical Sciences, School of Pharmacy, Duquesne University, Pittsburgh, Pennsylvania 15282, United States
| |
Collapse
|
3
|
Liu W, Saunders MJ, Bagia C, Freeman EC, Fan Y, Gawalt ES, Waggoner AS, Meng WS. Local retention of antibodies in vivo with an injectable film embedded with a fluorogen-activating protein. J Control Release 2016; 230:1-12. [PMID: 27038493 DOI: 10.1016/j.jconrel.2016.03.032] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2015] [Revised: 02/25/2016] [Accepted: 03/22/2016] [Indexed: 11/17/2022]
Abstract
Herein we report an injectable film by which antibodies can be localized in vivo. The system builds upon a bifunctional polypeptide consisting of a fluorogen-activating protein (FAP) and a β-fibrillizing peptide (βFP). The FAP domain generates fluorescence that reflects IgG binding sites conferred by Protein A/G (pAG) conjugated with the fluorogen malachite green (MG). A film is generated by mixing these proteins with molar excess of EAK16-II, a βFP that forms β-sheet fibrils at high salt concentrations. The IgG-binding, fluorogenic film can be injected in vivo through conventional needled syringes. Confocal microscopic images and dose-response titration experiments showed that loading of IgG into the film was mediated by pAG(MG) bound to the FAP. Release of IgG in vitro was significantly delayed by the bioaffinity mechanism; 26% of the IgG were released from films embedded with pAG(MG) after five days, compared to close to 90% in films without pAG(MG). Computational simulations indicated that the release rate of IgG is governed by positive cooperativity due to pAG(MG). When injected into the subcutaneous space of mouse footpads, film-embedded IgG were retained locally, with distribution through the lymphatics impeded. The ability to track IgG binding sites and distribution simultaneously will aid the optimization of local antibody delivery systems.
Collapse
Affiliation(s)
- Wen Liu
- Division of Pharmaceutical Sciences, Duquesne University, Pittsburgh, PA 15282, United States
| | - Matthew J Saunders
- Molecular Biosensor and Imaging Center and Carnegie Mellon University, Pittsburgh, PA 15213, United States; Department of Biological Sciences, Carnegie Mellon University, Pittsburgh, PA 15213, United States
| | - Christina Bagia
- Division of Pharmaceutical Sciences, Duquesne University, Pittsburgh, PA 15282, United States
| | - Eric C Freeman
- College of Engineering, University of Georgia, Athens, GA 30602, United States
| | - Yong Fan
- Institute of Cellular Therapeutics, Allegheny-Singer Research Institute, Pittsburgh, PA 15212, United States; Department of Biological Sciences, Carnegie Mellon University, Pittsburgh, PA 15213, United States
| | - Ellen S Gawalt
- Department of Chemistry and Biochemistry, Duquesne University, Pittsburgh, PA 15282, United States; McGowan Institute for Regenerative Medicine, Pittsburgh, PA 15213, United States
| | - Alan S Waggoner
- Molecular Biosensor and Imaging Center and Carnegie Mellon University, Pittsburgh, PA 15213, United States; Department of Biological Sciences, Carnegie Mellon University, Pittsburgh, PA 15213, United States
| | - Wilson S Meng
- Division of Pharmaceutical Sciences, Duquesne University, Pittsburgh, PA 15282, United States.
| |
Collapse
|
4
|
Tajima A, Liu W, Pradhan I, Bertera S, Bagia C, Trucco M, Meng WS, Fan Y. Bioengineering mini functional thymic units with EAK16-II/EAKIIH6 self-assembling hydrogel. Clin Immunol 2015; 160:82-9. [DOI: 10.1016/j.clim.2015.03.010] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2015] [Revised: 03/14/2015] [Accepted: 03/16/2015] [Indexed: 11/29/2022]
|
5
|
Abstract
Theranostic nanomedicines are a promising new technological advancement toward personalized medicine. Although much progress has been made in pre-clinical studies, their clinical utilization is still under development. A key ingredient for successful theranostic clinical translation is pharmaceutical process design for production on a sufficient scale for clinical testing. In this study, we report, for the first time, a successful scale-up of a model theranostic nanoemulsion. Celecoxib-loaded near-infrared-labeled perfluorocarbon nanoemulsion was produced on three levels of scale (small at 54 mL, medium at 270 mL, and large at 1,000 mL) using microfluidization. The average size and polydispersity were not affected by the equipment used or production scale. The overall nanoemulsion stability was maintained for 90 days upon storage and was not impacted by nanoemulsion production scale or composition. Cell-based evaluations show comparable results for all nanoemulsions with no significant impact of nanoemulsion scale on cell toxicity and their pharmacological effects. This report serves as the first example of a successful scale-up of a theranostic nanoemulsion and a model for future studies on theranostic nanomedicine production and development.
Collapse
Affiliation(s)
- Lu Liu
- Graduate School of Pharmaceutical Sciences, Mylan School of Pharmacy, Duquesne University , Pittsburgh, Pennsylvania
| | - Christina Bagia
- Graduate School of Pharmaceutical Sciences, Mylan School of Pharmacy, Duquesne University , Pittsburgh, Pennsylvania
| | - Jelena M Janjic
- Graduate School of Pharmaceutical Sciences, Mylan School of Pharmacy, Duquesne University , Pittsburgh, Pennsylvania. ; Chronic Pain Research Consortium, Duquesne University , Pittsburgh, Pennsylvania. ; McGowan Research Institute for Regenerative Medicine, University of Pittsburgh , Pittsburgh, Pennsylvania
| |
Collapse
|
6
|
Josephson TR, Tsilomelekis G, Bagia C, Nikolakis V, Vlachos DG, Caratzoulas S. Solvent-Induced Frequency Shifts of 5-Hydroxymethylfurfural Deduced via Infrared Spectroscopy and ab Initio Calculations. J Phys Chem A 2014; 118:12149-60. [DOI: 10.1021/jp508340p] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Tyler R. Josephson
- Catalysis Center for Energy
Innovation, Department of Chemical and Biomolecular Engineering, University of Delaware, 150 Academy
Street, Newark, Delaware 19716, United States
| | - George Tsilomelekis
- Catalysis Center for Energy
Innovation, Department of Chemical and Biomolecular Engineering, University of Delaware, 150 Academy
Street, Newark, Delaware 19716, United States
| | - Christina Bagia
- Catalysis Center for Energy
Innovation, Department of Chemical and Biomolecular Engineering, University of Delaware, 150 Academy
Street, Newark, Delaware 19716, United States
| | - Vladimiros Nikolakis
- Catalysis Center for Energy
Innovation, Department of Chemical and Biomolecular Engineering, University of Delaware, 150 Academy
Street, Newark, Delaware 19716, United States
| | - Dionisios G. Vlachos
- Catalysis Center for Energy
Innovation, Department of Chemical and Biomolecular Engineering, University of Delaware, 150 Academy
Street, Newark, Delaware 19716, United States
| | - Stavros Caratzoulas
- Catalysis Center for Energy
Innovation, Department of Chemical and Biomolecular Engineering, University of Delaware, 150 Academy
Street, Newark, Delaware 19716, United States
| |
Collapse
|
7
|
Jia N, Zhang S, Shao P, Bagia C, Janjic JM, Ding Y, Bai M. Cannabinoid CB2 receptor as a new phototherapy target for the inhibition of tumor growth. Mol Pharm 2014; 11:1919-29. [PMID: 24779700 DOI: 10.1021/mp5001923] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
The success of targeted cancer therapy largely relies upon the selection of target and the development of efficient therapeutic agents that specifically bind to the target. In the current study, we chose a cannabinoid CB2 receptor (CB2R) as a new target and used a CB2R-targeted photosensitizer, IR700DX-mbc94, for phototherapy treatment. IR700DX-mbc94 was prepared by conjugating a photosensitizer, IR700DX, to mbc94, whose binding specificity to CB2R has been previously demonstrated. We found that phototherapy treatment using IR700DX-mbc94 greatly inhibited the growth of CB2R positive tumors but not CB2R negative tumors. In addition, phototherapy treatment with nontargeted IR700DX did not show significant therapeutic effect. Similarly, treatment with IR700DX-mbc94 without light irradiation or light irradiation without the photosensitizer showed no tumor-inhibitory effect. Taken together, IR700DX-mbc94 is a promising phototherapy agent with high target-specificity. Moreover, CB2R appears to have great potential as a phototherapeutic target for cancer treatment.
Collapse
Affiliation(s)
- Ningyang Jia
- Department of Radiology, Eastern Hepatobiliary Surgery Hospital, Second Military Medical University , Shanghai 200438, P. R. China
| | | | | | | | | | | | | |
Collapse
|
8
|
Swift TD, Bagia C, Choudhary V, Peklaris G, Nikolakis V, Vlachos DG. Correction to Kinetics of Homogeneous Brønsted Acid Catalyzed Fructose Dehydration and 5-Hydroxymethyl Furfural Rehydration: A Combined Experimental and Computational Study. ACS Catal 2014. [DOI: 10.1021/cs500313w] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
9
|
Swift TD, Bagia C, Choudhary V, Peklaris G, Nikolakis V, Vlachos DG. Kinetics of Homogeneous Brønsted Acid Catalyzed Fructose Dehydration and 5-Hydroxymethyl Furfural Rehydration: A Combined Experimental and Computational Study. ACS Catal 2013. [DOI: 10.1021/cs4009495] [Citation(s) in RCA: 95] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- T. Dallas Swift
- Department
of Chemical and Biomolecular Engineering, University of Delaware, 150 Academy Street, Newark, Delaware 19716, United States
- Catalysis Center for Energy Innovation, 221 Academy Street, Newark, Delaware 19716, United States
| | - Christina Bagia
- Department
of Chemical and Biomolecular Engineering, University of Delaware, 150 Academy Street, Newark, Delaware 19716, United States
- Catalysis Center for Energy Innovation, 221 Academy Street, Newark, Delaware 19716, United States
| | - Vinit Choudhary
- Department
of Chemical and Biomolecular Engineering, University of Delaware, 150 Academy Street, Newark, Delaware 19716, United States
- Catalysis Center for Energy Innovation, 221 Academy Street, Newark, Delaware 19716, United States
| | - George Peklaris
- Department
of Chemical Engineering, University of Massachusetts, 686 North Pleasant Street, 159 Goessmann Lab, Amherst, Massachusetts 01003, United States
- Catalysis Center for Energy Innovation, 221 Academy Street, Newark, Delaware 19716, United States
| | - Vladimiros Nikolakis
- Department
of Chemical and Biomolecular Engineering, University of Delaware, 150 Academy Street, Newark, Delaware 19716, United States
- Catalysis Center for Energy Innovation, 221 Academy Street, Newark, Delaware 19716, United States
| | - Dionisios G. Vlachos
- Department
of Chemical and Biomolecular Engineering, University of Delaware, 150 Academy Street, Newark, Delaware 19716, United States
- Catalysis Center for Energy Innovation, 221 Academy Street, Newark, Delaware 19716, United States
| |
Collapse
|
10
|
Affiliation(s)
- Shuting Feng
- Catalysis Center
for Energy Innovation (CCEI) and Department
of Chemical and Biomolecular Engineering, University of Delaware, Newark, Delaware 19716, United States
| | - Christina Bagia
- Catalysis Center
for Energy Innovation (CCEI) and Department
of Chemical and Biomolecular Engineering, University of Delaware, Newark, Delaware 19716, United States
| | - Giannis Mpourmpakis
- Catalysis Center
for Energy Innovation (CCEI) and Department
of Chemical and Biomolecular Engineering, University of Delaware, Newark, Delaware 19716, United States
| |
Collapse
|
11
|
Swift TD, Bagia C, Nikolakis V, Vlachos DG, Peklaris G, Dornath P, Fan W. Reactive adsorption for the selective dehydration of sugars to furans: Modeling and experiments. AIChE J 2013. [DOI: 10.1002/aic.14090] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- T. Dallas Swift
- Dept. of Chemical and Biomolecular Engineering and Catalysis Center for Energy Innovation; University of Delaware; 150 Academy Street; Newark; DE; 19716
| | - Christina Bagia
- Dept. of Chemical and Biomolecular Engineering and Catalysis Center for Energy Innovation; University of Delaware; 150 Academy Street; Newark; DE; 19716
| | - Vladimiros Nikolakis
- Dept. of Chemical and Biomolecular Engineering and Catalysis Center for Energy Innovation; University of Delaware; 150 Academy Street; Newark; DE; 19716
| | - Dionisios G. Vlachos
- Dept. of Chemical and Biomolecular Engineering and Catalysis Center for Energy Innovation; University of Delaware; 150 Academy Street; Newark; DE; 19716
| | | | | | | |
Collapse
|
12
|
Tupy SA, Karim AM, Bagia C, Deng W, Huang Y, Vlachos DG, Chen JG. Correlating Ethylene Glycol Reforming Activity with In Situ EXAFS Detection of Ni Segregation in Supported NiPt Bimetallic Catalysts. ACS Catal 2012. [DOI: 10.1021/cs3004227] [Citation(s) in RCA: 74] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Sarah A. Tupy
- Catalysis Center for Energy
Innovation, Department of Chemical and Bimolecular Engineering, University of Delaware, Newark, Delaware 19716, United
States
| | - Ayman M. Karim
- Institute for Integrated
Catalysis, Pacific Northwest National Laboratory, 902 Battelle
Boulevard, Richland, Washington 99352, United States
| | - Christina Bagia
- Catalysis Center for Energy
Innovation, Department of Chemical and Bimolecular Engineering, University of Delaware, Newark, Delaware 19716, United
States
| | - Weihua Deng
- Catalysis Center for Energy
Innovation, Department of Chemical and Bimolecular Engineering, University of Delaware, Newark, Delaware 19716, United
States
| | - Yulin Huang
- Catalysis Center for Energy
Innovation, Department of Chemical and Bimolecular Engineering, University of Delaware, Newark, Delaware 19716, United
States
| | - Dionisios G. Vlachos
- Catalysis Center for Energy
Innovation, Department of Chemical and Bimolecular Engineering, University of Delaware, Newark, Delaware 19716, United
States
| | - Jingguang G. Chen
- Catalysis Center for Energy
Innovation, Department of Chemical and Bimolecular Engineering, University of Delaware, Newark, Delaware 19716, United
States
| |
Collapse
|
13
|
Theodoridis G, Konsta G, Bagia C. Synthesis and evaluation of molecularly imprinted polymers for enalapril and lisinopril, two synthetic peptide anti-hypertensive drugs. J Chromatogr B Analyt Technol Biomed Life Sci 2004; 804:43-51. [PMID: 15093158 DOI: 10.1016/j.jchromb.2003.12.035] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Molecularly imprinted polymers (MIPs) for the recognition of enalapril and lisinopril were prepared using 4-vinylpyridine as the functional monomer. Following thermal polymerisation the resulting materials were crushed, ground and sieved. First generation MIPs were produced in protic polar porogenic solvents (mixture of methanol (MeOH) and acetonitrile (ACN)). These MIPs were used and validated as sorbents for solid phase extraction and binding assays. Second generation MIPs were produced with polar aprotic porogenic solvent (DMSO). These polymers were packed in HPLC columns in order to investigate their molecular recognition properties in a dynamic mode. The study of the mobile phase composition included two major parameters: organic modifier content and pH value. Retention factors illustrate selective binding of the template from the imprinted polymers, compared to structurally related compounds.
Collapse
Affiliation(s)
- Georgios Theodoridis
- Department of Chemistry, Aristotle University Thessaloniki, Thessaloniki 54124, Greece.
| | | | | |
Collapse
|