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Kostryukov SG, Petrov PS, Masterova YY, Idris TD, Hamdamov SS, Yunusov IA, Kostryukov NS. CP MAS 13C NMR Spectroscopy in Determination of Species-Specific Differences in Wood Composition. RUSSIAN JOURNAL OF BIOORGANIC CHEMISTRY 2022. [DOI: 10.1134/s1068162022070111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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Honick M, Sarpal K, Alayoubi A, Zidan A, Hoag SW, Hollenbeck RG, Munson EJ, Polli JE. Utility of Films to Anticipate Effect of Drug Load and Polymer on Dissolution Performance from Tablets of Amorphous Itraconazole Spray-Dried Dispersions. AAPS PharmSciTech 2019; 20:331. [PMID: 31677012 DOI: 10.1208/s12249-019-1541-6] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2019] [Accepted: 09/16/2019] [Indexed: 11/30/2022] Open
Abstract
Because spray-dried dispersion (SDD) performance depends on polymer selection and drug load, time- and resource-sparing methods to screen drug/polymer combinations before spray drying are desirable. The primary objective was to assess the utility of films to anticipate the effects of drug load and polymer grade on dissolution performance of tablets containing SDDs of itraconazole (ITZ). A secondary objective was to characterize the solid-state attributes of films and SDDs to explain drug load and polymer effects on dissolution performance. SDDs employed three different grades of hypromellose acetate succinate (i.e., either HPMCAS-L, HPMCAS-M, or HPMCAS-H). Solid-state characterization employed differential scanning calorimetry (DSC), powder X-ray diffraction (PXRD), and solid-state nuclear magnetic resonance (ssNMR) spectroscopy. Results indicate that films correctly anticipated the effects of drug load and polymer on dissolution performance. The best dissolution profiles were observed under the following conditions: 20% drug loading performed better than 30% for both films and SDDs, and the polymer grade rank order was HPMCAS-L > HPMCAS-M > HPMCAS-H for both films and SDDs. No dissolution was detected from films or SDDs containing HPMCAS-H. Solid-state characterization revealed percent crystallinity and phase miscibility as contributing factors to dissolution, but were not the sole factors. Amorphous content in films varied with drug load (10% > 20% > 30%) and polymer grades (HPMCAS-L > HPMCAS-M > HPMCAS-H), in agreement with dissolution. In conclusion, films anticipated the rank-order effects of drug load and polymer grade on dissolution performance from SDDs of ITZ, in part through percent crystallinity and phase miscibility influences.
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Sarpal K, Delaney S, Zhang GGZ, Munson EJ. Phase Behavior of Amorphous Solid Dispersions of Felodipine: Homogeneity and Drug–Polymer Interactions. Mol Pharm 2019; 16:4836-4851. [DOI: 10.1021/acs.molpharmaceut.9b00731] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Kanika Sarpal
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Kentucky, 789 South Limestone Street, Lexington, Kentucky 40536, United States
| | - Sean Delaney
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Kentucky, 789 South Limestone Street, Lexington, Kentucky 40536, United States
| | - Geoff G. Z. Zhang
- Drug Product Development, Research and Development, AbbVie Inc., North Chicago, Illinois 60064, United States
| | - Eric J. Munson
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Kentucky, 789 South Limestone Street, Lexington, Kentucky 40536, United States
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Phase separation in poly(butylene terephthalate)-based materials prepared by solid-state modification. POLYMER 2014. [DOI: 10.1016/j.polymer.2014.05.051] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Wu RR, Kao HM, Jang FH, Woo EM. Solid-State NMR Study on Relationships between Miscibility and Chain Mobility in Poly(4-Methylstyrene)/Poly(Cyclohexyl Methacrylate) Blend. J CHIN CHEM SOC-TAIP 2013. [DOI: 10.1002/jccs.200100101] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Ghirga F, D'Acquarica I, Monache GD, Toscano S, Mannina L, Sobolev AP, Ugozzoli F, Crocco D, Antiochia R, Botta B. Undecenyl resorc[4]arene in the chair conformation as preorganized synthon for olefin metathesis. RSC Adv 2013. [DOI: 10.1039/c3ra42943a] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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Tsai CC, Zhang WB, Wang CL, Van Horn RM, Graham MJ, Huang J, Chen Y, Guo M, Cheng SZD. Evidence of formation of site-selective inclusion complexation between β-cyclodextrin and poly(ethylene oxide)-block-poly(propylene oxide)- block-poly(ethylene oxide) copolymers. J Chem Phys 2010; 132:204903. [DOI: 10.1063/1.3428769] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Chen L, Huang HZ, Wang YZ, Jow J, Su K. Transesterification-controlled compatibility and microfibrillation in PC–ABS composites reinforced by phosphorus-containing thermotropic liquid crystalline polyester. POLYMER 2009. [DOI: 10.1016/j.polymer.2009.04.026] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Chang LL, Woo E, Liu HL. Criteria dilemma of phase behavior in ternary blends comprising polystyrene, poly(alpha-methyl styrene), and poly(4-methyl styrene). POLYMER 2004. [DOI: 10.1016/j.polymer.2004.07.058] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Pollard M, Klimke K, Graf R, Spiess HW, Wilhelm M, Sperber O, Piel C, Kaminsky W. Observation of Chain Branching in Polyethylene in the Solid State and Melt via 13C NMR Spectroscopy and Melt NMR Relaxation Time Measurements. Macromolecules 2004. [DOI: 10.1021/ma0349130] [Citation(s) in RCA: 53] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Woo EM, Chou IC, Chang LL, Kao HM. Solid-State NMR Characterization on the Molecular-Level Homogeneity in Lower Critical Solution Temparature Mixtures of Poly(α-methyl styrene) and Poly(2,6-dimethyl-p-phenylene oxide). Polym J 2003. [DOI: 10.1295/polymj.35.372] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Wu RR, Kao HM, Chiang JC, Woo E. Solid-state NMR studies on phase behavior and motional mobility in binary blends of polystyrene and poly(cyclohexyl methacrylate). POLYMER 2002. [DOI: 10.1016/s0032-3861(01)00570-5] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Radmard B, Dadmun MD. Effect of transesterification on the morphology and mechanical properties of a blend containing a liquid crystalline polymer. J Appl Polym Sci 2001. [DOI: 10.1002/app.1369] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Guo M, Brittain WJ. Structure and Properties of Naphthalene-Containing Polyesters. 4. New Insight into the Relationship of Transesterification and Miscibility. Macromolecules 1998. [DOI: 10.1021/ma9716903] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Mingming Guo
- Institute of Polymer Science, The University of Akron, Akron, Ohio 44325-3909
| | - William J. Brittain
- Institute of Polymer Science, The University of Akron, Akron, Ohio 44325-3909
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Crosslinked Polymers. ACTA ACUST UNITED AC 1998. [DOI: 10.1016/s0167-6881(98)80023-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
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Guo M, Zachmann HG. Structure and Properties of Naphthalene-Containing Polyesters. 2. Miscibility Studies of Poly(ethylene naphthalene-2,6-dicarboxylate) with Poly(butylene terephthalate) by 13C CP/MAS NMR and DSC. Macromolecules 1997. [DOI: 10.1021/ma9613695] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Mingming Guo
- Institute of Polymer Science, The University of Akron, Akron, Ohio 44325-3909
| | - H. G. Zachmann
- Institute of Macromolecule Chemistry and Technology, University of Hamburg, Bundesstrasse 45, D-20146 Hamburg, Germany
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Guo M, Zachmann HG. Solid State CP/MAS 13C Nuclear Magnetic Resonance Spectra of Poly(4-hydroxybenzoate)s. Macromolecules 1996. [DOI: 10.1021/ma960537q] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- M. Guo
- Institute of Polymer Science, The University of Akron, Akron, Ohio 44325-3909
| | - H. G. Zachmann
- Institut fur TMC, Universitat Hamburg, Bundesstrasse 45, D-20146 Hamburg, Germany
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Hergenrother R, Silver J, Kardos J, Cooper S. Chapter 7 Bulk characterization. Cardiovasc Pathol 1993. [DOI: 10.1016/1054-8807(93)90048-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/26/2022] Open
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Guo M, Zachmann H. Intermolecular cross-polarization nuclear magnetic resonance studies of the miscibility of poly(ethylene naphthalene dicarboxylate)/poly(ethylene terephthalate) blends. POLYMER 1993. [DOI: 10.1016/0032-3861(93)90579-y] [Citation(s) in RCA: 70] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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