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Graf TP, Qiu SY, Varshney D, Laracuente ML, Euliano EM, Munnangi P, Pogostin BH, Baryakova T, Garyali A, McHugh KJ. A Scalable Platform for Fabricating Biodegradable Microparticles with Pulsatile Drug Release. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2300228. [PMID: 36862114 PMCID: PMC10247432 DOI: 10.1002/adma.202300228] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/08/2023] [Revised: 02/20/2023] [Indexed: 06/02/2023]
Abstract
Pulsatile drug delivery systems have the potential to improve patient adherence and therapeutic efficacy by providing a sequence of doses in a single injection. Herein, a novel platform, termed Particles Uniformly Liquified and Sealed to Encapsulate Drugs (PULSED) is developed, which enables the high-throughput fabrication of microparticles exhibiting pulsatile release. In PULSED, biodegradable polymeric microstructures with an open cavity are formed using high-resolution 3D printing and soft lithography, filled with drug, and sealed using a contactless heating step in which the polymer flows over the orifice to form a complete shell around a drug-loaded core. Poly(lactic-co-glycolic acid) particles with this structure can rapidly release encapsulated material after delays of 10 ± 1, 15 ± 1, 17 ± 2, or 36 ± 1 days in vivo, depending on polymer molecular weight and end group. The system is even compatible with biologics, releasing over 90% of bevacizumab in its bioactive form after a two-week delay in vitro. The PULSED system is highly versatile, offering compatibility with crystalline and amorphous polymers, easily injectable particle sizes, and compatibility with several newly developed drug loading methods. Together, these results suggest that PULSED is a promising platform for creating long-acting drug formulations that improve patient outcomes due to its simplicity, low cost, and scalability.
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Affiliation(s)
- Tyler P Graf
- Department of Bioengineering, Rice University, Houston, TX, 77005, USA
| | - Sherry Yue Qiu
- Department of Bioengineering, Rice University, Houston, TX, 77005, USA
| | - Dhruv Varshney
- Department of Bioengineering, Rice University, Houston, TX, 77005, USA
| | - Mei-Li Laracuente
- Department of Bioengineering, Rice University, Houston, TX, 77005, USA
- Medical Scientist Training Program, Baylor College of Medicine, Houston, TX, 77030, USA
| | - Erin M Euliano
- Department of Bioengineering, Rice University, Houston, TX, 77005, USA
| | - Pujita Munnangi
- Department of Bioengineering, Rice University, Houston, TX, 77005, USA
| | - Brett H Pogostin
- Department of Bioengineering, Rice University, Houston, TX, 77005, USA
| | | | - Arnav Garyali
- Department of Bioengineering, Rice University, Houston, TX, 77005, USA
| | - Kevin J McHugh
- Department of Bioengineering, Rice University, Houston, TX, 77005, USA
- Department of Chemistry, Rice University, Houston, TX, 77005, USA
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Arun Kumar S, Good J, Hendrix D, Yoo E, Kim D, Deo KA, Jhan Y, Gaharwar AK, Bishop CJ. Nanoengineered Light-Activatable Polybubbles for On-Demand Therapeutic Delivery. ADVANCED FUNCTIONAL MATERIALS 2020; 30:2003579. [PMID: 32774203 PMCID: PMC7401402 DOI: 10.1002/adfm.202003579] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Indexed: 05/17/2023]
Abstract
Vaccine coverage is severely limited in developing countries due to inefficient protection of vaccine functionality as well as lack of patient compliance to receive the additional booster doses. Thus, there is an urgent need to design a thermostable vaccine delivery platform that also enables release of the bolus after predetermined time. Here, the formation of injectable and light-activatable polybubbles for vaccine delivery is reported. In vitro studies show that polybubbles enable delayed burst release, irrespective of cargo types, namely small molecule and antigen. The extracorporeal activation of polybubbles is achieved by incorporating near-infrared (NIR)-sensitive gold nanorods (AuNRs). Interestingly, light-activatable polybubbles can be used for on-demand burst release of cargo. In vitro, ex vivo, and in vivo studies demonstrate successful activation of AuNR-loaded polybubbles. Overall, the light-activatable polybubble technology can be used for on-demand delivery of various therapeutics including small molecule drugs, immunologically relevant protein, peptide antigens, and nucleic acids.
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Affiliation(s)
- Shreedevi Arun Kumar
- Biomedical EngineeringCollege of EngineeringTexas A&M UniversityCollege StationTX77843USA
| | - Jacob Good
- Biomedical EngineeringCollege of EngineeringTexas A&M UniversityCollege StationTX77843USA
| | - David Hendrix
- Biomedical EngineeringCollege of EngineeringTexas A&M UniversityCollege StationTX77843USA
| | - Eunsoo Yoo
- Irma Lerma Rangel College of PharmacyTexas A&M Health Science CenterKingsvilleTX78363USA
| | - Dongin Kim
- Irma Lerma Rangel College of PharmacyTexas A&M Health Science CenterKingsvilleTX78363USA
| | - Kaivalya A. Deo
- Biomedical EngineeringCollege of EngineeringTexas A&M UniversityCollege StationTX77843USA
| | - Yong‐Yu Jhan
- Biomedical EngineeringCollege of EngineeringTexas A&M UniversityCollege StationTX77843USA
| | - Akhilesh K. Gaharwar
- Biomedical EngineeringCollege of EngineeringTexas A&M UniversityCollege StationTX77843USA
- Material Science and EngineeringCollege of EngineeringTexas A&M UniversityCollege StationTX77843USA
- Center for Remote Health Technologies and SystemsTexas A&M UniversityCollege StationTX77843USA
| | - Corey J. Bishop
- Biomedical EngineeringCollege of EngineeringTexas A&M UniversityCollege StationTX77843USA
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