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Dumbuya I, Pereira AM, Tolaymat I, Al Dalaty A, Arafat B, Webster M, Pierscionek B, Khoder M, Najlah M. Exploring Disulfiram's Anticancer Potential: PLGA Nano-Carriers for Prolonged Drug Delivery and Potential Improved Therapeutic Efficacy. NANOMATERIALS (BASEL, SWITZERLAND) 2024; 14:1133. [PMID: 38998738 PMCID: PMC11243172 DOI: 10.3390/nano14131133] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/06/2024] [Revised: 06/23/2024] [Accepted: 06/24/2024] [Indexed: 07/14/2024]
Abstract
Disulfiram (DS) has been shown to have potent anti-cancer activity; however, it is also characterised by its low water solubility and rapid metabolism in vivo. Biodegradable polylactic-co-glycolic acid (PLGA) polymers have been frequently employed in the manufacturing of PLGA nano-carrier drug delivery systems. Thus, to develop DS-loaded PLGA nanoparticles (NPs) capable of overcoming DS's limitations, two methodologies were used to formulate the NPs: direct nanoprecipitation (DNP) and single emulsion/solvent evaporation (SE), followed by particle size reduction. The DNP method was demonstrated to produce NPs of superior characteristics in terms of size (151.3 nm), PDI (0.083), charge (-37.9 mV), and loading efficiency (65.3%). Consequently, NPs consisting of PLGA and encapsulated DS coated with mPEG2k-PLGA at adjustable ratios were prepared using the DNP method. Formulations were then characterised, and their stability in horse serum was assessed. Results revealed the PEGylated DS-loaded PLGA nano-carriers to be more efficient; hence, in-vitro studies testing these formulations were subsequently performed using two distinct breast cancer cell lines, showing great potential to significantly enhance cancer therapy.
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Affiliation(s)
- Ibrahim Dumbuya
- Pharmaceutical Research Group, School of Allied Health, Faculty of Health, Education, Medicine and Social Care, Anglia Ruskin University, Bishops Hall Lane, Chelmsford CM1 1SQ, UK
| | - Ana Maria Pereira
- Pharmaceutical Research Group, School of Allied Health, Faculty of Health, Education, Medicine and Social Care, Anglia Ruskin University, Bishops Hall Lane, Chelmsford CM1 1SQ, UK
- GMPriority Pharma Ltd., Priors Way, Coggeshall CO6 1TW, UK
| | - Ibrahim Tolaymat
- Pharmaceutical Research Group, School of Allied Health, Faculty of Health, Education, Medicine and Social Care, Anglia Ruskin University, Bishops Hall Lane, Chelmsford CM1 1SQ, UK
| | - Adnan Al Dalaty
- Pharmaceutical Research Group, School of Allied Health, Faculty of Health, Education, Medicine and Social Care, Anglia Ruskin University, Bishops Hall Lane, Chelmsford CM1 1SQ, UK
| | - Basel Arafat
- Pharmaceutical Research Group, School of Allied Health, Faculty of Health, Education, Medicine and Social Care, Anglia Ruskin University, Bishops Hall Lane, Chelmsford CM1 1SQ, UK
| | - Matt Webster
- University of Winchester Sparkford Road, Winchester SO22 4NR, UK
| | - Barbara Pierscionek
- Pharmaceutical Research Group, School of Allied Health, Faculty of Health, Education, Medicine and Social Care, Anglia Ruskin University, Bishops Hall Lane, Chelmsford CM1 1SQ, UK
| | - Mouhamad Khoder
- Faculty of Health, Science, Social Care and Education, Kingston University London, Kingston upon Thames KT1 2EE, UK
| | - Mohammad Najlah
- Pharmaceutical Research Group, School of Allied Health, Faculty of Health, Education, Medicine and Social Care, Anglia Ruskin University, Bishops Hall Lane, Chelmsford CM1 1SQ, UK
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Bentley ER, Subick S, Pezzillo M, Balmert SC, Herbert A, Little SR. Identification and Characterization of Critical Processing Parameters in the Fabrication of Double-Emulsion Poly(lactic-co-glycolic) Acid Microparticles. Pharmaceutics 2024; 16:796. [PMID: 38931917 PMCID: PMC11207479 DOI: 10.3390/pharmaceutics16060796] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2024] [Revised: 06/07/2024] [Accepted: 06/09/2024] [Indexed: 06/28/2024] Open
Abstract
In the past several decades, polymeric microparticles (MPs) have emerged as viable solutions to address the limitations of standard pharmaceuticals and their corresponding delivery methods. While there are many preclinical studies that utilize polymeric MPs as a delivery vehicle, there are limited FDA-approved products. One potential barrier to the clinical translation of these technologies is a lack of understanding with regard to the manufacturing process, hindering batch scale-up. To address this knowledge gap, we sought to first identify critical processing parameters in the manufacturing process of blank (no therapeutic drug) and protein-loaded double-emulsion poly(lactic-co-glycolic) acid MPs through a quality by design approach. We then utilized the design of experiments as a tool to systematically investigate the impact of these parameters on critical quality attributes (e.g., size, surface morphology, release kinetics, inner occlusion size, etc.) of blank and protein-loaded MPs. Our results elucidate that some of the most significant CPPs impacting many CQAs of double-emulsion MPs are those within the primary or single-emulsion process (e.g., inner aqueous phase volume, solvent volume, etc.) and their interactions. Furthermore, our results indicate that microparticle internal structure (e.g., inner occlusion size, interconnectivity, etc.) can heavily influence protein release kinetics from double-emulsion MPs, suggesting it is a crucial CQA to understand. Altogether, this study identifies several important considerations in the manufacturing and characterization of double-emulsion MPs, potentially enhancing their translation.
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Affiliation(s)
- Elizabeth R. Bentley
- Department of Bioengineering, University of Pittsburgh, 302 Benedum Hall, 3700 O’Hara Street, Pittsburgh, PA 15260, USA;
| | - Stacia Subick
- Department of Chemical Engineering, University of Pittsburgh, 940 Benedum Hall, 3700 O’Hara Street, Pittsburgh, PA 15213, USA; (S.S.); (M.P.)
| | - Michael Pezzillo
- Department of Chemical Engineering, University of Pittsburgh, 940 Benedum Hall, 3700 O’Hara Street, Pittsburgh, PA 15213, USA; (S.S.); (M.P.)
| | - Stephen C. Balmert
- Department of Dermatology, University of Pittsburgh School of Medicine, W1150 Biomedical Science Tower, 200 Lothrop Street, Pittsburgh, PA 15213, USA;
| | - Aidan Herbert
- DigiM Solution—Pixel Perfect Therapeutics, 500 W Cummings Park, Suite 3650, Woburn, MA 01801, USA;
| | - Steven R. Little
- Department of Bioengineering, University of Pittsburgh, 302 Benedum Hall, 3700 O’Hara Street, Pittsburgh, PA 15260, USA;
- Department of Chemical Engineering, University of Pittsburgh, 940 Benedum Hall, 3700 O’Hara Street, Pittsburgh, PA 15213, USA; (S.S.); (M.P.)
- Department of Clinical and Translational Science, University of Pittsburgh, Forbes Tower, Suite 7057, Pittsburgh, PA 15213, USA
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, 450 Technology Drive, Suite 300, Pittsburgh, PA 15219, USA
- Department of Immunology, University of Pittsburgh, 200 Lothrop Street, Pittsburgh, PA 15213, USA
- Department of Pharmaceutical Sciences, University of Pittsburgh, 3501 Terrace Street, Pittsburgh, PA 15213, USA
- Department of Ophthalmology, University of Pittsburgh, 203 Lothrop Street, Pittsburgh, PA 15213, USA
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Yadav P, Singh Y, Chauhan D, Yadav PK, Kedar AS, Tiwari AK, Shah AA, Gayen JR, Chourasia MK. Development and approval of novel injectables: enhancing therapeutic innovations. Expert Opin Drug Deliv 2024; 21:639-662. [PMID: 38703363 DOI: 10.1080/17425247.2024.2351987] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2024] [Accepted: 05/02/2024] [Indexed: 05/06/2024]
Abstract
INTRODUCTION Novel injectables possess applications in both local and systemic therapeutics delivery. The advancement in utilized materials for the construction of complex injectables has tremendously upgraded their safety and efficacy. AREAS COVERED This review focuses on various strategies to produce novel injectables, including oily dispersions, in situ forming implants, injectable suspensions, microspheres, liposomes, and antibody-drug conjugates. We herein present a detailed description of complex injectable technologies and their related drug formulations permitted for clinical use by the United States Food and Drug Administration (USFDA). The excipients used, their purpose and the challenges faced during manufacturing such formulations have been critically discussed. EXPERT OPINION Novel injectables can deliver therapeutic agents in a controlled way at the desired site. However, several challenges persist with respect to their genericization. Astronomical costs incurred by innovator companies during product development, complexity of the product itself, supply limitations with respect to raw materials, intricate manufacturing processes, patent evergreening, product life-cycle extensions, relatively few and protracted generic approvals contribute to the exorbitant prices and access crunch. Moreover, regulatory guidance are grossly underdeveloped and significant efforts have to be directed toward development of effective characterization techniques.
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Affiliation(s)
- Pooja Yadav
- Division of Pharmaceutics and Pharmacokinetics, CSIR-Central Drug Research Institute, Lucknow, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India
| | - Yuvraj Singh
- Division of Pharmaceutics and Pharmacokinetics, CSIR-Central Drug Research Institute, Lucknow, India
| | - Divya Chauhan
- Division of Pharmaceutics and Pharmacokinetics, CSIR-Central Drug Research Institute, Lucknow, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India
| | - Pavan K Yadav
- Division of Pharmaceutics and Pharmacokinetics, CSIR-Central Drug Research Institute, Lucknow, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India
| | - Ashwini S Kedar
- Division of Pharmaceutics and Pharmacokinetics, CSIR-Central Drug Research Institute, Lucknow, India
| | - Amrendra K Tiwari
- Division of Pharmaceutics and Pharmacokinetics, CSIR-Central Drug Research Institute, Lucknow, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India
| | - Aarti Abhishek Shah
- Division of Pharmaceutics and Pharmacokinetics, CSIR-Central Drug Research Institute, Lucknow, India
| | - Jiaur R Gayen
- Division of Pharmaceutics and Pharmacokinetics, CSIR-Central Drug Research Institute, Lucknow, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India
| | - Manish K Chourasia
- Division of Pharmaceutics and Pharmacokinetics, CSIR-Central Drug Research Institute, Lucknow, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India
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Longre S, Rana D, Rangra S, Jindal AB, Salave S, Vitore J, Benival D. Quality-by-Design Based Development of Doxycycline Hyclate-Loaded Polymeric Microspheres for Prolonged Drug Release. AAPS PharmSciTech 2024; 25:49. [PMID: 38424393 DOI: 10.1208/s12249-024-02760-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2023] [Accepted: 02/06/2024] [Indexed: 03/02/2024] Open
Abstract
This study explores a novel approach to address the challenges of delivering highly water-soluble drug molecules by employing hydrophobic ion-pairing (HIP) complexes within poly (lactic-co-glycolic acid) (PLGA) microspheres. The HIP complex, formed between doxycycline hyclate (DH) and docusate sodium (DS), renders the drug hydrophobic. The development of the microspheres was done using the QbD approach, namely, Box-Behnken Design (BBD). A comprehensive characterization of the HIP complex confirmed the successful conversion of DH. DH and the HIP complex were effectively loaded into PLGA microspheres using the oil-in-water (O/W) emulsion solvent evaporation method. Results demonstrated significant improvements in percentage entrapment efficiency (% EE) and drug loading (% DL) for DH within the HIP complex-loaded PLGA microspheres compared to DH-loaded microspheres alone. Additionally, the initial burst release of DH reduced to 3% within the initial 15 min, followed by sustained drug release over 8 days. The modified HIP complex strategy offers a promising platform for improving the delivery of highly water-soluble small molecules. It provides high % EE, % DL, minimal initial burst release, and sustained release, thus having the potential to enhance patient compliance and drug delivery efficiency.
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Affiliation(s)
- Suraj Longre
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research -Ahmedabad (NIPER-A), Gandhinagar, India
| | - Dhwani Rana
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research -Ahmedabad (NIPER-A), Gandhinagar, India
| | - Shagun Rangra
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research -Ahmedabad (NIPER-A), Gandhinagar, India
| | - Anil B Jindal
- Department of Pharmacy, Birla Institute of Technology and Science Pilani (BITS PILANI), Pilani Campus, Rajasthan, 333031, India
| | - Sagar Salave
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research -Ahmedabad (NIPER-A), Gandhinagar, India
| | - Jyotsna Vitore
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research -Ahmedabad (NIPER-A), Gandhinagar, India
| | - Derajram Benival
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research -Ahmedabad (NIPER-A), Gandhinagar, India.
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Pan M, Shao H, Fan Y, Yang J, Liu J, Deng Z, Liu Z, Chen Z, Zhang J, Yi K, Su Y, Wang D, Deng X, Deng F. Superhydrophobic Surface-Assisted Preparation of Microspheres and Supraparticles and Their Applications. NANO-MICRO LETTERS 2024; 16:68. [PMID: 38175452 PMCID: PMC10766899 DOI: 10.1007/s40820-023-01284-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/14/2023] [Accepted: 11/09/2023] [Indexed: 01/05/2024]
Abstract
Superhydrophobic surface (SHS) has been well developed, as SHS renders the property of minimizing the water/solid contact interface. Water droplets deposited onto SHS with contact angles exceeding 150°, allow them to retain spherical shapes, and the low adhesion of SHS facilitates easy droplet collection when tilting the substrate. These characteristics make SHS suitable for a wide range of applications. One particularly promising application is the fabrication of microsphere and supraparticle materials. SHS offers a distinct advantage as a universal platform capable of providing customized services for a variety of microspheres and supraparticles. In this review, an overview of the strategies for fabricating microspheres and supraparticles with the aid of SHS, including cross-linking process, polymer melting, and droplet template evaporation methods, is first presented. Then, the applications of microspheres and supraparticles formed onto SHS are discussed in detail, for example, fabricating photonic devices with controllable structures and tunable structural colors, acting as catalysts with emerging or synergetic properties, being integrated into the biomedical field to construct the devices with different medicinal purposes, being utilized for inducing protein crystallization and detecting trace amounts of analytes. Finally, the perspective on future developments involved with this research field is given, along with some obstacles and opportunities.
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Affiliation(s)
- Mengyao Pan
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu, 611731, People's Republic of China
- Shenzhen Institute for Advanced Study, University of Electronic Science and Technology of China, Shenzhen, 518110, People's Republic of China
| | - Huijuan Shao
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu, 611731, People's Republic of China
| | - Yue Fan
- School of Materials Science and Engineering, Sun Yat-Sen University, Guangzhou, 510275, People's Republic of China
| | - Jinlong Yang
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu, 611731, People's Republic of China
| | - Jiaxin Liu
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu, 611731, People's Republic of China
| | - Zhongqian Deng
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu, 611731, People's Republic of China
| | - Zhenda Liu
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu, 611731, People's Republic of China
| | - Zhidi Chen
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu, 611731, People's Republic of China
| | - Jun Zhang
- Pharmaceutical Glass Co. Ltd, Zibo, 256100, People's Republic of China
| | - Kangfeng Yi
- Pharmaceutical Glass Co. Ltd, Zibo, 256100, People's Republic of China
| | - Yucai Su
- Pharmaceutical Glass Co. Ltd, Zibo, 256100, People's Republic of China
| | - Dehui Wang
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu, 611731, People's Republic of China.
| | - Xu Deng
- Shenzhen Institute for Advanced Study, University of Electronic Science and Technology of China, Shenzhen, 518110, People's Republic of China.
| | - Fei Deng
- Department of Nephropathy, School of Medicine, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, People's Republic of China.
- Department of Nephrology, Sichuan Provincial People's Hospital Jinniu Hospital, Chengdu Jinniu District People's Hospital, Chengdu, People's Republic of China.
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Lefol L, Bawuah P, Zeitler J, Verin J, Danede F, Willart J, Siepmann F, Siepmann J. Drug release from PLGA microparticles can be slowed down by a surrounding hydrogel. Int J Pharm X 2023; 6:100220. [PMID: 38146325 PMCID: PMC10749250 DOI: 10.1016/j.ijpx.2023.100220] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2023] [Revised: 11/23/2023] [Accepted: 11/25/2023] [Indexed: 12/27/2023] Open
Abstract
This study aimed to evaluate and better understand the potential impact that a layer of surrounding hydrogel (mimicking living tissue) can have on the drug release from PLGA microparticles. Ibuprofen-loaded microparticles were prepared with an emulsion solvent extraction/evaporation method. The drug loading was about 48%. The surface of the microparticles appeared initially smooth and non-porous. In contrast, the internal microstructure of the particles exhibited a continuous network of tiny pores. Ibuprofen release from single microparticles was measured into agarose gels and well-agitated phosphate buffer pH 7.4. Optical microscopy, scanning electron microscopy, differential scanning calorimetry, X-ray powder diffraction, and X-ray μCT imaging were used to characterize the microparticles before and after exposure to the release media. Importantly, ibuprofen release was much slower in the presence of a surrounding agarose gel, e.g., the complete release took two weeks vs. a few days in well agitated phosphate buffer. This can probably be attributed to the fact that the hydrogel sterically hinders substantial system swelling and, thus, slows down the related increase in drug mobility. In addition, in this particular case, the convective flow in agitated bulk fluid likely damages the thin PLGA layer at the microparticles' surface, giving the outer aqueous phase more rapid access to the inner continuous pore network: Upon contact with water, the drug dissolves and rapidly diffuses out through a continuous network of water-filled channels. Without direct surface access, most of the drug "has to wait" for the onset of substantial system swelling to be released.
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Affiliation(s)
- L.A. Lefol
- Univ. Lille, Inserm, CHU Lille, U1008, Lille F-59000, France
| | - P. Bawuah
- Univ. Cambridge, Department of Chemical Engineering and Biotechnology, Cambridge CB3 0AS, UK
| | - J.A. Zeitler
- Univ. Cambridge, Department of Chemical Engineering and Biotechnology, Cambridge CB3 0AS, UK
| | - J. Verin
- Univ. Lille, Inserm, CHU Lille, U1008, Lille F-59000, France
| | - F. Danede
- Univ. Lille, USTL UMET UMR CNRS 8207, Villeneuve d'Ascq F-59650, France
| | - J.F. Willart
- Univ. Lille, USTL UMET UMR CNRS 8207, Villeneuve d'Ascq F-59650, France
| | - F. Siepmann
- Univ. Lille, Inserm, CHU Lille, U1008, Lille F-59000, France
| | - J. Siepmann
- Univ. Lille, Inserm, CHU Lille, U1008, Lille F-59000, France
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Zhang H, Yang Z, Wu D, Hao B, Liu Y, Wang X, Pu W, Yi Y, Shang R, Wang S. The Effect of Polymer Blends on the In Vitro Release/Degradation and Pharmacokinetics of Moxidectin-Loaded PLGA Microspheres. Int J Mol Sci 2023; 24:14729. [PMID: 37834176 PMCID: PMC10573114 DOI: 10.3390/ijms241914729] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2023] [Revised: 09/24/2023] [Accepted: 09/28/2023] [Indexed: 10/15/2023] Open
Abstract
To investigate the effect of polymer blends on the in vitro release/degradation and pharmacokinetics of moxidectin-loaded PLGA microspheres (MOX-MS), four formulations (F1, F2, F3 and F4) were prepared using the O/W emulsion solvent evaporation method by blending high (75/25, 75 kDa) and low (50/50, 23 kDa) molecular weight PLGA with different ratios. The addition of low-molecular-weight PLGA did not change the release mechanism of microspheres, but sped up the drug release of microspheres and drastically shortened the lag phase. The in vitro degradation results show that the release of microspheres consisted of a combination of pore diffusion and erosion, and especially autocatalysis played an important role in this process. Furthermore, an accelerated release method was also developed to reduce the period for drug release testing within one month. The pharmacokinetic results demonstrated that MOX-MS could be released for at least 60 days with only a slight blood drug concentration fluctuation. In particular, F3 displayed the highest AUC and plasma concentration (AUC0-t = 596.53 ng/mL·d, Cave (day 30-day 60) = 8.84 ng/mL), making it the optimal formulation. Overall, these results indicate that using polymer blends could easily adjust hydrophobic drug release from microspheres and notably reduce the lag phase of microspheres.
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Affiliation(s)
- Hongjuan Zhang
- Key Laboratory of New Animal Drug Project, Gansu Province/Key Laboratory of Veterinary Pharmaceutical Development, Ministry of Agriculture and Rural Affairs/Lanzhou Institute of Husbandry and Pharmaceutical Sciences of CAAS, Lanzhou 730050, China; (H.Z.); (Z.Y.); (D.W.); (B.H.); (Y.L.); (X.W.); (W.P.); (Y.Y.)
| | - Zhen Yang
- Key Laboratory of New Animal Drug Project, Gansu Province/Key Laboratory of Veterinary Pharmaceutical Development, Ministry of Agriculture and Rural Affairs/Lanzhou Institute of Husbandry and Pharmaceutical Sciences of CAAS, Lanzhou 730050, China; (H.Z.); (Z.Y.); (D.W.); (B.H.); (Y.L.); (X.W.); (W.P.); (Y.Y.)
| | - Di Wu
- Key Laboratory of New Animal Drug Project, Gansu Province/Key Laboratory of Veterinary Pharmaceutical Development, Ministry of Agriculture and Rural Affairs/Lanzhou Institute of Husbandry and Pharmaceutical Sciences of CAAS, Lanzhou 730050, China; (H.Z.); (Z.Y.); (D.W.); (B.H.); (Y.L.); (X.W.); (W.P.); (Y.Y.)
| | - Baocheng Hao
- Key Laboratory of New Animal Drug Project, Gansu Province/Key Laboratory of Veterinary Pharmaceutical Development, Ministry of Agriculture and Rural Affairs/Lanzhou Institute of Husbandry and Pharmaceutical Sciences of CAAS, Lanzhou 730050, China; (H.Z.); (Z.Y.); (D.W.); (B.H.); (Y.L.); (X.W.); (W.P.); (Y.Y.)
| | - Yu Liu
- Key Laboratory of New Animal Drug Project, Gansu Province/Key Laboratory of Veterinary Pharmaceutical Development, Ministry of Agriculture and Rural Affairs/Lanzhou Institute of Husbandry and Pharmaceutical Sciences of CAAS, Lanzhou 730050, China; (H.Z.); (Z.Y.); (D.W.); (B.H.); (Y.L.); (X.W.); (W.P.); (Y.Y.)
| | - Xuehong Wang
- Key Laboratory of New Animal Drug Project, Gansu Province/Key Laboratory of Veterinary Pharmaceutical Development, Ministry of Agriculture and Rural Affairs/Lanzhou Institute of Husbandry and Pharmaceutical Sciences of CAAS, Lanzhou 730050, China; (H.Z.); (Z.Y.); (D.W.); (B.H.); (Y.L.); (X.W.); (W.P.); (Y.Y.)
| | - Wanxia Pu
- Key Laboratory of New Animal Drug Project, Gansu Province/Key Laboratory of Veterinary Pharmaceutical Development, Ministry of Agriculture and Rural Affairs/Lanzhou Institute of Husbandry and Pharmaceutical Sciences of CAAS, Lanzhou 730050, China; (H.Z.); (Z.Y.); (D.W.); (B.H.); (Y.L.); (X.W.); (W.P.); (Y.Y.)
| | - Yunpeng Yi
- Key Laboratory of New Animal Drug Project, Gansu Province/Key Laboratory of Veterinary Pharmaceutical Development, Ministry of Agriculture and Rural Affairs/Lanzhou Institute of Husbandry and Pharmaceutical Sciences of CAAS, Lanzhou 730050, China; (H.Z.); (Z.Y.); (D.W.); (B.H.); (Y.L.); (X.W.); (W.P.); (Y.Y.)
- Shandong Provincial Animal and Poultry Green Health Products Creation Engineering Laboratory, Institute of Poultry Science, Shandong Academy of Agricultural Science, Jinan 250023, China
| | - Ruofeng Shang
- Key Laboratory of New Animal Drug Project, Gansu Province/Key Laboratory of Veterinary Pharmaceutical Development, Ministry of Agriculture and Rural Affairs/Lanzhou Institute of Husbandry and Pharmaceutical Sciences of CAAS, Lanzhou 730050, China; (H.Z.); (Z.Y.); (D.W.); (B.H.); (Y.L.); (X.W.); (W.P.); (Y.Y.)
| | - Shengyi Wang
- Key Laboratory of New Animal Drug Project, Gansu Province/Key Laboratory of Veterinary Pharmaceutical Development, Ministry of Agriculture and Rural Affairs/Lanzhou Institute of Husbandry and Pharmaceutical Sciences of CAAS, Lanzhou 730050, China; (H.Z.); (Z.Y.); (D.W.); (B.H.); (Y.L.); (X.W.); (W.P.); (Y.Y.)
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Sagoe PNK, Velázquez EJM, Espiritusanto YM, Gilbert A, Orado T, Wang Q, Jain E. Fabrication of PEG-PLGA Microparticles with Tunable Sizes for Controlled Drug Release Application. Molecules 2023; 28:6679. [PMID: 37764454 PMCID: PMC10534673 DOI: 10.3390/molecules28186679] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2023] [Revised: 09/08/2023] [Accepted: 09/12/2023] [Indexed: 09/29/2023] Open
Abstract
Polymeric microparticles of polyethyleneglycol-polylactic acid-co-glycolic acid (PEG-PLGA) are widely used as drug carriers for a variety of applications due to their unique characteristics. Although existing techniques for producing polymeric drug carriers offer the possibility of achieving greater production yield across a wide range of sizes, these methods are improbable to precisely tune particle size while upholding uniformity of particle size and morphology, ensuring consistent production yield, maintaining batch-to-batch reproducibility, and improving drug loading capacity. Herein, we developed a novel scalable method for the synthesis of tunable-sized microparticles with improved monodispersity and batch-to-batch reproducibility via the coaxial flow-phase separation technique. The study evaluated the effect of various process parameters on microparticle size and polydispersity, including polymer concentration, stirring rate, surfactant concentration, and the organic/aqueous phase flow rate and volume ratio. The results demonstrated that stirring rate and polymer concentration had the most significant impact on the mean particle size and distribution, whereas surfactant concentration had the most substantial impact on the morphology of particles. In addition to synthesizing microparticles of spherical morphology yielding particle sizes in the range of 5-50 µm across different formulations, we were able to also synthesize several microparticles exhibiting different morphologies and particle concentrations as a demonstration of the tunability and scalability of this method. Notably, by adjusting key determining process parameters, it was possible to achieve microparticle sizes in a comparable range (5-7 µm) for different formulations despite varying the concentration of polymer and volume of polymer solution in the organic phase by an order of magnitude. Finally, by the incorporation of fluorescent dyes as model hydrophilic and hydrophobic drugs, we further demonstrated how polymer amount influences drug loading capacity, encapsulation efficiency, and release kinetics of these microparticles of comparable sizes. Our study provides a framework for fabricating both hydrophobic and hydrophilic drug-loaded microparticles and elucidates the interplay between fabrication parameters and the physicochemical properties of microparticles, thereby offering an itinerary for expanding the applicability of this method for producing polymeric microparticles with desirable characteristics for specific drug delivery applications.
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Affiliation(s)
- Paul Nana Kwame Sagoe
- Department of Biomedical and Chemical Engineering, Bioinspired Syracuse: Institute for Material and Living System, Syracuse University, Syracuse, NY 13244, USA; (P.N.K.S.); (Y.M.E.); (T.O.)
| | | | - Yohely Maria Espiritusanto
- Department of Biomedical and Chemical Engineering, Bioinspired Syracuse: Institute for Material and Living System, Syracuse University, Syracuse, NY 13244, USA; (P.N.K.S.); (Y.M.E.); (T.O.)
| | - Amelia Gilbert
- Department of Biomedical Engineering, Rochester Institute of Technology, Rochester, NY 14623, USA;
| | - Thalma Orado
- Department of Biomedical and Chemical Engineering, Bioinspired Syracuse: Institute for Material and Living System, Syracuse University, Syracuse, NY 13244, USA; (P.N.K.S.); (Y.M.E.); (T.O.)
| | - Qiu Wang
- School of Education, Syracuse University, Syracuse, NY 13244, USA;
| | - Era Jain
- Department of Biomedical and Chemical Engineering, Bioinspired Syracuse: Institute for Material and Living System, Syracuse University, Syracuse, NY 13244, USA; (P.N.K.S.); (Y.M.E.); (T.O.)
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9
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Chandrashekar A, Beig A, Wang Y, Schwendeman SP. In vitro performance of composition-equivalent PLGA microspheres encapsulating exenatide acetate by solvent evaporation. Int J Pharm 2023; 643:123213. [PMID: 37423376 DOI: 10.1016/j.ijpharm.2023.123213] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Revised: 07/04/2023] [Accepted: 07/06/2023] [Indexed: 07/11/2023]
Abstract
The once-weekly Bydureon® (Bdn) PLGA microsphere formulation encapsulating the GLP-1 receptor agonist, exenatide acetate, is an important complex injectable product prepared by coacervation for the treatment of type 2 diabetic patients. Encapsulation by coacervation is useful to minimize an undesirable initial burst of exenatide, but it suffers from manufacturing difficulties such as process scale-up and batch-to-batch variations. Herein we prepared exenatide acetate-PLGA formulations of similar compositions using the desirable alternative double emulsion-solvent evaporation technique. After screening several process variables, we varied the PLGA concentration, the hardening temperature, and the collected particle size range, and determined the resulting drug and sucrose loading, initial burst release, in vitro retention kinetics, and peptide degradation profiles using Bdn as a positive control. All formulations exhibited a triphasic release profile with a burst, lag, and rapid release phase, although the burst release was greatly decreased to <5% for some. Marked differences were observed in the peptide degradation profiles, particularly the oxidized and acylated fractions, when the polymer concentration was varied. For one optimal formulation, the release and peptide degradation profiles were similar to Bdn microspheres, albeit with an induction time shift of one week, likely due to the slightly higher Mw of PLGA in Bdn. These results highlight the effects of key manufacturing variables on drug release and stability in composition-equivalent microspheres encapsulating exenatide acetate and indicate the potential of manufacturing the microsphere component of Bdn by solvent evaporation.
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Affiliation(s)
- Aishwarya Chandrashekar
- Department of Pharmaceutical Sciences and the Biointerfaces Institute, University of Michigan, 2800 Plymouth Road, Ann Arbor, MI 48109, USA
| | - Avital Beig
- Department of Pharmaceutical Sciences and the Biointerfaces Institute, University of Michigan, 2800 Plymouth Road, Ann Arbor, MI 48109, USA
| | - Yan Wang
- Office of Research and Standards, Office of Generic Drugs, Center for Drug Evaluation and Research, U.S. Food and Drug Administration, Silver Spring, MD 20993, USA
| | - Steven P Schwendeman
- Department of Pharmaceutical Sciences and the Biointerfaces Institute, University of Michigan, 2800 Plymouth Road, Ann Arbor, MI 48109, USA; Department of Biomedical Engineering, University of Michigan, 2200 Bonisteel Blvd., Ann Arbor, MI 48109, USA.
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10
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Fan B, Torres García D, Salehi M, Webber MJ, van Kasteren SI, Eelkema R. Dynamic Covalent Dextran Hydrogels as Injectable, Self-Adjuvating Peptide Vaccine Depots. ACS Chem Biol 2023; 18:652-659. [PMID: 36799174 PMCID: PMC10028604 DOI: 10.1021/acschembio.2c00938] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/18/2023]
Abstract
Dextran-based hydrogels are promising therapeutic materials for drug delivery, tissue regeneration devices, and cell therapy vectors, due to their high biocompatibility, along with their ability to protect and release active therapeutic agents. This report describes the synthesis, characterization, and application of a new dynamic covalent dextran hydrogel as an injectable depot for peptide vaccines. Dynamic covalent crosslinks based on double Michael addition of thiols to alkynones impart the dextran hydrogel with shear-thinning and self-healing capabilities, enabling hydrogel injection. These injectable, non-toxic hydrogels show adjuvant potential and have predictable sub-millimolar loading and release of the peptide antigen SIINFEKL, which after its release is able to activate T-cells, demonstrating that the hydrogels deliver peptides without modifying their immunogenicity. This work demonstrates the potential of dynamic covalent dextran hydrogels as a sustained-release material for the delivery of peptide vaccines.
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Affiliation(s)
- Bowen Fan
- Department of Chemical Engineering, Delft University of Technology, Van der Maasweg 9, 2629 HZ Delft, The Netherlands
- Department of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame, Indiana 46556, United States
| | - Diana Torres García
- Division of Bio-Organic Synthesis, Leiden Institute of Chemistry and Institute of Chemical Immunology, Leiden University, Gorlaeus Laboratory, Einsteinweg 55, 2333 CC Leiden, The Netherlands
| | - Marziye Salehi
- Department of Chemical Engineering, Delft University of Technology, Van der Maasweg 9, 2629 HZ Delft, The Netherlands
- Division of Bio-Organic Synthesis, Leiden Institute of Chemistry and Institute of Chemical Immunology, Leiden University, Gorlaeus Laboratory, Einsteinweg 55, 2333 CC Leiden, The Netherlands
| | - Matthew J Webber
- Department of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame, Indiana 46556, United States
| | - Sander I van Kasteren
- Division of Bio-Organic Synthesis, Leiden Institute of Chemistry and Institute of Chemical Immunology, Leiden University, Gorlaeus Laboratory, Einsteinweg 55, 2333 CC Leiden, The Netherlands
| | - Rienk Eelkema
- Department of Chemical Engineering, Delft University of Technology, Van der Maasweg 9, 2629 HZ Delft, The Netherlands
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11
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Recent Advances in Pickering Double Emulsions and Potential Applications in Functional Foods: A Perspective Paper. Foods 2023; 12:foods12050992. [PMID: 36900509 PMCID: PMC10001147 DOI: 10.3390/foods12050992] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2022] [Revised: 02/13/2023] [Accepted: 02/24/2023] [Indexed: 03/02/2023] Open
Abstract
Double emulsions are complex emulsion systems with a wide range of applications across different fields, such as pharmaceutics, food and beverage, materials sciences, personal care, and dietary supplements. Conventionally, surfactants are required for the stabilization of double emulsions. However, due to the emerging need for more robust emulsion systems and the growing trends for biocompatible and biodegradable materials, Pickering double emulsions have attracted increasing interest. In comparison to double emulsions stabilized solely by surfactants, Pickering double emulsions possess enhanced stability due to the irreversible adsorption of colloidal particles at the oil/water interface, while adopting desired environmental-friendly properties. Such advantages have made Pickering double emulsions rigid templates for the preparation of various hierarchical structures and as potential encapsulation systems for the delivery of bioactive compounds. This article aims to provide an evaluation of the recent advances in Pickering double emulsions, with a special focus on the colloidal particles employed and the corresponding stabilization strategies. Emphasis is then devoted to the applications of Pickering double emulsions, from encapsulation and co-encapsulation of a wide range of active compounds to templates for the fabrication of hierarchical structures. The tailorable properties and the proposed applications of such hierarchical structures are also discussed. It is hoped that this perspective paper will serve as a useful reference on Pickering double emulsions and will provide insights toward future studies in the fabrication and applications of Pickering double emulsions.
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12
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Aguiar A, Mariquito A, Gonçalves D, Pinho I, Marques AC. Biodegradable Microcapsules of Poly(Butylene Adipate- co-Terephthalate) (PBAT) as Isocyanate Carriers and the Effect of the Process Parameters. Polymers (Basel) 2023; 15:polym15030665. [PMID: 36771965 PMCID: PMC9921966 DOI: 10.3390/polym15030665] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2023] [Revised: 01/24/2023] [Accepted: 01/26/2023] [Indexed: 01/31/2023] Open
Abstract
Poly(butylene adipate-co-terephthalate) (PBAT), a biodegradable flexible, and tough polymer is herein used, for the first time, to encapsulate and protect isocyanate derivatives. Isocyanates are essential building blocks widely employed in the chemical industry for the production of high-performing materials. Microencapsulation of isocyanates eliminates the risks associated with their direct handling and protects them from moisture. In light of this, and having in mind eco-innovative products and sustainability, we present a straightforward process to encapsulate isophorone diisocyanate (IPDI) using this biodegradable polymer. Spherical and core-shell microcapsules (MCs) were produced by an emulsion system combined with the solvent evaporation method. The MCs present a regular surface, without holes or cracks, with a thin shell and high isocyanate loadings, up to 79 wt%. Additionally, the MCs showed very good isocyanate protection if not dispersed in organic or aqueous solutions. Effects of various process parameters were systematically studied, showing that a higher stirring speed (1000 rpm) and emulsifier amount (2.5 g), as well as a smaller PBAT amount (1.60 g), lead to smaller MCs and narrower size distribution.
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Affiliation(s)
- António Aguiar
- CERENA, DEQ, Instituto Superior Técnico, Universidade de Lisboa, Avenida Rovisco Pais, 1049-001 Lisboa, Portugal
- CIPADE—Indústria e Investigação de Produtos Adesivos, SA., Av. Primeiro de Maio 121, 3700-227 São João da Madeira, Portugal
- Correspondence: (A.A.); (A.C.M.)
| | - António Mariquito
- CERENA, DEQ, Instituto Superior Técnico, Universidade de Lisboa, Avenida Rovisco Pais, 1049-001 Lisboa, Portugal
| | - Diogo Gonçalves
- CERENA, DEQ, Instituto Superior Técnico, Universidade de Lisboa, Avenida Rovisco Pais, 1049-001 Lisboa, Portugal
| | - Isabel Pinho
- CIPADE—Indústria e Investigação de Produtos Adesivos, SA., Av. Primeiro de Maio 121, 3700-227 São João da Madeira, Portugal
| | - Ana C. Marques
- CERENA, DEQ, Instituto Superior Técnico, Universidade de Lisboa, Avenida Rovisco Pais, 1049-001 Lisboa, Portugal
- Correspondence: (A.A.); (A.C.M.)
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13
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Park H, Ha E, Kim J, Kim M. Injectable sustained‐release poly(lactic‐co‐glycolic acid) (PLGA) microspheres of exenatide prepared by supercritical fluid extraction of emulsion process based on a design of experiment approach. Bioeng Transl Med 2023; 8:e10485. [DOI: 10.1002/btm2.10485] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2022] [Revised: 11/18/2022] [Accepted: 12/22/2022] [Indexed: 01/03/2023] Open
Affiliation(s)
- Heejun Park
- College of Pharmacy Duksung Women's University Seoul South Korea
| | - Eun‐Sol Ha
- College of Pharmacy Pusan National University Busan South Korea
| | - Jeong‐Soo Kim
- Dong‐A ST Research Institute Dong‐A ST Co. Ltd. Giheung‐gu Yongin‐si Gyeonggi South Korea
| | - Min‐Soo Kim
- College of Pharmacy Pusan National University Busan South Korea
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14
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Kaptan Y, Güvenilir Y. Polycaprolactone/epoxide-functionalized silica composite microparticles for long-term controlled release of trans-chalcone. JOURNAL OF POLYMER ENGINEERING 2022. [DOI: 10.1515/polyeng-2021-0343] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Abstract
In this study, controlled release of trans-chalcone was achieved by using a polycaprolactone-based hybrid system as the drug carrier material. Encapsulation efficiency was obtained in the range of 70–75% for various formulations and in vitro release studies, conducted at 37 °C and pH 7.4, revealed slow profile reaching 60% cumulative release. As interpreted from kinetic modelling, drug release was controlled mainly by Fickian diffusion; polymer erosion did not contribute to the TC release. Difference in drug loading efficiencies of the hybrid and neat PCL microparticles was observed such that PCL microparticles had lower loading efficiency than the hybrid microparticles whereas the release profiles were similar. pH of the release medium had affected release profiles; acidic medium enhanced drug release. Characterization of the microparticles were realized by FT-IR, TGA, DSC, SEM and WCA which revealed key properties such as molecular dispersion state and hydrophilicity. With the results obtained, we concluded that our hybrid system has a significant potential for long term release of trans-chalcone.
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Affiliation(s)
- Yasemin Kaptan
- Department of Chemical Engineering , Istanbul Technical University , İstanbul 34469 , Turkey
| | - Yüksel Güvenilir
- Department of Chemical Engineering , Istanbul Technical University , İstanbul 34469 , Turkey
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15
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Li L, Li Z, Guo Y, Zhang K, Mi W, Liu J. Preparation of uniform-sized GeXIVA[1,2]-loaded PLGA microspheres as long-effective release system with high encapsulation efficiency. Drug Deliv 2022; 29:2283-2295. [PMID: 35866254 PMCID: PMC9310807 DOI: 10.1080/10717544.2022.2089297] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
The purpose of this study was to prepare GeXIVA[1,2] PLGA microspheres by W/O/W re-emulsification-solvent evaporation technology and to develop sustained-release formulations to meet the clinical treatment needs of chronic neuropathic pain. Through prescription optimization, the uniformity of particle size and the encapsulation efficiency is improved, so as to achieve the quality standard of the microspheres. The mechanism of trehalose improving the stability of GeXIVA[1,2] was studied and verified by molecular simulation. The results showed that when adding trehalose to W1, using the PLGA model of 75:25, PLGA concentration of 30%, PVA concentration of 1.5%, adding 1% NaCl to PVA and adding 1% NaCl to solidification water, the prepared microspheres are smooth, the particle size is about 25 μm, and the encapsulation rate reaches 90%. The results of in vitro release experiments showed that the microspheres could be released steadily for about 30 days. The microsphere samples were characterized and analyzed by molecular simulation and powder X-ray diffractometer, and the protective mechanism of trehalose on GeXIVA[1,2] was discussed. The results showed that the hydrogen bond formed between trehalose and GeXIVA[1,2] acted as a hydration film and played a certain protective role on GeXIVA[1,2]. In addition, high-viscosity trehalose can form a glass state and wrap around GeXIVA[1,2], reducing the free movement of molecules. In the microsphere system, trehalose can also avoid the influence of PLGA material on the secondary structure of GeXIVA[1,2]. In conclusion, this study is expected to provide a new therapeutic strategy for the treatment of chronic neuropathic pain.
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Affiliation(s)
- Lu Li
- Heilongjiang University of Traditional Chinese medicine, Harbin, China.,Institute of Pharmacology and Toxicology, Academy of Military Medical Sciences, Beijing, China
| | - Zhiguo Li
- Institute of Pharmacology and Toxicology, Academy of Military Medical Sciences, Beijing, China
| | - Yongxin Guo
- Department of Anesthesiology, The First Medical Center of the PLA General Hospital, Beijing, China
| | - Kai Zhang
- Department of Anesthesiology, The First Medical Center of the PLA General Hospital, Beijing, China
| | - Weidong Mi
- Department of Anesthesiology, The First Medical Center of the PLA General Hospital, Beijing, China
| | - Jing Liu
- Department of Anesthesiology, The First Medical Center of the PLA General Hospital, Beijing, China
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16
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Kaptan Y, Güvenilir Y. Enzymatic PCL-grafting to NH 2-end grouped silica and development of microspheres for pH-stimulated release of a hydrophobic model drug. Eur J Pharm Biopharm 2022; 181:60-78. [PMID: 36347484 DOI: 10.1016/j.ejpb.2022.11.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2022] [Revised: 10/24/2022] [Accepted: 11/01/2022] [Indexed: 11/07/2022]
Abstract
This study set out to evaluate novel PCL-based silica containing nanohybrids as the polymer matrix in a hydrophobic drug-loaded microsphere system. Nanohybrids were synthesized by PCL-grafting to NH2-end grouped silica by in situ enzymatic ring opening polymerization of ε-caprolactone. Molecular weight and monomer conversion, PCL grafting percentage, thermal properties and crystallinity of the nanohybrids were determined by 1H NMR, TGA, DSC and XRD. Synthesized nanohybrids had low crystallinity percentage (32 and 39 %) and molecular weight (4800 and 8700 g/mol), promising for controlled drug release applications. The nanohybrids were used for fabrication of trans-chalcone-loaded microspheres by O/W single emulsion solvent evaporation. Mean particle diameter of the microspheres were between 15 and 30 µm. The result of release studies showed that optimum microsphere formulations (AP4 and A2, respectively) had 61 and 64 % encapsulation efficiency. One of the more significant findings to emerge from this investigation is that TC release was extended to 16 and 37 days, in a controlled manner. TC release was significantly enhanced in acidic pH media (pH 3.6 and 5.6) indicating pH-dependent release from nanohybrid microspheres; releasing 80-100 % of the loaded drug in 4-14 days. Drug/polymer interactions and molecular structures were investigated by FT-IR spectroscopy and DSC analysis. According to the results obtained, enzymatically synthesized nanohybrids have potential for pH-dependent release of the model drug, trans-chalcone.
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Affiliation(s)
- Yasemin Kaptan
- Istanbul Technical University, Department of Chemical Engineering, Istanbul Technical University, 34469 Maslak-Istanbul, Turkey.
| | - Yüksel Güvenilir
- Istanbul Technical University, Department of Chemical Engineering, Istanbul Technical University, 34469 Maslak-Istanbul, Turkey
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17
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Yenying A, Tangamatakul K, Supanchart C, Jenvoraphot T, Manokruang K, Worajittiphon P, Punyodom W, Daranarong D. Preparation and Characterization of PLG Microparticles by the Multiple Emulsion Method for the Sustained Release of Proteins. MICROMACHINES 2022; 13:1761. [PMID: 36296114 PMCID: PMC9607503 DOI: 10.3390/mi13101761] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Revised: 10/10/2022] [Accepted: 10/12/2022] [Indexed: 06/16/2023]
Abstract
Rapid release and diminished stability are two of the limitations associated with the growth factors that are essentially used in dental applications. These growth factors are employed to enhance the quality and quantity of tissue or bone matter during regeneration. Therefore, drug delivery devices and systems have been developed to address these limitations. In this study, bovine serum albumin (BSA), as a representative growth factor, was successfully sustained by encapsulation with the medium-absorbable copolymer, poly(L-lactide-co-glycolide) (PLG) 70:30% mol, via the multiple emulsion method. Different PLG, PVA, and BSA concentrations were used to investigate their effects on the BSA encapsulation efficiency. The suitable ratios leading to a better characterization of microparticles and a higher encapsulation efficiency in producing encapsulated PLG microparticles were 8% (w/v) of PLG, 0.25% (w/v) of PVA, and 8% (w/v) of BSA. Furthermore, an in vitro release study revealed a bursting release of BSA from the encapsulated PLG microsphere in the early phase of development. Subsequently, a gradual release was observed over a period of eight weeks. Furthermore, to encapsulate LL-37, different proteins were used in conjunction with PLG under identical conditions with regard to the loading efficiency and morphology, thereby indicating high variations and poor reproducibility. In conclusion, the encapsulated PLG microparticles could effectively protect the protein during encapsulation and could facilitate sustainable protein release over a period of 60 days. Importantly, an optimal method must be employed in order to achieve a high degree of encapsulation efficiency for all of the protein or growth factors. Accordingly, the outcomes of this study will be useful in the manufacture of drug delivery devices that require medium-sustained release growth factors, particularly in dental treatments.
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Affiliation(s)
- Arphaphat Yenying
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Krissana Tangamatakul
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Chayarop Supanchart
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Thannaphat Jenvoraphot
- Bioplastic Production Laboratory for Medical Application, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Kiattikhun Manokruang
- Department of Chemistry, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Patnarin Worajittiphon
- Bioplastic Production Laboratory for Medical Application, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand
- Department of Chemistry, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Winita Punyodom
- Bioplastic Production Laboratory for Medical Application, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand
- Department of Chemistry, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Donraporn Daranarong
- Bioplastic Production Laboratory for Medical Application, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand
- Science and Technology Research Institute, Chiang Mai University, Chiang Mai 50200, Thailand
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18
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Nahar UJ, Toth I, Skwarczynski M. Mannose in vaccine delivery. J Control Release 2022; 351:284-300. [PMID: 36150579 DOI: 10.1016/j.jconrel.2022.09.038] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Revised: 09/15/2022] [Accepted: 09/16/2022] [Indexed: 11/16/2022]
Abstract
Adjuvants and vaccine delivery systems are used widely to improve the efficacy of vaccines. Their primary roles are to protect antigen from degradation and allow its delivery and uptake by antigen presenting cells (APCs). Carbohydrates, including various structures/forms of mannose, have been broadly utilized to target carbohydrate binding receptors on APCs. This review summarizes basic functions of the immune system, focusing on the role of mannose receptors in antigen recognition by APCs. The most popular strategies to produce mannosylated vaccines via conjugation and formulation are presented. The efficacy of mannosylated vaccines is discussed in detail, taking into consideration factors, such as valency and number of mannose in mannose ligands, mannose density, length of spacers, special arrangement of mannose ligands, and routes of administration of mannosylated vaccines. The advantages and disadvantages of mannosylation strategy and future directions in the development of mannosylated vaccines are also debated.
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Affiliation(s)
- Ummey Jannatun Nahar
- School of Chemistry and Molecular Biosciences, The University of Queensland, St. Lucia, QLD 4072, Australia
| | - Istvan Toth
- School of Chemistry and Molecular Biosciences, The University of Queensland, St. Lucia, QLD 4072, Australia; Institute for Molecular Bioscience, The University of Queensland, St. Lucia, QLD 4072, Australia; School of Pharmacy, The University of Queensland, Woolloongabba, QLD 4102, Australia
| | - Mariusz Skwarczynski
- School of Chemistry and Molecular Biosciences, The University of Queensland, St. Lucia, QLD 4072, Australia.
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19
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Bodin JB, Gateau J, Coïs J, Lucas T, Lefebvre F, Moine L, Noiray M, Cailleau C, Denis S, Clavier G, Tsapis N, Méallet-Renault R. Biocompatible and Photostable Photoacoustic Contrast Agents as Nanoparticles Based on Bodipy Scaffold and Polylactide Polymers: Synthesis, Formulation, and In Vivo Evaluation. ACS APPLIED MATERIALS & INTERFACES 2022; 14:40501-40512. [PMID: 36044427 DOI: 10.1021/acsami.2c04874] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
We have designed a new Bodipy scaffold for efficient in vivo photoacoustic (PA) imaging of nanoparticles commonly used as drug nanovectors. The new dye has an optimized absorption band in the near-infrared window in biological tissue and a low fluorescence quantum yield that leads to a good photoacoustic generation efficiency. After Bodipy-initiated ring-opening polymerization of lactide, the polylactide-Bodipy was formulated into PEGylated nanoparticles (NPs) by mixing with PLA-PEG at different concentrations. Formulated NPs around 100 nm exhibit excellent PA properties: an absorption band at 760 nm and a molar absorption coefficient in between that of molecular PA absorbers and gold NPs. Highly improved photostability compared to cyanine-labeled PLA NPs as well as innocuity in cultured macrophages were demonstrated. After intravenous injection in healthy animals, NPs were easily detected using a commercial PA imaging system and spectral unmixing, opening the way to their use as theranostic agents.
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Affiliation(s)
- Jean-Baptiste Bodin
- Université Paris-Saclay, CNRS, Institut des Sciences Moléculaires d'Orsay, 91405 Orsay, France
| | - Jérôme Gateau
- Sorbonne Université, CNRS, INSERM, Laboratoire d'Imagerie Biomédicale, LIB, F-75006 Paris, France
| | - Justine Coïs
- Université Paris-Saclay, ENS Paris-Saclay, CNRS, PPSM, 91190 Gif-sur-Yvette, France
| | - Théotim Lucas
- Sorbonne Université, CNRS, INSERM, Laboratoire d'Imagerie Biomédicale, LIB, F-75006 Paris, France
| | - Flora Lefebvre
- Université Paris-Saclay, CNRS, Institut Galien Paris-Saclay, 91400 Orsay, France
| | - Laurence Moine
- Université Paris-Saclay, CNRS, Institut Galien Paris-Saclay, 91400 Orsay, France
| | - Magali Noiray
- Université Paris-Saclay, CNRS, Institut Galien Paris-Saclay, 91400 Orsay, France
| | - Catherine Cailleau
- Université Paris-Saclay, CNRS, Institut Galien Paris-Saclay, 91400 Orsay, France
| | - Stéphanie Denis
- Université Paris-Saclay, CNRS, Institut Galien Paris-Saclay, 91400 Orsay, France
| | - Gilles Clavier
- Université Paris-Saclay, ENS Paris-Saclay, CNRS, PPSM, 91190 Gif-sur-Yvette, France
| | - Nicolas Tsapis
- Université Paris-Saclay, CNRS, Institut Galien Paris-Saclay, 91400 Orsay, France
| | - Rachel Méallet-Renault
- Université Paris-Saclay, CNRS, Institut des Sciences Moléculaires d'Orsay, 91405 Orsay, France
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20
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Muhaimin M, Chaerunisaa AY, Bodmeier R. Polymer type effect on PLGA-based microparticles preparation by solvent evaporation method with single emulsion system using focussed beam reflectance measurement. J Microencapsul 2022; 39:512-521. [PMID: 36089916 DOI: 10.1080/02652048.2022.2116120] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
AIM This study aimed to investigate the effect of polymer type on solidification rate of PLGA polymeric microparticles and particle size/distribution of the emulsion droplets/hardened PLGA polymeric microparticles during solvent evaporation process using FBRM (Focussed Beam Reflectance Measurement). METHODS PLGA polymeric microparticles were prepared by an O/W solvent evaporation method using various PLGA polymers, including PLGA Resomer® RG503H, RG502H and RG752H. The particle size mean, chord length distribution (CLD), and chord count of the emulsion droplets/hardened microparticles were monitored by FBRM. The morphology of polymeric microparticles were characterised by optical microscopy and scanning electron microscopy (SEM). RESULTS The transformation of the emulsion droplets into solid microparticles occurred within the first 30 (± 1.04), 34 (± 1.15) and 37 (± 0.82) min and square weighted mean chord lengths are 64.08 (± 3.18), 52.36 (± 5.27) and 42.18 (± 4.61) µm when PLGA Resomer® RG503H, RG502H and RG752H were used respectively. Larger square weighted mean chord length of PLGA polymeric microparticles gave lower chord counts. PLGA RG752H microparticles gave smallest square weighted mean chord length and the chord counts was the highest. The CLDs measured by FBRM showed that a larger particle size mean gave longer CLD and a lower peak of particle number. SEM data revealed that the morphology of microparticles was influenced by type and physical properties of polymer. CONCLUSIONS FBRM can be employed for online monitoring of the shift in the microparticle CLD and detect transformation of the emulsion droplets into solid microparticles during the solvent evaporation process. The microparticle CLD and transformation process were strongly influenced by polymer type.
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Affiliation(s)
| | | | - Roland Bodmeier
- College of Pharmacy, Freie Universität Berlin, Berlin, Germany
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Yawalkar AN, Pawar MA, Vavia PR. Microspheres for targeted drug delivery- A review on recent applications. J Drug Deliv Sci Technol 2022. [DOI: 10.1016/j.jddst.2022.103659] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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22
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Polyester-Based Coatings for Corrosion Protection. Polymers (Basel) 2022; 14:polym14163413. [PMID: 36015670 PMCID: PMC9415685 DOI: 10.3390/polym14163413] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2022] [Revised: 07/19/2022] [Accepted: 07/30/2022] [Indexed: 11/16/2022] Open
Abstract
The article is the first review encompassing the study and the applications of polyester-based coatings for the corrosion protection of steel. The impact of corrosion and the challenges encountered thus far and the solutions encountered in industry are addressed. Then, the use of polyesters as a promising alternative to current methods, such as phosphating, chromating, galvanization, and inhibitors, are highlighted. The classifications of polyesters and the network structure determine the overall applications and performance of the polymer. The review provides new trends in green chemistry and smart and bio-based polyester-based coatings. Finally, the different applications of polyesters are covered; specifically, the use of polyesters in surface coatings and for other industrial uses is discussed.
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Formulation and optimization of Paliperidone palmitate biodegradable injectable microspheres using Box-Behnken design. J Drug Deliv Sci Technol 2022. [DOI: 10.1016/j.jddst.2022.103609] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Chavda VP, Jogi G, Shah N, Athalye MN, Bamaniya N, K Vora L, Cláudia Paiva-Santos A. Advanced particulate carrier-mediated technologies for nasal drug delivery. J Drug Deliv Sci Technol 2022. [DOI: 10.1016/j.jddst.2022.103569] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/09/2022]
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Impact of dispersion time interval and particle size on release profiles of propranolol HCl and carbamazepines from microparticle blends system. Sci Rep 2022; 12:10360. [PMID: 35726009 PMCID: PMC9209490 DOI: 10.1038/s41598-022-14678-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2022] [Accepted: 06/10/2022] [Indexed: 12/14/2022] Open
Abstract
The objective of this study was to investigate the effect of dispersion time interval (DTI) on physicochemical properties of drug following the incorporation of propranolol HCl (Pro) and carbamazepine (CBZ) within ethyl cellulose (EC) microparticle blends using solvent evaporation method. The first Pro emulsion and second CBZ oil phase were dispersed in an external aqueous phase, with DTI of 0 and 60 min. The morphology of microparticle blends were characterized by SEM. The particle size mean of the emulsion droplets/hardened microparticles were monitored by FBRM. Encapsulation efficiency (EE) and in vitro drug release were also investigated. The resulting microparticle blends were spherical and formed two populations. The particle size mean of microparticle blends ranged from 113.27 µm to 122.42 µm. The EE was 77.28% to 78.64% for Pro and 96.48% to 98.64% for CBZ. FBRM studies showed that the size of microparticle blend prepared as W/O/W (Pro) and O/W (CBZ) system with DTI of 60 min and stirring time 4 h were larger than those prepared with DTI of 0 min. In vitro drug release studies after 28 days that revealed the CBZ release (58.72%) was faster than Pro release (43.16%). Investigation on surface morphology by SEM showed that the second drug CBZ which added as the oil phase in the W/O/W emulsion system had blocked the pores on the surface Pro microparticles prepared from the first primary emulsion, therefore affecting the drug release. This blocking effects of second drug (CBZ) on first emulsion microparticles (Pro) depended on the DTI. This phenomenon is only applicable if the first primary emulsion is W/O/W system.
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Chen BQ, Liu H, Zhao Y, Lu XC, Zhang CY, Kankala RK, Wang SB, Chen AZ. Preparation of astragaloside IV (AS-IV) nanoparticles via SAS process for anticancer efficacy: optimization based on Box-Behnken Design. J Supercrit Fluids 2022. [DOI: 10.1016/j.supflu.2022.105650] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Intra-amniotic Injection of Poly(lactic-co-glycolic Acid) Microparticles Loaded with Growth Factor: Effect on Tissue Coverage and Cellular Apoptosis in the Rat Model of Myelomeningocele. J Am Coll Surg 2022; 234:1010-1019. [PMID: 35703790 DOI: 10.1097/xcs.0000000000000156] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND Myelomeningocele (MMC) is a devastating congenital neurologic disorder that can lead to lifelong morbidity and has limited treatment options. This study investigates the use of poly(lactic-co-glycolic acid) (PLGA) microparticles (MPs) loaded with fibroblast growth factor (FGF) as a platform for in utero treatment of MMC. STUDY DESIGN Intra-amniotic injections of PLGA MPs were performed on gestational day 17 (E17) in all-trans retinoic acid-induced MMC rat dams. MPs loaded with fluorescent dye (DiO) were evaluated 3 hours after injection to determine incidence of binding to the MMC defect. Fetuses were then treated with PBS or PLGA particles loaded with DiO, bovine serum albumin, or FGF and evaluated at term (E21). Fetuses with MMC defects were evaluated for gross and histologic evidence of soft tissue coverage. The effect of PLGA-FGF treatment on spinal cord cell death was evaluated using an in situ cell death kit. RESULTS PLGA-DiO MPs had a binding incidence of 86% and 94% 3 hours after injection at E17 for doses of 0.1 mg and 1.2 mg, respectively. Incidence of soft tissue coverage at term was 19% (4 of 21), 22% (2 of 9), and 83% (5 of 6) for PLGA-DiO, PLGA-BSA, and PLGA-FGF, respectively. At E21, the percentage of spinal cord cells positive for in situ cell death was significantly higher in MMC controls compared with wild-type controls or MMC pups treated with PLGA-FGF. CONCLUSION PLGA MPs are an innovative minimally invasive platform for induction of soft tissue coverage in the rat model of MMC and may reduce cellular apoptosis.
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Lopez-Cazares G, Eniola-Adefeso O. Dual Coating of Chitosan and Albumin Negates the Protein Corona-Induced Reduced Vascular Adhesion of Targeted PLGA Microparticles in Human Blood. Pharmaceutics 2022; 14:pharmaceutics14051018. [PMID: 35631604 PMCID: PMC9143524 DOI: 10.3390/pharmaceutics14051018] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2022] [Revised: 04/30/2022] [Accepted: 05/06/2022] [Indexed: 12/13/2022] Open
Abstract
Vascular-targeted carriers (VTCs) have the potential to localize therapeutics and imaging agents to inflamed, diseased sites. Poly (lactic-co-glycolic acid) (PLGA) is a negatively charged copolymer commonly used to construct VTCs due to its biodegradability and FDA approval. Unfortunately, PLGA VTCs experienced reduced adhesion to inflamed endothelium in the presence of human plasma proteins. In this study, PLGA microparticles were coated with chitosan (CS), human serum albumin (HSA), or both (HSA-CS) to improve adhesion. The binding of sialyl Lewis A (a ligand for E-selectin)-targeted PLGA, HSA-PLGA, CSPLGA, and HSA-CSPLGA to activated endothelial cells was evaluated in red blood cells in buffer or plasma flow conditions. PLGA VTCs with HSA-only coating showed improvement and experienced 35–52% adhesion in plasma compared to plasma-free buffer conditions across all shear rates. PLGA VTCs with dual coating—CS and HSA—maintained 80% of their adhesion after exposure to plasma at low and intermediate shears and ≈50% at high shear. Notably, the protein corona characterization showed increases at the 75 and 150 kDa band intensities for HSA-PLGA and HSA-CSPLGA, which could correlate to histidine-rich glycoprotein and immunoglobulin G. The changes in protein corona on HSA-coated particles seem to positively influence particle binding, emphasizing the importance of understanding plasma protein–particle interactions.
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Affiliation(s)
- Genesis Lopez-Cazares
- Department of Chemical Engineering, University of Michigan, Ann Arbor, MI 48109, USA;
| | - Omolola Eniola-Adefeso
- Department of Chemical Engineering, University of Michigan, Ann Arbor, MI 48109, USA;
- Biointerfaces Institute, University of Michigan, Ann Arbor, MI 48109, USA
- Correspondence: ; Tel.: +1-734-936-0856
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Obaidat R, Al-Ghzawi B, Al-Taani B, Al-Shar’i N. Co-crystallization of Amoxicillin Trihydrate and Potassium Clavulanate Provides a Promising Approach for Preparation of Sustained-Release Microspheres. AAPS PharmSciTech 2022; 23:131. [PMID: 35501579 DOI: 10.1208/s12249-022-02273-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Accepted: 04/05/2022] [Indexed: 11/30/2022] Open
Abstract
This work aimed to prepare sustained-release microspheres for amoxicillin trihydrate and potassium clavulanate. Co-crystals of amoxicillin trihydrate and potassium clavulanate were prepared using three different techniques, including supercritical fluid technology. Full characterization was performed for the prepared co-crystals, including molecular dynamic simulation. Next, the co-crystals were microencapsulated with ethylcellulose using the emulsion solvent evaporation method in spherical microspheres. Physicochemical characterizations for the prepared co-crystal were performed using FTIR, DSC, and PXRD. Finally, scanning electron microscopy was used to assess the morphology of the prepared microspheres. Physicochemical studies showed the solid-state interaction between amoxicillin trihydrate and potassium clavulanate in the prepared co-crystals. The total energy suggested differences between the three methods of co-crystal preparations suggesting some structural changes have occurred with better stabilization at supercritical fluid technology. Encapsulation of the co-crystals was successfully performed using ethylcellulose polymer. The in vitro release studies revealed sustained-release profiles for the co-crystal microspheres. Potassium clavulanate was released at a lower rate from the crystal microspheres prepared using co-crystals than the release in microspheres of potassium clavulanate alone. The empirical Higuchi model best fitted the in vitro release profile for amoxicillin trihydrate-potassium clavulanate co-crystal microspheres.
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Ramachandran JP, Antony A, Ramakrishnan RM, Wallen SL, Raveendran P. CO2-solvated liquefaction of polyethylene glycol (PEG): A novel, green process for the preparation of drug-excipient composites at low temperatures. J CO2 UTIL 2022. [DOI: 10.1016/j.jcou.2022.101971] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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31
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Al Hagbani T, Vishwa B, Abu Lila AS, Alotaibi HF, Khafagy ES, Moin A, Gowda DV. Pulmonary Targeting of Levofloxacin Using Microsphere-Based Dry Powder Inhalation. Pharmaceuticals (Basel) 2022; 15:ph15050560. [PMID: 35631386 PMCID: PMC9145307 DOI: 10.3390/ph15050560] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Revised: 04/25/2022] [Accepted: 04/27/2022] [Indexed: 02/01/2023] Open
Abstract
The objective of the current study was to develop poly (lactic-co-glycolic acid) (PLGA) microspheres loaded with the anti-tuberculosis (anti-TB) fluoroquinolone, Levofloxacin (LVX), in the form of dry powder inhalation (DPI). LVX-loaded microspheres were fabricated by solvent evaporation technique. Central Composite Design (CCD) was adopted to optimize the microspheres, with desired particle size, drug loading, and drug entrapment efficiency, for targeting alveolar macrophages via non-invasive pulmonary delivery. Structural characterization studies by differential scanning calorimetry (DSC), Fourier transform infrared (FTIR) spectroscopy, and X-ray diffraction analysis revealed the absence of any possible chemical interaction between the drug and the polymer used for the preparation of microspheres. In addition, the optimized drug-loaded microspheres exhibited desired average aerodynamic diameter of 2.13 ± 1.24 μm and fine particle fraction of 75.35 ± 1.42%, indicating good aerosolization properties. In vivo data demonstrated that LVX-loaded microspheres had superior lung accumulation, as evident by a two-fold increase in the area under the curve AUC0–24h, as compared with plain LVX. Furthermore, LVX-loaded microspheres prolonged drug residence time in the lung and maintained a relatively high drug concentration for a longer time, which contributed to a reduced leakage in the systemic circulation. In conclusion, inhalable LVX-loaded microspheres might represent a plausible delivery vehicle for targeting pulmonary tuberculosis via enhancing the therapeutic efficacy of LVX while minimizing its systemic off-target side effects.
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Affiliation(s)
- Turki Al Hagbani
- Department of Pharmaceutics, College of Pharmacy, University of Hail, Hail 81442, Saudi Arabia; (T.A.H.); (A.S.A.L.)
| | - Bhavya Vishwa
- Department of Pharmaceutics, JSS College of Pharmacy, Mysuru 570015, India;
| | - Amr S. Abu Lila
- Department of Pharmaceutics, College of Pharmacy, University of Hail, Hail 81442, Saudi Arabia; (T.A.H.); (A.S.A.L.)
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Zagazig University, Zagazig 44519, Egypt
| | - Hadil Faris Alotaibi
- Department of Pharmaceutical Sciences, College of Pharmacy, Princess Nourah bint AbdulRahman University, Riyadh 11671, Saudi Arabia;
| | - El-Sayed Khafagy
- Department of Pharmaceutics, College of Pharmacy, Prince Sattam bin Abdulaziz University, Al-kharj 11942, Saudi Arabia;
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Suez Canal University, Ismailia 41522, Egypt
| | - Afrasim Moin
- Department of Pharmaceutics, College of Pharmacy, University of Hail, Hail 81442, Saudi Arabia; (T.A.H.); (A.S.A.L.)
- Correspondence: (A.M.); (D.V.G.); Tel.: +966-506-179-499 (A.M.); +91-966-316-2455 (D.V.G.)
| | - Devegowda V. Gowda
- Department of Pharmaceutics, JSS College of Pharmacy, Mysuru 570015, India;
- Correspondence: (A.M.); (D.V.G.); Tel.: +966-506-179-499 (A.M.); +91-966-316-2455 (D.V.G.)
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Microencapsulation of Essential Oils: A Review. Polymers (Basel) 2022; 14:polym14091730. [PMID: 35566899 PMCID: PMC9099681 DOI: 10.3390/polym14091730] [Citation(s) in RCA: 25] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2022] [Revised: 04/12/2022] [Accepted: 04/18/2022] [Indexed: 12/13/2022] Open
Abstract
Essential oils (EOs) are complex mixtures of volatile compounds extracted from different parts of plants by different methods. There is a large diversity of these natural substances with varying properties that lead to their common use in several areas. The agrochemical, pharmaceutical, medical, food, and textile industry, as well as cosmetic and hygiene applications are some of the areas where EOs are widely included. To overcome the limitation of EOs being highly volatile and reactive, microencapsulation has become one of the preferred methods to retain and control these compounds. This review explores the techniques for extracting essential oils from aromatic plant matter. Microencapsulation strategies and the available technologies are also reviewed, along with an in-depth overview of the current research and application of microencapsulated EOs.
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Lian X, Song C, Wang Y. Regulating the Oil-Water Interface to Construct Double Emulsions: Current Understanding and Their Biomedical Applications. Chem Res Chin Univ 2022. [DOI: 10.1007/s40242-022-2019-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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Mei H, Cai S, Huang D, Gao H, Cao J, He B. Carrier-free nanodrugs with efficient drug delivery and release for cancer therapy: From intrinsic physicochemical properties to external modification. Bioact Mater 2022; 8:220-240. [PMID: 34541398 PMCID: PMC8424425 DOI: 10.1016/j.bioactmat.2021.06.035] [Citation(s) in RCA: 66] [Impact Index Per Article: 33.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2021] [Revised: 06/23/2021] [Accepted: 06/30/2021] [Indexed: 12/11/2022] Open
Abstract
The considerable development of carrier-free nanodrugs has been achieved due to their high drug-loading capability, simple preparation method, and offering "all-in-one" functional platform features. However, the native defects of carrier-free nanodrugs limit their delivery and release behavior throughout the in vivo journey, which significantly compromise the therapeutic efficacy and hinder their further development in cancer treatment. In this review, we summarized and discussed the recent strategies to enhance drug delivery and release of carrier-free nanodrugs for improved cancer therapy, including optimizing the intrinsic physicochemical properties and external modification. Finally, the corresponding challenges that carrier-free nanodrugs faced are discussed and the future perspectives for its application are presented. We hope this review will provide constructive information for the rational design of more effective carrier-free nanodrugs to advance therapeutic treatment.
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Affiliation(s)
- Heng Mei
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610064, China
| | - Shengsheng Cai
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610064, China
| | - Dennis Huang
- Department of Biomedical Engineering, The University of Texas at Austin, Austin, TX, 78731, USA
| | - Huile Gao
- West China School of Pharmacy, Sichuan University, Chengdu, 610064, China
| | - Jun Cao
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610064, China
| | - Bin He
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610064, China
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Lei Q, He F, Zhao X, Yin J. Preparation of Poly(Ionic Liquid) Microbeads by Evaporation‐Assisted Phase Separation. MACROMOL CHEM PHYS 2022. [DOI: 10.1002/macp.202100379] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Qi Lei
- Smart Materials Laboratory Department of Applied Physics School of Physical Science and Technology Northwestern Polytechnical University Xi'an Shaanxi 710129 China
- Research and Development Institute of Northwestern Polytechnical University in Shenzhen Shenzhen Guangdong 518057 China
| | - Fang He
- Smart Materials Laboratory Department of Applied Physics School of Physical Science and Technology Northwestern Polytechnical University Xi'an Shaanxi 710129 China
| | - Xiaopeng Zhao
- Smart Materials Laboratory Department of Applied Physics School of Physical Science and Technology Northwestern Polytechnical University Xi'an Shaanxi 710129 China
| | - Jianbo Yin
- Smart Materials Laboratory Department of Applied Physics School of Physical Science and Technology Northwestern Polytechnical University Xi'an Shaanxi 710129 China
- Research and Development Institute of Northwestern Polytechnical University in Shenzhen Shenzhen Guangdong 518057 China
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Katebifar S, Jaiswal D, Arul MR, Novak S, Nip J, Kalajzic I, Rudraiah S, Kumbar SG. Natural Polymer-Based Micronanostructured Scaffolds for Bone Tissue Engineering. Methods Mol Biol 2022; 2394:669-691. [PMID: 35094352 DOI: 10.1007/978-1-0716-1811-0_35] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Although bone tissue allografts and autografts aremoften used as a regenerative tissue during the bone healing, their availability, donor site morbidity, and immune response to grafted tissue are limiting factors their more common usage. Tissue engineered implants, such as acellular or cellular polymeric structures, can be an alternative solution. A variety of scaffold fabrication techniques including electrospinning, particulate leaching, particle sintering, and more recently 3D printing have been used to create scaffolds with interconnected pores and mechanical properties for tissue regeneration. Simply combining particle sintering and molecular self-assembly to create porous microstructures with imbued nanofibers to produce micronanostructures for tissue regeneration applications. Natural polymers like polysaccharides, proteins and peptides of plant or animal origin have gained significant attention due to their assured biocompatibility in tissue regeneration. However, majority of these polymers are water soluble and structures derived from them are in the form of hydrogels and require additional stabilization via cross-linking. For bone healing applications scaffolds are required to be strong, and support attachment, proliferation and differentiation of osteoprogenitors into osteoblasts. Our ongoing work utilizes plant polysaccharide cellulose derivatives and collagen to create mechanically stable and bioactive micronanostructured scaffold for bone tissue engineering. Scaffold microstructure is essentially solvent sintered cellulose acetate (CA) microspheres in the form of a negative template for trabecular bone with defined pore and mechanical properties. Collagen nanostructures are imbued into the 3D environment of CA scaffolds using collagen molecular self-assembly principles. The resultant CA-collagen micronanostructures provide the benefits of combined polymers and serve as an alternative material platform to many FDA approved polyesters. Our ongoing studies and published work confirm improved osteoprogenitor adhesion, proliferation, migration, differentiation, extracellular matrix (ECM) secretion in promoting bone healing. In this chapter we will provide a detailed protocol on the creation of micronanostructured CA-collagen scaffolds and their characterization for bone tissue engineering using human mesenchymal stem cells.
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Affiliation(s)
- Sara Katebifar
- Department of Biomedical Engineering, University of Connecticut, Storrs, CT, USA
- Department of Orthopedic Surgery, University of Connecticut Health, Farmington, CT, USA
| | - Devina Jaiswal
- Department of Biomedical Engineering, Western New England University, Springfield, MA, USA
| | - Michael R Arul
- Department of Orthopedic Surgery, University of Connecticut Health, Farmington, CT, USA
| | - Sanja Novak
- Department of Reconstructive Sciences, University of Connecticut Health, Farmington, CT, USA
| | - Jonathan Nip
- Department of Biomedical Engineering, University of Connecticut, Storrs, CT, USA
- Department of Orthopedic Surgery, University of Connecticut Health, Farmington, CT, USA
| | - Ivo Kalajzic
- Department of Reconstructive Sciences, University of Connecticut Health, Farmington, CT, USA
| | - Swetha Rudraiah
- Department of Orthopedic Surgery, University of Connecticut Health, Farmington, CT, USA
- Department of Pharmaceutical Sciences, University of Saint Joseph, Hartford, CT, USA
| | - Sangamesh G Kumbar
- Department of Biomedical Engineering, University of Connecticut, Storrs, CT, USA.
- Department of Orthopedic Surgery, University of Connecticut Health, Farmington, CT, USA.
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Ribeiro AM, Estevinho BN, Rocha F. The progress and application of vitamin E encapsulation – A review. Food Hydrocoll 2021. [DOI: 10.1016/j.foodhyd.2021.106998] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Park H, Kim JS, Kim S, Ha ES, Kim MS, Hwang SJ. Pharmaceutical Applications of Supercritical Fluid Extraction of Emulsions for Micro-/Nanoparticle Formation. Pharmaceutics 2021; 13:pharmaceutics13111928. [PMID: 34834343 PMCID: PMC8625501 DOI: 10.3390/pharmaceutics13111928] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2021] [Revised: 11/09/2021] [Accepted: 11/11/2021] [Indexed: 12/31/2022] Open
Abstract
Micro-/nanoparticle formulations containing drugs with or without various biocompatible excipients are widely used in the pharmaceutical field to improve the physicochemical and clinical properties of the final drug product. Among the various micro-/nanoparticle production technologies, emulsion-based particle formation is the most widely used because of its unique advantages such as uniform generation of spherical small particles and higher encapsulation efficiency (EE). For this emulsion-based micro-/nanoparticle technology, one of the most important factors is the extraction efficiency associated with the fast removal of the organic solvent. In consideration of this, a technology called supercritical fluid extraction of emulsions (SFEE) that uses the unique mass transfer mechanism and solvent power of a supercritical fluid (SCF) has been proposed to overcome the shortcomings of several conventional technologies such as solvent evaporation, extraction, and spray drying. This review article presents the main aspects of SFEE technology for the preparation of micro-/nanoparticles by focusing on its pharmaceutical applications, which have been organized and classified according to several types of drug delivery systems and active pharmaceutical ingredients. It was definitely confirmed that SFEE can be applied in a variety of drugs from water-soluble to poorly water-soluble. In addition, it has advantages such as low organic solvent residual, high EE, desirable release control, better particle size control, and agglomeration prevention through efficient and fast solvent removal compared to conventional micro-/nanoparticle technologies. Therefore, this review will be a good resource for determining the applicability of SFEE to obtain better pharmaceutical quality when researchers in related fields want to select a suitable manufacturing process for preparing desired micro-/nanoparticle drug delivery systems containing their active material.
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Affiliation(s)
- Heejun Park
- College of Pharmacy, Duksung Women’s University, 33, Samyangro 144-gil, Dobong-gu, Seoul 01369, Korea; (H.P.); (S.K.)
| | - Jeong-Soo Kim
- Dong-A ST Co. Ltd., 21, Geumhwa-ro 105beon-gil, Giheung-gu, Yongin-si 17073, Korea;
| | - Sebin Kim
- College of Pharmacy, Duksung Women’s University, 33, Samyangro 144-gil, Dobong-gu, Seoul 01369, Korea; (H.P.); (S.K.)
| | - Eun-Sol Ha
- College of Pharmacy, Pusan National University, 63 Busandaehak-ro, Geumjeong-gu, Busan 46241, Korea;
| | - Min-Soo Kim
- College of Pharmacy, Pusan National University, 63 Busandaehak-ro, Geumjeong-gu, Busan 46241, Korea;
- Correspondence: (M.-S.K.); (S.-J.H.); Tel.: +82-51-510-2813 (M.-S.K.)
| | - Sung-Joo Hwang
- Yonsei Institute of Pharmaceutical Sciences & College of Pharmacy, Yonsei University, 85 Songdogwahak-ro, Yeonsu-gu, Incheon 21983, Korea
- Correspondence: (M.-S.K.); (S.-J.H.); Tel.: +82-51-510-2813 (M.-S.K.)
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Le TNQ, Tran NN, Escribà-Gelonch M, Serra CA, Fisk I, McClements DJ, Hessel V. Microfluidic encapsulation for controlled release and its potential for nanofertilisers. Chem Soc Rev 2021; 50:11979-12012. [PMID: 34515721 DOI: 10.1039/d1cs00465d] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Nanotechnology is increasingly being utilized to create advanced materials with improved or new functional attributes. Converting fertilizers into a nanoparticle-form has been shown to improve their efficacy but the current procedures used to fabricate nanofertilisers often have poor reproducibility and flexibility. Microfluidic systems, on the other hand, have advantages over traditional nanoparticle fabrication methods in terms of energy and materials consumption, versatility, and controllability. The increased controllability can result in the formation of nanoparticles with precise and complex morphologies (e.g., tuneable sizes, low polydispersity, and multi-core structures). As a result, their functional performance can be tailored to specific applications. This paper reviews the principles, formation, and applications of nano-enabled delivery systems fabricated using microfluidic approaches for the encapsulation, protection, and release of fertilizers. Controlled release can be achieved using two main routes: (i) nutrients adsorbed on nanosupports and (ii) nutrients encapsulated inside nanostructures. We aim to highlight the opportunities for preparing a new generation of highly versatile nanofertilisers using microfluidic systems. We will explore several main characteristics of microfluidically prepared nanofertilisers, including droplet formation, shell fine-tuning, adsorbate fine-tuning, and sustained/triggered release behavior.
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Affiliation(s)
- Tu Nguyen Quang Le
- School of Chemical Engineering and Advanced Materials, The University of Adelaide, Adelaide, SA 5005, Australia. .,Faculty of Chemical Engineering, Ho Chi Minh City University of Technology, Ho Chi Minh City, Vietnam
| | - Nam Nghiep Tran
- School of Chemical Engineering and Advanced Materials, The University of Adelaide, Adelaide, SA 5005, Australia. .,School of Chemical Engineering, Can Tho University, Can Tho City, Vietnam
| | - Marc Escribà-Gelonch
- Higher Polytechnic Engineering School, University of Lleida, Igualada (Barcelona), 08700, Spain
| | - Christophe A Serra
- Université de Strasbourg, CNRS, Institut Charles Sadron UPR 22, F-67000 Strasbourg, France
| | - Ian Fisk
- Division of Food, Nutrition and Dietetics, School of Biosciences, University of Nottingham, Loughborough, LE12 5RD, UK.,The University of Adelaide, North Terrace, Adelaide, South Australia, Australia
| | | | - Volker Hessel
- School of Chemical Engineering and Advanced Materials, The University of Adelaide, Adelaide, SA 5005, Australia. .,School of Engineering, University of Warwick, Library Rd, Coventry, UK
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Bentley ER, Little SR. Local delivery strategies to restore immune homeostasis in the context of inflammation. Adv Drug Deliv Rev 2021; 178:113971. [PMID: 34530013 PMCID: PMC8556365 DOI: 10.1016/j.addr.2021.113971] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Revised: 09/05/2021] [Accepted: 09/07/2021] [Indexed: 12/13/2022]
Abstract
Immune homeostasis is maintained by a precise balance between effector immune cells and regulatory immune cells. Chronic deviations from immune homeostasis, driven by a greater ratio of effector to regulatory cues, can promote the development and propagation of inflammatory diseases/conditions (i.e., autoimmune diseases, transplant rejection, etc.). Current methods to treat chronic inflammation rely upon systemic administration of non-specific small molecules, resulting in broad immunosuppression with unwanted side effects. Consequently, recent studies have developed more localized and specific immunomodulatory approaches to treat inflammation through the use of local biomaterial-based delivery systems. In particular, this review focuses on (1) local biomaterial-based delivery systems, (2) common materials used for polymeric-delivery systems and (3) emerging immunomodulatory trends used to treat inflammation with increased specificity.
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Affiliation(s)
- Elizabeth R Bentley
- Department of Bioengineering, University of Pittsburgh, 302 Benedum Hall, 3700 O'Hara Street, Pittsburgh, PA 15260, United States.
| | - Steven R Little
- Department of Bioengineering, University of Pittsburgh, 302 Benedum Hall, 3700 O'Hara Street, Pittsburgh, PA 15260, United States; Department of Chemical Engineering, University of Pittsburgh, 940 Benedum Hall, 3700 O'Hara Street, Pittsburgh, PA 15213, United States; Department of Clinical and Translational Science, University of Pittsburgh, Forbes Tower, Suite 7057, Pittsburgh, PA 15213, United States; McGowan Institute for Regenerative Medicine, University of Pittsburgh, 450 Technology Drive, Suite 300, Pittsburgh, PA 15219, United States; Department of Immunology, University of Pittsburgh, 200 Lothrop Street, Pittsburgh, PA 15213, United States; Department of Pharmaceutical Sciences, University of Pittsburgh, 3501 Terrace Street, Pittsburgh, PA 15213, United States; Department of Ophthalmology, University of Pittsburgh, 203 Lothrop Street, Pittsburgh, PA 15213, United States.
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Muhaimin M, Chaerunisaa AY, Bodmeier R. Real-time particle size analysis using focused beam reflectance measurement as a process analytical technology tool for continuous microencapsulation process. Sci Rep 2021; 11:19390. [PMID: 34588571 PMCID: PMC8481503 DOI: 10.1038/s41598-021-98984-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2021] [Accepted: 09/17/2021] [Indexed: 11/23/2022] Open
Abstract
The online real-time particle size analysis of the microencapsules manufacturing process using the continuous solvent evaporation method was performed using focused beam reflectance measurement (FBRM). In this paper, we use FBRM measurements to investigate the effects of polymer type and compare the size distributions to those obtained using other sizing methods such as optical microscope and laser diffraction. FBRM was also utilized to measure the length-weighted chord length distribution (CLD) and particle size distribution (PSD) online during particle solidification, which could not be done with laser diffraction or nested sieve analysis. The chord lengths and CLD data were taken at specific times using an online FBRM probe mounted below the microparticle. The timing of the FBRM determinations was coordinated with the selection of microparticle samples for particle size analysis by optical microscope and laser diffraction calculation as a reference. For all three produced batches tested, FBRM, laser diffraction, and sieve analysis yielded similar results. Hardening time for the transformation of emulsion droplets into solid microparticles occurred within the first 10.5, 19, 25, 30, and 55 min, according to FBRM results. The FBRM CLDs revealed that a larger particle size mean resulted in a longer CLD and a lower peak of particle number. The FBRM data revealed that the polymer type had a significant impact on microparticle CLD and the transformation process.
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Affiliation(s)
- Muhaimin Muhaimin
- Faculty of Pharmacy, Universitas Padjadjaran, Jl. Raya Jatinangor Km 21, Sumedang, Jawa Barat, 45363, Indonesia.
| | - Anis Yohana Chaerunisaa
- Faculty of Pharmacy, Universitas Padjadjaran, Jl. Raya Jatinangor Km 21, Sumedang, Jawa Barat, 45363, Indonesia
| | - Roland Bodmeier
- College of Pharmacy, Freie Universität Berlin, Kelchstr. 31, Berlin, 12169, Germany
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Demina TS, Kilyashova LA, Popyrina TN, Svidchenko EA, Bhuniya S, Akopova TA, Grandfils C. Polysaccharides as Stabilizers for Polymeric Microcarriers Fabrication. Polymers (Basel) 2021; 13:polym13183045. [PMID: 34577945 PMCID: PMC8467260 DOI: 10.3390/polym13183045] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2021] [Revised: 09/02/2021] [Accepted: 09/07/2021] [Indexed: 12/13/2022] Open
Abstract
Biodegradable polymeric microparticles are widely used in drug delivery systems with prolonged-release profiles and/or cell microcarriers. Their fabrication via the oil/water emulsion solvent evaporation technique has normally required emulsifiers in the aqueous phase. The present work aims to evaluate the effectiveness of various polysaccharides, such as chitosan, hyaluronic acid, cellulose, arabinogalactan, guar and their derivatives, as an alternative to synthetic surfactants for polylactide microparticle stabilization during their fabrication. Targeted modification of the biopolymer’s chemical structure was also tested as a tool to enhance polysaccharides’ emulsifying ability. The transformation of biomacromolecules into a form of nanoparticle via bottom-up or top-down methods and their subsequent application for microparticle fabrication via the Pickering emulsion solvent evaporation technique was useful as a one-step approach towards the preparation of core/shell microparticles. The effect of polysaccharides’ chemical structure and the form of their application on the polylactide microparticles’ total yield, size distribution and morphology was evaluated. The application of polysaccharides has great potential in terms of the development of green chemistry and the biocompatibility of the formed microparticles, which is especially important in biomedicine application.
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Affiliation(s)
- Tatiana S. Demina
- Enikolopov Institute of Synthetic Polymeric Materials, Russian Academy of Sciences, 70 Profsouznaya Str., 117393 Moscow, Russia; (T.N.P.); (E.A.S.); (T.A.A.)
- Institute for Regenerative Medicine, Sechenov First Moscow State Medical University (Sechenov University), 8-2 Trubetskaya Str., 119991 Moscow, Russia
- Moscow Aviation Institute, National Research University, Orshanskaya Str. 3, 121552 Moscow, Russia;
- Correspondence:
| | - Liubov A. Kilyashova
- Moscow Aviation Institute, National Research University, Orshanskaya Str. 3, 121552 Moscow, Russia;
| | - Tatiana N. Popyrina
- Enikolopov Institute of Synthetic Polymeric Materials, Russian Academy of Sciences, 70 Profsouznaya Str., 117393 Moscow, Russia; (T.N.P.); (E.A.S.); (T.A.A.)
| | - Eugenia A. Svidchenko
- Enikolopov Institute of Synthetic Polymeric Materials, Russian Academy of Sciences, 70 Profsouznaya Str., 117393 Moscow, Russia; (T.N.P.); (E.A.S.); (T.A.A.)
| | - Sankarprasad Bhuniya
- Centre Interdisciplinary Sciences of the JIS Institute of Advanced Studies and Research (JISIASR), JIS University, Arch Waterfront, GP Block, Sector V Bidhannagar, Kolkata 700091, West Bengal, India;
| | - Tatiana A. Akopova
- Enikolopov Institute of Synthetic Polymeric Materials, Russian Academy of Sciences, 70 Profsouznaya Str., 117393 Moscow, Russia; (T.N.P.); (E.A.S.); (T.A.A.)
| | - Christian Grandfils
- Interfaculty Research Centre on Biomaterials (CEIB), Chemistry Institute, University of Liège, B6C, 11 Allée du 6 août, Sart-Tilman, B-4000 Liege, Belgium;
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Shepherd SJ, Issadore D, Mitchell MJ. Microfluidic formulation of nanoparticles for biomedical applications. Biomaterials 2021; 274:120826. [PMID: 33965797 PMCID: PMC8752123 DOI: 10.1016/j.biomaterials.2021.120826] [Citation(s) in RCA: 129] [Impact Index Per Article: 43.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2020] [Revised: 03/31/2021] [Accepted: 04/11/2021] [Indexed: 02/06/2023]
Abstract
Nanomedicine has made significant advances in clinical applications since the late-20th century, in part due to its distinct advantages in biocompatibility, potency, and novel therapeutic applications. Many nanoparticle (NP) therapies have been approved for clinical use, including as imaging agents or as platforms for drug delivery and gene therapy. However, there are remaining challenges that hinder translation, such as non-scalable production methods and the inefficiency of current NP formulations in delivering their cargo to their target. To address challenges with existing formulation methods that have batch-to-batch variability and produce particles with high dispersity, microfluidics-devices that manipulate fluids on a micrometer scale-have demonstrated enormous potential to generate reproducible NP formulations for therapeutic, diagnostic, and preventative applications. Microfluidic-generated NP formulations have been shown to have enhanced properties for biomedical applications by formulating NPs with more controlled physical properties than is possible with bulk techniques-such as size, size distribution, and loading efficiency. In this review, we highlight advances in microfluidic technologies for the formulation of NPs, with an emphasis on lipid-based NPs, polymeric NPs, and inorganic NPs. We provide a summary of microfluidic devices used for NP formulation with their advantages and respective challenges. Additionally, we provide our analysis for future outlooks in the field of NP formulation and microfluidics, with emerging topics of production scale-independent formulations through device parallelization and multi-step reactions within droplets.
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Affiliation(s)
- Sarah J Shepherd
- Department of Bioengineering, University of Pennsylvania, Philadelphia, PA, 19104, USA
| | - David Issadore
- Department of Bioengineering, University of Pennsylvania, Philadelphia, PA, 19104, USA; Department of Electrical and Systems Engineering, University of Pennsylvania, Philadelphia, PA, 19104, USA; Department of Chemical and Biomolecular Engineering, University of Pennsylvania, Philadelphia, PA, 19104, USA.
| | - Michael J Mitchell
- Department of Bioengineering, University of Pennsylvania, Philadelphia, PA, 19104, USA; Abramson Cancer Center, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, 19104, USA; Institute for Immunology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, 19104, USA; Cardiovascular Institute, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, 19104, USA; Institute for Regenerative Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, 19104, USA.
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Si W, Yang Q, Zong Y, Ren G, Zhao L, Hong M, Xin Z. Toward Understanding the Effect of Solvent Evaporation on the Morphology of PLGA Microspheres by Double Emulsion Method. Ind Eng Chem Res 2021. [DOI: 10.1021/acs.iecr.1c00063] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Wei Si
- State Key Laboratory of Chemical Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Qingqing Yang
- Engineering Research Center of Pharmaceutical Process Chemistry, Ministry of Education, Laboratory of Pharmaceutical Crystal Engineering & Technology, School of Pharmacy, East China University of Science and Technology, No. 130 Meilong Road, Shanghai 200237, China
| | - Yuan Zong
- State Key Laboratory of Chemical Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Guobin Ren
- State Key Laboratory of Bioreactor Engineering, Shanghai Key Laboratory of New Drug Design, School of Pharmacy, East China University of Science and Technology, No. 130 Meilong Road, Shanghai 200237, China
- Engineering Research Center of Pharmaceutical Process Chemistry, Ministry of Education, Laboratory of Pharmaceutical Crystal Engineering & Technology, School of Pharmacy, East China University of Science and Technology, No. 130 Meilong Road, Shanghai 200237, China
| | - Ling Zhao
- State Key Laboratory of Chemical Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Minghuang Hong
- Engineering Research Center of Pharmaceutical Process Chemistry, Ministry of Education, Laboratory of Pharmaceutical Crystal Engineering & Technology, School of Pharmacy, East China University of Science and Technology, No. 130 Meilong Road, Shanghai 200237, China
| | - Zhong Xin
- State Key Laboratory of Chemical Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
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Mozaffari SM, Beheshty MH. Nanoclay-modified microcapsules as a latent curing agent in epoxy. Polym Bull (Berl) 2021. [DOI: 10.1007/s00289-020-03247-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Henshaw CA, Dundas AA, Cuzzucoli Crucitti V, Alexander MR, Wildman R, Rose FRAJ, Irvine DJ, Williams PM. Droplet Microfluidic Optimisation Using Micropipette Characterisation of Bio-Instructive Polymeric Surfactants. Molecules 2021; 26:3302. [PMID: 34072733 PMCID: PMC8197901 DOI: 10.3390/molecules26113302] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Revised: 05/25/2021] [Accepted: 05/27/2021] [Indexed: 11/24/2022] Open
Abstract
Droplet microfluidics can produce highly tailored microparticles whilst retaining monodispersity. However, these systems often require lengthy optimisation, commonly based on a trial-and-error approach, particularly when using bio-instructive, polymeric surfactants. Here, micropipette manipulation methods were used to optimise the concentration of bespoke polymeric surfactants to produce biodegradable (poly(d,l-lactic acid) (PDLLA)) microparticles with unique, bio-instructive surface chemistries. The effect of these three-dimensional surfactants on the interfacial tension of the system was analysed. It was determined that to provide adequate stabilisation, a low level (0.1% (w/v)) of poly(vinyl acetate-co-alcohol) (PVA) was required. Optimisation of the PVA concentration was informed by micropipette manipulation. As a result, successful, monodisperse particles were produced that maintained the desired bio-instructive surface chemistry.
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Affiliation(s)
- Charlotte A. Henshaw
- Molecular Therapeutics and Formulation, School of Pharmacy, University of Nottingham, Nottingham NG7 2RD, UK;
- Advanced Materials and Healthcare Technologies, School of Pharmacy, University of Nottingham, Nottingham NG7 2RD, UK; (A.A.D.); (M.R.A.)
| | - Adam A. Dundas
- Advanced Materials and Healthcare Technologies, School of Pharmacy, University of Nottingham, Nottingham NG7 2RD, UK; (A.A.D.); (M.R.A.)
- Centre for Additive Manufacturing, Department for Chemical and Environmental Engineering, Faculty of Engineering, University of Nottingham, Nottingham NG7 2RD, UK; (V.C.C.); (R.W.)
| | - Valentina Cuzzucoli Crucitti
- Centre for Additive Manufacturing, Department for Chemical and Environmental Engineering, Faculty of Engineering, University of Nottingham, Nottingham NG7 2RD, UK; (V.C.C.); (R.W.)
| | - Morgan R. Alexander
- Advanced Materials and Healthcare Technologies, School of Pharmacy, University of Nottingham, Nottingham NG7 2RD, UK; (A.A.D.); (M.R.A.)
| | - Ricky Wildman
- Centre for Additive Manufacturing, Department for Chemical and Environmental Engineering, Faculty of Engineering, University of Nottingham, Nottingham NG7 2RD, UK; (V.C.C.); (R.W.)
| | - Felicity R. A. J. Rose
- Regenerative Medicine and Cellular Therapies, School of Pharmacy, University of Nottingham, Nottingham NG7 2RD, UK;
| | - Derek J. Irvine
- Centre for Additive Manufacturing, Department for Chemical and Environmental Engineering, Faculty of Engineering, University of Nottingham, Nottingham NG7 2RD, UK; (V.C.C.); (R.W.)
| | - Philip M. Williams
- Molecular Therapeutics and Formulation, School of Pharmacy, University of Nottingham, Nottingham NG7 2RD, UK;
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Ramachandran JP, Kottammal AP, Antony A, Ramakrishnan RM, Wallen SL, Raveendran P. Green processing: CO2-induced glassification of sucrose octaacetate and its implications in the spontaneous release of drug from drug-excipient composites. J CO2 UTIL 2021. [DOI: 10.1016/j.jcou.2021.101472] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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PLGA Microspheres Containing Hydrophobically Modified Magnesium Hydroxide Particles for Acid Neutralization-Mediated Anti-Inflammation. Tissue Eng Regen Med 2021; 18:613-622. [PMID: 33877618 DOI: 10.1007/s13770-021-00338-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2021] [Revised: 03/03/2021] [Accepted: 03/10/2021] [Indexed: 10/21/2022] Open
Abstract
BACKGROUND Poly(lactic-co-glycolic acid) (PLGA) microspheres have been actively used in various pharmaceutical formulations because they can sustain active pharmaceutical ingredient release and are easy to administer into the body using a syringe. However, the acidic byproducts produced by the decomposition of PLGA cause inflammatory reactions in surrounding tissues, limiting biocompatibility. Magnesium hydroxide (MH), an alkaline ceramic, has attracted attention as a potential additive because it has an acid-neutralizing effect. METHODS To improve the encapsulation efficiency of hydrophilic MH, the MH particles were capped with hydrophobic ricinoleic acid (RA-MH). PLGA microspheres encapsulated with RA-MH particles were manufactured by the O/W method. To assess the in vitro cytotoxicity of the degradation products of PLGA, MH/PLGA, and RA-MH/PLGA microspheres, CCK-8 and Live/Dead assays were performed with NIH-3T3 cells treated with different concentrations of their degradation products. In vitro anti-inflammatory effect of RA-MH/PLGA microspheres was evaluated with quantitative measurement of pro-inflammatory cytokines. RESULTS The synthesized RA-MH was encapsulated in PLGA microspheres and displayed more than four times higher loading content than pristine MH. The PLGA microspheres encapsulated with RA-MH had an acid-neutralizing effect better than that of the control group. In an in vitro cell experiment, the degradation products obtained from RA-MH/PLGA microspheres exhibited higher biocompatibility than the degradation products obtained from PLGA microspheres. Additionally, the RA-MH/PLGA microsphere group showed an excellent anti-inflammatory effect. CONCLUSION Our results proved that RA-MH-encapsulated PLGA microspheres showed excellent biocompatibility with an anti-inflammatory effect. This technology can be applied to drug delivery and tissue engineering to treat various incurable diseases in the future.
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Effect of epoxy resin healing agent viscosity on the self-healing performance of capsules reinforced polymer composite. JOURNAL OF POLYMER RESEARCH 2021. [DOI: 10.1007/s10965-021-02458-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Fatty acid-modified poly(glycerol adipate) microparticles for controlled drug delivery. J Drug Deliv Sci Technol 2021. [DOI: 10.1016/j.jddst.2020.102206] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
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