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Zhang C, Wu Y, Hutton ARJ, Hidayat Bin Sabri A, Hobson JJ, Savage AC, McCarthy HO, Paredes AJ, Owen A, Rannard SP, Donnelly RF. Systemic delivery of bictegravir and tenofovir alafenamide using dissolving microneedles for HIV preexposure prophylaxis. Int J Pharm 2024; 660:124317. [PMID: 38851410 DOI: 10.1016/j.ijpharm.2024.124317] [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: 05/10/2024] [Revised: 06/04/2024] [Accepted: 06/05/2024] [Indexed: 06/10/2024]
Abstract
Human immunodeficiency virus (HIV) continues to pose a serious threat to global health. Oral preexposure prophylaxis (PrEP), considered highly effective for HIV prevention, is the utilisation of antiretroviral (ARV) drugs before HIV exposure in high-risk uninfected individuals. However, ARV drugs are associated with poor patient compliance and pill fatigue due to their daily oral dosing. Therefore, an alternative strategy for drug delivery is required. In this work, two dissolving microneedle patches (MNs) containing either bictegravir (BIC) or tenofovir alafenamide (TAF) solid drug nanoparticles (SDNs) were developed for systemic delivery of a novel ARV regimen for potential HIV prevention. According to ex vivo skin deposition studies, approximately 11% and 50% of BIC and TAF was delivered using dissolving MNs, respectively. Pharmacokinetic studies in Sprague Dawley rats demonstrated that BIC MNs achieved a long-acting release profile, maintaining the relative plasma concentration above the 95% inhibitory concentration (IC95) for 3 weeks. For TAF MNs, a rapid release of drug and metabolism of TAF into TFV were obtained from the plasma samples. This work has shown that the proposed transdermal drug delivery platform could be potentially used as an alternative method to systemically deliver ARV drugs for HIV PrEP.
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Affiliation(s)
- Chunyang Zhang
- School of Pharmacy, Queen's University Belfast, Medical Biology Centre, 97 Lisburn Road, Belfast BT9 7BL, the United Kingdom of Great Britain and Northern Ireland
| | - Yu Wu
- School of Pharmacy, Queen's University Belfast, Medical Biology Centre, 97 Lisburn Road, Belfast BT9 7BL, the United Kingdom of Great Britain and Northern Ireland
| | - Aaron R J Hutton
- School of Pharmacy and Pharmaceutical Sciences, Ulster University, Coleraine, the United Kingdom of Great Britain and Northern Ireland
| | - Akmal Hidayat Bin Sabri
- School of Pharmacy, Queen's University Belfast, Medical Biology Centre, 97 Lisburn Road, Belfast BT9 7BL, the United Kingdom of Great Britain and Northern Ireland
| | - James J Hobson
- Department of Chemistry, University of Liverpool, Crown Street, Liverpool L69 7ZD, the United Kingdom of Great Britain and Northern Ireland; Centre of Excellence in Long-acting Therapeutics (CELT), University of Liverpool, Liverpool, L7 3NY, the United Kingdom of Great Britain and Northern Ireland
| | - Alison C Savage
- Department of Chemistry, University of Liverpool, Crown Street, Liverpool L69 7ZD, the United Kingdom of Great Britain and Northern Ireland; Centre of Excellence in Long-acting Therapeutics (CELT), University of Liverpool, Liverpool, L7 3NY, the United Kingdom of Great Britain and Northern Ireland
| | - Helen O McCarthy
- School of Pharmacy, Queen's University Belfast, Medical Biology Centre, 97 Lisburn Road, Belfast BT9 7BL, the United Kingdom of Great Britain and Northern Ireland
| | - Alejandro J Paredes
- School of Pharmacy, Queen's University Belfast, Medical Biology Centre, 97 Lisburn Road, Belfast BT9 7BL, the United Kingdom of Great Britain and Northern Ireland
| | - Andrew Owen
- Department of Molecular and Clinical Pharmacology, University of Liverpool, Block H, 70 Pembroke Place, Liverpool, L69 3GF, the United Kingdom of Great Britain and Northern Ireland; Centre of Excellence in Long-acting Therapeutics (CELT), University of Liverpool, Liverpool, L7 3NY, the United Kingdom of Great Britain and Northern Ireland.
| | - Steven P Rannard
- Department of Chemistry, University of Liverpool, Crown Street, Liverpool L69 7ZD, the United Kingdom of Great Britain and Northern Ireland; Centre of Excellence in Long-acting Therapeutics (CELT), University of Liverpool, Liverpool, L7 3NY, the United Kingdom of Great Britain and Northern Ireland.
| | - Ryan F Donnelly
- School of Pharmacy, Queen's University Belfast, Medical Biology Centre, 97 Lisburn Road, Belfast BT9 7BL, the United Kingdom of Great Britain and Northern Ireland.
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Attia L, Nguyen D, Gokhale D, Zheng T, Doyle PS. Surfactant-Polymer Complexation and Competition on Drug Nanocrystal Surfaces Control Crystallinity. ACS APPLIED MATERIALS & INTERFACES 2024; 16:34409-34418. [PMID: 38889207 DOI: 10.1021/acsami.4c06815] [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: 06/20/2024]
Abstract
Nanosizing drug crystals has emerged as a successful approach to enabling oral bioavailability, as increasing drug crystal surface area improves dissolution kinetics and effective solubility. Recently, bottom-up methods have been developed to directly assemble nanosized crystals by leveraging polymer and surfactant excipients during crystallization to control crystal size, morphology, and structure. However, while significant research has investigated how polymers and other single additives inhibit or promote crystallization in pharmaceutical systems, there is little work studying the mechanistic interactions of multiple excipients on drug crystal structure and the extent of crystallinity, which can influence formulation performance. This study explores how the structure and crystallinity of a model hydrophobic drug crystal, fenofibrate, change as a result of competitive interfacial chemisorption between common nonionic surfactants (polysorbate 80 and sorbitan monooleate) and a surface-active polymer excipient (methylcellulose). Classical molecular dynamics simulations highlight how key intermolecular interactions, including surfactant-polymer complexation and surfactant screening of the crystal surface, modify the resulting crystal structure. In parallel, experiments generating drug nanocrystals in hydrogel thin films validate that drug crystallinity increases with an increasing weight fraction of surfactant. Simulation results reveal a connection between accelerated dynamics in the bulk crystal and the experimentally measured extent of crystallinity. To our knowledge, these are the first simulations that directly characterize structural changes in a drug crystal as a result of excipient surface composition and relate the experimental extent of crystallinity to structural changes in the molecular crystal. Our approach provides a mechanistic understanding of crystallinity in nanocrystallization, which can expand the range of orally deliverable small molecule therapies.
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Affiliation(s)
- Lucas Attia
- Department of Chemical Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
| | - Dien Nguyen
- Department of Chemical Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
| | - Devashish Gokhale
- Department of Chemical Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
| | - Talia Zheng
- Department of Chemical Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
| | - Patrick S Doyle
- Department of Chemical Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
- Campus for Research Excellence and Technological Enterprise, Singapore 138602, Singapore
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3
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Rehman MFU, Khan MM. Application of nanopesticides and its toxicity evaluation through Drosophila model. Bioprocess Biosyst Eng 2024; 47:1-22. [PMID: 37993740 DOI: 10.1007/s00449-023-02932-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Accepted: 10/08/2023] [Indexed: 11/24/2023]
Abstract
Insects feed on plants and cause the growth of plants to be restricted. Moreover, the application of traditional pesticides causes harmful effects on non-target organisms and poses serious threats to the environment. The use of conventional pesticides has negative impacts on creatures that are not the intended targets. It also presents significant risks to the surrounding ecosystem. Insects that are exposed to these chemicals eventually develop resistance to them. This review could benefit researcher for future development of nanopesticides research. This is because a holistic approach has been taken to describe the multidimensional properties of nanopesticides, health and environmental concerns and its possible harmful effects on non-target organisms and physiochemical entities. The assessment of effects of the nanopesticides is also being discussed through the drosophotoxicology. The future outlooks have been suggested to take a critical analysis before commercialization or formulation of the nanopesticides.
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Affiliation(s)
| | - Mohammad Mansoob Khan
- Chemical Sciences, Faculty of Science, Universiti Brunei Darussalam, JalanTungku Link, Gadong, BE, 1410, Brunei Darussalam.
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Taylor J, Sharp A, Rannard SP, Arrowsmith S, McDonald TO. Nanomedicine strategies to improve therapeutic agents for the prevention and treatment of preterm birth and future directions. NANOSCALE ADVANCES 2023; 5:1870-1889. [PMID: 36998665 PMCID: PMC10044983 DOI: 10.1039/d2na00834c] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Accepted: 01/27/2023] [Indexed: 06/19/2023]
Abstract
The World Health Organisation (WHO) estimates 15 million babies worldwide are born preterm each year, with 1 million infant mortalities and long-term morbidity in survivors. Whilst the past 40 years have provided some understanding in the causes of preterm birth, along with development of a range of therapeutic options, notably prophylactic use of progesterone or uterine contraction suppressants (tocolytics), the number of preterm births continues to rise. Existing therapeutics used to control uterine contractions are restricted in their clinical use due to pharmacological drawbacks such as poor potency, transfer of drugs to the fetus across the placenta and maternal side effects from activity in other maternal systems. This review focuses on addressing the urgent need for the development of alternative therapeutic systems with improved efficacy and safety for the treatment of preterm birth. We discuss the application of nanomedicine as a viable opportunity to engineer pre-existing tocolytic agents and progestogens into nanoformulations, to improve their efficacy and address current drawbacks to their use. We review different nanomedicines including liposomes, lipid-based carriers, polymers and nanosuspensions highlighting where possible, where these technologies have already been exploited e.g. liposomes, and their significance in improving the properties of pre-existing therapeutic agents within the field of obstetrics. We also highlight where active pharmaceutical agents (APIs) with tocolytic properties have been used for other clinical indications and how these could inform the design of future therapeutics or be repurposed to diversify their application such as for use in preterm birth. Finally we outline and discuss the future challenges.
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Affiliation(s)
- Jessica Taylor
- Department of Chemistry, University of Liverpool Crown Street Liverpool L69 7ZD UK
| | - Andrew Sharp
- Harris-Wellbeing Preterm Birth Research Centre, Department of Women's and Children's Health, Liverpool Women's Hospital, University of Liverpool Crown Street Liverpool L8 7SS UK
| | - Steve P Rannard
- Department of Chemistry, University of Liverpool Crown Street Liverpool L69 7ZD UK
- Centre of Excellence in Long-acting Therapeutics (CELT), University of Liverpool Liverpool L7 3NY UK
| | - Sarah Arrowsmith
- Department of Life Sciences, Manchester Metropolitan University Chester Street Manchester M1 5GD UK
| | - Tom O McDonald
- Department of Chemistry, University of Liverpool Crown Street Liverpool L69 7ZD UK
- Department of Materials, Henry Royce Institute, The University of Manchester Manchester M13 9PL UK
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Manna S, Roy S, Dolai A, Ravula AR, Perumal V, Das A. Current and future prospects of “all-organic” nanoinsecticides for agricultural insect pest management. FRONTIERS IN NANOTECHNOLOGY 2023. [DOI: 10.3389/fnano.2022.1082128] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
Abstract
Graphical Abstract
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Xu W, Kumar V, Cui CS, Li XX, Whittaker AK, Xu ZP, Smith MT, Woodruff TM, Han FY. Success in navigating hurdles to oral delivery of a bioactive peptide complement antagonist through use of nanoparticles to increase bioavailability and in vivo efficacy. ADVANCED THERAPEUTICS 2022. [DOI: 10.1002/adtp.202200109] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Weizhi Xu
- School of Biomedical Sciences Faculty of Medicine The University of Queensland Queensland QLD Australia
- Australian Institute for Bioengineering and Nanotechnology The University of Queensland Queensland QLD Australia
| | - Vinod Kumar
- School of Biomedical Sciences Faculty of Medicine The University of Queensland Queensland QLD Australia
| | - Cedric S. Cui
- School of Biomedical Sciences Faculty of Medicine The University of Queensland Queensland QLD Australia
| | - Xaria X. Li
- School of Biomedical Sciences Faculty of Medicine The University of Queensland Queensland QLD Australia
| | - Andrew K. Whittaker
- Australian Institute for Bioengineering and Nanotechnology The University of Queensland Queensland QLD Australia
| | - Zhi Ping Xu
- Australian Institute for Bioengineering and Nanotechnology The University of Queensland Queensland QLD Australia
| | - Maree T. Smith
- School of Biomedical Sciences Faculty of Medicine The University of Queensland Queensland QLD Australia
| | - Trent M. Woodruff
- School of Biomedical Sciences Faculty of Medicine The University of Queensland Queensland QLD Australia
| | - Felicity Y Han
- School of Biomedical Sciences Faculty of Medicine The University of Queensland Queensland QLD Australia
- Australian Institute for Bioengineering and Nanotechnology The University of Queensland Queensland QLD Australia
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7
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Shakil A, Hern FY, Liu C, Temburnikar K, Chambon P, Liptrott N, McDonald TO, Neary M, Owen A, Freel Meyers C, Rannard SP. Linear and branched polymer prodrugs of the water-soluble nucleoside reverse-transcriptase inhibitor emtricitabine as structural materials for long-acting implants. J Mater Chem B 2022; 10:4395-4404. [PMID: 35604111 PMCID: PMC9199480 DOI: 10.1039/d2tb00825d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2022] [Accepted: 05/17/2022] [Indexed: 11/21/2022]
Abstract
Long-acting drug delivery is a growing area of interest as it overcomes many challenges related to patient adherence to therapy and the pill burden associated with chronic illness. Injectable formulations are becoming more common and drug-releasing implants also provide several opportunities. Highly water soluble drug compounds are poor candidates for long-acting delivery. Here, the water-soluble nucleoside reverse transcriptase inhibitor emtricitabine (FTC) has been used as a novel A-B monomer in step-growth polymerisation with chloroformate functional Cn monomers, to produce new poly(carbamate/carbonate) structures with varying architecture. The polymer prodrugs were all solid at ambient temperature and have been shown to release FTC when subjected to mixed gender human plasma. Vacuum compression moulding has been used to form solid rod implants without polymer degradation; the rods show FTC release over long periods in the presence of microsomes, establishing the basis of a polymer prodrug strategy for FTC delivery.
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Affiliation(s)
- Anika Shakil
- Department of Chemistry, University of Liverpool, Crown Street, Liverpool, L69 7ZD, UK.
- Materials Innovation Factory, University of Liverpool, Crown Street, L69 7ZD, UK
- Centre of Excellence in Long-acting Therapeutics (CELT), University of Liverpool, Liverpool, L7 3NY, UK
| | - Faye Y Hern
- Department of Chemistry, University of Liverpool, Crown Street, Liverpool, L69 7ZD, UK.
- Materials Innovation Factory, University of Liverpool, Crown Street, L69 7ZD, UK
- Centre of Excellence in Long-acting Therapeutics (CELT), University of Liverpool, Liverpool, L7 3NY, UK
| | - Chung Liu
- Department of Chemistry, University of Liverpool, Crown Street, Liverpool, L69 7ZD, UK.
- Materials Innovation Factory, University of Liverpool, Crown Street, L69 7ZD, UK
- Centre of Excellence in Long-acting Therapeutics (CELT), University of Liverpool, Liverpool, L7 3NY, UK
| | - Kartik Temburnikar
- Department of Pharmacology and Molecular Sciences, The Johns Hopkins University School of Medicine, 725 North Wolfe St., Baltimore, MD, 21205, USA
| | - Pierre Chambon
- Department of Chemistry, University of Liverpool, Crown Street, Liverpool, L69 7ZD, UK.
- Materials Innovation Factory, University of Liverpool, Crown Street, L69 7ZD, UK
- Centre of Excellence in Long-acting Therapeutics (CELT), University of Liverpool, Liverpool, L7 3NY, UK
| | - Neill Liptrott
- Centre of Excellence in Long-acting Therapeutics (CELT), University of Liverpool, Liverpool, L7 3NY, UK
- Department of Pharmacology and Therapeutics, Institute of Systems, Molecular and Integrative Biology, University of Liverpool, Liverpool, L7 3NY, UK
| | - Tom O McDonald
- Department of Chemistry, University of Liverpool, Crown Street, Liverpool, L69 7ZD, UK.
- Materials Innovation Factory, University of Liverpool, Crown Street, L69 7ZD, UK
- Centre of Excellence in Long-acting Therapeutics (CELT), University of Liverpool, Liverpool, L7 3NY, UK
| | - Megan Neary
- Materials Innovation Factory, University of Liverpool, Crown Street, L69 7ZD, UK
- Centre of Excellence in Long-acting Therapeutics (CELT), University of Liverpool, Liverpool, L7 3NY, UK
- Department of Pharmacology and Therapeutics, Institute of Systems, Molecular and Integrative Biology, University of Liverpool, Liverpool, L7 3NY, UK
| | - Andrew Owen
- Materials Innovation Factory, University of Liverpool, Crown Street, L69 7ZD, UK
- Centre of Excellence in Long-acting Therapeutics (CELT), University of Liverpool, Liverpool, L7 3NY, UK
- Department of Pharmacology and Therapeutics, Institute of Systems, Molecular and Integrative Biology, University of Liverpool, Liverpool, L7 3NY, UK
| | - Caren Freel Meyers
- Department of Pharmacology and Molecular Sciences, The Johns Hopkins University School of Medicine, 725 North Wolfe St., Baltimore, MD, 21205, USA
| | - Steve P Rannard
- Department of Chemistry, University of Liverpool, Crown Street, Liverpool, L69 7ZD, UK.
- Materials Innovation Factory, University of Liverpool, Crown Street, L69 7ZD, UK
- Centre of Excellence in Long-acting Therapeutics (CELT), University of Liverpool, Liverpool, L7 3NY, UK
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8
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Design and Preparation of Avermectin Nanopesticide for Control and Prevention of Pine Wilt Disease. NANOMATERIALS 2022; 12:nano12111863. [PMID: 35683719 PMCID: PMC9182058 DOI: 10.3390/nano12111863] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/26/2022] [Revised: 05/19/2022] [Accepted: 05/21/2022] [Indexed: 02/06/2023]
Abstract
Pine wilt disease is a devastating forest disaster caused by Bursaphelenchus xylophilus, which has brought inestimable economic losses to the world's forestry due to lack of effective prevention and control measures. In this paper, a porous structure CuBTC was designed to deliver avermectin (AM) and a control vector insect Japanese pine sawyer (JPS) of B. xylophilus, which can improve the biocompatibility, anti-photolysis and delivery efficacy of AM. The results illustrated the cumulative release of pH-dependent AM@CuBTC was up to 12 days (91.9%), and also effectively avoided photodegradation (pH 9.0, 120 h, retention 69.4%). From the traceable monitoring experiment, the AM@CuBTC easily penetrated the body wall of the JPS larvae and was transmitted to tissue cells though contact and diffusion. Furthermore, AM@CuBTC can effectively enhance the cytotoxicity and utilization of AM, which provides valuable research value for the application of typical plant-derived nerve agents in the prevention and control of forestry pests. AM@CuBTC as an environmentally friendly nanopesticide can efficiently deliver AM to the larval intestines where it is absorbed by the larvae. AM@CuBTC can be transmitted to the epidemic wood and dead wood at a low concentration (10 mg/L).
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Kirtane AR, Karavasili C, Wahane A, Freitas D, Booz K, Le DTH, Hua T, Scala S, Lopes A, Hess K, Collins J, Tamang S, Ishida K, Kuosmanen JLP, Rajesh NU, Phan NV, Li J, Krogmann A, Lennerz JK, Hayward A, Langer R, Traverso G. Development of oil-based gels as versatile drug delivery systems for pediatric applications. SCIENCE ADVANCES 2022; 8:eabm8478. [PMID: 35622910 PMCID: PMC9140966 DOI: 10.1126/sciadv.abm8478] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/15/2021] [Accepted: 04/13/2022] [Indexed: 06/02/2023]
Abstract
Administering medicines to 0- to 5-year-old children in a resource-limited environment requires dosage forms that circumvent swallowing solids, avoid on-field reconstitution, and are thermostable, cheap, versatile, and taste masking. We present a strategy that stands to solve this multifaceted problem. As many drugs lack adequate water solubility, our formulations used oils, whose textures could be modified with gelling agents to form "oleogels." In a clinical study, we showed that the oleogels can be formulated to be as fluid as thickened beverages and as stiff as yogurt puddings. In swine, oleogels could deliver four drugs ranging three orders of magnitude in their water solubilities and two orders of magnitude in their partition coefficients. Oleogels could be stabilized at 40°C for prolonged durations and used without redispersion. Last, we developed a macrofluidic system enabling fixed and metered dosing. We anticipate that this platform could be adopted for pediatric dosing, palliative care, and gastrointestinal disease applications.
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Affiliation(s)
- Ameya R. Kirtane
- David H. Koch Institute for Integrative Cancer Research and Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
- Division of Gastroenterology, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Christina Karavasili
- David H. Koch Institute for Integrative Cancer Research and Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Aniket Wahane
- David H. Koch Institute for Integrative Cancer Research and Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Dylan Freitas
- Division of Gastroenterology, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Katelyn Booz
- Sensory Spectrum Inc., New Providence, NJ 07974, USA
| | - Dao Thi Hong Le
- David H. Koch Institute for Integrative Cancer Research and Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
- Swiss Federal Institute of Technology (ETH), Zurich 8092, Switzerland
| | - Tiffany Hua
- David H. Koch Institute for Integrative Cancer Research and Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Stephen Scala
- David H. Koch Institute for Integrative Cancer Research and Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
- Stonehill College, North Easton, MA 02357, USA
| | - Aaron Lopes
- David H. Koch Institute for Integrative Cancer Research and Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
- Division of Gastroenterology, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Kaitlyn Hess
- David H. Koch Institute for Integrative Cancer Research and Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Joy Collins
- David H. Koch Institute for Integrative Cancer Research and Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
- Division of Gastroenterology, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Siddartha Tamang
- David H. Koch Institute for Integrative Cancer Research and Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Keiko Ishida
- David H. Koch Institute for Integrative Cancer Research and Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Johannes L. P. Kuosmanen
- David H. Koch Institute for Integrative Cancer Research and Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Netra Unni Rajesh
- David H. Koch Institute for Integrative Cancer Research and Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
- University of Toronto, Toronto, ON, Canada
| | - Nhi V. Phan
- David H. Koch Institute for Integrative Cancer Research and Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Junwei Li
- David H. Koch Institute for Integrative Cancer Research and Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
- Division of Gastroenterology, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA 02115, USA
| | | | - Jochen K. Lennerz
- Department of Pathology, Center for Integrated Diagnostics, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114, USA
| | - Alison Hayward
- David H. Koch Institute for Integrative Cancer Research and Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
- Division of Gastroenterology, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA 02115, USA
- Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Robert Langer
- David H. Koch Institute for Integrative Cancer Research and Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
- Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Giovanni Traverso
- David H. Koch Institute for Integrative Cancer Research and Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
- Division of Gastroenterology, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA 02115, USA
- Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
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Veltman B, Harpaz D, Cohen Y, Poverenov E, Eltzov E. Characterization of the selective binding of modified chitosan nanoparticles to Gram-negative bacteria strains. Int J Biol Macromol 2022; 194:666-675. [PMID: 34822835 DOI: 10.1016/j.ijbiomac.2021.11.111] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2021] [Revised: 09/12/2021] [Accepted: 11/16/2021] [Indexed: 01/24/2023]
Abstract
Chitosan is a nature-sourced polysaccharide widely used in numerous applications. The antibacterial potential of chitosan has attracted researchers to further develop and utilize this polymer for the formation of biocompatible antibacterial agents for both the food and healthcare industries. The tested hypothesis in this study is that modified N-alkylaminated chitosan nanoparticles (CNPs) have selective binding properties to Gram-negative bacteria strains that result in bacterial aggregation. Various bacterial strains were tested of five Gram-negative bacteria including Erwinia carotovora, Escherichia coli, Pseudomonas aeruginosa, Salmonella, and Serratia marcescens, as well as three Gram-positive bacteria strains including Bacillus licheniformis, Bacillus megaterium, and Bacillus subtilis. The fluorescence microscopy characterization showed that the presence of CNPs caused the aggregation of Escherichia coli bacteria cells, where modified CNPs with a shorter chain length of the substituent caused a higher aggregation effect. Moreover, it was found that the CNPs exhibited a selective binding behavior to Gram-negative as compared to Gram-positive bacteria strains, mainly to Escherichia coli and Salmonella. Also, the scanning electron microscopy characterization showed that CNPs exhibited selective binding to Gram-negative bacteria, which was especially understood when both Gram-negative and Gram-positive bacteria strains were within the same sample. In addition, the bacterial viability assay suggests that CNPs with a lower degree of substitution have a higher inhibitory effect on bacterial growth. CNPs with longer side chains had a less inhibitory effect on the bacterial growth of Gram-negative strains, where a concentration-dependent response pattern was only seen for the cases of Gram-negative strains, and not for the case of Gram-positive strain. To conclude, the further understanding of the selective binding of CNPs to Gram-negative bacteria strains may produce new opportunities for the discovery and characterization of effective antibacterial agents.
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Affiliation(s)
- Boris Veltman
- Institute of Postharvest and Food Science, Department of Postharvest Science, Volcani Institute, Agricultural Research Organization, Rishon LeZion 7505101, Israel; Institute of Biochemistry, Food Science and Nutrition, Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem, Rehovot 76100, Israel.
| | - Dorin Harpaz
- Institute of Postharvest and Food Science, Department of Postharvest Science, Volcani Institute, Agricultural Research Organization, Rishon LeZion 7505101, Israel; Institute of Biochemistry, Food Science and Nutrition, Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem, Rehovot 76100, Israel.
| | - Yael Cohen
- Institute of Postharvest and Food Science, Department of Postharvest Science, Volcani Institute, Agricultural Research Organization, Rishon LeZion 7505101, Israel.
| | - Elena Poverenov
- Institute of Postharvest and Food Science, Department of Postharvest Science, Volcani Institute, Agricultural Research Organization, Rishon LeZion 7505101, Israel; Agro-Nanotechnology and Advanced Materials Research Center, Volcani Institute, Agricultural Research Organization, Rishon LeZion 7505101, Israel.
| | - Evgeni Eltzov
- Institute of Postharvest and Food Science, Department of Postharvest Science, Volcani Institute, Agricultural Research Organization, Rishon LeZion 7505101, Israel; Agro-Nanotechnology and Advanced Materials Research Center, Volcani Institute, Agricultural Research Organization, Rishon LeZion 7505101, Israel.
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11
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Elbaz NM, Tatham LM, Owen A, Rannard S, McDonald TO. Redispersible nanosuspensions as a plausible oral delivery system for curcumin. Food Hydrocoll 2021. [DOI: 10.1016/j.foodhyd.2021.107005] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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12
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Mubeen B, Ansar AN, Rasool R, Ullah I, Imam SS, Alshehri S, Ghoneim MM, Alzarea SI, Nadeem MS, Kazmi I. Nanotechnology as a Novel Approach in Combating Microbes Providing an Alternative to Antibiotics. Antibiotics (Basel) 2021; 10:1473. [PMID: 34943685 PMCID: PMC8698349 DOI: 10.3390/antibiotics10121473] [Citation(s) in RCA: 51] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Revised: 11/19/2021] [Accepted: 11/25/2021] [Indexed: 12/15/2022] Open
Abstract
The emergence of infectious diseases promises to be one of the leading mortality factors in the healthcare sector. Although several drugs are available on the market, newly found microorganisms carrying multidrug resistance (MDR) against which existing drugs cannot function effectively, giving rise to escalated antibiotic dosage therapies and the need to develop novel drugs, which require time, money, and manpower. Thus, the exploitation of antimicrobials has led to the production of MDR bacteria, and their prevalence and growth are a major concern. Novel approaches to prevent antimicrobial drug resistance are in practice. Nanotechnology-based innovation provides physicians and patients the opportunity to overcome the crisis of drug resistance. Nanoparticles have promising potential in the healthcare sector. Recently, nanoparticles have been designed to address pathogenic microorganisms. A multitude of processes that can vary with various traits, including size, morphology, electrical charge, and surface coatings, allow researchers to develop novel composite antimicrobial substances for use in different applications performing antimicrobial activities. The antimicrobial activity of inorganic and carbon-based nanoparticles can be applied to various research, medical, and industrial uses in the future and offer a solution to the crisis of antimicrobial resistance to traditional approaches. Metal-based nanoparticles have also been extensively studied for many biomedical applications. In addition to reduced size and selectivity for bacteria, metal-based nanoparticles have proven effective against pathogens listed as a priority, according to the World Health Organization (WHO). Moreover, antimicrobial studies of nanoparticles were carried out not only in vitro but in vivo as well in order to investigate their efficacy. In addition, nanomaterials provide numerous opportunities for infection prevention, diagnosis, treatment, and biofilm control. This study emphasizes the antimicrobial effects of nanoparticles and contrasts nanoparticles' with antibiotics' role in the fight against pathogenic microorganisms. Future prospects revolve around developing new strategies and products to prevent, control, and treat microbial infections in humans and other animals, including viral infections seen in the current pandemic scenarios.
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Affiliation(s)
- Bismillah Mubeen
- Institute of Molecular Biology and Biotechnology, The University of Lahore, Lahore 54000, Pakistan; (B.M.); (A.N.A.); (R.R.); (I.U.)
| | - Aunza Nayab Ansar
- Institute of Molecular Biology and Biotechnology, The University of Lahore, Lahore 54000, Pakistan; (B.M.); (A.N.A.); (R.R.); (I.U.)
| | - Rabia Rasool
- Institute of Molecular Biology and Biotechnology, The University of Lahore, Lahore 54000, Pakistan; (B.M.); (A.N.A.); (R.R.); (I.U.)
| | - Inam Ullah
- Institute of Molecular Biology and Biotechnology, The University of Lahore, Lahore 54000, Pakistan; (B.M.); (A.N.A.); (R.R.); (I.U.)
| | - Syed Sarim Imam
- Department of Pharmaceutics, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia; (S.S.I.); (S.A.)
| | - Sultan Alshehri
- Department of Pharmaceutics, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia; (S.S.I.); (S.A.)
| | - Mohammed M. Ghoneim
- Department of Pharmacy Practice, College of Pharmacy, AlMaarefa University, Ad Diriyah 13713, Saudi Arabia;
| | - Sami I. Alzarea
- Department of Pharmacology, College of Pharmacy, Jouf University, Sakaka 72341, Saudi Arabia;
| | - Muhammad Shahid Nadeem
- Department of Biochemistry, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Imran Kazmi
- Department of Biochemistry, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia
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Mudassir MA, Aslam HZ, Ansari TM, Zhang H, Hussain I. Fundamentals and Design-Led Synthesis of Emulsion-Templated Porous Materials for Environmental Applications. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2021; 8:e2102540. [PMID: 34553500 PMCID: PMC8596121 DOI: 10.1002/advs.202102540] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/17/2021] [Revised: 07/27/2021] [Indexed: 05/06/2023]
Abstract
Emulsion templating is at the forefront of producing a wide array of porous materials that offers interconnected porous structure, easy permeability, homogeneous flow-through, high diffusion rates, convective mass transfer, and direct accessibility to interact with atoms/ions/molecules throughout the exterior and interior of the bulk. These interesting features together with easily available ingredients, facile preparation methods, flexible pore-size tuning protocols, controlled surface modification strategies, good physicochemical and dimensional stability, lightweight, convenient processing and subsequent recovery, superior pollutants remediation/monitoring performance, and decent recyclability underscore the benchmark potential of the emulsion-templated porous materials in large-scale practical environmental applications. To this end, many research breakthroughs in emulsion templating technique witnessed by the recent achievements have been widely unfolded and currently being extensively explored to address many of the environmental challenges. Taking into account the burgeoning progress of the emulsion-templated porous materials in the environmental field, this review article provides a conceptual overview of emulsions and emulsion templating technique, sums up the general procedures to design and fabricate many state-of-the-art emulsion-templated porous materials, and presents a critical overview of their marked momentum in adsorption, separation, disinfection, catalysis/degradation, capture, and sensing of the inorganic, organic and biological contaminants in water and air.
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Affiliation(s)
- Muhammad Ahmad Mudassir
- Department of Chemistry & Chemical EngineeringSBA School of Science & Engineering (SBASSE)Lahore University of Management Sciences (LUMS)Lahore54792Pakistan
- Department of ChemistryKhwaja Fareed University of Engineering & Information Technology (KFUEIT)Rahim Yar Khan64200Pakistan
- Institute of Chemical SciencesBahauddin Zakariya University (BZU)Multan60800Pakistan
- Department of ChemistryUniversity of LiverpoolOxford StreetLiverpoolL69 7ZDUK
| | - Hafiz Zohaib Aslam
- Department of Chemistry & Chemical EngineeringSBA School of Science & Engineering (SBASSE)Lahore University of Management Sciences (LUMS)Lahore54792Pakistan
| | - Tariq Mahmood Ansari
- Institute of Chemical SciencesBahauddin Zakariya University (BZU)Multan60800Pakistan
| | - Haifei Zhang
- Department of ChemistryUniversity of LiverpoolOxford StreetLiverpoolL69 7ZDUK
| | - Irshad Hussain
- Department of Chemistry & Chemical EngineeringSBA School of Science & Engineering (SBASSE)Lahore University of Management Sciences (LUMS)Lahore54792Pakistan
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14
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Thabet AF, Boraei HA, Galal OA, El-Samahy MFM, Mousa KM, Zhang YZ, Tuda M, Helmy EA, Wen J, Nozaki T. Silica nanoparticles as pesticide against insects of different feeding types and their non-target attraction of predators. Sci Rep 2021; 11:14484. [PMID: 34262071 PMCID: PMC8280210 DOI: 10.1038/s41598-021-93518-9] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2021] [Accepted: 06/25/2021] [Indexed: 02/06/2023] Open
Abstract
The agricultural use of silica (SiO2) nanoparticles (NPs) has the potential to control insect pests while the safety and tritrophic effects on plants and beneficial natural enemies remains unknown. Here, we evaluate the effects of silica NPs on insect pests with different feeding niches, natural enemies, and a plant. Silica NPs were applied at different concentrations (75-425 mg/L) on field-cultivated faba bean and soybean for two growing seasons. The faba bean pests, the cowpea aphid Aphis craccivora and the American serpentine leafminer Liriomyza trifolii, and the soybean pest, the cotton leafworm Spodoptera littoralis, were monitored along with their associated predators. Additional laboratory experiments were performed to test the effects of silica NPs on the growth of faba bean seedlings and to determine whether the rove beetle Paederus fuscipes is attracted to cotton leafworm-infested soybean treated with silica NPs. In the field experiments, silica NPs reduced the populations of all three insect pests and their associated predators, including rove beetles, as the concentration of silica NPs increased. In soybean fields, however, the total number of predators initially increased after applying the lowest concentration. An olfactometer-based choice test found that rove beetles were more likely to move towards an herbivore-infested plant treated with silica NPs than to a water-treated control, suggesting that silica NPs enhance the attraction of natural enemies via herbivore-induced plant volatiles. In the laboratory, while silica NPs inhibited the development of faba bean roots at 400 mg/L, they did not affect germination percentage, germination time, shoot length, or vigor index compared to the control.
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Affiliation(s)
- Ahmed F Thabet
- Economic Entomology Department, Faculty of Agriculture, Kafrelsheikh University, Kafr El-sheikh, Egypt.
- Genetics Department, Faculty of Agriculture, Kafrelsheikh University, Kafr El-sheikh, Egypt.
- Field Crop Pests Research Department, Plant Protection Research Institute, Agricultural Research Center, Sakha, Kafr El-sheikh, Egypt.
- Laboratory of Insect Natural Enemies, Institute of Biological Control, Department of Bioresource Sciences, Faculty of Agriculture, Kyushu University, Fukuoka, 819-0395, Japan.
| | - Hessien A Boraei
- Economic Entomology Department, Faculty of Agriculture, Kafrelsheikh University, Kafr El-sheikh, Egypt
| | - Ola A Galal
- Genetics Department, Faculty of Agriculture, Kafrelsheikh University, Kafr El-sheikh, Egypt
| | - Magdy F M El-Samahy
- Field Crop Pests Research Department, Plant Protection Research Institute, Agricultural Research Center, Sakha, Kafr El-sheikh, Egypt
| | - Kareem M Mousa
- Economic Entomology Department, Faculty of Agriculture, Kafrelsheikh University, Kafr El-sheikh, Egypt
- Laboratory of Insect Natural Enemies, Institute of Biological Control, Department of Bioresource Sciences, Faculty of Agriculture, Kyushu University, Fukuoka, 819-0395, Japan
| | - Yao Z Zhang
- Laboratory of Insect Natural Enemies, Institute of Biological Control, Department of Bioresource Sciences, Faculty of Agriculture, Kyushu University, Fukuoka, 819-0395, Japan
| | - Midori Tuda
- Laboratory of Insect Natural Enemies, Institute of Biological Control, Department of Bioresource Sciences, Faculty of Agriculture, Kyushu University, Fukuoka, 819-0395, Japan.
| | - Eman A Helmy
- Laboratory of Insect Natural Enemies, Institute of Biological Control, Department of Bioresource Sciences, Faculty of Agriculture, Kyushu University, Fukuoka, 819-0395, Japan
- Regional Centre for Mycology and Biotechnology (RCMB), Al-Azhar University, Cairo, Egypt
| | - Jian Wen
- Laboratory of Insect Natural Enemies, Institute of Biological Control, Department of Bioresource Sciences, Faculty of Agriculture, Kyushu University, Fukuoka, 819-0395, Japan
| | - Tsubasa Nozaki
- Entomological Laboratory, Graduate School of Bioresource and Bioenvironmental Sciences, Kyushu University, Fukuoka, Japan
- The Kyushu University Museum, Fukuoka, Japan
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15
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Bocca B, Barone F, Petrucci F, Benetti F, Picardo V, Prota V, Amendola G. Nanopesticides: Physico-chemical characterization by a combination of advanced analytical techniques. Food Chem Toxicol 2020; 146:111816. [PMID: 33080330 DOI: 10.1016/j.fct.2020.111816] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Revised: 09/29/2020] [Accepted: 10/11/2020] [Indexed: 01/09/2023]
Abstract
The recent application of manufactured nanomaterials (MNMs) in plant protection products (PPPs) enhances stability of the active substance (a.s.), minimizes application losses, reduces the quantities of a.s., increases coverage on leaf surface, improves precise application, etc. Besides offering benefits, there is high concern about the potential risk for human and environment associated with the use of nanopesticides. In this study, a panel of complementary methodologies were used to determine size distribution and chemical identification of four different formulations of nanopesticides. Measurements were performed by dynamic light scattering (DLS), transmission electron microscopy (TEM), asymmetric field flow fractionation-multi angle light scattering (AF4-FFF-MALS), gas/liquid chromatography with mass spectrometry (GC-MS/MS, LC-MS/MS) or diode array detector (HPLC-DAD) and inductively coupled plasma mass spectrometry (ICP-MS). Results indicated average size values in the ranges: 27.4-148.7 nm by DLS; 39.1-82.0 nm by AF4-FFF-MALS; and 42-90 nm by TEM. Linked to these nanosized particles both organic active ingredients and inorganic ones were identified. In addition, the obtained data revealed that all the four PPPs contained more than 50% of particles with number size distribution between 1 and 100 nm and, according to the European Commission definition, they can be defined as nanopesticides.
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Affiliation(s)
- B Bocca
- Environment and Health Department, Istituto Superiore di Sanità, Rome, Italy
| | - F Barone
- Environment and Health Department, Istituto Superiore di Sanità, Rome, Italy
| | - F Petrucci
- Environment and Health Department, Istituto Superiore di Sanità, Rome, Italy
| | - F Benetti
- European Center for the Sustainable Impact of Nanotechnology - Laboratory of EcamRicert Srl, Padua, Italy
| | - V Picardo
- Environment and Health Department, Istituto Superiore di Sanità, Rome, Italy
| | - V Prota
- Environment and Health Department, Istituto Superiore di Sanità, Rome, Italy
| | - G Amendola
- Environment and Health Department, Istituto Superiore di Sanità, Rome, Italy.
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16
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Liu Y, Yang G, Jin S, Xu L, Zhao CX. Development of High-Drug-Loading Nanoparticles. Chempluschem 2020; 85:2143-2157. [PMID: 32864902 DOI: 10.1002/cplu.202000496] [Citation(s) in RCA: 117] [Impact Index Per Article: 29.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2020] [Revised: 08/07/2020] [Indexed: 12/20/2022]
Abstract
Formulating drugs into nanoparticles offers many attractive advantages over free drugs including improved bioavailability, minimized toxic side effects, enhanced drug delivery, feasibility of incorporating other functions such as controlled release, imaging agents for imaging, targeting delivery, and loading more than one drug for combination therapies. One of the key parameters is drug loading, which is defined as the mass ratio of drug to drug-loaded nanoparticles. Currently, most nanoparticle systems have relatively low drug loading (<10 wt%), and developing methods to increase drug loading remains a challenge. This Minireview presents an overview of recent research on developing nanoparticles with high drug loading (>10 wt%) from the perspective of synthesis strategies, including post-loading, co-loading, and pre-loading. Based on these three different strategies, various nanoparticle systems with different materials and drugs are summarized and discussed in terms of their synthesis methods, drug loadings, encapsulation efficiencies, release profiles, stabilities, and their applications in drug delivery. The advantages and disadvantages of these strategies are presented with an objective of providing useful design rules for future development of high-drug-loading nanoparticles.
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Affiliation(s)
- Yun Liu
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, St. Lucia, Queensland, 4072, Australia
| | - Guangze Yang
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, St. Lucia, Queensland, 4072, Australia
| | - Song Jin
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, St. Lucia, Queensland, 4072, Australia
| | - Letao Xu
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, St. Lucia, Queensland, 4072, Australia
| | - Chun-Xia Zhao
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, St. Lucia, Queensland, 4072, Australia
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17
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Yang L, Zhang C, Huang F, Liu J, Zhang Y, Yang C, Ren C, Chu L, Liu B, Liu J. Triclosan-based supramolecular hydrogels as nanoantibiotics for enhanced antibacterial activity. J Control Release 2020; 324:354-365. [PMID: 32454121 DOI: 10.1016/j.jconrel.2020.05.034] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2020] [Revised: 05/17/2020] [Accepted: 05/21/2020] [Indexed: 12/20/2022]
Abstract
With the emergence of drug-resistant bacteria, conventional antibiotics are becoming increasingly ineffective for the treatment of bacterial infections. Nanomaterial-modified antibiotics, denoted as "nanoantibiotics", can usually circumvent most of the shortcomings of conventional antibiotics, thus improving antibacterial activities. Here, we developed triclosan-based supramolecular hydrogel nanoantibiotics by conjugating small molecule antibiotic triclosan (TCS) to self-assembling peptides. The resultant nanoantibiotics presented many beneficial characteristics: (i) a stable three-dimensional nanofiber structure; (ii) increased TCS solubility by 850-fold; (iii) acid-responsive TCS release; (iv) favorable biocompatibility. In consequence, the nanoantibiotics showed potent in vitro broad-spectrum antibacterial activities against both Gram-positive and Gram-negative bacteria based on the cooperative effect of antibiotic TCS and the nanostructure-induced bacterial membrane disruption. Furthermore, the TCS-based supramolecular hydrogel nanoantibiotics exhibited enhanced antibacterial activities with low side effects, according to the in vivo antibacterial evaluation at the macro and micro level. Therefore, the simple and effective hydrogel nanoantibiotics developed here hold great potential for the treatment of intractable bacterial infections.
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Affiliation(s)
- Lijun Yang
- Tianjin Key Laboratory of Radiation Medicine and Molecular Nuclear Medicine, Institute of Radiation Medicine, Chinese Academy of Medical Sciences, Peking Union Medical College, Tianjin 300192, PR China
| | - Congrou Zhang
- Tianjin Key Laboratory of Radiation Medicine and Molecular Nuclear Medicine, Institute of Radiation Medicine, Chinese Academy of Medical Sciences, Peking Union Medical College, Tianjin 300192, PR China
| | - Fan Huang
- Tianjin Key Laboratory of Radiation Medicine and Molecular Nuclear Medicine, Institute of Radiation Medicine, Chinese Academy of Medical Sciences, Peking Union Medical College, Tianjin 300192, PR China
| | - Jinjian Liu
- Tianjin Key Laboratory of Radiation Medicine and Molecular Nuclear Medicine, Institute of Radiation Medicine, Chinese Academy of Medical Sciences, Peking Union Medical College, Tianjin 300192, PR China
| | - Yumin Zhang
- Tianjin Key Laboratory of Radiation Medicine and Molecular Nuclear Medicine, Institute of Radiation Medicine, Chinese Academy of Medical Sciences, Peking Union Medical College, Tianjin 300192, PR China
| | - Cuihong Yang
- Tianjin Key Laboratory of Radiation Medicine and Molecular Nuclear Medicine, Institute of Radiation Medicine, Chinese Academy of Medical Sciences, Peking Union Medical College, Tianjin 300192, PR China
| | - Chunhua Ren
- Tianjin Key Laboratory of Radiation Medicine and Molecular Nuclear Medicine, Institute of Radiation Medicine, Chinese Academy of Medical Sciences, Peking Union Medical College, Tianjin 300192, PR China
| | - Liping Chu
- Tianjin Key Laboratory of Radiation Medicine and Molecular Nuclear Medicine, Institute of Radiation Medicine, Chinese Academy of Medical Sciences, Peking Union Medical College, Tianjin 300192, PR China.
| | - Bin Liu
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore 117585, Singapore.
| | - Jianfeng Liu
- Tianjin Key Laboratory of Radiation Medicine and Molecular Nuclear Medicine, Institute of Radiation Medicine, Chinese Academy of Medical Sciences, Peking Union Medical College, Tianjin 300192, PR China.
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18
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Liu Y, Yang G, Baby T, Tengjisi, Chen D, Weitz DA, Zhao C. Stable Polymer Nanoparticles with Exceptionally High Drug Loading by Sequential Nanoprecipitation. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.201913539] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Yun Liu
- Australian Institute for Bioengineering and Nanotechnology University of Queensland St. Lucia Queensland 4072 Australia
| | - Guangze Yang
- Australian Institute for Bioengineering and Nanotechnology University of Queensland St. Lucia Queensland 4072 Australia
| | - Thejus Baby
- Australian Institute for Bioengineering and Nanotechnology University of Queensland St. Lucia Queensland 4072 Australia
| | - Tengjisi
- Australian Institute for Bioengineering and Nanotechnology University of Queensland St. Lucia Queensland 4072 Australia
| | - Dong Chen
- Institute of Process Equipment, College of Energy Engineering Zhejiang University Hangzhou Zhejiang 310027 China
- John A. Paulson School of Engineering and Applied Sciences Harvard University Cambridge MA 02138 USA
| | - David A. Weitz
- John A. Paulson School of Engineering and Applied Sciences Harvard University Cambridge MA 02138 USA
| | - Chun‐Xia Zhao
- Australian Institute for Bioengineering and Nanotechnology University of Queensland St. Lucia Queensland 4072 Australia
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19
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Liu Y, Yang G, Baby T, Tengjisi, Chen D, Weitz DA, Zhao C. Stable Polymer Nanoparticles with Exceptionally High Drug Loading by Sequential Nanoprecipitation. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/anie.201913539] [Citation(s) in RCA: 57] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Yun Liu
- Australian Institute for Bioengineering and Nanotechnology University of Queensland St. Lucia Queensland 4072 Australia
| | - Guangze Yang
- Australian Institute for Bioengineering and Nanotechnology University of Queensland St. Lucia Queensland 4072 Australia
| | - Thejus Baby
- Australian Institute for Bioengineering and Nanotechnology University of Queensland St. Lucia Queensland 4072 Australia
| | - Tengjisi
- Australian Institute for Bioengineering and Nanotechnology University of Queensland St. Lucia Queensland 4072 Australia
| | - Dong Chen
- Institute of Process Equipment, College of Energy Engineering Zhejiang University Hangzhou Zhejiang 310027 China
- John A. Paulson School of Engineering and Applied Sciences Harvard University Cambridge MA 02138 USA
| | - David A. Weitz
- John A. Paulson School of Engineering and Applied Sciences Harvard University Cambridge MA 02138 USA
| | - Chun‐Xia Zhao
- Australian Institute for Bioengineering and Nanotechnology University of Queensland St. Lucia Queensland 4072 Australia
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20
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Hobson JJ, Curley P, Savage AC, Al-Khouja A, Siccardi M, Flexner C, Meyers CF, Owen A, Rannard SP. Anhydrous nanoprecipitation for the preparation of nanodispersions of tenofovir disoproxil fumarate in oils as candidate long-acting injectable depot formulations. NANOSCALE ADVANCES 2019; 1:4301-4307. [PMID: 36134394 PMCID: PMC9417103 DOI: 10.1039/c9na00529c] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/23/2019] [Accepted: 10/07/2019] [Indexed: 06/16/2023]
Abstract
The facile formation of drug nanoparticles in injectable/ingestible oils, of water-soluble antiretroviral tenofovir disoproxil fumarate, using a novel nanoprecipitation is presented with studies showing drug release into relevant aqueous media.
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Affiliation(s)
- James J Hobson
- Department of Chemistry, University of Liverpool Crown Street Liverpool L69 7ZD UK
| | - Paul Curley
- Department of Molecular and Clinical Pharmacology, University of Liverpool Block H, 70 Pembroke Place Liverpool L69 3GF UK
| | - Alison C Savage
- Department of Chemistry, University of Liverpool Crown Street Liverpool L69 7ZD UK
| | - Amer Al-Khouja
- Department of Pharmacology and Molecular Sciences, The Johns Hopkins University School of Medicine 725 North Wolfe St. Baltimore MD 21205 USA
| | - Marco Siccardi
- Department of Molecular and Clinical Pharmacology, University of Liverpool Block H, 70 Pembroke Place Liverpool L69 3GF UK
| | - Charles Flexner
- Department of Pharmacology and Molecular Sciences, The Johns Hopkins University School of Medicine 725 North Wolfe St. Baltimore MD 21205 USA
- Department of Medicine, The Johns Hopkins University School of Medicine 575 Osler Building, 600 N. Wolfe St. Baltimore MD 21287 USA
| | - Caren Freel Meyers
- Department of Pharmacology and Molecular Sciences, The Johns Hopkins University School of Medicine 725 North Wolfe St. Baltimore MD 21205 USA
| | - Andrew Owen
- Department of Molecular and Clinical Pharmacology, University of Liverpool Block H, 70 Pembroke Place Liverpool L69 3GF UK
| | - Steve P Rannard
- Department of Chemistry, University of Liverpool Crown Street Liverpool L69 7ZD UK
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21
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Savage AC, Tatham LM, Siccardi M, Scott T, Vourvahis M, Clark A, Rannard SP, Owen A. Improving maraviroc oral bioavailability by formation of solid drug nanoparticles. Eur J Pharm Biopharm 2019; 138:30-36. [DOI: 10.1016/j.ejpb.2018.05.015] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2018] [Revised: 04/09/2018] [Accepted: 05/14/2018] [Indexed: 01/08/2023]
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22
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Semi-solid prodrug nanoparticles for long-acting delivery of water-soluble antiretroviral drugs within combination HIV therapies. Nat Commun 2019; 10:1413. [PMID: 30926773 PMCID: PMC6441007 DOI: 10.1038/s41467-019-09354-z] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2018] [Accepted: 03/01/2019] [Indexed: 12/29/2022] Open
Abstract
The increasing global prevalence of human immunodeficiency virus (HIV) is estimated at 36.7 million people currently infected. Lifelong antiretroviral (ARV) drug combination dosing allows management as a chronic condition by suppressing circulating viral load to allow for a near-normal life; however, the daily burden of oral administration may lead to non-adherence and drug resistance development. Long-acting (LA) depot injections of nanomilled poorly water-soluble ARVs have shown highly promising clinical results with drug exposure largely maintained over months after a single injection. ARV oral combinations rely on water-soluble backbone drugs which are not compatible with nanomilling. Here, we evaluate a unique prodrug/nanoparticle formation strategy to facilitate semi-solid prodrug nanoparticles (SSPNs) of the highly water-soluble nucleoside reverse transcriptase inhibitor (NRTI) emtricitabine (FTC), and injectable aqueous nanodispersions; in vitro to in vivo extrapolation (IVIVE) modelling predicts sustained prodrug release, with activation in relevant biological environments, representing a first step towards complete injectable LA regimens containing NRTIs. Non-adherence to daily drug regimens is responsible for many negative clinical effects including drug resistance in life-long treatments for HIV. Here, the authors report on a HIV prodrug nanoparticle platform for long-acting sustained release of water-soluble drug compounds following injection.
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23
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Zhang J, Nie W, Chen R, Chelora J, Wan Y, Cui X, Zhang X, Zhang W, Chen X, Xie HY, Lee CS. Green Mass Production of Pure Nanodrugs via an Ice-Template-Assisted Strategy. NANO LETTERS 2019; 19:658-665. [PMID: 30346182 DOI: 10.1021/acs.nanolett.8b03043] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
To make nanomedicine potentially applicable in a clinical setting, several methods have been developed to synthesize pure nanodrugs (PNDs) without using any additional inert carriers. In this work, we report a novel green, low-cost, and scalable ice-template-assisted approach which shows several unique characteristics. First, the whole process only requires adding a drug solution into an ice template and subsequent melting (or freeze-drying), allowing easy industrial mass production with low capital investment. Second, the production yield is much higher than that of the traditional reprecipitation approach. The yield of Curcumin (Cur) PNDs is over two orders (∼140 times) magnitude higher than that obtained in a typical reprecipitation preparation. By adjusting simple processing parameters, PNDs with different sizes (∼20-200 nm) can be controllably obtained. Finally, the present approach can be easily applicable for a wide range of hydrophobic therapeutic drugs without any structural modification.
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Affiliation(s)
- Jinfeng Zhang
- School of Life Science , Beijing Institute of Technology , Beijing 100081 , P. R. China
- Center of Super-Diamond and Advanced Films (COSDAF) & Department of Chemistry , City University of Hong Kong , 83 Tat Chee Avenue , Kowloon , Hong Kong SAR , P. R. China
| | - Weidong Nie
- School of Life Science , Beijing Institute of Technology , Beijing 100081 , P. R. China
| | - Rui Chen
- Center of Super-Diamond and Advanced Films (COSDAF) & Department of Materials Science and Engineering , City University of Hong Kong , 83 Tat Chee Avenue , Kowloon , Hong Kong SAR , P. R. China
| | - Jipsa Chelora
- Center of Super-Diamond and Advanced Films (COSDAF) & Department of Chemistry , City University of Hong Kong , 83 Tat Chee Avenue , Kowloon , Hong Kong SAR , P. R. China
| | - Yingpeng Wan
- Center of Super-Diamond and Advanced Films (COSDAF) & Department of Chemistry , City University of Hong Kong , 83 Tat Chee Avenue , Kowloon , Hong Kong SAR , P. R. China
| | - Xiao Cui
- Center of Super-Diamond and Advanced Films (COSDAF) & Department of Chemistry , City University of Hong Kong , 83 Tat Chee Avenue , Kowloon , Hong Kong SAR , P. R. China
| | - Xiaohong Zhang
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices , Soochow University , Suzhou , Jiangsu 215123 , P. R. China
| | - Wenjun Zhang
- Center of Super-Diamond and Advanced Films (COSDAF) & Department of Materials Science and Engineering , City University of Hong Kong , 83 Tat Chee Avenue , Kowloon , Hong Kong SAR , P. R. China
| | - Xianfeng Chen
- School of Engineering, Institute for Bioengineering , The University of Edinburgh , King's Buildings, Mayfield Road , Edinburgh EH9 3JL , United Kingdom
| | - Hai-Yan Xie
- School of Life Science , Beijing Institute of Technology , Beijing 100081 , P. R. China
| | - Chun-Sing Lee
- Center of Super-Diamond and Advanced Films (COSDAF) & Department of Chemistry , City University of Hong Kong , 83 Tat Chee Avenue , Kowloon , Hong Kong SAR , P. R. China
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24
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Gao C, Bhattarai P, Chen M, Zhang N, Hameed S, Yue X, Dai Z. Amphiphilic Drug Conjugates as Nanomedicines for Combined Cancer Therapy. Bioconjug Chem 2018; 29:3967-3981. [DOI: 10.1021/acs.bioconjchem.8b00692] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Chuang Gao
- Department of Biomedical Engineering, College of Engineering, Peking University, Beijing, 100871, China
| | - Pravin Bhattarai
- Department of Biomedical Engineering, College of Engineering, Peking University, Beijing, 100871, China
| | - Min Chen
- Department of Biomedical Engineering, College of Engineering, Peking University, Beijing, 100871, China
| | - Nisi Zhang
- Department of Biomedical Engineering, College of Engineering, Peking University, Beijing, 100871, China
| | - Sadaf Hameed
- Department of Biomedical Engineering, College of Engineering, Peking University, Beijing, 100871, China
| | - Xiuli Yue
- School of Environment, Harbin Institute of Technology, Harbin 150080, China
| | - Zhifei Dai
- Department of Biomedical Engineering, College of Engineering, Peking University, Beijing, 100871, China
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25
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Qiao J, Purro M, Liu Z, Xiong MP. Terpyridine-Micelles for Inhibiting Bacterial Biofilm Development. ACS Infect Dis 2018; 4:1346-1354. [PMID: 29974746 DOI: 10.1021/acsinfecdis.8b00091] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Iron plays a critical role in bacterial infections and is especially critical for supporting biofilm formation. Until recently, Fe(III) was assumed to be the most relevant form of iron to chelate in therapeutic antimicrobial strategies due to its natural abundance under normal oxygen and physiologic conditions. Recent clinical data obtained from cystic fibrosis (CF) patients found that there is actually quite an abundance of Fe(II) present in sputum and that there exists a significant relationship between sputum Fe(II) concentration and severity of the disease. A biocompatible mixed micelle formed from the self-assembly of poly(lactic- co-glycolic acid)- block-methoxy poly(ethylene glycol) (PLGA- b-mPEG) and poly(lactic- co-glycolic acid)- block-poly(terpyridine)5 [PLGA- b-p(Tpy)5] polymers was prepared to chelate Fe(II) (Tpy-micelle). Tpy-micelles showed high selectivity for Fe(II) over Fe(III), decreased biofilm mass more effectively under anaerobic conditions at >4 μM Tpy-micelles, reduced bacteria growth in biofilms by >99.9% at 128 μM Tpy-micelles, effectively penetrated throughout a 1-day old biofilm, and inhibited biofilm development in a concentration-dependent manner. This study reveals that Fe(II) chelating Tpy-micelles are a promising addition to Fe(III) chelating strategies to inhibit biofilm formation in CF lung infections.
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Affiliation(s)
- Jing Qiao
- Department of Pharmaceutical and Biomedical Sciences, College of Pharmacy, University of Georgia, 250 W. Green Street, Athens, Georgia 30602-2352, United States
| | - Max Purro
- Department of Pharmaceutical and Biomedical Sciences, College of Pharmacy, University of Georgia, 250 W. Green Street, Athens, Georgia 30602-2352, United States
- Pharmaceutical Sciences Division, School of Pharmacy, University of Wisconsin−Madison, 777 Highland Avenue, Madison, Wisconsin 53705-2222, United States
| | - Zhi Liu
- Department of Pharmaceutical and Biomedical Sciences, College of Pharmacy, University of Georgia, 250 W. Green Street, Athens, Georgia 30602-2352, United States
| | - May P. Xiong
- Department of Pharmaceutical and Biomedical Sciences, College of Pharmacy, University of Georgia, 250 W. Green Street, Athens, Georgia 30602-2352, United States
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26
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Shen Y, Li X, Le Y. Amorphous Nanoparticulate Formulation of Sirolimus and Its Tablets. Pharmaceutics 2018; 10:pharmaceutics10030155. [PMID: 30208637 PMCID: PMC6161202 DOI: 10.3390/pharmaceutics10030155] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2018] [Revised: 08/28/2018] [Accepted: 08/29/2018] [Indexed: 11/28/2022] Open
Abstract
Nanocrystallization and amorphization have proven to be two effective strategies to improve the bioavailability of water-insoluble drugs. The purpose of our work was to develop a nano-formulated tablet of sirolimus (SRL) for enhanced dissolution. Amorphous SRL nanocomposites were prepared using anti-solvent precipitation via a high-gravity rotating packed bed. Various factors that affect particle size and size distribution, such as excipients, rotating speed, antisolvent/solvent flow rate, were investigated. Structure, stability and in vitro dissolution of the as-prepared SRL were evaluated. Furthermore, the nanoparticulated SRL tablet formula was screened to control drug release. Importantly, SRL tablets exhibit different dissolution profile by adjusting HPMC (hydroxypropyl methyl cellulose) content, which makes them more suitable for various formulation developments.
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Affiliation(s)
- Yudong Shen
- State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, China.
| | - Xingya Li
- State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, China.
| | - Yuan Le
- State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, China.
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27
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Rudramurthy GR, Swamy MK. Potential applications of engineered nanoparticles in medicine and biology: an update. J Biol Inorg Chem 2018; 23:1185-1204. [PMID: 30097748 DOI: 10.1007/s00775-018-1600-6] [Citation(s) in RCA: 71] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2018] [Accepted: 07/26/2018] [Indexed: 12/22/2022]
Abstract
Nanotechnology advancements have led to the development of its allied fields, such as nanoparticle synthesis and their applications in the field of biomedicine. Nanotechnology driven innovations have given a hope to the patients as well as physicians in solving the complex medical problems. Nanoparticles with a size ranging from 0.2 to 100 nm are associated with an increased surface to volume ratio. Moreover, the physico-chemical and biological properties of nanoparticles can be modified depending on the applications. Different nanoparticles have been documented with a wide range of applications in various fields of medicine and biology including cancer therapy, drug delivery, tissue engineering, regenerative medicine, biomolecules detection, and also as antimicrobial agents. However, the development of stable and effective nanoparticles requires a profound knowledge on both physico-chemical features of nanomaterials and their intended applications. Further, the health risks associated with the use of engineered nanoparticles needs a serious attention.
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Affiliation(s)
| | - Mallappa Kumara Swamy
- Department of Crop Science, Faculty of Agriculture, Universiti Putra Malaysia, 43400, Serdang, Selangor, Malaysia.
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28
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Zhao X, Cui H, Wang Y, Sun C, Cui B, Zeng Z. Development Strategies and Prospects of Nano-based Smart Pesticide Formulation. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2018; 66:6504-6512. [PMID: 28654254 DOI: 10.1021/acs.jafc.7b02004] [Citation(s) in RCA: 258] [Impact Index Per Article: 43.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
Pesticides are important inputs for enhancing crop productivity and preventing major biological disasters. However, more than 90% of pesticides run off into the environment and reside in agricultural products in the process of application as a result of the disadvantages of conventional pesticide formulation, such as the use of a harmful solvent, poor dispersion, dust drift, etc. In recent years, using nanotechnology to create novel formulations has shown great potential in improving the efficacy and safety of pesticides. The development of nano-based pesticide formulation aims at precise release of necessary and sufficient amounts of their active ingredients in responding to environmental triggers and biological demands through controlled release mechanisms. This paper discusses several scientific issues and strategies regarding the development of nano-based pesticide formulations: (i) construction of water-based dispersion pesticide nanoformulation, (ii) mechanism on leaf-targeted deposition and dose transfer of pesticide nanodelivery system, (iii) mechanism on increased bioavailability of nano-based pesticide formulation, and (iv) impacts of nanoformulation on natural degradation and biosafety of pesticide residues.
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29
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Wais U, Nawrath MM, Jackson AW, Zhang H. Triclosan nanoparticles via emulsion-freeze-drying for enhanced antimicrobial activity. Colloid Polym Sci 2018. [DOI: 10.1007/s00396-018-4312-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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30
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Bakshi RP, Tatham LM, Savage AC, Tripathi AK, Mlambo G, Ippolito MM, Nenortas E, Rannard SP, Owen A, Shapiro TA. Long-acting injectable atovaquone nanomedicines for malaria prophylaxis. Nat Commun 2018; 9:315. [PMID: 29358624 PMCID: PMC5778127 DOI: 10.1038/s41467-017-02603-z] [Citation(s) in RCA: 61] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2017] [Accepted: 12/12/2017] [Indexed: 12/04/2022] Open
Abstract
Chemoprophylaxis is currently the best available prevention from malaria, but its efficacy is compromised by non-adherence to medication. Here we develop a long-acting injectable formulation of atovaquone solid drug nanoparticles that confers long-lived prophylaxis against Plasmodium berghei ANKA malaria in C57BL/6 mice. Protection is obtained at plasma concentrations above 200 ng ml-1 and is causal, attributable to drug activity against liver stage parasites. Parasites that appear after subtherapeutic doses remain atovaquone-sensitive. Pharmacokinetic-pharmacodynamic analysis indicates protection can translate to humans at clinically achievable and safe drug concentrations, potentially offering protection for at least 1 month after a single administration. These findings support the use of long-acting injectable formulations as a new approach for malaria prophylaxis in travellers and for malaria control in the field.
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Affiliation(s)
- Rahul P Bakshi
- Division of Clinical Pharmacology, Departments of Medicine and of Pharmacology and Molecular Sciences, The Johns Hopkins University, 725 North Wolfe Street, Baltimore, MD, 21205, USA
- The Johns Hopkins Malaria Research Institute, Baltimore, MD, 21205, USA
| | - Lee M Tatham
- Department of Molecular and Clinical Pharmacology, University of Liverpool, Block H, 70 Pembroke Place, Liverpool, L69 3GF, UK
| | - Alison C Savage
- Department of Chemistry, University of Liverpool, Crown Street, Liverpool, L69 7ZD, UK
| | - Abhai K Tripathi
- The Johns Hopkins Malaria Research Institute, Baltimore, MD, 21205, USA
- Department of Molecular Microbiology and Immunology, The Johns Hopkins University, Baltimore, MD, 21205, USA
| | - Godfree Mlambo
- The Johns Hopkins Malaria Research Institute, Baltimore, MD, 21205, USA
- Department of Molecular Microbiology and Immunology, The Johns Hopkins University, Baltimore, MD, 21205, USA
| | - Matthew M Ippolito
- Division of Clinical Pharmacology, Departments of Medicine and of Pharmacology and Molecular Sciences, The Johns Hopkins University, 725 North Wolfe Street, Baltimore, MD, 21205, USA
- The Johns Hopkins Malaria Research Institute, Baltimore, MD, 21205, USA
- Division of Infectious Diseases, Department of Medicine, The Johns Hopkins University, Baltimore, MD, 21205, USA
| | - Elizabeth Nenortas
- Division of Clinical Pharmacology, Departments of Medicine and of Pharmacology and Molecular Sciences, The Johns Hopkins University, 725 North Wolfe Street, Baltimore, MD, 21205, USA
- The Johns Hopkins Malaria Research Institute, Baltimore, MD, 21205, USA
| | - Steve P Rannard
- Department of Chemistry, University of Liverpool, Crown Street, Liverpool, L69 7ZD, UK.
| | - Andrew Owen
- Department of Molecular and Clinical Pharmacology, University of Liverpool, Block H, 70 Pembroke Place, Liverpool, L69 3GF, UK.
| | - Theresa A Shapiro
- Division of Clinical Pharmacology, Departments of Medicine and of Pharmacology and Molecular Sciences, The Johns Hopkins University, 725 North Wolfe Street, Baltimore, MD, 21205, USA
- The Johns Hopkins Malaria Research Institute, Baltimore, MD, 21205, USA
- Department of Molecular Microbiology and Immunology, The Johns Hopkins University, Baltimore, MD, 21205, USA
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31
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Wais U, Jackson AW, He T, Zhang H. Formation of hydrophobic drug nanoparticles via ambient solvent evaporation facilitated by branched diblock copolymers. Int J Pharm 2017; 533:245-253. [DOI: 10.1016/j.ijpharm.2017.09.067] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2017] [Revised: 09/07/2017] [Accepted: 09/26/2017] [Indexed: 01/06/2023]
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32
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Donnellan S, Stone V, Johnston H, Giardiello M, Owen A, Rannard S, Aljayyoussi G, Swift B, Tran L, Watkins C, Stevenson K. Intracellular delivery of nano-formulated antituberculosis drugs enhances bactericidal activity. ACTA ACUST UNITED AC 2017. [DOI: 10.1002/jin2.27] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Samantha Donnellan
- Moredun Research Institute; Pentlands Science Park; Bush Loan Penicuik EH26 0PZ UK
- School of Engineering and Physical Sciences, Institute of Biological Chemistry, Biophysics and Bioengineering; Heriot-Watt University; Riccarton Edinburgh EH14 4AS UK
- Research Centre for Drugs and Diagnostics; Liverpool School of Tropical Medicine; Liverpool L3 5QA UK
| | - Vicki Stone
- School of Engineering and Physical Sciences, Institute of Biological Chemistry, Biophysics and Bioengineering; Heriot-Watt University; Riccarton Edinburgh EH14 4AS UK
| | - Helinor Johnston
- School of Engineering and Physical Sciences, Institute of Biological Chemistry, Biophysics and Bioengineering; Heriot-Watt University; Riccarton Edinburgh EH14 4AS UK
| | - Marco Giardiello
- Department of Chemistry; University of Liverpool; Crown Street Liverpool L69 3BX UK
| | - Andrew Owen
- Department of Chemistry; University of Liverpool; Crown Street Liverpool L69 3BX UK
| | - Steve Rannard
- Department of Chemistry; University of Liverpool; Crown Street Liverpool L69 3BX UK
| | - Ghaith Aljayyoussi
- Research Centre for Drugs and Diagnostics; Liverpool School of Tropical Medicine; Liverpool L3 5QA UK
| | - Benjamin Swift
- School of Veterinary Medicine and Science; University of Nottingham; Loughborough LE12 5RD UK
| | - Lang Tran
- Institute of Occupational Medicine; Research Avenue North; Riccarton Edinburgh EH14 4AP UK
| | - Craig Watkins
- Moredun Research Institute; Pentlands Science Park; Bush Loan Penicuik EH26 0PZ UK
| | - Karen Stevenson
- Moredun Research Institute; Pentlands Science Park; Bush Loan Penicuik EH26 0PZ UK
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33
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Liptrott NJ, Giardiello M, McDonald TO, Rannard SP, Owen A. Lack of interaction of lopinavir solid drug nanoparticles with cells of the immune system. Nanomedicine (Lond) 2017; 12:2043-2054. [PMID: 28805110 DOI: 10.2217/nnm-2017-0095] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
AIM We previously demonstrated that solid drug nanoparticles (SDNs) lopinavir (LPV) dispersed into aqueous media display favorable pharmacokinetics. METHODS The impact of LPV SDNs on the function and phenotype of primary human T cells and macrophages (primary sites of HIV replication) was investigated. RESULTS LPV significantly increased IL-1β (ninefold higher than untreated cells; p = 0.045) and TNF-α (sixfold higher than untreated cells; p = 0.018) secretion from monocyte-derived macrophages, whereas LPV SDNs did not elicit these responses at comparable drug concentrations. LPV SDNs were demonstrated to be immunologically inert to human T cells and monocyte-derived macrophages. CONCLUSION The LPV SDN was demonstrated to exhibit comparable, or favorable behavior compared with an LPV aqueous solution in the employed biocompatibility assessments.
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Affiliation(s)
- Neill J Liptrott
- Department of Molecular & Clinical Pharmacology, Institute of Translational Medicine, the University of Liverpool, Liverpool, UK.,European Nanomedicine Characterisation Laboratory, Institute of Translational Medicine, the University of Liverpool, Liverpool, UK
| | - Marco Giardiello
- Department of Chemistry, the University of Liverpool, Liverpool, UK
| | - Tom O McDonald
- Department of Chemistry, the University of Liverpool, Liverpool, UK
| | - Steven P Rannard
- European Nanomedicine Characterisation Laboratory, Institute of Translational Medicine, the University of Liverpool, Liverpool, UK.,Department of Chemistry, the University of Liverpool, Liverpool, UK
| | - Andrew Owen
- Department of Molecular & Clinical Pharmacology, Institute of Translational Medicine, the University of Liverpool, Liverpool, UK.,European Nanomedicine Characterisation Laboratory, Institute of Translational Medicine, the University of Liverpool, Liverpool, UK
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34
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Hill EK, Li J. Current and future prospects for nanotechnology in animal production. J Anim Sci Biotechnol 2017; 8:26. [PMID: 28316783 PMCID: PMC5351054 DOI: 10.1186/s40104-017-0157-5] [Citation(s) in RCA: 69] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2016] [Accepted: 03/02/2017] [Indexed: 11/10/2022] Open
Abstract
Nanoparticles have been used as diagnostic and therapeutic agents in the human medical field for quite some time, though their application in veterinary medicine and animal production is still relatively new. Recently, production demands on the livestock industry have been centered around the use of antibiotics as growth promoters due to growing concern over microbial antibiotic resistance. With many countries reporting increased incidences of antibiotic-resistant bacteria, laws and regulations are being updated to end in-feed antibiotic use in the animal production industry. This sets the need for suitable alternatives to be established for inclusion in feed. Many reports have shown evidence that nanoparticles may be good candidates for animal growth promotion and antimicrobials. The current status and advancements of nanotechnological applications in animal production will be the focus of this review and the emerging roles of nanoparticles for nutrient delivery, biocidal agents, and tools in veterinary medicine and reproduction will be discussed. Additionally, influences on meat, egg, and milk quality will be reviewed.
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Affiliation(s)
- Emily K Hill
- School of Life Science and Engineering, Foshan University, Foshan, Guangdong China.,Department of Animal Biosciences, University of Guelph, 50 Stone Road East, Building #70, Guelph, ON N1G 2 W1 Canada
| | - Julang Li
- School of Life Science and Engineering, Foshan University, Foshan, Guangdong China.,Department of Animal Biosciences, University of Guelph, 50 Stone Road East, Building #70, Guelph, ON N1G 2 W1 Canada
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35
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Schill J, Milroy LG, Lugger JAM, Schenning APHJ, Brunsveld L. Relationship between Side-Chain Polarity and the Self-Assembly Characteristics of Perylene Diimide Derivatives in Aqueous Solution. ChemistryOpen 2017; 6:266-272. [PMID: 28413763 PMCID: PMC5390792 DOI: 10.1002/open.201600133] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2016] [Revised: 01/03/2017] [Indexed: 11/09/2022] Open
Abstract
Perylene-3,4,9,10-tetracarboxylic acid diimides (PDIs) have recently gained considerable interest for water-based biosensing applications. PDIs have been studied intensively in the bulk state, but their physical properties in aqueous solution in interplay with side-chain polarity are, however, poorly understood. Therefore, three perylene diimide based derivatives were synthesized to study the relationship between side-chain polarity and their self-assembly characteristics in water. The polarity of the side chains was found to dictate the size and morphology of the formed aggregates. Side-chain polarity rendered the self-assembly and photophysical properties of the PDIs-both important for imminent water-based applications-and these were revealed to be especially responsive to changes in solvent composition.
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Affiliation(s)
- Jurgen Schill
- Laboratory of Chemical Biology Department of Biomedical Engineering and Institute of Complex Molecular Systems Eindhoven University of Technology P.O. Box 513 5600 MB Eindhoven The Netherlands
| | - Lech-Gustav Milroy
- Laboratory of Chemical Biology Department of Biomedical Engineering and Institute of Complex Molecular Systems Eindhoven University of Technology P.O. Box 513 5600 MB Eindhoven The Netherlands
| | - Jody A M Lugger
- Macromolecular and Organic Chemistry and Institute of Complex Molecular Systems Eindhoven University of Technology P.O. Box 513 5600 MB Eindhoven The Netherlands
| | - Albertus P H J Schenning
- Functional Organic Materials and Devices and Institute of Complex Molecular Systems Eindhoven University of Technology P.O. Box 513 5600 MB Eindhoven The Netherlands
| | - Luc Brunsveld
- Laboratory of Chemical Biology Department of Biomedical Engineering and Institute of Complex Molecular Systems Eindhoven University of Technology P.O. Box 513 5600 MB Eindhoven The Netherlands
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36
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Zhang Z, Ji J. Large-scale preparation of stable irbesartan nanoparticles by high-gravity liquid antisolvent precipitation technique. POWDER TECHNOL 2017. [DOI: 10.1016/j.powtec.2016.10.043] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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37
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Yu M, Yao J, Liang J, Zeng Z, Cui B, Zhao X, Sun C, Wang Y, Liu G, Cui H. Development of functionalized abamectin poly(lactic acid) nanoparticles with regulatable adhesion to enhance foliar retention. RSC Adv 2017. [DOI: 10.1039/c6ra27345a] [Citation(s) in RCA: 73] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Functionalized abamectin poly(lactic acid) nanoparticles with different adhesion abilities to crop foliage can regulate folia retention of abamectin.
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Affiliation(s)
- Manli Yu
- Institute of Environment and Sustainable Development in Agriculture
- Chinese Academy of Agricultural Sciences
- Beijing
- PR China
| | - Junwei Yao
- Institute of Environment and Sustainable Development in Agriculture
- Chinese Academy of Agricultural Sciences
- Beijing
- PR China
| | - Jie Liang
- Institute of Environment and Sustainable Development in Agriculture
- Chinese Academy of Agricultural Sciences
- Beijing
- PR China
| | - Zhanghua Zeng
- Institute of Environment and Sustainable Development in Agriculture
- Chinese Academy of Agricultural Sciences
- Beijing
- PR China
| | - Bo Cui
- Institute of Environment and Sustainable Development in Agriculture
- Chinese Academy of Agricultural Sciences
- Beijing
- PR China
| | - Xiang Zhao
- Institute of Environment and Sustainable Development in Agriculture
- Chinese Academy of Agricultural Sciences
- Beijing
- PR China
| | - Changjiao Sun
- Institute of Environment and Sustainable Development in Agriculture
- Chinese Academy of Agricultural Sciences
- Beijing
- PR China
| | - Yan Wang
- Institute of Environment and Sustainable Development in Agriculture
- Chinese Academy of Agricultural Sciences
- Beijing
- PR China
| | - Guoqiang Liu
- Institute of Environment and Sustainable Development in Agriculture
- Chinese Academy of Agricultural Sciences
- Beijing
- PR China
| | - Haixin Cui
- Institute of Environment and Sustainable Development in Agriculture
- Chinese Academy of Agricultural Sciences
- Beijing
- PR China
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38
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Murakami Y, Shimoyama Y. Supercritical extraction of emulsion in microfluidic slug-flow for production of nanoparticle suspension in aqueous solution. J Supercrit Fluids 2016. [DOI: 10.1016/j.supflu.2016.08.009] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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39
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Giardiello M, Liptrott NJ, McDonald TO, Moss D, Siccardi M, Martin P, Smith D, Gurjar R, Rannard SP, Owen A. Accelerated oral nanomedicine discovery from miniaturized screening to clinical production exemplified by paediatric HIV nanotherapies. Nat Commun 2016; 7:13184. [PMID: 27767027 PMCID: PMC5078733 DOI: 10.1038/ncomms13184] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2016] [Accepted: 09/08/2016] [Indexed: 12/13/2022] Open
Abstract
Considerable scope exists to vary the physical and chemical properties of nanoparticles, with subsequent impact on biological interactions; however, no accelerated process to access large nanoparticle material space is currently available, hampering the development of new nanomedicines. In particular, no clinically available nanotherapies exist for HIV populations and conventional paediatric HIV medicines are poorly available; one current paediatric formulation utilizes high ethanol concentrations to solubilize lopinavir, a poorly soluble antiretroviral. Here we apply accelerated nanomedicine discovery to generate a potential aqueous paediatric HIV nanotherapy, with clinical translation and regulatory approval for human evaluation. Our rapid small-scale screening approach yields large libraries of solid drug nanoparticles (160 individual components) targeting oral dose. Screening uses 1 mg of drug compound per library member and iterative pharmacological and chemical evaluation establishes potential candidates for progression through to clinical manufacture. The wide applicability of our strategy has implications for multiple therapy development programmes.
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Affiliation(s)
- Marco Giardiello
- Department of Chemistry, University of Liverpool, Crown Street, Liverpool L69 7ZD, UK
| | - Neill J. Liptrott
- Department of Molecular and Clinical Pharmacology, University of Liverpool, Block H, 70 Pembroke Place, Liverpool L69 3GF, UK
| | - Tom O. McDonald
- Department of Chemistry, University of Liverpool, Crown Street, Liverpool L69 7ZD, UK
| | - Darren Moss
- Department of Molecular and Clinical Pharmacology, University of Liverpool, Block H, 70 Pembroke Place, Liverpool L69 3GF, UK
| | - Marco Siccardi
- Department of Molecular and Clinical Pharmacology, University of Liverpool, Block H, 70 Pembroke Place, Liverpool L69 3GF, UK
| | - Phil Martin
- Department of Molecular and Clinical Pharmacology, University of Liverpool, Block H, 70 Pembroke Place, Liverpool L69 3GF, UK
| | - Darren Smith
- Department of Molecular and Clinical Pharmacology, University of Liverpool, Block H, 70 Pembroke Place, Liverpool L69 3GF, UK
| | - Rohan Gurjar
- Department of Molecular and Clinical Pharmacology, University of Liverpool, Block H, 70 Pembroke Place, Liverpool L69 3GF, UK
| | - Steve P. Rannard
- Department of Chemistry, University of Liverpool, Crown Street, Liverpool L69 7ZD, UK
| | - Andrew Owen
- Department of Molecular and Clinical Pharmacology, University of Liverpool, Block H, 70 Pembroke Place, Liverpool L69 3GF, UK
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40
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Siccardi M, Martin P, Smith D, Curley P, McDonald T, Giardiello M, Liptrott N, Rannard S, Owen A. Towards a rational design of solid drug nanoparticles with optimised pharmacological properties. ACTA ACUST UNITED AC 2016; 1:110-123. [PMID: 27774308 PMCID: PMC5054800 DOI: 10.1002/jin2.21] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2016] [Revised: 08/02/2016] [Accepted: 08/30/2016] [Indexed: 12/23/2022]
Abstract
Solid drug nanoparticles (SDNs) are a nanotechnology with favourable characteristics to enhance drug delivery and improve the treatment of several diseases, showing benefit for improved oral bioavailability and injectable long‐acting medicines. The physicochemical properties and composition of nanoformulations can influence the absorption, distribution, and elimination of nanoparticles; consequently, the development of nanoparticles for drug delivery should consider the potential role of nanoparticle characteristics in the definition of pharmacokinetics. The aim of this study was to investigate the pharmacological behaviour of efavirenz SDNs and the identification of optimal nanoparticle properties and composition. Seventy‐seven efavirenz SDNs were included in the analysis. Cellular accumulation was evaluated in HepG2 (hepatic) and Caco‐2 (intestinal), CEM (lymphocyte), THP1 (monocyte), and A‐THP1 (macrophage) cell lines. Apparent intestinal permeability (Papp) was measured using a monolayer of Caco‐2 cells. The Papp values were used to evaluate the potential benefit on pharmacokinetics using a physiologically based pharmacokinetic model. The generated SDNs had an enhanced intestinal permeability and accumulation in different cell lines compared to the traditional formulation of efavirenz. Nanoparticle size and excipient choice influenced efavirenz apparent permeability and cellular accumulation, and this appeared to be cell line dependent. These findings represent a valuable platform for the design of SDNs, giving an empirical background for the selection of optimal nanoparticle characteristics and composition. Understanding how nanoparticle components and physicochemical properties influence pharmacological patterns will enable the rational design of SDNs with desirable pharmacokinetics.
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Affiliation(s)
- Marco Siccardi
- Department of Molecular and Clinical Pharmacology, Institute of Translational Medicine University of Liverpool Liverpool L693GF UK
| | - Phillip Martin
- Department of Molecular and Clinical Pharmacology, Institute of Translational Medicine University of Liverpool Liverpool L693GF UK
| | - Darren Smith
- Department of Molecular and Clinical Pharmacology, Institute of Translational Medicine University of Liverpool Liverpool L693GF UK
| | - Paul Curley
- Department of Molecular and Clinical Pharmacology, Institute of Translational Medicine University of Liverpool Liverpool L693GF UK
| | - Tom McDonald
- Department of Chemistry, Crown Street University of Liverpool Liverpool L69 3BX UK
| | - Marco Giardiello
- Department of Chemistry, Crown Street University of Liverpool Liverpool L69 3BX UK
| | - Neill Liptrott
- Department of Molecular and Clinical Pharmacology, Institute of Translational Medicine University of Liverpool Liverpool L693GF UK
| | - Steve Rannard
- Department of Chemistry, Crown Street University of Liverpool Liverpool L69 3BX UK
| | - Andrew Owen
- Department of Molecular and Clinical Pharmacology, Institute of Translational Medicine University of Liverpool Liverpool L693GF UK
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Choi I, Shin Y, Song J, Hong S, Park Y, Kim D, Kang T, Lee LP. Spontaneous Self-Formation of 3D Plasmonic Optical Structures. ACS NANO 2016; 10:7639-7645. [PMID: 27348191 DOI: 10.1021/acsnano.6b02903] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Self-formation of colloidal oil droplets in water or water droplets in oil not only has been regarded as fascinating fundamental science but also has been utilized in an enormous number of applications in everyday life. However, the creation of three-dimensional (3D) architectures by a liquid droplet and an immiscible liquid interface has been less investigated than other applications. Here, we report interfacial energy-driven spontaneous self-formation of a 3D plasmonic optical structure at room temperature without an external force. Based on the densities and interfacial energies of two liquids, we simulated the spontaneous formation of a plasmonic optical structure when a water droplet containing metal ions meets an immiscible liquid polydimethylsiloxane (PDMS) interface. At the interface, the metal ions in the droplet are automatically reduced to form an interfacial plasmonic layer as the liquid PDMS cures. The self-formation of both an optical cavity and integrated plasmonic nanostructure significantly enhances the fluorescence by a magnitude of 1000. Our findings will have a huge impact on the development of various photonic and plasmonic materials as well as metamaterials and devices.
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Affiliation(s)
- Inhee Choi
- Department of Life Science, University of Seoul , Seoul 130-743, Republic of Korea
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42
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Nanoformulation strategies for the enhanced oral bioavailability of antiretroviral therapeutics. Ther Deliv 2016; 6:469-90. [PMID: 25996045 DOI: 10.4155/tde.15.4] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
The oral delivery of drugs with poor aqueous solubility is challenging and often results in poor bioavailability. Various nanoformulation platforms have demonstrated improved oral bioavailability of a range of drugs for different indications. The focus of this review is to provide an overview of the application of nanomedicine to oral antiretroviral therapy and outline how the current short-falls of this life-long therapy may be resolved using nanotechnology. As well as highlighting the rationale for a nanomedicine-based approach, the review focuses on the various strategies used to enhance oral bioavailability and describes the mechanisms of particle absorption across the GI tract. The recent advances in the development of long-acting formulations for both HIV treatment and pre-exposure prophylaxis are also discussed.
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Owen A, Rannard S. Strengths, weaknesses, opportunities and challenges for long acting injectable therapies: Insights for applications in HIV therapy. Adv Drug Deliv Rev 2016; 103:144-156. [PMID: 26916628 PMCID: PMC4935562 DOI: 10.1016/j.addr.2016.02.003] [Citation(s) in RCA: 100] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2016] [Revised: 02/10/2016] [Accepted: 02/12/2016] [Indexed: 12/11/2022]
Abstract
Advances in solid drug nanoparticle technologies have resulted in a number of long-acting (LA) formulations with the potential for once monthly or longer administration. Such formulations offer great utility for chronic diseases, particularly when a lack of medication compliance may be detrimental to treatment response. Two such formulations are in clinical development for HIV but the concept of LA delivery has its origins in indications such as schizophrenia and contraception. Many terms have been utilised to describe the LA approach and standardisation would be beneficial. Ultimately, definitions will depend upon specific indications and routes of delivery, but for HIV we propose benchmarks that reflect perceived clinical benefits and available data on patient attitudes. Specifically, we propose dosing intervals of ≥1week, ≥1month or ≥6months, for oral, injectable or implantable strategies, respectively. This review focuses upon the critical importance of potency in achieving the LA outcome for injectable formulations and explores established and emerging technologies that have been employed across indications. Key technological challenges such as the need for consistency and ease of administration for drug combinations, are also discussed. Finally, the review explores the gaps in knowledge regarding the pharmacology of drug release from particulate-based LA injectable suspensions. A number of hypotheses are discussed based upon available data relating to local drug metabolism, active transport systems, the lymphatics, macrophages and patient-specific factors. Greater knowledge of the mechanisms that underpin drug release and protracted exposure will help facilitate further development of this strategy to achieve the promising clinical benefits.
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Affiliation(s)
- Andrew Owen
- Department of Molecular and Clinical Pharmacology, Institute of Translational Medicine, 70 Pembroke Place, University of Liverpool, Liverpool L693GF, UK
| | - Steve Rannard
- Department of Chemistry, Crown Street, University of Liverpool, L69 3BX, UK
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44
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Rudramurthy GR, Swamy MK, Sinniah UR, Ghasemzadeh A. Nanoparticles: Alternatives Against Drug-Resistant Pathogenic Microbes. Molecules 2016; 21:E836. [PMID: 27355939 PMCID: PMC6273897 DOI: 10.3390/molecules21070836] [Citation(s) in RCA: 255] [Impact Index Per Article: 31.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2016] [Revised: 06/17/2016] [Accepted: 06/20/2016] [Indexed: 01/17/2023] Open
Abstract
Antimicrobial substances may be synthetic, semisynthetic, or of natural origin (i.e., from plants and animals). Antimicrobials are considered "miracle drugs" and can determine if an infected patient/animal recovers or dies. However, the misuse of antimicrobials has led to the development of multi-drug-resistant bacteria, which is one of the greatest challenges for healthcare practitioners and is a significant global threat. The major concern with the development of antimicrobial resistance is the spread of resistant organisms. The replacement of conventional antimicrobials by new technology to counteract antimicrobial resistance is ongoing. Nanotechnology-driven innovations provide hope for patients and practitioners in overcoming the problem of drug resistance. Nanomaterials have tremendous potential in both the medical and veterinary fields. Several nanostructures comprising metallic particles have been developed to counteract microbial pathogens. The effectiveness of nanoparticles (NPs) depends on the interaction between the microorganism and the NPs. The development of effective nanomaterials requires in-depth knowledge of the physicochemical properties of NPs and the biological aspects of microorganisms. However, the risks associated with using NPs in healthcare need to be addressed. The present review highlights the antimicrobial effects of various nanomaterials and their potential advantages, drawbacks, or side effects. In addition, this comprehensive information may be useful in the discovery of broad-spectrum antimicrobial drugs for use against multi-drug-resistant microbial pathogens in the near future.
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Affiliation(s)
| | - Mallappa Kumara Swamy
- Department of Crop Science, Faculty of Agriculture, Universiti Putra Malaysia, Serdang, Selangor, Darul Ehsan 43400, Malaysia.
| | - Uma Rani Sinniah
- Department of Crop Science, Faculty of Agriculture, Universiti Putra Malaysia, Serdang, Selangor, Darul Ehsan 43400, Malaysia.
| | - Ali Ghasemzadeh
- Department of Crop Science, Faculty of Agriculture, Universiti Putra Malaysia, Serdang, Selangor, Darul Ehsan 43400, Malaysia.
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45
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Zhang Y, Song W, Geng J, Chitgupi U, Unsal H, Federizon J, Rzayev J, Sukumaran DK, Alexandridis P, Lovell JF. Therapeutic surfactant-stripped frozen micelles. Nat Commun 2016; 7:11649. [PMID: 27193558 PMCID: PMC4874033 DOI: 10.1038/ncomms11649] [Citation(s) in RCA: 57] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2015] [Accepted: 04/18/2016] [Indexed: 01/22/2023] Open
Abstract
Injectable hydrophobic drugs are typically dissolved in surfactants and non-aqueous solvents which can induce negative side-effects. Alternatives like ‘top-down' fine milling of excipient-free injectable drug suspensions are not yet clinically viable and ‘bottom-up' self-assembled delivery systems usually substitute one solubilizing excipient for another, bringing new issues to consider. Here, we show that Pluronic (Poloxamer) block copolymers are amenable to low-temperature processing to strip away all free and loosely bound surfactant, leaving behind concentrated, kinetically frozen drug micelles containing minimal solubilizing excipient. This approach was validated for phylloquinone, cyclosporine, testosterone undecanoate, cabazitaxel and seven other bioactive molecules, achieving sizes between 45 and 160 nm and drug to solubilizer molar ratios 2–3 orders of magnitude higher than current formulations. Hypertonic saline or co-loaded cargo was found to prevent aggregation in some cases. Use of surfactant-stripped micelles avoided potential risks associated with other injectable formulations. Mechanistic insights are elucidated and therapeutic dose responses are demonstrated. The excipients used to solubilise hydrophobic drugs sometimes interfere with drug behaviour or induce adverse side effects once injected. Here, the authors use a low-temperature process to obtain surfactant-stripped micelles with high drug concentration for delivery of a wide range of hydrophobic cargoes.
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Affiliation(s)
- Yumiao Zhang
- Department of Biomedical Engineering, University at Buffalo, State University of New York, Buffalo, New York 14260, USA.,Department of Chemical and Biological Engineering, University at Buffalo, State University of New York, Buffalo, New York 14260, USA
| | - Wentao Song
- Department of Biomedical Engineering, University at Buffalo, State University of New York, Buffalo, New York 14260, USA
| | - Jumin Geng
- Department of Biomedical Engineering, University at Buffalo, State University of New York, Buffalo, New York 14260, USA
| | - Upendra Chitgupi
- Department of Biomedical Engineering, University at Buffalo, State University of New York, Buffalo, New York 14260, USA
| | - Hande Unsal
- Department of Chemistry; University at Buffalo, State University of New York, Buffalo, New York 14260, USA
| | - Jasmin Federizon
- Department of Chemistry; University at Buffalo, State University of New York, Buffalo, New York 14260, USA
| | - Javid Rzayev
- Department of Chemistry; University at Buffalo, State University of New York, Buffalo, New York 14260, USA
| | - Dinesh K Sukumaran
- Department of Chemistry; University at Buffalo, State University of New York, Buffalo, New York 14260, USA
| | - Paschalis Alexandridis
- Department of Chemical and Biological Engineering, University at Buffalo, State University of New York, Buffalo, New York 14260, USA
| | - Jonathan F Lovell
- Department of Biomedical Engineering, University at Buffalo, State University of New York, Buffalo, New York 14260, USA.,Department of Chemical and Biological Engineering, University at Buffalo, State University of New York, Buffalo, New York 14260, USA
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46
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Liu Y, Busscher HJ, Zhao B, Li Y, Zhang Z, van der Mei HC, Ren Y, Shi L. Surface-Adaptive, Antimicrobially Loaded, Micellar Nanocarriers with Enhanced Penetration and Killing Efficiency in Staphylococcal Biofilms. ACS NANO 2016; 10:4779-89. [PMID: 26998731 DOI: 10.1021/acsnano.6b01370] [Citation(s) in RCA: 257] [Impact Index Per Article: 32.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Biofilms cause persistent bacterial infections and are extremely recalcitrant to antimicrobials, due in part to reduced penetration of antimicrobials into biofilms that allows bacteria residing in the depth of a biofilm to survive antimicrobial treatment. Here, we describe the preparation of surface-adaptive, Triclosan-loaded micellar nanocarriers showing (1) enhanced biofilm penetration and accumulation, (2) electrostatic targeting at acidic pH toward negatively charged bacterial cell surfaces in a biofilm, and (3) antimicrobial release due to degradation of the micelle core by bacterial lipases. First, it was established that mixed-shell-polymeric-micelles (MSPM) consisting of a hydrophilic poly(ethylene glycol) (PEG)-shell and pH-responsive poly(β-amino ester) become positively charged at pH 5.0, while being negatively charged at physiological pH. This is opposite to single-shell-polymeric-micelles (SSPM) possessing only a PEG-shell and remaining negatively charged at pH 5.0. The stealth properties of the PEG-shell combined with its surface-adaptive charge allow MSPMs to penetrate and accumulate in staphylococcal biofilms, as demonstrated for fluorescent Nile red loaded micelles using confocal-laser-scanning-microscopy. SSPMs, not adapting a positive charge at pH 5.0, could not be demonstrated to penetrate and accumulate in a biofilm. Once micellar nanocarriers are bound to a staphylococcal cell surface, bacterial enzymes degrade the MSPM core to release its antimicrobial content and kill bacteria over the depth of a biofilm. This constitutes a highly effective pathway to control blood-accessible staphylococcal biofilms using antimicrobials, bypassing biofilm recalcitrance to antimicrobial penetration.
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Affiliation(s)
- Yong Liu
- State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Functional Polymer Materials, Ministry of Education, Institute of Polymer Chemistry, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Nankai University , Tianjin 300071, China
| | - Henk J Busscher
- University of Groningen and University Medical Center Groningen , Department of Biomedical Engineering, Antonius Deusinglaan 1, 9713 AV Groningen, The Netherlands
| | - Bingran Zhao
- University of Groningen and University Medical Center of Groningen , Department of Orthodontics, Hanzeplein 1, 9700 RB Groningen, The Netherlands
| | - Yuanfeng Li
- State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Functional Polymer Materials, Ministry of Education, Institute of Polymer Chemistry, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Nankai University , Tianjin 300071, China
| | - Zhenkun Zhang
- State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Functional Polymer Materials, Ministry of Education, Institute of Polymer Chemistry, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Nankai University , Tianjin 300071, China
| | - Henny C van der Mei
- University of Groningen and University Medical Center Groningen , Department of Biomedical Engineering, Antonius Deusinglaan 1, 9713 AV Groningen, The Netherlands
| | - Yijin Ren
- University of Groningen and University Medical Center of Groningen , Department of Orthodontics, Hanzeplein 1, 9700 RB Groningen, The Netherlands
| | - Linqi Shi
- State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Functional Polymer Materials, Ministry of Education, Institute of Polymer Chemistry, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Nankai University , Tianjin 300071, China
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47
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Lang C, Zhang X, Dong Z, Luo Q, Qiao S, Huang Z, Fan X, Xu J, Liu J. Selenium-containing organic nanoparticles as silent precursors for ultra-sensitive thiol-responsive transmembrane anion transport. NANOSCALE 2016; 8:2960-2966. [PMID: 26783054 DOI: 10.1039/c5nr07808c] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
An anion transporter with a selenoxide group was able to form nanoparticles in water, whose activity was fully turned off due to the aggregation effect. The formed nanoparticles have a uniform size and can be readily dispersed in water at high concentrations. Turn-on of the nanoparticles by reducing molecules is proposed to be a combined process, including the reduction of selenoxide to selenide, disassembly of the nanoparticles and location of the transporter to the lipid membrane. Accordingly, a special acceleration phase can be observed in the turn-on kinetic curves. Since turn-on of the nanoparticles is quantitatively related to the amount of reductant, the nanoparticles can be activated in a step-by-step manner. Due to the sensibility of this system to thiols, cysteine can be detected at low nanomolar concentrations. This ultra-sensitive thiol-responsive transmembrane anion transport system is quite promising in biological applications.
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Affiliation(s)
- Chao Lang
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130012, P. R. China.
| | - Xin Zhang
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130012, P. R. China.
| | - Zeyuan Dong
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130012, P. R. China.
| | - Quan Luo
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130012, P. R. China.
| | - Shanpeng Qiao
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130012, P. R. China.
| | - Zupeng Huang
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130012, P. R. China.
| | - Xiaotong Fan
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130012, P. R. China.
| | - Jiayun Xu
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130012, P. R. China.
| | - Junqiu Liu
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130012, P. R. China.
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48
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Wais U, Jackson AW, He T, Zhang H. Nanoformulation and encapsulation approaches for poorly water-soluble drug nanoparticles. NANOSCALE 2016; 8:1746-1769. [PMID: 26731460 DOI: 10.1039/c5nr07161e] [Citation(s) in RCA: 82] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
During the last few decades the nanomedicine sector has emerged as a feasible and effective solution to the problems faced by the high percentage of poorly water-soluble drugs. Decreasing the size of such drug compounds to the nanoscale can significantly change their physical properties, which lays the foundation for the use of nanomedicine for pharmaceutical applications. Various techniques have been developed to produce poorly water-soluble drug nanoparticles, mainly to address the poor water-soluble issues but also for the efficient and targeted delivery of such drugs. These techniques can be generally categorized into top-down, bottom-up and encapsulation approaches. Among them, the top-down approaches have been the main choice for industrial preparation of drug nanoparticles while other methods are actively investigated by researchers. In this review, we aim to give a comprehensive overview and latest progress of the top-down, bottom-up, and encapsulation methods for the preparation of poorly water-soluble drug nanoparticles and how solvents and additives can be selected for these methods. In addition to the more industrially applied top-down approaches, the review is focused more on bottom-up and encapsulation methods, particularly covering supercritical fluid-related methods, cryogenic techniques, and encapsulation with dendrimers and responsive block copolymers. Some of the approved and mostly used nanodrug formulations on the market are also covered to demonstrate the applications of poorly water-soluble drug nanoparticles. This review is complete with perspectives on the development and challenges of fabrication techniques for more effective nanomedicine.
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Affiliation(s)
- Ulrike Wais
- Department of Chemistry, University of Liverpool, Liverpool, L69 7ZD, UK. and Institute of Chemical and Engineering Science, 1 Pesek Road, Jurong Island, 627833, Singapore
| | - Alexander W Jackson
- Institute of Chemical and Engineering Science, 1 Pesek Road, Jurong Island, 627833, Singapore
| | - Tao He
- School of Chemistry and Chemical Engineering, Hefei University of Technology, Hefei, China.
| | - Haifei Zhang
- Department of Chemistry, University of Liverpool, Liverpool, L69 7ZD, UK.
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49
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Wais U, Jackson AW, Zuo Y, Xiang Y, He T, Zhang H. Drug nanoparticles by emulsion-freeze-drying via the employment of branched block copolymer nanoparticles. J Control Release 2016; 222:141-50. [DOI: 10.1016/j.jconrel.2015.12.022] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2015] [Revised: 12/08/2015] [Accepted: 12/13/2015] [Indexed: 01/03/2023]
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50
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Sun H, Yin B, Ma H, Yuan H, Fu B, Liu L. Synthesis of a Novel Quinoline Skeleton Introduced Cationic Polyfluorene Derivative for Multimodal Antimicrobial Application. ACS APPLIED MATERIALS & INTERFACES 2015; 7:25390-25395. [PMID: 26492936 DOI: 10.1021/acsami.5b07890] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
A new functional polyfluorene derivative containing quinoline skeleton and quarternary ammonium group (QAG) modified side chains (PFPQ) was synthesized and characterized. The multimodal antimicrobial effect toward Gram-negative E. coli was achieved by the dark toxicity resulting from the quinoline skeleton, QAG, and light toxicity resulting from reactive oxygen species (ROS) produced by the main backbone of PFPQ under white light. The mechanism of interaction between PFPQ and bacteria was also demonstrated. PFPQ bound to E. coli mainly through electrostatic interactions causing nearly 50% bacterial death in the absence of light irradiation, and the huge capability of PFPQ to generate ROS under white light opened another bactericidal mode. The killing efficiency was more than 99% upon relatively mild irradiation under white light (400-800 nm) with a light dose of 18 J·cm(-2). PFPQ with the incorporation of quinoline into the backbones will provide a new versatile strategy to achieve the multimodal antimicrobial effect to fight against resistant bacteria.
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Affiliation(s)
- Han Sun
- Department of Applied Chemistry, China Agricultural University , Beijing, 100193, P. R. China
| | - Bohan Yin
- Department of Applied Chemistry, China Agricultural University , Beijing, 100193, P. R. China
| | - Hongli Ma
- Department of Applied Chemistry, China Agricultural University , Beijing, 100193, P. R. China
| | - Huanxiang Yuan
- Beijing National Laboratory for Molecular Science, Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences , Beijing, 100190, P. R. China
| | - Bin Fu
- Department of Applied Chemistry, China Agricultural University , Beijing, 100193, P. R. China
| | - Libing Liu
- Beijing National Laboratory for Molecular Science, Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences , Beijing, 100190, P. R. China
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