1
|
Kekani LN, Witika BA. Current advances in nanodrug delivery systems for malaria prevention and treatment. DISCOVER NANO 2023; 18:66. [PMID: 37382765 PMCID: PMC10409709 DOI: 10.1186/s11671-023-03849-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/10/2023] [Accepted: 04/13/2023] [Indexed: 06/30/2023]
Abstract
Malaria is a life-threatening, blood-borne disease with over two hundred million cases throughout the world and is more prevalent in Sub-Saharan Africa than anywhere else in the world. Over the years, several treatment agents have been developed for malaria; however, most of these active pharmaceutical ingredients exhibit poor aqueous solubility and low bioavailability and may result in drug-resistant parasites, thus increasing malaria cases and eventually, deaths. Factors such as these in therapeutics have led to a better appreciation of nanomaterials. The ability of nanomaterials to function as drug carriers with a high loading capacity and targeted drug delivery, good biocompatibility, and low toxicity renders them an appealing alternative to conventional therapy. Nanomaterials such as dendrimers and liposomes have been demonstrated to be capable of enhancing the efficacy of antimalarial drugs. This review discusses the recent development of nanomaterials and their benefits in drug delivery for the potential treatment of malaria.
Collapse
Affiliation(s)
- Linda N Kekani
- Department of Pharmaceutical Sciences, School of Pharmacy, Sefako Makgatho Health Sciences University, Pretoria, 0208, South Africa
| | - Bwalya A Witika
- Department of Pharmaceutical Sciences, School of Pharmacy, Sefako Makgatho Health Sciences University, Pretoria, 0208, South Africa.
| |
Collapse
|
2
|
Zheng W, Zhang H, Wang J, Wang J, Yan L, Liu C, Zheng L. Pickering emulsion hydrogel based on alginate-gellan gum with carboxymethyl chitosan as a pH-responsive controlled release delivery system. Int J Biol Macromol 2022; 216:850-859. [PMID: 35914551 DOI: 10.1016/j.ijbiomac.2022.07.223] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2022] [Revised: 07/23/2022] [Accepted: 07/27/2022] [Indexed: 11/05/2022]
Abstract
Pickering emulsion hydrogels (PEHs) were developed as a pH-responsive, controlled-release delivery system to address the limitations of Pickering emulsions in some harsh processing or gastrointestinal conditions. Specifically, the PEHs were fabricated based on alginate and various concentrations of gellan gum (GG) with carboxymethyl chitosan (CMCS) matrix. The encapsulation efficiency (EE), Fourier transform infrared spectroscopy (FTIR) and X-ray diffraction (XRD) results proved the successful encapsulation. Furthermore, the hydrogels remained stable in the presence of destabilizing ions (Na+ or phosphate ions) and high osmotic pressure mediums. The texture profile analysis (TPA) characteristics and Young's modulus of the 0.8 % GG (w/v) PEHs were superior to the others. The PEHs prevented the emulsions from being released at pH 2.0, while the emulsions were entirely released at pH 7.4 in vitro, with the rate of release controlled by CMCS and the degree by GG concentration. This work facilitates the delivery of Pickering emulsions with excellent stability and pH-responsive controlled release for hydrophobic actives in food applications.
Collapse
Affiliation(s)
- Wenxiu Zheng
- School of Food and Biological Engineering, Hefei University of Technology, Hefei 230009, China
| | - Huizhe Zhang
- School of Food and Biological Engineering, Hefei University of Technology, Hefei 230009, China
| | - Ju Wang
- School of Food and Biological Engineering, Hefei University of Technology, Hefei 230009, China
| | - Jinjin Wang
- School of Food and Biological Engineering, Hefei University of Technology, Hefei 230009, China
| | - Ling Yan
- School of Food and Biological Engineering, Hefei University of Technology, Hefei 230009, China
| | - Changhong Liu
- School of Food and Biological Engineering, Hefei University of Technology, Hefei 230009, China; Engineering Research Center of Bio-Process, Ministry of Education, Hefei University of Technology, Hefei 230009, China.
| | - Lei Zheng
- School of Food and Biological Engineering, Hefei University of Technology, Hefei 230009, China; Engineering Research Center of Bio-Process, Ministry of Education, Hefei University of Technology, Hefei 230009, China.
| |
Collapse
|
3
|
Contini C, Hindley JW, Macdonald TJ, Barritt JD, Ces O, Quirke N. Size dependency of gold nanoparticles interacting with model membranes. Commun Chem 2020; 3:130. [PMID: 33829115 PMCID: PMC7610534 DOI: 10.1038/s42004-020-00377-y] [Citation(s) in RCA: 56] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023] Open
Abstract
The rapid development of nanotechnology has led to an increase in the number and variety of engineered nanomaterials in the environment. Gold nanoparticles (AuNPs) are an example of a commonly studied nanomaterial whose highly tailorable properties have generated significant interest through a wide range of research fields. In the present work, we characterise the AuNP-lipid membrane interaction by coupling qualitative data with quantitative measurements of the enthalpy change of interaction. We investigate the interactions between citrate-stabilised AuNPs ranging from 5 to 60 nm in diameter and large unilamellar vesicles acting as a model membrane system. Our results reveal the existence of two critical AuNP diameters which determine their fate when in contact with a lipid membrane. The results provide new insights into the size dependent interaction between AuNPs and lipid bilayers which is of direct relevance to nanotoxicology and to the design of NP vectors.
Collapse
Affiliation(s)
- Claudia Contini
- grid.7445.20000 0001 2113 8111Department of Chemistry, Molecular Sciences Research Hub, Imperial College London, White City Campus, Wood Lane, W12 0BZ London, UK
| | - James W. Hindley
- grid.7445.20000 0001 2113 8111Department of Chemistry, Molecular Sciences Research Hub, Imperial College London, White City Campus, Wood Lane, W12 0BZ London, UK ,grid.7445.20000 0001 2113 8111Institute of Chemical Biology, Molecular Sciences Research Hub, Imperial College London, White City Campus, Wood Lane, W12 0BZ London, UK
| | - Thomas J. Macdonald
- grid.7445.20000 0001 2113 8111Department of Chemistry, Molecular Sciences Research Hub, Imperial College London, White City Campus, Wood Lane, W12 0BZ London, UK ,grid.83440.3b0000000121901201Department of Chemistry, University College London, Gordon Street, WC1H 0AJ London, UK
| | - Joseph D. Barritt
- grid.7445.20000 0001 2113 8111Department of Life Sciences, Imperial College London, South Kensington Campus, SW7 2AZ London, UK
| | - Oscar Ces
- grid.7445.20000 0001 2113 8111Department of Chemistry, Molecular Sciences Research Hub, Imperial College London, White City Campus, Wood Lane, W12 0BZ London, UK ,grid.7445.20000 0001 2113 8111Institute of Chemical Biology, Molecular Sciences Research Hub, Imperial College London, White City Campus, Wood Lane, W12 0BZ London, UK
| | - Nick Quirke
- grid.7445.20000 0001 2113 8111Department of Chemistry, Molecular Sciences Research Hub, Imperial College London, White City Campus, Wood Lane, W12 0BZ London, UK
| |
Collapse
|
4
|
Ayano E, Kanazawa H. Temperature-responsive smart packing materials utilizing multi-functional polymers. ANAL SCI 2014; 30:167-73. [PMID: 24420259 DOI: 10.2116/analsci.30.167] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Polymers that respond to small changes in environmental stimuli with large, sometimes discontinuous changes in their physical state or properties, are often called "smart" polymers. Poly(N-isopropylacrylamide), PNIPAAm, is one of the most representative smart polymer that exhibits a thermally reversible soluble-insoluble change in the vicinity of its lower critical solution temperature (LCST) at 32°C in aqueous solution. Temperature-responsive chromatography for the separation of biomolecules utilizing the poly(N-isopropylacrylamide) (PNIPAAm)-modified stationary phase is performed with an aqueous mobile phase without using an organic solvent. The surface properties and function of the stationary phase are controlled by external temperature changes without changing the mobile-phase composition. The separation of the biomolecules, such as nucleotides, was achieved by a dual temperature- and pH-responsive chromatography system. The electrostatic and hydrophobic interactions could be modulated simultaneously with the temperature in an aqueous mobile phase. Additionally, we also prepared functional copolymers composed of N-isopropylacrylamide (NIPAAm) and amino acid derivative or naphthyl alanine derivative, which have temperature-responsiveness and molecular recognition. These separation systems would have potential applications in the separation of biomolecules.
Collapse
Affiliation(s)
- Eri Ayano
- Faculty of Pharmacy, Keio University
| | | |
Collapse
|
5
|
SHIIGI H, NAGAOKA T. Molecularly Bridged Gold Nanoparticle Array for Sensing Applications. ANAL SCI 2014; 30:89-96. [DOI: 10.2116/analsci.30.89] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Affiliation(s)
- Hiroshi SHIIGI
- Department of Applied Chemistry, Graduate School of Engineering, Osaka Prefecture University
| | - Tsutomu NAGAOKA
- Department of Applied Chemistry, Graduate School of Engineering, Osaka Prefecture University
| |
Collapse
|