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Jha CB, Singh C, Randhawa JK, Kaul A, Varshney R, Singh S, Kaushik A, Manna K, Mathur R. Synthesis and evaluation of curcumin reduced and capped gold nanoparticles as a green diagnostic probe with therapeutic potential. Colloids Surf B Biointerfaces 2024; 241:114050. [PMID: 38936032 DOI: 10.1016/j.colsurfb.2024.114050] [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: 04/25/2024] [Revised: 06/04/2024] [Accepted: 06/18/2024] [Indexed: 06/29/2024]
Abstract
Curcumin, a compound in turmeric, shows promise for its anti-cancer properties. In this study, we successfully synthesised curcumin-reduced and capped gold nanoparticles. Most evaluations have been limited to in-vitro studies for these nanoparticles; our study takes a step further by highlighting the in-vivo assessment of these curcumin-reduced and capped gold nanoparticles (GNPCs) using non-invasive imaging (SPECT and optical) and possible therapeutic potential. The GNPCs showed an average hydrodynamic diameter of 58 nm and a PDI of 0.336. The synthesised and fully characterised GNPCs showed ex-vivo hemolysis value of ≤ 1.74 % and serum stability of ≥ 95 % over 24 h. Using in-vivo non-invasive (SPECT and optical Imaging), prolonged circulation and enhanced bioavailability of GNPCs were seen. The biodistribution studies after radiolabelling GNPCs with 99 mTc complemented the optical imaging. The SPECT images showed higher uptake of the GNPCs at the tumour site, viz the contralateral muscle and the native Curcumin, resulting in a high target-to-non-target ratio that differentiated the tumour sufficiently and enhanced the diagnostics. Other organs also accumulate radiolabeled GNPCs in systemic circulation; bio dosimetry is performed. It was found that the dose received by the different organs was safe for use, and the in-vivo toxicity studies in rats indicated negligible toxicity over 30 days. The tumour growth was also reduced in mice models treated with GNPCs compared to the control. These significant findings demonstrate that GNPC shows synergistic activity in vivo, indicating its ability as a green diagnostic probe that has the potential for therapy.
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Affiliation(s)
- Chandan Bhogendra Jha
- Division of Radiological, Nuclear and Imaging Sciences, Institute of Nuclear Medicine and Allied Sciences, DRDO, Delhi 110054, India; Department of Chemistry, Indian Institute of Technology Delhi, New Delhi 110016, India
| | - Chitrangda Singh
- Division of Radiological, Nuclear and Imaging Sciences, Institute of Nuclear Medicine and Allied Sciences, DRDO, Delhi 110054, India
| | | | - Ankur Kaul
- Division of Radiological, Nuclear and Imaging Sciences, Institute of Nuclear Medicine and Allied Sciences, DRDO, Delhi 110054, India
| | - Raunak Varshney
- Division of Radiological, Nuclear and Imaging Sciences, Institute of Nuclear Medicine and Allied Sciences, DRDO, Delhi 110054, India
| | - Sweta Singh
- Division of Radiological, Nuclear and Imaging Sciences, Institute of Nuclear Medicine and Allied Sciences, DRDO, Delhi 110054, India
| | - Aruna Kaushik
- Division of Radiological, Nuclear and Imaging Sciences, Institute of Nuclear Medicine and Allied Sciences, DRDO, Delhi 110054, India
| | - Kuntal Manna
- Department of Chemistry, Indian Institute of Technology Delhi, New Delhi 110016, India
| | - Rashi Mathur
- Division of Radiological, Nuclear and Imaging Sciences, Institute of Nuclear Medicine and Allied Sciences, DRDO, Delhi 110054, India.
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Pal S, Chatterjee N, Das AK, McClements DJ, Dhar P. Sophorolipids: A comprehensive review on properties and applications. Adv Colloid Interface Sci 2023; 313:102856. [PMID: 36827914 DOI: 10.1016/j.cis.2023.102856] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2022] [Revised: 01/27/2023] [Accepted: 02/04/2023] [Indexed: 02/11/2023]
Abstract
Sophorolipids are surface-active glycolipids produced by several non-pathogenic yeast species and are widely used as biosurfactants in several industrial applications. Sophorolipids provide a plethora of benefits over chemically synthesized surfactants for certain applications like bioremediation, oil recovery, and pharmaceuticals. They are, for instance less toxic, more benign and environment friendly in nature, biodegradable, freely adsorb to different surfaces, self-assembly in hydrated solutions, robustness for industrial applications etc. These miraculous properties result in valuable physicochemical attributes such as low critical micelle concentrations (CMCs), reduced interfacial surface tension, and capacity to dissolve non-polar components. Moreover, they exhibit a diverse range of physicochemical, functional, and biological attributes due to their unique molecular composition and structure. In this article, we highlight the physico-chemical properties of sophorolipids, how these properties are exploited by the human community for extensive benefits and the conditions which lead to their unique tailor-made structures and how they entail their interfacial behavior. Besides, we discuss the advantages and disadvantages associated with the use of these sophorolipids. We also review their physiological and functional attributes, along with their potential commercial applications, in real-world scenario. Biosurfactants are compared to their man-made equivalents to show the variations in structure-property correlations and possible benefits. Those attempting to manufacture purported natural or green surfactant with innovative and valuable qualities can benefit from an understanding of biosurfactant features structured along the same principles. The uniqueness of this review article is the detailed physico-chemical study of the sophorolipid biosurfactant and how these properties helps in their usage and detailed explicit study of their applications in the current scenario and also covering their pros and cons.
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Affiliation(s)
- Srija Pal
- Laboratory of Food Science and Technology, Food and Nutrition Division, University of Calcutta, 20B Judges Court Road, Kolkata 700027, West Bengal, India
| | - Niloy Chatterjee
- Laboratory of Food Science and Technology, Food and Nutrition Division, University of Calcutta, 20B Judges Court Road, Kolkata 700027, West Bengal, India; Centre for Research in Nanoscience & Nanotechnology, University of Calcutta, JD 2, Sector III, Salt Lake City, Kolkata 700 098, West Bengal, India
| | - Arun K Das
- Eastern Regional Station, ICAR-IVRI, 37 Belgachia Road, Kolkata 700037, West Bengal, India
| | - David Julian McClements
- Department of Food Science, University of Massachusetts Amherst, Amherst, MA 01003, USA; Department of Food Science & Bioengineering, Zhejiang Gongshang University, 18 Xuezheng Street, Hangzhou, Zhejiang 310018, China
| | - Pubali Dhar
- Laboratory of Food Science and Technology, Food and Nutrition Division, University of Calcutta, 20B Judges Court Road, Kolkata 700027, West Bengal, India; Centre for Research in Nanoscience & Nanotechnology, University of Calcutta, JD 2, Sector III, Salt Lake City, Kolkata 700 098, West Bengal, India.
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3
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Hu M, Kalimuthu S, Zhang C, Ali IAA, Neelakantan P. Trans-cinnamaldehyde-Biosurfactant Complex as a Potent Agent against Enterococcus faecalis Biofilms. Pharmaceutics 2022; 14:2355. [PMID: 36365173 PMCID: PMC9692797 DOI: 10.3390/pharmaceutics14112355] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2022] [Revised: 10/17/2022] [Accepted: 10/30/2022] [Indexed: 01/18/2024] Open
Abstract
Enterococcus faecalis is an opportunistic microbial pathogen frequently associated with diverse infections, including those of the skin and teeth, as well as those from surgical wounds. It forms robust biofilms that are highly tolerant to most antimicrobials and first-line antibiotics. Therefore, investigating alternative strategies to eradicate its biofilms is a critical need. We recently demonstrated that trans-cinnamaldehyde (TC) potently kills E. faecalis biofilm cells and prevents biofilm recovery, and yet, the extreme hydrophobicity of TC hampers clinical translation. Here, we report that a complex of TC with an FDA-approved biosurfactant (acidic sophorolipid/ASL) significantly reduces the bacterial viability and biomass of E. faecalis biofilms, compared to TC alone. A confocal laser-scanning microscopic analysis demonstrated that the TC-ASL treatment significantly decreased the biofilm thickness and volume. In conclusion, our study highlights the anti-biofilm potential of the newly developed TC-ASL.
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Affiliation(s)
- Mingxin Hu
- Faculty of Dentistry, The University of Hong Kong, Hong Kong SAR, China
| | | | - Chengfei Zhang
- Faculty of Dentistry, The University of Hong Kong, Hong Kong SAR, China
| | - Islam A. A. Ali
- Department of Endodontics, Faculty of Dentistry, Mansoura University, Mansoura 35516, Egypt
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Mahmoudi A, Kesharwani P, Majeed M, Teng Y, Sahebkar A. Recent advances in nanogold as a promising nanocarrier for curcumin delivery. Colloids Surf B Biointerfaces 2022; 215:112481. [PMID: 35453063 DOI: 10.1016/j.colsurfb.2022.112481] [Citation(s) in RCA: 26] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2021] [Revised: 03/18/2022] [Accepted: 03/23/2022] [Indexed: 12/12/2022]
Abstract
Curcumin is a natural polyphenolic compound that has promising therapeutic benefits. However, curcumin suffers from low aqueous solubility and poor bioavailability following oral administration, which are severe constraints to its full therapeutic potential. An exciting approach to resolving such challenges has been to incorporate curcumin into gold nanoparticles (AuNPs) to improve its unfavorable physicochemical and biopharmaceutical properties. Growing evidence shows that AuNPs increase cytotoxicity and apoptotic effect of curcumin on cancer cells. Moreover, AuNPs has the potential to enhance curcumin's cellular uptake and antioxidant properties. In addition, numerous benefits have been suggested for exploiting the curcumin's gold (Au) NPs as simple preparation and functionalization. Therefore, we can take advantage of the nanogold combination with curcumin in several therapeutic methods like photothermal therapy and theranostic nanocarrier. Here, we focus on the therapeutic properties of Au/curcumin NPs and the way to improve biocompatibility and bioavailability for curcumin encapsulation, intending to enhance their anticancer and antioxidant capacities. The present review also discusses the utilization and impact of Au NPs as a drug/gene delivery system/platform and various methods for the synthesis of Au/curcumin NPs.
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Affiliation(s)
- Ali Mahmoudi
- Student Research Committee, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran; Department of Medical Biotechnology and Nanotechnology, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Prashant Kesharwani
- Department of Pharmaceutics, School of Pharmaceutical Education and Research, Jamia Hamdard, New Delhi 110062, India.
| | | | - Yong Teng
- Department of Hematology and Medical Oncology, Winship Cancer Institute, Emory University School of Medicine, Atlanta, GA 30322, USA
| | - Amirhossein Sahebkar
- Applied Biomedical Research Center, Mashhad University of Medical Sciences, Mashhad, Iran; Biotechnology Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran; School of Medicine, The University of Western Australia, Perth, Australia; Department of Biotechnology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran.
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A comprehensive review on natural occurrence, synthesis and biological activities of glycolipids. Carbohydr Res 2022; 516:108556. [DOI: 10.1016/j.carres.2022.108556] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2021] [Revised: 03/30/2022] [Accepted: 04/05/2022] [Indexed: 01/10/2023]
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Rajasekar V, Darne P, Prabhune A, Kao RYT, Solomon AP, Ramage G, Samaranayake L, Neelakantan P. A curcumin-sophorolipid nanocomplex inhibits Candida albicans filamentation and biofilm development. Colloids Surf B Biointerfaces 2021; 200:111617. [PMID: 33592455 DOI: 10.1016/j.colsurfb.2021.111617] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2020] [Revised: 01/29/2021] [Accepted: 02/03/2021] [Indexed: 12/20/2022]
Abstract
Candida albicans is an opportunistic fungal pathogen that is highly resistant to contemporary antifungals, due to their biofilm lifestyle. The ability of C. albicans to invade human tissues is due to its filamentation. Therefore, inhibition of biofilms and filamentation of the yeast are high value targets to develop the next-generation antifungals. Curcumin (CU) is a natural polyphenol with excellent pharmacological attributes, but limitations such as poor solubility, acid, and enzyme tolerance have impeded its practical utility. Sophorolipids (SL) are biologically-derived surfactants that serve as efficient carriers of hydrophobic molecules such as curcumin into biofilms. Here, we synthesised a curcumin-sophorolipid nanocomplex (CUSL), and comprehensively evaluated its effects on C. albicans biofilms and filamentation. Our results demonstrated that sub-inhibitory concentration of CUSL (9.37 μg/mL) significantly inhibited fungal adhesion to substrates, and subsequent biofilm development, maturation, and filamentation. This effect was associated with significant downregulation of a select group of biofilm, adhesins, and hyphal regulatory genes. In conclusion, the curcumin-sophorolipid nanocomplex is a potent inhibitor of the two major virulence attributes of C. albicans, biofilm formation and filamentation, thus highlighting its promise as a putative anti-fungal agent with biofilm penetrative potential.
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Affiliation(s)
- Vidhyashree Rajasekar
- Faculty of Dentistry, The University of Hong Kong, Hong Kong Special Administrative Region; Quorum Sensing Laboratory, Centre of Research in Infectious Diseases, School of Chemical and Biotechnology, SASTRA Deemed to Be University, Thanjavur, India
| | - Priti Darne
- Green Pyramid Biotech Private Limited, Pune, India
| | | | - Richard Y T Kao
- Department of Microbiology, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong Special Administrative Region
| | - Adline Princy Solomon
- Quorum Sensing Laboratory, Centre of Research in Infectious Diseases, School of Chemical and Biotechnology, SASTRA Deemed to Be University, Thanjavur, India
| | - Gordon Ramage
- Oral Sciences Research Group, Glasgow Dental School, School of Medicine, Dentistry & Nursing, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, Scotland, United Kingdom
| | - Lakshman Samaranayake
- Faculty of Dentistry, The University of Hong Kong, Hong Kong Special Administrative Region
| | - Prasanna Neelakantan
- Faculty of Dentistry, The University of Hong Kong, Hong Kong Special Administrative Region.
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7
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Singh PK, Bohr SSR, Hatzakis NS. Direct Observation of Sophorolipid Micelle Docking in Model Membranes and Cells by Single Particle Studies Reveals Optimal Fusion Conditions. Biomolecules 2020; 10:E1291. [PMID: 32906821 PMCID: PMC7564020 DOI: 10.3390/biom10091291] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2020] [Revised: 09/03/2020] [Accepted: 09/05/2020] [Indexed: 11/16/2022] Open
Abstract
Sophorolipids (SLs) are naturally produced glycolipids that acts as drug delivery for a spectrum of biomedical applications, including as an antibacterial antifungal and anticancer agent, where they induce apoptosis selectively in cancerous cells. Despite their utility, the mechanisms underlying their membrane interactions, and consequently cell entry, remains unknown. Here, we combined a single liposome assay to observe directly and quantify the kinetics of interaction of SL micelles with model membrane systems, and single particle studies on live cells to record their interaction with cell membranes and their cytotoxicity. Our single particle readouts revealed several repetitive docking events on individual liposomes and quantified how pH and membrane charges, which are known to vary in cancer cells, affect the docking of SL micelles on model membranes. Docking of sophorolipids micelles was found to be optimal at pH 6.5 and for membranes with -5% negatively charge lipids. Single particle studies on mammalian cells reveled a two-fold increased interaction on Hela cells as compared to HEK-293 cells. This is in line with our cell viability readouts recording an approximate two-fold increased cytotoxicity by SLs interactions for Hela cells as compared to HEK-293 cells. The combined in vitro and cell assays thus support the increased cytotoxicity of SLs on cancer cells to originate from optimal charge and pH interactions between membranes and SL assemblies. We anticipate studies combining quantitative single particle studies on model membranes and live cell may reveal hitherto unknown molecular insights on the interactions of sophorolipid and additional nanocarriers mechanism.
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Affiliation(s)
- Pradeep Kumar Singh
- Department of Chemistry & Nanoscience Center, University of Copenhagen, Thorvaldsensvej 40, C 1871 Frederiksberg, Denmark
- Department of Chemistry, University of Akron, Akron, OH 44325, USA
| | - Søren S-R Bohr
- Department of Chemistry & Nanoscience Center, University of Copenhagen, Thorvaldsensvej 40, C 1871 Frederiksberg, Denmark
- Novo Nordisk Center for Protein Research (CPR), University of Copenhagen, Blegdamsvej 3B, 2200 Copenhagen, Denmark
| | - Nikos S Hatzakis
- Department of Chemistry & Nanoscience Center, University of Copenhagen, Thorvaldsensvej 40, C 1871 Frederiksberg, Denmark
- Novo Nordisk Center for Protein Research (CPR), University of Copenhagen, Blegdamsvej 3B, 2200 Copenhagen, Denmark
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Ma Y, Chen S, Liao W, Zhang L, Liu J, Gao Y. Formation, Physicochemical Stability, and Redispersibility of Curcumin-Loaded Rhamnolipid Nanoparticles Using the pH-Driven Method. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2020; 68:7103-7111. [PMID: 32559379 DOI: 10.1021/acs.jafc.0c01326] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The aim of the present work was to fabricate the curcumin-loaded rhamnolipid nanoparticles using the pH-driven method to enhance the physicochemical stability and redispersibility of curcumin. The mixture of curcumin and rhamnolipid could be spontaneously assembled into the curcumin-loaded rhamnolipid nanoparticles with a small size (107 nm) and negative charge (-45.5 mV). Curcumin molecules could bind to rhamnolipid molecules through hydrophobic effects and hydrogen bonds. The effect of different mass ratios of rhamnolipid and curcumin (1:2, 1:1, 2:1, 4:1, 6:1, and 8:1) on the functional property of the curcumin-loaded rhamnolipid nanoparticles was investigated. With the rise of rhamnolipid and curcumin mass ratio, the encapsulation efficiency of curcumin in the nanoparticles was increased from 44.59% to 81.12% and the loading capacity of curcumin was elevated from 10.14% to 31.67%. When the mass ratio of rhamnolipid and curcumin was 4:1, the curcumin-loaded rhamnolipid nanoparticles exhibited better physical stability, pH stability, and redispersibility. Moreover, the nanoparticles could effectively protect curcumin against the photodegradation and thermal degradation. Therefore, the rhamnolipid nanoparticles have the potential to be applied as a nanodelivery system for bioactive molecules in functional foods.
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Affiliation(s)
- Yichao Ma
- College of Food Science & Nutritional Engineering, China Agricultural University, Beijing 100083, China
| | - Shuai Chen
- College of Food Science & Nutritional Engineering, China Agricultural University, Beijing 100083, China
| | - Wenyan Liao
- College of Food Science & Nutritional Engineering, China Agricultural University, Beijing 100083, China
| | - Liang Zhang
- College of Food Science & Nutritional Engineering, China Agricultural University, Beijing 100083, China
| | - Jinfang Liu
- College of Food Science & Nutritional Engineering, China Agricultural University, Beijing 100083, China
| | - Yanxiang Gao
- College of Food Science & Nutritional Engineering, China Agricultural University, Beijing 100083, China
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Ma X, Meng L, Zhang H, Zhou L, Yue J, Zhu H, Yao R. Sophorolipid biosynthesis and production from diverse hydrophilic and hydrophobic carbon substrates. Appl Microbiol Biotechnol 2019; 104:77-100. [DOI: 10.1007/s00253-019-10247-w] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2019] [Revised: 10/29/2019] [Accepted: 11/05/2019] [Indexed: 10/25/2022]
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Yuan Y, Li H, Liu C, Zhang S, Xu Y, Wang D. Fabrication and Characterization of Lutein-Loaded Nanoparticles Based on Zein and Sophorolipid: Enhancement of Water Solubility, Stability, and Bioaccessibility. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2019; 67:11977-11985. [PMID: 31589424 DOI: 10.1021/acs.jafc.9b05175] [Citation(s) in RCA: 69] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Lutein is a hydrophobic carotenoid with various beneficial biological activities. Its use as a functional food, however, is currently limited by its low-water solubility, chemical instability, and poor bioavailability. The purpose of this work is to fabricate lutein-loaded nanoparticles to overcome these challenges. Lutein was encapsulated in zein nanoparticles coated with sophorolipid (ZSLNPs). The properties of ZSLNPs were characterized by transmission electron microscopy and dynamic light scattering. The results showed that the ZSLNPs were spheres with particle size around 200 nm and negative surface potentials (ζ = -54 mV). The encapsulation efficiency and loading capacity of the lutein in the ZSLNPs was 90.04% and 0.82%, respectively. Infrared spectroscopy analysis indicated that the dominant driving forces of the ZSLNPs formation mainly included electrostatic, hydrophobic interactions and hydrogen bonding. X-ray analysis showed that the encapsulated lutein was in an amorphous form. Circular dichroism analysis suggested that the incorporation of lutein or sophorolipid led to the change in secondary structure of zein. In addition, the ZSLNPs had good stability, redispersibility, and increased the water solubility of lutein. Furthermore, in vitro studies showed that the ZSLNPs had great biocompatibility and bioaccessibility of lutein. Overall, these findings indicated that the core/shell nanoparticles developed in the work may be suitable for encapsulating this important nutrient in functional foods.
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Affiliation(s)
- Yongkai Yuan
- College of Food Science and Engineering , Ocean University of China , Qingdao , Shandong Province 266003 , People's Republic of China
| | - Hao Li
- College of Food Science and Engineering , Ocean University of China , Qingdao , Shandong Province 266003 , People's Republic of China
| | - Chengzhen Liu
- College of Food Science and Engineering , Ocean University of China , Qingdao , Shandong Province 266003 , People's Republic of China
| | - Shuaizhong Zhang
- College of Food Science and Engineering , Ocean University of China , Qingdao , Shandong Province 266003 , People's Republic of China
| | - Ying Xu
- College of Food Science and Engineering , Ocean University of China , Qingdao , Shandong Province 266003 , People's Republic of China
| | - Dongfeng Wang
- College of Food Science and Engineering , Ocean University of China , Qingdao , Shandong Province 266003 , People's Republic of China
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Ramalingam V. Multifunctionality of gold nanoparticles: Plausible and convincing properties. Adv Colloid Interface Sci 2019; 271:101989. [PMID: 31330396 DOI: 10.1016/j.cis.2019.101989] [Citation(s) in RCA: 57] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2019] [Revised: 06/17/2019] [Accepted: 07/09/2019] [Indexed: 12/13/2022]
Abstract
In a couple of decades, nanotechnology has become a trending area in science due to it covers all subject that combines diverse range of fields including but not limited to chemistry, physics and medicine. Various metal and metal oxide nanomaterials have been developed for wide range applications. However, the application of gold nanostructures and nanoparticles has been received more attention in various biomedical applications. The unique property of gold nanoparticles (AuNPs) is surface plasmon resonance (SPR) that determine the size, shape and stability. The wide surface area of AuNPs eases the proteins, peptides, oligonucleotides, and many other compounds to tether and enhance the biological activity of AuNPs. AuNPs have multifunctionality including antimicrobial, anticancer, drug and gene delivery, sensing applications and imaging. This state-of-the-art review is focused on the role of unique properties of AuNPs in multifunctionality and its various applications.
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Peng S, Li Z, Zou L, Liu W, Liu C, McClements DJ. Improving curcumin solubility and bioavailability by encapsulation in saponin-coated curcumin nanoparticles prepared using a simple pH-driven loading method. Food Funct 2018. [PMID: 29517797 DOI: 10.1039/c7fo01814b] [Citation(s) in RCA: 119] [Impact Index Per Article: 19.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Curcumin is a bioactive phytochemical that can be utilized as a nutraceutical or pharmaceutical in functional foods, supplements, and medicines. However, the application of curcumin as a nutraceutical in commercial food and beverage products is currently limited by its low water-solubility, chemical instability, and poor oral bioavailability. In this study, all-natural colloidal delivery systems were developed to overcome these challenges, which consisted of saponin-coated curcumin nanoparticles formed using a pH-driven loading method. The physicochemical and structural properties of the curcumin nanoparticles formed using this process were characterized, including particle size distribution, surface potential, morphology, encapsulation efficiency, and loading capacity. Fourier transform infrared spectroscopy and X-ray diffraction indicated that curcumin was present in the nanoparticles in an amorphous form. The curcumin nanoparticles were unstable to aggregation at low pH values (<3) and high NaCl concentrations (>200 mM), which was attributed to a reduction in electrostatic repulsion between them. However, they were stable at higher pH values (3 to 8) and lower NaCl levels (0 to 200 mM), due to a stronger electrostatic repulsion between them. They also exhibited good stability during refrigerated storage (4 °C) or after conversion into a powdered form (lyophilized). A simulated gastrointestinal tract study demonstrated that the in vitro bioaccessibility was around 3.3-fold higher for curcumin nanoparticles than for free curcumin. Furthermore, oral administration to Sprague Dawley rats indicated that the in vivo bioavailability was around 8.9-fold higher for curcumin nanoparticles than for free curcumin. These results have important implications for the development of curcumin-enriched functional foods, supplements, and drugs.
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Affiliation(s)
- Shengfeng Peng
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, Jiangxi, PR China.
| | - Ziling Li
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, Jiangxi, PR China. and School of Life Science, Jiangxi Science and Technology Normal University, Nanchang, 330013, Jiangxi, PR China
| | - Liqiang Zou
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, Jiangxi, PR China.
| | - Wei Liu
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, Jiangxi, PR China.
| | - Chengmei Liu
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, Jiangxi, PR China.
| | - David Julian McClements
- Biopolymers and Colloids Laboratory, Department of Food Science, University of Massachusetts, Amherst, MA 01003, USA.
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Vasudevan S, Prabhune AA. Photophysical studies on curcumin-sophorolipid nanostructures: applications in quorum quenching and imaging. ROYAL SOCIETY OPEN SCIENCE 2018; 5:170865. [PMID: 29515826 PMCID: PMC5830715 DOI: 10.1098/rsos.170865] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/08/2017] [Accepted: 01/04/2018] [Indexed: 05/02/2023]
Abstract
Sophorolipid biosurfactants are biodegradable, less toxic and FDA approved. The purified acidic form of sophorolipid is stimuli-responsive with self-assembling properties and used for solubilizing hydrophobic drugs. This study encapsulated curcumin (CU) with acidic sophorolipid (ASL) micelles and analysed using photophysical studies like UV-visible spectroscopy, photoluminescence (PL) spectroscopy and time-correlated single photon counting (TCSPC). TEM images have revealed ellipsoid micelles of approximately 100 nm size and were confirmed by dynamic light scattering. The bacterial fluorescence uptake studies showed the uptake of formed CUASL nanostructures into both Gram-positive and Gram-negative bacteria. They also showed quorum quenching activity against Pseudomonas aeruginosa. The results have demonstrated this system has potential theranostic applications.
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Affiliation(s)
| | - Asmita A. Prabhune
- Division of Biochemical Sciences, CSIR-National Chemical Laboratory, Dr. Homi-Bhabha Road, Pune 411008, India
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