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Sia CS, Tey BT, Goh BH, Low LE. Controlled assembly of superparamagnetic iron oxide nanoparticle into nanoliposome for Pickering emulsion preparation. Colloids Surf B Biointerfaces 2024; 241:114051. [PMID: 38954935 DOI: 10.1016/j.colsurfb.2024.114051] [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: 03/13/2024] [Revised: 04/22/2024] [Accepted: 06/19/2024] [Indexed: 07/04/2024]
Abstract
There has been a surge in effort in the development of various solid nanoparticles as Pickering emulsion stabilizers in the past decades. Regardless, the exploration of stabilizers that simultaneously stabilize and deliver bioactive has been limited. For this, liposomes with amphiphilic nature have been introduced as Pickering emulsion stabilizers but these nano-sized vesicles lack targeting specificity. Therefore in this study, superparamagnetic iron oxide nanoparticles (SPION) encapsulated within liposomes (MLP) were used as Pickering emulsion stabilizers to prepare pH and magnetic-responsive Pickering emulsions. A stable MLP-stabilized Pickering emulsion formulation was established by varying the MLP pH, concentration, and oil loading during the emulsification process. The primary stabilization mechanism of the emulsion under pH variation was identified to be largely associated with the MLP phosphate group deprotonation. When subjected to sequential pH adjustment to imitate the gastrointestinal digestion pH environment, a recovery in Pickering emulsion integrity was observed as the pH changes from acidic to alkaline. By incorporating SPION, the Pickering emulsion can be guided to the targeted site under the influence of a magnetic field without compromising emulsion stability. Overall, the results demonstrated the potential of MLP-stabilized Pickering emulsion as a dual pH- and magnetic-responsive drug delivery carrier with the ability to co-encapsulate hydrophobic and hydrophilic bioactive.
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Affiliation(s)
- Chin Siew Sia
- Department of Chemical Engineering, School of Engineering, Monash University Malaysia, Subang Jaya, Selangor, 47500, Malaysia; Medical Engineering and Technology (MET) Hub, School of Engineering, Monash University Malaysia, Subang Jaya, Selangor, 47500, Malaysia
| | - Beng Ti Tey
- Department of Chemical Engineering, School of Engineering, Monash University Malaysia, Subang Jaya, Selangor, 47500, Malaysia
| | - Bey-Hing Goh
- Sunway Biofunctional Molecules Discovery Centre (SBMDC), School of Medical and Life Sciences, Sunway University, Subang Jaya, Selangor, 47500, Malaysia; Faculty of Health, Australian Research Centre in Complementary and Integrative Medicine, University of Technology Sydney, Ultimo 2007, NSW, Australia; Biofunctional Molecule Exploratory Research (BMEX) Group, School of Pharmacy, Monash University Malaysia, 47500 Bandar Sunway, Selangor Darul Ehsan, Malaysia
| | - Liang Ee Low
- Department of Chemical Engineering, School of Engineering, Monash University Malaysia, Subang Jaya, Selangor, 47500, Malaysia; Medical Engineering and Technology (MET) Hub, School of Engineering, Monash University Malaysia, Subang Jaya, Selangor, 47500, Malaysia; Monash-Industry Plant Oils Research Laboratory (MIPO), Monash University Malaysia, Subang Jaya, Selangor, 47500, Malaysia.
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Almeleebia T, Akhter MH, Khalilullah H, Rahman MA, Ahmad S, Alam N, Ali MS, Khan G, Alanazi IM, Shahzad N, Alalmaie A. Co-Delivery of Naringin and Ciprofloxacin by Oleic Acid Lipid Core Encapsulated in Carboxymethyl Chitosan/Alginate Nanoparticle Composite for Enhanced Antimicrobial Activity. ACS OMEGA 2024; 9:6845-6860. [PMID: 38371782 PMCID: PMC10870392 DOI: 10.1021/acsomega.3c08200] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/18/2023] [Revised: 01/04/2024] [Accepted: 01/10/2024] [Indexed: 02/20/2024]
Abstract
A novel combination of antibiotic, ciprofloxacin (CIP) with herbal counterpart naringin (NAR) was encapsulated by an oleic acid lipid core and carboxymethyl chitosan (CM-CS)/Alginate (AG) nanoparticle composite (CIP + NAR-CM-CS/AG-NPs) for improved antimicrobial efficacy of antibiotic. Herein, this study explored the design and preparation of a composite system that enables to deliver both CIP and NAR from the oleic acid lipid core of CM-CS/AG nanoparticles using a nonsolvent ionic gelation technique. The nanoparticles (NPs) were fabricated with improved long-acting antimicrobial activity against E. coli and S. aureus. The optimized composition was investigated for physicochemical properties particle size, particle distribution, and ζ-potential. A diverse array of analytical tools was employed to characterize the optimized formulation including DSC, XRD, Malvern Zetasizer for particle size, ζ-potential, TEM, and SEM. Further, the preparation was investigated for % drug release, flux determination, antioxidant, and antimicrobial activity. The formulation stability was tested for 90 days and also evaluated formulation stability in fetal bovine serum to inspect the modification in physicochemical characteristics. NPs size was determined at 85 nm, PDI, and ζ-potential was recorded at 0.318, and 0.7 ± 0.4 mV. The % CIP and NAR entrapment efficiency and % loading were incurred as 91 ± 1.9, and 89.5 ± 1.2; 11.5 ± 0.6, and 10.8 ± 0.5%, respectively. The drug release erupted in the beginning phase followed by sustained and prolonged release for 48 h. The analytical experiments by DSC ensured the noninteracting and safe use of excipients in combination. X-ray studies demonstrated the amorphous state of the drug in the formulation. The insignificant alteration of formulation characteristics in FBS suggested stable and robust preparation. Storage stability of the developed formulation ensured consistent and uniform stability for three months. The DPPH assays demonstrated that NAR had good antioxidant capacity and supported improving antimicrobial activity of CIP. The hemolytic test suggested the developed formulation was compatible and caused insignificant RBC destruction. The in-house built formulation CIP + NAR-CM-CS/AG-NPs significantly improved the antimicrobial activity compared to CIP alone, offering a novel choice in antimicrobial application.
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Affiliation(s)
- Tahani
M. Almeleebia
- Department
of Clinical Pharmacy, College of Pharmacy, King Khalid University, Abha 61421, Saudi Arabia
| | | | - Habibullah Khalilullah
- Department
of Pharmaceutical Chemistry and Pharmacognosy, Unaizah College of
Pharmacy, Qassim University, Unaizah 51911, Saudi Arabia
| | - Mohammad Akhlaquer Rahman
- Department
of Pharmaceutics and Industrial Pharmacy, College of Pharmacy, Taif University, Taif 21974, Saudi Arabia
| | - Sarfaraz Ahmad
- Department
of Clinical Pharmacy, College of Pharmacy, Jazan University, Jazan 114, Saudi Arabia
| | - Nawazish Alam
- Department
of Clinical Pharmacy, College of Pharmacy, Jazan University, Jazan 114, Saudi Arabia
| | - Md Sajid Ali
- Department
of Pharmaceutics, College of Pharmacy, Jazan
University, Jazan 45142, Saudi Arabia
| | - Gyas Khan
- Department
of Pharmacology, College of Pharmacy, Jazan
University, Jazan 45142, Saudi Arabia
| | - Ibrahim Mufadhi
M. Alanazi
- Department
of Pharmacology and Toxicology, Faculty of Medicine, Umm Al-Qura University, Makkah 21421, Saudi Arabia
| | - Naiyer Shahzad
- Department
of Pharmacology and Toxicology, Faculty of Medicine, Umm Al-Qura University, Makkah 21421, Saudi Arabia
| | - Amnah Alalmaie
- Department
of Pharmaceutics, College of Pharmacy, King
Khalid University, P.O. Box 62529, Abha61421, Saudi Arabia
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3
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Le KT, Nguyen CT, Lac TD, Nguyen LGT, Tran TL, Tran-Van H. Facilely preparing carboxymethyl chitosan/hydroxyethyl cellulose hydrogel films for protective and sustained release of fibroblast growth factor 2 to accelerate dermal tissue repair. J Drug Deliv Sci Technol 2023. [DOI: 10.1016/j.jddst.2023.104318] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/05/2023]
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Heidarpour M, Kiani M, Anaraki-Ardakani H, Rezaei P, Ghaleh SP, Ahmadi R, Maleki M. New magnetic nanocomposite Fe 3O 4@Saponin/Cu(II) as an effective recyclable catalyst for the synthesis of aminoalkylnaphthols via Betti reaction. Steroids 2023; 191:109170. [PMID: 36587779 DOI: 10.1016/j.steroids.2022.109170] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/04/2022] [Revised: 12/19/2022] [Accepted: 12/23/2022] [Indexed: 12/31/2022]
Abstract
In this research, a new magnetic nanocomposite Fe3O4@Saponin/Cu(II) based on quillaja saponin was prepared and the catalyst structure was characterized thoroughly using FT-IR, EDS, TGA, XRD, VSM, HR-TEM, SEM, ICP, BET analyzes. The catalyst prepared in the three-component synthesis of several Betti bases, 1-(α-aminoalkyl)naphthols, under environmentally friendly conditions was used. The advantage of this reaction is the high efficiency of the products and the short reaction time. Furthermore, Fe3O4@Saponin/Cu(II) nano-catalyst is recoverable magnetically and is reusable for other processes with no reduction in its activity.
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Affiliation(s)
- Majid Heidarpour
- Department of Chemistry, Ahvaz Branch, Islamic Azad University, Ahvaz, Iran.
| | - Marziyeh Kiani
- Department of Chemistry, Ahvaz Branch, Islamic Azad University, Ahvaz, Iran
| | | | - Parizad Rezaei
- Department of Chemical Engineering, Abadan Branch, Islamic Azad University, Abadan, Iran
| | - Saeed Parvizi Ghaleh
- Faculty of Petroleum and Natural Gas Engineering, Sahand University of Technology, Tabriz, Iran
| | - Reza Ahmadi
- Department of Environmental Engineering, West Tehran Branch, Islamic Azad University, Tehran, Iran
| | - Mohammad Maleki
- Department of Chemistry, Ahvaz Branch, Islamic Azad University, Ahvaz, Iran
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Fan D, Liu X, Ren Y, Bai S, Li Y, Luo Z, Dong J, Chen F, Zeng W. Functional insights to the development of bioactive material for combating bacterial infections. Front Bioeng Biotechnol 2023; 11:1186637. [PMID: 37152653 PMCID: PMC10160456 DOI: 10.3389/fbioe.2023.1186637] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2023] [Accepted: 04/13/2023] [Indexed: 05/09/2023] Open
Abstract
The emergence of antibiotic-resistant "superbugs" poses a serious threat to human health. Nanomaterials and cationic polymers have shown unprecedented advantages as effective antimicrobial therapies due to their flexibility and ability to interact with biological macromolecules. They can incorporate a variety of antimicrobial substances, achieving multifunctional effects without easily developing drug resistance. Herein, this article discusses recent advances in cationic polymers and nano-antibacterial materials, including material options, fabrication techniques, structural characteristics, and activity performance, with a focus on their fundamental active elements.
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Affiliation(s)
- Duoyang Fan
- Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, China
- Hunan Key Laboratory of Diagnostic and Therapeutic Drug Research for Chronic Diseases, Changsha, China
| | - Xiaohui Liu
- Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, China
- Hunan Key Laboratory of Diagnostic and Therapeutic Drug Research for Chronic Diseases, Changsha, China
| | - Yueming Ren
- Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, China
- Hunan Key Laboratory of Diagnostic and Therapeutic Drug Research for Chronic Diseases, Changsha, China
| | - Shuaige Bai
- Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, China
- Hunan Key Laboratory of Diagnostic and Therapeutic Drug Research for Chronic Diseases, Changsha, China
| | - Yanbing Li
- Xiangya Hospital, Central South University, Changsha, China
| | - Ziheng Luo
- Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, China
- Hunan Key Laboratory of Diagnostic and Therapeutic Drug Research for Chronic Diseases, Changsha, China
| | - Jie Dong
- Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, China
- Hunan Key Laboratory of Diagnostic and Therapeutic Drug Research for Chronic Diseases, Changsha, China
| | - Fei Chen
- Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, China
- Hunan Key Laboratory of Diagnostic and Therapeutic Drug Research for Chronic Diseases, Changsha, China
- *Correspondence: Fei Chen, ; Wenbin Zeng,
| | - Wenbin Zeng
- Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, China
- Hunan Key Laboratory of Diagnostic and Therapeutic Drug Research for Chronic Diseases, Changsha, China
- *Correspondence: Fei Chen, ; Wenbin Zeng,
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Yu N, Li Y, Wang Y, Xu H, Ye F, Fu Q. Healing effect of carboxymethyl chitosan-plantamajoside hydrogel on burn wound skin. Burns 2022; 48:902-914. [PMID: 35153110 DOI: 10.1016/j.burns.2022.01.019] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2020] [Revised: 01/19/2022] [Accepted: 01/21/2022] [Indexed: 12/15/2022]
Abstract
BACKGROUND It is known that hydrogels based on carboxymethyl chitosan (CMCS) have properties controling microbial growth, reducing inflammatory cell infiltration, and promoting collagen deposition. Plantamajoside (PMS), a natural Chinese herbal medicine with biological activity, has the properties of reducing inflammation, anti-oxidation, and promoting wound healing. However, the effects of carboxymethyl chitosan/plantamajoside hydrogel on partial thickness burn wounds remain unclear. METHODS The healing effect of carboxymethyl chitosan/plantamajoside hydrogel was evaluated by in vitro cell viability assay, cell migration assay, and further evaluated in a rat model of partial-thickness burn wounds. RESULTS The hydrogels were highly porous with a pore size of about 250 μm, and these pores were interconnected. After adding plantamajoside, a dense microstructure was further formed. The hydrogels containing 0.25% plantamajoside significantly increased the viability and migration of L929 cells (P < 0.05). Carboxymethyl chitosan/plantamajoside hydrogel significantly improved wound healing, granulation tissue proliferation and re-epithelialization, and promoted collagen deposition (P < 0.05). Carboxymethyl chitosan/plantamajoside hydrogel also significantly decreased IL (interleukin)-1β, IL-6 and TNF-α expression, and increased IL-10 expression (P < 0.05). Furthermore, carboxymethyl chitosan/plantamajoside hydrogel significantly promoted the expression levels of VEGF, CD31, α-SMA (α-smooth muscle actin) and collagen III, and reduced the expression level of collagen Ⅰ (P < 0.05). Our data suggest that carboxymethyl chitosan/plantamajoside hydrogel promotes burn wound healing by accelerating angiogenesis and collagen deposition and reducing the inflammatory response.
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Affiliation(s)
- Ning Yu
- Department of Orthopedics, Shengjing Hospital of China Medical University, No. 36 Sanhao Road, Heping District, Shenyang l10004, China; Department of Hand Surgery, Central Hospital Affiliated to Shenyang Medical College, Tiexi, 110024, China
| | - Yunpeng Li
- Department of Rehabilitation, The 10th People's Hospital of Shenyang, Dadong District, Shenyang 110044, China
| | - Yansheng Wang
- Department of Hand Surgery, Central Hospital Affiliated to Shenyang Medical College, Tiexi, 110024, China
| | - Hui Xu
- Department of Hand Surgery, Central Hospital Affiliated to Shenyang Medical College, Tiexi, 110024, China
| | - Fang Ye
- Department of Hand Surgery, Central Hospital Affiliated to Shenyang Medical College, Tiexi, 110024, China
| | - Qin Fu
- Department of Orthopedics, Shengjing Hospital of China Medical University, No. 36 Sanhao Road, Heping District, Shenyang l10004, China.
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Asghar S, Khan IU, Salman S, Khalid SH, Ashfaq R, Vandamme TF. Plant-derived nanotherapeutic systems to counter the overgrowing threat of resistant microbes and biofilms. Adv Drug Deliv Rev 2021; 179:114019. [PMID: 34699940 DOI: 10.1016/j.addr.2021.114019] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2021] [Revised: 09/03/2021] [Accepted: 10/19/2021] [Indexed: 12/17/2022]
Abstract
Since antiquity, the survival of human civilization has always been threatened by the microbial infections. An alarming surge in the resistant microbial strains against the conventional drugs is quite evident in the preceding years. Furthermore, failure of currently available regimens of antibiotics has been highlighted by the emerging threat of biofilms in the community and hospital settings. Biofilms are complex dynamic composites rich in extracellular polysaccharides and DNA, supporting plethora of symbiotic microbial life forms, that can grow on both living and non-living surfaces. These enforced structures are impervious to the drugs and lead to spread of recurrent and non-treatable infections. There is a strong realization among the scientists and healthcare providers to work out alternative strategies to combat the issue of drug resistance and biofilms. Plants are a traditional but rich source of effective antimicrobials with wider spectrum due to presence of multiple constituents in perfect synergy. Other than the biocompatibility and the safety profile, these phytochemicals have been repeatedly proven to overcome the non-responsiveness of resistant microbes and films via multiple pathways such as blocking the efflux pumps, better penetration across the cell membranes or biofilms, and anti-adhesive properties. However, the unfavorable physicochemical attributes and stability issues of these phytochemicals have hampered their commercialization. These issues of the phytochemicals can be solved by designing suitably constructed nanoscaled structures. Nanosized systems can not only improve the physicochemical features of the encapsulated payloads but can also enhance their pharmacokinetic and therapeutic profile. This review encompasses why and how various types of phytochemicals and their nanosized preparations counter the microbial resistance and the biofouling. We believe that phytochemical in tandem with nanotechnological innovations can be employed to defeat the microbial resistance and biofilms. This review will help in better understanding of the challenges associated with developing such platforms and their future prospects.
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Nwabuife JC, Pant AM, Govender T. Liposomal delivery systems and their applications against Staphylococcus aureus and Methicillin-resistant Staphylococcus aureus. Adv Drug Deliv Rev 2021; 178:113861. [PMID: 34242712 DOI: 10.1016/j.addr.2021.113861] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2021] [Revised: 06/29/2021] [Accepted: 07/01/2021] [Indexed: 12/16/2022]
Abstract
Liposomal delivery systems have been widely explored for targeting superbugs such as S. aureus and MRSA, overcoming antimicrobial resistance associated with conventional dosage forms. They have the significant advantage of delivering hydrophilic and lipophilic antimicrobial agents, either singularly as monotherapy or in combination as combination therapy, due to their bilayers with action-site-specificity, resulting in improved targeting compared to conventional dosage forms. Herein, we present an extensive and critical review of the different liposomal delivery systems employed in the past two decades for the delivery of both antibiotics of different classes and non-antibiotic antibacterial agents, as monotherapy and combination therapy to eradicate infections caused by S. aureus and MRSA. The review also identifies future research and strategies potentiating the applications of liposomal delivery systems against S. aureus and MRSA. This review confirms the potential application of liposomal delivery systems for effective delivery and specific targeting of S. aureus and MRSA infections.
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Pei X, Xiao X, Liao J, Ke L, Li D, Tang S. Identification of Plant Soot as Novel Safe Feed Additive: Evaluation of 90-Day Oral Toxicity and Prenatal Developmental Toxicity in Rats. Front Vet Sci 2020; 7:610627. [PMID: 33426030 PMCID: PMC7793944 DOI: 10.3389/fvets.2020.610627] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2020] [Accepted: 11/06/2020] [Indexed: 11/24/2022] Open
Abstract
Plant soot, as a novel feed additive, could not only improve digestive function but also adsorb mycotoxins and inhibit bacterial infections. The subchronic toxicity and prenatal developmental effects of plant soot were studied for the first time. Our results indicated that there was no subchronic toxicity in the range of 2,000-50,000 mg/kg plant soot added in the feed, and there was no significant difference in reproductive function, embryo development, and teratogenicity between the pregnant rats exposed to 312.5, 1,250, and 5,000 mg/kg plant soot and the control group. The maximum no-observed effect level (NOEL) of supplemental dosage in feed could be set to 50,000 mg/kg, and the maximum intragastric NOEL could be set to 5,000 mg/kg, which preliminarily provided guidance on daily additive amount or clinical protocols for plant soot, as well as promoting the development and application of this harmless antibiotic substitutes.
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Affiliation(s)
- Xingyao Pei
- Department of Pharmacology and Toxicology, College of Veterinary Medicine, Agricultural University, Beijing, China
| | - Xilong Xiao
- Department of Pharmacology and Toxicology, College of Veterinary Medicine, Agricultural University, Beijing, China
| | - Jianling Liao
- Fujian Shunchang Tanwawa Biological Technology Co., LTD, Shunchang, China
- Fujian Plant Soot Biotechnology Co., LTD, Shunchang, China
| | - Linfu Ke
- Fujian Shunchang Tanwawa Biological Technology Co., LTD, Shunchang, China
- Fujian Plant Soot Biotechnology Co., LTD, Shunchang, China
| | - Daowen Li
- Tianjin Key Laboratory of Agricultural Animal Breeding and Healthy Husbandry, College of Animal Science and Veterinary Medicine, Tianjin Agricultural University, Tianjin, China
| | - Shusheng Tang
- Department of Pharmacology and Toxicology, College of Veterinary Medicine, Agricultural University, Beijing, China
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Heidari F, Akbarzadeh I, Nourouzian D, Mirzaie A, Bakhshandeh H. Optimization and characterization of tannic acid loaded niosomes for enhanced antibacterial and anti-biofilm activities. ADV POWDER TECHNOL 2020. [DOI: 10.1016/j.apt.2020.11.008] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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11
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Recent advances in Camellia oleifera Abel: A review of nutritional constituents, biofunctional properties, and potential industrial applications. J Funct Foods 2020. [DOI: 10.1016/j.jff.2020.104242] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
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Zhang J, Tang X, Huang C, Liu Z, Ye Y. Oleic Acid Copolymer as A Novel Upconversion Nanomaterial to Make Doxorubicin-Loaded Nanomicelles with Dual Responsiveness to pH and NIR. Pharmaceutics 2020; 12:pharmaceutics12070680. [PMID: 32698309 PMCID: PMC7408047 DOI: 10.3390/pharmaceutics12070680] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Revised: 07/16/2020] [Accepted: 07/17/2020] [Indexed: 12/29/2022] Open
Abstract
Oleic acid (OA) as main component of plant oil is an important solvent but seldom used in the nanocarrier of anticancer drugs because of strong hydrophobicity and little drug release. In order to develop a new type of OA nanomaterial with dual responses to pH and near infrared light (NIR) to achieve the intelligent delivery of anticancer drugs. The novel OA copolymer (mPEG-PEI-(NBS, OA)) was synthesized by grafting OA and o-nitrobenzyl succinate (NBS) onto mPEGylated polyethyleneimine (mPEG-PEI) by amidation reaction. It was further conjugated with NaYF4:Yb3+/Er3+ nanoparticles, and encapsulated doxorubicin (DOX) through self-assembly to make upconversion nanomicelles with dual response to pH and NIR. Drug release behavior of DOX, physicochemical characteristics of the nanomicelles were evaluated, along with its cytotoxic profile, as well as the degree of cellular uptake in A549 cells. The encapsulation efficiency and drug loading capacity of DOX in the nanomicelles were 73.84% ± 0.58% and 4.62% ± 0.28%, respectively, and the encapsulated DOX was quickly released in an acidic environment exposed to irradiation at 980 nm. The blank nanomicelles exhibited low cytotoxicity and excellent biocompatibility by MTT assay against A549 cells. The DOX-loaded nanomicelles showed remarkable cytotoxicity to A549 cells under NIR, and promoted the cellular uptake of DOX into the cytoplasm and nucleus of cancer cells. OA copolymer can effectively deliver DOX to cancer cells and achieve tumor targeting through a dual response to pH and NIR.
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Affiliation(s)
| | | | | | | | - Yong Ye
- Correspondence: ; Tel.: +86-20-87110234
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