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Wang F, Ma R, Zhu J, Zhan J, Li J, Tian Y. Physicochemical properties, in vitro digestibility, and pH-dependent release behavior of starch-steviol glycoside composite hydrogels. Food Chem 2024; 434:137420. [PMID: 37696154 DOI: 10.1016/j.foodchem.2023.137420] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Revised: 07/29/2023] [Accepted: 09/04/2023] [Indexed: 09/13/2023]
Abstract
Steviol glycosides possess Bola-form amphiphilic structure, which can solubilize hydrophobic phytochemicals and exert physical modification to the hydrophilic matrix. However, the effect of steviol glycosides on the starch hydrogel is still unclear. Herein, the physicochemical properties, in vitro digestibility, and release behavior of starch hydrogel in the presence of steviol glycosides were investigated. The results showed that the addition of steviol glycosides promoted the gelatinization and gelation of starch, and endowed the starch hydrogel with softer texture, larger volume, and higher water holding capacity. The hydrophobic curcumin was well integrated into hydrogel by steviol glycosides, providing the gel with improved colour brilliance. The introduction of steviol glycosides hardly affected the digestibility of starch gel, but it promoted the release rate of curcumin. Notably, this release behavior was pH dependent, which tended to target the alkaline intestine. This work provided some theoretical supports for the development of sugar-free starchy foods.
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Affiliation(s)
- Fan Wang
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi 214122, PR China; Department of Biomedical Engineering, National University of Singapore, 15 Kent Ridge Crescent, Singapore 119276, Singapore; School of Food Science and Technology, Jiangnan University, Wuxi 214122, PR China
| | - Rongrong Ma
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi 214122, PR China; School of Food Science and Technology, Jiangnan University, Wuxi 214122, PR China
| | - Jingling Zhu
- Department of Biomedical Engineering, National University of Singapore, 15 Kent Ridge Crescent, Singapore 119276, Singapore; NUS Environmental Research Institute (NERI), National University of Singapore, 5 A Engineering Drive 1, Singapore 117411, Singapore
| | - Jinling Zhan
- National Engineering Research Center of Cereal Fermentation and Food Biomanufacturing, Jiangnan University, Wuxi 214122, PR China
| | - Jun Li
- Department of Biomedical Engineering, National University of Singapore, 15 Kent Ridge Crescent, Singapore 119276, Singapore; NUS Environmental Research Institute (NERI), National University of Singapore, 5 A Engineering Drive 1, Singapore 117411, Singapore.
| | - Yaoqi Tian
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi 214122, PR China; School of Food Science and Technology, Jiangnan University, Wuxi 214122, PR China.
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Fareez IM, Lim SM, Ramasamy K. Chemoprevention by Microencapsulated Lactiplantibacillus Plantarum LAB12 Against Orthotopic Colorectal Cancer Mice is Associated with Apoptosis and Anti-angiogenesis. Probiotics Antimicrob Proteins 2024; 16:99-112. [PMID: 36508139 DOI: 10.1007/s12602-022-10020-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/25/2022] [Indexed: 12/14/2022]
Abstract
The pathogenesis of colorectal cancer (CRC) is associated with gut dysbiosis that is attributed to unhealthy lifestyles and dietary habits. Consumption of microencapsulated probiotics may potentially restore the gut microbiota in favour of prevention against CRC. This study determined the fate of microencapsulated Lactiplantibacillus plantarum (formerly known as Lactobacillus plantarum) LAB12 in the gastrointestinal tract (GIT) and assessed the chemopreventive effect of microencapsulated L. plantarum LAB12 in vivo. The targeted release of L. plantarum LAB12 from Alg-based microcapsules at the stomach, ileum, caecum and colon of Sprague-Dawley rats was examined by confocal microscopy and qPCR. Microcapsules loaded with L. plantarum LAB12 remained intact in the stomach. Free L. plantarum LAB12 were present in abundance (> 7 log CFU) only in the intestines. Subsequently, the chemopreventive properties of microencapsulated L. plantarum LAB12 were validated against NU/NU nude mice bearing orthotopic transplanted CT-26 CRC (12 female mice; 4-6 weeks old; 20-22 g; n = 6/group). Orthotopic mice pre-supplemented with microencapsulated L. plantarum LAB12 (10 log CFU kg-1 BW for 11 weeks) were presented with significantly (p < 0.05) reduced tumour volume (- 98.87%) and weight (- 89.27%) when compared to control. Western blots indicated that the chemopreventive effect could be attributed to apoptosis and anti-angiogenesis mediated, at least in part, through upregulation of tumour suppressor p53 (+ 45.4%) and pro-apoptotic caspase-3 (+ 82.4%), and downregulation of pro-inflammatory COX-2 (- 57.9%), pro-angiogenic VEGF (- 66.8%) and PECAM-1 (-64.1%). Altogether, this study strongly implied the possibility of having L. plantarum LAB12-loaded microcapsules safely incorporated into food and nutraceutical products for prevention against CRC.
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Affiliation(s)
- Ismail M Fareez
- Collaborative Drug Discovery Research (CDDR) Group, Faculty of Pharmacy, Universiti Teknologi MARA (UiTM), Selangor Darul Ehsan, Cawangan Selangor, Kampus Puncak Alam, 42300, Bandar Puncak Alam, Selangor Darul Ehsan, Malaysia
- School of Biology, Faculty of Applied Sciences, Universiti Teknologi MARA, 40450, Shah Alam, Selangor Darul Ehsan, Malaysia
| | - Siong Meng Lim
- Collaborative Drug Discovery Research (CDDR) Group, Faculty of Pharmacy, Universiti Teknologi MARA (UiTM), Selangor Darul Ehsan, Cawangan Selangor, Kampus Puncak Alam, 42300, Bandar Puncak Alam, Selangor Darul Ehsan, Malaysia
| | - Kalavathy Ramasamy
- Collaborative Drug Discovery Research (CDDR) Group, Faculty of Pharmacy, Universiti Teknologi MARA (UiTM), Selangor Darul Ehsan, Cawangan Selangor, Kampus Puncak Alam, 42300, Bandar Puncak Alam, Selangor Darul Ehsan, Malaysia.
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Saleh A, Akkuş-Dağdeviren ZB, Friedl JD, Knoll P, Bernkop-Schnürch A. Chitosan - Polyphosphate nanoparticles for a targeted drug release at the absorption membrane. Heliyon 2022; 8:e10577. [PMID: 36177244 PMCID: PMC9513768 DOI: 10.1016/j.heliyon.2022.e10577] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Revised: 07/26/2022] [Accepted: 09/05/2022] [Indexed: 11/30/2022] Open
Abstract
The aim of this study was to develop nanoparticles (NPs) providing a targeted drug release directly on the epithelium of the intestinal mucosa. NPs were prepared via ionic gelation between cationic chitosan (Cs) and anionic polyphosphate (PP). The resulting NPs were characterized by their size, polydispersity index (PDI) and zeta potential. Isolated and cell-associated intestinal alkaline phosphatase (IAP) was employed to trigger polyphosphate cleavage in Cs-PP NPs which was quantified via malachite green assay. In parallel, the shift in zeta potential was determined. In-vitro drug release studies were performed in Franz diffusion cells with Cs-PP NPs containing rhodamine 123 as model active ingredient. Furthermore, cytotoxicity of Cs-PP NPs was assessed via resazurin assay on Caco-2 cells as well as via hemolysis assay on red blood cells. Cs-PP NPs exhibited an average size of 144.17 ± 10.95 nm and zeta potential of -12.6 ± 0.50 mV. The encapsulation efficiency of rhodamine 123 by Cs-PP NPs was 86.8%. After incubation with isolated IAP for 3 h the polyphosphate of Cs-PP NPs was cleaved to monophosphate and zeta potential raised up to -2.3 ± 0.30 mV. Cs-PP NPs showed a non-toxic profile. Within 3 h, 62.0 ± 10.8% and 14.1 ± 2.2% of total rhodamine 123 was released from Cs-PP NPs upon incubation with isolated as well as porcine intestine derived intestinal alkaline phosphatase (IAP), respectively. According to these results, Cs-PP NPs are promising drug delivery systems to enable a drug targeted release at the absorption membrane.
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Affiliation(s)
- Ahmad Saleh
- Center for Chemistry and Biomedicine, Department of Pharmaceutical Technology, Institute of Pharmacy, University of Innsbruck, Innrain 80/82, 6020 Innsbruck, Austria
- Department of Pharmacy, Universitas Mandala Waluya, A.H.Nasution, Kendari 93231, Southeast Sulawesi, Indonesia
| | - Zeynep Burcu Akkuş-Dağdeviren
- Center for Chemistry and Biomedicine, Department of Pharmaceutical Technology, Institute of Pharmacy, University of Innsbruck, Innrain 80/82, 6020 Innsbruck, Austria
| | - Julian David Friedl
- Center for Chemistry and Biomedicine, Department of Pharmaceutical Technology, Institute of Pharmacy, University of Innsbruck, Innrain 80/82, 6020 Innsbruck, Austria
| | - Patrick Knoll
- Center for Chemistry and Biomedicine, Department of Pharmaceutical Technology, Institute of Pharmacy, University of Innsbruck, Innrain 80/82, 6020 Innsbruck, Austria
| | - Andreas Bernkop-Schnürch
- Center for Chemistry and Biomedicine, Department of Pharmaceutical Technology, Institute of Pharmacy, University of Innsbruck, Innrain 80/82, 6020 Innsbruck, Austria
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Ye Q, Ge F, Wang Y, Woo MW, Wu P, Chen XD, Selomulya C. On improving bioaccessibility and targeted release of curcumin-whey protein complex microparticles in food. Food Chem 2020; 346:128900. [PMID: 33418409 DOI: 10.1016/j.foodchem.2020.128900] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Revised: 10/02/2020] [Accepted: 12/16/2020] [Indexed: 12/11/2022]
Abstract
Curcumin is a bioactive food component, with poor bioaccessibility due to low water solubility and stability. Spray drying retained and in fact enhanced curcumin-whey protein isolate (WPI) complexation via desolvation, lowering the amount of unbound curcumin to <5% wt after drying, forming microparticles with better water solubility, stability, and bioaccessibility than raw curcumin. The desolvated microparticles encapsulated 3.47 ± 0.05 mg/g curcumin, almost one order of magnitude higher than the un-desolvated sample 0.37 ± 0.03 mg/g. After incorporation into yogurt, the rapid-release formula liberated 87% curcumin, whereas the targeted-release one discharged 44% before entering the simulated intestinal condition. Most of the yogurt sensory properties were not adversely affected, except for colour and curcumin flavour. This study proposed a strategy in which food ingredients containing hydrophobic bioactive small molecules can be incorporated into a food matrix to improve bioaccessibility and targeted release, without affecting their sensory properties.
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Affiliation(s)
- Qianyu Ye
- Department of Chemical Engineering, Monash University, Clayton 3168, Australia
| | - Fangzi Ge
- Suzhou Key Laboratory of Green Chemical Engineering, School of Chemical and Environmental Engineering, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China
| | - Yong Wang
- School of Chemical Engineering, UNSW Sydney, NSW 2052, Australia
| | - Meng Wai Woo
- Department of Chemical & Materials Engineering, The University of Auckland, Auckland, New Zealand
| | - Peng Wu
- Suzhou Key Laboratory of Green Chemical Engineering, School of Chemical and Environmental Engineering, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China
| | - Xiao Dong Chen
- Suzhou Key Laboratory of Green Chemical Engineering, School of Chemical and Environmental Engineering, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China
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Wu Y, Deng G, Jiang K, Wang H, Song Z, Han H. Photothermally triggered nitric oxide nanogenerator targeting type IV pili for precise therapy of bacterial infections. Biomaterials 2020; 268:120588. [PMID: 33307370 DOI: 10.1016/j.biomaterials.2020.120588] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2020] [Revised: 10/27/2020] [Accepted: 11/27/2020] [Indexed: 12/24/2022]
Abstract
Nitric oxide (NO) is an important biological messenger involved in the treatment of bacterial infections, but its controlled and targeted release in bacterial infections remains a major challenge. Herein, an intelligent NO nanogenerator triggered by near-infrared (NIR) light is constructed for targeted treatment of P. aeruginosa bacterial infection. Since maleimide can recognize and attach to the pilus of T4P of P. aeruginosa, we adopt this strategy to achieve the accurate release of therapeutic drugs at the infection site, i.e., after maleimide targets Gram-negative bacteria, the SNP@MOF@Au-Mal nanogenerator will release NO and generate ROS in situ from the inorganic photosensitizer gold nanoparticles under NIR irradiation to achieve synergistic antibacterial effect. In vivo experiments proved that the bacterial burden on the wound was reduced by 97.7%. Additionally, the nanogenerator was shown to promote the secretion of growth factors, which play a key role in regulating inflammation and inducing angiogenesis. This strategy has the advantage of generating a high concentration of NO in situ to promote the transfer of more NO and its derivatives (N2O3, ONOO-) to bacteria, thereby significantly improving the antibacterial effect. The multifunctional antibacterial platform has been demonstrated as a good carrier for gas therapy because of its simple and efficient gas release performance, indicating its great potential for the treatment of drug-resistant bacterial infections.
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Affiliation(s)
- Yang Wu
- State Key Laboratory of Agricultural Microbiology, College of Life Science and Technology, Huazhong Agricultural University, Wuhan, 430070, China
| | - Guiyun Deng
- State Key Laboratory of Agricultural Microbiology, College of Science, Huazhong Agricultural University, Wuhan, 430070, China
| | - Kai Jiang
- State Key Laboratory of Agricultural Microbiology, College of Science, Huazhong Agricultural University, Wuhan, 430070, China
| | - Huajuan Wang
- State Key Laboratory of Agricultural Microbiology, College of Food Science and Technology, Huazhong Agricultural University, Wuhan, 430070, China
| | - Zhiyong Song
- State Key Laboratory of Agricultural Microbiology, College of Science, Huazhong Agricultural University, Wuhan, 430070, China.
| | - Heyou Han
- State Key Laboratory of Agricultural Microbiology, College of Life Science and Technology, Huazhong Agricultural University, Wuhan, 430070, China; State Key Laboratory of Agricultural Microbiology, College of Science, Huazhong Agricultural University, Wuhan, 430070, China; State Key Laboratory of Agricultural Microbiology, College of Food Science and Technology, Huazhong Agricultural University, Wuhan, 430070, China.
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Zohreh N, Rastegaran Z, Hosseini SH, Akhlaghi M, Istrate C, Busuioc C. pH-triggered intracellular release of doxorubicin by a poly(glycidyl methacrylate)-based double-shell magnetic nanocarrier. Mater Sci Eng C Mater Biol Appl 2020; 118:111498. [PMID: 33255062 DOI: 10.1016/j.msec.2020.111498] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/01/2020] [Revised: 08/25/2020] [Accepted: 09/04/2020] [Indexed: 12/26/2022]
Abstract
Two core-double-shell pH-sensitive nanocarriers were fabricated using Fe3O4 as magnetic core, poly(glycidyl methacrylate-PEG) and salep dialdehyde as the first and the second shell, and doxorubicin as the hydrophobic anticancer drug. Two nanocarriers were different in the drug loading steps. The interaction between the first and the second shell assumed to be pH-sensitive via acetal cross linkages. The structure of nanocarriers, organic shell loading, magnetic responsibility, morphology, size, dispersibility, and drug loading content were investigated by IR, NMR, TG, VSM, XRD, DLS, HRTEM and UV-Vis analyses. The long-term drug release profiles of both nanocarriers showed that the drug loading before cross-linking between the first and second shell led to a more pH-sensitive nanocarrier exhibiting higher control on DOX release. Cellular toxicity assay (MTT) showed that DOX-free nanocarrier is biocompatible having cell viability greater than 80% for HEK-293 and MCF-7 cell lines. Besides, high cytotoxic effect observed for drug-loaded nanocarrier on MCF-7 cancer cells. Cellular uptake analysis showed that the nanocarrier is able to transport DOX into the cytoplasm and perinuclear regions of MCF-7 cells. In vitro hemolysis and coagulation assays demonstrated high blood compatibility of nanocarrier. The results also suggested that low concentration of nanocarrier have a great potential as a contrast agent in magnetic resonance imaging (MRI).
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Affiliation(s)
- Nasrin Zohreh
- Department of Chemistry, Faculty of Science, University of Qom, P. O. Box: 37185-359, Qom, Iran.
| | - Zahra Rastegaran
- Department of Chemistry, Faculty of Science, University of Qom, P. O. Box: 37185-359, Qom, Iran
| | - Seyed Hassan Hosseini
- Department of Chemical Engineering, University of Science and Technology of Mazandaran, Behshahr, Iran.
| | - Mehdi Akhlaghi
- Research Center for Nuclear Medicine, Tehran University of Medical Sciences, Tehran 1414713135, Iran
| | - Cosmin Istrate
- Laboratory of Atomic Structures and Defects in Advanced Materials, National Institute of Materials Physics, Magurele, Romania
| | - Cristina Busuioc
- Department of Science and Engineering of Oxide Materials and Nanomaterials, University Politehnica of Bucharest, Bucharest, Romania
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Rahaiee S, Assadpour E, Faridi Esfanjani A, Silva AS, Jafari SM. Application of nano/microencapsulated phenolic compounds against cancer. Adv Colloid Interface Sci 2020; 279:102153. [PMID: 32289738 DOI: 10.1016/j.cis.2020.102153] [Citation(s) in RCA: 47] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2019] [Revised: 03/30/2020] [Accepted: 03/30/2020] [Indexed: 12/19/2022]
Abstract
Nowadays, polyphenols as bioactive compounds are being used in producing anti-cancer drugs. Low stability against harsh environmental conditions, untargeted release, low solubility, and low absorption of pure phenolic molecules are significant barriers, which decrease the functions of polyphenols. Recently, the nanoencapsulation processes have been applied to overcome these restrictions, in which the anti-cancer activity of polyphenols has been noticeably increased. This review will focus on the anti-cancer activity of polyphenols, and the effect of loading polyphenolics into various micro/nanoencapsulation systems on their anti-cancer activity. Different encapsulation systems such as lipid and polymer based nanoparticles, and solid form of encapsulated phenolic molecules by nano-spray dryer and electrospinnig have been used for loading of polyphenols. Incorporation of phenolic molecules into various carriers inevitably increases their anti-cancer activity. Because, in this way, encapsulated cargos can provide a targeted release, which will increase the bioavailability of phenolic molecules and their functions such as absorption into cancer cell.
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Theismann EM, Keppler JK, Knipp JR, Fangmann D, Appel E, Gorb SN, Waetzig GH, Schreiber S, Laudes M, Schwarz K. Adjustment of triple shellac coating for precise release of bioactive substances with different physico-chemical properties in the ileocolonic region. Int J Pharm 2019; 564:472-484. [PMID: 30991131 DOI: 10.1016/j.ijpharm.2019.04.039] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2018] [Revised: 04/11/2019] [Accepted: 04/12/2019] [Indexed: 01/14/2023]
Abstract
Formulations for the controlled release of substances in the human terminal ileum and colon are essential to target the gut microbiome and its interactions with the intestinal mucosa. In contrast to pharmaceutical enteric coatings, reliable food-grade alternatives are still scarce. Shellac coatings have been used for various active ingredients, but their stability is affected by the physicochemical properties of the encapsulated substances. It is well known, that shellac release can be modulated by an acidic subcoating. Here, we hypothesized that a triple shellac coating with an adjusted intermediate coating (acidic or alkaline) can be effectively used to counteract the differences in pH value of various encapsulated substances, allowing a precise targeting of the desired release pH value. First, the system was tested with riboflavin 5'-monophosphate sodium salt dihydrate (RMSD) as a characteristic model substance. Secondly, it was transferred to nicotinic acid (NA) and nicotinamide (NAM) as bioactive compounds with different physio-chemical properties: NAM, an alkaline crystalline and highly water-soluble substance, led to a premature release from conventional shellac microcapsules, whereas RMSD and NA with their medium solubility and neutral to acidic pH properties delayed the shellac dissolution. A precise modulation of the release profile of each substance was possible by the addition of different intermediate subcoatings: an acidic layer with citric acid counteracted the premature release of the alkaline and highly soluble NAM. In contrast, an alkaline sodium bicarbonate intermediate subcoating enhanced shellac swelling and delayed the release of NA and RMSD. In conclusion, the novel triple-layer shellac coating provides a much higher adaptability and reliability for nutritional formulations aiming at a targeted release in the ileocolonic region.
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Affiliation(s)
- Eva-Maria Theismann
- Division of Food Technology, Kiel University, Heinrich-Hecht-Platz 10, 24118 Kiel, Germany.
| | | | - Jörg-Rainer Knipp
- Division of Food Technology, Kiel University, Heinrich-Hecht-Platz 10, 24118 Kiel, Germany
| | - Daniela Fangmann
- Department of Internal Medicine I, University Hospital Schleswig-Holstein, Campus Kiel, Arnold-Heller-Strasse 3, 24105 Kiel, Germany
| | - Esther Appel
- Department of Functional Morphology and Biomechanics, Kiel University, Am Botanischen Garten 1-9, 24118 Kiel, Germany
| | - Stanislav N Gorb
- Department of Functional Morphology and Biomechanics, Kiel University, Am Botanischen Garten 1-9, 24118 Kiel, Germany
| | - Georg H Waetzig
- CONARIS Research Institute AG, Schauenburgerstrasse 116, 24118 Kiel, Germany
| | - Stefan Schreiber
- Department of Internal Medicine I, University Hospital Schleswig-Holstein, Campus Kiel, Arnold-Heller-Strasse 3, 24105 Kiel, Germany
| | - Matthias Laudes
- Department of Internal Medicine I, University Hospital Schleswig-Holstein, Campus Kiel, Arnold-Heller-Strasse 3, 24105 Kiel, Germany
| | - Karin Schwarz
- Division of Food Technology, Kiel University, Heinrich-Hecht-Platz 10, 24118 Kiel, Germany
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Ye Q, Woo MW, Selomulya C. Modification of molecular conformation of spray-dried whey protein microparticles improving digestibility and release characteristics. Food Chem 2018; 280:255-261. [PMID: 30642493 DOI: 10.1016/j.foodchem.2018.12.074] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2018] [Revised: 12/14/2018] [Accepted: 12/14/2018] [Indexed: 01/23/2023]
Abstract
This study reports on the preparation of riboflavin-loaded whey protein isolate (WPI) microparticles, using desolvation and then spray drying. Ethanol desolvation led to the exposure of embedded hydrophobic amino acids of WPI to riboflavin, facilitating the formation of riboflavin-WPI complexes. The extent of desolvation and cross-linking influenced the morphology of the spray-dried microparticles, while the moisture content of microparticles decreased with desolvation and increased with crosslinking. The modification of WPI conformation upon desolvation could be retained in the dry state via spray drying. The gastric resistance, release site and release characteristics of microparticles were readily adjusted by varying the ethanol and calcium ion contents from 0 to 50% v/v and from 0 to 2 mM, respectively. The sample prepared from 30% v/v ethanol without calcium crosslinking displayed rapid peptic digestion in less than 30 min. The samples from 30% v/v ethanol at 1 and 2 mM Ca2+ exhibited excellent gastric resistance and intestinal release.
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Affiliation(s)
- Qianyu Ye
- Department of Chemical Engineering, Monash University, 18 Alliance Lane, Clayton, VIC 3800, Australia
| | - Meng Wai Woo
- Department of Chemical Engineering, Monash University, 18 Alliance Lane, Clayton, VIC 3800, Australia
| | - Cordelia Selomulya
- Department of Chemical Engineering, Monash University, 18 Alliance Lane, Clayton, VIC 3800, Australia.
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Wang Z, Xia J, Cai F, Zhang F, Yang M, Bi S, Gui R, Li Y, Xia Y. Aptamer-functionalized hydrogel as effective anti-cancer drugs delivery agents. Colloids Surf B Biointerfaces 2015; 134:40-6. [PMID: 26142627 DOI: 10.1016/j.colsurfb.2015.06.031] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2015] [Revised: 05/02/2015] [Accepted: 06/12/2015] [Indexed: 10/23/2022]
Abstract
An aptamer-functionalized hydrogel has been developed, which can be regulated by the AS1411 aptamer with the sol-gel conversion. Also the hydrogel can be further utilized for the controlled encapsulation and release of the cancer drugs. Specially, the AS1411 initiates the hybridization of acrydite-modified oligonucleotides to form the hydrogels and the presence of the target protein nucleolin leads the gel to dissolve as a result of reducing the cross-linking density by competitive target-aptamer binding. Based on the rheology of hydrogels, it is possible to utilize this material for storing and releasing molecules. In this research, the cancer drug doxorubicin is encapsulated inside the gel during the formation of the hydrogel and then released in the presence of nucleolin. Further experiments are carried out to prove the specific recognition of target matter. In vitro researches confirm that the aptamer-functionalized hydrogels can be used as drug carriers in targeted therapy and other biotechnological applications.
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Affiliation(s)
- Zonghua Wang
- Collaborative Innovation Center for Marine Biomass Fiber Materials and Textiles, Laboratory of Fiber Materials and Modern Textile, The Growing Base for State Key Laboratory, College of Chemical Science and Engineering, Shandong Sino-Japanese Center for Collaborative Research of Carbon Nanomaterials, Qingdao University, Ningxia Road 308, Qingdao 266071, Shandong, China.
| | - Jianfei Xia
- Collaborative Innovation Center for Marine Biomass Fiber Materials and Textiles, Laboratory of Fiber Materials and Modern Textile, The Growing Base for State Key Laboratory, College of Chemical Science and Engineering, Shandong Sino-Japanese Center for Collaborative Research of Carbon Nanomaterials, Qingdao University, Ningxia Road 308, Qingdao 266071, Shandong, China
| | - Feng Cai
- Collaborative Innovation Center for Marine Biomass Fiber Materials and Textiles, Laboratory of Fiber Materials and Modern Textile, The Growing Base for State Key Laboratory, College of Chemical Science and Engineering, Shandong Sino-Japanese Center for Collaborative Research of Carbon Nanomaterials, Qingdao University, Ningxia Road 308, Qingdao 266071, Shandong, China
| | - Feifei Zhang
- Collaborative Innovation Center for Marine Biomass Fiber Materials and Textiles, Laboratory of Fiber Materials and Modern Textile, The Growing Base for State Key Laboratory, College of Chemical Science and Engineering, Shandong Sino-Japanese Center for Collaborative Research of Carbon Nanomaterials, Qingdao University, Ningxia Road 308, Qingdao 266071, Shandong, China
| | - Min Yang
- Collaborative Innovation Center for Marine Biomass Fiber Materials and Textiles, Laboratory of Fiber Materials and Modern Textile, The Growing Base for State Key Laboratory, College of Chemical Science and Engineering, Shandong Sino-Japanese Center for Collaborative Research of Carbon Nanomaterials, Qingdao University, Ningxia Road 308, Qingdao 266071, Shandong, China
| | - Sai Bi
- Collaborative Innovation Center for Marine Biomass Fiber Materials and Textiles, Laboratory of Fiber Materials and Modern Textile, The Growing Base for State Key Laboratory, College of Chemical Science and Engineering, Shandong Sino-Japanese Center for Collaborative Research of Carbon Nanomaterials, Qingdao University, Ningxia Road 308, Qingdao 266071, Shandong, China
| | - Rijun Gui
- Collaborative Innovation Center for Marine Biomass Fiber Materials and Textiles, Laboratory of Fiber Materials and Modern Textile, The Growing Base for State Key Laboratory, College of Chemical Science and Engineering, Shandong Sino-Japanese Center for Collaborative Research of Carbon Nanomaterials, Qingdao University, Ningxia Road 308, Qingdao 266071, Shandong, China
| | - Yanhui Li
- Collaborative Innovation Center for Marine Biomass Fiber Materials and Textiles, Laboratory of Fiber Materials and Modern Textile, The Growing Base for State Key Laboratory, College of Chemical Science and Engineering, Shandong Sino-Japanese Center for Collaborative Research of Carbon Nanomaterials, Qingdao University, Ningxia Road 308, Qingdao 266071, Shandong, China
| | - Yanzhi Xia
- Collaborative Innovation Center for Marine Biomass Fiber Materials and Textiles, Laboratory of Fiber Materials and Modern Textile, The Growing Base for State Key Laboratory, College of Chemical Science and Engineering, Shandong Sino-Japanese Center for Collaborative Research of Carbon Nanomaterials, Qingdao University, Ningxia Road 308, Qingdao 266071, Shandong, China
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