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Kim DY, Yang T, Srivastava P, Nile SH, Seth CS, Jadhav U, Syed A, Bahkali AH, Ghodake GS. Alginic acid-functionalized silver nanoparticles: A rapid monitoring tool for detecting the technology-critical element tellurium. J Hazard Mater 2024; 465:133161. [PMID: 38103291 DOI: 10.1016/j.jhazmat.2023.133161] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/15/2023] [Revised: 11/28/2023] [Accepted: 11/30/2023] [Indexed: 12/19/2023]
Abstract
The increasing global demand for tellurium, driven by its critical role in alloys, photovoltaic devices, and electronics, has raised concerns about its environmental pollution and neurotoxicity. In response, the potential of alginic acid (AA), a renewable, low-cost, and sustainable biopolymer, was explored for the biosynthesis of ultra-small silver nanoparticles (AgNPs) and their application in the detection of tellurium (Te(IV)). The effect of key synthesis parameters on desired physicochemical properties and yield of AgNPs was established to ensure high specificity and sensitivity towards Te(IV). The purified AgNPs with AA surface ligands were utilized to demonstrate a ratiometric absorbance sensor that exhibits excellent linearity and nanomolar-level affinity. This approach achieved a high correlation coefficient of ∼ 0.982, with a low detection limit of about 22 nM. Further investigations into the effect of pH, ionic strength, and organic molecules were conducted to elucidate detection performance and molecular understanding. The detection mechanism relies on the coordination between Te(IV) ions and the carboxylate groups of AA, which initiates aggregation-induced plasmon coupling in adjacent AgNPs. The capability of this analytical method to monitor Te(IV) in real-world water samples features its rapidity, user-friendliness, and suitability for point-of-care monitoring, making it a promising alternative to more complex techniques.
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Affiliation(s)
- Dae-Young Kim
- Department of Biological and Environmental Science, Dongguk University-Seoul, 32 Dongguk-ro, Ilsandong-gu, Goyang-si 10326, Gyeonggi-do, Republic of Korea
| | - Tianxi Yang
- Food, Nutrition and Health, Faculty of Land and Food Systems, The University of British Columbia, Vancouver, BC V6T 1Z4 Canada
| | - Priyanka Srivastava
- Department of Chemistry, University of Allahabad, Prayagraj, Uttar Pradesh 211002, India
| | - Shivraj Hariram Nile
- Division of Food and Nutrition, DBT-National Agri-Food Biotechnology Institute, Sahibzada Ajit Singh Nagar, Punjab 140306, India
| | | | - Umesh Jadhav
- Department of Microbiology, Savitribai Phule Pune University, Pune 411007, Maharashtra, India
| | - Asad Syed
- Department of Botany and Microbiology, College of Science, King Saud University, P.O. 2455, Riyadh 11451, Saudi Arabia
| | - Ali H Bahkali
- Department of Botany and Microbiology, College of Science, King Saud University, P.O. 2455, Riyadh 11451, Saudi Arabia
| | - Gajanan Sampatrao Ghodake
- Department of Biological and Environmental Science, Dongguk University-Seoul, 32 Dongguk-ro, Ilsandong-gu, Goyang-si 10326, Gyeonggi-do, Republic of Korea.
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Mahmoud HA, Kamel EM, Mahmoud AM, Alruhaimi RS, El-Zanaty AM, Abd El-Salam HM, Abdel-Gawad OF. Multitargeted molecular modelling of alginic acid modified with 4-aminophenol dopped with silver nanoparticles as a potent cytotoxic agent. Heliyon 2023; 9:e17106. [PMID: 37484376 PMCID: PMC10361328 DOI: 10.1016/j.heliyon.2023.e17106] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2023] [Revised: 06/05/2023] [Accepted: 06/07/2023] [Indexed: 07/25/2023] Open
Abstract
The activity of alginic acid as a cytotoxic agent was improved by structure modification using 4-aminophenol (4-AP) through condensation and polymerization processes. Then, silver nanoparticles were employed through doping to further enhance the cytotoxic activity of the modified polymer. The structure of the prepared materials was characterized by FT-IR, 1HNMR, UV spectroscopy, X-ray diffraction, and electron microscopy, and the thermal behavior of all synthesized materials was intensively studied. The cytotoxicity of the prepared compounds against cell lines of human hepatocellular (HepG-2) and lung (A-549) carcinomas was investigated. Alginic acid modified with 4-AP (Alg-4-AP3) showed the highest activity against HepG-2 and A-549 among all tested materials with IC50 values of 3.0 ± 0.19 μg/mL and 3.63 ± 0.23 μg/mL, respectively. Multitargeted molecular docking was employed to explore the binding modes of our compounds with the receptors EGFR, HER2, and VEGFR 2. The results revealed the inhibitory activity of our tested compounds against the proposed protein receptors, findings coincided with the in vitro results. In conclusion, the modification of alginic acid with 4-AP improved its cytotoxic activity against HepG-2 and A-549 cancer cells. In addition, doping the new materials with silver nanoparticles (AgNPs) further enhanced the cytotoxic activity.
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Affiliation(s)
- Haneen A. Mahmoud
- Chemistry Department, Faculty of Science, Beni-Suef University, Beni-Suef, 62514, Egypt
| | - Emadeldin M. Kamel
- Chemistry Department, Faculty of Science, Beni-Suef University, Beni-Suef, 62514, Egypt
| | - Ayman M. Mahmoud
- Physiology Division, Zoology Department, Faculty of Science, Beni-Suef University, Beni-Suef, 62514, Egypt
- Department of Life Sciences, Faculty of Science and Engineering, Manchester Metropolitan University, Manchester, M1 5GD, UK
| | - Reem S. Alruhaimi
- Department of Biology, College of Science, Princess Nourah bint Abdulrahman University, Riyadh, 11671, Saudi Arabia
| | - Ali M. El-Zanaty
- Chemistry Department, Faculty of Science, Beni-Suef University, Beni-Suef, 62514, Egypt
| | | | - Omayma F. Abdel-Gawad
- Chemistry Department, Faculty of Science, Beni-Suef University, Beni-Suef, 62514, Egypt
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Mousavi SE, Hatamipour MS, Yegdaneh A. Ultrasound-assisted extraction of alginic acid from Sargassum angustifolium harvested from Persian Gulf shores using response surface methodology. Int J Biol Macromol 2023; 226:660-669. [PMID: 36521702 DOI: 10.1016/j.ijbiomac.2022.12.070] [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: 09/15/2022] [Revised: 11/29/2022] [Accepted: 12/07/2022] [Indexed: 12/15/2022]
Abstract
In this study, the extraction and characterization of alginic acid, the most abundant compound among brown algae were investigated. The used algae were Sargassum angustifolium from the family of brown algae native to the coasts of the Persian Gulf. The effect of temperature, time, algae mass to solvent volume ratio, and ultrasonic power on the extraction yield and ratio of monomers (M/G) was investigated using the central composite design method. Moreover, the effect of the mentioned parameters on the poly dispersity index and cytotoxic effects against breast cancer cells were also investigated. The maximum obtained extraction yield was 46 %, which was higher than those reported for algae in tropical climates. This shows the effectiveness of ultrasound in facilitating the extraction process. In addition, the minimum monomer ratio was 0.45, the minimum poly dispersity index was 2.5 and the maximum cytotoxicity for using the extract on breast cancer cell line (MCF-7) was 20.3 % (with alginic acid concentration of 250 micrograms per milliliter).
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Affiliation(s)
- Seyed Erfan Mousavi
- Chemical Engineering Department, Faculty of Engineering, University of Isfahan, Isfahan, Iran
| | | | - Afsaneh Yegdaneh
- Department of Pharmacognosy, School of Pharmacy and Pharmaceutical Sciences, Isfahan University of Medical Sciences, Isfahan, Iran
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García-Torres J, Colombi S, Macor LP, Alemán C. Multitasking smart hydrogels based on the combination of alginate and poly(3,4-ethylenedioxythiophene) properties: A review. Int J Biol Macromol 2022; 219:312-32. [PMID: 35934076 DOI: 10.1016/j.ijbiomac.2022.08.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Revised: 07/28/2022] [Accepted: 08/02/2022] [Indexed: 11/05/2022]
Abstract
Poly(3,4-ethylenedioxythiophene) (PEDOT), a very stable and biocompatible conducting polymer, and alginate (Alg), a natural water-soluble polysaccharide mainly found in the cell wall of various species of brown algae, exhibit very different but at the same complementary properties. In the last few years, the remarkable capacity of Alg to form hydrogels and the electro-responsive properties of PEDOT have been combined to form not only layered composites (PEDOT-Alg) but also interpenetrated multi-responsive PEDOT/Alg hydrogels. These materials have been found to display outstanding properties, such as electrical conductivity, piezoelectricity, biocompatibility, self-healing and re-usability properties, pH and thermoelectric responsiveness, among others. Consequently, a wide number of applications are being proposed for PEDOT-Alg composites and, especially, PEDOT/Alg hydrogels, which should be considered as a new kind of hybrid material because of the very different chemical nature of the two polymeric components. This review summarizes the applications of PEDOT-Alg and PEDOT/Alg in tissue interfaces and regeneration, drug delivery, sensors, microfluidics, energy storage and evaporators for desalination. Special attention has been given to the discussion of multi-tasking applications, while the new challenges to be tackled based on aspects not yet considered in either of the two polymers have also been highlighted.
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Boughrara L, Zaoui F, Guezzoul M, Sebba FZ, Bounaceur B, Kada SO. New alginic acid derivatives ester for methylene blue dye adsorption: kinetic, isotherm, thermodynamic, and mechanism study. Int J Biol Macromol 2022; 205:651-663. [PMID: 35217085 DOI: 10.1016/j.ijbiomac.2022.02.087] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [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: 09/29/2021] [Revised: 01/11/2022] [Accepted: 02/15/2022] [Indexed: 02/09/2023]
Abstract
In this paper, the application of ester materials prepared by grafting different carbon chain lengths of diols in alginic acid (AA) by a simple, fast and efficient method for the adsorption of methylene blue (MB) is studied. The AA ester derivatives are characterized by Fourier transform infrared spectroscopy (FTIR), X-ray photoelectron spectroscopy (XPS), thermogravimetric analysis (TGA), derivative thermogravimetry (DTG), scanning electron microscopy (SEM), atomic force microscopy (AFM), and Zeta potential before and after MB adsorption. This study shows a significant improvement in the adsorption capacity of MB by AA after its esterification with a Qmax value up to 454.545 mg/g for the best adsorbent "Poly(AA-g-EG)". The experimental data are studied according to two isothermal models (Langmuir and Freundlich) and two kinetic models (pseudo-second order and intra-particle diffusion). The adsorption of MB is also evaluated thermodynamically. An adsorption mechanism of MB is established.
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Affiliation(s)
- Lemya Boughrara
- Laboratoire de Chimie Physique Macromoléculaire, Département de Chimie, Université Oran1 Ahmed Ben Bella, B.P 1524 El-Menaouer, 31000 Oran, Algeria.
| | - Farouk Zaoui
- Laboratoire de Chimie Physique Macromoléculaire, Département de Chimie, Université Oran1 Ahmed Ben Bella, B.P 1524 El-Menaouer, 31000 Oran, Algeria; Centre Universitaire Aflou, B.P 306 Aflou, Laghouat, Algeria.
| | - M'hamed Guezzoul
- Laboratory of Materials (LABMAT), National Polytechnique School (ENP) of Oran, BP 1523, Oran Mnaouar, Oran, Algeria
| | - Fatima Zohra Sebba
- Laboratoire de Chimie Physique Macromoléculaire, Département de Chimie, Université Oran1 Ahmed Ben Bella, B.P 1524 El-Menaouer, 31000 Oran, Algeria
| | - Boumediene Bounaceur
- Laboratoire de Chimie Physique Macromoléculaire, Département de Chimie, Université Oran1 Ahmed Ben Bella, B.P 1524 El-Menaouer, 31000 Oran, Algeria
| | - Seghier Ould Kada
- Laboratoire de Chimie Physique Macromoléculaire, Département de Chimie, Université Oran1 Ahmed Ben Bella, B.P 1524 El-Menaouer, 31000 Oran, Algeria
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Cui J, Li Y, Zhang W, Qian H, Zhang Z, Xu K. Alginic acid induces oxidative stress-mediated hormone secretion disorder, apoptosis and autophagy in mouse granulosa cells and ovaries. Toxicology 2022; 467:153099. [PMID: 35066102 DOI: 10.1016/j.tox.2022.153099] [Citation(s) in RCA: 5] [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: 09/18/2021] [Revised: 01/09/2022] [Accepted: 01/10/2022] [Indexed: 12/26/2022]
Abstract
Alginic acid (AA) is a kind of polysaccharide extracted from brown seaweeds and has been widely used in food industry. Certain positive effects of AA, such as anti-inflammation and anti-allergy, have been reported. Nevertheless, as a potential chemical contaminant of the environment, its impact on female reproductive system remains to be investigated. The purpose of this study is to explore the impact of AA on ovary and to investigate the further cellular mechanism. Primarily, in vitro cultured mouse ovary granulosa cells (GCs) were treated with AA at a concentration of 10μM for 24 h. The cells and supernatant were collected and subjected to further measures. The results demonstrated that after being treated with 10μM AA for 24 h the levels of estradiol and progesterone in supernatant were down-regulated. And excessive reactive oxygen species (ROS) and declined antioxidant capacity were also determined. Additionally, a large number of apoptotic bodies and autophagic vesicles were found in the experimental cells, and the mitochondria-mediated apoptotic pathway was demonstrated to play a main role in GCs apoptosis. To further investigate the effect of AA on ovary, the female ICR mice were administered with AA (10 mg/ kg bodyweight) intraperitoneally for successive 35 days, and the estrus phase was recorded simultaneously. After exposure, the ovaries and blood samples were collected for further analysis. The results revealed that the estrus period of the mice was shortened and the interestrus period was extended after being treated with AA for 35 days. At the organismal level, the numbers of antral follicles and atresia follicles increased and the levels of pro-apoptosis and autophagy-related proteins were detected upregulated after AA treatment. Taken together, both in vivo and in vitro data suggested that AA has toxicity on female reproduction by disrupting estrogen production and inducing oxidative stress, mitochondria-mediated apoptosis and autophagy. Our results provide new scientific basis and the concern for controlling the increasing use of AA.
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Affiliation(s)
- Jieyu Cui
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling Shaanxi, 712100, China
| | - Yankun Li
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling Shaanxi, 712100, China
| | - Wenqiang Zhang
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling Shaanxi, 712100, China
| | - Hongrun Qian
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling Shaanxi, 712100, China
| | - Zhiying Zhang
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling Shaanxi, 712100, China.
| | - Kun Xu
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling Shaanxi, 712100, China.
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Boughrara L, Sebba FZ, Sebti H, Choukchou-Braham E, Bounaceur B, Kada SO, Zaoui F. Removal of Zn(II) and Ni(II) heavy metal ions by new alginic acid-ester derivatives materials. Carbohydr Polym 2021; 272:118439. [PMID: 34420707 DOI: 10.1016/j.carbpol.2021.118439] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [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: 05/13/2021] [Revised: 06/25/2021] [Accepted: 07/11/2021] [Indexed: 01/20/2023]
Abstract
The present work concerns the preparation of new materials based on alginic acid (AA) and diols in a facile and efficient process by improving the adsorption properties of Zn(II) and Ni(II) metal ions on the modified AA. The materials were analysed by zeta potential, thermogravimetric analysis (TGA), derivative thermogravimetry (DTG), in addition to the Fourier Transform InfraRed spectroscopy (FTIR), scanning electron microscope (SEM) and X-ray photoelectron spectroscopy (XPS) before and after the adsorption behaviour was conducted. The results show that the esterification of AA with diols of different lengths significantly improves its adsorption efficiency of Zn(II) and Ni(II) with Qmax up to 200 mg/g and 185.185 mg/g respectively. Equilibrium and kinetic studies showed that the Langmuir and Freundlich adsorption isotherm models fit the experimental data well, and followed a pseudo-first order kinetic model and the particle diffusion model with correlation coefficients R2 ≈ 1.
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Affiliation(s)
- Lemya Boughrara
- Laboratoire de Chimie Physique Macromoléculaire, Département de Chimie, Université Oran1 Ahmed Ben Bella, B.P 1524, El-Menaouer 31000, Oran, Algeria.
| | - Fatima Zohra Sebba
- Laboratoire de Chimie Physique Macromoléculaire, Département de Chimie, Université Oran1 Ahmed Ben Bella, B.P 1524, El-Menaouer 31000, Oran, Algeria
| | - Houari Sebti
- Laboratoire de Chimie Physique Macromoléculaire, Département de Chimie, Université Oran1 Ahmed Ben Bella, B.P 1524, El-Menaouer 31000, Oran, Algeria
| | | | - Boumediene Bounaceur
- Laboratoire de Chimie Physique Macromoléculaire, Département de Chimie, Université Oran1 Ahmed Ben Bella, B.P 1524, El-Menaouer 31000, Oran, Algeria
| | - Seghier Ould Kada
- Laboratoire de Chimie Physique Macromoléculaire, Département de Chimie, Université Oran1 Ahmed Ben Bella, B.P 1524, El-Menaouer 31000, Oran, Algeria
| | - Farouk Zaoui
- Laboratoire de Chimie Physique Macromoléculaire, Département de Chimie, Université Oran1 Ahmed Ben Bella, B.P 1524, El-Menaouer 31000, Oran, Algeria.
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Sanchez-Ballester NM, Bataille B, Soulairol I. Sodium alginate and alginic acid as pharmaceutical excipients for tablet formulation: Structure-function relationship. Carbohydr Polym 2021; 270:118399. [PMID: 34364633 DOI: 10.1016/j.carbpol.2021.118399] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [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: 05/19/2021] [Revised: 06/17/2021] [Accepted: 06/28/2021] [Indexed: 12/11/2022]
Abstract
Alginic acid and its sodium salt are well-accepted pharmaceutical excipients fulfilling several roles in the development of solid oral dosage forms. Although they have attractive advantages as safety, abundance, relatively low cost and biodegradability, these natural polysaccharides possess a high variability that may limit their use as excipients for tablet formulation. Thus, to obtain robust formulations and high-quality drug products with consistent performance a complete understanding of the structure-property relationship becomes necessary as the structure of alginates affects both, technological and biopharmaceutical properties. This review compiles the compaction studies carried out that relate the structure of alginates to their mechanical and dissolution performances. The different analytical methods used to determine the chemical composition, primary structure and molecular weight distribution, major factors affecting the behavior of alginates in direct compression, are also exposed. Finally, different strategies reported to improve the properties of alginic acid as direct compression excipient are discussed.
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Affiliation(s)
| | - Bernard Bataille
- ICGM, University of Montpellier, CNRS, ENSCM, Montpellier, France
| | - Ian Soulairol
- ICGM, University of Montpellier, CNRS, ENSCM, Montpellier, France; Department of Pharmacy, Nîmes University Hospital, Nîmes, France
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Wang K, Wang B, Wang Z, Yang R. Alginic acid inhibits non-small cell lung cancer-induced angiogenesis via activating miR-506 expression. J Nat Med 2021; 75:553-564. [PMID: 33666835 DOI: 10.1007/s11418-021-01493-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [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: 11/21/2020] [Accepted: 02/05/2021] [Indexed: 12/24/2022]
Abstract
Angiogenesis is a key event in non-small cell lung cancer progression. Alginic acid (AA), a kind of naturally occurring polyuronic acid, is generally enriched in edible brown algae. Recent studies have uncovered its anti-anaphylactic and anti-inflammatory properties. However, the effects of AA on human malignancies remain unknown. Herein, efficient inhibition of AA on NSCLC-induced angiogenesis was observed with tube formation and xenograft models. Subsequent results indicated that AA downregulated the expression of VEGF-A, a key angiogenesis-inducing cytokine. In addition, AA downregulated STAT3, a transcriptional inducer of VEGF-A and increased non-coding RNA miR-506 expression, respectively. Furthermore, miR-506 directly modulated STAT3 relying on base pairing the 3'-UTR in STAT3 mRNA. We also found that abrogation of miR-506 abolished the inhibitory effect of AA on VEGF-A expression and NSCLC-induced angiogenesis. Finally, xenografts experiments also showed that oral administration of AA could significantly attenuate NSCLC angiogenesis, indicated by decreased micro-vessel density (MVD) and the MVD marker CD31 expression in xenografts tissues. Correspondingly, AA treatment also downregulated VEGF-A, STAT3 and increased miR-506 expression in xenografts samples, respectively. Taken together, these results suggested that AA could suppress NSCLC-induced angiogenesis via miR-506/STAT3/VEGF-A axis. .
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Affiliation(s)
- Keping Wang
- Department of Thoracic Surgery, Nanjing Chest Hospital, Nanjing Medical University Affiliated Brain Hospital (Thoracic Academy), No.215, Guangzhou Road, Gulou District, Nanjing, 210029, People's Republic of China
| | - Bin Wang
- Department of Thoracic Surgery, Nanjing Chest Hospital, Nanjing Medical University Affiliated Brain Hospital (Thoracic Academy), No.215, Guangzhou Road, Gulou District, Nanjing, 210029, People's Republic of China
| | - Zunqiao Wang
- Department of Thoracic Surgery, Nanjing Chest Hospital, Nanjing Medical University Affiliated Brain Hospital (Thoracic Academy), No.215, Guangzhou Road, Gulou District, Nanjing, 210029, People's Republic of China
| | - Rusong Yang
- Department of Thoracic Surgery, Nanjing Chest Hospital, Nanjing Medical University Affiliated Brain Hospital (Thoracic Academy), No.215, Guangzhou Road, Gulou District, Nanjing, 210029, People's Republic of China.
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Anghel N, Dinu MV, Zaltariov M, Pamfil D, Spiridon I. New cellulose-collagen-alginate materials incorporated with quercetin, anthocyanins and lipoic acid. Int J Biol Macromol 2021; 181:30-40. [PMID: 33771542 DOI: 10.1016/j.ijbiomac.2021.03.120] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2020] [Revised: 03/04/2021] [Accepted: 03/21/2021] [Indexed: 12/24/2022]
Abstract
Herein we present a new biomaterial based on cellulose, collagen and sodium alginate which served as a matrix for the incorporation of bioactive substances with antioxidant properties. Compared with pure cellulose hydrogels, the compressive strength and the elastic modulus of cellulose-collagen-alginate hydrogels were significantly enhanced, thus the compressive strength increased from 0.256 kPa to 6.91 kPa, while the elastic modulus increased from 0.0023 kPa to 0.115 kPa at 30% strain level. The release kinetic of all drugs through matrix components was done according to the Korsmeyer-Peppas model with a Fickian diffusion. The presence of bioactive principles, quercetin, lipoic acid and anthocyanins, gives biomaterials an antioxidant capacity on average 30% higher compared to the base matrix. The mechanical resistance, mucoadhesiveness, bioadhesiveness, release kinetic, and antioxidant capacity of active principles, recommend these biomaterials for the manufacture of transdermal drug delivery devices.
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Affiliation(s)
- Narcis Anghel
- "Petru Poni" Institute of Macromolecular Chemistry, Grigore Ghica-Vodă 41, 700487 Iași, Romania.
| | - Maria Valentina Dinu
- "Petru Poni" Institute of Macromolecular Chemistry, Grigore Ghica-Vodă 41, 700487 Iași, Romania
| | - Mirela Zaltariov
- "Petru Poni" Institute of Macromolecular Chemistry, Grigore Ghica-Vodă 41, 700487 Iași, Romania
| | - Daniela Pamfil
- "Petru Poni" Institute of Macromolecular Chemistry, Grigore Ghica-Vodă 41, 700487 Iași, Romania
| | - Iuliana Spiridon
- "Petru Poni" Institute of Macromolecular Chemistry, Grigore Ghica-Vodă 41, 700487 Iași, Romania
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Berardi A, Bauhuber S, Sawafta O, Warnke G. Alginates as tablet disintegrants: Understanding disintegration mechanisms and defining ranges of applications. Int J Pharm 2021; 601:120512. [PMID: 33766641 DOI: 10.1016/j.ijpharm.2021.120512] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [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: 02/01/2021] [Revised: 03/12/2021] [Accepted: 03/17/2021] [Indexed: 10/21/2022]
Abstract
Alginates are biopolymers that have been investigated for their use in food and medical fields. Minimal information is available regarding their potential application as tablet superdisintegrants. Here we studied the disintegration action of sodium alginate (SA), calcium alginate (CA) and alginic acid (AA). Initially, we characterised the swelling and wicking abilities and the disintegration mechanism of pure disintegrants. We found that the liquid uptake of both CA and AA is more swelling-driven in phosphate buffer and more wicking-driven in hydrochloric acid and water. CA acts by shape-recovery, AA by a combination of swelling and shape-recovery mechanisms. SA cannot be used as disintegrant due to gelling. In the second part of the paper, the disintegration time of formulations with different physico-chemical properties and different alginate concentrations (i.e. 4% and 10%) was measured, thus delivering a direct readout for the ranges of application of alginates as tablets disintegrants. The main observations are: i) CA and AA often provide very rapid disintegration, similarly to the superdisintegrants used as controls; ii) the action of CA is more susceptible to the medium conditions than AA; iii) CA underperforms in hard tablets containing a binder; iv) both CA and AA have slightly slower disintegration than other superdisintegrants in tablets containing a hydrophobic component. While the suitability of CA as a disintegrant is formulation- and medium- dependent, AA appears as a promising tablet superdisintegrant, particularly for the development of uncomplicated hydrophilic formulations for the nutraceutical and supplement industry, where natural ingredients are favoured.
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Affiliation(s)
- Alberto Berardi
- Department of Pharmaceutical Sciences and Pharmaceutics, Faculty of Pharmacy, Applied Science Private University, Amman 11931, Jordan.
| | - Sonja Bauhuber
- Technical Competence Center, JRS PHARMA GmbH & Co. KG, 73494 Rosenberg, Germany
| | - Obada Sawafta
- Department of Pharmaceutical Sciences and Pharmaceutics, Faculty of Pharmacy, Applied Science Private University, Amman 11931, Jordan
| | - Gernot Warnke
- Technical Competence Center, JRS PHARMA GmbH & Co. KG, 73494 Rosenberg, Germany
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Grządka E, Matusiak J, Godek E. Alginic acid as a stabilizer of zirconia suspensions in the presence of cationic surfactants. Carbohydr Polym 2020; 246:116634. [PMID: 32747269 DOI: 10.1016/j.carbpol.2020.116634] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [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: 04/04/2020] [Revised: 06/08/2020] [Accepted: 06/10/2020] [Indexed: 11/26/2022]
Abstract
The influence of hydrocarbon (CTAB), fluorocarbon (S-106-A) and silicone (C-Si) cationic surfactants: on stability, adsorption and electrokinetic properties of the alginic acid (AA)/zirconia (ZrO2) suspensions was studied. The results obtained from the spectrophotometric measurements indicate on very high effectiveness of the surfactants in stabilization of the studied systems. This is due to the formation of multimolecular complexes between alginic acid and the surfactants. The existence of these complexes was confirmed by the surface tension and the zeta potential measurements. Presented studies also enabled the estimation of the conditions under which the complexes are effectively created and the determination of their character. These findings were also confirmed by the adsorption data. Moreover, the surface charge density measurements proved that the adsorption of AA or the AA/surfactant complexes changes the structure of the electrical double layer. The presented results may find applications in the fields of functionalized materials.
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Affiliation(s)
- E Grządka
- Department of Radiochemistry and Environmental Chemistry, Faculty of Chemistry, Institute of Chemical Sciences, Maria Curie-Skłodowska University, M. Skłodowskiej - Curie 3 Sq., 20-031, Lublin, Poland.
| | - J Matusiak
- Department of Radiochemistry and Environmental Chemistry, Faculty of Chemistry, Institute of Chemical Sciences, Maria Curie-Skłodowska University, M. Skłodowskiej - Curie 3 Sq., 20-031, Lublin, Poland.
| | - E Godek
- Department of Radiochemistry and Environmental Chemistry, Faculty of Chemistry, Institute of Chemical Sciences, Maria Curie-Skłodowska University, M. Skłodowskiej - Curie 3 Sq., 20-031, Lublin, Poland.
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13
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Kim H, Yang S, Kim DH. One-pot conversion of alginic acid into furfural using Amberlyst-15 as a solid acid catalyst in γ-butyrolactone/water co-solvent system. Environ Res 2020; 187:109667. [PMID: 32442791 DOI: 10.1016/j.envres.2020.109667] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/13/2020] [Revised: 04/24/2020] [Accepted: 05/06/2020] [Indexed: 06/11/2023]
Abstract
One-pot conversion of alginic acid, which was derived from brown algae, to furfural was investigated using various solid acid catalysts. Among the solid acid catalysts tested, Amberlyst-15 showed the highest activity in furfural production in aqueous media. When the effect of reaction media was examined by applying various organic solvent mixtures, it was found that γ-butyrolactone/water co-solvent system was selected as the most appropriate system for the reaction. Maximum furfural yield of 32.2% was obtained using Amberlyst-15 in the γ-butyrolactone/H2O at 210 °C for 20 min. Catalyst showed gradual deactivation behavior as the reaction proceeded, although the catalyst recovered its activity upon the simple treatment with sulfuric acid. N2 adsorption-desorption experiments, Fourier-transform infrared spectroscopy (FT-IR), back titration, and CHNS analysis were applied to investigate the physicochemical property of post-reaction samples, confirming that the leaching of the active sulfonic acid group and decrease in acid density was the major cause of deactivation.
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Affiliation(s)
- Hyungjoo Kim
- School of Chemical and Biological Engineering, Institute of Chemical Process, Seoul National University, 1, Gwanak-ro, Gwanak-gu, Seoul, 08826, Republic of Korea
| | - Seungdo Yang
- School of Chemical and Biological Engineering, Institute of Chemical Process, Seoul National University, 1, Gwanak-ro, Gwanak-gu, Seoul, 08826, Republic of Korea
| | - Do Heui Kim
- School of Chemical and Biological Engineering, Institute of Chemical Process, Seoul National University, 1, Gwanak-ro, Gwanak-gu, Seoul, 08826, Republic of Korea.
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14
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Guo X, Wang Y, Qin Y, Shen P, Peng Q. Structures, properties and application of alginic acid: A review. Int J Biol Macromol 2020; 162:618-628. [PMID: 32590090 DOI: 10.1016/j.ijbiomac.2020.06.180] [Citation(s) in RCA: 102] [Impact Index Per Article: 25.5] [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: 01/16/2020] [Revised: 06/16/2020] [Accepted: 06/18/2020] [Indexed: 12/27/2022]
Abstract
Alginic acid is a natural polysaccharide, which has been widely concerned and applied due to its excellent water solubility, film formation, biodegradability and biocompatibility. This paper briefly describes the source, properties, structure and application of sodium alginate by summarizing and analyzing the current literature. This paper reviews the application of sodium alginate in the fields of food industry, catalyst, health, water treatment, packaging, immobilized cells, and looks forward to its application prospects.
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Affiliation(s)
- Xi Guo
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, PR China.
| | - Yan Wang
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, PR China
| | - Yimin Qin
- State Key Laboratory of Bioactive Seaweed Substances, Ministry of Agriculture Key Laboratory of Seaweed Fertilizers, Qingdao Bright Moon Seaweed Group Co., LTD, Qingdao Bright Moon Blue Ocean Bio-Tech Co., LTD, Qingdao 266400, PR China
| | - Peili Shen
- State Key Laboratory of Bioactive Seaweed Substances, Ministry of Agriculture Key Laboratory of Seaweed Fertilizers, Qingdao Bright Moon Seaweed Group Co., LTD, Qingdao Bright Moon Blue Ocean Bio-Tech Co., LTD, Qingdao 266400, PR China.
| | - Qiang Peng
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, PR China.
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15
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Hajifathaliha F, Mahboubi A, Mohit E, Bolourchian N, Khalaj V, Nematollahi L. Comparison of Linear Poly Ethylene Imine (LPEI) and Poly L-Lysine (PLL) in Fabrication of CHOK 1 Cell-Loaded Multilayer Alginate Microcapsules. Adv Pharm Bull 2020; 10:290-296. [PMID: 32373499 PMCID: PMC7191236 DOI: 10.34172/apb.2020.035] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2019] [Revised: 08/20/2019] [Accepted: 10/01/2019] [Indexed: 12/26/2022] Open
Abstract
Purpose: Poly l-lysine (PLL) has been introduced as a strengthening covering layer for alginate microcapsules which are the most convenient way for cell encapsulation. Some disadvantages of PLL such as high price and low biocompatibility have prompted scientists to find better alternatives. Linear poly ethylene imine (LPEI), thanks to its highly similar structure to PLL, could be considered as a proper cost-effective alternative. In this study LPEI and PLL were compared as covering layers of cell-loaded alginate-LPEI-alginate (cALA) and alginate-PLL-alginate (cAPA) microcapsules. Methods: In addition to the physico-mechanical properties, the encapsulation efficiency, cell survival post encapsulation, cell viability, and cellular metabolic activity within the microcapsules were evaluated using trypan blue, live/dead cell staining, and MTT test, respectively. Results: Physico-mechanical evaluation of the microcapsules revealed that the cell microencapsulation process did not affect their shape, size, and mechanical stability. Although the encapsulation efficiency for cALA and cAPA was not different (P >0.05), cell survival post encapsulation was higher in cALA than in cAPA (P<0.05) which could be the reason for the higher cell viability and also cellular metabolic activity within these microcapsules in comparison to cAPA. Conclusion: Here, based on these results, ALA could be introduced as a preferable alternative to APA for cell encapsulation.
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Affiliation(s)
- Fariba Hajifathaliha
- Food Safety Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
- Student Research Committee, Department of Pharmaceutics, School of Pharmacy, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Arash Mahboubi
- Food Safety Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
- Student Research Committee, Department of Pharmaceutics, School of Pharmacy, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Elham Mohit
- Department of Pharmaceutical Biotechnology, School of Pharmacy, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Noushin Bolourchian
- Student Research Committee, Department of Pharmaceutics, School of Pharmacy, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Vahid Khalaj
- Biotechnology Research Center, Pasteur Institute of Iran, Tehran, Iran
| | - Leila Nematollahi
- Biotechnology Research Center, Pasteur Institute of Iran, Tehran, Iran
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16
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Lee SS, Kim H, Sohn DK, Eom JB, Seo YS, Yoon HM, Choi Y. Indocyanine green-loaded injectable alginate hydrogel as a marker for precision cancer surgery. Quant Imaging Med Surg 2020; 10:779-788. [PMID: 32269936 DOI: 10.21037/qims.2020.02.24] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Background Accurate identification of tumor sites and boundaries is of paramount importance during minimally invasive surgery. Although laparoscopic resection is being increasingly and widely performed for early gastric and colorectal cancers, the detection of tumors located inside the stomach and intestine is difficult owing to the lack of tactile sensation. Here, we propose the application of an indocyanine green (ICG)-loaded alginate hydrogel system as a fluorescence surgical marker for precise laparoscopic operations. Methods A physical complex of ICG and human serum albumin (HSA) was mixed with sodium alginate to form an injectable hydrogel system. Calcium carbonate and D-gluconic acid (GA) were added to the gel to control its strength and gelation time, respectively. The optimal conditions for the preparation of injectable hydrogels were determined by analyzing the fluorescence spectra and sol-gel transition time of the prepared samples at various concentrations and compositions. Next, the aqueous solutions of ICG, ICG-HSA, and ICG-HSA-loaded alginate were subcutaneously injected into nude mice (three mice per group), and near-infrared (NIR) fluorescence images of the mice (λex. =780 nm, λem. =845 nm) were obtained at different points in time for 8 days. Then, fluorescence intensities at the injection sites, target-to-background ratio, and areas of ICG fluorescence were analyzed. Finally, the potential utility of ICG-HSA-loaded alginate hydrogel as a surgical marker was evaluated in a porcine model. The ICG-HSA-loaded alginate solution was injected into three sites in the submucosal space of the porcine stomach via a catheter. A fluorescent laparoscopic system was installed on the abdomen of the pig 3 days post-injection, and the fluorescence signal generated from the fluorescence surgical marker located inside the stomach was evaluated using the fluorescence laparoscope system (λex. =785 nm, λem. =805 nm). Results The optimal concentration of ICG-HSA complex was determined to be 30 µM, and maximum fluorescence intensity of the complex was obtained at a 1:1 mole ratio of HSA to ICG. The subcutaneous injection of ICG or ICG-HSA solution in mice resulted in the rapid spread of the fluorescence signal around the injection site in 3 h, and a weak fluorescence was detected at the injection site 24 h post-injection. In contrast, the fluorescence detection time was effectively prolonged up to 96 h post-injection in the case of ICG-HSA-loaded alginate gel, while diffusion of the injected ICG from the injection site was effectively prevented. In the laparoscopic operation, injection sites of the hydrogel in porcine stomach could be accurately detected in real time even after 3 days. Conclusions This alginate hydrogel system may be potentially useful as an effective surgical marker in terms of accuracy and persistence for laparoscopic operation.
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Affiliation(s)
- Seon Sook Lee
- Research Institute, National Cancer Center, Goyang, Republic of Korea
| | - Hyunjin Kim
- Research Institute, National Cancer Center, Goyang, Republic of Korea
| | - Dae Kyung Sohn
- Center for Colorectal Cancer, National Cancer Center, Goyang, Republic of Korea
| | - Joo Beom Eom
- College of Medicine, Dankook University, Cheonan, Republic of Korea
| | - Young Seok Seo
- R&D Center, Wontech Co., Ltd., Daejeon, Republic of Korea
| | - Hong Man Yoon
- Center for Gastric Cancer, National Cancer Center, Goyang, Republic of Korea
| | - Yongdoo Choi
- Research Institute, National Cancer Center, Goyang, Republic of Korea
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17
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Zhang R, Zhang X, Tang Y, Mao J. Composition, isolation, purification and biological activities of Sargassum fusiforme polysaccharides: A review. Carbohydr Polym 2020; 228:115381. [PMID: 31635744 DOI: 10.1016/j.carbpol.2019.115381] [Citation(s) in RCA: 134] [Impact Index Per Article: 33.5] [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: 06/27/2019] [Revised: 09/24/2019] [Accepted: 09/24/2019] [Indexed: 01/10/2023]
Abstract
Sargassum fusiforme polysaccharides, acidic water-soluble polysaccharides extract from Sargassum fusiforme, are mainly composed of alginic acid, fucoidan and laminaran. Alginic acid is carboxyl-containing polysaccharide formed by joining β-D-mannuronic acid and α-L-guluronic acid through β-(1→4)/α-(1→4) glycosidic bond. Fucoidan, a natural water-soluble sulfated heteropolysaccharide with fucose and sulfuric acid groups as the core structure, is mainly linked by L-fucose through α-(1→3) glycosidic bond and has the strongest biological activity. Laminaran is mainly composed of β-D-glucose through β-(1→3) glycosidic bond linkage. Sargassum fusiforme polysaccharides have a variety of pharmacological activities, including antioxidant, anti-tumor, promoting immunity, anti-aging, prompting bone growth, lowering blood glucose, anti-coagulation, anti-virus, anti-bacteria, anti-fatigue, promoting growth and development, and skin protection. These activities are closely related to the functions of fucoidan in Sargassum fusiforme polysaccharides, which fucoidan is able to strengthen immune system and antioxidation in human body. In this review, the composition, the isolation and purification, and the biological activities of Sargassum fusiforme polysaccharides are discussed and can bereference for further study.
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Affiliation(s)
- Rui Zhang
- School of Pharmacy, Shandong University of Traditional Chinese Medicine, Jinan, 250355, China; Experimental Center, Shandong University of Traditional Chinese Medicine, Jinan, 250355, China
| | - Xinxin Zhang
- School of Pharmacy, Shandong University of Traditional Chinese Medicine, Jinan, 250355, China
| | - Yingxue Tang
- School of Chinese Medicine, Shandong University of Traditional Chinese Medicine, Jinan, 250355, China
| | - Jinlong Mao
- School of Pharmacy, Shandong University of Traditional Chinese Medicine, Jinan, 250355, China.
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18
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Vaid U, Mittal S, Babu JN, Kumar R. Amido-amine derivative of alginic acid (AmAA) for enhanced adsorption of Pb(II) from aqueous solution. Int J Biol Macromol 2020; 147:499-512. [PMID: 31917986 DOI: 10.1016/j.ijbiomac.2020.01.040] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [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: 09/02/2019] [Revised: 12/12/2019] [Accepted: 01/05/2020] [Indexed: 01/03/2023]
Abstract
The present work reports the alternate synthesis of amido-amine derivative of alginic acid (AmAA) with high degree of functionalization. The AmAA have been characterized for percentage functionalization, functional group change, surface morphology and thermal decomposition behavior. The results indicate that the amido-amine derivatisation of alginic acid (AA) with >95% functionalization, significantly improves its Pb(II) adsorption efficiency (395.72 mg/g to 535.87 mg/g) over the AA. The equilibrium and kinetic studies showed that Langmuir and Freundlich adsorption isotherm models fitted well to the experimental data, and these followed pseudo-second order kinetic model. The FTIR (Fourier transform infrared spectroscopy) and 13C CP-MAS NMR (Cross-polarization magic angle spinning carbon-13 solid state nuclear magnetic resonance spectroscopy) analysis revealed that Pb(II) binds to the carboxyl group in case of AA and to the carbonyl & amine group in case of AmAA, which leads to increase in its adsorption efficiency. The study concludes that the functionalization of amido-amine on AA improves its adsorptive efficiency for Pb(II) from aqueous medium.
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Affiliation(s)
- Upma Vaid
- Department of Environmental Science and Technology, School of Environment and Earth Sciences, Central University of Punjab, Bathinda, Punjab 151001, India
| | - Sunil Mittal
- Department of Environmental Science and Technology, School of Environment and Earth Sciences, Central University of Punjab, Bathinda, Punjab 151001, India.
| | - J Nagendra Babu
- Department of Chemistry, School of Basic & Applied Sciences, Central University of Punjab, Bathinda, Punjab 151001, India
| | - Ravishankar Kumar
- Department of Environmental Science and Technology, School of Environment and Earth Sciences, Central University of Punjab, Bathinda, Punjab 151001, India
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19
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Hajifathaliha F, Mahboubi A, Nematollahi L, Mohit E, Bolourchian N. Comparison of different cationic polymers efficacy in fabrication of alginate multilayer microcapsules. Asian J Pharm Sci 2018; 15:95-103. [PMID: 32175021 PMCID: PMC7066046 DOI: 10.1016/j.ajps.2018.11.007] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2018] [Revised: 11/06/2018] [Accepted: 11/21/2018] [Indexed: 12/26/2022] Open
Abstract
In past decades, alginate-based multilayer microcapsules have been given important attention in various pharmaceutical investigations. Alginate-poly l lysine-alginate (APA) is studied the most. Due to the similarity between the structure of polyethyleneimine (PEI) and poly-L-lysine (PLL) and also lower price of PEI than PLL, this study was conducted to compare the efficacy of linear (LPEI) and branch (BPEI) forms of PEI with PLL as covering layers in fabrication of microcapsules. The microcapsules were fabricated using electrostatic bead generator and their shape/size, surface roughness, mechanical strength, and interlayer interactions were also investigated using optical microscopy, AFM, explosion test and FTIR, respectively. Furthermore, cytotoxicity was evaluated by comparing the two anionic final covering layers alginate (Alg) and sodium cellulose sulphate (NCS) using MTT test. BPEI was excluded from the rest of the study due to its less capacity to strengthen the microcapsules and also the aggregation of the resultant alginate-BPEI-alginate microcapsules, while LPEI showed properties similar to PLL. MTT test also showed that NCS has no superiority over Alg as final covering layer. Therefore, it is concluded that, LPEI could be considered as a more cost effective alternative to PLL and a promising subject for future studies.
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Affiliation(s)
- Fariba Hajifathaliha
- Food Safety Research Center, Shahid Beheshti University of Medical Sciences, Tehran 1991953381, Iran.,Department of Pharmaceutics, School of Pharmacy, Shahid Beheshti University of Medical Sciences, Tehran 1991953381, Iran
| | - Arash Mahboubi
- Food Safety Research Center, Shahid Beheshti University of Medical Sciences, Tehran 1991953381, Iran.,Department of Pharmaceutics, School of Pharmacy, Shahid Beheshti University of Medical Sciences, Tehran 1991953381, Iran
| | - Leila Nematollahi
- Biotechnology Research Center, Pasteur Institute of Iran, Tehran 1316943551, Iran
| | - Elham Mohit
- Department of Pharmaceutical Biotechnology, School of Pharmacy, Shahid Beheshti University of Medical Sciences, Tehran 1991953381, Iran
| | - Noushin Bolourchian
- Department of Pharmaceutics, School of Pharmacy, Shahid Beheshti University of Medical Sciences, Tehran 1991953381, Iran
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20
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Christensen BE, Strand SP, Basset C, Kristiansen KA, Ulset AST, Ballance S, Granum PE. Macromolecular acidic coating increases shelf life by inhibition of bacterial growth. Int J Food Microbiol 2018; 285:136-143. [PMID: 30121468 DOI: 10.1016/j.ijfoodmicro.2018.08.001] [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: 10/20/2017] [Revised: 06/18/2018] [Accepted: 08/02/2018] [Indexed: 11/17/2022]
Abstract
The sensitivity of microorganisms to low pH can be utilized in food protection by preparing coatings based on macromolecular acids. Due to limited diffusivity of macromolecules low pH occurs primarily at the surface, while the interior parts of the food remain unaffected. This principle is demonstrated using food approved alginic acid in various types of coatings (aqueous, emulsions, dispersions, dry coating) on a wide range of foods including meat, fish, chicken, shrimp and boiled rice. Significant delay or inhibition of the natural flora is generally demonstrated, particularly when exposed to 'temperature abuse'. Specifically, we show that the coatings reduce or inhibit regrowth of pathogens (Bacillus cereus, B. weihenstephanensis, Listeria monocytogenes serotype 1 and Staphylococcus aureus). In special cases like boiled rice, alginic acid may largely replace acetic acid for acidification and preservation, as demonstrated studying regrowth of added spores of B. cereus. Most formulations allow easy removal prior to further processing (cooking, frying). Temporary side effects such as 'acid cooking' obtained for high acid concentrations on sensitive surfaces (e.g. salmon) disappear during processing, recovering the normal taste and texture. The coating is hence suitable for a large variety of foods.
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Affiliation(s)
- Bjørn E Christensen
- NOBIPOL, Department of Biotechnology and Food Science, NTNU - Norwegian University of Science and Technology, NO-7491 Trondheim, Norway.
| | - Sabina P Strand
- NOBIPOL, Department of Biotechnology and Food Science, NTNU - Norwegian University of Science and Technology, NO-7491 Trondheim, Norway
| | - Coraline Basset
- Department of Food Safety and Infection Biology, NMBU - Norwegian University of Life Sciences, N-0033 Oslo, Norway; Norwegian Institute of Public Health, PO Box 4404, Nydalen, N-0403 Oslo, Norway
| | - Kåre A Kristiansen
- NOBIPOL, Department of Biotechnology and Food Science, NTNU - Norwegian University of Science and Technology, NO-7491 Trondheim, Norway
| | - Ann-Sissel T Ulset
- NOBIPOL, Department of Biotechnology and Food Science, NTNU - Norwegian University of Science and Technology, NO-7491 Trondheim, Norway
| | - Simon Ballance
- NOBIPOL, Department of Biotechnology and Food Science, NTNU - Norwegian University of Science and Technology, NO-7491 Trondheim, Norway
| | - Per Einar Granum
- Department of Food Safety and Infection Biology, NMBU - Norwegian University of Life Sciences, N-0033 Oslo, Norway
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21
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Ravera M, Gabano E, Bonzani D, Zanellato I, Arrais A, Cantamessa S, Biggiogera M, Osella D. Hybrid inorganic (nonporous silica)/organic (alginate) core-shell platform for targeting a cisplatin-based Pt(IV) anticancer prodrug. J Inorg Biochem 2018; 189:185-91. [PMID: 30312905 DOI: 10.1016/j.jinorgbio.2018.09.019] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2018] [Revised: 09/27/2018] [Accepted: 09/28/2018] [Indexed: 01/08/2023]
Abstract
Nonporous silica nanoparticles with an external shell containing the 3‑aminopropyl arm (SiNP) were further decorated with alginic acid (SiNP-ALG) as a potential biocompatible delivery system for Pt antitumor agents. Such particles were coupled with the prodrug (OC‑6‑44)‑acetato(β‑alaninato)diamminedichloridoplatinum(IV), 1, through the formation of amide bonds between the pendant carboxylate groups on SiNP-ALG and the free amino group of the complex. Cytosol extracted from tumor cells was able to quickly and efficiently reduce the Pt(IV) prodrug, and produces the active metabolite cisplatin. SiNP-ALG-Pt conjugate was more active than both cisplatin and 1, due to its more efficient cell uptake, whereas the SiNP-ALG unplatinated nanoparticles were deprived of any nonspecific toxicity.
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22
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Hong SH, Li Y, Eom JB, Choi Y. Responsive alginate-cisplatin nanogels for selective imaging and combined chemo/radio therapy of proliferating macrophages. Quant Imaging Med Surg 2018; 8:733-742. [PMID: 30306054 DOI: 10.21037/qims.2018.09.01] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Background Atherosclerosis is a major global health concern. Targeting macrophages is hypothesized as an alternative treatment for atherosclerosis. Methods We synthesized alginate-based cisplatin-loaded nanogels (TANgel) as a pH-responsive drug-releasing theranostic nanoplatform for macrophage cells. Carboxylic acid groups of alginic acid were modified with iminodiacetic acid (IDA) to enhance chelation of platinum ions. The near infrared (NIR) fluorophore ATTO655 was conjugated to the modified alginic acid. Cisplatin was used as an antiproliferation drug and as a crosslinking agent between alginate molecules to form TANgel. Release behavior of cisplatin from TANgel was analyzed under different pH conditions. Cellular uptake and therapeutic efficacy of TANgel were tested in the macrophage cell line J774A.1 and normal human cell lines such as HDMVECn. Results The nanogel had a narrow size distribution of approximately 100 nm. The nanogel showed highly pH-responsive drug release behavior. All incorporated cisplatin was released at pH 5 within 48 h, while less than 15% was released at pH 7.4. The nanogel was preferentially taken up by J774A.1 cells compared to normal human cells, enabling selective NIR fluorescence imaging and chemotherapy of macrophage cells. In addition, the nanogel formulation lowered the therapeutic concentration of the drug with and without low dose radiation therapy (RT) compared to the free drug form. Conclusions This nanogel system may have potential utility for selective NIR fluorescence imaging and combined chemo/radio therapy of proliferating macrophage cells in atherosclerotic regions, allowing for reduction of systemic toxicity.
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Affiliation(s)
- Suk Ho Hong
- Biomarker Branch, National Cancer Center, Goyang-si, Gyeonggi-do, Korea
| | - Yan Li
- Biomarker Branch, National Cancer Center, Goyang-si, Gyeonggi-do, Korea
| | - Joo Beom Eom
- Medical Photonics Research Center, Korea Photonics Technology Institute (KOPTI), Gwangju, Korea
| | - Yongdoo Choi
- Biomarker Branch, National Cancer Center, Goyang-si, Gyeonggi-do, Korea
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23
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Krawczyk T, Zalewski M, Janeta A, Hodurek P. SEC Separation of Polysaccharides Using Macroporous Spherical Silica Gel as a Stationary Phase. Chromatographia 2018; 81:1365-1372. [PMID: 30294004 PMCID: PMC6153982 DOI: 10.1007/s10337-018-3582-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2018] [Revised: 07/16/2018] [Accepted: 07/26/2018] [Indexed: 01/01/2023]
Abstract
Abstract Meso- and macroporous spherical silica gels of pore sizes in the range of 60–1000 Å and 40–75 µm particle size were investigated as a stationary phase for the separation and purification of polysaccharides and poly(ethylene glycols) (PEGs) of various MWs using an aqueous mobile phase. Sephadex and Bio-Gel were used for comparison as the most common stationary phases for similar purposes. The separation of dextrans of a mean MW = 31 kDa from small molecules (NaCl) was possible with SiO2 with a pore size of 60–300 Å, but the observed efficiencies of a column of the same size were lower comparing with Sephadex or Bio-Gel. In the case of oxidized alginic acid only SiO2 of the 60 Å pore size was suitable, while Sephadex, Bio-Gel and other investigated silicas were not efficient. Sephadex and 300–1000 Å SiO2 offered the possibility of dividing dextrans with MW within the range of 1 MDa–10 kDa into fractions of various MWs, while Bio-Gel and 60 Å SiO2 were not suitable. The investigated silica gels strongly adsorbed PEGs of MW 2–20 kDa. The amount adsorbed decreased with the increase of pore size and they were not useful as a stationary phase for this class of polymers. An advantage of SiO2 of the investigated particle size was a very low back pressure comparing with Sephadex. A considerably lower price of silica offers time- and cost-efficient separation of polysaccharides. Graphical Abstract ![]()
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Affiliation(s)
- Tomasz Krawczyk
- 1Department of Chemical Organic Technology and Petrochemistry, Faculty of Chemistry, Silesian University of Technology, ul. Krzywoustego 4, 44-100 Gliwice, Poland
| | - Mariusz Zalewski
- 1Department of Chemical Organic Technology and Petrochemistry, Faculty of Chemistry, Silesian University of Technology, ul. Krzywoustego 4, 44-100 Gliwice, Poland
| | - Anna Janeta
- 1Department of Chemical Organic Technology and Petrochemistry, Faculty of Chemistry, Silesian University of Technology, ul. Krzywoustego 4, 44-100 Gliwice, Poland
| | - Paweł Hodurek
- 2Wroclaw Medical University, Wybrzeże L. Pasteura 1, 50-367 Wrocław, Poland
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Soulairol I, Sanchez-Ballester NM, Aubert A, Tarlier N, Bataille B, Quignard F, Sharkawi T. Evaluation of the super disintegrant functionnalities of alginic acid and calcium alginate for the design of orodispersible mini tablets. Carbohydr Polym 2018; 197:576-585. [PMID: 30007650 DOI: 10.1016/j.carbpol.2018.06.002] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [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: 12/04/2017] [Revised: 05/22/2018] [Accepted: 06/01/2018] [Indexed: 10/14/2022]
Abstract
This study explores the influence of different synthesis methods and drying conditions in the preparation of sodium alginate-derivate xerogels presenting interesting disintegrant functionalities. Xerogels containing alginic acid (AA) or calcium alginate (CaA) and a mixture of both, AA/CaA, were isolated using two different drying methods oven and rotary evaporation. AA showed the best wettability behavior, in contrast to the rigid crosslinked CaA structure which showed a limited rate of water penetration. Interestingly, xerogel containing AA dried in the oven showed an enhanced maximum water uptake. Oven drying seems to favor the isolation of materials presenting good tabletability. Compression parameters of the formulations (tensile strength, elastic energy and porosity) were not affected by their presence (5%) in the design of OroDispersible Mini Tablets. In vitro disintegration results highlighted the water wicking as the key factor leading the disintegration mechanism of these materials. These results show promise of potential properties for the development of super disintegrant excipients.
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Affiliation(s)
- Ian Soulairol
- UMR 5253, Equipe MACS, ICGM, University of Montpellier, Montpellier, France; Department of Pharmacy, Nîmes University Hospital, Nimes, France.
| | | | - Adrien Aubert
- UMR 5253, Equipe MACS, ICGM, University of Montpellier, Montpellier, France
| | - Nicolas Tarlier
- UMR 5253, Equipe MACS, ICGM, University of Montpellier, Montpellier, France
| | - Bernard Bataille
- UMR 5253, Equipe MACS, ICGM, University of Montpellier, Montpellier, France
| | - Françoise Quignard
- UMR 5253, Equipe MACS, ICGM, Ecole Nationale Supérieur de Chimie de Montpellier, Montpellier, France
| | - Tahmer Sharkawi
- UMR 5253, Equipe MACS, ICGM, University of Montpellier, Montpellier, France
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Kim YS, Cho SW, Ko B, Shin J, Ahn CW. Alginate-Catechol Cross-Linking Interferes with Insulin Secretion Capacity in Isolated Murine Islet Cells. Diabetes Metab J 2018; 42:164-168. [PMID: 29676546 PMCID: PMC5911520 DOI: 10.4093/dmj.2018.42.2.164] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/01/2017] [Accepted: 12/29/2017] [Indexed: 12/11/2022] Open
Abstract
Over the past three decades, human pancreatic islet isolation and transplantation techniques have developed as a routine clinical procedure for selected patients with type 1 diabetes mellitus. However, due to the donor shortage and required chronic systemic immunosuppression, the widespread application of islet transplantation is limited. To overcome these limitations, providing a physical barrier to transplanted islet cells with encapsulating biomaterial has emerged as a promising approach to enhance engraftment and promote islet survival post-transplantation. Alginate has been considered to be a reliable biomaterial, as it enhances islet survival and does not hamper hormone secretion. Alginate-catechol (Al-CA) hydrogel was reported to provide high mechanical strength and chemical stability without deformation over a wide range of pH values. In this study, we, demonstrated, for the first time in the literature, that encapsulation of murine pancreatic islet cells with Al-CA hydrogel does not induce cytotoxicity ex vivo for an extended period; however, it does markedly abate glucose-stimulated insulin secretion. Catechol should not be considered as a constituent for alginate gelation for encapsulating islet cells in the application of islet transplantation.
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Affiliation(s)
- Yu Sik Kim
- Severance Institute for Vascular and Metabolic Research, Yonsei University College of Medicine, Seoul, Korea
| | - Seung Woo Cho
- Department of Biotechnology, Yonsei University, Seoul, Korea
| | - Bomin Ko
- Biomedical Research Center, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
| | - Jisoo Shin
- Department of Biotechnology, Yonsei University, Seoul, Korea
| | - Chul Woo Ahn
- Severance Institute for Vascular and Metabolic Research, Yonsei University College of Medicine, Seoul, Korea
- Department of Internal Medicine, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Korea.
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26
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Fernando IPS, Sanjeewa KKA, Kim SY, Lee JS, Jeon YJ. Reduction of heavy metal (Pb 2+) biosorption in zebrafish model using alginic acid purified from Ecklonia cava and two of its synthetic derivatives. Int J Biol Macromol 2018; 106:330-337. [PMID: 28827136 DOI: 10.1016/j.ijbiomac.2017.08.027] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [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: 02/06/2017] [Revised: 07/11/2017] [Accepted: 08/03/2017] [Indexed: 01/30/2023]
Abstract
Heavy metal contamination has become a major problem that causes severe environmental and health issues due to their biosorption, bioaccumulation, and toxicity. This study was designed to evaluate heavy metal chelating abilities of alginic acid (AA) extracted from the brown seaweed Ecklonia cava and two of its derivatives prepared by the partial oxidation of the 2° OH groups (OAA) and partial carboxylation of the monomeric units (CAA) upon reducing the heavy metal biosorption in zebrafish (Danio rerio) modal. Metal ions were quantified using ICP-OES and biopolymers were characterized by FTIR and XRD analysis. All investigated biopolymers indicated potential ability for chelating Pb2+, Cu2+, Cd2+, As3+, and Ag+. The sorption capacities were in the order of CAA>OAA>AA. All biopolymers indicated a comparatively higher chelation towards Pb2+. AA, OAA, and CAA could effectively reduce Pb2+ induced toxicity and Pb2+ stress-induced ROS production in zebrafish embryos. Besides, they could reduce the biosorption of Pb2+ in adult zebrafish which could lead to bioaccumulation. Since alginic acid purified from E. cava and its derivatives could be utilized as seaweed derived biopolymers to purify heavy metals contaminated water and as a dietary supplement to reduce heavy metal biosorption in organisms.
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Affiliation(s)
- I P Shanura Fernando
- Department of Marine Life Science, Jeju National University, Jeju 690-756, Republic of Korea
| | - K K Asanka Sanjeewa
- Department of Marine Life Science, Jeju National University, Jeju 690-756, Republic of Korea
| | - Seo-Young Kim
- Department of Marine Life Science, Jeju National University, Jeju 690-756, Republic of Korea
| | - Jung-Suck Lee
- Research Center for Industrial Developement of Seafood, Gyeongsang National University, Republic of Korea.
| | - You-Jin Jeon
- Department of Marine Life Science, Jeju National University, Jeju 690-756, Republic of Korea.
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Taubner T, Marounek M, Synytsya A. Preparation and characterization of amidated derivatives of alginic acid. Int J Biol Macromol 2017; 103:202-207. [PMID: 28526341 DOI: 10.1016/j.ijbiomac.2017.05.070] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [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: 02/06/2017] [Revised: 04/12/2017] [Accepted: 05/15/2017] [Indexed: 10/19/2022]
Abstract
Alginic acid is a suitable material for modification to prepare new derivatives because of presence of its carboxyl groups. The high content of carboxyl groups over the entire length of its chain renders it an easily modifiable material with a possibility of achieving a high degree of substitution in the prepared derivatives. The salt of alginic acid (sodium alginate) is readily commercially available and is widely used in many branches of chemistry. Alginic acid was thus selected as the substrate for amidation. The amidation used two-steps: methyl esterification followed by amino-de-alkoxylation. The aim of this study was to prepare highly substituted derivatives with different polysaccharide chain characteristics. As such, the alginic acid was modified by the two-step amidation based on the esterification of the alginic acid carboxyl groups by reaction with methanol and further amino-de-alkoxylation (aminolysis) of the obtained methyl ester with amidation reagents (n-alkylamines, hydrazine and hydroxylamine). The purity and substitution degree of the prepared derivatives were monitored by vibration spectroscopic methods (FTIR and FT Raman) and organic elemental analysis. These analytical methods confirmed the preparation of highly or moderately substituted N-alkylamides, hydrazide and hydroxamic acid of alginic acid.
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Affiliation(s)
- Tomáš Taubner
- Institute of Animal Science, VÚŽV v.v.i., Přátelství 815, Prague 22 Uhříněves, 104 00, Czech Republic.
| | - Milan Marounek
- Institute of Animal Science, VÚŽV v.v.i., Přátelství 815, Prague 22 Uhříněves, 104 00, Czech Republic
| | - Andriy Synytsya
- Department of Carbohydrates and Cereals, ICT Prague, Technická 5, Prague 6 Dejvice, 166 28, Czech Republic
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Matsumoto Y, Ishii D, Iwata T. Synthesis and characterization of alginic acid ester derivatives. Carbohydr Polym 2017; 171:229-35. [PMID: 28578958 DOI: 10.1016/j.carbpol.2017.05.001] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2017] [Revised: 04/14/2017] [Accepted: 05/01/2017] [Indexed: 11/20/2022]
Abstract
Esters derivatives of alginic acid (Alg) were prepared in carboxylic acid/carboxylic acid anhydrides system by using aqueous perchloric acid as the catalyst. Degree of substitution of hydroxyl group of Alg was estimated to be 2, showing that the hydroxyl group of Alg was fully esterified. Alg acid esters showed the solubility to common organic solvents such as acetone and chloroform. In particular, alginic acid hexanoate formed self-standing solvent-cast film, although the film showed brittle mechanical behavior. Furthermore, Alg esters showed glass transition temperature (Tg) in a temperature range between 100 and 200°C, that is in the same range as the conventional synthetic amorphous polymers. It was also shown that the Tg gradually lowered with the increasing acyl side chain length. These results show that Alg esters are plastic materials with tunable organosolubility and thermal properties.
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Isobe T, Kofuji K, Okada K, Fujimori J, Murata M, Shigeyama M, Hanioka N, Murata Y. Adsorption of histones on natural polysaccharides: The potential as agent for multiple organ failure in sepsis. Int J Biol Macromol 2015; 84:54-7. [PMID: 26627603 DOI: 10.1016/j.ijbiomac.2015.11.029] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [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: 09/13/2015] [Revised: 10/29/2015] [Accepted: 11/12/2015] [Indexed: 11/24/2022]
Abstract
Histones are intracellular proteins that are structural elements of nuclear chromatin and regulate gene transcription. However, the extracellular histones released in response to bacterial challenges have been identified as mediators contributing to endothelial dysfunction, organ failure, and death during sepsis. In the present study, the adsorption of histones as well as plasma proteins (α1-acid glycoprotein (AGP), albumin, and γ-globulin) on alginic acid, pectin, dextran, and chitosan was examined in order to evaluate the potential of natural polysaccharides as therapeutic agents for multiple organ failure in sepsis. Alginic acid and pectin strongly adsorbed histones, whereas the adsorption abilities of dextran and chitosan toward histones were very low or negligible. Among the natural polysaccharides examined, only alginic acid did not adsorb any of the plasma proteins. These results demonstrated that alginic acid strongly adsorbed histones, but not plasma proteins; therefore, it has potential as a candidate drug for the treatment of multiple organ failure in sepsis.
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Affiliation(s)
- Takashi Isobe
- Department of Biochemical Toxicology, Yokohama University of Pharmacy, 601 Matano-cho, Totsuka-ku, Yokohama 245-0066, Japan.
| | - Kyoko Kofuji
- Faculty of Pharmaceutical Sciences, Hokuriku University, Ho-3, Kanagawa-machi, Kanazawa 920-1181, Japan
| | - Kenji Okada
- Department of Clinical Pharmacy, Yokohama University of Pharmacy, 601 Matano-cho, Totsuka-ku, Yokohama 245-0066, Japan
| | - Junya Fujimori
- Department of Clinical Pharmacy, Yokohama University of Pharmacy, 601 Matano-cho, Totsuka-ku, Yokohama 245-0066, Japan
| | - Mikio Murata
- Department of Clinical Pharmacy, Yokohama University of Pharmacy, 601 Matano-cho, Totsuka-ku, Yokohama 245-0066, Japan
| | - Masato Shigeyama
- Department of Clinical Pharmacy, Yokohama University of Pharmacy, 601 Matano-cho, Totsuka-ku, Yokohama 245-0066, Japan
| | - Nobumitsu Hanioka
- Department of Biochemical Toxicology, Yokohama University of Pharmacy, 601 Matano-cho, Totsuka-ku, Yokohama 245-0066, Japan
| | - Yoshifumi Murata
- Faculty of Pharmaceutical Sciences, Hokuriku University, Ho-3, Kanagawa-machi, Kanazawa 920-1181, Japan
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Zare EN, Lakouraj MM, Mohseni M, Motahari A. Multilayered electromagnetic bionanocomposite based on alginic acid: Characterization and biological activities. Carbohydr Polym 2015; 130:372-80. [PMID: 26076638 DOI: 10.1016/j.carbpol.2015.05.020] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [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: 03/16/2015] [Revised: 04/29/2015] [Accepted: 05/05/2015] [Indexed: 11/26/2022]
Abstract
Poly(aniline-co-pyrrole)@Fe3O4@alginic acid (PACP@Fe3O4@AA) bionanocomposite was synthesized by a two-step method. In the first step, the AA@Fe3O4 nanocomposite was synthesized via the in-situ co-precipitation technique. In the second step, the PACP@Fe3O4@AA bionanocomposite was synthesized through the emulsion polymerization. Several techniques such as Fourier transform infrared spectroscopy, X-ray diffraction, ultraviolet visible spectroscopy, scanning electron microscopy, and thermogravimetric analysis were utilized for the characterization of the synthesized materials. The presence of AA@Fe3O4 in the bionanocomposite enhanced the electrical conductivity as well as the thermal stability of the PACP@Fe3O4@AA bionanocomposite. The scanning electron micrograph of the PACP@Fe3O4@AA bionanocomposite demonstrated a nanosphere structure. The vibrating sample magnetometer analysis displayed that both AA@Fe3O4 and PACP@Fe3O4@AA bionanocomposites were super-paramagnetic at room temperature. The PACP@Fe3O4@AA bionanocomposite had good antioxidant and antibacterial activities. Furthermore, a synergistic effect was observed for the antifungal activity.
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Affiliation(s)
- Ehsan Nazarzadeh Zare
- Polymer Research Laboratory, Department of Organic-Polymer Chemistry, Faculty of Chemistry, University of Mazandaran, PO Box 47416-95447, Babolsar, Iran.
| | - Moslem Mansour Lakouraj
- Polymer Research Laboratory, Department of Organic-Polymer Chemistry, Faculty of Chemistry, University of Mazandaran, PO Box 47416-95447, Babolsar, Iran
| | - Mojtaba Mohseni
- Department of Microbiology, Faculty of Basic Science, University of Mazandaran, Babolsar, Iran
| | - Ahmad Motahari
- Department of Physical Chemistry, Faculty of Chemistry, University of Mazandaran, Babolsar, Iran
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Yazdani P, Zamani A, Karimi K, Taherzadeh MJ. Characterization of Nizimuddinia zanardini macroalgae biomass composition and its potential for biofuel production. Bioresour Technol 2015; 176:196-202. [PMID: 25461003 DOI: 10.1016/j.biortech.2014.10.141] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/03/2014] [Revised: 10/26/2014] [Accepted: 10/28/2014] [Indexed: 06/04/2023]
Abstract
Nizimuddinia zanardini macroalgae, harvested from Persian Gulf, was chemically characterized and employed for the production of ethanol, seaweed extract, alginic acid, and biogas. In order to improve the products yields, the biomass was pretreated with dilute sulfuric acid and hot water. The pretreated and untreated biomasses were subjected to enzymatic hydrolysis by cellulase (15FPU/g) and β-glucosidase (30IU/g). Hydrolysis yield of glucan was 29.8, 82.5, and 72.7g/kg for the untreated, hot-water pretreated, and acid pretreated biomass, respectively. Anaerobic fermentation of hydrolysates by Saccharomycescerevisiae resulted in the maximum ethanol yield of 34.6g/kg of the dried biomass. A seaweed extract containing mannitol and a solid residue containing alginic acid were recovered as the main byproducts of the ethanol production. On the other hand, the biogas yield from the biomass was increased from 170 to 200m(3) per ton of dried algae biomass by hot water pretreatment.
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Affiliation(s)
- Parviz Yazdani
- Department of Chemical Engineering, Isfahan University of Technology, Isfahan 84156-83111, Iran
| | - Akram Zamani
- Department of Chemical Engineering, Isfahan University of Technology, Isfahan 84156-83111, Iran; Swedish Centre for Resource Recovery, University of Borås, 50190 Borås, Sweden.
| | - Keikhosro Karimi
- Department of Chemical Engineering, Isfahan University of Technology, Isfahan 84156-83111, Iran; Industrial Biotechnology Group, Institute of Biotechnology and Bioengineering, Isfahan University of Technology, Isfahan 84156-83111, Iran
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Bertoni FA, Bellú SE, González JC, Sala LF. Reduction of hypervalent chromium in acidic media by alginic acid. Carbohydr Polym 2014; 114:1-11. [PMID: 25263857 DOI: 10.1016/j.carbpol.2014.07.065] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [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: 06/06/2014] [Revised: 07/23/2014] [Accepted: 07/31/2014] [Indexed: 10/24/2022]
Abstract
Selective oxidation of carboxylate groups present in alginic acid by Cr(VI) affords CO2, oxidized alginic acid, and Cr(III) as final products. The redox reaction afforded first-order kinetics in [alginic acid], [Cr(VI)], and [H(+)], at fixed ionic strength and temperature. Kinetic studies showed that the redox reaction proceeds through a mechanism which combines Cr(VI)→Cr(IV)→Cr(II) and Cr(VI)→Cr(IV)→Cr(III) pathways. The mechanism was supported by the observation of free radicals, CrO2(2+) and Cr(V) as reaction intermediates. The reduction of Cr(IV) and Cr(V) by alginic acid was independently studied and it was found to occur more than 10(3) times faster than alginic acid/Cr(VI) reaction, in acid media. At pH 1-3, oxo-chromate(V)-alginic acid species remain in solution during several hours at 15°C. The results showed that this abundant structural polysaccharide present on brown seaweeds is able to reduce Cr(VI/V/IV) or stabilize high-valent chromium depending on pH value.
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Affiliation(s)
- Fernando A Bertoni
- Área Química General, Departamento de Químico-Física, Facultad de Ciencias Bioquímicas y Farmacéuticas, Universidad Nacional de Rosario, Suipacha 531, S2002LRK Rosario, Santa Fe, Argentina; Instituto de Química de Rosario-CONICET, Suipacha 570, S2002LRK Rosario, Santa Fe, Argentina
| | - Sebastian E Bellú
- Área Química General, Departamento de Químico-Física, Facultad de Ciencias Bioquímicas y Farmacéuticas, Universidad Nacional de Rosario, Suipacha 531, S2002LRK Rosario, Santa Fe, Argentina; Instituto de Química de Rosario-CONICET, Suipacha 570, S2002LRK Rosario, Santa Fe, Argentina.
| | - Juan C González
- Área Química General, Departamento de Químico-Física, Facultad de Ciencias Bioquímicas y Farmacéuticas, Universidad Nacional de Rosario, Suipacha 531, S2002LRK Rosario, Santa Fe, Argentina; Instituto de Química de Rosario-CONICET, Suipacha 570, S2002LRK Rosario, Santa Fe, Argentina
| | - Luis F Sala
- Área Química General, Departamento de Químico-Física, Facultad de Ciencias Bioquímicas y Farmacéuticas, Universidad Nacional de Rosario, Suipacha 531, S2002LRK Rosario, Santa Fe, Argentina; Instituto de Química de Rosario-CONICET, Suipacha 570, S2002LRK Rosario, Santa Fe, Argentina
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Jeong SM, Kim EY, Hwang JH, Lee GY, Cho SJ, Bae JY, Song JE, Yoon KH, Joo CK, Lee D, Khang G. A study on proliferation and behavior of retinal pigment epithelial cells on purified alginate films. Int J Stem Cells 2013; 4:105-12. [PMID: 24298342 DOI: 10.15283/ijsc.2011.4.2.105] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/06/2011] [Indexed: 11/09/2022] Open
Abstract
BACKGROUND AND OBJECTIVES Alginate, an anionic polysaccharide distributed widely in the cell walls of brown algae, is used in biomedical applications. However, alginate' s performance as a biomaterial, has limited by its several contamination such as endotoxins, proteins and polyphenols. METHODS AND RESULTS To overcome this problem, we have developed using modified Korbutt method for alginate purification. After purification, we made alginate films and used for retinal pigment epithelial cell (RPEs) regeneration. ARPE-19 cells were seeded in non-purified and purified alginate films, and then cell viability and proliferation were estimated by MTT assay and RT-PCR was performed to assess specific cell expression. ARPE-19 cell-loaded alginate films were evaluated specific protein expression by through AEC staining and we examined the cell adhesion by scanning electron micro scopy (SEM). CONCLUSIONS In this result, ARPE-19 cells in purified alginate films had higher cell proliferative rate and phenotypic expression than those on non-purified alginate films. The results suggest that purified alginate is useful for RPEs regeneration.
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Affiliation(s)
- Su Mi Jeong
- Department of BIN Fusion Technology, Polymer Fusion Research Center, Department of Polymer Nano Science Technology, Chonbuk National University, Jeonju
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Lai IR, Wu MS, Lin JT. Prospective, randomized, and active controlled study of the efficacy of alginic acid and antacid in the treatment of patients with endoscopy-negative reflux disease. World J Gastroenterol 2006; 12:747-54. [PMID: 16521188 PMCID: PMC4066125 DOI: 10.3748/wjg.v12.i5.747] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
AIM: To assess the efficacy and safety of a compound containing alginic acid plus antacid (Topaal®) compared to equal-strength antacid (Nacid®) in patients with endoscopy-negative reflux disease (ENRD).
METHODS: A total of 121 patients with ENRD were randomized to receive Topaal® (65 patients) or Nacid® (56 patients) for 6 weeks, with a consultation every 3 weeks. The primary end-point assessment was the change in the severity of heartburn as evaluated using a visual analog scale (VAS) at 6 weeks. The secondary end-point assessments were the VAS at 3 weeks, the change of frequency of the reflux symptom, the change of quality of life and the adverse effects.
RESULTS: Demographics of randomized subjects in each treatment group were comparable except that the Topaal® group included more males. The baseline characteristics between the groups were similar. After 6 weeks of treatment, the reduction of VAS of heartburn was more prominent in the Topaal® group (-6.29 cm vs -4.11 cm). At the 3rd week, Topaal® group showed greater reduction of VAS for heartburn (P = 0.0016), regurgitation (P = 0.0006), vomiting (P = 0.0373), and belching (P <0.0001). The patients of the Topaal® group had lower frequency of heartburn (P = 0.0015) and pain (P = 0.0163) at the end of the 6-week treatment period. From the doctor’s point of view, the Topaal® group also showed significant reduction in the severity of heartburn (P = 0.0020), regurgitation (P = 0.0081), vomiting (P = 0.0182), and belching (P = 0.0018) at the end of the treatment. The improvement of the quality of life was more remarkable in the Topaal® group at the end of the 6-week treatment period (P < 0.0001). For the adverse effect, there was no difference in both the groups.
CONCLUSION: Topaal® is more effective than Nacid® for the treatment of symptoms presented by patients with ENRD.
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Affiliation(s)
- I-Rue Lai
- Department of Surgery, National Taiwan University Hospital, National Taiwan University College of Medicine, Taipei, Taiwan, China
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