1
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Jin H, Wen J, Wang L, Zhang Y, Sui X. Synthesis and characterization of ion-induced sodium alginate/soy protein isolate microgels for the controlled release. Food Chem 2024; 452:139588. [PMID: 38754168 DOI: 10.1016/j.foodchem.2024.139588] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2024] [Revised: 05/04/2024] [Accepted: 05/06/2024] [Indexed: 05/18/2024]
Abstract
In this study, sodium alginate/ soy protein isolate (SPI) microgels cross-linked by various divalent cations including Cu2+, Ba2+, Ca2+, and Zn2+ were fabricated. Cryo-scanning electron microscopy observations revealed distinctive structural variations among the microgels. In the context of gastric pH conditions, the degree of shrinkage of the microgels followed the sequence of Ca2+ > Ba2+ > Cu2+ > Zn2+. Meanwhile, under intestinal pH conditions, the degree of swelling was ranked as Zn2+ > Ca2+ > Ba2+ > Cu2+. The impact of these variations was investigated through in vitro digestion studies, revealing that all microgels successfully delayed the release of β-carotene within the stomach. Within the simulated intestinal fluid, the microgel cross-linked with Zn2+ exhibited an initial burst release, while those cross-linked with Cu2+, Ba2+, or Ca2+ displayed a sustained release pattern. This research underscores the potential of sodium alginate/SPI microgels cross-linked with different divalent cations as efficient controlled-release delivery systems.
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Affiliation(s)
- Hainan Jin
- College of Food Science, Northeast Agricultural University, Harbin 150030, China
| | - Jiayu Wen
- College of Food Science, Northeast Agricultural University, Harbin 150030, China
| | - Lei Wang
- College of Food Science, Northeast Agricultural University, Harbin 150030, China
| | - Yan Zhang
- College of Horticulture and Landscape Architecture, Northeast Agricultural University, Harbin 150030, China.
| | - Xiaonan Sui
- College of Food Science, Northeast Agricultural University, Harbin 150030, China.
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2
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Guo Z, Han J, Li Z, Sun Y, Chen R, Rehman SU, Xia H, Zhang J, Ma K, Wang J. Borate bioactive glass enhances 3D bioprinting precision and biocompatibility on a sodium alginate platform via Ca 2+ controlled self-solidification. Int J Biol Macromol 2024; 277:134338. [PMID: 39089539 DOI: 10.1016/j.ijbiomac.2024.134338] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2023] [Revised: 07/10/2024] [Accepted: 07/29/2024] [Indexed: 08/04/2024]
Abstract
Sodium alginate (SA) has gained widespread acclaim as a carrier medium for three-dimensional (3D) bioprinting of cells and a diverse array of bioactive substances, attributed to its remarkable biocompatibility and affordability. The conventional approach for fabricating alginate-based tissue engineering constructs entails a post-treatment phase employing a calcium ion solution. However, this method proves ineffectual in addressing the predicament of low precision during the 3D printing procedure and is unable to prevent issues such as non-uniform alginate gelation and substantial distortions. In this study, we introduced borate bioactive glass (BBG) into the SA matrix, capitalizing on the calcium ions released from the degradation of BBG to incite the cross-linking reaction within SA, resulting in the formation of BBG-SA hydrogels. Building upon this fundamental concept, it unveiled that BBG-SA hydrogels greatly enhance the precision of SA in extrusion-based 3D printing and significantly reduce volumetric contraction shrinkage post-printing, while also displaying certain adhesive properties and electrical conductivity. Furthermore, in vitro cellular experiments have unequivocally established the excellent biocompatibility of BBG-SA hydrogel and its capacity to actively stimulate osteogenic differentiation. Consequently, BBG-SA hydrogel emerges as a promising platform for 3D bioprinting, laying the foundation for the development of flexible, biocompatible electronic devices.
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Affiliation(s)
- Zeyong Guo
- High Magnetic Field Laboratory, Key Laboratory of High Magnetic Field and Ion Beam Physical Biology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, Anhui, PR China; University of Science and Technology of China, Hefei 230036, Anhui, PR China
| | - Jian Han
- High Magnetic Field Laboratory, Key Laboratory of High Magnetic Field and Ion Beam Physical Biology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, Anhui, PR China; University of Science and Technology of China, Hefei 230036, Anhui, PR China
| | - Zehua Li
- High Magnetic Field Laboratory, Key Laboratory of High Magnetic Field and Ion Beam Physical Biology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, Anhui, PR China; University of Science and Technology of China, Hefei 230036, Anhui, PR China
| | - Yuxuan Sun
- Department of Precision Machinery and Precision Instrumentation, University of Science and Technology of China, Hefei 230026, Anhui, PR China
| | - Ruiguo Chen
- High Magnetic Field Laboratory, Key Laboratory of High Magnetic Field and Ion Beam Physical Biology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, Anhui, PR China
| | - Sajid Ur Rehman
- High Magnetic Field Laboratory, Key Laboratory of High Magnetic Field and Ion Beam Physical Biology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, Anhui, PR China
| | - Haining Xia
- High Magnetic Field Laboratory, Key Laboratory of High Magnetic Field and Ion Beam Physical Biology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, Anhui, PR China; University of Science and Technology of China, Hefei 230036, Anhui, PR China
| | - Jing Zhang
- High Magnetic Field Laboratory, Key Laboratory of High Magnetic Field and Ion Beam Physical Biology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, Anhui, PR China; University of Science and Technology of China, Hefei 230036, Anhui, PR China
| | - Kun Ma
- High Magnetic Field Laboratory, Key Laboratory of High Magnetic Field and Ion Beam Physical Biology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, Anhui, PR China.
| | - Junfeng Wang
- High Magnetic Field Laboratory, Key Laboratory of High Magnetic Field and Ion Beam Physical Biology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, Anhui, PR China; University of Science and Technology of China, Hefei 230036, Anhui, PR China; Institutes of Physical Science and Information Technology, Anhui University, Hefei 230601, Anhui, PR China.
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3
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Saad MA, Sadik ER, Eldakiky BM, Moustafa H, Fadl E, He Z, Elashtoukhy EZ, Khalifa RE, Zewail TMM. Synthesis and characterization of an innovative sodium alginate/polyvinyl alcohol bioartificial hydrogel for forward-osmosis desalination. Sci Rep 2024; 14:8225. [PMID: 38589408 PMCID: PMC11002025 DOI: 10.1038/s41598-024-58533-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2023] [Accepted: 04/01/2024] [Indexed: 04/10/2024] Open
Abstract
Recently, hydrogels have been widely applied as draw agents in forward osmosis (FO) desalination. This work aims to synthesize bioartificial hydrogel from a blend of sodium alginate (SA) and polyvinyl alcohol (PVA) using epichlorohydrin (ECH) as a crosslinker. Then this prepared hydrogel was applied as a draw agent with cellulose triacetate membrane in a batch (FO) cell. The effects of the PVA content in the polymer blend and the crosslinker dose on the hydrogel's swelling capacity were investigated to optimize the hydrogel's composition. Furthermore, the water flux and the reverse solute flux of the optimum SA/PVA hydrogel were evaluated in a batch (FO) unit under the effect of the hydrogel's particle size, feed solution (FS) temperature, FS concentration, and membrane orientation. Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), X-ray diffraction (XRD) and compression strength tests were used to characterize the prepared hydrogel. Results revealed that the equilibrium swelling ratio (%) of 5228 was achieved with a hydrogel that had 25% PVA and a crosslinking ratio of 0.8. FO experiments revealed that the maximum water flux of 0.845 LMH achieved, when distilled water was used as FS, average hydrogel's particle size was 60 µm, and the FS temperature was 40 °C.
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Affiliation(s)
- Menatalla Ashraf Saad
- Chemical Engineering Department, Faculty of Engineering, Alexandria University, Alexandria, 21544, Egypt.
| | - Eman Radi Sadik
- Chemical Engineering Department, Borg Al Arab Higher Institute of Engineering and Technology, Alexandria, 21933, Egypt
| | - Basma Mohamed Eldakiky
- Chemical Engineering Department, Borg Al Arab Higher Institute of Engineering and Technology, Alexandria, 21933, Egypt
| | - Hanan Moustafa
- Biotechnology Department, Institute of Graduate Studies and Research, Alexandria University, Alexandria, 21526, Egypt
| | - Eman Fadl
- Materials Science Department, Institute of Graduate Studies and Research, Alexandria University, Alexandria, 21526, Egypt
| | - Zhen He
- Department of Energy, Environmental and Chemical Engineering, Washington University in St. Louis, St. Louis, MO, 63130, USA
| | | | - Randa Eslah Khalifa
- Polymer Materials Department, Advanced Technologies and New Materials Research Institute (ATNMRI), City of Scientific Research and Technological Applications (SRTA City), P.O. Box: 21934, New Borg El-Arab City, Alexandria, Egypt
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4
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Lin X, Shi J, Meng G, Pan Y, Liu Z. Effect of graphene oxide on sodium alginate hydrogel as a carrier triggering release of ibuprofen. Int J Biol Macromol 2024; 260:129515. [PMID: 38237826 DOI: 10.1016/j.ijbiomac.2024.129515] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Revised: 01/09/2024] [Accepted: 01/13/2024] [Indexed: 01/21/2024]
Abstract
The design and preparation of safe wound dressings with antibacterial and controlled drug release abilities is valuable in medicine. This research focuses on the fabrication of a hydrogel carrier with graphene oxide (GO)-triggered ibuprofen (IBU) release to control inflammation. The hydrogel was prepared by cross-linking the base polymer sodium alginate (SA) and functionalized GO. The morphology of the gel was observed by a scanning electron microscope (SEM), and its structure was analyzed through X-ray diffraction (XRD) and Fourier transform infrared reflection (FTIR) spectroscopy. The effects of GO on swelling capacity, IBU release behavior and antibacterial activity were investigated by using the prepared GO/SA hydrogel as a drug carrier and IBU as a drug model. In vitro studies confirmed that the GO/SA hydrogel had good antimicrobial activity and excellent cytotoxicity. The analysis of cumulative IBU release rates revealed that the addition of GO could promote the release of IBU, and the change in GO content did not have a prominent effect on IBU release. At the same time, the rate of IBU release from the GO/SA hydrogel was affected by near-infrared light. Under a light source, the release rate of IBU increased, and the release amount of IBU showed a clear stepwise increase under light on-off conditions. These results suggest that the GO/SA hydrogel could be a potential antibacterial and anti-inflammatory wound dressing.
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Affiliation(s)
- Xiuling Lin
- Department of Materials Science and Engineering, Anhui University of Science and Technology, Huainan 232001, China.
| | - Jiali Shi
- Department of Materials Science and Engineering, Anhui University of Science and Technology, Huainan 232001, China
| | - Ge Meng
- Department of Materials Science and Engineering, Anhui University of Science and Technology, Huainan 232001, China
| | - Yusong Pan
- Department of Materials Science and Engineering, Anhui University of Science and Technology, Huainan 232001, China
| | - Zhenying Liu
- Department of Materials Science and Engineering, Anhui University of Science and Technology, Huainan 232001, China
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5
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Zhu L, Zhang X, Ran L, Zhang H, Zheng Y, Liu C, Zhou L. Tri-modified ferric alginate gel with high regenerative properties catalysts for efficient degradation of rhodamine B. Carbohydr Polym 2023; 322:121309. [PMID: 37839850 DOI: 10.1016/j.carbpol.2023.121309] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2023] [Revised: 07/29/2023] [Accepted: 08/15/2023] [Indexed: 10/17/2023]
Abstract
Water pollution caused by dyes has become a focal point of attention. Among them, the heterogeneous Fenton reaction has emerged as an effective solution to this problem. In this study, we designed a ferric alginate gel (PAGM) tri-modified with poly(vinyl alcohol), graphene oxide, and MoS2 as a heterogeneous Fenton catalyst for organic dye degradation. PAGM addresses the drawbacks of alginate gel, such as poor mechanical properties and gel chain dissolution, thereby significantly extending the catalyst's lifespan. The removal rate of rhodamine B by PAGM reached 95.5 % within 15 min, which was 5.9 times higher than that of unmodified ferric alginate gel. Furthermore, due to the π-π interactions, PAGM exhibits unique adsorption properties for pollutants containing benzene rings. Additionally, PAGM can be regenerated multiple times through a simple soaking procedure without any performance degradation. Finally, the reaction column constructed with PAGM maintained an 83.5 % removal rate even after 319 h of continuous wastewater treatment. This work introduces a novel concept for the study of alginate-based gel catalysts in heterogeneous Fenton reactions.
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Affiliation(s)
- Lingxiao Zhu
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Institute of Biochemical Engineering & Environmental Technology, Lanzhou University, Lanzhou 730000, PR China
| | - Xu Zhang
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Institute of Biochemical Engineering & Environmental Technology, Lanzhou University, Lanzhou 730000, PR China
| | - Lang Ran
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Institute of Biochemical Engineering & Environmental Technology, Lanzhou University, Lanzhou 730000, PR China
| | - Heng Zhang
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Institute of Biochemical Engineering & Environmental Technology, Lanzhou University, Lanzhou 730000, PR China
| | - Yajuan Zheng
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Institute of Biochemical Engineering & Environmental Technology, Lanzhou University, Lanzhou 730000, PR China
| | - Chen Liu
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Institute of Biochemical Engineering & Environmental Technology, Lanzhou University, Lanzhou 730000, PR China
| | - Lincheng Zhou
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Institute of Biochemical Engineering & Environmental Technology, Lanzhou University, Lanzhou 730000, PR China; Zhongwei High-tech Institute of Lanzhou University, 755000, PR China.
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6
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Liu H, Zhang X, Lv Z, Wei F, Liang Q, Qian L, Li Z, Chen X, Wu W. Ternary Heterostructure Membranes with Two-Dimensional Tunable Channels for Highly Selective Ion Separation. JACS AU 2023; 3:3089-3100. [PMID: 38034952 PMCID: PMC10685435 DOI: 10.1021/jacsau.3c00473] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/13/2023] [Revised: 10/24/2023] [Accepted: 10/24/2023] [Indexed: 12/02/2023]
Abstract
Selective ion separation from brines is pivotal for attaining high-purity lithium, a critical nonrenewable resource. Conventional methods encounter substantial challenges, driving the quest for streamlined, efficient, and swift approaches. Here, we present a graphene oxide (GO)-based ternary heterostructure membrane with a unique design. By utilizing Zn2+-induced confinement synthesis in a two-dimensional (2D) space, we incorporated two-dimensional zeolitic imidazolate framework-8 (ZIF-8) and zinc alginate (ZA) polymers precisely within layers of the GO membrane, creating tunable interlayer channels with a ternary heterostructure. The pivotal design lies in ion insertion into the two-dimensional (2D) membrane layers, achieving meticulous modulation of layer spacing based on ion hydration radius. Notably, the ensuing layer spacing within the hybrid ionic intercalation membrane occupies an intermediary realm, positioned astutely between small-sized hydrated ionic intercalation membrane spacing and their more extensive counterparts. This deliberate configuration accelerates the swift passage of diminutive hydrated ions while simultaneously impeding the movement of bulkier ions within the brine medium. The outcome is remarkable selectivity, demonstrated by the partitioning of K+/Li+ = 20.9, Na+/K+ = 31.2, and Li+/Mg2+ = 9.5 ion pairs. The ZIF-8/GO heterostructure significantly contributes to the selectivity, while the mechanical robustness and stability, improved by the ZA/GO heterostructure, further support its practical applicability. This report reports an advanced membrane design, offering promising prospects for lithium extraction and various ion separation processes.
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Affiliation(s)
- Huiling Liu
- MOE
Frontiers Science Center for Rare Isotopes, Lanzhou University, 222 Tianshui South Road, Lanzhou 730000, China
- School
of Nuclear Science and Technology, Lanzhou
University, 222 Tianshui
South Road, Lanzhou 730000, China
| | - Xin Zhang
- MOE
Frontiers Science Center for Rare Isotopes, Lanzhou University, 222 Tianshui South Road, Lanzhou 730000, China
- School
of Nuclear Science and Technology, Lanzhou
University, 222 Tianshui
South Road, Lanzhou 730000, China
| | - Zixiao Lv
- MOE
Frontiers Science Center for Rare Isotopes, Lanzhou University, 222 Tianshui South Road, Lanzhou 730000, China
- School
of Nuclear Science and Technology, Lanzhou
University, 222 Tianshui
South Road, Lanzhou 730000, China
| | - Fang Wei
- MOE
Frontiers Science Center for Rare Isotopes, Lanzhou University, 222 Tianshui South Road, Lanzhou 730000, China
| | - Qing Liang
- CAS
Key Laboratory of Chemistry of Northwestern Plant Resources and Key
Laboratory for Natural Medicine of Gansu Province, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, 18 Tianshui Road, Lanzhou 730000, China
| | - Lijuan Qian
- MOE
Frontiers Science Center for Rare Isotopes, Lanzhou University, 222 Tianshui South Road, Lanzhou 730000, China
- School
of Nuclear Science and Technology, Lanzhou
University, 222 Tianshui
South Road, Lanzhou 730000, China
| | - Zhan Li
- MOE
Frontiers Science Center for Rare Isotopes, Lanzhou University, 222 Tianshui South Road, Lanzhou 730000, China
- School
of Nuclear Science and Technology, Lanzhou
University, 222 Tianshui
South Road, Lanzhou 730000, China
| | - Ximeng Chen
- MOE
Frontiers Science Center for Rare Isotopes, Lanzhou University, 222 Tianshui South Road, Lanzhou 730000, China
- School
of Nuclear Science and Technology, Lanzhou
University, 222 Tianshui
South Road, Lanzhou 730000, China
| | - Wangsuo Wu
- MOE
Frontiers Science Center for Rare Isotopes, Lanzhou University, 222 Tianshui South Road, Lanzhou 730000, China
- School
of Nuclear Science and Technology, Lanzhou
University, 222 Tianshui
South Road, Lanzhou 730000, China
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7
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Venkataraman S, Viswanathan V, Thangaiah SG, Omine K, Mylsamy P. Adsorptive exclusion of crystal violet dye using barium encapsulated alginate/carbon composites: characterization and adsorption modeling studies. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:106718-106735. [PMID: 37735334 DOI: 10.1007/s11356-023-29894-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Accepted: 09/11/2023] [Indexed: 09/23/2023]
Abstract
The present study is devoted to the removal of crystal violet dye using the synthesized barium alginate/carbon composites abbreviated as BA (barium alginate), BAAC (barium alginate/activated carbon), BASC (barium alginate/starch carbon), and BASSC (barium alginate/starch carbon modified with CTAB). The adsorptive removal of crystal violet as a function of contact time, pH of solution, composite dose, initial dye concentration, and temperature was studied. The uptake of crystal violet (CV) dye for the composites was recorded in the range of 36 mg g-1 to 50 mg g-1 at pH 8.03 ± 0.03 for an equilibrium time of 120 min. The adsorption kinetics and isotherms in compliance with the CV sorption onto BA/carbon composites corroborated the utmost fit of pseudo-second-order and Freundlich isotherm models, respectively. The recycling process was achieved using the barium alginate-treated bead carbons for different initial CV dye concentrations of 10-30 mg L-1 with a scope of zero disposal. The practicability of BA/carbon composites in a groundwater sample spiked with 30 mg L-1 of CV was successfully achieved with a removal efficiency of about 65-74%. Characterization studies for the composites using FTIR, SEM (with EDS), XRD, TGA, and BET were carried out and discussed in the paper.
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Affiliation(s)
- Sivasankar Venkataraman
- Post Graduate and Research Department of Chemistry, Pachaiyappa's College Affiliated to University of Madras, Chennai, Tamil Nadu, 600 030, India
| | - Vinitha Viswanathan
- Post Graduate and Research Department of Chemistry, Pachaiyappa's College Affiliated to University of Madras, Chennai, Tamil Nadu, 600 030, India
| | - Sunitha Ganesan Thangaiah
- Post Graduate and Research Department of Chemistry, Pachaiyappa's College Affiliated to University of Madras, Chennai, Tamil Nadu, 600 030, India.
| | - Kiyoshi Omine
- Department of Civil Engineering, School of Engineering, Nagasaki University, 1-14 Bunkyo, Nagasaki, 852-8521, Japan
| | - Prabhakaran Mylsamy
- Post Graduate and Research Department of Botany, Pachaiyappa's College Affiliated to University of Madras, Chennai, Tamil Nadu, 600 030, India
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8
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Singha Deb AK, Mohan M, Govalkar S, Dasgupta K, Ali SM. Functionalized Carbon Nanotubes Encapsulated Alginate Beads for the Removal of Mercury Ions: Design, Synthesis, Density Functional Theory Calculation, and Demonstration in a Batch and Fixed-Bed Process. ACS OMEGA 2023; 8:32204-32220. [PMID: 37692220 PMCID: PMC10483673 DOI: 10.1021/acsomega.3c05116] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/16/2023] [Accepted: 07/31/2023] [Indexed: 09/12/2023]
Abstract
Various nanomaterials have been envisaged mainly through batch studies for environmental remediation application. The real utilization of these new generation adsorbents in large scale pose a difficulty due to its low density and small size which makes it difficult for isolation after application. In this context, nanoadsorbents polymer composite beads can be seen as a way out. Here, functionalized CNTs (carbon nanotubes) have been fabricated into micro beads with sodium alginate. The alginate-functionalized CNT (Alg-f-CNT) beads were then comprehensively evaluated for batch and fixed-bed column separation of divalent mercury ions from an aqueous medium. The effects of process parameters such as pH, contact time, feed Hg2+ concentration, and temperature were studied. Simulation of the experimental data suggested that adsorption is an endothermic spontaneous process which follows the pseudo-second-order kinetic and Langmuir isotherm model. The desorption of the Hg2+ ion from used adsorbent was possible with 1 M HNO3. The breakthrough curves at different process parameters were investigated during fixed-bed column separation and found to be in good agreement with Thomas model. The regeneration and reusability of the adsorbent were tested up to five cycles without a significant decrease in the removal performance. Density functional theory studies revealed stronger interaction of Alg-f-CNT with Hg compared to free alginic acid and established the role of carboxyl and oxo groups present in the adsorbent in the coordination of the Hg2+ ions. The experimental results demonstrate that functionalized CNT-encapsulated alginate beads are a promising alternate material, which can be used to remove mercury in the fixed-bed column mode of the operation.
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Affiliation(s)
| | - Manju Mohan
- Chemical
Engineering Division, Bhabha Atomic Research
Centre, Mumbai 400 085, India
| | - Smita Govalkar
- Chemical
Engineering Division, Bhabha Atomic Research
Centre, Mumbai 400 085, India
| | - Kinshuk Dasgupta
- Glass
& Advanced Materials Division, Bhabha
Atomic Research Centre, Mumbai 400 085, India
| | - Sheikh Musharaf Ali
- Chemical
Engineering Division, Bhabha Atomic Research
Centre, Mumbai 400 085, India
- Homi
Bhabha National Institute, Anushaktinagar, Mumbai 40085, India
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9
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El-Sayed NS, Hashem AH, Khattab TA, Kamel S. New antibacterial hydrogels based on sodium alginate. Int J Biol Macromol 2023; 248:125872. [PMID: 37482158 DOI: 10.1016/j.ijbiomac.2023.125872] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2022] [Revised: 07/12/2023] [Accepted: 07/15/2023] [Indexed: 07/25/2023]
Abstract
Nowadays, the combined knowledge and experience in biomedical research and material sciences results in the innovation of smart materials that could efficiently overcome the problems of microbial contaminations. Herein, a new drug delivery platform prepared by grafting sodium alginate with β-carboxyethyl acrylate and acrylamide was described and characterized. 9-Aminoacridine (9-AA), and kanamycin sulfate (KS) were separately loaded into the hydrogel in situ during graft polymerization. The grafting efficiency for the resulting hydrogels was 70.01-78.08 %. The chemical structure of the hydrogels, thermogravimetric analysis, and morphological features were investigated. The swelling study revealed that the hydrogel without drugs achieved a superior swelling rate compared to drug-loaded hydrogels. The hydrogel tuned the drug-release rate in a pH-dependent manner. Furthermore, the antibacterial study suggested that the hydrogels encapsulating 9-AA (88.6 %) or KS (89.3 %) exhibited comparable antibacterial activity against Gram-positive and Gram-negative bacterial strains. Finally, the cytocompatibility study conducted on normal lung cell line (Vero cells) demonstrated neglectable to tolerable toxicity for the drug-loaded hydrogel. More interestingly, the cell viability for the blank hydrogel was 92.5 %, implying its suitability for biomedical applications.
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Affiliation(s)
| | - Amr H Hashem
- Botany and Microbiology Department, Faculty of Science, Al-Azhar University, Cairo 11884, Egypt
| | - Tawfik A Khattab
- Dyeing, Printing and Auxiliaries Department, National Research Centre, Cairo, P.O. 12622, Egypt
| | - Samir Kamel
- Cellulose and Paper Department, National Research Centre, Cairo, P.O. 12622, Egypt
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10
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Zakaria SA, Amini MH, Ahmadi SH. Noninvasive Colorimetric Detection of Acetic Acid in Human Breath Based on an Alginate/Ni-Al-LDH/Dye Composite Film. ACS OMEGA 2023; 8:23613-23621. [PMID: 37426209 PMCID: PMC10323955 DOI: 10.1021/acsomega.3c01617] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Accepted: 04/06/2023] [Indexed: 07/11/2023]
Abstract
Alginate/Ni-Al-layered double hydroxide/dye (Alg/Ni-Al-LDH/dye) composite films were fabricated using the solution casting method. The dyes used included methyl red, phenol red, thymol blue, bromothymol blue, m-cresol purple, methyl orange, bromocresol purple (BP), and bromocresol green (BG) in the overall pH range of 3.8 to 9.6. The chemical composition and morphology of the Alg/Ni-Al-LDH/dye composite film structure were investigated by Fourier transform infrared spectroscopy, FESEM, atomic force microscopy, and X-ray diffraction. The Alg/Ni-Al-LDH/dye composite films were semitransparent and mechanically flexible. Acetic acid was investigated as a respiratory biomarker related to gastrointestinal diseases. The parameters studied included color volume, response time, Ni-Al-LDH nanosheet volume, reusability, and drawing of the calibration curve along with statistical features including standard deviation, relative standard deviation, limit of detection, and limit of quantitation. Colorimetric indicators BP and BG in the presence of acetic acid produce color changes that are almost visible to the naked eye. However, other used indicators have shown almost no change. Therefore, it can be reported that the sensors made in the presence of BP and BG act selectively in relation to acetic acid.
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11
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Release of Bioactive Molecules from Graphene Oxide-Alginate Hybrid Hydrogels: Effect of Crosslinking Method. Mol Vis 2023. [DOI: 10.3390/c9010008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
Abstract
To investigate the influence of crosslinking methods on the releasing performance of hybrid hydrogels, we synthesized two systems consisting of Graphene oxide (GO) as a functional element and alginate as polymer counterpart by means of ionic gelation (physical method, HA−GOP) and radical polymerization (chemical method, HA−GOC). Formulations were optimized to maximize the GO content (2.0 and 1.15% for HA−GOP and HA−GOC, respectively) and Curcumin (CUR) was loaded as a model drug at 2.5, 5.0, and 7.5% (by weight). The physico-chemical characterization confirmed the homogeneous incorporation of GO within the polymer network and the enhanced thermal stability of hybrid vs. blank hydrogels. The determination of swelling profiles showed a higher swelling degree for HA−GOC and a marked pH responsivity due to the COOH functionalities. Moreover, the application of external voltages modified the water affinity of HA−GOC, while they accelerated the degradation of HA−GOP due to the disruption of the crosslinking points and the partial dissolution of alginate. The evaluation of release profiles, extensively analysed by the application of semi-empirical mathematical models, showed a sustained release from hybrid hydrogels, and the possibility to modulate the releasing amount and rate by electro-stimulation of HA−GOC.
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Eltaweil AS, Ahmed MS, El-Subruiti GM, Khalifa RE, Omer AM. Efficient loading and delivery of ciprofloxacin by smart alginate/carboxylated graphene oxide/aminated chitosan composite microbeads: in vitro release and kinetic studies. ARAB J CHEM 2023. [DOI: 10.1016/j.arabjc.2022.104533] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
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13
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Jiang J, Wang J, Wang P, Lin X, Diao G. Three-dimensional graphene foams with two hierarchical pore structures for metal-free electrochemical assays of dopamine and uric acid from high concentration of ascorbic acid. J Electroanal Chem (Lausanne) 2022. [DOI: 10.1016/j.jelechem.2022.117056] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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14
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Aparicio-Collado JL, García-San-Martín N, Molina-Mateo J, Torregrosa Cabanilles C, Donderis Quiles V, Serrano-Aroca A, Sabater I Serra R. Electroactive calcium-alginate/polycaprolactone/reduced graphene oxide nanohybrid hydrogels for skeletal muscle tissue engineering. Colloids Surf B Biointerfaces 2022; 214:112455. [PMID: 35305322 DOI: 10.1016/j.colsurfb.2022.112455] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2022] [Revised: 03/06/2022] [Accepted: 03/08/2022] [Indexed: 12/20/2022]
Abstract
Graphene derivatives such as reduced graphene oxide (rGO) are used as components of novel biomaterials for their unique electrical properties. Electrical conductivity is a crucial factor for muscle cells, which are electrically active. This study reports the development of a new type of semi-interpenetrated polymer network based on two biodegradable FDA-approved biomaterials, sodium alginate (SA) and polycaprolactone (PCL), with Ca2+ ions as SA crosslinker. Several drawbacks such as the low cell adhesion of SA and weak structural stability can be improved with the incorporation of PCL. Furthermore, this study demonstrates how this semi-IPN can be engineered with rGO nanosheets (0.5% and 2% wt/wt rGO nanosheets) to produce electroactive nanohybrid composite biomaterials. The study focuses on the microstructure and the enhancement of physical and biological properties of these advanced materials, including water sorption, surface wettability, thermal behavior and thermal degradation, mechanical properties, electrical conductivity, cell adhesion and myogenic differentiation. The results suggest the formation of a complex nano-network with different interactions between the components: bonds between SA chains induced by Ca2+ ions (egg-box model), links between rGO nanosheets and SA chains as well as between rGO nanosheets themselves through Ca2+ ions, and strong hydrogen bonding between rGO nanosheets and SA chains. The incorporation of rGO significantly increases the electrical conductivity of the nanohybrid hydrogels, with values in the range of muscle tissue. In vitro cultures with C2C12 murine myoblasts revealed that the conductive nanohybrid hydrogels are not cytotoxic and can greatly enhance myoblast adhesion and myogenic differentiation. These results indicate that these novel electroactive nanohybrid hydrogels have great potential for biomedical applications related to the regeneration of electroactive tissues, particularly in skeletal muscle tissue engineering.
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Affiliation(s)
- J L Aparicio-Collado
- Centre for Biomaterials and Tissue Engineering, Universitat Politècnica de València, Spain
| | - N García-San-Martín
- Centre for Biomaterials and Tissue Engineering, Universitat Politècnica de València, Spain
| | - J Molina-Mateo
- Centre for Biomaterials and Tissue Engineering, Universitat Politècnica de València, Spain
| | | | - V Donderis Quiles
- Department of Electrical Engineering, Universitat Politècnica de València, Spain
| | - A Serrano-Aroca
- Biomaterials and Bioengineering Lab, Centro de Investigación Traslacional San Alberto Magno, Universidad Católica de Valencia San Vicente Mártir, Valencia, Spain.
| | - R Sabater I Serra
- Centre for Biomaterials and Tissue Engineering, Universitat Politècnica de València, Spain; Department of Electrical Engineering, Universitat Politècnica de València, Spain; Biomedical Research Networking Centre in Bioingenieering, Biomaterials and Nanomedicine (CIBER-BBN), Spain.
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Ji D, Park JM, Oh MS, Nguyen TL, Shin H, Kim JS, Kim D, Park HS, Kim J. Superstrong, superstiff, and conductive alginate hydrogels. Nat Commun 2022; 13:3019. [PMID: 35641519 PMCID: PMC9156673 DOI: 10.1038/s41467-022-30691-z] [Citation(s) in RCA: 67] [Impact Index Per Article: 33.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2021] [Accepted: 05/12/2022] [Indexed: 01/25/2023] Open
Abstract
For the practical use of synthetic hydrogels as artificial biological tissues, flexible electronics, and conductive membranes, achieving requirements for specific mechanical properties is one of the most prominent issues. Here, we demonstrate superstrong, superstiff, and conductive alginate hydrogels with densely interconnecting networks implemented via simple reconstructing processes, consisting of anisotropic densification of pre-gel and a subsequent ionic crosslinking with rehydration. The reconstructed hydrogel exhibits broad ranges of exceptional tensile strengths (8–57 MPa) and elastic moduli (94–1,290 MPa) depending on crosslinking ions. This hydrogel can hold sufficient cations (e.g., Li+) within its gel matrix without compromising the mechanical performance and exhibits high ionic conductivity enough to be utilized as a gel electrolyte membrane. Further, this strategy can be applied to prepare mechanically outstanding, ionic-/electrical-conductive hydrogels by incorporating conducting polymer within the hydrogel matrix. Such hydrogels are easily laminated with strong interfacial adhesion by superficial de- and re-crosslinking processes, and the resulting layered hydrogel can act as a stable gel electrolyte membrane for an aqueous supercapacitor. Specific mechanical properties are one of the most important issues for application of synthetic hydrogels as biological tissue, flexible electronics or in conductive membranes. Here, the authors demonstrate that a reconstruction process consisting of anisotropic densification of pre-gel and subsequent ionic crosslinking and rehydration leads to strong, stiff, and conductive alginate hydrogels with densely interconnecting networks.
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Affiliation(s)
- Donghwan Ji
- School of Chemical Engineering, Sungkyunkwan University (SKKU), Suwon, 16419, Republic of Korea
| | - Jae Min Park
- School of Chemical Engineering, Sungkyunkwan University (SKKU), Suwon, 16419, Republic of Korea
| | - Myeong Seon Oh
- School of Chemical Engineering, Sungkyunkwan University (SKKU), Suwon, 16419, Republic of Korea
| | - Thanh Loc Nguyen
- School of Chemical Engineering, Sungkyunkwan University (SKKU), Suwon, 16419, Republic of Korea
| | - Hyunsu Shin
- School of Chemical Engineering, Sungkyunkwan University (SKKU), Suwon, 16419, Republic of Korea
| | - Jae Seong Kim
- School of Chemical Engineering, Sungkyunkwan University (SKKU), Suwon, 16419, Republic of Korea
| | - Dukjoon Kim
- School of Chemical Engineering, Sungkyunkwan University (SKKU), Suwon, 16419, Republic of Korea
| | - Ho Seok Park
- School of Chemical Engineering, Sungkyunkwan University (SKKU), Suwon, 16419, Republic of Korea
| | - Jaeyun Kim
- School of Chemical Engineering, Sungkyunkwan University (SKKU), Suwon, 16419, Republic of Korea. .,Department of Health Sciences and Technology, Samsung Advanced Institute for Health Sciences & Technology (SAIHST), Sungkyunkwan University (SKKU), Suwon, 16419, Republic of Korea. .,Biomedical Institute for Convergence at SKKU (BICS), Sungkyunkwan University (SKKU), Suwon, 16419, Republic of Korea. .,Institute of Quantum Biophysics (IQB), Sungkyunkwan University (SKKU), Suwon, 16419, Republic of Korea.
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Graphene Oxide-Reinforced Alginate Hydrogel for Controlled Release of Local Anesthetics: Synthesis, Characterization, and Release Studies. Gels 2022; 8:gels8040246. [PMID: 35448147 PMCID: PMC9026710 DOI: 10.3390/gels8040246] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2022] [Revised: 04/13/2022] [Accepted: 04/14/2022] [Indexed: 12/17/2022] Open
Abstract
In pain relief, lidocaine has gained more attention as a local anesthetic. However, there are several side effects that limit the use of local anesthetics. Therefore, it is hypothesized that a hydrogel system with facile design can be used for prolonged release of lidocaine. In this study, we developed a formulation comprises of sodium alginate (SA) and graphene oxide (GO) to prolong the release of lidocaine. The gelation was induced by physically crosslinking the alginate with Ca2+ ions. The formation of blank SA and GO-reinforced SA hydrogels was investigated with different concentration of Ca2+ ions. The controlled release of lidocaine hydrochloride (LH) on both hydrogel systems was studied in PBS solution. The GO-reinforced SA hydrogels exhibited more sustained release than SA hydrogels without GO. In vitro biocompatibility test in L929 fibroblast cells confirmed the non-toxic property of hydrogels. Furthermore, to prove the in-situ gelation and biodegradability of hydrogels the hydrogels were injected on mice model and confirmed the stable gel formation. The hydrogels implanted onto the subcutaneous tissue of hydrogels retained over one week. These results indicate that LH-loaded GO-reinforced SA hydrogel can be a potential biomaterial for controlled release of local anesthetics.
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Madeo LF, Sarogni P, Cirillo G, Vittorio O, Voliani V, Curcio M, Shai-Hee T, Büchner B, Mertig M, Hampel S. Curcumin and Graphene Oxide Incorporated into Alginate Hydrogels as Versatile Devices for the Local Treatment of Squamous Cell Carcinoma. MATERIALS 2022; 15:ma15051648. [PMID: 35268879 PMCID: PMC8911244 DOI: 10.3390/ma15051648] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/07/2022] [Revised: 02/17/2022] [Accepted: 02/18/2022] [Indexed: 12/25/2022]
Abstract
With the aim of preparing hybrid hydrogels suitable for use as patches for the local treatment of squamous cell carcinoma (SCC)-affected areas, curcumin (CUR) was loaded onto graphene oxide (GO) nanosheets, which were then blended into an alginate hydrogel that was crosslinked by means of calcium ions. The homogeneous incorporation of GO within the polymer network, which was confirmed through morphological investigations, improved the stability of the hybrid system compared to blank hydrogels. The weight loss in the 100–170 °C temperature range was reduced from 30% to 20%, and the degradation of alginate chains shifted to higher temperatures. Moreover, GO enhanced the stability in water media by counteracting the de-crosslinking process of the polymer network. Cell viability assays showed that the loading of CUR (2.5% and 5% by weight) was able to reduce the intrinsic toxicity of GO towards healthy cells, while higher amounts were ineffective due to the antioxidant/prooxidant paradox. Interestingly, the CUR-loaded systems were found to possess a strong cytotoxic effect in SCC cancer cells, and the sustained CUR release (~50% after 96 h) allowed long-term anticancer efficiency to be hypothesized.
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Affiliation(s)
- Lorenzo Francesco Madeo
- Leibniz Institute of Solid State and Material Research Dresden, 01069 Dresden, Germany; (B.B.); (S.H.)
- Correspondence: (L.F.M.); (G.C.); Tel.: +49-35-1465-9883 (L.F.M.); +39-09-8449-3208 (G.C.)
| | - Patrizia Sarogni
- Center for Nanotechnology Innovation, Istituto Italiano di Tecnologia, Piazza San Silvestro 12, 56127 Pisa, Italy; (P.S.); (V.V.)
| | - Giuseppe Cirillo
- Department of Pharmacy Health and Nutritional Science, University of Calabria, 87036 Rende, Italy;
- Correspondence: (L.F.M.); (G.C.); Tel.: +49-35-1465-9883 (L.F.M.); +39-09-8449-3208 (G.C.)
| | - Orazio Vittorio
- Children’s Cancer Institute, Lowy Cancer Research Centre, University of New South Wales, High Street, Randwick, NSW 2052, Australia; (O.V.); (T.S.-H.)
- School of Women’s and Children’s Health, University of New South Wales, Kensington, NSW 2052, Australia
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, Australian Centre for NanoMedicine, University of New South Wales, Kensington, NSW 2052, Australia
| | - Valerio Voliani
- Center for Nanotechnology Innovation, Istituto Italiano di Tecnologia, Piazza San Silvestro 12, 56127 Pisa, Italy; (P.S.); (V.V.)
| | - Manuela Curcio
- Department of Pharmacy Health and Nutritional Science, University of Calabria, 87036 Rende, Italy;
| | - Tyler Shai-Hee
- Children’s Cancer Institute, Lowy Cancer Research Centre, University of New South Wales, High Street, Randwick, NSW 2052, Australia; (O.V.); (T.S.-H.)
- School of Women’s and Children’s Health, University of New South Wales, Kensington, NSW 2052, Australia
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, Australian Centre for NanoMedicine, University of New South Wales, Kensington, NSW 2052, Australia
| | - Bernd Büchner
- Leibniz Institute of Solid State and Material Research Dresden, 01069 Dresden, Germany; (B.B.); (S.H.)
- Institute of Solid State and Materials Physics, Technische Universität Dresden, 01062 Dresden, Germany
| | - Michael Mertig
- Institute of Physical Chemistry, Technische Universität Dresden, 01062 Dresden, Germany;
- Kurt-Schwabe-Institut für Mess- und Sensortechnik Meinsberg e.V., 04736 Waldheim, Germany
| | - Silke Hampel
- Leibniz Institute of Solid State and Material Research Dresden, 01069 Dresden, Germany; (B.B.); (S.H.)
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Yu J, Wang Y, He Y, Gao Y, Hou R, Ma J, Zhang L, Guo X, Chen L. Calcium ion-sodium alginate double cross-linked graphene oxide nanofiltration membrane with enhanced stability for efficient separation of dyes. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2021.119348] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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19
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Sagar P, Singh V, Gupta R, Kaul S, Sharma S, Kaur S, Bhunia RK, Kondepudi KK, Singhal NK. pH-Triggered, Synbiotic Hydrogel Beads for In Vivo Therapy of Iron Deficiency Anemia and Reduced Inflammatory Response. ACS APPLIED BIO MATERIALS 2021; 4:7467-7484. [PMID: 35006707 DOI: 10.1021/acsabm.1c00720] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Iron deficiency anemia (IDA) is the most common nutritional disorder worldwide nearly affecting two billion people. The efficacies of conventional oral iron supplements are mixed, intravenous iron administration acquaintances with finite but crucial risks. Usually, only 5-20% iron is absorbed in the duodenum while the remaining fraction reaches the colon, affecting the gut microbes and can significantly impact intestinal inflammatory responses. Therefore, administration of gut bacterial modulators such as probiotics, prebiotics, and any other dietary molecules that can stimulate healthy gut bacteria can enhance iron absorption without any adverse side effects. In this study, we have prepared an iron supplement to avoid the side effects of conventional oral iron supplements. The formulation includes co-encapsulation of iron with anti-inflammatory probiotic bacteria within alginate/starch hydrogels (B + I-Dex (H)), which has been demonstrated to be efficient in mitigating IDA in vivo. As intestinal pH increases, the pore size of hydrogel increases due to ionic interactions and thus releases the encapsulated bacteria and iron. The field emission scanning electron microscopy (FESEM) analysis confirmed the porous structure of hydrogel beads, and in vitro release studies showed a sustained release of iron and bacteria at intestinal pH. The hydrogel was found to be nontoxic and biocompatible in Caco2 cell lines. The formulation showed efficient in vitro and in vivo iron bioavailability in Fe depletion-repletion studies. B + I-Dex (H) was observed to generate less inflammatory response than FeSO4 or nonencapsulated iron dextran (I-Dex) in vivo. We entrust that this duly functional hydrogel formulation could be further utilized or modified for the development of oral therapeutics for IDA.
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Affiliation(s)
- Poonam Sagar
- National Agri-Food Biotechnology Institute, Sector-81 Mohali, Sahibzada Ajit Singh Nagar 140306, Punjab, India.,Department of Biotechnology, Panjab University Chandigarh, Sector 25, Chandigarh 160014, Punjab, India
| | - Vishal Singh
- National Agri-Food Biotechnology Institute, Sector-81 Mohali, Sahibzada Ajit Singh Nagar 140306, Punjab, India
| | - Ritika Gupta
- National Agri-Food Biotechnology Institute, Sector-81 Mohali, Sahibzada Ajit Singh Nagar 140306, Punjab, India.,Department of Biotechnology, Panjab University Chandigarh, Sector 25, Chandigarh 160014, Punjab, India
| | - Sunaina Kaul
- National Agri-Food Biotechnology Institute, Sector-81 Mohali, Sahibzada Ajit Singh Nagar 140306, Punjab, India.,Department of Biotechnology, Panjab University Chandigarh, Sector 25, Chandigarh 160014, Punjab, India
| | - Shikha Sharma
- National Agri-Food Biotechnology Institute, Sector-81 Mohali, Sahibzada Ajit Singh Nagar 140306, Punjab, India.,Department of Biotechnology, Panjab University Chandigarh, Sector 25, Chandigarh 160014, Punjab, India
| | - Simranjit Kaur
- National Agri-Food Biotechnology Institute, Sector-81 Mohali, Sahibzada Ajit Singh Nagar 140306, Punjab, India
| | - Rupam Kumar Bhunia
- National Agri-Food Biotechnology Institute, Sector-81 Mohali, Sahibzada Ajit Singh Nagar 140306, Punjab, India
| | - Kanthi Kiran Kondepudi
- National Agri-Food Biotechnology Institute, Sector-81 Mohali, Sahibzada Ajit Singh Nagar 140306, Punjab, India
| | - Nitin Kumar Singhal
- National Agri-Food Biotechnology Institute, Sector-81 Mohali, Sahibzada Ajit Singh Nagar 140306, Punjab, India
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Kadhim IAU. Biocompatibility of Alginate -Graphene Oxide Film for Tissue Engineering Applications. KEY ENGINEERING MATERIALS 2021; 900:26-33. [DOI: 10.4028/www.scientific.net/kem.900.26] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/01/2023]
Abstract
The present paper indicates promising potential of Sodium Alginate) Alg)/Graphene oxide (Go) films in fields bone tissue engineering (TE). The Sodium Alginate (Alg)/Graphene oxide (Go) films, were fabricated via (solvent casting method). The interaction of Sodium Alginate (Alg) with Graphene oxide (Go) via hydrogen bonding was confirmed by FTIR analysis. The swelling degree of Sodium Alginate (Alg)/Graphene oxid (Go) films was also studied. Furthermore, the biocompatibility of Sodium Alginate (Alg)/Graphene oxide (Go) films disclosed its non-cytotoxic effect on the cell lines (MG-63) in-vitro test, the viability of cell lines on the films, and hence its appropriateness as potent biomaterial for tissue engineering.
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21
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Xu L, Ali A, Su J, Huang T, Wang Z, Yang Y. Denitrification potential of sodium alginate gel beads immobilized iron-carbon, Zoogloea sp. L2, and riboflavin: Performance optimization and mechanism. BIORESOURCE TECHNOLOGY 2021; 336:125326. [PMID: 34052544 DOI: 10.1016/j.biortech.2021.125326] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2021] [Revised: 05/17/2021] [Accepted: 05/19/2021] [Indexed: 06/12/2023]
Abstract
A kind of gel beads loaded with iron-carbon powder (Fe-C), Zoogloea sp. L2, and riboflavin (VB2) were prepared through cross-linking of sodium alginate (SA) to establish an immobilized bioreactor. The optimal ratio of SA beads was adjusted by orthogonal experiment. The change of oxidation-reduction potential (ORP) and the concentration of Fe2+ and Fe3+ showed that the addition of VB2 as a redox mediator can promote denitrification. Under the optimal conditions (carbon to nitrogen (C/N) ratio = 2.0, pH = 7.0, and hydraulic retention time (HRT) = 8 h), the nitrate removal efficiency (NRE) of bioreactor reached 98.48% (1.99 mg L-1h-1). Furthermore, Fourier transform infrared spectrometer (FTIR), Fluorescence excitation-emission matrix (EEM), X-ray diffraction (XRD), and gas chromatography (GC) analysis revealed that the immobilization and denitrification of the immobilized bioreactor were excellent. High throughput sequencing also showed that Zoogloea played a vital role in nitrate removal.
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Affiliation(s)
- Liang Xu
- School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China; Shaanxi Key Laboratory of Environmental Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China
| | - Amjad Ali
- School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China; Shaanxi Key Laboratory of Environmental Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China
| | - Junfeng Su
- School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China; Shaanxi Key Laboratory of Environmental Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China.
| | - Tingling Huang
- School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China; Shaanxi Key Laboratory of Environmental Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China
| | - Zhao Wang
- School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China; Shaanxi Key Laboratory of Environmental Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China
| | - Yuzhu Yang
- School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China; Shaanxi Key Laboratory of Environmental Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China
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22
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G.V YD, Prabhu A, Anil S, Venkatesan J. Preparation and characterization of dexamethasone loaded sodium alginate-graphene oxide microspheres for bone tissue engineering. J Drug Deliv Sci Technol 2021. [DOI: 10.1016/j.jddst.2021.102624] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
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23
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Synthesis of Silver and Gold Nanoparticles in Sodium Alginate Matrix Enriched with Graphene Oxide and Investigation of Properties of the Obtained Thin Films. APPLIED SCIENCES-BASEL 2021. [DOI: 10.3390/app11093857] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Polymer nanocomposites containing nanometals became a subject of interest due to their bactericidal properties. Different polysaccharides have been used as matrices for nanosilver and nanogold synthesis. In this study, we present a novel, environmentally friendly method for the preparation of sodium alginate/nanosilver/graphene oxide (GOX) and sodium alginate/nanogold/graphene oxide GOX nanocomposites and their characteristics. The formation of approximately 10–20 nm ball-shaped Ag and Au nanoparticles was confirmed by UV–vis spectroscopy, scanning electron microscopy (SEM) and Fourier transform infrared (FTIR) spectra. The incorporation of GOX sheets within the ALG matrix improved the thermal stability of the nanocomposites film, which was measured using the differential scanning calorimetry (DSC). We also estimated the molecular weights of polysaccharide chains of the matrix with the size exclusion chromatography coupled with multiangle laser light scattering and refractometric detectors (HPSEC-MALLS-RI). The composites were more prone to enzymatic hydrolysis. The strongest bacteriostatic activity was observed for the sample containing nanosilver.
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A scalable three-dimensional porous λ-MnO2/rGO/Ca-alginate composite electroactive film with potential-responsive ion-pumping effect for selective recovery of lithium ions. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2020.118111] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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25
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Chen J, Hu H, Yang J, Xue H, Tian Y, Fan K, Zeng Z, Yang J, Wang R, Liu Y. Removal behaviors and mechanisms for series of azo dye wastewater by novel nano constructed macro-architectures material. BIORESOURCE TECHNOLOGY 2021; 322:124556. [PMID: 33352393 DOI: 10.1016/j.biortech.2020.124556] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/22/2020] [Revised: 12/10/2020] [Accepted: 12/13/2020] [Indexed: 06/12/2023]
Abstract
A novel macro-architectures material Fe3O4-N-GO@sodium alginate (SA) gel film was successfully produced, which was used to remove series azo dye wastewater. The optimal adsorption rates were attained, which achieved the maximum removal efficiency of 74.22%, 45.72%, 37.75% for Congo Red, Acid Orange 7 and Amino Black 10B respectively, under the condition that the mass ratio of Fe3O4-N-GO to sodium alginate was 0.11. The optimal adsorption temperature for three dyes was 30 ℃ and the adsorption equilibrium was reached at 150 min. The adsorption kinetic model of Fe3O4-N-GO@SA for the three azo dyes conformed to the quasi-second-order reaction model, and the adsorption isotherm was more in line with the Freundlich adsorption. The adsorption mechanism was multi-layer heterogeneous adsorption under the combined action of physical adsorption and chemisorption, and chemisorption was the main step of controlling the speed. The study would provide theoretical basis for the application of macro-architectures material in environment.
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Affiliation(s)
- Junfeng Chen
- Department of Environmental Science, School of Life Science, Qufu Normal University, Qufu 273165, PR China.
| | - Hanwen Hu
- Department of Environmental Science, School of Life Science, Qufu Normal University, Qufu 273165, PR China
| | - Junhan Yang
- Department of Environmental Science, School of Life Science, Qufu Normal University, Qufu 273165, PR China
| | - Hanhan Xue
- Department of Environmental Science, School of Life Science, Qufu Normal University, Qufu 273165, PR China
| | - Yuping Tian
- Department of Environmental Science, School of Life Science, Qufu Normal University, Qufu 273165, PR China
| | - Keyan Fan
- Department of Environmental Science, School of Life Science, Qufu Normal University, Qufu 273165, PR China
| | - Zhixin Zeng
- Department of Environmental Science, School of Life Science, Qufu Normal University, Qufu 273165, PR China
| | - Jiaqi Yang
- Department of Environmental Science, School of Life Science, Qufu Normal University, Qufu 273165, PR China
| | - Renjun Wang
- Department of Environmental Science, School of Life Science, Qufu Normal University, Qufu 273165, PR China
| | - Yanyan Liu
- Department of Environmental Science, School of Life Science, Qufu Normal University, Qufu 273165, PR China
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Wang L, Wang Y, Dai J, Tian S, Xie A, Dai X, Pan J. Coordination-driven interfacial cross-linked graphene oxide-alginate nacre mesh with underwater superoleophobicity for oil-water separation. Carbohydr Polym 2021; 251:117097. [PMID: 33142635 DOI: 10.1016/j.carbpol.2020.117097] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2020] [Revised: 09/09/2020] [Accepted: 09/09/2020] [Indexed: 11/17/2022]
Abstract
Inspired by the seashell nacre and seaweed, a novel GO-Ca2+-SA nacre-inspired hybrid mesh was prepared via an interfacial layer-by-layer self-assembly and cross-linking, using graphene oxide (GO) and sodium alginate (SA) as the building blocks and calcium chloride as the coordination agent, respectively. Hybrid mesh was characterized by FTIR, XPS, XRD, SEM and contact angel instrument, showing superhydrophilic and underwater superoleophobic property and low oil adhesion, due to its wrinkle and rough surface, and high hydration ability of GO-Ca-alginate nanohydrogels. The separation efficiencies of various oil-water mixtures were above 99 %, with a highest flux of 119,426 L m-2 h-1. Hybrid mesh showed an orderly layered "brick and mortar" microstructure with many ultrasmall nanoscaled protuberances. Ca2+ ions could chelate with SA to form the "egg-box" structure, and interact with GO nanosheets. Hybrid mesh possessed high salt/acid/alkaline tolerance, abrasion resistance, mechanical property with Young's modulus of 35.8 ± 4.9 GPa, and excellent cycling stability.
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Affiliation(s)
- Lulu Wang
- Institute of Green Chemistry and Chemical Technology, Advanced Chemical Engineering Laboratory of Green Materials and Energy of Jiangsu Province, School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang, 212013, China
| | - Yi Wang
- State Key Laboratory of NBC Protection for Civilian, Beijing, 102205, China
| | - Jiangdong Dai
- Institute of Green Chemistry and Chemical Technology, Advanced Chemical Engineering Laboratory of Green Materials and Energy of Jiangsu Province, School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang, 212013, China.
| | - Sujun Tian
- Institute of Green Chemistry and Chemical Technology, Advanced Chemical Engineering Laboratory of Green Materials and Energy of Jiangsu Province, School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang, 212013, China
| | - Atian Xie
- Institute of Green Chemistry and Chemical Technology, Advanced Chemical Engineering Laboratory of Green Materials and Energy of Jiangsu Province, School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang, 212013, China
| | - Xiaohui Dai
- Institute of Green Chemistry and Chemical Technology, Advanced Chemical Engineering Laboratory of Green Materials and Energy of Jiangsu Province, School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang, 212013, China.
| | - Jianming Pan
- Institute of Green Chemistry and Chemical Technology, Advanced Chemical Engineering Laboratory of Green Materials and Energy of Jiangsu Province, School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang, 212013, China.
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Sabater i Serra R, Molina-Mateo J, Torregrosa-Cabanilles C, Andrio-Balado A, Meseguer Dueñas JM, Serrano-Aroca Á. Bio-Nanocomposite Hydrogel Based on Zinc Alginate/Graphene Oxide: Morphology, Structural Conformation, Thermal Behavior/Degradation, and Dielectric Properties. Polymers (Basel) 2020; 12:polym12030702. [PMID: 32235735 PMCID: PMC7183265 DOI: 10.3390/polym12030702] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2020] [Revised: 03/11/2020] [Accepted: 03/19/2020] [Indexed: 12/21/2022] Open
Abstract
Bio-nanocomposite hydrogels based on sodium alginate (SA) as polymer matrix and graphene oxide (GO) nanosheets with zinc as crosslinking agent were synthesized with the aim of incorporating the intrinsic properties of their constituents (bioactivity and antimicrobial activity). Thus, stable and highly interconnected networks were obtained from GO nanosheets dispersed in SA matrices through interactions with low amounts of zinc. The GO nanosheets were successfully incorporated into the alginate matrix in the form of a complex nano-network involving different interactions: Bonds between alginate chains induced by Zn ions (egg box structure), interactions between GO nanosheets through Zn ions and hydrogen bonds between alginate chains, and GO nanosheets. The molecular interactions and morphology were confirmed by Fourier-transform infrared spectroscopy and transmission electron microscopy. The composite’s structural organization showed enhanced thermal stability. The glass transition temperature shifted to a higher temperature due to the reduced mobility induced by additional crosslinking bonds after incorporating the GO nanosheets and Zn into the polymer matrix. Finally, the dielectric behavior revealed that charge carrier mobility was hampered by the compact structure of the nanonetwork, which reduced conductivity. The combined properties of these nanocomposite hydrogels make them attractive biomaterials in the field of regenerative medicine and wound care since both surface bioactivity and antibacterial behavior are two critical factors involved in the success of a biomaterial.
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Affiliation(s)
- Roser Sabater i Serra
- Centre for Biomaterials and Tissue Engineering, Universitat Politècnica de València, 46022 València, Spain; (J.M.-M.); (C.T.-C.); (J.M.M.D.)
- CIBER-BBN, Biomedical Research Networking Centre in Bioengineering, Biomaterials and Nanomedicine, 46022 València, Spain
- Correspondence: (R.S.i.S.); (Á.S.-A.)
| | - José Molina-Mateo
- Centre for Biomaterials and Tissue Engineering, Universitat Politècnica de València, 46022 València, Spain; (J.M.-M.); (C.T.-C.); (J.M.M.D.)
| | - Constantino Torregrosa-Cabanilles
- Centre for Biomaterials and Tissue Engineering, Universitat Politècnica de València, 46022 València, Spain; (J.M.-M.); (C.T.-C.); (J.M.M.D.)
| | | | - José María Meseguer Dueñas
- Centre for Biomaterials and Tissue Engineering, Universitat Politècnica de València, 46022 València, Spain; (J.M.-M.); (C.T.-C.); (J.M.M.D.)
- CIBER-BBN, Biomedical Research Networking Centre in Bioengineering, Biomaterials and Nanomedicine, 46022 València, Spain
| | - Ángel Serrano-Aroca
- Biomaterials and Bioengineering Lab, Centro de Investigación Traslacional San Alberto Magno, Universidad Católica de Valencia San Vicente Mártir, 46001 València, Spain
- Correspondence: (R.S.i.S.); (Á.S.-A.)
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28
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Talebian S, Mehrali M, Raad R, Safaei F, Xi J, Liu Z, Foroughi J. Electrically Conducting Hydrogel Graphene Nanocomposite Biofibers for Biomedical Applications. Front Chem 2020; 8:88. [PMID: 32175306 PMCID: PMC7056842 DOI: 10.3389/fchem.2020.00088] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2019] [Accepted: 01/27/2020] [Indexed: 11/13/2022] Open
Abstract
Conductive biomaterials have recently gained much attention, specifically owing to their application for electrical stimulation of electrically excitable cells. Herein, flexible, electrically conducting, robust fibers composed of both an alginate biopolymer and graphene components have been produced using a wet-spinning process. These nanocomposite fibers showed better mechanical, electrical, and electrochemical properties than did single fibers that were made solely from alginate. Furthermore, with the aim of evaluating the response of biological entities to these novel nanocomposite biofibers, in vitro studies were carried out using C2C12 myoblast cell lines. The obtained results from in vitro studies indicated that the developed electrically conducting biofibers are biocompatible to living cells. The developed hybrid conductive biofibers are likely to find applications as 3D scaffolding materials for tissue engineering applications.
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Affiliation(s)
- Sepehr Talebian
- Intelligent Polymer Research Institute, University of Wollongong, Wollongong, NSW, Australia
- Illawarra Health and Medical Research Institute, University of Wollongong, Wollongong, NSW, Australia
| | - Mehdi Mehrali
- Department of Mechanical Engineering, Technical University of Denmark, Lyngby, Denmark
| | - Raad Raad
- School of Electrical, Computer and Telecommunications Engineering, Faculty of Engineering and Information Sciences, University of Wollongong, Wollongong, NSW, Australia
| | - Farzad Safaei
- School of Electrical, Computer and Telecommunications Engineering, Faculty of Engineering and Information Sciences, University of Wollongong, Wollongong, NSW, Australia
| | - Jiangtao Xi
- School of Electrical, Computer and Telecommunications Engineering, Faculty of Engineering and Information Sciences, University of Wollongong, Wollongong, NSW, Australia
| | - Zhoufeng Liu
- School of Textile Engineering, Zhongyuan University of Technology, Zhengzhou, China
| | - Javad Foroughi
- Intelligent Polymer Research Institute, University of Wollongong, Wollongong, NSW, Australia
- Illawarra Health and Medical Research Institute, University of Wollongong, Wollongong, NSW, Australia
- School of Electrical, Computer and Telecommunications Engineering, Faculty of Engineering and Information Sciences, University of Wollongong, Wollongong, NSW, Australia
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29
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Zheng Q, Zhao L, Wang J, Wang S, Liu Y, Liu X. High-strength and high-toughness sodium alginate/polyacrylamide double physically crosslinked network hydrogel with superior self-healing and self-recovery properties prepared by a one-pot method. Colloids Surf A Physicochem Eng Asp 2020. [DOI: 10.1016/j.colsurfa.2019.124402] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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30
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Kong Y, Zhuang Y, Shi B. Tetracycline removal by double-metal-crosslinked alginate/graphene hydrogels through an enhanced Fenton reaction. JOURNAL OF HAZARDOUS MATERIALS 2020; 382:121060. [PMID: 31585409 DOI: 10.1016/j.jhazmat.2019.121060] [Citation(s) in RCA: 47] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/21/2019] [Revised: 08/13/2019] [Accepted: 08/20/2019] [Indexed: 06/10/2023]
Abstract
Polymer hydrogel usually has limited catalytic activity and stability in Fenton catalysis. Here, we presented for the first time the preparation of a novel double-metal-crosslinked alginate hydrogel using graphene oxide to facilitate the Fe(II)/Fe(III) redox cycles. Five multivalent metal cations were used as crosslinkers to prepare different alginate-GO-M (Fe(III), Fe(II), La(III), Ce(III), and Co(II)), and the effects of assisted metal cations (La(III), Ce(III), and Co(II)) on different Fe(II) bimetallic alginate-GO-Fe-M(AG-Fe-M) complexes were investigated. Double-metal-crosslinked alginate-GO hydrogels can degrade tetracycline much faster during the initial 10 min than single-metal-crosslinked hydrogels. In addition, the release of iron from AG-Fe-Ce (10.59 ppm) was less than that from AG-Fe-Co (21.57 ppm) and AG-Fe-La (25.6 ppm) during the Fenton reaction. More importantly, the AG-Fe-Ce did not release TOC and maintained most of the catalytic activity after four reuse cycles, confirmed its excellent stability. For the treatment of raw water containing a high proportion of proteinaceous matter and tetracycline, the AG-Fe-Ce significantly reduced the molecular weight of the dissolved organic matter. We deduced that the humic acid and protein show good complexation ability to tetracycline, thereby reduced its bioavailability. This study provides new insights into the synthesis of polymer catalysts for water treatment.
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Affiliation(s)
- Yan Kong
- Key Laboratory of Drinking Water Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China
| | - Yuan Zhuang
- Key Laboratory of Drinking Water Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China.
| | - Baoyou Shi
- Key Laboratory of Drinking Water Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China
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31
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Mansouri N, Al-Sarawi SF, Mazumdar J, Losic D. Advancing fabrication and properties of three-dimensional graphene–alginate scaffolds for application in neural tissue engineering. RSC Adv 2019; 9:36838-36848. [PMID: 35539075 PMCID: PMC9075535 DOI: 10.1039/c9ra07481c] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2019] [Accepted: 10/27/2019] [Indexed: 11/21/2022] Open
Abstract
Neural tissue engineering provides enormous potential for restoring and improving the function of diseased/damaged tissues and promising opportunities in regenerative medicine, stem cell technology, and drug discovery. The conventional 2D cell cultures have many limitations to provide informative and realistic neural interactions and network formation. Hence, there is a need to develop three-dimensional (3D) bioscaffolds to facilitate culturing cells with matched microenvironment for cell growth and interconnected pores for penetration and migration of cells. Herein, we report the synthesis and characterization of 3D composite bioscaffolds based on graphene-biopolymer with porous structure and improved performance for tissue engineering. A simple, eco-friendly synthetic method is introduced and optimized for synthesis of this hybrid fibrous scaffold by combining Graphene Oxide (GO) and Sodium Alginate (Na-ALG) which are specifically selected to match the mechanical strength of the central nervous system (CNS) tissue and provide porous structure for connective tissue engineering. Properties of the developed scaffold in terms of the structure, porosity, thermal stability, mechanical properties, and electrical conductivity are presented. These properties were optimised through key synthesis conditions including GO concentrations, reduction process and crosslinking time. In contrast to other studies, the presented structure maintains its stability in aqueous media and uses a bio-friendly reducing agent which enable the structure to enhance neuron cell interactions and act as nerve conduits for neurological diseases. In this study, a bio-fabrication method has been developed for the preparation of 3D graphene–alginate composite scaffolds with great potential for neural tissue engineering.![]()
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Affiliation(s)
- Negar Mansouri
- School of Electrical and Electronic Engineering
- University of Adelaide
- Adelaide
- Australia
| | - Said F. Al-Sarawi
- School of Electrical and Electronic Engineering
- University of Adelaide
- Adelaide
- Australia
| | - Jagan Mazumdar
- School of Electrical and Electronic Engineering
- University of Adelaide
- Adelaide
- Australia
| | - Dusan Losic
- School of Chemical Engineering and Advanced Materials
- University of Adelaide
- Adelaide
- Australia
- ARC Research Hub for Graphene Enabled Industry Transformation
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32
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Zhao W, Qi Y, Wang Y, Xue Y, Xu P, Li Z, Li Q. Morphology and Thermal Properties of Calcium Alginate/Reduced Graphene Oxide Composites. Polymers (Basel) 2018; 10:E990. [PMID: 30960915 PMCID: PMC6404074 DOI: 10.3390/polym10090990] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2018] [Revised: 09/03/2018] [Accepted: 09/04/2018] [Indexed: 11/16/2022] Open
Abstract
Calcium alginate (CaAlg) is a kind of biodegradable and eco-friendly functional material, and CaAlg/reduced graphene oxide (rGO) composites are expected to be applied as new textile, heat-generating, and flame-retardant materials. In this paper, the CaAlg/rGO composites were prepared by a sol-gel method and their morphological and thermal properties were studied. The results showed that the introduction of rGO can efficiently improve the thermal stability of CaAlg. Further study showed that rGO increased the carbon formation rate by 4.1%, indicating that the thermal stability was improved by the promotion of carbon formation. Moreover, the weight loss rate of the composites was faster at 180⁻200 °C than that of CaAlg, after which the rate was less comparatively, suggesting the better thermal stability of the composite. This maybe because the high heat transfer efficiency of rGO allowed the material to reach the temperature of the thermal decomposition of the glycan molecule chain within a short time, and then promoted carbon formation. The thermal cracking mechanism of the composites is proposed based on the experimental data.
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Affiliation(s)
- Wanting Zhao
- College of Chemistry and Chemical Engineering, Qingdao University, Qingdao 266071, China.
| | - Yan Qi
- College of Chemistry and Chemical Engineering, Qingdao University, Qingdao 266071, China.
| | - Yue Wang
- College of Chemistry and Chemical Engineering, Qingdao University, Qingdao 266071, China.
| | - Yun Xue
- College of Chemistry and Chemical Engineering, Qingdao University, Qingdao 266071, China.
| | - Peng Xu
- College of Chemistry and Chemical Engineering, Qingdao University, Qingdao 266071, China.
| | - Zichao Li
- College of Life Sciences, Qingdao University, Qingdao 266071, China.
| | - Qun Li
- College of Chemistry and Chemical Engineering, Qingdao University, Qingdao 266071, China.
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33
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Zhang Q, Huang X, Pu Y, Yi Y, Zhang T, Wang B. pH-sensitive and biocompatible quercetin-loaded GO-PEA-HA carrier improved antitumour efficiency and specificity. ARTIFICIAL CELLS NANOMEDICINE AND BIOTECHNOLOGY 2018; 46:S28-S37. [PMID: 30183379 DOI: 10.1080/21691401.2018.1489261] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
A novel drug carrier was designed based on a new biomaterial, that is, graphene oxide (GO), to improve the efficiency and specificity of anticancer drug. In this study, GO was successively modified with polyetheramine (PEA) and hyaluronic acid (HA). The carrier was utilized to load an antitumor component, that is, quercetin (Que), which was derived from traditional Chinese medicine, namely the pagoda tree flower bud. This drug delivery system (DDS) exhibited pH sensibility under subacid condition and good biocompatibility even when GO concentration reached 350 μg/mL. Moreover, the antitumor efficacy was doubly improved and more long-acting compared with Que alone. Results show that the GO-based material has potential clinical applications for antitumor drug delivery.
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Affiliation(s)
- Qi Zhang
- a Experiment Center for Teaching and Learning , Shanghai University of Traditional Chinese Medicine , Shanghai , China.,b School of Pharmacy , Shanghai University of Traditional Chinese Medicine , Shanghai , China
| | - Xing Huang
- a Experiment Center for Teaching and Learning , Shanghai University of Traditional Chinese Medicine , Shanghai , China.,b School of Pharmacy , Shanghai University of Traditional Chinese Medicine , Shanghai , China
| | - Yiqiong Pu
- a Experiment Center for Teaching and Learning , Shanghai University of Traditional Chinese Medicine , Shanghai , China
| | - Yaxiong Yi
- a Experiment Center for Teaching and Learning , Shanghai University of Traditional Chinese Medicine , Shanghai , China.,b School of Pharmacy , Shanghai University of Traditional Chinese Medicine , Shanghai , China
| | - Tong Zhang
- a Experiment Center for Teaching and Learning , Shanghai University of Traditional Chinese Medicine , Shanghai , China.,b School of Pharmacy , Shanghai University of Traditional Chinese Medicine , Shanghai , China
| | - Bing Wang
- a Experiment Center for Teaching and Learning , Shanghai University of Traditional Chinese Medicine , Shanghai , China.,b School of Pharmacy , Shanghai University of Traditional Chinese Medicine , Shanghai , China
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