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Gu D, Pan H, Xu S, Chen W, Zhu R, Jiang W, Pan W. Construction and Evaluation of Hyaluronic Acid-Coated Flurbiprofen-Layered Double Hydroxide Ocular Drug Delivery System. AAPS PharmSciTech 2022; 23:287. [PMID: 36266593 DOI: 10.1208/s12249-022-02418-2] [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: 06/23/2022] [Accepted: 09/09/2022] [Indexed: 11/30/2022] Open
Abstract
In this study, flurbiprofen (FB) was selected as the model drug, and hyaluronic acid-coated flurbiprofen-layered double hydroxide ophthalmic drug delivery system (HA-FB-LDH) was designed and prepared. In this system, the model drug flurbiprofen was intercalated in layered double hydroxide and coated with hyaluronic acid (HA), so as to prolong the corneal residence time and increase the corneal permeability of the drug. Layered double hydroxide (LDH) was prepared by alcohol-water coprecipitation method. Through single factor investigation, the optimum preparation conditions were obtained as follows: The Mg/Al ratio was 2:1, the reaction pH was 11.0, the hydrothermal reaction time was 24 h, and the hydrothermal reaction temperature was 100°C. Under these conditions, the particle size of LDH was 116.4 ± 0.8 nm, the potential was 42.2 ± 1.2 mV, and a relatively regular crystal structure could be had. Then FB was intercalated into the LDH layer to prepare flurbiprofen-layered double hydroxide (FB-LDH). In the end, HA-FB-LDH was prepared by the stirring-ultrasonic method, in which through prescription screening, the molecular weight of HA was 200-400 kDa and the concentration of HA solution was 1.25 mg·mL -1, the final particle size of HA-FB-LDH was 185.8 ± 3.3 nm, and potential of - 31.4 ± 0.7 mV. The successful loading of FB and the coating of HA were verified by XRD, FTIR, TGA, TEM, and other characterization methods. The results of in vitro stability experiment indicated that the coating of HA could significantly enhance the stability of LDH in the presence of electrolytes. The in vitro release results suggested that the cumulative release amounts of FB-LDH and HA-FB-LDH within 12 h were 92.99 ± 0.37% and 74.82 ± 0.29% respectively, showing a certain sustained release effect. At the same time, the release mechanism of FB-LDH was preliminarily explored by in vitro release experiment, which proved that the release mechanism of FB-LDH was mainly ion exchange. The results of in vivo ocular irritation experiments demonstrated that the ophthalmic preparation studied in this paper was safe and non-irritating. The results of tear pharmacokinetics in rabbits showed that the area under the curve(AUC), the average residence time (MRT), and the highest concentration (Cmax) in tears in the HA-FB-LDH group were 4.43, 4.48, and 2.27 times higher than those in eye drops group separately. Furthermore, the AUC of the HA-FB-LDH group was 1.48 times higher than that of the FB-LDH group. The above results suggested that HA-FB-LDH could improve the precorneal residence time. The results of aqueous humor pharmacokinetics in rabbits indicated that the AUC, MRT, and maximum concentration (Cmax) in aqueous humor in the HA-FB-LDH group were 6.88, 2.15, and 4.08 times of those in the eye drop group respectively. Additionally, the AUC and MRT of the HA-FB-LDH group were 1.55 and 1.63 times those of the FB-LDH group separately. These mentioned findings verified that HA-FB-LDH could enhance the corneal permeability of the drug. The fluorescent substance-fluoresce isothiocyanate (FITC) was substituted for FB intercalation in LDH for in vitro tissue imaging study of rabbits, whose results stated clearly that FITC-LDH and HA-FITC-LDH could both prolong the precorneal residence time of drugs, and HA-FITC-LDH could increase the corneal permeability of the drug to a certain extent. To sum up, HA-FB-LDH, which can overcome the shortcomings of low bioavailability of traditional eye drops to a certain degree, is a safe and effective ophthalmic drug delivery system.
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Affiliation(s)
- Donghao Gu
- School of Pharmacy, Shenyang Pharmaceutical University, 103 Wenhua Road, 1, Shenyang, 110016, China.,Liaoning University, Shenyang, 110036, China
| | - Hao Pan
- School of Pharmacy, Shenyang Pharmaceutical University, 103 Wenhua Road, 1, Shenyang, 110016, China.,Liaoning University, Shenyang, 110036, China
| | - Shuo Xu
- School of Pharmacy, Shenyang Pharmaceutical University, 103 Wenhua Road, 1, Shenyang, 110016, China.,Liaoning University, Shenyang, 110036, China
| | - Wenyue Chen
- School of Pharmacy, Shenyang Pharmaceutical University, 103 Wenhua Road, 1, Shenyang, 110016, China.,Liaoning University, Shenyang, 110036, China
| | - Renfang Zhu
- School of Pharmacy, Shenyang Pharmaceutical University, 103 Wenhua Road, 1, Shenyang, 110016, China.,Liaoning University, Shenyang, 110036, China
| | - Wenjing Jiang
- School of Pharmacy, Shenyang Pharmaceutical University, 103 Wenhua Road, 1, Shenyang, 110016, China.,Liaoning University, Shenyang, 110036, China
| | - Weisan Pan
- School of Pharmacy, Shenyang Pharmaceutical University, 103 Wenhua Road, 1, Shenyang, 110016, China. .,Liaoning University, Shenyang, 110036, China.
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Li C, Jing H, Wu Z, Jiang D. Layered Double Hydroxides for Photo(electro)catalytic Applications: A Mini Review. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:nano12193525. [PMID: 36234654 PMCID: PMC9565588 DOI: 10.3390/nano12193525] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/05/2022] [Revised: 09/25/2022] [Accepted: 10/05/2022] [Indexed: 05/16/2023]
Abstract
Chemical energy conversion strategies by photocatalysis and electrocatalysis are promising approaches to alleviating our energy shortages and environmental issues. Due to the 2D layer structure, adjustable composition, unique thermal decomposition and memory properties, abundant surface hydroxyl, and low cost, layered double hydroxides (LDHs) have attracted extensive attention in electrocatalysis, photocatalysis, and photoelectrocatalysis. This review summarizes the main structural characteristics of LDHs, including tunable composition, thermal decomposition and memory properties, delaminated layer, and surface hydroxyl. Next, the influences of the structural characteristics on the photo(electro)catalytic process are briefly introduced to understand the structure-performance correlations of LDHs materials. Recent progress and advances of LDHs in photocatalysis and photoelectrocatalysis applications are summarized. Finally, the challenges and future development of LDHs are prospected from the aspect of structural design and exploring structure-activity relationships in the photo(electro)catalysis applications.
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Affiliation(s)
- Cheng Li
- School of Physics and Electronic Sciences, Changsha University of Science and Technology, Changsha 410114, China
| | - Huihua Jing
- Hunan Provincial Institute of Product and Goods Quality Inspection, Changsha 410116, China
| | - Zhong Wu
- Tianjin Key Laboratory of Composite and Functional Materials, Key Laboratory of Advanced Ceramics and Machining Technology (Ministry of Education), School of Materials Science and Engineering, Tianjin University, Tianjin 300072, China
- Correspondence: (Z.W.); (D.J.)
| | - Denghui Jiang
- School of Physics and Electronic Sciences, Changsha University of Science and Technology, Changsha 410114, China
- Hunan Provincial Key Laboratory of Flexible Electronic Materials Genome Engineering, Changsha University of Science and Technology, Changsha 410114, China
- Hunan Province Higher Education Key Laboratory of Modeling and Monitoring on the Near-Earth Electromagnetic Environments, Changsha University of Science and Technology, Changsha 410114, China
- Correspondence: (Z.W.); (D.J.)
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Phan VHG, Mathiyalagan R, Nguyen MT, Tran TT, Murugesan M, Ho TN, Huong H, Yang DC, Li Y, Thambi T. Ionically cross-linked alginate-chitosan core-shell hydrogel beads for oral delivery of insulin. Int J Biol Macromol 2022; 222:262-271. [PMID: 36150568 DOI: 10.1016/j.ijbiomac.2022.09.165] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2022] [Revised: 09/09/2022] [Accepted: 09/18/2022] [Indexed: 11/05/2022]
Abstract
Here, core-shell hydrogel beads for oral insulin delivery at intestine was reported, which was a target site for insulin absorption. The core-shell hydrogel beads were prepared using naturally derived alginate and chitosan polysaccharides by simple dropping technique. In order to effectively control leakage of insulin from core-shell hydrogel beads, insulin was embedded into the layered double hydroxides (LDHs). LDH/insulin-loaded complexes were firstly coated with chitosan, and then coated with alginate to generate core-shell hydrogel beads. The biocompatibility and angiogenic response of core-shell hydrogel beads were evaluated by direct contact of the beads with chick embryo chorioallantoic membrane, which indicates safety of the core-shell beads. The beads successfully retained the insulin within the core-shell structure at pH 1.2, indicating that insulin had a good protective effect in harsh acidic environments. Interestingly, insulin release starts at the simulated intestinal fluid (pH 6.8) and continue to release for 24 h in a sustained manner.
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Affiliation(s)
- V H Giang Phan
- Biomaterials and Nanotechnology Research Group, Faculty of Applied Sciences, Ton Duc Thang University, Ho Chi Minh City, Vietnam.
| | - Ramya Mathiyalagan
- Graduate School of Biotechnology, College of Life Sciences, Kyung Hee University, Yongin si, Gyeonggi do 17104, Republic of Korea
| | - Minh-Thu Nguyen
- Biomaterials and Nanotechnology Research Group, Faculty of Applied Sciences, Ton Duc Thang University, Ho Chi Minh City, Vietnam
| | - Thanh-Tuyen Tran
- Biomaterials and Nanotechnology Research Group, Faculty of Applied Sciences, Ton Duc Thang University, Ho Chi Minh City, Vietnam
| | - Mohanapriya Murugesan
- Graduate School of Biotechnology, College of Life Sciences, Kyung Hee University, Yongin si, Gyeonggi do 17104, Republic of Korea
| | - Tuyet-Nhung Ho
- Biomaterials and Nanotechnology Research Group, Faculty of Applied Sciences, Ton Duc Thang University, Ho Chi Minh City, Vietnam
| | - Ha Huong
- Biomaterials and Nanotechnology Research Group, Faculty of Applied Sciences, Ton Duc Thang University, Ho Chi Minh City, Vietnam
| | - Deok Chun Yang
- Graduate School of Biotechnology, College of Life Sciences, Kyung Hee University, Yongin si, Gyeonggi do 17104, Republic of Korea
| | - Yi Li
- College of Materials and Textile Engineering & Nanotechnology Research Institute, Jiaxing University, Jiaxing 314001, Zhejiang Province, PR China.
| | - Thavasyappan Thambi
- Graduate School of Biotechnology, College of Life Sciences, Kyung Hee University, Yongin si, Gyeonggi do 17104, Republic of Korea; School of Chemical Engineering, Sungkyunkwan University, Suwon 16419, Republic of Korea.
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54
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Chen Y, Li T, Qiu X, Shang X. Eu3+-doped MgAl LDH with fluorescence as carrier for 5-fluorouracil: intercalation and release. RESEARCH ON CHEMICAL INTERMEDIATES 2022. [DOI: 10.1007/s11164-022-04828-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Hu T, Gu Z, Williams GR, Strimaite M, Zha J, Zhou Z, Zhang X, Tan C, Liang R. Layered double hydroxide-based nanomaterials for biomedical applications. Chem Soc Rev 2022; 51:6126-6176. [PMID: 35792076 DOI: 10.1039/d2cs00236a] [Citation(s) in RCA: 95] [Impact Index Per Article: 47.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Against the backdrop of increased public health awareness, inorganic nanomaterials have been widely explored as promising nanoagents for various kinds of biomedical applications. Layered double hydroxides (LDHs), with versatile physicochemical advantages including excellent biocompatibility, pH-sensitive biodegradability, highly tunable chemical composition and structure, and ease of composite formation with other materials, have shown great promise in biomedical applications. In this review, we comprehensively summarize the recent advances in LDH-based nanomaterials for biomedical applications. Firstly, the material categories and advantages of LDH-based nanomaterials are discussed. The preparation and surface modification of LDH-based nanomaterials, including pristine LDHs, LDH-based nanocomposites and LDH-derived nanomaterials, are then described. Thereafter, we systematically describe the great potential of LDHs in biomedical applications including drug/gene delivery, bioimaging diagnosis, cancer therapy, biosensing, tissue engineering, and anti-bacteria. Finally, on the basis of the current state of the art, we conclude with insights on the remaining challenges and future prospects in this rapidly emerging field.
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Affiliation(s)
- Tingting Hu
- State Key Laboratory of Chemical Resource Engineering, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, P. R. China.
| | - Zi Gu
- School of Chemical Engineering and Australian Centre for NanoMedicine (ACN), University of New South Wales, Sydney, NSW 2052, Australia
| | - Gareth R Williams
- UCL School of Pharmacy, University College London, 29-39 Brunswick Square, London WC1N 1AX, UK
| | - Margarita Strimaite
- UCL School of Pharmacy, University College London, 29-39 Brunswick Square, London WC1N 1AX, UK
| | - Jiajia Zha
- Department of Electrical Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong.
| | - Zhan Zhou
- College of Chemistry and Chemical Engineering, Henan Key Laboratory of Function-Oriented Porous Materials, Luoyang Normal University, Luoyang, 471934, P. R. China
| | - Xingcai Zhang
- School of Engineering and Applied Sciences, Harvard University, Cambridge, Massachusetts 02138, USA.,School of Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA.
| | - Chaoliang Tan
- Department of Electrical Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong. .,Center of Super-Diamond and Advanced Films (COSDAF), City University of Hong Kong, Kowloon, Hong Kong.,Shenzhen Research Institute, City University of Hong Kong, Shenzhen, 518057, P. R. China
| | - Ruizheng Liang
- State Key Laboratory of Chemical Resource Engineering, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, P. R. China.
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56
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Jing G, Yang L, Wang H, Niu J, Li Y, Wang S. Interference of layered double hydroxide nanoparticles with pathways for biomedical applications. Adv Drug Deliv Rev 2022; 188:114451. [PMID: 35843506 DOI: 10.1016/j.addr.2022.114451] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Revised: 06/18/2022] [Accepted: 07/09/2022] [Indexed: 11/01/2022]
Abstract
Recent decades have witnessed a surge of explorations into the application of multifarious materials, especially biomedical applications. Among them, layered double hydroxides (LDHs) have been widely developed as typical inorganic layer materials to achieve remarkable advancements. Multiple physicochemical properties endow LDHs with excellent merits in biomedical applications. Moreover, LDH nanoplatforms could serve as "molecular switches", which are capable of the controlled release of payloads under specific physiological pH conditions but are stable during circulation in the bloodstream. In addition, LDHs themselves are composed of several specific cations and possess favorable biological effects or regulatory roles in various cellular functions. These advantages have caused LDHs to become increasingly of interest in the area of nanomedicine. Recent efforts have been devoted to revealing the potential factors that interfere with the biological pathways of LDH-based nanoparticles, such as their applications in shaping the functions of immune cells and in determining the fate of stem cells and tumor treatments, which are comprehensively described herein. In addition, several intracellular signaling pathways interfering with by LDHs in the above applications were also systematically expatiated. Finally, the future development and challenges of LDH-based nanomedicine are discussed in the context of the ultimate goal of practical clinical application.
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Affiliation(s)
- Guoxin Jing
- Research Center for Translational Medicine at East Hospital, School of Life Science and Technology, Tongji University, Shanghai, PR China
| | - Linnan Yang
- Central Laboratory, First Affiliated Hospital, Anhui Medical University, Hefei, PR China
| | - Hong Wang
- Research Center for Translational Medicine at East Hospital, School of Life Science and Technology, Tongji University, Shanghai, PR China
| | - Jintong Niu
- Research Center for Translational Medicine at East Hospital, School of Life Science and Technology, Tongji University, Shanghai, PR China
| | - Youyuan Li
- Research Center for Translational Medicine at East Hospital, School of Life Science and Technology, Tongji University, Shanghai, PR China
| | - Shilong Wang
- Research Center for Translational Medicine at East Hospital, School of Life Science and Technology, Tongji University, Shanghai, PR China.
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57
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Zhu S, Liu Y, Gu Z, Zhao Y. Research trends in biomedical applications of two-dimensional nanomaterials over the last decade - A bibliometric analysis. Adv Drug Deliv Rev 2022; 188:114420. [PMID: 35835354 DOI: 10.1016/j.addr.2022.114420] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Revised: 06/20/2022] [Accepted: 07/04/2022] [Indexed: 11/01/2022]
Abstract
Two-dimensional (2D) nanomaterials with versatile properties have been widely applied in the field of biomedicine. Despite various studies having reviewed the development of biomedical 2D nanomaterials, there is a lack of a study that objectively summarizes and analyzes the research trend of this important field. Here, we employ a series of bibliometric methods to identify the development of the 2D nanomaterial-related biomedical field during the past 10 years from a holistic point of view. First, the annual publication/citation growth, country/institute/author distribution, referenced sources, and research hotspots are identified. Thereafter, based on the objectively identified research hotspots, the contributions of 2D nanomaterials to the various biomedical subfields, including those of biosensing, imaging/therapy, antibacterial treatment, and tissue engineering are carefully explored, by considering the intrinsic properties of the nanomaterials. Finally, prospects and challenges have been discussed to shed light on the future development and clinical translation of 2D nanomaterials. This review provides a novel perspective to identify and further promote the development of 2D nanomaterials in biomedical research.
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Affiliation(s)
- Shuang Zhu
- CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing 100190, China; CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics, Beijing 100049, China; College of Materials Science and Optoelectronic Technology, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yaping Liu
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics, Beijing 100049, China; The First Affiliated Hospital of University of Science and Technology of China, Division of Life Sciences and Medicine, University of Science and Technology of China, Anhui 230001, China
| | - Zhanjun Gu
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics, Beijing 100049, China; College of Materials Science and Optoelectronic Technology, University of Chinese Academy of Sciences, Beijing 100049, China.
| | - Yuliang Zhao
- CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing 100190, China; College of Materials Science and Optoelectronic Technology, University of Chinese Academy of Sciences, Beijing 100049, China
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58
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An Advanced Approach for MgZnAl-LDH Catalysts Synthesis Used in Claisen-Schmidt Condensation. Catalysts 2022. [DOI: 10.3390/catal12070759] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023] Open
Abstract
Using organic-base tetramethylammonium hydroxide (TMAH) is a viable, cheap, and fast option for the synthesis of MgZnAl-LDH-type materials by both co-precipitation and mechano-chemical methods. TMAH presents several advantages, such as the smaller quantity of water required in the washing step compared to the use of inorganic alkalis, the prevention of LDH contamination with alkali cations, and its action as a template molecule in texture tailoring. It also has disadvantages, such as its presence in small quantities in the resulting layered materials. Regardless of the use of organic/inorganic bases and co-precipitation/mechano-chemical methods, zincite stable phase was found in all the synthesized solids. The basicity of catalysts followed the trend: mixed oxides > reconstructed > parent LDH. The memory effect of LDH was supported only by the presence of Mg and Al cations, while Zn remained as a zincite stable phase. The catalytic activities for Claisen–Schmidt condensation of benzaldehyde with cyclohexanone provided values higher than 90% after 2 h, with a total selectivity toward 2,6-dibenzylidenecyclohexanone, while self-condensation of cyclohexanone yielded no more than 7.29% after 5 h. These behaviors depended on catalyst basicity as well as on the planar rigidity of the compound.
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Hu T, Zhou Z, Zha J, Williams GR, Wu Z, Zhao W, Shen W, Li H, Weng X, Liang R, Tan C. Ternary NiCoTi-layered double hydroxide nanosheets as a pH-responsive nanoagent for photodynamic/chemodynamic synergistic therapy. FUNDAMENTAL RESEARCH 2022. [DOI: 10.1016/j.fmre.2022.06.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
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60
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Structural Aspects of “Memory Effect” for MgGa LDHs: New Data Obtained by Simulation of XRD Patterns for 1D Disordered Crystals. CRYSTALS 2022. [DOI: 10.3390/cryst12050629] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Simulation of diffraction patterns for 1D disordered crystals was used to investigate the structure of the initial CO32− containing MgGa LDHs with a different Mg2+/(Mg2+ + Ga3+) ratio equal to 0.67, 0.75, and 0.80; mixed oxides obtained by calcination of LDHs at a temperature of 550 °C; and the hydroxide obtained by hydration of MgGa oxide with the Mg2+ content of 0.80. The initial LDHs contain lamellar inclusions of manasseite structure (polytype 2H1) in the hydrotalcite structure (3R1). A loss of water at 200 °C leads to the formation of a metastable dehydrated phase where layers are packed, as in polytypes 3R2 and 1H, with turbostratic disorder. The structure of mixed oxides is also layered and consists of periclase-like octahedral layers and spinel-like octahedral-tetrahedral layers. Hydration of the oxides results in restoring the initial layered hydrotalcite structure (polytype 3R1) for Mg2+ mole fractions 0.67 and 0.75. For the Mg2+ content of 0.80, the phase composition is represented by the hydroxide with hydrotalcite structure and the layered mixed hydroxide with the alternation of hydrotalcite and brucite lamellar domains, which was also revealed by calculation of diffraction patterns using models of 1D disordered crystals.
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Kamibe T, Guégan R, Kunitake M, Tsukahara T, Idota N, Sugahara Y. Preparation of double-layered nanosheets containing pH-responsive polymer networks in the interlayers and their conversion into single-layered nanosheets through the cleavage of cross-linking points. Dalton Trans 2022; 51:6264-6274. [PMID: 35377373 DOI: 10.1039/d1dt04355b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Double-layered nanosheets containing pH-cleavable polymer networks between two niobate layers were prepared by copolymerization of N-isopropylacrylamide and an acid-degradable crosslinker via surface-initiated atom transfer radical polymerization on the surface of hydrated interlayers (interlayer I) of K4Nb6O17·3H2O and subsequent exfoliation by the introduction of tetra-n-butylammonium (TBA) ions into anhydrous interlayers (interlayer II). Moreover, the double-layered nanosheets were converted into single-layered nanosheets by the cleavage of cross-linking points in polymer networks by lowering pH. Fourier transform infrared spectroscopy (FTIR) and thermogravimetry (TG) results showed that polymer networks were present, and nanosheets with a thickness of 10.8 ± 1.6 nm were observed by using an atomic force microscope (AFM) after exfoliation using TBA ions. The thickness of the nanosheets was decreased to 6.1 ± 0.9 nm by lowering the pH, and proton nuclear magnetic resonance (1H NMR) and UV-vis spectroscopy showed that the degradation of the cross-linkers proceeded, suggesting that the cleavage of the cross-linking points led to the conversion of double-layered nanosheets into single-layered nanosheets.
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Affiliation(s)
- Takuma Kamibe
- Department of Applied Chemistry, School of Advanced Science and Engineering, Waseda University, 3-4-1 Okubo, Shinjuku-ku, Tokyo 169-8555, Japan.
| | - Régis Guégan
- Global Center for Science and Engineering, Waseda University, 3-4-1 Okubo, Shinjuku-ku, Tokyo 169-8555, Japan
| | - Masashi Kunitake
- Institute of Industrial Nanomaterials, Kumamoto University, 2-39-1, Kurokami, Chuo-ku, Kumamoto 860-8555, Japan
| | - Takehiko Tsukahara
- Laboratory for Zero-Carbon Energy, Institute of Innovative Research, Tokyo Institute of Technology, 2-12-1-N1-6, Ookayama, Meguro-ku, Tokyo 152-8550, Japan.
| | - Naokazu Idota
- Laboratory for Zero-Carbon Energy, Institute of Innovative Research, Tokyo Institute of Technology, 2-12-1-N1-6, Ookayama, Meguro-ku, Tokyo 152-8550, Japan. .,Kagami Memorial Research Institute for Materials Science and Technology, Waseda University, 2-8-26 Nishiwaseda, Shinjuku-ku, Tokyo 169-0051, Japan
| | - Yoshiyuki Sugahara
- Department of Applied Chemistry, School of Advanced Science and Engineering, Waseda University, 3-4-1 Okubo, Shinjuku-ku, Tokyo 169-8555, Japan. .,Kagami Memorial Research Institute for Materials Science and Technology, Waseda University, 2-8-26 Nishiwaseda, Shinjuku-ku, Tokyo 169-0051, Japan
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Effect of Cu2+ on the optical properties of zinc hydroxy-carbonate phosphors prepared in different synthesis conditions. CHEMICAL PAPERS 2022. [DOI: 10.1007/s11696-022-02135-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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63
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Nocchetti M, Boccalon E, Pica M, Giordano NMR, Finori F, Pietrella D, Cipiciani A. Overcoming Antibiotic Resistance: Playing the 'Silver Nanobullet' Card. MATERIALS 2022; 15:ma15030932. [PMID: 35160881 PMCID: PMC8839980 DOI: 10.3390/ma15030932] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/27/2021] [Revised: 01/17/2022] [Accepted: 01/22/2022] [Indexed: 12/10/2022]
Abstract
Enhancing the antibacterial activity of old antibiotics by a multitarget approach, such as combining antibiotics with metal nanoparticles, is a valuable strategy to overcome antibacterial resistance. In this work, the synergistic antimicrobial effect of silver nanoparticles and antibiotics, immobilized on a solid support, was investigated. Nanometric layered double hydroxides (LDH) based on Zn(II) and Al(III) were prepared by the double microemulsion technique. The dual function of LDH as an anionic exchanger and support for metal nanoparticles was exploited to immobilize both silver and antibiotics. Cefazolin (CFZ), a β-lactam, and nalidixic acid (NAL), a quinolone, were selected and intercalated into LDH obtaining ZnAl-CFZ and ZnAl-NAL samples. These samples were used for the growth of silver nanoparticles with dimension ranging from 2.5 to 8 nm. Silver and antibiotics release profiles, from LDH loaded with antibiotics and Ag/antibiotics, were evaluated in two different media: water and phosphate buffer. Interestingly, the release profiles are affected by both the acceptor media and the presence of silver. The synergistic antibacterial activity of LDH containing both silver and antibiotics were investigated on gram-positives (Staphylococcus aureus and Streptococcus pneumoniae) and gram-negatives (Pseudomonas aeruginosa) and compared with the plain antimicrobials and LDH containing only antibiotics or silver.
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Affiliation(s)
- Morena Nocchetti
- Department of Pharmaceutical Sciences, University of Perugia, Via del Liceo, 1, 06123 Perugia, Italy; (M.P.); (N.M.R.G.)
- Correspondence:
| | - Elisa Boccalon
- Department of Industrial Engineering, University of Salerno, Via Giovanni Paolo II, 132, 84084 Fisciano, Salerno, Italy;
| | - Monica Pica
- Department of Pharmaceutical Sciences, University of Perugia, Via del Liceo, 1, 06123 Perugia, Italy; (M.P.); (N.M.R.G.)
| | | | - Francesco Finori
- Department of Chemistry, Biology and Biotechnology, University of Perugia, Via Elce di Sotto, 8, 06123 Perugia, Italy; (F.F.); (A.C.)
| | - Donatella Pietrella
- Microbiology and Clinical Microbiology, Department of Medicine and Surgery, University of Perugia, Piazzale Gambuli, 1, 06129 Perugia, Italy;
| | - Antonio Cipiciani
- Department of Chemistry, Biology and Biotechnology, University of Perugia, Via Elce di Sotto, 8, 06123 Perugia, Italy; (F.F.); (A.C.)
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Thomas AM, Yoon C, Ippili S, Jella V, Yang TY, Yoon G, Yoon SG. High-Performance Flexible Ultraviolet Photodetectors Based on Facilely Synthesized Ecofriendly ZnAl:LDH Nanosheets. ACS APPLIED MATERIALS & INTERFACES 2021; 13:61434-61446. [PMID: 34908392 DOI: 10.1021/acsami.1c19313] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Recent studies have focused on the development of efficient, flexible, and highly sensitive ultraviolet photodetectors (UV PDs) with various wide band-gap materials. In the present study, the application of environmentally friendly zinc-aluminum layered double hydroxide (ZnAl-CO3:LDH) is demonstrated for a high-performance, flexible UV PD. The vertically oriented ZnAl:LDH nanosheets (ZnAl:LDH Ns) are facilely synthesized by dipping the sputtered 10 wt % aluminum-doped zinc oxide thin films in deionized water at room temperature. Without passivation, the UV PDs exhibit an exceptional light-to-dark current ratio of 104 and a responsivity of ∼34.7 mA/W at a bias of 1 V. Moreover, the spectral responsivity and detectivity are enhanced to ∼148.3 mA/W and 2.5 × 1012 Jones, respectively, by passivating the ZnAl:LDH Ns with polydimethylsiloxane (PDMS), thus making the device suitable for application in UV detectors. In addition, the ambient atmosphere effect on PD performance, which elucidates the clear understanding of the PD working mechanism, is also investigated. The passivation of the Ns by PDMS also helps to enhance the mechanical robustness and long-term stability of the PD. The methodology demonstrated herein highlights the potential of the ZnAl:LDH material in realizing the next generation of flexible UV PDs.
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Affiliation(s)
- Alphi Maria Thomas
- Department of Materials Science and Engineering, Chungnam National University, Daeduk Science Town, 34134 Daejeon, Republic of Korea
| | - Chongsei Yoon
- School of Electrical Engineering, Korea Advanced Institute of Science and Technology, 291 Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
| | - Swathi Ippili
- Department of Materials Science and Engineering, Chungnam National University, Daeduk Science Town, 34134 Daejeon, Republic of Korea
| | - Venkatraju Jella
- Department of Materials Science and Engineering, Chungnam National University, Daeduk Science Town, 34134 Daejeon, Republic of Korea
| | - Tae-Youl Yang
- Department of Materials Science and Engineering, Chungnam National University, Daeduk Science Town, 34134 Daejeon, Republic of Korea
| | - Giwan Yoon
- School of Electrical Engineering, Korea Advanced Institute of Science and Technology, 291 Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
| | - Soon-Gil Yoon
- Department of Materials Science and Engineering, Chungnam National University, Daeduk Science Town, 34134 Daejeon, Republic of Korea
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Wang Z, Yang H, Bai Y, Cheng L, Zhu R. rBMSC osteogenic differentiation enhanced by graphene quantum dots loaded with immunomodulatory layered double hydroxide nanoparticles. Biomed Mater 2021; 17. [PMID: 34905741 DOI: 10.1088/1748-605x/ac4324] [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] [Received: 08/31/2021] [Accepted: 12/14/2021] [Indexed: 11/11/2022]
Abstract
Bone tissue defects caused by disease, trauma, aging or genetic factors emerged as one of the main factors that endanger human health. At present, advanced development of bone tissue engineering and regenerative medicine focused on the biomaterials regulated stem cell for responsive differentiation. In vivo transplantation of allogeneic bone materials has the needs of both osteogenic and immune regulation function. In this study, we utilized the extensively proved biocompatible layered double hydroxide (LDH) nanoparticles as the nanocarrier of graphene quantum dots (GQD), the functional loading was validated by characteristics analysis of scanning electron microscopy, surface zeta potential, X-ray diffraction and fourier transform infrared spectroscopy. Further, we investigated the cellular uptake of nanoparticles in rat bone marrow derived mesenchymal stem cells, the significant enhanced endocytosis was occurred in LDH-GQD treated groups. The enhanced osteogenic differentiation abilities of LDH-GQD were systematically investigated through alkaline phosphatase staining, alizarin red staining and qPCR analysis. In addition, the anti-inflammatory regulation of LDH facilitated the phenotypic transition of macrophage in LDH-GQD nanocomposites. Overall, the successful construction and functional validation of nanomaterials in this study will provide clinical therapeutic potential in bone defects regeneration.
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Affiliation(s)
- Zhaojie Wang
- Tongji University, 1239 Siping Road, Shanghai, 200092, CHINA
| | - Huiyi Yang
- Tongji University, 1239 Siping Road, Shanghai, 200092, CHINA
| | - Yuxin Bai
- Tongji University, 1239 Siping Road, Shanghai, 200092, CHINA
| | - Liming Cheng
- Tongji University, 1239 Siping Road, Shanghai, 200092, CHINA
| | - Rongrong Zhu
- Tongji University, 1239 Siping Road, Shanghai, 200092, CHINA
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Manisekaran R, García-Contreras R, Rasu Chettiar AD, Serrano-Díaz P, Lopez-Ayuso CA, Arenas-Arrocena MC, Hernández-Padrón G, López-Marín LM, Acosta-Torres LS. 2D Nanosheets-A New Class of Therapeutic Formulations against Cancer. Pharmaceutics 2021; 13:1803. [PMID: 34834218 PMCID: PMC8620729 DOI: 10.3390/pharmaceutics13111803] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2021] [Revised: 07/14/2021] [Accepted: 10/20/2021] [Indexed: 12/19/2022] Open
Abstract
Researchers in cancer nanomedicine are exploring a revolutionary multifaceted carrier for treatment and diagnosis, resulting in the proposal of various drug cargos or "magic bullets" in this past decade. Even though different nano-based complexes are registered for clinical trials, very few products enter the final stages each year because of various issues. This prevents the formulations from entering the market and being accessible to patients. In the search for novel materials, the exploitation of 2D nanosheets, including but not limited to the highly acclaimed graphene, has created extensive interest for biomedical applications. A unique set of properties often characterize 2D materials, including semiconductivity, high surface area, and their chemical nature, which allow simple decoration and functionalization procedures, structures with high stability and targeting properties, vectors for controlled and sustained release of drugs, and materials for thermal-based therapies. This review discusses the challenges and opportunities of recently discovered 2D nanosheets for cancer therapeutics, with special attention paid to the most promising design technologies and their potential for clinical translation in the future.
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Affiliation(s)
- Ravichandran Manisekaran
- Laboratorio de Investigación Interdisciplinaria, Área de Nanoestructuras y Biomateriales, Escuela Nacional de Estudios Superiores Unidad León, Universidad Nacional Autónoma de México, Boulevard UNAM No. 2011, Predio El Saucillo y El Potrero, Guanajuato 37689, Mexico; (R.G.-C.); (P.S.-D.); (C.A.L.-A.); (M.C.A.-A.)
| | - René García-Contreras
- Laboratorio de Investigación Interdisciplinaria, Área de Nanoestructuras y Biomateriales, Escuela Nacional de Estudios Superiores Unidad León, Universidad Nacional Autónoma de México, Boulevard UNAM No. 2011, Predio El Saucillo y El Potrero, Guanajuato 37689, Mexico; (R.G.-C.); (P.S.-D.); (C.A.L.-A.); (M.C.A.-A.)
| | - Aruna-Devi Rasu Chettiar
- Facultad de Química, Materiales-Energía, Universidad Autónoma de Querétaro, Santiago de Querétaro 76010, Mexico;
| | - Paloma Serrano-Díaz
- Laboratorio de Investigación Interdisciplinaria, Área de Nanoestructuras y Biomateriales, Escuela Nacional de Estudios Superiores Unidad León, Universidad Nacional Autónoma de México, Boulevard UNAM No. 2011, Predio El Saucillo y El Potrero, Guanajuato 37689, Mexico; (R.G.-C.); (P.S.-D.); (C.A.L.-A.); (M.C.A.-A.)
| | - Christian Andrea Lopez-Ayuso
- Laboratorio de Investigación Interdisciplinaria, Área de Nanoestructuras y Biomateriales, Escuela Nacional de Estudios Superiores Unidad León, Universidad Nacional Autónoma de México, Boulevard UNAM No. 2011, Predio El Saucillo y El Potrero, Guanajuato 37689, Mexico; (R.G.-C.); (P.S.-D.); (C.A.L.-A.); (M.C.A.-A.)
| | - Ma Concepción Arenas-Arrocena
- Laboratorio de Investigación Interdisciplinaria, Área de Nanoestructuras y Biomateriales, Escuela Nacional de Estudios Superiores Unidad León, Universidad Nacional Autónoma de México, Boulevard UNAM No. 2011, Predio El Saucillo y El Potrero, Guanajuato 37689, Mexico; (R.G.-C.); (P.S.-D.); (C.A.L.-A.); (M.C.A.-A.)
| | - Genoveva Hernández-Padrón
- Centro de Física Aplicada y Tecnología Avanzada, Universidad Nacional Autónoma de México, Campus Juriquilla, Juriquilla 76230, Mexico; (G.H.-P.); (L.M.L.-M.)
| | - Luz M. López-Marín
- Centro de Física Aplicada y Tecnología Avanzada, Universidad Nacional Autónoma de México, Campus Juriquilla, Juriquilla 76230, Mexico; (G.H.-P.); (L.M.L.-M.)
| | - Laura Susana Acosta-Torres
- Laboratorio de Investigación Interdisciplinaria, Área de Nanoestructuras y Biomateriales, Escuela Nacional de Estudios Superiores Unidad León, Universidad Nacional Autónoma de México, Boulevard UNAM No. 2011, Predio El Saucillo y El Potrero, Guanajuato 37689, Mexico; (R.G.-C.); (P.S.-D.); (C.A.L.-A.); (M.C.A.-A.)
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Kim A, Varga I, Adhikari A, Patel R. Recent Advances in Layered Double Hydroxide-Based Electrochemical and Optical Sensors. NANOMATERIALS (BASEL, SWITZERLAND) 2021; 11:2809. [PMID: 34835574 PMCID: PMC8624839 DOI: 10.3390/nano11112809] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/07/2021] [Revised: 10/13/2021] [Accepted: 10/15/2021] [Indexed: 11/17/2022]
Abstract
Layered double hydroxides (LDHs) have attracted considerable attention as promising materials for electrochemical and optical sensors owing to their excellent catalytic properties, facile synthesis strategies, highly tunable morphology, and versatile hosting ability. LDH-based electrochemical sensors are affordable alternatives to traditional precious-metal-based sensors, as LDHs can be synthesized from abundant inorganic precursors. LDH-modified probes can directly catalyze or host catalytic compounds that facilitate analyte redox reactions, detected as changes in the probe's current, voltage, or resistance. The porous and lamellar structure of LDHs allows rapid analyte diffusion and abundant active sites for enhanced sensor sensitivity. LDHs can be composed of conductive materials such as reduced graphene oxide (rGO) or metal nanoparticles for improved catalytic activity and analyte selectivity. As optical sensors, LDHs provide a spacious, stable structure for synergistic guest-host interactions. LDHs can immobilize fluorophores, chemiluminescence reactants, and other spectroscopically active materials to reduce the aggregation and dissolution of the embedded sensor molecules, yielding enhanced optical responses and increased probe reusability. This review discusses standard LDH synthesis methods and overviews the different electrochemical and optical analysis techniques. Furthermore, the designs and modifications of exemplary LDHs and LDH composite materials are analyzed, focusing on the analytical performance of LDH-based sensors for key biomarkers and pollutants, including glucose, dopamine (DA), H2O2, metal ions, nitrogen-based toxins, and other organic compounds.
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Affiliation(s)
- Andrew Kim
- Department of Chemical Engineering, The Cooper Union for the Advancement of Science and Art, New York, NY 10003, USA;
| | - Imre Varga
- Institute of Chemistry, Eötvös Loránd University, 1117 Budapest, Hungary
| | | | - Rajkumar Patel
- Energy and Environmental Science and Engineering (EESE), Integrated Science and Engineering Division (ISED), Underwood International College, Yonsei University, 85 Songdogwahak-ro, Yeonsu-gu, Incheon 21983, Korea
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68
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Peralta MF, Mendieta SN, Scolari IR, Granero GE, Crivello ME. Synthesis and release behavior of layered double hydroxides-carbamazepine composites. Sci Rep 2021; 11:20585. [PMID: 34663824 PMCID: PMC8523521 DOI: 10.1038/s41598-021-00117-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2020] [Accepted: 10/05/2021] [Indexed: 11/18/2022] Open
Abstract
Carbamazepine (CBZ) was incorporated into layered double hydroxides (LDH) to be used as a controlled drug system in solid tumors. CBZ has a formal charge of zero, so its incorporation in the anionic clay implies a challenge. Aiming to overcome this problem, CBZ was loaded into LDH with sodium cholate (SC), a surfactant with negative charge and, for comparison, without SC by the reconstruction method. Surprisingly, it was found that both resultant nanocomposites had similar CBZ encapsulation efficiency, around 75%, and the LDH-CBZ system without SC showed a better performance in relation to the release kinetics of CBZ in simulated body fluid (pH 7.4) and acetate buffer simulating the cellular cytoplasm (pH 4.8) than the system with SC. The CBZ dimensions were measured with Chem3D and, according to the basal spacing obtained from X-ray patterns, it can be arranged in the LDH-CBZ system as a monolayer with the long axis parallel to the LDH layers. Fourier transform infrared spectroscopy and solid state NMR measurements confirmed the presence of the drug, and thermogravimetric analyses showed an enhanced thermal stability for CBZ. These results have interesting implications since they increase the spectrum of LDH application as a controlled drug system to a large number of nonionic drugs, without the addition of other components.
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Affiliation(s)
- Ma F Peralta
- Centro de Investigación y Tecnología Química - CONICET - Universidad Tecnológica Nacional, Regional Córdoba, Maestro López Esq. Cruz Roja Argentina, S/N, X5016ZAA, Córdoba, Argentina.,Unidad de Investigación y Desarrollo en Tecnología Farmacéutica - CONICET - Universidad Nacional de Córdoba, Córdoba, Argentina.,Departamento de Ciencias Farmacéuticas, Universidad Nacional de Córdoba, Córdoba, Argentina
| | - S N Mendieta
- Centro de Investigación y Tecnología Química - CONICET - Universidad Tecnológica Nacional, Regional Córdoba, Maestro López Esq. Cruz Roja Argentina, S/N, X5016ZAA, Córdoba, Argentina.
| | - I R Scolari
- Unidad de Investigación y Desarrollo en Tecnología Farmacéutica - CONICET - Universidad Nacional de Córdoba, Córdoba, Argentina.,Departamento de Ciencias Farmacéuticas, Universidad Nacional de Córdoba, Córdoba, Argentina
| | - G E Granero
- Unidad de Investigación y Desarrollo en Tecnología Farmacéutica - CONICET - Universidad Nacional de Córdoba, Córdoba, Argentina.,Departamento de Ciencias Farmacéuticas, Universidad Nacional de Córdoba, Córdoba, Argentina
| | - M E Crivello
- Centro de Investigación y Tecnología Química - CONICET - Universidad Tecnológica Nacional, Regional Córdoba, Maestro López Esq. Cruz Roja Argentina, S/N, X5016ZAA, Córdoba, Argentina.
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69
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Layered Double Hydroxides as a Drug Delivery Vehicle for S-Allyl-Mercapto-Cysteine (SAMC). Processes (Basel) 2021. [DOI: 10.3390/pr9101819] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
The intercalations of anionic molecules and drugs in layered double hydroxides (LDHs) have been intensively investigated in recent years. Due to their properties, such as versatility in chemical composition, good biocompatibility, high density and protection of loaded drugs, LDHs seem very promising nanosized systems for drug delivery. In this work, we report the intercalation of S-allyl-mercapto-cysteine (SAMC), which is a component of garlic that is well-known for its anti-tumor properties, inside ZnAl-LDH (hereafter LDH) nanostructured crystals. In order to investigate the efficacy of the intercalation and drug delivery of SAMC, the intercalated compounds were characterized using X-ray powder diffraction (XRD), Fourier-transform infrared spectroscopy (FT-IR) and scanning electron microscopy (SEM). The increase in the interlayer distance of LDH from 8.9 Å, typical of the nitrate phase, to 13.9 Å indicated the intercalation of SAMC, which was also confirmed using FT-IR spectra. Indeed, compared to that of the pristine LDH precursor, the spectrum of LDH-SAMC was richly structured in the fingerprint region below 1300 cm−1, whose peaks corresponded to those of the functional groups in the SAMC molecular anion. The LDH-SAMC empirical formula, obtained from UV-Vis spectrophotometry and thermogravimetric analysis, was [Zn0.67Al0.33(OH)2]SAMC0.15(NO3)0.18·0.6H2O. The morphology of the sample was investigated using SEM: LDH-SAMC exhibited a more irregular size and shape of the flake-like crystals in comparison with the pristine LDH, with a reduction in the average crystallite size from 3 µm to about 2 µm. In vitro drug release studies were performed in a phosphate buffer solution at pH 7.2 and 37 °C and were analyzed using UV-Vis spectrophotometry. The SAMC release from LDH-SAMC was initially characterized by a burst effect in the first four hours, during which, 32% of the SAMC is released. Subsequently, the release percentage increased at a slower rate until 42% after 48 h; then it stabilized at 43% and remained constant for the remaining period of the investigation. The LDH-SAMC complex that was developed in this study showed the improved efficacy of the action of SAMC in reducing the invasive capacity of a human hepatoma cell line.
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Li X, Xu S, Wang H, Dong A. Synthesis and characterization of hybrid nanocarrier layered double hydroxide grafted by polyethylene glycol and gemcitabine. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2021; 32:2293-2305. [PMID: 34429025 DOI: 10.1080/09205063.2021.1967701] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
For the past few years, organic-inorganic hybrid nanocarriers have been widely explored for effective drug delivery and preferable disease treatments. In this article, hydrothermal method was utilized to prepare fine dispersed layered double hydroxide (Mg-Al LDH) suspension. Polyethylene glycol (PEG) was grafted on the surface of LDH lamella in order to improve the dispersibility of LDH. Besides, the anti-cancer drug gemcitabine was grafted on the surface of LDH lamellas through chemical grafting. Hence a novel new type of organic-inorganic hybrid drug delivery system LDH-mPEG-Gemcitabine was obtained. In addition, the siRNA was intercalated into the LDH interlamination by ion exchange method to realize drug and gene co-delivery. The loading capacity of LDH and LDH-mPEG-Gemcitabine was evaluated by agarose gel electrophoresis. The characterization by laser particle size analyzer, TEM, FT-IR, XRD, in vitro cell viability and in vitro drug release demonstrated that LDH-mPEG-Gemcitabine possessed fine dispersibility, uniform morphology and particle size, fine biocompatibility, ideal drug loading and releasing capacity and held great potential to be used as a desired co-delivery system for drug and gene.
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Affiliation(s)
- Xue Li
- Department of Chemistry, School of Basic Medical Sciences, Shanxi Medical University, Taiyuan, Shanxi, China
| | - Shuxin Xu
- Department of Bio-Medical Diagnostics, Jinan Guo Ke Medical Technology Development Co., Ltd, Jinan, Shandong, China
| | - Haojiang Wang
- Department of Chemistry, School of Basic Medical Sciences, Shanxi Medical University, Taiyuan, Shanxi, China
| | - Anjie Dong
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin, China
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El-Shahawy AAG, Abdel-Moneim A, Ebeid ASM, Eldin ZE, Zanaty MI. A novel layered double hydroxide-hesperidin nanoparticles exert antidiabetic, antioxidant and anti-inflammatory effects in rats with diabetes. Mol Biol Rep 2021; 48:5217-5232. [PMID: 34244888 DOI: 10.1007/s11033-021-06527-2] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2021] [Accepted: 06/27/2021] [Indexed: 11/29/2022]
Abstract
BACKGROUND Incidence of diabetes has increased significantly worldwide over recent decades. Our objective was to prepare and characterize a novel nano-carrier of hesperidin to achieve a sustained release of hesperidin and to explore the potency of the novel formula as an antidiabetic agent compared to metformin in type 2 diabetic rats. METHODS Hesperidin was loaded on MgAl-layered double hydroxide (LDH). The formula was characterized using Fourier transform infrared spectroscopy (FTIR), X-ray powder diffraction (XRD), transmission electron microscopy, and dynamic light scattering. The release profile of hesperidin and MgAl-LDH-Hesperidin were studied in vitro. The parameters studied in vivo were blood glucose, glycated hemoglobin (HbA1c), insulin, lipid profile, and liver glycogen levels. We also investigated the levels of interleukin (IL)-17, tumor necrosis factor-Alfa (TNF-α), malondialdehyde (MDA), catalase, and the mRNA expression of peroxisome proliferator-activated receptor-gamma (PPARγ) and nuclear factor erythroid 2-related factor-2 (NrF2). RESULTS There were variations in the XRD patterns and FTIR confirming the physical adsorption of hesperidin on the surface of LDH. The results indicated that the diabetic rats treated with administration of antidiabetic formula, MgAl-LDH-Hesperidin, showed a beneficial effect on the levels of blood glucose, insulin, HbA1c%, and lipid profile, comparing to diabetic control rats. The antidiabetic agent also showed a significant decrease in the levels of TNF-α, IL-17, and MDA, and an increase in the level of catalase. Marked upregulation of the expression levels of mRNA for PPARγ and NrF2 were recorded. CONCLUSION The novel nano-hesperidin formula MgAl-LDH-Hesperidin revealed a sustained release of hesperidin and exhibited antidiabetic, antihyperlipidemic, antioxidant, and anti-inflammatory properties, and also is a promising agent for effective delivery of drugs to treat type 2 diabetes.
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Affiliation(s)
- Ahmed A G El-Shahawy
- Materials Science and Nanotechnology Department, Faculty of Postgraduate Studies for Advanced Sciences (PSAS), Beni-Suef University, Beni-Suef, 62511, Egypt
| | - Adel Abdel-Moneim
- Molecular Physiology Division, Faculty of Science, Beni-Suef University, Salah Salem St, Beni-Suef, 62511, Egypt.
| | - Abdelazim S M Ebeid
- Biotechnology and Life Sciences Department, Faculty of Postgraduate Studies for Advanced Sciences (PSAS), Beni-Suef University, Beni-Suef, Egypt
| | - Zienab E Eldin
- Faculty of Veterinary Medicine, Beni-Suef University, Beni-Suef, Egypt
| | - Mohamed I Zanaty
- Biotechnology and Life Sciences Department, Faculty of Postgraduate Studies for Advanced Sciences (PSAS), Beni-Suef University, Beni-Suef, Egypt
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Simeonidis K, Kaprara E, Rivera-Gil P, Xu R, Teran FJ, Kokkinos E, Mitropoulos A, Maniotis N, Balcells L. Hydrotalcite-Embedded Magnetite Nanoparticles for Hyperthermia-Triggered Chemotherapy. NANOMATERIALS 2021; 11:nano11071796. [PMID: 34361181 PMCID: PMC8308439 DOI: 10.3390/nano11071796] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/07/2021] [Revised: 07/04/2021] [Accepted: 07/06/2021] [Indexed: 01/25/2023]
Abstract
A magnetic nanocomposite, consisting of Fe3O4 nanoparticles embedded into a Mg/Al layered double hydroxide (LDH) matrix, was developed for cancer multimodal therapy, based on the combination of local magnetic hyperthermia and thermally induced drug delivery. The synthesis procedure involves the sequential hydrolysis of iron salts (Fe2+, Fe3+) and Mg2+/Al3+ nitrates in a carbonate-rich mild alkaline environment followed by the loading of 5-fluorouracil, an anionic anticancer drug, in the interlayer LDH space. Magnetite nanoparticles with a diameter around 30 nm, dispersed in water, constitute the hyperthermia-active phase able to generate a specific loss of power of around 500 W/g-Fe in an alternating current (AC) magnetic field of 24 kA/m and 300 kHz as determined by AC magnetometry and calorimetric measurements. Heat transfer was found to trigger a very rapid release of drug which reached 80% of the loaded mass within 10 min exposure to the applied field. The potential of the Fe3O4/LDH nanocomposites as cancer treatment agents with minimum side-effects, owing to the exclusive presence of inorganic phases, was validated by cell internalization and toxicity assays.
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Affiliation(s)
- Konstantinos Simeonidis
- Department of Chemical Engineering, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece;
- Ecoresources P.C., Giannitson-Santaroza Str. 15-17, 54627 Thessaloniki, Greece;
- Correspondence:
| | - Efthimia Kaprara
- Department of Chemical Engineering, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece;
| | - Pilar Rivera-Gil
- Integrative Biomedical Materials and Nanomedicine Lab, Universitat Pompeu Fabra, 08003 Barcelona, Spain; (P.R.-G.); (R.X.)
| | - Ruixue Xu
- Integrative Biomedical Materials and Nanomedicine Lab, Universitat Pompeu Fabra, 08003 Barcelona, Spain; (P.R.-G.); (R.X.)
| | - Francisco J. Teran
- IMDEA-Nanociencia, Ciudad Universitaria de Cantoblanco, 28049 Madrid, Spain;
- Nanobiotecnología (iMdea-Nanociencia), Unidad Asociada al Centro Nacional de Biotecnología (CSIC), 28049 Madrid, Spain
| | - Evgenios Kokkinos
- Ecoresources P.C., Giannitson-Santaroza Str. 15-17, 54627 Thessaloniki, Greece;
| | - Athanassios Mitropoulos
- Hephaestus Advanced Laboratory, Department of Chemistry, International Hellenic University, 65404 Kavala, Greece;
| | - Nikolaos Maniotis
- Department of Physics, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece;
| | - Lluis Balcells
- Institut de Ciencia de Materials de Barcelona, CSIC, 08193 Bellaterra, Spain;
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Bezerra BGP, Bieseki L, de Mello MIS, da Silva DR, Rodella CB, Pergher S. Memory Effect on a LDH/zeolite A Composite: An XRD In Situ Study. MATERIALS 2021; 14:ma14092102. [PMID: 33919393 PMCID: PMC8122364 DOI: 10.3390/ma14092102] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Revised: 04/08/2021] [Accepted: 04/12/2021] [Indexed: 12/13/2022]
Abstract
In this memory effect study, hydrotalcite-type compounds in the lamellar double hydroxide-like (LDH)/zeolite A composite material were analyzed using X-Ray Diffration XRD) in situ experiments. Three samples were analyzed: Al,Mg-LDH, Al,Mg-LDH/ZA composite, and a physical mixture (50/50 wt%) of zeolite A and Al,Mg-LDH. The Al,Mg-LDH sample was treated at 500 °C in an O2 atmosphere and subsequently rehydrated. The Al,Mg-LDH/ZA composites had three treatments: one was performed at 300 °C in a He atmosphere, and two treatments were performed with an O2 atmosphere at 300 and 500 °C. In the physical mixture, two treatments were carried out under O2 flow at 500 °C and under He flow at 300 °C. Both went through the rehydration process. All samples were also analyzed by energy dispersive spectroscopy (EDS) and scanning electron microscopy (SEM). The results show that the LDH phase in the Al,Mg-LDH/ZA compounds has memory effects, and thus, the compound can be calcined and rehydrated. For the LDH in the composite, the best heat treatment system is a temperature of 300 °C in an inert atmosphere.
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Affiliation(s)
- Breno G. P. Bezerra
- Molecular Sieves Laboratory LABPEMOL, Chemistry Institute, Federal University of Rio Grande do Norte UFRN, Natal 59078-970, RN, Brazil; (B.G.P.B.); (L.B.); (M.I.S.d.M.); (D.R.d.S.)
| | - Lindiane Bieseki
- Molecular Sieves Laboratory LABPEMOL, Chemistry Institute, Federal University of Rio Grande do Norte UFRN, Natal 59078-970, RN, Brazil; (B.G.P.B.); (L.B.); (M.I.S.d.M.); (D.R.d.S.)
| | - Mariele I. S. de Mello
- Molecular Sieves Laboratory LABPEMOL, Chemistry Institute, Federal University of Rio Grande do Norte UFRN, Natal 59078-970, RN, Brazil; (B.G.P.B.); (L.B.); (M.I.S.d.M.); (D.R.d.S.)
| | - Djalma R. da Silva
- Molecular Sieves Laboratory LABPEMOL, Chemistry Institute, Federal University of Rio Grande do Norte UFRN, Natal 59078-970, RN, Brazil; (B.G.P.B.); (L.B.); (M.I.S.d.M.); (D.R.d.S.)
| | - Cristiane B. Rodella
- Brazilian Synchrotron Laboratory (LNLS), Brazilian Research Center of Materials and Energy (CNPEM), Campinas 13083-100, SP, Brazil;
| | - Sibele Pergher
- Molecular Sieves Laboratory LABPEMOL, Chemistry Institute, Federal University of Rio Grande do Norte UFRN, Natal 59078-970, RN, Brazil; (B.G.P.B.); (L.B.); (M.I.S.d.M.); (D.R.d.S.)
- Correspondence: ; Tel.: +55-84-991936083
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