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Xie J, Lee K, Park H, Jung H, Oh JM. Enhanced Emulsifying Ability of Deoxycholate through Dynamic Interaction with Layered Double Hydroxide. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:567. [PMID: 36770528 PMCID: PMC9920619 DOI: 10.3390/nano13030567] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/28/2022] [Revised: 01/27/2023] [Accepted: 01/28/2023] [Indexed: 06/18/2023]
Abstract
The emulsifying ability of the naturally occurring surfactant deoxycholic acid (DCA) was improved by dynamic interaction with nanometric layered particles, layered double hydroxide (LDH). As DCA molecules are rigid due to the facial configuration of hydrophobic-hydrophilic groups, they tend to form molecular aggregation in an acidic condition or imbalanced water-lipid ratios. In this study, the homogeneous hybrids of DCA and LDH were obtained by the in situ growth of LDH at a DCA molecule. The DCA-LDH hybrid successfully prevented the molecular aggregation of DCA at an acidic pH and imbalanced water-to-oil ratio. The dynamic light scattering showed that the hydrodynamic radius of micelle in the emulsion made with DCA-LDH maintained its small size (<500 nm), while upon pH change and dilution with water, that made with DCA only uncontrollably increased up to ~3000 nm. The polydispersity index value of the DCA-LDH emulsion remained constant (<0.3) after the pH change and dilution with water, indicating the high stability of the formulation. Furthermore, time-dependent turbidity monitoring revealed that the DCA-only formulation suffered from serious coalescence and creaming compared with the DCA-LDH formulation. It is suggested that the dynamic interaction between LDH layers and DCA prevented molecular aggregation under unfavorable conditions for the oil-in-water emulsion.
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Affiliation(s)
- Jing Xie
- Department of Energy and Materials Engineering, Dongguk University, Seoul 04620, Republic of Korea
| | - Kyounghyoun Lee
- Department of Chemistry, Dongguk University, Seoul 04620, Republic of Korea
| | - Hyeonjin Park
- Department of Energy and Materials Engineering, Dongguk University, Seoul 04620, Republic of Korea
| | - Hyun Jung
- Department of Chemistry, Dongguk University, Seoul 04620, Republic of Korea
| | - Jae-Min Oh
- Department of Energy and Materials Engineering, Dongguk University, Seoul 04620, Republic of Korea
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Tedim J, Galvão TLP, Yasakau KA, Bastos A, Gomes JRB, Ferreira MGS. Layered double hydroxides for corrosion-related applications—Main developments from 20 years of research at CICECO. Front Chem 2022; 10:1048313. [DOI: 10.3389/fchem.2022.1048313] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Accepted: 10/25/2022] [Indexed: 11/19/2022] Open
Abstract
This work describes the main advances carried out in the field of corrosion protection using layered double hydroxides (LDH), both as additive/pigment-based systems in organic coatings and as conversion films/pre-treatments. In the context of the research topic “Celebrating 20 years of CICECO”, the main works reported herein are based on SECOP’s group (CICECO) main advances over the years. More specifically, this review describes structure and properties of LDH, delving into the corrosion field with description of pioneering works, use of LDH as additives to organic coatings, conversion layers, application in reinforced concrete and corrosion detection, and environmental impact of these materials. Moreover, the use of computational tools for the design of LDH materials and understanding of ion-exchange reactions is also presented. The review ends with a critical analysis of the field and future perspectives on the use of LDH for corrosion protection. From the work carried out LDH seem very tenable, versatile, and advantageous for corrosion protection applications, although several obstacles will have to be overcome before their use become commonplace.
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Awassa J, Cornu D, Ruby C, El-Kirat-Chatel S. Direct contact, dissolution and generation of reactive oxygen species: How to optimize the antibacterial effects of layered double hydroxides. Colloids Surf B Biointerfaces 2022; 217:112623. [PMID: 35714507 DOI: 10.1016/j.colsurfb.2022.112623] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2022] [Revised: 06/07/2022] [Accepted: 06/09/2022] [Indexed: 10/18/2022]
Abstract
Infections by pathogenic bacteria have been threatening several fields as food industries, agriculture, textile industries and healthcare products. Layered double hydroxides materials (LDHs), also called anionic clays, could be utilized as efficient antibacterial materials due to their several interesting properties such as ease of synthesis, tunable chemical composition, biocompatibility and anion exchange capacity. Pristine LDHs as well as LDH-composites including antibacterial molecules and nanoparticles loaded-LDHs were proven to serve as efficient antibacterial agents against various Gram-positive and Gram-negative bacterial strains. The achieved antibacterial effect was explained by the following mechanisms: (1) Direct contact between the materials and bacterial cells driven by electrostatic interactions between positively charged layers and negatively charged cell membranes, (2) Dissolution and gradual release over time of metallic ions or antibacterial molecules, (3) Generation of reactive oxygen species.
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Affiliation(s)
- Jazia Awassa
- Université de Lorraine, CNRS, LCPME, Nancy F-54000, France
| | - Damien Cornu
- Université de Lorraine, CNRS, LCPME, Nancy F-54000, France.
| | - Christian Ruby
- Université de Lorraine, CNRS, LCPME, Nancy F-54000, France
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Zobir SAM, Ali A, Adzmi F, Sulaiman MR, Ahmad K. A Review on Nanopesticides for Plant Protection Synthesized Using the Supramolecular Chemistry of Layered Hydroxide Hosts. BIOLOGY 2021; 10:1077. [PMID: 34827070 PMCID: PMC8614857 DOI: 10.3390/biology10111077] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/16/2021] [Revised: 10/09/2021] [Accepted: 10/11/2021] [Indexed: 02/06/2023]
Abstract
The rapid growth in the human population has triggered increased demand for food supply, and in turn has prompted a higher amount of agrochemical usage to meet the gaps between food production and consumption. The problem with conventional agro-nanochemicals is the reduced effectiveness of the active ingredient in reaching the target, along with leaching, evaporation, etc., which ultimately affect the environment and life, including humans. Fortunately, nanotechnology platforms offer a new life for conventional pesticides, which improves bioavailability through different kinetics, mechanisms and pathways on their target organisms, thus enabling them to suitably bypass biological and other unwanted resistances and therefore increase their efficacy. This review is intended to serve the scientific community for research, development and innovation (RDI) purposes, by providing an overview on the current status of the host-guest supramolecular chemistry of nanopesticides, focusing on only the two-dimensional (2D), brucite-like inorganic layered hydroxides, layered hydroxide salts and layered double hydroxides as the functional nanocarriers or as the hosts in smart nanodelivery systems of pesticides for plant protection. Zinc layered hydroxides and zinc/aluminum-layered double hydroxides were found to be the most popular choices of hosts, presumably due to their relative ease to prepare and cheap cost. Other hosts including Mg/Al-, Co/Cr-, Mg/Fe-, Mg/Al/Fe-, Zn/Cr- and Zn/Cu-LDHs were also used. This review also covers various pesticides which were used as the guest active agents using supramolecular host-guest chemistry to combat various pests for plant protection. This looks towards a new generation of agrochemicals, "agro-nanochemicals", which are more effective, and friendly to life, humans and the environment.
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Affiliation(s)
- Syazwan Afif Mohd Zobir
- Department of Plant Protection, Faculty of Agriculture, Universiti Putra Malaysia, Serdang 43400 UPM, Selangor, Malaysia
- Institute of Plantation Studies, Universiti Putra Malaysia, Serdang 43400 UPM, Selangor, Malaysia;
| | - Asgar Ali
- Centre of Excellence for Postharvest Biotechnology (CEPB), School of Biosciences, University of Nottingham Malaysia, Jalan Broga, Semenyih 43500, Selangor, Malaysia;
| | - Fariz Adzmi
- Institute of Plantation Studies, Universiti Putra Malaysia, Serdang 43400 UPM, Selangor, Malaysia;
| | - Mohd Roslan Sulaiman
- Department of Science and Biomedicine, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Serdang 43400 UPM, Selangor, Malaysia;
| | - Khairulmazmi Ahmad
- Department of Plant Protection, Faculty of Agriculture, Universiti Putra Malaysia, Serdang 43400 UPM, Selangor, Malaysia
- Institute of Plantation Studies, Universiti Putra Malaysia, Serdang 43400 UPM, Selangor, Malaysia;
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The Efficiency of Biocidal Silica Nanosystems for the Conservation of Stone Monuments: Comparative In Vitro Tests against Epilithic Green Algae. APPLIED SCIENCES-BASEL 2021. [DOI: 10.3390/app11156804] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
In the last decade, worldwide research has focused on innovative natural biocides and the development of organic and inorganic nanomaterials for long-lasting reliability. In this work, the biocide effects of two different biocides encapsulated in two different silica nanosystems for a multifunctional coating have been performed through in vitro tests, by using Chlorococcum sp. as a common stone biodeteriogen. Zosteric sodium salt (ZS), a green biocide, was compared with the commercial biocide, 2-mercaptobenzothiazole (MBT), widely used in the treatment of cultural heritage. The analyzed systems are the following: silica nanocapsules (NC) and silica nanoparticles (MNP) not loaded with biocides, two nanosystems loaded with ZS and MBT, and free biocides. The qualitative and quantitative evaluations of biocide efficiency were performed periodically, analyzing pigment autofluorescence to discriminate between active and inactive/dead cells. The analyses showed multiple differences. All the nanocontainers presented an initial reduction in chlorophyll’s autofluorescence. For the free biocide, the results highlighted higher efficiency for MBT than ZS. Finally, the nanosystems loaded with the different biocides highlighted a higher activity for nanocontainers loaded with the commercial biocide than the green product, and better efficiency for MNP in comparison with NC.
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Zhilitskaya LV, Shainyan BA, Yarosh NO. Modern Approaches to the Synthesis and Transformations of Practically Valuable Benzothiazole Derivatives. Molecules 2021; 26:2190. [PMID: 33920281 PMCID: PMC8070523 DOI: 10.3390/molecules26082190] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2021] [Revised: 04/04/2021] [Accepted: 04/09/2021] [Indexed: 01/07/2023] Open
Abstract
The review is devoted to modern trends in the chemistry of 2-amino and 2-mercapto substituted benzothiazoles covering the literature since 2015. The reviewed heterocycles belong to biologically active and industrially demanded compounds. Newly developed synthesis methods can be divided into conventional multistep processes and one-pot, atom economy procedures, realized using green chemistry principles and simple reagents. The easy functionalization of the 2-NH2 and 2-SH groups and the benzene ring of the benzothiazole moiety allows considering them as highly reactive building blocks for organic and organoelement synthesis, including the synthesis of pharmacologically active heterocycles. The review provides a summary of findings, which may be useful for developing new drugs and materials and new synthetic approaches and patterns of reactivity.
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Affiliation(s)
| | - Bagrat A. Shainyan
- E. Favorsky Irkutsk Institute of Chemistry, Siberian Branch of the Russian Academy of Sciences, 1 Favorsky Street, 664033 Irkutsk, Russia; (L.V.Z.); (N.O.Y.)
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CS2 mediated synthesis of corrosion-inhibiting mercaptobenzothiazole molecule for industrial zinc: Experimental studies and molecular dynamic simulations. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2020.115129] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Trofimova O, Grebneva E, Bolgova Y, Belogolova E, Emel’yanov A, Albanov A, Borodina T, Ivanova A, Korzhova S, Pozdnyakov A. The synthesis, characterization, and theoretical analysis of novel Si-substituted silylethyl derivatives of 2-mercaptobenzoxazole and 2-mercaptobenzothiazole. NEW J CHEM 2021. [DOI: 10.1039/d1nj00793a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Trifluorosilylethyl derivatives of 2-mercaptobenzoxazole and 2-mercaptobenzothiazole C6H4NYCS(CH2)2SiF3 (Y = O, S) have been synthesized in order to study the intramolecular N → Si interaction in compounds with the SiCCSCN fragment.
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Affiliation(s)
- Olga Trofimova
- A. E. Favorsky Irkutsk Institute of Chemistry
- Siberian Branch of the Russian Academy Sciences
- 664033 Irkutsk
- Russian Federation
| | - Ekaterina Grebneva
- A. E. Favorsky Irkutsk Institute of Chemistry
- Siberian Branch of the Russian Academy Sciences
- 664033 Irkutsk
- Russian Federation
| | - Yuliya Bolgova
- A. E. Favorsky Irkutsk Institute of Chemistry
- Siberian Branch of the Russian Academy Sciences
- 664033 Irkutsk
- Russian Federation
| | - Elena Belogolova
- A. E. Favorsky Irkutsk Institute of Chemistry
- Siberian Branch of the Russian Academy Sciences
- 664033 Irkutsk
- Russian Federation
| | - Artem Emel’yanov
- A. E. Favorsky Irkutsk Institute of Chemistry
- Siberian Branch of the Russian Academy Sciences
- 664033 Irkutsk
- Russian Federation
| | - Alexander Albanov
- A. E. Favorsky Irkutsk Institute of Chemistry
- Siberian Branch of the Russian Academy Sciences
- 664033 Irkutsk
- Russian Federation
| | - Tat’yana Borodina
- A. E. Favorsky Irkutsk Institute of Chemistry
- Siberian Branch of the Russian Academy Sciences
- 664033 Irkutsk
- Russian Federation
| | - Anastasiya Ivanova
- A. E. Favorsky Irkutsk Institute of Chemistry
- Siberian Branch of the Russian Academy Sciences
- 664033 Irkutsk
- Russian Federation
| | - Svetlana Korzhova
- A. E. Favorsky Irkutsk Institute of Chemistry
- Siberian Branch of the Russian Academy Sciences
- 664033 Irkutsk
- Russian Federation
| | - Alexander Pozdnyakov
- A. E. Favorsky Irkutsk Institute of Chemistry
- Siberian Branch of the Russian Academy Sciences
- 664033 Irkutsk
- Russian Federation
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Wilhelm M, Quevedo MC, Sushkova A, Galvão TLP, Bastos A, Ferreira M, Tedim J. Hexacyanoferrate‐Intercalated Layered Double Hydroxides as Nanoadditives for the Detection of Early‐Stage Corrosion of Steel: The Revival of Prussian blue. Eur J Inorg Chem 2020. [DOI: 10.1002/ejic.202000144] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Manon Wilhelm
- CICECO‐Aveiro Institute of Materials DEMaC‐University of Aveiro Campus de Santiago 3810‐193 Aveiro Portugal
| | - Marcela C. Quevedo
- CICECO‐Aveiro Institute of Materials DEMaC‐University of Aveiro Campus de Santiago 3810‐193 Aveiro Portugal
| | - Alesia Sushkova
- CICECO‐Aveiro Institute of Materials DEMaC‐University of Aveiro Campus de Santiago 3810‐193 Aveiro Portugal
| | - Tiago L. P. Galvão
- CICECO‐Aveiro Institute of Materials DEMaC‐University of Aveiro Campus de Santiago 3810‐193 Aveiro Portugal
| | - Alexandre Bastos
- CICECO‐Aveiro Institute of Materials DEMaC‐University of Aveiro Campus de Santiago 3810‐193 Aveiro Portugal
| | - Mário Ferreira
- CICECO‐Aveiro Institute of Materials DEMaC‐University of Aveiro Campus de Santiago 3810‐193 Aveiro Portugal
| | - João Tedim
- CICECO‐Aveiro Institute of Materials DEMaC‐University of Aveiro Campus de Santiago 3810‐193 Aveiro Portugal
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Synthesis and structure of novel Si-substituted silylpropyl derivatives of 2-mercaptobenzoxazole and 2-mercaptobenzothiazole. Chem Heterocycl Compd (N Y) 2019. [DOI: 10.1007/s10593-019-02532-3] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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