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Wang X, Jiang C, Li H, Tian W, Ahmed S, Feng Y. Colloid Mill-Assisted Ultrasonic-Fractional Centrifugal Purification of Low-Grade Attapulgite and Its Modification for Adsorption of Congo Red. MATERIALS (BASEL, SWITZERLAND) 2024; 17:2034. [PMID: 38730840 PMCID: PMC11084273 DOI: 10.3390/ma17092034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/17/2024] [Revised: 04/18/2024] [Accepted: 04/23/2024] [Indexed: 05/13/2024]
Abstract
Attapulgite (APT) is widely used in wastewater treatment due to its exceptional adsorption and colloidal properties, as well as its cost-effectiveness and eco-friendliness. However, low-grade APT generally limits its performance. Here, a colloid mill-assisted ultrasonic-fractional centrifugal purification method was developed to refine low-grade APT. This process successfully separated and removed impurity minerals such as quartz and dolomite from the raw ore, resulting in a refined APT purity increase from 16.9% to 60% with a specific surface area of 135.5 m2∙g-1. Further modifying of the refined APT was carried out through the hydrothermal method using varying dosages of cetyltrimethylammonium chloride (CTAC), resulting in the production of four different APT adsorbents denoted as QAPT-n (n = CTAC mole number) ranging from 0.5 to 5 mmol. Using Congo red (CR) as the target pollutant, the QAPT-5 sample exhibited the best adsorption capacity with the maximum quantity of 1652.2 mg∙g-1 in a neutral solution at 30 °C due to the highest surface charge (zeta potential = 8.25 mV). Moreover, the QAPT-5 pellets (~2.0 g adsorbent) shaped by the alginate-assisted molding method removed more than 96% of 200 mL aqueous solution containing 200 mg∙L-1 CR and maintained this efficiency in 10 adsorption-elution cycles, which exhibited the promising practical application.
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Affiliation(s)
- Xingpeng Wang
- State Key Laboratory of Chemical Resource Engineering, College of Chemistry, Beijing University of Chemical Technology, Beijing 100029, China; (X.W.); (C.J.)
| | - Chao Jiang
- State Key Laboratory of Chemical Resource Engineering, College of Chemistry, Beijing University of Chemical Technology, Beijing 100029, China; (X.W.); (C.J.)
| | - Huiyu Li
- State Key Laboratory of Chemical Resource Engineering, College of Chemistry, Beijing University of Chemical Technology, Beijing 100029, China; (X.W.); (C.J.)
| | - Weiliang Tian
- College of Chemistry and Chemical Engineering, Tarim University, Alar 843300, China;
| | - Saeed Ahmed
- Department of Chemistry, University of Chakwal, Chakwal 48800, Pakistan;
| | - Yongjun Feng
- State Key Laboratory of Chemical Resource Engineering, College of Chemistry, Beijing University of Chemical Technology, Beijing 100029, China; (X.W.); (C.J.)
- College of Chemistry and Chemical Engineering, Tarim University, Alar 843300, China;
- Gansu West Attapulgite Application Research Institute, Baiyin 730900, China
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Nomicisio C, Ruggeri M, Bianchi E, Vigani B, Valentino C, Aguzzi C, Viseras C, Rossi S, Sandri G. Natural and Synthetic Clay Minerals in the Pharmaceutical and Biomedical Fields. Pharmaceutics 2023; 15:pharmaceutics15051368. [PMID: 37242610 DOI: 10.3390/pharmaceutics15051368] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2023] [Revised: 03/31/2023] [Accepted: 04/26/2023] [Indexed: 05/28/2023] Open
Abstract
Clay minerals are historically among the most used materials with a wide variety of applications. In pharmaceutical and biomedical fields, their healing properties have always been known and used in pelotherapy and therefore attractive for their potential. In recent decades, the research has therefore focused on the systematic investigation of these properties. This review aims to describe the most relevant and recent uses of clays in the pharmaceutical and biomedical field, especially for drug delivery and tissue engineering purposes. Clay minerals, which are biocompatible and non-toxic materials, can act as carriers for active ingredients while controlling their release and increasing their bioavailability. Moreover, the combination of clays and polymers is useful as it can improve the mechanical and thermal properties of polymers, as well as induce cell adhesion and proliferation. Different types of clays, both of natural (such as montmorillonite and halloysite) and synthetic origin (layered double hydroxides and zeolites), were considered in order to compare them and to assess their advantages and different uses.
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Affiliation(s)
- Cristian Nomicisio
- Department of Drug Sciences, University of Pavia, Viale Taramelli 12, 27100 Pavia, Italy
| | - Marco Ruggeri
- Department of Drug Sciences, University of Pavia, Viale Taramelli 12, 27100 Pavia, Italy
| | - Eleonora Bianchi
- Department of Drug Sciences, University of Pavia, Viale Taramelli 12, 27100 Pavia, Italy
| | - Barbara Vigani
- Department of Drug Sciences, University of Pavia, Viale Taramelli 12, 27100 Pavia, Italy
| | - Caterina Valentino
- Department of Drug Sciences, University of Pavia, Viale Taramelli 12, 27100 Pavia, Italy
| | - Carola Aguzzi
- Department of Pharmacy and Pharmaceutical Technology, University of Granada, Cartuja Campus, 18071 Granada, Spain
| | - Cesar Viseras
- Department of Pharmacy and Pharmaceutical Technology, University of Granada, Cartuja Campus, 18071 Granada, Spain
| | - Silvia Rossi
- Department of Drug Sciences, University of Pavia, Viale Taramelli 12, 27100 Pavia, Italy
| | - Giuseppina Sandri
- Department of Drug Sciences, University of Pavia, Viale Taramelli 12, 27100 Pavia, Italy
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Zhao Y, Han X, Zhang N, Meng J, Zhang H, Liang J. Removal of Aflatoxin B 1 and Zearalenone in Mixed Aqueous Solution by Palygorskite-Montmorillonite Materials In Situ Prepared from Palygorskite Mineral. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:2797-2807. [PMID: 36763007 DOI: 10.1021/acs.langmuir.2c03289] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
In view of the animal feeds inevitably contaminated by multiple mycotoxins, eco-friendly and efficient palygorskite-montmorillonite (Pal-Mt) materials were prepared to remove polar aflatoxin B1 (AFB1) and weak polar zearalenone (ZEN) from mixed mycotoxins aqueous solution. The adsorption properties and bonding mechanisms between Pal-Mt materials and mycotoxins (AFB1 and ZEN) were investigated systematically. The as-prepared Pal-Mt showed excellent adsorption capacity for AFB1 and ZEN in single- and binary-mycotoxin systems, indicating the effectiveness of Pal-Mt acting as multiple mycotoxin adsorbents. The kinetics of adsorption for ZEN was fast due to the adsorption on the external surface (film and intraparticle diffusion), while AFB1 molecules permeated into mesopores after the external adsorption for the more planar structure. Adsorption isotherms demonstrated that heterogeneous surface adsorption appeared between Pal-Mt and AFB1, and monolayer adsorption occurred on Pal-Mt and ZEN for different polarities of mycotoxins. Thermodynamic parameters illustrated that the adsorption process of both AFB1 and ZEN onto Pal-Mt was spontaneous and endothermic. The adsorption mechanism studies suggested that hydrogen bonding, electrostatic attraction, calcium bridging linkage, and ion-dipole played fundamental roles in the interaction between Pal-Mt and these two mycotoxins.
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Affiliation(s)
- Yan Zhao
- Key Laboratory of Special Functional Materials for Ecological Environment and Information (Hebei University of Technology), Ministry of Education, Tianjin 300130, People's Republic of China
- Institute of Power Source and Ecomaterials Science, School of Materials Science and Engineering, Hebei University of Technology, Tianjin 300130, People's Republic of China
| | - Xiaoyu Han
- Key Laboratory of Special Functional Materials for Ecological Environment and Information (Hebei University of Technology), Ministry of Education, Tianjin 300130, People's Republic of China
- Institute of Power Source and Ecomaterials Science, School of Materials Science and Engineering, Hebei University of Technology, Tianjin 300130, People's Republic of China
| | - Na Zhang
- Key Laboratory of Special Functional Materials for Ecological Environment and Information (Hebei University of Technology), Ministry of Education, Tianjin 300130, People's Republic of China
- Institute of Power Source and Ecomaterials Science, School of Materials Science and Engineering, Hebei University of Technology, Tianjin 300130, People's Republic of China
| | - Junping Meng
- Key Laboratory of Special Functional Materials for Ecological Environment and Information (Hebei University of Technology), Ministry of Education, Tianjin 300130, People's Republic of China
- Institute of Power Source and Ecomaterials Science, School of Materials Science and Engineering, Hebei University of Technology, Tianjin 300130, People's Republic of China
| | - Hong Zhang
- Key Laboratory of Special Functional Materials for Ecological Environment and Information (Hebei University of Technology), Ministry of Education, Tianjin 300130, People's Republic of China
- Institute of Power Source and Ecomaterials Science, School of Materials Science and Engineering, Hebei University of Technology, Tianjin 300130, People's Republic of China
| | - Jinsheng Liang
- Key Laboratory of Special Functional Materials for Ecological Environment and Information (Hebei University of Technology), Ministry of Education, Tianjin 300130, People's Republic of China
- Institute of Power Source and Ecomaterials Science, School of Materials Science and Engineering, Hebei University of Technology, Tianjin 300130, People's Republic of China
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Montmorillonite-Rifampicin Nanohybrid for pH-Responsive Release of the Tuberculostatic. Pharmaceutics 2023; 15:pharmaceutics15020512. [PMID: 36839834 PMCID: PMC9966939 DOI: 10.3390/pharmaceutics15020512] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2022] [Revised: 01/27/2023] [Accepted: 01/31/2023] [Indexed: 02/05/2023] Open
Abstract
The present work describes the development of a hybrid and pH-responsive system for rifampicin using the clay mineral 'montmorillonite' as a nanocarrier. The influence of operational variables on the drug incorporation process was evaluated using 24 factorial designs. Under optimized conditions, the experiment allowed an incorporated drug dose equivalent to 98.60 ± 1.21 mg/g. Hybrid systems were characterized by different characterization techniques (FTIR, XRD, TGA, DSC, and SEM) to elucidate the mechanism of interaction between the compounds used. Through in vitro release studies, it was possible to verify the efficacy of the pH-dependent system obtained, with approximately 70% of the drug released after sixteen hours in simulated intestinal fluid. The adjustment of the experimental release data to the theoretical model of Higuchi and Korsmeyer-Peppas indicated that the release of rifampicin occurs in a prolonged form from montmorillonite. Elucidation of the interactions between the drug and this raw clay reinforces its viability as a novel carrier to develop an anti-TB/clay hybrid system with good physical and chemical stability.
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Fu Y, Zhu Y, Liang X, Kong Y, Wang X, Zhang A, Zhao Z, Gou J, Wang Y, Yin T, Zhang Y, He H, Tang X. The preparation and characterisation of tasteless core-shell clarithromycin microcapsules. J Microencapsul 2022; 39:654-667. [PMID: 36476313 DOI: 10.1080/02652048.2022.2146221] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
This study aims to fabricate core-shell clarithromycin (CAM) microcapsules to cover up the bitter taste of CAM by spray drying with aqueous polymer dispersion. Water dispersion of Eudragit EPO and Surelease® were innovatively used to encapsulate CAM into microcapsules via a one-step spray-drying method. The inlet air temperature, airflow rate, CAM-polymer ratio, and particle size of CAM were optimised based on drug content and T6% (the time taken for the drug to release equal to 6% w/w). The powder properties were assessed by measuring particle size and microstructure using SEM, FT-IR, and PXRD. Furthermore, selected batch was assessed for their drug content, encapsulation efficiency, in vitro release, bitterness, and stability studies. EPO-Surelease® (1: 4) microcapsules had an average diameter (D50) of 37.69 ± 3.61 μm with a span of 2.395. The drug contents and encapsulation efficiency of EPO-Surelease®(1:4) were 10.89% and 63.7%, respectively. EPO-Surelease® (1:4) microcapsules prepared by spray drying with aqueous polymer dispersion can effectively mask the bitter taste of CAM.
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Affiliation(s)
- Yu Fu
- Department of Pharmaceutics, College of Pharmacy, Shenyang Pharmaceutical University, Shenyang, China
| | - Yunjing Zhu
- Department of Pharmaceutics, College of Pharmacy, Shenyang Pharmaceutical University, Shenyang, China
| | - Xue Liang
- Department of Pharmaceutics, College of Pharmacy, Shenyang Pharmaceutical University, Shenyang, China
| | - Yihan Kong
- Department of Pharmaceutics, College of Pharmacy, Shenyang Pharmaceutical University, Shenyang, China
| | - Xiaolin Wang
- Department of Pharmaceutics, College of Pharmacy, Shenyang Pharmaceutical University, Shenyang, China
| | - Anan Zhang
- Department of Pharmaceutics, College of Pharmacy, Shenyang Pharmaceutical University, Shenyang, China
| | - Zhiqing Zhao
- Department of Pharmaceutics, College of Pharmacy, Shenyang Pharmaceutical University, Shenyang, China
| | - Jingxin Gou
- Department of Pharmaceutics, College of Pharmacy, Shenyang Pharmaceutical University, Shenyang, China
| | - Yanjiao Wang
- Department of Pharmaceutics, College of Pharmacy, Shenyang Pharmaceutical University, Shenyang, China
| | - Tian Yin
- School of Functional food and Wine, Shenyang Pharmaceutical University, Shenyang, China
| | - Yu Zhang
- Department of Pharmaceutics, College of Pharmacy, Shenyang Pharmaceutical University, Shenyang, China
| | - Haibing He
- Department of Pharmaceutics, College of Pharmacy, Shenyang Pharmaceutical University, Shenyang, China
| | - Xing Tang
- Department of Pharmaceutics, College of Pharmacy, Shenyang Pharmaceutical University, Shenyang, China
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Cao L, Xie W, Cui H, Xiong Z, Tang Y, Zhang X, Feng Y. Fibrous Clays in Dermopharmaceutical and Cosmetic Applications: Traditional and Emerging Perspectives. Int J Pharm 2022; 625:122097. [PMID: 35952800 DOI: 10.1016/j.ijpharm.2022.122097] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2022] [Revised: 07/19/2022] [Accepted: 08/05/2022] [Indexed: 12/15/2022]
Abstract
Functionalization of natural clay minerals for high value-added pharmaceutical and cosmetic applications receives significant research attention worldwide attributable to a rising demand and ongoing search for green, efficient, economically sustainable and ecofriendly geomaterials. Fibrous clays, i.e. palygorskite and sepiolite, are naturally-occurring hydrated magnesium aluminum silicate clay minerals with 2:1 layer-chain microstructure and one-dimensional nanofibrous morphology. Due to their unique structural, textural and compatibility features, over the past decade, fibrous clays and their organic modified derivatives are increasingly used in the dermopharmaceutical and cosmetic fields as excipients, active agents or nanocarriers to develop novel skin delivery systems or to modify drug release profile for enhanced health effects. This comprehensive review presents the up-to-date information on fibrous clays used in topically-applied products for therapeutic and cosmetic purposes with the focus on their performance-related structural characteristics and the underlying mechanisms. The recent advancement of fibrous clay-based skin delivery systems was summarized in wide range of applications including pelotherapy, wound healing, antimicrobial action, coloration and UV protection. An overview of the commonly used topically-applied dosage forms (powders, hydrogels, films, peloids and Pickering emulsion) as well as the toxicological aspects was also included, which might provide guidance to the design and development of fibrous clay-based skin delivery systems.
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Affiliation(s)
- Lihua Cao
- Beijing Key Laboratory of Plant Resources Research and Development, College of Chemistry and Materials Engineering, Beijing Technology and Business University, Beijing 100048, China
| | - Wenjing Xie
- Beijing Key Laboratory of Plant Resources Research and Development, College of Chemistry and Materials Engineering, Beijing Technology and Business University, Beijing 100048, China
| | - Hongyan Cui
- Beijing Key Laboratory of Plant Resources Research and Development, College of Chemistry and Materials Engineering, Beijing Technology and Business University, Beijing 100048, China
| | - Ziyi Xiong
- Beijing Key Laboratory of Plant Resources Research and Development, College of Chemistry and Materials Engineering, Beijing Technology and Business University, Beijing 100048, China
| | - Ying Tang
- Beijing Key Laboratory of Plant Resources Research and Development, College of Chemistry and Materials Engineering, Beijing Technology and Business University, Beijing 100048, China.
| | - Xi Zhang
- Beijing Key Laboratory of Plant Resources Research and Development, College of Chemistry and Materials Engineering, Beijing Technology and Business University, Beijing 100048, China.
| | - Yongjun Feng
- State Key Laboratory of Chemical Resource Engineering, College of Chemistry, Beijing University of Chemical Technology, Beijing 100029, China; Gansu West Attapulgite Application Research Institute, Baiyin, Gansu 730900, China.
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Sun X, Chen M, Lei J, Liu X, Ke X, Liu W, Wang J, Gao X, Liu X, Zhang Y. How β-cyclodextrin- loaded mesoporous SiO 2 nanospheres ensure efficient adsorption of rifampicin. Front Chem 2022; 10:1040435. [PMID: 36583155 PMCID: PMC9794459 DOI: 10.3389/fchem.2022.1040435] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2022] [Accepted: 10/24/2022] [Indexed: 12/15/2022] Open
Abstract
In this study, β-CD@mesoporous SiO2 nanospheres (β-CD@mSi) were prepared by loading β-cyclodextrin (β-CD) onto mesoporous silica nanospheres through an in situ synthesis. This not only solved the defect of β-CD being easily soluble in water, but also changed the physical structure of the mesoporous silica nanospheres. FTIR and XPS results showed that β-CD was successfully loaded onto mesoporous silica nanospheres (mSi), while enhancing the adsorption effect. β-CD@mSi with a monomer diameter of about 150 nm were prepared. At a temperature of 298k, the removal efficiency of a 100 mg/L solution of rifampicin can reach 90% in 4 h and the adsorption capacity was 275.42 mg g-1 at high concentration. Through the calculation and analysis of adsorption kinetics, adsorption isotherms and adsorption thermodynamics based on the experimental data, the reaction is a spontaneous endothermic reaction dominated by chemical adsorption. The electron transfer pathway, structure-activity relationship and energy between β-CD@mSi and rifampicin were investigated by quantum chemical calculations. The accuracy of the characterization test results to judge the adsorption mechanism was verified, to show the process of rifampicin removal by β-CD@mSi more clearly and convincingly. The simulation results show that π-π interaction plays a major interaction in the reaction process, followed by intermolecular hydrogen bonding and electrostatic interactions.
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Affiliation(s)
- Xun Sun
- Northeast Key Laboratory of Arable Land Conservation and Improvement, Ministry of Agriculture, College of Land and Environment, Shenyang Agricultural University, Shenyang, China
- Liaoning Key Laboratory of Clean Energy and College of Energy and Environmental, Shenyang Aerospace University, Shenyang, China
| | - Mingming Chen
- Liaoning Key Laboratory of Clean Energy and College of Energy and Environmental, Shenyang Aerospace University, Shenyang, China
| | - Jiayu Lei
- Liaoning Key Laboratory of Clean Energy and College of Energy and Environmental, Shenyang Aerospace University, Shenyang, China
| | - Xinran Liu
- Liaoning Key Laboratory of Clean Energy and College of Energy and Environmental, Shenyang Aerospace University, Shenyang, China
| | - Xin Ke
- Liaoning Key Laboratory of Clean Energy and College of Energy and Environmental, Shenyang Aerospace University, Shenyang, China
| | - Wengang Liu
- School of Resources and Civil Engineering, Northeastern University, Shenyang, China
| | - Jingkuan Wang
- Northeast Key Laboratory of Arable Land Conservation and Improvement, Ministry of Agriculture, College of Land and Environment, Shenyang Agricultural University, Shenyang, China
| | - Xiaodan Gao
- Northeast Key Laboratory of Arable Land Conservation and Improvement, Ministry of Agriculture, College of Land and Environment, Shenyang Agricultural University, Shenyang, China
| | - Xin Liu
- Liaoning Key Laboratory of Clean Energy and College of Energy and Environmental, Shenyang Aerospace University, Shenyang, China
| | - Yun Zhang
- Northeast Key Laboratory of Arable Land Conservation and Improvement, Ministry of Agriculture, College of Land and Environment, Shenyang Agricultural University, Shenyang, China
- *Correspondence: Yun Zhang,
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de Assis MLM, Junior ED, de Almeida JMF, do Nascimento Silva I, Barbosa RV, Dos Santos LM, Dias EF, Fernandes NS, Martinez-Huitle CA. Photocatalytic degradation of Novacron blue and Novacron yellow textile dyes by the TiO 2/palygorskite nanocomposite. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:64440-64460. [PMID: 34312752 DOI: 10.1007/s11356-021-15519-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/13/2021] [Accepted: 07/15/2021] [Indexed: 06/13/2023]
Abstract
The photocatalytic discoloration of industrial dyes, Novacron blue (NB) and Novacron yellow (NY), was investigated using composites based on TiO2 and natural palygorskite (Pal-Ti10 and Pal-Ti30). The method consisted of synthesizing the composites starting from a physical mixture of TiO2 and natural palygorskite in the presence of alcohol, for impregnation through calcination under conditions of temperature equal to 450 °C and atmospheric air. The characterization techniques used in this work were FTIR, XRD, XRF, SEM, particle size analysis and zeta potential. The photocatalysis for the NB dye was investigated through the application of a factorial 24 experimental design, aiming at the best experimental conditions and finally applying them in another NY industrial dye. The investigated concentrations of NB were 10 ppm and 30 ppm, the composites were synthesized using 10 and 30% (p/p) of titanium dioxide in palygorskite, the two pH values were 2.0 and 6.0 and the light intensities 9 and 18 W were used. Tests performed at pH 2.0, Pal-Ti30 composite, power 18 W and 10 ppm of dye showed 100% color removal of both dyes in 90 min. The bleaching process followed the pseudo-first order kinetic model, and the apparent constants (Kapp) were 0.0216 min-1 and 0.0193 min-1 for NB and NY dyes, respectively. The results of total organic carbon (TOC) showed mineralization of 61.70% and 58.06% for NB and NY, respectively, in 90 min of treatment, and the by-products were detected by GC-MS.
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Affiliation(s)
- Mikaely Lizandra Moreira de Assis
- Universidade Federal do Rio Grande do Norte, Instituto de Química, Laboratório de Química Analítica e Meio Ambiente-LAQUAM, Campus Universitário Lagoa Nova, Natal, RN, Brasil
| | - Elmar Damasceno Junior
- Universidade Federal do Rio Grande do Norte, Instituto de Química, Laboratório de Química Analítica e Meio Ambiente-LAQUAM, Campus Universitário Lagoa Nova, Natal, RN, Brasil.
| | - Janiele Mayara Ferreira de Almeida
- Universidade Federal do Rio Grande do Norte, Instituto de Química, Laboratório de Química Analítica e Meio Ambiente-LAQUAM, Campus Universitário Lagoa Nova, Natal, RN, Brasil
| | - Isabel do Nascimento Silva
- Universidade Federal do Rio Grande do Norte, Instituto de Química, Laboratório de Química Analítica e Meio Ambiente-LAQUAM, Campus Universitário Lagoa Nova, Natal, RN, Brasil
| | - Rodrigo Victor Barbosa
- Universidade Federal do Rio Grande do Norte, Instituto de Química, Laboratório de Química Analítica e Meio Ambiente-LAQUAM, Campus Universitário Lagoa Nova, Natal, RN, Brasil
| | - Lamara Maciel Dos Santos
- Universidade Federal do Rio Grande do Norte, Instituto de Química, Laboratório de Química Analítica e Meio Ambiente-LAQUAM, Campus Universitário Lagoa Nova, Natal, RN, Brasil
| | - Elizete Faustino Dias
- Universidade Federal do Rio Grande do Norte, Instituto de Química, Laboratório de Química Analítica e Meio Ambiente-LAQUAM, Campus Universitário Lagoa Nova, Natal, RN, Brasil
| | - Nedja Suely Fernandes
- Universidade Federal do Rio Grande do Norte, Instituto de Química, Laboratório de Química Analítica e Meio Ambiente-LAQUAM, Campus Universitário Lagoa Nova, Natal, RN, Brasil
| | - Carlos Alberto Martinez-Huitle
- Universidade Federal do Rio Grande do Norte, Instituto de Química, Laboratório de Eletroquímica Ambiental e Aplicada-LEAA, Campus Universitário Lagoa Nova, Natal, RN, Brasil
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Problems associated with the use of the term "antibiotics". Naunyn Schmiedebergs Arch Pharmacol 2021; 394:2153-2166. [PMID: 34536087 PMCID: PMC8449524 DOI: 10.1007/s00210-021-02144-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2021] [Accepted: 08/25/2021] [Indexed: 11/24/2022]
Abstract
The term “antibiotics” is a broadly used misnomer to designate antibacterial drugs. In a recent article, we have proposed to replace, e.g., the term “antibiotics” by “antibacterial drugs”, “antibiosis” by “antibacterial therapy”, “antibiogram” by “antibacteriogram”, and “antibiotic stewardship” by “antibacterial stewardship” (Seifert and Schirmer Trends Microbiol, 2021). In the present article, we show that many traditional terms related to antibiotics are used much more widely in the biomedical literature than the respective scientifically precise terms. This practice should be stopped. Moreover, we provide arguments to end the use of other broadly used terms in the biomedical literature such as “narrow-spectrum antibiotics” and “reserve antibiotics”, “chemotherapeutics”, and “tuberculostatics”. Finally, we provide several examples showing that antibacterial drugs are used for non-antibacterial indications and that some non-antibacterial drugs are used for antibacterial indications now. Thus, the increasing importance of drug repurposing renders it important to drop short designations of drug classes such as “antibiotics”. Rather, the term “drug” should be explicitly used, facilitating the inclusion of newly emerging indications such as antipsychotic and anti-inflammatory. This article is part of an effort to implement a new rational nomenclature of drug classes across the entire field of pharmacology.
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Seifert R, Schirmer B. A case to stop the use of the term 'antibiotics'. Trends Microbiol 2021; 29:963-966. [PMID: 33895061 DOI: 10.1016/j.tim.2021.03.017] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2021] [Revised: 03/26/2021] [Accepted: 03/29/2021] [Indexed: 11/18/2022]
Abstract
The word 'antibiotics' is an historical, but imprecise, term. Today, 'antibiotics' are also used for other indications and 'non-antibiotics' are repurposed for infectious diseases. This situation calls for a revision of antipathogenic drug terminology. The use of correct terms will facilitate rational antipathogenic treatment and understanding of drug repurposing.
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Affiliation(s)
- Roland Seifert
- Institute of Pharmacology, Hannover Medical School, Carl-Neuberg-Str. 1, D-30625 Hannover, Germany.
| | - Bastian Schirmer
- Institute of Pharmacology, Hannover Medical School, Carl-Neuberg-Str. 1, D-30625 Hannover, Germany
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