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Huang Y, Liang Y, Chen Y, Xiong Q, Li X, Li J, Wang L, Cui J. Emamectin-sodium alginate nano-formulation based on charge attraction with highly improved systemic translocation and photolysis resistance. Int J Biol Macromol 2024; 254:127996. [PMID: 37949281 DOI: 10.1016/j.ijbiomac.2023.127996] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2023] [Revised: 11/05/2023] [Accepted: 11/07/2023] [Indexed: 11/12/2023]
Abstract
Nano pesticides offer an effective means of improving the bioavailability of pesticide due to their excellent solubility and wettability, superior foliar adhesion, and permeability to target insects. By using high-speed homogenization and ultrasonic dispersion technology, an emamectin-sodium alginate nano-formulation (EB@SA) with a particle size ranging from 30 to 50 nm was successfully fabricated using electrostatic self-assembly. The microscopic morphology and structure of EB@SA were further analyzed through transmission electron microscopy, dynamic light scattering, infrared spectroscopy, and 1H NMR. The photolysis resistance behavior of EB@SA demonstrated an improved anti-photolysis ability more than double that of conventional formulations while also exhibiting good sustained-release properties. Not only does EB@SA maintain the inherent insecticidal toxicity of emamectin benzoate (EB), but it also significantly prolongs its insecticidal duration. At a concentration of 20 mg/L, the lethality rate against Armyworms remains above 70 % over a period of 16 days compared to <50 % for general emamectin emulsifiable concentrate. Furthermore, EB@SA greatly enhances the systemic translocation of EB in corn plants by exhibiting favorable bidirectional systemic translocation characteristics. This research presents an efficient and environmentally friendly pesticide nano-formulation that can be effectively utilized for field pest control.
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Affiliation(s)
- Yanmin Huang
- Guangxi Key Laboratory of Natural Polymer Chemistry and Physics, Nanning Normal University, Nanning, 530001, PR China
| | - Yinze Liang
- Guangxi Key Laboratory of Natural Polymer Chemistry and Physics, Nanning Normal University, Nanning, 530001, PR China
| | - Yong Chen
- Guangxi Key Laboratory of Natural Polymer Chemistry and Physics, Nanning Normal University, Nanning, 530001, PR China
| | - Qipeng Xiong
- Guangxi Key Laboratory of Natural Polymer Chemistry and Physics, Nanning Normal University, Nanning, 530001, PR China.
| | - Xiangying Li
- Guangxi Key Laboratory of Natural Polymer Chemistry and Physics, Nanning Normal University, Nanning, 530001, PR China
| | - Jiansheng Li
- Guangxi Key Laboratory of Natural Polymer Chemistry and Physics, Nanning Normal University, Nanning, 530001, PR China
| | - Linlin Wang
- Guangxi Key Laboratory of Natural Polymer Chemistry and Physics, Nanning Normal University, Nanning, 530001, PR China
| | - Jianguo Cui
- Guangxi Key Laboratory of Natural Polymer Chemistry and Physics, Nanning Normal University, Nanning, 530001, PR China.
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2
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Hou J, Li Z, Xia J, Huo Z, Wu J. The effect of FeS on the fate of Cr(VI) in the presence of organic matters under dynamic anoxic/oxic conditions. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:67472-67484. [PMID: 37115447 DOI: 10.1007/s11356-023-27251-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2023] [Accepted: 04/23/2023] [Indexed: 05/25/2023]
Abstract
The reduction of Cr(VI) by FeS under anoxic conditions has been studied extensively. However, when the redox environments alternate from anoxic to oxic, the effect of FeS on the fate of Cr(VI) in the presence of organic matters still remains unknown. Therefore, this study investigated the effect of FeS coupled with humic acids (HA) and alga on the transformation of Cr(VI) under dynamic anoxic/oxic conditions. HA could promote the reduction of Cr(VI) from 86.6% to 100% under anoxic conditions due to the enhancement of the dissolution and dispersibility of FeS particles by HA. However, the strong complexing and oxidizing properties of alga inhibited the reduction of FeS. Reactive oxygen species (ROS) generated from FeS oxidation under oxic conditions could oxidize 3.80 μM of Cr(III) to aqueous Cr(VI) at pH 5.0, while aqueous Cr(VI) reached to 4.83 μM in the presence of HA, which was ascribed to the increasing amount of free radicals. In addition, acidic conditions and excess FeS would increase strong reducing Fe(II) and S(-II) species, and improve the efficiency of Fenton reaction. The findings provided new insights into the fate of Cr(VI) in aquatic systems containing FeS and organic matters under dynamic anoxic/oxic conditions.
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Affiliation(s)
- Jun Hou
- Key Laboratory of Integrated Regulation and Resources Development On Shallow Lakes of Ministry of Education, College of Environment, Hohai University, Nanjing, 210098, China
| | - Zhenyu Li
- Key Laboratory of Integrated Regulation and Resources Development On Shallow Lakes of Ministry of Education, College of Environment, Hohai University, Nanjing, 210098, China
| | - Jun Xia
- College of Civil and Transportation Engineering, Hohai University, Nanjing, 210098, China
| | - Zongli Huo
- Jiangsu Provincial Center for Disease Control and Prevention, Nanjing, China
| | - Jun Wu
- Key Laboratory of Integrated Regulation and Resources Development On Shallow Lakes of Ministry of Education, College of Environment, Hohai University, Nanjing, 210098, China.
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Exploration of Nanosilver Calcium Alginate-Based Multifunctional Polymer Wafers for Wound Healing. Pharmaceutics 2023; 15:pharmaceutics15020483. [PMID: 36839805 PMCID: PMC9968014 DOI: 10.3390/pharmaceutics15020483] [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: 01/10/2023] [Revised: 01/24/2023] [Accepted: 01/26/2023] [Indexed: 02/04/2023] Open
Abstract
Wound care is an integral part of effective recovery. However, its associated financial burden on national health services globally is significant enough to warrant further research and development in this field. In this study, multifunctional polymer wafers were prepared, which provide antibacterial activity, high cell viability, high swelling capacity and a thermally stable medium which can be used to facilitate the delivery of therapeutic agents. The purpose of this polymer wafer is to facilitate wound healing, by creating nanosilver particles within the polymer matrix itself via a one-pot synthesis method. This study compares the use of two synthetic agents in tandem, detailing the effects on the morphology and size of nanosilver particles. Two synthetic methods with varying parameters were tested, with one method using silver nitrate, calcium chloride and sodium alginate, whilst the other included aloe vera gel as an extra component, which serves as another reductant for nanosilver synthesis. Both methods generated thermally stable alginate matrices with high degrees of swelling capacities (400-900%) coupled with interstitially formed nanosilver of varying shapes and sizes. These matrices exhibited controlled nanosilver release rates which were able to elicit antibacterial activity against MRSA, whilst maintaining an average cell viability value of above 90%. Based on the results of this study, the multifunctional polymer wafers that were created set the standard for future polymeric devices for wound healing. These polymer wafers can then be further modified to suit specific types of wounds, thereby allowing this multifunctional polymer wafer to be applied to different wounding scenarios.
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4
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Piras CC, Mahon CS, Genever PG, Smith DK. Shaping and Patterning Supramolecular Materials─Stem Cell-Compatible Dual-Network Hybrid Gels Loaded with Silver Nanoparticles. ACS Biomater Sci Eng 2022; 8:1829-1840. [PMID: 35364810 PMCID: PMC9092345 DOI: 10.1021/acsbiomaterials.1c01560] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
![]()
Hydrogels
with spatio-temporally
controlled properties are appealing
materials for biological and pharmaceutical applications. We make
use of mild acidification protocols to fabricate hybrid gels using
calcium alginate in the presence of a preformed thermally triggered
gel based on a low-molecular-weight gelator (LMWG) 1,3:2:4-di(4-acylhydrazide)-benzylidene
sorbitol (DBS-CONHNH2). Nonwater-soluble calcium carbonate
slowly releases calcium ions over time when exposed to an acidic pH,
triggering the assembly of the calcium alginate gel network. We combined
the gelators in different ways: (i) the LMWG was used as a template
to spatially control slow calcium alginate gelation within preformed
gel beads, using glucono-δ-lactone (GdL) to lower the pH; (ii)
the LMWG was used as a template to spatially control slow calcium
alginate gelation within preformed gel trays, using diphenyliodonium
nitrate (DPIN) as a photoacid to lower the pH, and spatial resolution
was achieved by masking. The dual-network hybrid gels display highly
tunable properties, and the beads are compatible with stem cell growth.
Furthermore, they preserve the LMWG function of inducing in situ silver
nanoparticle (AgNP) formation, which provides the gels with antibacterial
activity. These gels have potential for eventual regenerative medicine
applications in (e.g.) bone tissue engineering.
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Affiliation(s)
- Carmen C Piras
- Department of Chemistry, University of York, Heslington, York YO10 5DD, United Kingdom
| | - Clare S Mahon
- Department of Chemistry, University of York, Heslington, York YO10 5DD, United Kingdom
| | - Paul G Genever
- Department of Biology, University of York, Heslington, York YO10 5DD, United Kingdom
| | - David K Smith
- Department of Chemistry, University of York, Heslington, York YO10 5DD, United Kingdom
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Rehman N, Dilshad MR, Islam A, Gull N, Riaz T, Khan SM, Khan RU. Novel graphene oxide loaded sodium alginate hydrogels cross-linked with tetraethyl orthosilicate for cephradine release analysis. J Drug Deliv Sci Technol 2021. [DOI: 10.1016/j.jddst.2021.102784] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Damle A, Muthusamy S, Nag R, Das RK, Srivastava P. Characterization of alginate-capped nanosilver by fractal and entropy analysis on its transmission electron microphotographs. Micron 2020; 140:102963. [PMID: 33130547 DOI: 10.1016/j.micron.2020.102963] [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: 05/16/2020] [Revised: 08/21/2020] [Accepted: 10/07/2020] [Indexed: 10/23/2022]
Abstract
The study employs conventional techniques and quantitative image analysis tools to characterize alginate-capped nanosilver synthesized by green methods. Sodium Alginate (0.5 %, 1 % and 2 %) was used as a reducing and stabilizing agent. Presence of particles was confirmed by UV-vis Spectroscopy, with absorbance maxima of 412-413 nm for 0.5 %, 1 % and 2 % of polymer. Hydrodynamic sizes of particles recorded for 0.5 %, 1 % and 2 % polymer were 128.4 ± 1.5, 129.9 ± 3.6 and 148.6 ± 1.0 nm by DLS. TEM revealed roughly spherical to cuboidal particles ranging from 15-20 nm and clusters of 100 nm and Energy Dispersive X-ray Spectroscopy confirmed the presence of silver in the particles. Analysis of the TEM images was done in MATLAB R2016b using histogram equalisation for image enhancement and entropy filtering for image segmentation. These techniques revealed the surface pores and polymer distribution around the particle. Statistical analysis (ANOVA) was performed for the measured fractal dimensions of nanoparticles with polymer coating, width of particle together with polymer coating, and thickness of only polymer coating around the particle for various study groups. Significant differences (p < 0.05) were found both between and within the study groups for fractal dimensions of nanoparticles with polymer coating, width of nanoparticles and thickness of polymer coating alone. The analysis was successful in confirming presence and thickness of polymer layer on particles.
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Affiliation(s)
- Atharva Damle
- Department of Biosciences, School of Bio Sciences and Technology, Vellore Institute of Technology, Vellore , Tamil Nadu, 632014, India
| | - Sangeetha Muthusamy
- Department of Biosciences, School of Bio Sciences and Technology, Vellore Institute of Technology, Vellore , Tamil Nadu, 632014, India
| | - Reetoja Nag
- Centre for Biomaterials, Cellular and Molecular Theranostics, Vellore Institute of Technology, Vellore, Tamil Nadu, 632014, India
| | - Raunak Kumar Das
- Centre for Biomaterials, Cellular and Molecular Theranostics, Vellore Institute of Technology, Vellore, Tamil Nadu, 632014, India
| | - Priyanka Srivastava
- Department of Biosciences, School of Bio Sciences and Technology, Vellore Institute of Technology, Vellore , Tamil Nadu, 632014, India.
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Yang P, Liang Y, Zhang D, Zhang J, Li S, Liu W. Synthesis of Silver Nanoplates with the Assistance of Natural Polymer (Sodium Alginate) Under 0 °C. MATERIALS (BASEL, SWITZERLAND) 2020; 13:E3827. [PMID: 32872579 PMCID: PMC7503834 DOI: 10.3390/ma13173827] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/28/2020] [Revised: 07/21/2020] [Accepted: 08/26/2020] [Indexed: 06/11/2023]
Abstract
Some special conditions are important for chemical syntheses, such as high temperature and the medium used; unfortunately, uncontrollable influences are introduced during the process, resulting in unexpectedly low repeatability. Herein, we report a facile, environmentally friendly, stable, and repeatable methodology for synthesizing silver nanoplates (SNPs) at 0 °C that overcomes these issues and dramatically increases the yield. This method mainly employs sodium dodecyl sulfate (SDS) and sodium alginate (SA) as the surface stabilizer and assistant, respectively. Consequently, we produced hexagonal nanoplates and tailed nanoplates, and the characterization showed that SA dominates the clear and regular profiles of nanoplates at 0 °C. The tailed nanoplates, over time, showed the growth of heads and the dissolving of tails, and inclined to the nanoplates without tails. The synthesis method for SNPs used in this study-0 °C without media-showed high repeatability. We confirmed that these special conditions are not required for the synthesis of silver nanostructures (SNSs). Furthermore, we constructed a new method for preparing noble metal nanostructures and proved the possibility of preparing metal nanostructures at 0 °C.
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Affiliation(s)
- Pengfei Yang
- Shaanxi Province Key Laboratory of Thin Films Technology and Optical Test, Xi’an Technological University, Xi’an 710032, China; (P.Y.); (Y.L.); (J.Z.); (S.L.)
| | - Yu Liang
- Shaanxi Province Key Laboratory of Thin Films Technology and Optical Test, Xi’an Technological University, Xi’an 710032, China; (P.Y.); (Y.L.); (J.Z.); (S.L.)
| | - Daxiao Zhang
- School of Physics and Technology, Wuhan University, Wuhan 430072, China;
| | - Jin Zhang
- Shaanxi Province Key Laboratory of Thin Films Technology and Optical Test, Xi’an Technological University, Xi’an 710032, China; (P.Y.); (Y.L.); (J.Z.); (S.L.)
| | - Shijie Li
- Shaanxi Province Key Laboratory of Thin Films Technology and Optical Test, Xi’an Technological University, Xi’an 710032, China; (P.Y.); (Y.L.); (J.Z.); (S.L.)
| | - Weiguo Liu
- Shaanxi Province Key Laboratory of Thin Films Technology and Optical Test, Xi’an Technological University, Xi’an 710032, China; (P.Y.); (Y.L.); (J.Z.); (S.L.)
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8
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Piras CC, Mahon CS, Smith DK. Self-Assembled Supramolecular Hybrid Hydrogel Beads Loaded with Silver Nanoparticles for Antimicrobial Applications. Chemistry 2020; 26:8452-8457. [PMID: 32294272 PMCID: PMC7384024 DOI: 10.1002/chem.202001349] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2020] [Revised: 04/08/2020] [Indexed: 12/28/2022]
Abstract
This Full Paper reports the formation of silver (Ag) NPs within spatially resolved two-component hydrogel beads, which combine a low-molecular-weight gelator (LMWG) DBS-CONHNH2 and a polymer gelator (PG) calcium alginate. The AgNPs are formed through in situ reduction of AgI , with the resulting nanoparticle-loaded gels being characterised in detail. The antibacterial activity of the nanocomposite gel beads was tested against two drug-resistant bacterial strains, often associated with hospital-acquired infections: vancomycin-resistant Enterococcus faecium (VRE) and Pseudomonas aeruginosa (PA14), and the AgNP-loaded gels showed good antimicrobial properties against both types of bacteria. It is suggested that the gel bead format of these AgNP-loaded hybrid hydrogels makes them promising versatile materials for potential applications in orthopaedics or wound healing.
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Affiliation(s)
- Carmen C. Piras
- Department of ChemistryUniversity of YorkHeslingtonYorkYO10 5DDUK
| | - Clare S. Mahon
- Department of ChemistryUniversity of YorkHeslingtonYorkYO10 5DDUK
| | - David K. Smith
- Department of ChemistryUniversity of YorkHeslingtonYorkYO10 5DDUK
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9
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Yao Y, Mi N, He C, He H, Zhang Y, Zhang Y, Yin L, Li J, Yang S, Li S, Ni L. Humic acid modified nano-ferrous sulfide enhances the removal efficiency of Cr(VI). Sep Purif Technol 2020. [DOI: 10.1016/j.seppur.2020.116623] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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10
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Li Y, Pi QM, You HH, Li JQ, Wang PC, Yang X, Wu Y. A smart multi-functional coating based on anti-pathogen micelles tethered with copper nanoparticlesviaa biosynthesis method usingl-vitamin C. RSC Adv 2018; 8:18272-18283. [PMID: 35541145 PMCID: PMC9080516 DOI: 10.1039/c8ra01985a] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2018] [Accepted: 05/13/2018] [Indexed: 01/29/2023] Open
Abstract
A multi-functional anti-pathogen coating with “release-killing”, “contact-killing” and “anti-adhesion” properties was prepared from biocompatible polymer encapsulated chlorine dioxide (ClO2) which protected the active ingredient from the outside environment.
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Affiliation(s)
- Yan Li
- Key Laboratory for Deep Processing of Major Grain and Oil (Wuhan Polytechnic University)
- Ministry of Education
- College of Food Science and Engineering
- Wuhan Polytechnic University
- Wuhan 430023
| | - Qing-meng Pi
- Department of Plastic and Reconstructive Surgery
- Renji Hospital
- Shanghai Jiaotong University School of Medicine
- Shanghai 200129
- P. R. China
| | - Hui-hui You
- Hubei Key Laboratory of Genetic Regulation and Integrative Biology
- College of Life Sciences
- Central China Normal University
- Wuhan 430079
- P. R. China
| | - Jin-quan Li
- Brain and Cognitive Dysfunction Research Center
- School of Medicine
- Wuhan University of Science and Technology
- Wuhan 430081
- P. R. China
| | - Peng-cheng Wang
- Key Laboratory for Deep Processing of Major Grain and Oil (Wuhan Polytechnic University)
- Ministry of Education
- College of Food Science and Engineering
- Wuhan Polytechnic University
- Wuhan 430023
| | - Xu Yang
- Hubei Key Laboratory of Genetic Regulation and Integrative Biology
- College of Life Sciences
- Central China Normal University
- Wuhan 430079
- P. R. China
| | - Yang Wu
- Key Laboratory for Deep Processing of Major Grain and Oil (Wuhan Polytechnic University)
- Ministry of Education
- College of Food Science and Engineering
- Wuhan Polytechnic University
- Wuhan 430023
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11
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Wu J, Wang XB, Zeng RJ. Reactivity enhancement of iron sulfide nanoparticles stabilized by sodium alginate: Taking Cr (VI) removal as an example. JOURNAL OF HAZARDOUS MATERIALS 2017; 333:275-284. [PMID: 28371713 DOI: 10.1016/j.jhazmat.2017.03.023] [Citation(s) in RCA: 86] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/09/2016] [Revised: 02/22/2017] [Accepted: 03/10/2017] [Indexed: 06/07/2023]
Abstract
The widespread distribution of chromium(VI) in the environment leads to groundwater contamination. The use of iron sulfide (FeS) to remove Cr(VI) has therefore been proposed. However, aggregation is one of the main problems associated with the use of FeS nanoparticles prepared by traditional methods In this study, we used sodium alginate (SA) to stabilize FeS nanoparticles (FeS-SA). SA could prevent aggregation of FeS by the concurrent electrostatic repulsion and steric hindrance. Homogeneously dispersed FeS-SA nanoparticles 100nm in diameter were observed. FeS-SA showed high efficiency in Cr(VI) removal, corresponding to an enhancement of efficiency from 65% (7.50mmol Cr(VI) per g FeS) to 100% (11.54mmol Cr per g FeS) relative to that achieved with naked FeS. Analysis of reaction products by X-ray diffraction and X-ray photoelectron spectroscopy revealed the co-existence of α-FeOOH, S8, and Cr(OH)3 that apparently were introduced by Fe(II), S(-II), and Cr(VI), respectively. In-depth analysis of the removal mechanism revealed that reduction and adsorption respectively account for 82% and 18% of the Cr removal. In addition, higher pH and CaCl2 concentration resulted in lower removal efficiency. This study provides a promising application of SA in enhancing FeS reactivity for the remediation of groundwater pollution.
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Affiliation(s)
- Jun Wu
- CAS Key Laboratory for Urban Pollutant Conversion, Department of Chemistry, University of Science & Technology of China, Hefei 230026, PR China
| | - Xian-Bin Wang
- CAS Key Laboratory for Urban Pollutant Conversion, Department of Chemistry, University of Science & Technology of China, Hefei 230026, PR China
| | - Raymond J Zeng
- CAS Key Laboratory for Urban Pollutant Conversion, Department of Chemistry, University of Science & Technology of China, Hefei 230026, PR China.
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Lengert E, Saveleva M, Abalymov A, Atkin V, Wuytens PC, Kamyshinsky R, Vasiliev AL, Gorin DA, Sukhorukov GB, Skirtach AG, Parakhonskiy B. Silver Alginate Hydrogel Micro- and Nanocontainers for Theranostics: Synthesis, Encapsulation, Remote Release, and Detection. ACS APPLIED MATERIALS & INTERFACES 2017; 9:21949-21958. [PMID: 28603966 DOI: 10.1021/acsami.7b08147] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
We have designed multifunctional silver alginate hydrogel microcontainers referred to as loaded microcapsules with different sizes by assembling them via a template assisted approach using natural, highly porous calcium carbonate cores. Sodium alginate was immobilized into the pores of calcium carbonate particles of different sizes followed by cross-linking via addition of silver ions, which had a dual purpose: on one hand, the were used as a cross-linking agent, albeit in the monovalent form, while on the other hand they have led to formation of silver nanoparticles. Monovalent silver ions, an unusual cross-linking agent, improve the sensitivity to ultrasound, lead to homogeneous distribution of silver nanoparticles. Silver nanoparticles appeared on the shell of the alginate microcapsules in the twin-structure as determined by transmission electron microscopy. Remote release of a payload from alginate containers by ultrasound was found to strongly depend on the particle size. The possibility to use such particles as a platform for label-free molecule detection based on the surface enhanced Raman scattering was demonstrated. Cytotoxicity and cell uptake studies conducted in this work have revealed that microcontainers exhibit nonessential level of toxicity with an efficient uptake of cells. The above-described functionalities constitute building blocks of a theranostic system, where detection and remote release can be achieved with the same carrier.
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Affiliation(s)
- Ekaterina Lengert
- Department of Nano- and Biomedical Technologies, Saratov State University , Astrakhanskaya 83, 410012 Saratov, Russia
- Department of Molecular Biotechnology, Ghent University , Coupure Links 653, 9000 Gent, Belgium
| | - Mariia Saveleva
- Department of Nano- and Biomedical Technologies, Saratov State University , Astrakhanskaya 83, 410012 Saratov, Russia
- Department of Molecular Biotechnology, Ghent University , Coupure Links 653, 9000 Gent, Belgium
| | - Anatolii Abalymov
- Department of Nano- and Biomedical Technologies, Saratov State University , Astrakhanskaya 83, 410012 Saratov, Russia
| | - Vsevolod Atkin
- Department of Nano- and Biomedical Technologies, Saratov State University , Astrakhanskaya 83, 410012 Saratov, Russia
| | - Pieter C Wuytens
- Department of Molecular Biotechnology, Ghent University , Coupure Links 653, 9000 Gent, Belgium
- Photonics Research Group, INTEC Department, Ghent University - imec , Technologiepark 15, 9052 Zwijnaarde, Belgium
| | - Roman Kamyshinsky
- National Research Center, Kurchatov Institute , Akademika Kurchatova pl., 1, 123182 Moscow, Russia
- Moscow Institute of Physics and Technology , Institutsky lane 9, Dolgoprudny, 141700 Moscow region, Russia
| | - Alexander L Vasiliev
- National Research Center, Kurchatov Institute , Akademika Kurchatova pl., 1, 123182 Moscow, Russia
- A.V. Shubnikov Institute of Crystallography, Russian Academy of Science , Leninskiy prospect, 59, 119333 Moscow, Russia
| | - Dmitry A Gorin
- Department of Nano- and Biomedical Technologies, Saratov State University , Astrakhanskaya 83, 410012 Saratov, Russia
| | - Gleb B Sukhorukov
- School of Engineering and Materials Science, Queen Mary University of London , Mile End Road, London, E1 4NS, U.K
| | - Andre G Skirtach
- Department of Molecular Biotechnology, Ghent University , Coupure Links 653, 9000 Gent, Belgium
| | - Bogdan Parakhonskiy
- Department of Molecular Biotechnology, Ghent University , Coupure Links 653, 9000 Gent, Belgium
- A.V. Shubnikov Institute of Crystallography, Russian Academy of Science , Leninskiy prospect, 59, 119333 Moscow, Russia
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13
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Preparation of cotton fabric using sodium alginate-coated nanoparticles to protect against nosocomial pathogens. Biochem Eng J 2017. [DOI: 10.1016/j.bej.2016.10.020] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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14
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Wang K, Ji Q, Li H, Guan F, Zhang D, Feng H, Fan H. Synthesis and antibacterial activity of silver@carbon nanocomposites. J Inorg Biochem 2016; 166:64-67. [PMID: 27835776 DOI: 10.1016/j.jinorgbio.2016.11.002] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2016] [Revised: 10/13/2016] [Accepted: 11/03/2016] [Indexed: 01/13/2023]
Abstract
In this work, hollow multiple-Ag-nanoclustes- C-shell nanocomposites (Ag@C) were synthesized by using silane coupling agent to graft carbon dots (CDs) with silver nanoparticles (AgNPs). CDs act as coating and stabilizing agent, protecting AgNPs from aggregation and oxidation. The resulting Ag@C nanocomposites demonstrate strong bactericidal effect against both gram-negative and gram-positive bacteria in the disk diffusion test. Cellular toxicity evaluation was performed using MTT assay. Meanwhile, the as-prepared Ag@C nanocomposites show a good biocompatibility.
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Affiliation(s)
- Kunjie Wang
- College of Petrochemical Technology, Lanzhou University of Technology, Lanzhou 730050, China.
| | - Qingjuan Ji
- College of Petrochemical Technology, Lanzhou University of Technology, Lanzhou 730050, China
| | - Hongxia Li
- College of Petrochemical Technology, Lanzhou University of Technology, Lanzhou 730050, China
| | - Feng Guan
- College of Petrochemical Technology, Lanzhou University of Technology, Lanzhou 730050, China
| | - Deyi Zhang
- College of Petrochemical Technology, Lanzhou University of Technology, Lanzhou 730050, China
| | - Huixia Feng
- College of Petrochemical Technology, Lanzhou University of Technology, Lanzhou 730050, China
| | - Haiyan Fan
- Chemistry Department, School of Science and Technology, Nazarbayev University, Astana 010000, Kazakhstan
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15
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Zheng H, Yang J, Han S. The synthesis and characteristics of sodium alginate/graphene oxide composite films crosslinked with multivalent cations. J Appl Polym Sci 2016. [DOI: 10.1002/app.43616] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Haicheng Zheng
- College of Chemistry and Chemical Engineering; Yangzhou University; Yangzhou 225002 China
| | - Jisheng Yang
- College of Chemistry and Chemical Engineering; Yangzhou University; Yangzhou 225002 China
| | - Suya Han
- College of Chemistry and Chemical Engineering; Yangzhou University; Yangzhou 225002 China
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16
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Craig M, Altskär A, Nordstierna L, Holmberg K. Bacteria-triggered degradation of nanofilm shells for release of antimicrobial agents. J Mater Chem B 2015; 4:672-682. [PMID: 32262949 DOI: 10.1039/c5tb01274k] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Due to an increase in lifestyle diseases in the developed world, the number of chronic wounds is increasing at a fast pace. Chronic wound infections are common and systemic antibiotics are usually used as a treatment. In this paper we describe an approach to encapsulate antimicrobial agents in hollow microcapsules covered with a nanofilm shell that degrades through the action of a virulence factor from Pseudomonas aeruginosa. The shell was assembled using the layer-by-layer (LbL) technique with poly-l-lysine and hyaluronic acid. The microcapsules were loaded with a model substrate or a drug. By crosslinking the components in the nanofilm, the film remained intact when exposed to human wound proteases. However, the film was degraded and the drug exposed when in contact with Pseudomonas aeruginosa's Lys-X specific protease IV. The antimicrobial efficacy of the drug-loaded microcapsules was confirmed by exposure to virulent Pseudomonas aeruginosa. The current study contributes to the establishment of a release platform for targeted treatment of topical infections with the aim of minimizing both overexposure to drugs and development of bacterial resistance.
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Affiliation(s)
- Marina Craig
- Department of Chemistry and Chemical Engineering, Chalmers University of Technology, SE-41296, Gothenburg, Sweden.
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17
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Burkova YL, Beleneva IA, Shchipunov YA. Bactericidal sodium alginate films containing nanosized silver particles. COLLOID JOURNAL 2015. [DOI: 10.1134/s1061933x15060058] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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18
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Sacco P, Sechi A, Trevisan A, Picotti F, Gianni R, Stucchi L, Fabbian M, Bosco M, Paoletti S, Marsich E. A silver complex of hyaluronan-lipoate (SHLS12): Synthesis, characterization and biological properties. Carbohydr Polym 2015; 136:418-26. [PMID: 26572372 DOI: 10.1016/j.carbpol.2015.09.057] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2015] [Revised: 09/17/2015] [Accepted: 09/18/2015] [Indexed: 12/13/2022]
Abstract
In this study we present a novel silver complex of hyaluronan-lipoate (SHLS12) in a gel-state form. NMR analysis, conductometry and elemental analysis demonstrated stable non-covalent interactions between silver ions and the polysaccharide-lipoate backbone, whereas rheological investigations confirmed its gel-like physical-chemical behavior. Biological studies showed the ability of SHLS12 to exert a straightforward activity against different bacterial strains grown in sessile/planktonic state. The biocompatibility was also proved toward two eukaryotic cell lines. By considering both its ability to preserve antibacterial properties when exposed to the serum protein BSA and its low susceptibility to be degraded by hyaluronidase enzyme, this novel complex may be considered as a promising biomaterial for future in vivo applications.
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Affiliation(s)
- Pasquale Sacco
- Department of Life Sciences, University of Trieste, Via Licio Giorgieri 5, I-34127 Trieste, Italy
| | - Alessandra Sechi
- SIGEA Srl, AREA Science Park, loc. Padriciano 99, I-34149 Trieste, Italy
| | - Antonia Trevisan
- SIGEA Srl, AREA Science Park, loc. Padriciano 99, I-34149 Trieste, Italy
| | - Fabrizio Picotti
- SIGEA Srl, AREA Science Park, loc. Padriciano 99, I-34149 Trieste, Italy
| | - Rita Gianni
- SIGEA Srl, AREA Science Park, loc. Padriciano 99, I-34149 Trieste, Italy
| | - Luca Stucchi
- SIGEA Srl, AREA Science Park, loc. Padriciano 99, I-34149 Trieste, Italy
| | - Matteo Fabbian
- SIGEA Srl, AREA Science Park, loc. Padriciano 99, I-34149 Trieste, Italy
| | - Marco Bosco
- SIGEA Srl, AREA Science Park, loc. Padriciano 99, I-34149 Trieste, Italy
| | - Sergio Paoletti
- Department of Life Sciences, University of Trieste, Via Licio Giorgieri 5, I-34127 Trieste, Italy
| | - Eleonora Marsich
- Department of Medical, Surgical and Health Sciences, University of Trieste, Piazza dell'Ospitale 1, I-34129 Trieste, Italy.
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19
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Abdelhamid HN, Talib A, Wu HF. Facile synthesis of water soluble silver ferrite (AgFeO2) nanoparticles and their biological application as antibacterial agents. RSC Adv 2015. [DOI: 10.1039/c4ra14461a] [Citation(s) in RCA: 67] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
The syntheses and antibacterial activity of AgFeO2 and AgFO2 modified polyethylene glycols are reported.
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Affiliation(s)
- Hani Nasser Abdelhamid
- Department of Chemistry
- National Sun Yat-Sen University
- Kaohsiung 804
- Taiwan
- Department of Chemistry
| | - Abou Talib
- School of Pharmacy
- College of Pharmacy
- Kaohsiung Medical University
- Kaohsiung 807
- Taiwan
| | - Hui-Fen Wu
- Department of Chemistry
- National Sun Yat-Sen University
- Kaohsiung 804
- Taiwan
- School of Pharmacy
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