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Abd-Elsalam KA, Al-Dhabaan FA, Alghuthaymi M, Njobeh PB, Almoammar H. Nanobiofungicides: Present concept and future perspectives in fungal control. NANO-BIOPESTICIDES TODAY AND FUTURE PERSPECTIVES 2019:315-351. [DOI: 10.1016/b978-0-12-815829-6.00014-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/01/2023]
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252
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Rebitski EP, Darder M, Aranda P. Layered double hydroxide/sepiolite hybrid nanoarchitectures for the controlled release of herbicides. BEILSTEIN JOURNAL OF NANOTECHNOLOGY 2019; 10:1679-1690. [PMID: 31467829 PMCID: PMC6693401 DOI: 10.3762/bjnano.10.163] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/14/2019] [Accepted: 07/25/2019] [Indexed: 05/20/2023]
Abstract
In this work, organic-inorganic hybrid nanoarchitectures were prepared in a single coprecipitation step by assembling magnesium-aluminum layered double hydroxides (MgAl-LDH) and a sepiolite fibrous clay, with the simultaneous encapsulation of the herbicide 2-methyl-4-chlorophenoxyacetic acid (MCPA) as the MgAl-LDH retains its ion exchange properties. The synthetic procedure was advantageous in comparison to the incorporation of MCPA by ion exchange after the formation of the LDH/sepiolite nanoarchitecture in a previous step, as it was less time consuming and gave rise to a higher loading of MCPA. The resulting MCPA-LDH/sepiolite nanoarchitectures were characterized by various physicochemical techniques (XRD, FTIR and 29Si NMR spectroscopies, CHN analysis and SEM) that revealed interactions of LDH with the sepiolite fibers through the silanol groups present on the outer surface of sepiolite, together with the intercalation of MCPA in the LDH confirmed by the increase in the basal spacing from 0.77 nm for the pristine LDH to 2.32 nm for the prepared materials. The amount of herbicide incorporated in the hybrid nanoarchitectures prepared by the single-step coprecipitation method surpassed the CEC of LDH (ca. 330 mEq/100 g), with values reaching 445 mEq/100 g LDH for certain compositions. This suggests a synergy between the inorganic solids that allows the nanoarchitecture to exhibit better adsorption properties than the separate components. Additionally, in the release assays, the herbicide incorporated in the hybrid nanoarchitectures could be completely released, which confirms its suitability for agricultural applications. In order to achieve a more controlled release of the herbicide and to act for several days on the surface of the soil, the hybrid nanoarchitectures were encapsulated in a biopolymer matrix of alginate/zein and shaped into spheres. In in vitro tests carried out in bidistilled water, a continuous release of MCPA from the bionanocomposite beads was achieved for more than a week, while the non-encapsulated materials released the 100% of MCPA in 48 h. Besides, the encapsulation may allow for better handling and transport of the herbicide.
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Affiliation(s)
- Ediana Paula Rebitski
- Instituto de Ciencia de Materiales de Madrid, CSIC, c/ Sor Juana Inés de la Cruz 3, Cantoblanco, 28049 Madrid, Spain
| | - Margarita Darder
- Instituto de Ciencia de Materiales de Madrid, CSIC, c/ Sor Juana Inés de la Cruz 3, Cantoblanco, 28049 Madrid, Spain
| | - Pilar Aranda
- Instituto de Ciencia de Materiales de Madrid, CSIC, c/ Sor Juana Inés de la Cruz 3, Cantoblanco, 28049 Madrid, Spain
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253
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254
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Bisset NB, Webster GR, Dong YD, Boyd BJ. Understanding the kinetic mixing between liquid crystalline nanoparticles and agrochemical actives. Colloids Surf B Biointerfaces 2018; 175:324-332. [PMID: 30554010 DOI: 10.1016/j.colsurfb.2018.11.063] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2018] [Revised: 11/21/2018] [Accepted: 11/26/2018] [Indexed: 12/23/2022]
Abstract
The use of liquid crystalline nanoparticles as potential agrochemical delivery agents or adjuvant systems is gaining traction due to the possibility that the systems can enhance penetration of the active and increase adhesion of the formulation to the leaf, increasing overall efficacy and decreasing the harmful environmental impact. However the interaction between liquid crystalline nanoparticles and active products is not well understood. Using small angle X-ray scattering we investigated the structural changes that occur to liquid crystalline nanoparticles upon addition of three common herbicides, 2,4-D 2-ethylhexyl ester, bromoxynil octanoate and haloxyfop-p-methyl ester active agrochemicals in the form of emulsions. It was found that the hydrophobic herbicides induced structural changes to varying degrees when pre-mixed with liquid crystalline forming lipids (phytantriol and glycerol monooleate) and also during dynamic mixing as emulsions.
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Affiliation(s)
- Nicole B Bisset
- Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University (Parkville Campus), 381 Royal Parade Parkville, Victoria, 3052, Australia
| | - Graham R Webster
- Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University (Parkville Campus), 381 Royal Parade Parkville, Victoria, 3052, Australia
| | - Yao Da Dong
- Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University (Parkville Campus), 381 Royal Parade Parkville, Victoria, 3052, Australia
| | - Ben J Boyd
- Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University (Parkville Campus), 381 Royal Parade Parkville, Victoria, 3052, Australia; ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, Monash Institute of Pharmaceutical Sciences, Monash University (Parkville Campus), 381 Royal Parade Parkville, Victoria, 3052, Australia.
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255
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Cao L, Zhang H, Zhou Z, Xu C, Shan Y, Lin Y, Huang Q. Fluorophore-free luminescent double-shelled hollow mesoporous silica nanoparticles as pesticide delivery vehicles. NANOSCALE 2018; 10:20354-20365. [PMID: 30376015 DOI: 10.1039/c8nr04626c] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
Recently, mesoporous silica nanoparticles (MSNs) have become popular nanomaterials in smart delivery systems. Although research progress in the application of MSNs as pesticide carriers has been achieved, multifunctional MSNs endowed with bright luminescent centers facilitating the tracking of MSNs in biological systems and versatile structural properties possessing a high drug loading capacity and regulable release are still highly desirable. In the present work, we reported a fluorophore-free method to endow MSNs with stable fluorescence and a double-shelled hollow structure; they were prepared by a selective-etching strategy and subsequent annealing treatment. The strong and stable luminescence is found to originate from the carbon dots generated from the calcination. Their well-defined morphological structure was confirmed by SEM and TEM imaging. These versatile silica nanoparticles served as a novel delivery system for the pesticide pyraclostrobin with a loading content of 28.5%. The pyraclostrobin-loaded nanoparticles showed an initial burst, followed by subsequent sustained release behavior. The fungicidal activity of pyraclostrobin-loaded silica nanoparticles against the fungus Phomopsis asparagi (Sacc.) as well as their visual observation in the mycelium was explored. Furthermore, the effect of pyraclostrobin-loaded nanoparticles on the morphology and ultrastructure of the mycelium was investigated by SEM and TEM observations. This research seeks to develop a novel nanocarrier platform for the potential application of pesticides in sustainable plant protection.
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Affiliation(s)
- Lidong Cao
- Key Laboratory of Integrated Pest Management in Crops, Ministry of Agriculture, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, No. 2 Yuanmingyuan West Road, Beijing 100193, Haidian District, P. R. China.
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256
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Zheng L, Cao C, Cao L, Chen Z, Huang Q, Song B. Bounce Behavior and Regulation of Pesticide Solution Droplets on Rice Leaf Surfaces. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2018; 66:11560-11568. [PMID: 30351924 DOI: 10.1021/acs.jafc.8b02619] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
Pesticide spray droplets can damage ecological environments and negatively affect biodiversity if they reach nontarget areas. Effective retention of pesticide droplets on plant surfaces is an important challenge. In this study, a high-speed camera was utilized to visualize the bounce behavior of droplets of different pesticide solutions on rice leaf surfaces. We explored the addition of surfactants (SAAs) to different pesticide solutions and altered a pesticide solution system to prevent or regulate droplet bounce behavior. Experimental results indicate that the addition of SAAs to a pesticide solution can inhibit the bouncing of droplets on rice leaf surfaces. Additionally, a water-in-oil (EO) emulsion not only can significantly inhibit droplet rebound on a superhydrophobic surface, but also can quickly and automatically spread pesticide droplets to maximize the wetting area. Therefore, this work effectively improves the utilization of pesticides and reduces environmental pollution.
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Affiliation(s)
- Li Zheng
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Research and Development Center for Fine Chemicals , Guizhou University , Guiyang 550025 , China
| | - Chong Cao
- Key Laboratory of Integrated Pest Management in Crops , Ministry of Agriculture, Institute of Plant Protection, Chinese Academy of Agricultural Sciences , No. 2 Yuanmingyuan West Road , Beijing 100193 , China
| | - Lidong Cao
- Key Laboratory of Integrated Pest Management in Crops , Ministry of Agriculture, Institute of Plant Protection, Chinese Academy of Agricultural Sciences , No. 2 Yuanmingyuan West Road , Beijing 100193 , China
| | - Zhuo Chen
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Research and Development Center for Fine Chemicals , Guizhou University , Guiyang 550025 , China
| | - Qiliang Huang
- Key Laboratory of Integrated Pest Management in Crops , Ministry of Agriculture, Institute of Plant Protection, Chinese Academy of Agricultural Sciences , No. 2 Yuanmingyuan West Road , Beijing 100193 , China
| | - Baoan Song
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Research and Development Center for Fine Chemicals , Guizhou University , Guiyang 550025 , China
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257
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Ahmadi Z, Saber M, Akbari A, Mahdavinia GR. Encapsulation of Satureja hortensis L. (Lamiaceae) in chitosan/TPP nanoparticles with enhanced acaricide activity against Tetranychus urticae Koch (Acari: Tetranychidae). ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2018; 161:111-119. [PMID: 29879571 DOI: 10.1016/j.ecoenv.2018.05.051] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/15/2017] [Revised: 05/15/2018] [Accepted: 05/22/2018] [Indexed: 06/08/2023]
Abstract
The objective of this study was the fabrication of encapsulated Satureja hortensis essential oil (S.EO) in chitosan/tripolyphosphate nanoparticles (CS/TPP-NPs) via ionic gelation technique and investigation of its acaricidal effect. A high encapsulation efficiency of 96.17% was obtained, which shows successful encapsulation of EOs in CS-TPP nanoparticles. Transmission electron microscopy (TEM) analysis proved the formation of spherical S. hortensis EO-loaded chitosan nanoparticles (S.EO@NPs). Fourier-transform infrared spectroscopy (FTIR) analysis demonstrated the presence of encapsulated S.EO in CS/TPP nanoparticles. The average size of nanoparticles was found to be 192.1 ± 11 nm using dynamic light scattering (DLS) technique. Moreover, durability and fumigant acaricide activity of S.EO@NPs against Tetranychus urticae Koch were investigated. The obtained results demonstrated that there were considerable differences between pure S. hortensis EO and S.EO@NPs in their ovicidal, adulticidal, and persistence activities against T. urticae. The LC50 values of pure EO and as-prepared S.EO@NPs against adult mite were 4.95, 46.98 µL/L after 24 h exposure and 2.02, 31.30 µL/L after 72 h exposure, respectively. Fumigation exposure for 24 and 72 h showed that the sensitivity of adults T. urticae were more than the eggs of T. urticae. The LC50 values of fumigant toxicity of pure S.EO and S.EO@NPs against eggs of T. urticae were measured after 24 and 72 h. The experimental results for 24 h treatment showed 6.71 and 211.66 µL/L air LC50 values for pure S.EO and S.EO@NPs, respectively. In the case of 72 h exposure, The LC50 values of pure S.EO and S.EO@NPs were 4.15 and 107.38 µL/L air, respectively. A sustained release of S.EO from S.EO@NPs was observed during 25 days of the study, indicating the persistence acaricide activity for a long time. The as-prepared S.EO@NPs and pure S.EO illustrated 67% and 2% mortality at 18th day exposure, respectively. The notable increasing of the residual fumigant toxicity may be related to the slow and sustainable release of the active ingredient of EO. Based on this study, the S.EO@NPs showed significantly residual adulticidal activity against adults of T. urticae. S.EO@NPs would be recommended as an alternative for pure EOs and other common acaricides.
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Affiliation(s)
- Zeinab Ahmadi
- Department of Plant Protection, College of Agriculture, University of Maragheh, Maragheh, Iran
| | - Moosa Saber
- Department of Plant Protection, Faculty of Agriculture, University of Tabriz, Tabriz, Iran
| | - Ali Akbari
- Polymer Research Laboratory, Department of Chemistry, Faculty of Science, University of Maragheh, Maragheh, Iran
| | - Gholam Reza Mahdavinia
- Polymer Research Laboratory, Department of Chemistry, Faculty of Science, University of Maragheh, Maragheh, Iran.
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258
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Sarfraz M, Afzal A, Yang T, Gai Y, Raza SM, Khan MW, Cheng Y, Ma X, Xiang G. Development of Dual Drug Loaded Nanosized Liposomal Formulation by A Reengineered Ethanolic Injection Method and Its Pre-Clinical Pharmacokinetic Studies. Pharmaceutics 2018; 10:pharmaceutics10030151. [PMID: 30200557 PMCID: PMC6161256 DOI: 10.3390/pharmaceutics10030151] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2018] [Revised: 08/29/2018] [Accepted: 08/31/2018] [Indexed: 12/15/2022] Open
Abstract
Oleanolic acid (OA), which is a natural pentacyclic terpenoid, has been identified for hepato-protective, nephron-protective and cardio-tonic properties. In contrast, doxorubicin (DOX) is a famous anti-cancer drug but its efficacy is a question mark because of its known cardio-toxicity. We developed a combined nanoliposomal formulation of DOX with OA, as adjuvant, to overwhelm toxic effects of DOX without compromising anticancer activity. The entrapment efficiency and the particle size were brought in limit by the reengineered ethanolic injection method (REIM), without further extrusion. The developed formulations were stable over the study period of two months. A modified HPLC method was employed for the analysis of OA (drug retention time, Tr = 12 ± 1 min). The recovery of OA against spiked plasma samples was more than 90%. MTT assay showed anti-apoptotic synergism against HepG2 cells at non-fixed ratio (combination index, CI < 1). A sustained in vivo drug release of experimental drugs was depicted over 24 h. Histopathological examination and laboratory findings indicated no visible sign of toxicity in the treated mice group against combined delivery. Hence, this combined nanoliposomal formulation was tagged as a safer therapy for the DOX based cancer treatments.
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Affiliation(s)
- Muhammad Sarfraz
- School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology (HUST), Wuhan 430030, Hubei, China.
- International Joint Laboratory of Nuclear Protein, Henan University, Kaifeng 475001/475004, Henan, China.
- Faculty of Pharmacy, The University of Lahore (UOL), Lahore 56400, Punjab, Pakistan.
| | - Attia Afzal
- School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology (HUST), Wuhan 430030, Hubei, China.
- International Joint Laboratory of Nuclear Protein, Henan University, Kaifeng 475001/475004, Henan, China.
- Faculty of Pharmacy, The University of Lahore (UOL), Lahore 56400, Punjab, Pakistan.
- Institute of Pharmacy, Lahore College for Women University (LCWU), Lahore 54610, Punjab, Pakistan.
| | - Tan Yang
- School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology (HUST), Wuhan 430030, Hubei, China.
| | - Yongkang Gai
- School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology (HUST), Wuhan 430030, Hubei, China.
| | - Shahid Masood Raza
- School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology (HUST), Wuhan 430030, Hubei, China.
| | - Muhammad Waseem Khan
- School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology (HUST), Wuhan 430030, Hubei, China.
| | - Yao Cheng
- School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology (HUST), Wuhan 430030, Hubei, China.
| | - Xiang Ma
- School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology (HUST), Wuhan 430030, Hubei, China.
| | - Guangya Xiang
- School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology (HUST), Wuhan 430030, Hubei, China.
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259
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Ferguson CTJ, Al-Khalaf AA, Isaac RE, Cayre OJ. pH-responsive polymer microcapsules for targeted delivery of biomaterials to the midgut of Drosophila suzukii. PLoS One 2018; 13:e0201294. [PMID: 30091982 PMCID: PMC6084892 DOI: 10.1371/journal.pone.0201294] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2018] [Accepted: 07/12/2018] [Indexed: 12/13/2022] Open
Abstract
Drosophila suzukii or spotted wing Drosophila is an economically important pest which can have a devastating impact on soft and stone fruit industries. Biological pesticides are being sought as alternatives to synthetic chemicals to control this invasive pest, but many are subject to degradation either in the environment or in the insect gut and as a result require protection. In this study we identified a sharp change in pH of the adult midgut from neutral to acidic (pH <3), which we then exploited to develop poly(2-vinylpyridine) (P2VP) microcapsules that respond to the change in midgut pH by dissolution and release of their cargo for uptake into the insect. First, we used labelled solid poly(methyl methacrylate) (PMMA) particles to show that microcapsules with a diameter less than 15 μm are readily ingested by the adult insect. To encapsulate water-soluble biological species in an aqueous continuous phase, a multiple emulsion template was used as a precursor for the synthesis of pH-responsive P2VP microcapsules with a fluorescent (FITC-dextran) cargo. The water-soluble agent was initially separated from the aqueous continuous phase by an oil barrier, which was subsequently polymerised. The P2VP microcapsules were stable at pH > 6, but underwent rapid dissolution at pH < 4.2. In vivo studies showed that the natural acidity of the midgut of D. suzukii also induced the breakdown of the responsive P2VP microcapsules to release FITC-dextran which was taken up into the body of the insect and accumulated in the renal tubules.
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Affiliation(s)
- Calum T. J. Ferguson
- School of Biological Sciences, University of Leeds, Leeds, United Kingdom
- School of Chemical and Process Engineering, University of Leeds, Leeds, United Kingdom
| | - Areej A. Al-Khalaf
- College of Science, Princess Nourah bint Abdulrahman University, Riyadh, Saudi Arabia
| | - R. Elwyn Isaac
- School of Biological Sciences, University of Leeds, Leeds, United Kingdom
| | - Olivier J. Cayre
- School of Chemical and Process Engineering, University of Leeds, Leeds, United Kingdom
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260
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Hafez IH, Osman AR, Sewedan EA, Berber MR. Tailoring of a Potential Nanoformulated Form of Gibberellic Acid: Synthesis, Characterization, and Field Applications on Vegetation and Flowering. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2018; 66:8237-8245. [PMID: 30028615 DOI: 10.1021/acs.jafc.8b02761] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Nanoformulation of agrochemicals has become a potential choice to improve the physicochemical properties, enhance the utilization efficiency, and reduce the side effects and ecotoxicity of many hazardous chemicals. Here, we tailored a new formulation platform for gibberellic acid (GA) using the layered double hydroxides (LDH) as a potential carrier. Typically, we synthesized, characterized, and potentially applied the newly nanoformulated form of GA on the quantity and quality properties of Dendranthema grandiflorum cultivar. We also evaluated the synergetic effect of the carrier LDH on the release behavior of GA, showing a remarkable impact on the utilization efficiency of GA. The nanohybrid structure of GA also showed an enhanced thermal stability and safe preservation for the incorporated moieties. Taking into account the hazardous effect of free GA on the environment and human health, the hybrid technique of GA is one of the best choices among all of the studied protocols.
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Affiliation(s)
| | | | | | - Mohamed R Berber
- Department of Chemistry, Faculty of Science , Tanta University , Tanta 31527 , Egypt
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261
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262
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Sekhar KPC, Adicherla H, Nayak RR. Impact of Glycolipid Hydrophobic Chain Length and Headgroup Size on Self-Assembly and Hydrophobic Guest Release. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2018; 34:8875-8886. [PMID: 29983075 DOI: 10.1021/acs.langmuir.8b01401] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Encapsulation of a hydrophobic guest molecule inside a micelle and its stimuli-sensitive release is a useful strategy for target-specific drug delivery. Herein, nine biobased glycolipids were derived from plant sources. The influence of headgroup on the stability and aggregation pattern in water with different alkyl chain lengths was investigated to deduce the structure-property relationship. External factors, such as temperature, pH, and NaCl and urea concentrations, were employed to explore stimuli response of glycolipid nanoassemblies. Furthermore, solvatochromic dyes, such as pyrene, N-phenyl-1-naphthylamine, and curcumin, were utilized to examine hydrophobe loading capacities of these glycolipid assemblies. A fluorescence study was performed to investigate the enzyme-sensitive hydrophobe release. Interestingly, the pH-sensitive hydrophobic guests showed pH-responsive release from dynamic micelles. Finally, the synthesized glycolipids revealed their nanoassemblies as smart carriers for hydrophobic cargo.
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Affiliation(s)
- Kanaparedu P C Sekhar
- Centre for Lipid Science and Technology , CSIR-Indian Institute of Chemical Technology , Hyderabad 500007 , India
- Academy of Scientific and Innovative Research (AcSIR) , New Delhi 110001 , India
| | - Harikrishna Adicherla
- CSIR-Centre for Cellular and Molecular Biology , Uppal Road , Hyderabad 500007 , India
| | - Rati Ranjan Nayak
- Centre for Lipid Science and Technology , CSIR-Indian Institute of Chemical Technology , Hyderabad 500007 , India
- Academy of Scientific and Innovative Research (AcSIR) , New Delhi 110001 , India
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263
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Liang J, Yu M, Guo L, Cui B, Zhao X, Sun C, Wang Y, Liu G, Cui H, Zeng Z. Bioinspired Development of P(St-MAA)-Avermectin Nanoparticles with High Affinity for Foliage To Enhance Folia Retention. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2018; 66:6578-6584. [PMID: 28727420 DOI: 10.1021/acs.jafc.7b01998] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/15/2023]
Abstract
Pesticides are chemical or biological substances to control pests and protect the crop yield. Most pesticides suffering from large amounts of losses in the environment lead to damage of ecological systems and food pollution. To reduce their losses and increase the utilization rate, we have developed bioinspired mussel avermectin nanoparticles [P(St-MAA)-Av-Cat] with strong adhesion to crop foliage by the emulsion-solvent evaporation method and chemical modification. They were near spheres with a diameter of around 120 nm. They displayed remarkable high avermectin content of more than 50% (w/w) and presented excellent storage stability as well as continuous sustained release. The photosensitive avermectins loaded were highly improved against ultraviolet light. Meanwhile, the retention rate of P(St-MAA)-Av-Cat on the crop foliage surfaces was significantly increased. As a result, the indoor toxicity of P(St-MAA)-Av-Cat was highly enhanced. The adhesive property strongly depended upon the functional groups on the nanoparticle surface. The multimodal binding mode of P(St-MAA)-Av-Cat to the crop foliage surface resulted in stronger adhesion and a longer retention time.
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Affiliation(s)
- Jie Liang
- Institute of Environment and Sustainable Development in Agriculture , Chinese Academy of Agricultural Sciences , Beijing 100081 , People's Republic of China
| | - Manli Yu
- Institute of Environment and Sustainable Development in Agriculture , Chinese Academy of Agricultural Sciences , Beijing 100081 , People's Republic of China
| | - Liya Guo
- Institute of Environment and Sustainable Development in Agriculture , Chinese Academy of Agricultural Sciences , Beijing 100081 , People's Republic of China
| | - Bo Cui
- Institute of Environment and Sustainable Development in Agriculture , Chinese Academy of Agricultural Sciences , Beijing 100081 , People's Republic of China
| | - Xiang Zhao
- Institute of Environment and Sustainable Development in Agriculture , Chinese Academy of Agricultural Sciences , Beijing 100081 , People's Republic of China
| | - Changjiao Sun
- Institute of Environment and Sustainable Development in Agriculture , Chinese Academy of Agricultural Sciences , Beijing 100081 , People's Republic of China
| | - Yan Wang
- Institute of Environment and Sustainable Development in Agriculture , Chinese Academy of Agricultural Sciences , Beijing 100081 , People's Republic of China
| | - Guoqiang Liu
- Institute of Environment and Sustainable Development in Agriculture , Chinese Academy of Agricultural Sciences , Beijing 100081 , People's Republic of China
| | - Haixin Cui
- Institute of Environment and Sustainable Development in Agriculture , Chinese Academy of Agricultural Sciences , Beijing 100081 , People's Republic of China
| | - Zhanghua Zeng
- Institute of Environment and Sustainable Development in Agriculture , Chinese Academy of Agricultural Sciences , Beijing 100081 , People's Republic of China
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264
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Cao L, Zhou Z, Niu S, Cao C, Li X, Shan Y, Huang Q. Positive-Charge Functionalized Mesoporous Silica Nanoparticles as Nanocarriers for Controlled 2,4-Dichlorophenoxy Acetic Acid Sodium Salt Release. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2018; 66:6594-6603. [PMID: 28640597 DOI: 10.1021/acs.jafc.7b01957] [Citation(s) in RCA: 61] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
Because of its relatively high water solubility and mobility, 2,4-dichlorophenoxy acetic acid (2,4-D) has a high leaching potential threatening the surface water and groundwater. Controlled release formulations of 2,4-D could alleviate the adverse effects on the environment. In the present study, positive-charge functionalized mesoporous silica nanoparticles (MSNs) were facilely synthesized by incorporating trimethylammonium (TA) groups onto MSNs via a postgrafting method. 2,4-D sodium salt, the anionic form of 2,4-D, was effectively loaded into these positively charged MSN-TA nanoparticles. The loading content can be greatly improved to 21.7% compared to using bare MSNs as a single encapsulant (1.5%). Pesticide loading and release patterns were pH, ionic strength and temperature responsive, which were mainly dominated by the electrostatic interactions. Soil column experiments clearly demonstrated that MSN-TA can decrease the soil leaching of 2, 4-D sodium salt. Moreover, this novel nanoformulation showed good bioactivity on target plant without adverse effects on the growth of nontarget plant. This strategy based on electrostatic interactions could be widely applied to charge carrying agrochemicals using carriers bearing opposite charges to alleviate the potential adverse effects on the environment.
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Affiliation(s)
- Lidong Cao
- Key Laboratory of Integrated Pest Management in Crops, Ministry of Agriculture, Institute of Plant Protection , Chinese Academy of Agricultural Sciences , No. 2 Yuanmingyuan West Road , Haidian District, Beijing 100193 , P. R. China
| | - Zhaolu Zhou
- Key Laboratory of Integrated Pest Management in Crops, Ministry of Agriculture, Institute of Plant Protection , Chinese Academy of Agricultural Sciences , No. 2 Yuanmingyuan West Road , Haidian District, Beijing 100193 , P. R. China
| | - Shujun Niu
- Institute of Plant Protection , Gansu Academy of Agricultural Sciences , No. 1 Nongkeyuan New Village , An'ning District, Lanzhou 730070 , P. R. China
| | - Chong Cao
- Key Laboratory of Integrated Pest Management in Crops, Ministry of Agriculture, Institute of Plant Protection , Chinese Academy of Agricultural Sciences , No. 2 Yuanmingyuan West Road , Haidian District, Beijing 100193 , P. R. China
| | - Xiuhuan Li
- Key Laboratory of Integrated Pest Management in Crops, Ministry of Agriculture, Institute of Plant Protection , Chinese Academy of Agricultural Sciences , No. 2 Yuanmingyuan West Road , Haidian District, Beijing 100193 , P. R. China
| | - Yongpan Shan
- Key Laboratory of Integrated Pest Management in Crops, Ministry of Agriculture, Institute of Plant Protection , Chinese Academy of Agricultural Sciences , No. 2 Yuanmingyuan West Road , Haidian District, Beijing 100193 , P. R. China
| | - Qiliang Huang
- Key Laboratory of Integrated Pest Management in Crops, Ministry of Agriculture, Institute of Plant Protection , Chinese Academy of Agricultural Sciences , No. 2 Yuanmingyuan West Road , Haidian District, Beijing 100193 , P. R. China
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265
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Zhao X, Cui H, Wang Y, Sun C, Cui B, Zeng Z. Development Strategies and Prospects of Nano-based Smart Pesticide Formulation. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2018; 66:6504-6512. [PMID: 28654254 DOI: 10.1021/acs.jafc.7b02004] [Citation(s) in RCA: 258] [Impact Index Per Article: 43.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
Pesticides are important inputs for enhancing crop productivity and preventing major biological disasters. However, more than 90% of pesticides run off into the environment and reside in agricultural products in the process of application as a result of the disadvantages of conventional pesticide formulation, such as the use of a harmful solvent, poor dispersion, dust drift, etc. In recent years, using nanotechnology to create novel formulations has shown great potential in improving the efficacy and safety of pesticides. The development of nano-based pesticide formulation aims at precise release of necessary and sufficient amounts of their active ingredients in responding to environmental triggers and biological demands through controlled release mechanisms. This paper discusses several scientific issues and strategies regarding the development of nano-based pesticide formulations: (i) construction of water-based dispersion pesticide nanoformulation, (ii) mechanism on leaf-targeted deposition and dose transfer of pesticide nanodelivery system, (iii) mechanism on increased bioavailability of nano-based pesticide formulation, and (iv) impacts of nanoformulation on natural degradation and biosafety of pesticide residues.
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266
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Zhang H, Qin H, Li L, Zhou X, Wang W, Kan C. Preparation and Characterization of Controlled-Release Avermectin/Castor Oil-Based Polyurethane Nanoemulsions. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2018; 66:6552-6560. [PMID: 28562041 DOI: 10.1021/acs.jafc.7b01401] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Avermectin (AVM) is a low-toxic and high-active biopesticide, but it can be easily degraded by UV light. In this paper, biodegradable castor oil-based polyurethanes (CO-PU) are synthesized and used as carriers to fabricate a new kind of AVM/CO-PU nanoemulsion through an emulsion solvent evaporation method, and the chemical structure, colloidal property, AVM loading capacity, controlled-release behavior, foliar adhesion, and photostability of the AVM/CO-PU drug delivery systems are investigated. Results show that AVM is physically encapsulated in the CO-PU carrier nanospheres, the diameter of the AVM/CO-PU nanoparticles is <50 nm, and the AVM/CO-PU films are flat and smooth without any AVM aggregate. The drug loading capacity is up to 42.3 wt % with a high encapsulation efficiency of >85%. The release profiles indicate that the release rate is relatively high at the early stage and then slows, which can be adjusted by loaded AVM content, temperature, and pH of the release medium. The foliar pesticide retention of the AVM/CO-PU nanoemulsions is improved, and the photolysis rate of AVM in the AVM/CO-PU nanoparticles is significantly slower than that of the free AVM. A release mechanism of the AVM/CO-PU nanoemulsions is proposed, which is controlled by both diffusion and matrix erosion.
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Affiliation(s)
- Hong Zhang
- Department of Chemical Engineering and Key Laboratory of Advanced Materials of Ministry of Education , Tsinghua University , Beijing 100084 , People's Republic of China
| | - He Qin
- Department of Chemical Engineering and Key Laboratory of Advanced Materials of Ministry of Education , Tsinghua University , Beijing 100084 , People's Republic of China
| | - Lingxiao Li
- Department of Chemical Engineering and Key Laboratory of Advanced Materials of Ministry of Education , Tsinghua University , Beijing 100084 , People's Republic of China
| | - Xiaoteng Zhou
- Department of Chemical Engineering and Key Laboratory of Advanced Materials of Ministry of Education , Tsinghua University , Beijing 100084 , People's Republic of China
| | - Wei Wang
- Department of Chemical Engineering and Key Laboratory of Advanced Materials of Ministry of Education , Tsinghua University , Beijing 100084 , People's Republic of China
| | - Chengyou Kan
- Department of Chemical Engineering and Key Laboratory of Advanced Materials of Ministry of Education , Tsinghua University , Beijing 100084 , People's Republic of China
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267
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Zou A, Yang Y, Cheng J, Garamus VM, Li N. Construction and Characterization of a Novel Sustained-Release Delivery System for Hydrophobic Pesticides Using Biodegradable Polydopamine-Based Microcapsules. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2018; 66:6262-6268. [PMID: 29847115 DOI: 10.1021/acs.jafc.8b00877] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Microcapsule formulations have been highly desirable and widely developed for effective utilization of pesticides and environmental pollution reduction. However, commercial and traditional microcapsule formulations of λ-cyhalothrin (LC) were prepared by complicated synthesis procedures and thereby specific organic solvents were needed. In this work, LC was encapsulated into versatile, robust, and biodegradable polydopamine (PDA) microcapsules by self-polymerization of dopamine. LC-loaded PDA microcapsules were characterized by transmission electron microscopy (TEM), small-angle X-ray scattering (SAXS), and thermogravimetric analysis measurements (TGA). LC-loaded PDA microcapsules have uniform morphology with nanoscale, decent LC loading content (>50.0% w/w), and good physicochemical stability and sustained release properties. The bioassay against housefly ( Musca domestica) showed that the bioactivity and long-term efficiency of LC-loaded PDA microcapsules was superior to that of the commercial formulation. All of these results demonstrated that LC-loaded PDA microcapsules could be applied as a commercial LC microcapsule formulation with fewer environmental side effects and higher effective delivery.
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Affiliation(s)
- Aihua Zou
- State Key Laboratory of Bioreactor Engineering and Institute of Applied Chemistry, Shanghai Key Laboratory of Functional Materials Chemistry, School of Chemistry and Molecular Engineering , East China University of Science and Technology , Shanghai 200237 , People's Republic of China
| | - Ying Yang
- State Key Laboratory of Bioreactor Engineering and Institute of Applied Chemistry, Shanghai Key Laboratory of Functional Materials Chemistry, School of Chemistry and Molecular Engineering , East China University of Science and Technology , Shanghai 200237 , People's Republic of China
| | - Jiagao Cheng
- School of Pharmacy , East China University of Science and Technology , Shanghai 200237 , People's Republic of China
| | - Vasil M Garamus
- Helmholtz-Zentrum Geesthacht, Centre for Materials and Coastal Research , D-21502 Geesthacht , Germany
| | - Na Li
- National Center for Protein Science Shanghai and Shanghai Institute of Biochemistry and Cell Biology , Shanghai 201210 , People's Republic of China
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268
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Mattos BD, Greca LG, Tardy BL, Magalhães WLE, Rojas OJ. Green Formation of Robust Supraparticles for Cargo Protection and Hazards Control in Natural Environments. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2018; 14:e1801256. [PMID: 29882301 DOI: 10.1002/smll.201801256] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/01/2018] [Revised: 04/28/2018] [Indexed: 05/21/2023]
Abstract
In parallel with important technological advances, nanoparticles have brought numerous environmental and toxicological challenges due to their high mobility and nonspecific surface activity. The hazards associated with nanoparticles can be significantly reduced while simultaneously keeping their inherent benefits by superstructuring. In this study, a low-temperature and versatile methodology is employed to structure nanoparticles into controlled morphologies from biogenic silica, used as a main building block, together with cellulose nanofibrils, which promote cohesion. The resultant superstructures are evaluated for cargo loading/unloading of a model, green biomolecule (thymol), and for photo-accessibility and mobility in soil. The bio-based superstructures resist extremely high mechanical loading without catastrophic failure, even after severe chemical and heat treatments. Additionally, the process allows pre and in situ loading, and reutilization, achieving remarkable dynamic payloads as high as 90 mg g-1 . The proposed new and facile methodology is expected to offer a wide range of opportunities for the application of superstructures in sensitive and natural environments.
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Affiliation(s)
- Bruno D Mattos
- Department of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University, FI-00076, Finland
| | - Luiz G Greca
- Department of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University, FI-00076, Finland
| | - Blaise L Tardy
- Department of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University, FI-00076, Finland
| | | | - Orlando J Rojas
- Department of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University, FI-00076, Finland
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269
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Asgari-Targhi G, Iranbakhsh A, Ardebili ZO. Potential benefits and phytotoxicity of bulk and nano-chitosan on the growth, morphogenesis, physiology, and micropropagation of Capsicum annuum. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2018; 127:393-402. [PMID: 29677682 DOI: 10.1016/j.plaphy.2018.04.013] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/27/2017] [Revised: 04/11/2018] [Accepted: 04/11/2018] [Indexed: 05/24/2023]
Abstract
Concerning environmental issues of metal based-nanomaterials and increasing demand for nano-based products; various strategies have been employed to find eco-friendly natural nano-compounds, among which nano-polymer chitosan is mostly considered. Herein, the various aspects of the way in which bulk or nano-chitosan may modify growth, morphogenesis, micropropagation, and physiology of Capsicum annuum L. were considered. Culture medium was manipulated with different concentrations of bulk chitosan or synthesized chitosan/tripolyphosphate (TPP) nano-particle. The supplementations of culture media led to changes in morphology (especially, the root architecture) and differentiation. Toxic doses of bulk (100 mgL-1) or nano-chitosan (5, 10, and 20 mgL-1) dramatically provoked cessation of plant growth and development. Plant growth and biomass accumulations were increased along with the suitable levels of bulk or nano-chitosan. Peroxidase and catalase activities in a dose and organ-dependent manners were significantly modified by the supplements. Phenylalanine ammonia lyase was induced by the mentioned supplements. Also, the contents of soluble phenols, proline, and alkaloid were found to be significantly increased by the elicitors, over the control. The nano-chitosan of 1 mgL-1 was found to be the most effective elicitor to trigger organogenesis via micropropagation. The huge differences between triggering and toxic concentrations of the supplements would be due to the physicochemical modifications of nano-polymeric. Furthermore, the results highlight the potential benefits (hormone-like activity) and phytotoxic impacts of nano-chitosan/TPP for in vitro manipulations. This is the first report on both the favorable and adverse effects of nano-chitosan/TPP, representing requirements for further investigation on such formulations for future applications.
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Affiliation(s)
- Ghasem Asgari-Targhi
- Department of Biology, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Alireza Iranbakhsh
- Department of Biology, Science and Research Branch, Islamic Azad University, Tehran, Iran.
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270
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Kumar S, Sarita, Nehra M, Dilbaghi N, Tankeshwar K, Kim KH. Recent advances and remaining challenges for polymeric nanocomposites in healthcare applications. Prog Polym Sci 2018. [DOI: 10.1016/j.progpolymsci.2018.03.001] [Citation(s) in RCA: 108] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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271
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Feng J, Yang G, Zhang S, Liu Q, Jafari SM, McClements DJ. Fabrication and characterization of β-cypermethrin-loaded PLA microcapsules prepared by emulsion-solvent evaporation: loading and release properties. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2018; 25:13525-13535. [PMID: 29492820 DOI: 10.1007/s11356-018-1557-6] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/09/2017] [Accepted: 02/13/2018] [Indexed: 06/08/2023]
Abstract
Microcapsulses can be designed to effectively encapsulate, protect, and control the release of pesticides. In this study, emulsion-solvent evaporation method was used to fabricate microcapsules using dichloromethane as the solvent, polylactic acid (PLA) as the carrier materials, poly(vinyl alcohol) as the emulsifier, and β-cypermethrin as the entrapped pesticide. The effects of process parameters on the microcapsules characteristics (size, loading content, and encapsulation efficiency) were investigated. Also, the release behavior of the β-cypermethrin was measured experimentally and modeled mathematically. Kinetic analysis indicated that release mechanism of β-cypermethrin was compatible to Fickian diffusion. By optimizing the process parameters, β-cypermethrin-loaded microcapsules were successfully produced with spherical shape, smooth surface, high encapsulation efficiency (> 80%), and a range of pesticide contents. These parameters could be adjusted to achieve delivery systems with desirable release profiles. The results are beneficial to develop delivery systems for rational and effective usage of pesticides.
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Affiliation(s)
- Jianguo Feng
- School of Horticulture and Plant Protection, Yangzhou University, Yangzhou, 225009, China.
| | - Guantian Yang
- School of Horticulture and Plant Protection, Yangzhou University, Yangzhou, 225009, China
| | - Shengwei Zhang
- School of Horticulture and Plant Protection, Yangzhou University, Yangzhou, 225009, China
| | - Qi Liu
- School of Medicine, Yangzhou University, Yangzhou, China
| | - Seid Mahdi Jafari
- Department of Food Materials and Process Design Engineering, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, Iran.
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272
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Controlled biocide release from hierarchically-structured biogenic silica: surface chemistry to tune release rate and responsiveness. Sci Rep 2018; 8:5555. [PMID: 29615806 PMCID: PMC5883024 DOI: 10.1038/s41598-018-23921-2] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2017] [Accepted: 03/14/2018] [Indexed: 12/26/2022] Open
Abstract
Biocides are essential for crop protection, packaging and several other biosystem applications. Therein, properties such as tailored and controlled release are paramount in the development of sustainable biocide delivery systems. We explore the self-similar nano-organized architecture of biogenic silica particles to achieve high biocide payload. The high surface area accessibility of the carrier allowed us to develop an efficient, low energy loading strategy, reaching significant dynamic loadings of up to 100 mg·g−1. The release rate and responsiveness were tuned by manipulating the interfaces, using either the native hydroxyl surfaces of the carrier or systems modified with amines or carboxylic acids in high density. We thoroughly evaluated the impact of the carrier-biocide interactions on the release rate as a function of pH, ionic strength and temperature. The amine and carboxyl functionalization strategy led to three-fold decrease in the release rate, while higher responsiveness against important agro-industrial variables. Key to our discoveries, nanostructuring thymol in the biogenic silica endowed systems with controlled, responsive release promoting remarkable, high and localized biocidal activity. The interfacial factors affecting related delivery were elucidated for an increased and localized biocidal activity, bringing a new light for the development of controlled release systems from porous materials.
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273
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Guo Y, Di Mare L, Li RKY, Wong JSS. Cargo Release from Polymeric Vesicles under Shear. Polymers (Basel) 2018; 10:E336. [PMID: 30966371 PMCID: PMC6414962 DOI: 10.3390/polym10030336] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2018] [Revised: 03/10/2018] [Accepted: 03/16/2018] [Indexed: 12/20/2022] Open
Abstract
In this paper we study the release of cargo from polymeric nano-carriers under shear. Vesicles formed by two star block polymers- A 12 B 6 C 2 ( A B C ) and A 12 B 6 A 2 ( A B A )-and one linear block copolymer- A 14 B 6 ( A B ), are investigated using dissipative particle dynamics (DPD) simulations. A - and C -blocks are solvophobic and B -block is solvophilic. The three polymers form vesicles of different structures. The vesicles are subjected to shear both in bulk and between solvophobic walls. In bulk shear, the mechanisms of cargo release are similar for all vesicles, with cargo travelling through vesicle membrane with no preferential release location. When sheared between walls, high cargo release rate is only observed with A B C vesicle after it touches the wall. For A B C vesicle, the critical condition for high cargo release rate is the formation of wall-polymersome interface after which the effect of shear rate in promoting cargo release is secondary. High release rate is achieved by the formation of solvophilic pathway allowing cargo to travel from the vesicle cavity to the vesicle exterior. The results in this paper show that well controlled target cargo release using polymersomes can be achieved with polymers of suitable design and can potentially be very useful for engineering applications. As an example, polymersomes can be used as carriers for surface active friction reducing additives which are only released at rubbing surfaces where the additives are needed most.
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Affiliation(s)
- Yingying Guo
- Department of Mechanical Engineering, Imperial College London, London SW 7 2AZ, UK.
| | - Luca Di Mare
- Department of Engineering Science, University of Oxford, Oxford Thermofluids Institute, Oxford OX2 0ES, UK.
| | - Robert K Y Li
- Department of Materials Science and Engineering, City University of Hong Kong, Tat Chee Ave, Kowloon Tong, Hong Kong, China.
| | - Janet S S Wong
- Department of Mechanical Engineering, Imperial College London, London SW 7 2AZ, UK.
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274
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Synthesis and Characterization of Stimuli-Responsive Poly(2-dimethylamino-ethylmethacrylate)-Grafted Chitosan Microcapsule for Controlled Pyraclostrobin Release. Int J Mol Sci 2018. [PMID: 29538323 PMCID: PMC5877715 DOI: 10.3390/ijms19030854] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
Controllable pesticide release in response to environmental stimuli is highly desirable for better efficacy and fewer adverse effects. Combining the merits of natural and synthetic polymers, pH and temperature dual-responsive chitosan copolymer (CS-g-PDMAEMA) was facilely prepared through free radical graft copolymerization with 2-(dimethylamino) ethyl 2-methacrylate (DMAEMA) as the vinyl monomer. An emulsion chemical cross-linking method was used to expediently fabricate pyraclostrobin microcapsules in situ entrapping the pesticide. The loading content and encapsulation efficiency were 18.79% and 64.51%, respectively. The pyraclostrobin-loaded microcapsules showed pH-and thermo responsive release. Microcapsulation can address the inherent limitation of pyraclostrobin that is photo unstable and highly toxic on aquatic organisms. Compared to free pyraclostrobin, microcapsulation could dramatically improve its photostability under ultraviolet light irradiation. Lower acute toxicity against zebra fish on the first day and gradually similar toxicity over time with that of pyraclostrobin technical concentrate were in accordance with the release profiles of pyraclostrobin microcapsules. This stimuli-responsive pesticide delivery system may find promising application potential in sustainable plant protection.
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275
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Yang Y, Cheng J, Garamus VM, Li N, Zou A. Preparation of an Environmentally Friendly Formulation of the Insecticide Nicotine Hydrochloride through Encapsulation in Chitosan/Tripolyphosphate Nanoparticles. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2018; 66:1067-1074. [PMID: 29301083 DOI: 10.1021/acs.jafc.7b04147] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Insecticide nicotine hydrochloride (NCT) was formulated as nanoparticles composed of chitosan (CS) and sodium tripolyphosphate (TPP) to undermine its adverse impacts on human health and reinforce its physicochemical stability. The study investigated the preparation and characterization of chitosan/tripolyphosphate nanoparticles (CS/TPP NPs) with good encapsulation efficiency (55%), uniform morphology, and physicochemical stability (45 days) through dynamic light scattering (DLS), transmission electron microscopy (TEM), and small-angle X-ray scattering (SAXS) measurements. A bioassay against Musca domestica NCT CS/TPP NPs exhibited good bioactivity and thermal stability. The effect of the monovalent salt (NaCl) on manipulating the formation and size distribution of ionically cross-linked nanoparticles was demonstrated as well. The formulation of NCT CS/TPP NPs could be a utility candidate in public health and agriculture.
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Affiliation(s)
| | | | - Vasil M Garamus
- Helmholtz-Zentrum Geesthacht , Centre for Materials and Coastal Research, D-21502 Geesthacht, Germany
| | - Na Li
- National Center for Protein Science Shanghai, Shanghai Institute of Biochemistry and Cell Biology , Shanghai 200237, People's Republic of China
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276
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Kim DY, Kadam A, Shinde S, Saratale RG, Patra J, Ghodake G. Recent developments in nanotechnology transforming the agricultural sector: a transition replete with opportunities. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2018; 98:849-864. [PMID: 29065236 DOI: 10.1002/jsfa.8749] [Citation(s) in RCA: 71] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2017] [Revised: 10/12/2017] [Accepted: 10/16/2017] [Indexed: 05/23/2023]
Abstract
The applications and benefits of nanotechnology in the agricultural sector have attracted considerable attention, particularly in the invention of unique nanopesticides and nanofertilisers. The contemporary developments in nanotechnology are acknowledged and the most significant opportunities awaiting the agriculture sector from the recent scientific and technical literature are addressed. This review discusses the significance of recent trends in nanomaterial-based sensors available for the sustainable management of agricultural soil, as well as the role of nanotechnology in detection and protection against plant pathogens, and for food quality and safety. Novel nanosensors have been reported for primary applications in improving crop practices, food quality, and packaging methods, thus will change the agricultural sector for potentially better and healthier food products. Nanotechnology is well-known to play a significant role in the effective management of phytopathogens, nutrient utilisation, controlled release of pesticides, and fertilisers. Research and scientific gaps to be overcome and fundamental questions have been addressed to fuel active development and application of nanotechnology. Together, nanoscience, nanoengineering, and nanotechnology offer a plethora of opportunities, proving a viable alternative in the agriculture and food processing sector, by providing a novel and advanced solutions. © 2017 Society of Chemical Industry.
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Affiliation(s)
- Dae-Young Kim
- Department of Biological and Environmental Science, College of Life Science and Biotechnology, Dongguk University-Seoul, Gyeonggi-do, Republic of Korea
| | - Avinash Kadam
- Research Institute of Biotechnology and Medical Converged Science, Dongguk University-Seoul, Gyeonggi-do, Republic of Korea
| | - Surendra Shinde
- Department of Biological and Environmental Science, College of Life Science and Biotechnology, Dongguk University-Seoul, Gyeonggi-do, Republic of Korea
| | - Rijuta Ganesh Saratale
- Research Institute of Biotechnology and Medical Converged Science, Dongguk University-Seoul, Gyeonggi-do, Republic of Korea
| | - Jayanta Patra
- Research Institute of Biotechnology and Medical Converged Science, Dongguk University-Seoul, Gyeonggi-do, Republic of Korea
| | - Gajanan Ghodake
- Department of Biological and Environmental Science, College of Life Science and Biotechnology, Dongguk University-Seoul, Gyeonggi-do, Republic of Korea
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277
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Wang A, Wang Y, Sun C, Wang C, Cui B, Zhao X, Zeng Z, Yao J, Yang D, Liu G, Cui H. Fabrication, Characterization, and Biological Activity of Avermectin Nano-delivery Systems with Different Particle Sizes. NANOSCALE RESEARCH LETTERS 2018; 13:2. [PMID: 29318395 PMCID: PMC5760487 DOI: 10.1186/s11671-017-2405-1] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/19/2017] [Accepted: 12/06/2017] [Indexed: 05/18/2023]
Abstract
Nano-delivery systems for the active ingredients of pesticides can improve the utilization rates of pesticides and prolong their control effects. This is due to the nanocarrier envelope and controlled release function. However, particles containing active ingredients in controlled release pesticide formulations are generally large and have wide size distributions. There have been limited studies about the effect of particle size on the controlled release properties and biological activities of pesticide delivery systems. In the current study, avermectin (Av) nano-delivery systems were constructed with different particle sizes and their performances were evaluated. The Av release rate in the nano-delivery system could be effectively controlled by changing the particle size. The biological activity increased with decreasing particle size. These results suggest that Av nano-delivery systems can significantly improve the controllable release, photostability, and biological activity, which will improve efficiency and reduce pesticide residues.
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Affiliation(s)
- Anqi Wang
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing, People's Republic of China
- Nanobiotechnology Research Center, Chinese Academy of Agricultural Sciences, Beijing, People's Republic of China
| | - Yan Wang
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing, People's Republic of China.
- Nanobiotechnology Research Center, Chinese Academy of Agricultural Sciences, Beijing, People's Republic of China.
| | - Changjiao Sun
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing, People's Republic of China
- Nanobiotechnology Research Center, Chinese Academy of Agricultural Sciences, Beijing, People's Republic of China
| | - Chunxin Wang
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing, People's Republic of China
- Nanobiotechnology Research Center, Chinese Academy of Agricultural Sciences, Beijing, People's Republic of China
| | - Bo Cui
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing, People's Republic of China
- Nanobiotechnology Research Center, Chinese Academy of Agricultural Sciences, Beijing, People's Republic of China
| | - Xiang Zhao
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing, People's Republic of China
- Nanobiotechnology Research Center, Chinese Academy of Agricultural Sciences, Beijing, People's Republic of China
| | - Zhanghua Zeng
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing, People's Republic of China
- Nanobiotechnology Research Center, Chinese Academy of Agricultural Sciences, Beijing, People's Republic of China
| | - Junwei Yao
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing, People's Republic of China
- Nanobiotechnology Research Center, Chinese Academy of Agricultural Sciences, Beijing, People's Republic of China
| | - Dongsheng Yang
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing, People's Republic of China
- Nanobiotechnology Research Center, Chinese Academy of Agricultural Sciences, Beijing, People's Republic of China
| | - Guoqiang Liu
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing, People's Republic of China
- Nanobiotechnology Research Center, Chinese Academy of Agricultural Sciences, Beijing, People's Republic of China
| | - Haixin Cui
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing, People's Republic of China.
- Nanobiotechnology Research Center, Chinese Academy of Agricultural Sciences, Beijing, People's Republic of China.
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278
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Jampílek J, Kráľová K. Benefits and Potential Risks of Nanotechnology Applications in Crop Protection. NANOTECHNOLOGY IN THE LIFE SCIENCES 2018. [DOI: 10.1007/978-3-319-91161-8_8] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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279
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Zhong B, Wang S, Dong H, Luo Y, Jia Z, Zhou X, Chen M, Xie D, Jia D. Halloysite Tubes as Nanocontainers for Herbicide and Its Controlled Release in Biodegradable Poly(vinyl alcohol)/Starch Film. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2017; 65:10445-10451. [PMID: 29131614 DOI: 10.1021/acs.jafc.7b04220] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
Commercial herbicide atrazine (AT) was first loaded into the lumen of halloysite nanotubes (HNTs) in the amount of 9 wt %, and then the AT-loaded HNTs (HNTs-AT) were further incorporated into poly(vinyl alcohol)/starch composites (PVA/ST, with the weight ratio of 80/20) to construct a dual drug delivery system. AT loaded in nanotubes displayed much slower release from PVA/ST film in water than free AT; for example, the total release amount of AT from PVA/ST film with loaded AT was only 61% after 96 h, while this value reached 97% in PVA/ST film with free AT. The release behavior of AT from PVA/ST film with HNTs-AT was first dominated by the mechanism of matrix erosion and then by the mechanism of Fickian diffusion. In addition, combining HNTs and PVA/ST blends together in the controlled release of herbicide also reduced its leaching through the soil layer, which would be useful for diminishing the environmental pollution caused by pesticide.
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Affiliation(s)
- Bangchao Zhong
- Key Lab of Guangdong for High Property and Functional Polymer Materials, South China University of Technology , Guangzhou 510640, China
| | - Song Wang
- Key Lab of Guangdong for High Property and Functional Polymer Materials, South China University of Technology , Guangzhou 510640, China
| | - Huanhuan Dong
- Key Lab of Guangdong for High Property and Functional Polymer Materials, South China University of Technology , Guangzhou 510640, China
| | - Yuanfang Luo
- Key Lab of Guangdong for High Property and Functional Polymer Materials, South China University of Technology , Guangzhou 510640, China
| | - Zhixin Jia
- Key Lab of Guangdong for High Property and Functional Polymer Materials, South China University of Technology , Guangzhou 510640, China
| | - Xiangyang Zhou
- Department of Chemistry and Chemical Engineering, Zhongkai University of Agriculture and Engineering , Guangzhou 510225, China
| | - Mingzhou Chen
- Guangzhou Sugarcane Industry Research Institute, Guangdong Academy of Sciences , Guangzhou 510316, China
| | - Dong Xie
- Guangzhou Sugarcane Industry Research Institute, Guangdong Academy of Sciences , Guangzhou 510316, China
| | - Demin Jia
- Key Lab of Guangdong for High Property and Functional Polymer Materials, South China University of Technology , Guangzhou 510640, China
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280
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Singh S, Vishwakarma K, Singh S, Sharma S, Dubey NK, Singh VK, Liu S, Tripathi DK, Chauhan DK. Understanding the plant and nanoparticle interface at transcriptomic and proteomic level: A concentric overview. ACTA ACUST UNITED AC 2017. [DOI: 10.1016/j.plgene.2017.03.006] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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281
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Selyutina OY, Apanasenko IE, Khalikov SS, Polyakov NE. Natural Poly- and Oligosaccharides as Novel Delivery Systems for Plant Protection Compounds. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2017; 65:6582-6587. [PMID: 28731703 DOI: 10.1021/acs.jafc.7b02591] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
To increase the bioavailability of plant protection products, we have applied a new approach based on noncovalent association with natural water-soluble polysaccharides and oligosaccharides as delivery systems (DSs). The mechanochemical technique has been applied to prepare the solid-state nanodispersed compositions of antidote 1,8-naphthalic anhydride (NA) with arabinogalactan, sodium salt of carboxymethylcellulose, and glycyrrhizin as DSs. The effect of DSs on the solubility and the penetration of NA into the seeds of barley and wheat has been investigated by various physicochemical techniques. All DSs considerably enhance the solubility of NA and improve its penetration into the grain. The influence of polysaccharides and oligosaccharides on artificial lipid membranes was studied by the NMR relaxation method. It was concluded that the effect of polysaccharides and oligosaccharides on the penetration efficacy of plant protection products might be associated with the detected solubility enhancement and the affinity of DSs to the surface of cell membranes.
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Affiliation(s)
- O Yu Selyutina
- Voevodsky Institute of Chemical Kinetics and Combustion of Siberian Branch of the Russian Academy of Sciences , Institutskaya Street, 3, 630090, Novosibirsk, Russia
| | - I E Apanasenko
- Voevodsky Institute of Chemical Kinetics and Combustion of Siberian Branch of the Russian Academy of Sciences , Institutskaya Street, 3, 630090, Novosibirsk, Russia
| | - S S Khalikov
- Nesmeyanov Institute of Organoelement Compounds of Russian Academy of Sciences , Vavilova Street, 28, 119334, Moscow, Russia
| | - N E Polyakov
- Voevodsky Institute of Chemical Kinetics and Combustion of Siberian Branch of the Russian Academy of Sciences , Institutskaya Street, 3, 630090, Novosibirsk, Russia
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282
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Werdin González JO, Jesser EN, Yeguerman CA, Ferrero AA, Fernández Band B. Polymer nanoparticles containing essential oils: new options for mosquito control. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2017; 24:17006-17015. [PMID: 28580545 DOI: 10.1007/s11356-017-9327-4] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2017] [Accepted: 05/19/2017] [Indexed: 06/07/2023]
Abstract
Mosquitoes (Diptera: Culicidae) are vectors of important parasites and pathogens causing death, poverty and social disability worldwide. The overuse of synthetic insecticides to control mosquito vectors lead to resistance, adverse environmental effects and high operational costs. Therefore, the development of eco-friendly control tools is an important public health challenge. In this study, two different essential oils (EO) (geranium, Geranium maculatum, and bergamot, Citrus bergamia) loaded polymeric nanoparticle (PN) were elaborated using polyethylene glycol (PEG) and chitosan (Qx) as the polymeric matrix/coating. In addition, the mosquito larvicidal acute and residual activity of the PN was evaluated on Culex pipiens pipiens. The physicochemical characterization of PN revealed that PEG-PN had sizes <255 nm and encapsulation efficiency between 68 and 77%; Qx-PN showed sizes <535 nm and encapsulation efficiency between 22 and 38%. From the toxicological test, it was observed that Qx-PN produced higher acute and residual activity than PEG-PN. Overall, this study highlights that polymer nanoparticles containing essential oil are a promising source of eco-friendly mosquito larvicidal products.
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Affiliation(s)
- Jorge Omar Werdin González
- FIA Laboratory, Analytical Chemistry Section, INQUISUR-CONICET, Universidad Nacional del Sur, Av. Alem 1253 (B8000CPB), Bahía Blanca, Buenos Aires, Argentina.
- Laboratorio de Zoología de Invertebrados II, Departamento de Biología, Bioquímica y Farmacia, Universidad Nacional del Sur, San Juan 670 (B8000CPB), Bahía Blanca, Buenos Aires, Argentina.
| | - Emiliano Nicolás Jesser
- Laboratorio de Zoología de Invertebrados II, INBIOSUR-CONICET, San Juan 670 (B8000CPB), Bahía Blanca, Buenos Aires, Argentina
| | - Cristhian Alan Yeguerman
- Laboratorio de Zoología de Invertebrados II, Departamento de Biología, Bioquímica y Farmacia, Universidad Nacional del Sur, San Juan 670 (B8000CPB), Bahía Blanca, Buenos Aires, Argentina
| | - Adriana Alicia Ferrero
- Laboratorio de Zoología de Invertebrados II, INBIOSUR-CONICET, San Juan 670 (B8000CPB), Bahía Blanca, Buenos Aires, Argentina
| | - Beatriz Fernández Band
- FIA Laboratory, Analytical Chemistry Section, INQUISUR-CONICET, Universidad Nacional del Sur, Av. Alem 1253 (B8000CPB), Bahía Blanca, Buenos Aires, Argentina
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283
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Prasad R, Bhattacharyya A, Nguyen QD. Nanotechnology in Sustainable Agriculture: Recent Developments, Challenges, and Perspectives. Front Microbiol 2017; 8:1014. [PMID: 28676790 PMCID: PMC5476687 DOI: 10.3389/fmicb.2017.01014] [Citation(s) in RCA: 312] [Impact Index Per Article: 44.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2017] [Accepted: 05/22/2017] [Indexed: 11/29/2022] Open
Abstract
Nanotechnology monitors a leading agricultural controlling process, especially by its miniature dimension. Additionally, many potential benefits such as enhancement of food quality and safety, reduction of agricultural inputs, enrichment of absorbing nanoscale nutrients from the soil, etc. allow the application of nanotechnology to be resonant encumbrance. Agriculture, food, and natural resources are a part of those challenges like sustainability, susceptibility, human health, and healthy life. The ambition of nanomaterials in agriculture is to reduce the amount of spread chemicals, minimize nutrient losses in fertilization and increased yield through pest and nutrient management. Nanotechnology has the prospective to improve the agriculture and food industry with novel nanotools for the controlling of rapid disease diagnostic, enhancing the capacity of plants to absorb nutrients among others. The significant interests of using nanotechnology in agriculture includes specific applications like nanofertilizers and nanopesticides to trail products and nutrients levels to increase the productivity without decontamination of soils, waters, and protection against several insect pest and microbial diseases. Nanotechnology may act as sensors for monitoring soil quality of agricultural field and thus it maintain the health of agricultural plants. This review covers the current challenges of sustainability, food security and climate change that are exploring by the researchers in the area of nanotechnology in the improvement of agriculture.
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Affiliation(s)
- Ram Prasad
- Amity Institute of Microbial Technology, Amity UniversityNoida, India
| | - Atanu Bhattacharyya
- Department of Entomology, University of Agricultural Sciences, Gandhi Krishi Vigyan KendraBengaluru, India
| | - Quang D. Nguyen
- Research Centre of Bioengineering and Process Engineering, Faculty of Food Science, Szent István UniversityBudapest, Hungary
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284
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Huang J, Liang C, Zhang X. Effects of nano-SiO 2 on the adsorption of chiral metalaxyl to agricultural soils. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2017; 225:201-210. [PMID: 28388518 DOI: 10.1016/j.envpol.2017.03.065] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/29/2016] [Revised: 03/16/2017] [Accepted: 03/27/2017] [Indexed: 06/07/2023]
Abstract
The application of nanotechnology in agriculture, pesticide delivery and other related fields increases the occurrence of engineered nanoparticles (ENPs) in soil. Since ENPs have larger surface areas and normally a high adsorption capacity for organic pollutants, they are thought to influence the transport of pesticides in soils and thereafter influence the uptake and transformation of pesticides. The adsorption pattern of racemic-metalaxyl on agricultural soils including kinetics and isotherms changed in the presence of nano-SiO2. The adsorption of racemic-metalaxyl on agricultural soil was not enantioselective, in either the presence or the absence of SiO2. The adsorption of racemic-metalaxyl on SiO2 decreased to some extent in soil-SiO2 mixture, and the absolute decrease was dependent on soil properties. The decreased adsorption of metalaxyl on SiO2 in soil-SiO2 mixture arose from the competitive adsorption of soil-dissolved organic matter and the different dispersion and aggregation behaviors of SiO2 in the presence of soil. Interactions between SiO2 and soil particles also contributed to the decreased adsorption of metalaxyl on SiO2, and the interactions were analyzed by extended Derjaguin-Landau-Verwey-Overbeek theory. The results showed that the presence of nano-particles in soils could decrease the mobility of pesticides in soils and that this effect varied with different soil compositions.
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Affiliation(s)
- Junxing Huang
- School of Resources and Environmental Science, Wuhan University, Wuhan, 430079, China
| | - Chuanzhou Liang
- School of Resources and Environmental Science, Wuhan University, Wuhan, 430079, China
| | - Xu Zhang
- School of Resources and Environmental Science, Wuhan University, Wuhan, 430079, China.
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285
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Zhou Y, Jiang S, Jiao Y, Wang H. Synergistic effects of nanochitin on inhibition of tobacco root rot disease. Int J Biol Macromol 2017; 99:205-212. [PMID: 28237570 DOI: 10.1016/j.ijbiomac.2017.02.069] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2016] [Revised: 01/15/2017] [Accepted: 02/17/2017] [Indexed: 01/06/2023]
Abstract
Nanomaterials have great potential for use in various fields, due to their unique properties. In order to explore the bioactivity of nanochitin on tobacco, the effects of nanochitin suspensions on tobacco seed germination, seedling growth, and synergistic effects with fungicides were studied in indoor and field trials. Results showed that 0.004% (w/v) of nanochitin improved tobacco seed germination and shortened mean time to germination significantly; 0.005% (w/v) of nanochitin increased tobacco stem length, stem girth, leaf number and leaf area, and 0.001% (w/v) of nanochitin had synergistic effects on inhibition of tobacco root rot when mixed with metalaxyl mancozeb and thiophanate methyl fungicides. This indicates that nanochitin suspensions have a strong potential to protect tobacco from tobacco root rot diseases and reduce the use of chemical fungicides in tobacco plantations.
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Affiliation(s)
- Yang Zhou
- NanoAgro Center, Henan Agricultural University, Zhengzhou 450002, China; College of Plant Protection, Henan Agricultural University, Zhengzhou 450002, China
| | - Shijun Jiang
- NanoAgro Center, Henan Agricultural University, Zhengzhou 450002, China; College of Plant Protection, Henan Agricultural University, Zhengzhou 450002, China
| | - Yongji Jiao
- College of Plant Protection, Henan Agricultural University, Zhengzhou 450002, China
| | - Hezhong Wang
- NanoAgro Center, Henan Agricultural University, Zhengzhou 450002, China.
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286
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Chariou PL, Steinmetz NF. Delivery of Pesticides to Plant Parasitic Nematodes Using Tobacco Mild Green Mosaic Virus as a Nanocarrier. ACS NANO 2017; 11:4719-4730. [PMID: 28345874 DOI: 10.1021/acsnano.7b00823] [Citation(s) in RCA: 51] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Abstract
Plant parasitic nematodes are a major burden to the global agricultural industry, causing a $157 billion loss each year in crop production worldwide. Effective treatment requires large doses of nematicides to be applied, putting the environment and human health at risk. Challenges are to treat nematodes that are located deep within the soil, feeding on the roots of plants. To attack the problem at its roots, we propose the use of tobacco mild green mosaic virus (TMGMV), an EPA-approved herbicide as a carrier to deliver nematicides. TMGMV self-assembles into a 300 × 18 nm soft matter nanorod with a 4 nm-wide hollow channel. This plant virus is comprised of 2130 identical coat protein subunits, each of which displays solvent-exposed carboxylate groups from Glu/Asp as well as Tyr side chains, enabling the functionalization of the carrier with cargo. We report (1) the successful formulation and characterization of TMGMV loaded with ∼1500 copies of the anthelmintic drug crystal violet (CV), (2) the bioavailability and treatment efficacy of CVTMGMV vs CV to nematodes in liquid cultures, and (3) the superior soil mobility of CVTMGMV compared to free CV.
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Affiliation(s)
- Paul L Chariou
- Departments of Biomedical Engineering, ‡Radiology, §Materials Science and Engineering, ∥Macromolecular Science and Engineering, and ⊥Division of General Medical Sciences-Oncology, Case Comprehensive Cancer Center, Case Western Reserve University Schools of Medicine and Engineering , Cleveland, Ohio 44106, United States
| | - Nicole F Steinmetz
- Departments of Biomedical Engineering, ‡Radiology, §Materials Science and Engineering, ∥Macromolecular Science and Engineering, and ⊥Division of General Medical Sciences-Oncology, Case Comprehensive Cancer Center, Case Western Reserve University Schools of Medicine and Engineering , Cleveland, Ohio 44106, United States
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287
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Zhao P, Cao L, Ma D, Zhou Z, Huang Q, Pan C. Synthesis of Pyrimethanil-Loaded Mesoporous Silica Nanoparticles and Its Distribution and Dissipation in Cucumber Plants. Molecules 2017; 22:E817. [PMID: 28509872 PMCID: PMC6154307 DOI: 10.3390/molecules22050817] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2017] [Revised: 05/09/2017] [Accepted: 05/11/2017] [Indexed: 12/13/2022] Open
Abstract
Mesoporous silica nanoparticles are used as pesticide carries in plants, which has been considered as a novel method to reduce the indiscriminate use of conventional pesticides. In the present work, mesoporous silica nanoparticles with particle diameters of 200-300 nm were synthesized in order to obtain pyrimethanil-loaded nanoparticles. The microstructure of the nanoparticles was observed by scanning electron microscopy. The loading content of pyrimethanil-loaded nanoparticles was investigated. After treatment on cucumber leaves, the concentrations of pyrimethanil were determined in different parts of cucumber over a period of 48 days using high performance liquid chromatography tandem mass spectrometry. It was shown that the pyrimethanil-loaded mesoporous silica nanoparticles might be more conducive to acropetal, rather than basipetal, uptake, and the dosage had almost no effect on the distribution and dissipation rate in cucumber plants. The application of the pesticide-loaded nanoparticles in leaves had a low risk of pyrimethanil accumulating in the edible part of the plant.
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Affiliation(s)
- Pengyue Zhao
- Key Laboratory of Integrated Pest Management in Crops, Ministry of Agriculture, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, No. 2 Yuanmingyuan West Road, Haidian District, Beijing 100193, China.
| | - Lidong Cao
- Key Laboratory of Integrated Pest Management in Crops, Ministry of Agriculture, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, No. 2 Yuanmingyuan West Road, Haidian District, Beijing 100193, China.
| | - Dukang Ma
- Key Laboratory of Integrated Pest Management in Crops, Ministry of Agriculture, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, No. 2 Yuanmingyuan West Road, Haidian District, Beijing 100193, China.
| | - Zhaolu Zhou
- Key Laboratory of Integrated Pest Management in Crops, Ministry of Agriculture, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, No. 2 Yuanmingyuan West Road, Haidian District, Beijing 100193, China.
| | - Qiliang Huang
- Key Laboratory of Integrated Pest Management in Crops, Ministry of Agriculture, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, No. 2 Yuanmingyuan West Road, Haidian District, Beijing 100193, China.
| | - Canping Pan
- Department of Applied Chemistry, College of Science, China Agricultural University, No. 2 Yuanmingyuan West Road, Haidian District, Beijing 100193, China.
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288
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Metal Oxide Nanoparticles Assisted Controlled Release of Synthetic Insect Attractant for Effective and Sustainable Trapping of Fruit Flies. J CLUST SCI 2017. [DOI: 10.1007/s10876-017-1215-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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289
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Guo D, Dou D, Li X, Zhang Q, Bhutto ZA, Wang L. Ivermection-loaded solid lipid nanoparticles: preparation, characterisation, stability and transdermal behaviour. ARTIFICIAL CELLS NANOMEDICINE AND BIOTECHNOLOGY 2017; 46:255-262. [PMID: 28368657 DOI: 10.1080/21691401.2017.1307207] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
To avoid potential systematical toxicity, solid lipid nanoparticles (SLNs) were prepared as a vehicle for transdermal delivery of ivermectin (IVM) using hot homogenisation followed by ultrasonic method. The as-prepared SLNs were approximately spherical shape with good stability. IVM was encapsulated in amorphous form within SLNs and displayed prolonged release from SLNs without burst release due to high encapsulation efficiency (EE). The cumulative permeation of IVM across excised rat skin from SLNs was significantly increased compared to the ivermection suspension. These results indicated that the proposed SLNs can be considered as an efficient carrier for dermal delivery of IVM to effectively treat scabies.
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Affiliation(s)
- Dawei Guo
- a Pharmaceutical Sciences Research Centre, Laboratory of Veterinary Pharmacology and Toxicology, College of Veterinary Medicine, Nanjing Agricultural University , Nanjing , PR China
| | - Dandan Dou
- a Pharmaceutical Sciences Research Centre, Laboratory of Veterinary Pharmacology and Toxicology, College of Veterinary Medicine, Nanjing Agricultural University , Nanjing , PR China
| | - Xinyu Li
- a Pharmaceutical Sciences Research Centre, Laboratory of Veterinary Pharmacology and Toxicology, College of Veterinary Medicine, Nanjing Agricultural University , Nanjing , PR China
| | - Qian Zhang
- a Pharmaceutical Sciences Research Centre, Laboratory of Veterinary Pharmacology and Toxicology, College of Veterinary Medicine, Nanjing Agricultural University , Nanjing , PR China
| | - Zohaib Ahmed Bhutto
- a Pharmaceutical Sciences Research Centre, Laboratory of Veterinary Pharmacology and Toxicology, College of Veterinary Medicine, Nanjing Agricultural University , Nanjing , PR China
| | - Liping Wang
- a Pharmaceutical Sciences Research Centre, Laboratory of Veterinary Pharmacology and Toxicology, College of Veterinary Medicine, Nanjing Agricultural University , Nanjing , PR China
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290
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Preparation of a biodegradable poly(vinyl alcohol)-starch composite film and its application in pesticide controlled release. J Appl Polym Sci 2017. [DOI: 10.1002/app.45051] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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291
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Allou NB, Saikia P, Borah A, Goswamee RL. Hybrid nanocomposites of layered double hydroxides: an update of their biological applications and future prospects. Colloid Polym Sci 2017. [DOI: 10.1007/s00396-017-4047-3] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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292
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Álvarez-Paino M, Muñoz-Bonilla A, Fernández-García M. Antimicrobial Polymers in the Nano-World. NANOMATERIALS (BASEL, SWITZERLAND) 2017; 7:E48. [PMID: 28336882 PMCID: PMC5333033 DOI: 10.3390/nano7020048] [Citation(s) in RCA: 81] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/06/2016] [Revised: 01/11/2017] [Accepted: 01/24/2017] [Indexed: 02/08/2023]
Abstract
Infections are one of the main concerns of our era due to antibiotic-resistant infections and the increasing costs in the health-care sector. Within this context, antimicrobial polymers present a great alternative to combat these problems since their mechanisms of action differ from those of antibiotics. Therefore, the microorganisms' resistance to these polymeric materials is avoided. Antimicrobial polymers are not only applied in the health-care sector, they are also used in many other areas. This review presents different strategies that combine nanoscience and nanotechnology in the polymer world to combat contaminations from bacteria, fungi or algae. It focuses on the most relevant areas of application of these materials, viz. health, food, agriculture, and textiles.
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Affiliation(s)
- Marta Álvarez-Paino
- Centre for Biomolecular Sciences, School of Pharmacy, University of Nottingham, Nottingham NG7 2RD, UK.
| | - Alexandra Muñoz-Bonilla
- Instituto de Ciencia y Tecnología de Polímeros (ICTP-CSIC); C/ Juan de la Cierva 3, Madrid 28006, Spain.
| | - Marta Fernández-García
- Instituto de Ciencia y Tecnología de Polímeros (ICTP-CSIC); C/ Juan de la Cierva 3, Madrid 28006, Spain.
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293
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Mondal P, Kumar R, Gogoi R. Azomethine based nano-chemicals: Development, in vitro and in vivo fungicidal evaluation against Sclerotium rolfsii , Rhizoctonia bataticola and Rhizoctonia solani. Bioorg Chem 2017; 70:153-162. [DOI: 10.1016/j.bioorg.2016.12.006] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2016] [Revised: 11/26/2016] [Accepted: 12/17/2016] [Indexed: 12/24/2022]
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294
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Jia JL, Jin XY, Zhu L, Zhang ZX, Liang WL, Wang GD, Zheng F, Wu XZ, Xu HH. Enhanced intracellular uptake in vitro by glucose-functionalized nanopesticides. NEW J CHEM 2017. [DOI: 10.1039/c7nj02571h] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Nanopesticides have been increasingly used in agriculture. To improve the uptake of the target organisms for nanopesticides, we designed a dual-ligand nanopesticide based on gold nanoparticles (Au NPs) as a carrier.
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Affiliation(s)
- Jin-Liang Jia
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresouces
- South China Agricultural University
- Guangzhou
- China
- College of Materials and Energy
| | - Xiao-Yong Jin
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresouces
- South China Agricultural University
- Guangzhou
- China
| | - Li Zhu
- College of Materials and Energy
- South China Agricultural University
- Guangzhou
- China
| | - Zhi-Xiang Zhang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresouces
- South China Agricultural University
- Guangzhou
- China
| | - Wen-Long Liang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresouces
- South China Agricultural University
- Guangzhou
- China
| | - Guo-Dong Wang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresouces
- South China Agricultural University
- Guangzhou
- China
- College of Materials and Energy
| | - Feng Zheng
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresouces
- South China Agricultural University
- Guangzhou
- China
- College of Materials and Energy
| | - Xin-Zhou Wu
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresouces
- South China Agricultural University
- Guangzhou
- China
| | - Han-Hong Xu
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresouces
- South China Agricultural University
- Guangzhou
- China
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295
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Yu M, Yao J, Liang J, Zeng Z, Cui B, Zhao X, Sun C, Wang Y, Liu G, Cui H. Development of functionalized abamectin poly(lactic acid) nanoparticles with regulatable adhesion to enhance foliar retention. RSC Adv 2017. [DOI: 10.1039/c6ra27345a] [Citation(s) in RCA: 73] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Functionalized abamectin poly(lactic acid) nanoparticles with different adhesion abilities to crop foliage can regulate folia retention of abamectin.
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Affiliation(s)
- Manli Yu
- Institute of Environment and Sustainable Development in Agriculture
- Chinese Academy of Agricultural Sciences
- Beijing
- PR China
| | - Junwei Yao
- Institute of Environment and Sustainable Development in Agriculture
- Chinese Academy of Agricultural Sciences
- Beijing
- PR China
| | - Jie Liang
- Institute of Environment and Sustainable Development in Agriculture
- Chinese Academy of Agricultural Sciences
- Beijing
- PR China
| | - Zhanghua Zeng
- Institute of Environment and Sustainable Development in Agriculture
- Chinese Academy of Agricultural Sciences
- Beijing
- PR China
| | - Bo Cui
- Institute of Environment and Sustainable Development in Agriculture
- Chinese Academy of Agricultural Sciences
- Beijing
- PR China
| | - Xiang Zhao
- Institute of Environment and Sustainable Development in Agriculture
- Chinese Academy of Agricultural Sciences
- Beijing
- PR China
| | - Changjiao Sun
- Institute of Environment and Sustainable Development in Agriculture
- Chinese Academy of Agricultural Sciences
- Beijing
- PR China
| | - Yan Wang
- Institute of Environment and Sustainable Development in Agriculture
- Chinese Academy of Agricultural Sciences
- Beijing
- PR China
| | - Guoqiang Liu
- Institute of Environment and Sustainable Development in Agriculture
- Chinese Academy of Agricultural Sciences
- Beijing
- PR China
| | - Haixin Cui
- Institute of Environment and Sustainable Development in Agriculture
- Chinese Academy of Agricultural Sciences
- Beijing
- PR China
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296
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Cho SG. Chemical Stability of Carbon Nanotube Containers Loaded with Nitromethane: Reactive Molecular Dynamic Simulation. B KOREAN CHEM SOC 2016. [DOI: 10.1002/bkcs.11034] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Soo Gyeong Cho
- The 4th R&D Institute; Agency for Defense Development; Daejeon 305-600 Korea
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297
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Vinceković M, Jalšenjak N, Topolovec-Pintarić S, Đermić E, Bujan M, Jurić S. Encapsulation of Biological and Chemical Agents for Plant Nutrition and Protection: Chitosan/Alginate Microcapsules Loaded with Copper Cations and Trichoderma viride. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2016; 64:8073-8083. [PMID: 27715032 DOI: 10.1021/acs.jafc.6b02879] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Novel chitosan/alginate microcapsules simultaneously loaded with copper cations and Trichoderma viride have been prepared and characterized. Information about the intermolecular interactions between biopolymers and bioactive agents was obtained by Fourier transform infrared spectroscopy. Encapsulation of T. viride spores and the presence of copper cations in the same compartment does not inhibit their activity. Microcapsule loading capacity and efficiency as well as swelling behavior and release depend on both the size of the microcapsule and bioactive agents. The in vitro copper cation release profile was fitted to a Korsmeyer-Peppas empirical model. Fickian diffusion was found to be a rate-controlling mechanism of release from smaller microcapsules, whereas anomalous transport kinetics controlled release from larger microcapsules. The T. viride spore release profile exhibited exponential release over the initial lag time. The results obtained opened perspectives for the future use of chitosan/alginate microcapsules simultaneously loaded with biological and chemical agents in plant nutrition and protection.
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Affiliation(s)
- Marko Vinceković
- Department of Chemistry and ‡Department of Plant Pathology, University of Zagreb Faculty of Agriculture , 10000 Zagreb, Croatia
| | - Nenad Jalšenjak
- Department of Chemistry and ‡Department of Plant Pathology, University of Zagreb Faculty of Agriculture , 10000 Zagreb, Croatia
| | - Snježana Topolovec-Pintarić
- Department of Chemistry and ‡Department of Plant Pathology, University of Zagreb Faculty of Agriculture , 10000 Zagreb, Croatia
| | - Edyta Đermić
- Department of Chemistry and ‡Department of Plant Pathology, University of Zagreb Faculty of Agriculture , 10000 Zagreb, Croatia
| | - Marija Bujan
- Department of Chemistry and ‡Department of Plant Pathology, University of Zagreb Faculty of Agriculture , 10000 Zagreb, Croatia
| | - Slaven Jurić
- Department of Chemistry and ‡Department of Plant Pathology, University of Zagreb Faculty of Agriculture , 10000 Zagreb, Croatia
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298
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González JW, Yeguerman C, Marcovecchio D, Delrieux C, Ferrero A, Band BF. Evaluation of sublethal effects of polymer-based essential oils nanoformulation on the german cockroach. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2016; 130:11-18. [PMID: 27062341 DOI: 10.1016/j.ecoenv.2016.03.045] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/03/2016] [Revised: 03/22/2016] [Accepted: 03/29/2016] [Indexed: 06/05/2023]
Abstract
The German cockroach, Blattella germanica (L.), is a serious household and public health pest worldwide. The aim of the present study was to evaluate the sublethal activity of polymer-based essential oils (EOs) nanoparticles (NPs) on adults of B. germanica. The LC50 and LC25 for contact toxicity were determined. To evaluate the repellency of EOs and NPs at LC25, a software was specially created in order to track multiple insects on just-recorded videos, and generate statistics using the obtained information. The effects of EOs and NPs at LC25 and LC50 on the nutritional physiology were also evaluated. The results showed that NPs exerted sublethal effects on the German cockroach, since these products enhance the repellent effects of the EOs and negatively affected the nutritional indices and the feeding deterrence index.
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Affiliation(s)
- Jorge Werdin González
- FIA Laboratory, Analytical Chemistry Section, INQUISUR-CONICET, Universidad Nacional del Sur, Av. Alem 1253, B8000CPB Bahía Blanca, Buenos Aires, Argentina; Laboratorio de Zoología de Invertebrados II. Departamento de Biología, Bioquímica y Farmacia. Universidad Nacional del Sur, San Juan 670, B8000CPB Bahía Blanca, Buenos Aires, Argentina.
| | - Cristhian Yeguerman
- Laboratorio de Zoología de Invertebrados II. Departamento de Biología, Bioquímica y Farmacia. Universidad Nacional del Sur, San Juan 670, B8000CPB Bahía Blanca, Buenos Aires, Argentina
| | - Diego Marcovecchio
- Laboratorio de Ciencias de las Imágenes, IIIE - CONICET. Universidad Nacional del Sur, Av. Alem 1253, B8000CPB Bahía Blanca, Buenos Aires, Argentina
| | - Claudio Delrieux
- Laboratorio de Ciencias de las Imágenes, IIIE - CONICET. Universidad Nacional del Sur, Av. Alem 1253, B8000CPB Bahía Blanca, Buenos Aires, Argentina
| | - Adriana Ferrero
- Laboratorio de Zoología de Invertebrados II. Departamento de Biología, Bioquímica y Farmacia. Universidad Nacional del Sur, San Juan 670, B8000CPB Bahía Blanca, Buenos Aires, Argentina; Laboratorio de Zoología de Invertebrados II, INBIOSUR-CONICET, San Juan 670, B8000CPB Bahía Blanca, Buenos Aires, Argentina
| | - Beatriz Fernández Band
- FIA Laboratory, Analytical Chemistry Section, INQUISUR-CONICET, Universidad Nacional del Sur, Av. Alem 1253, B8000CPB Bahía Blanca, Buenos Aires, Argentina
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299
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Quaternized Chitosan-Capped Mesoporous Silica Nanoparticles as Nanocarriers for Controlled Pesticide Release. NANOMATERIALS 2016; 6:nano6070126. [PMID: 28335254 PMCID: PMC5224598 DOI: 10.3390/nano6070126] [Citation(s) in RCA: 65] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/14/2016] [Revised: 06/16/2016] [Accepted: 06/22/2016] [Indexed: 01/04/2023]
Abstract
Nanotechnology-based pesticide formulations would ensure effective utilization of agricultural inputs. In the present work, mesoporous silica nanoparticles (MSNs) with particle diameters of ~110 nm and pore sizes of ~3.7 nm were synthesized via a liquid crystal templating mechanism. A water-soluble chitosan (CS) derivative (N-(2-hydroxyl)propyl-3-trimethyl ammonium CS chloride, HTCC) was successfully capped on the surface of pyraclostrobin-loaded MSNs. The physicochemical and structural analyses showed that the electrostatic interactions and hydrogen bonding were the major forces responsible for the formation of HTCC-capped MSNs. HTCC coating greatly improved the loading efficiency (LC) (to 40.3%) compared to using bare MSNs as a single encapsulant (26.7%). The microstructure of the nanoparticles was revealed by scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The pyraclostrobin-loaded nanoparticles showed an initial burst and subsequent sustained release behavior. HTCC-capped MSNs released faster than bare MSNs in the initial stage. Pyraclostrobin-loaded HTCC-capped MSNs with half doses of pyraclostrobin technical demonstrated almost the same fungicidal activity against Phomopsis asparagi (Sacc.), which obviously reduced the applied pesticide and enhanced the utilization efficiency. Therefore, HTCC-decorated MSNs demonstrated great potential as nanocarriers in agrochemical applications.
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300
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Cao L, Zhang H, Cao C, Zhang J, Li F, Huang Q. Quaternized Chitosan-Capped Mesoporous Silica Nanoparticles as Nanocarriers for Controlled Pesticide Release. NANOMATERIALS (BASEL, SWITZERLAND) 2016. [PMID: 28335254 DOI: 10.1039/c4ay01203h] [Citation(s) in RCA: 169] [Impact Index Per Article: 21.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
Nanotechnology-based pesticide formulations would ensure effective utilization of agricultural inputs. In the present work, mesoporous silica nanoparticles (MSNs) with particle diameters of ~110 nm and pore sizes of ~3.7 nm were synthesized via a liquid crystal templating mechanism. A water-soluble chitosan (CS) derivative (N-(2-hydroxyl)propyl-3-trimethyl ammonium CS chloride, HTCC) was successfully capped on the surface of pyraclostrobin-loaded MSNs. The physicochemical and structural analyses showed that the electrostatic interactions and hydrogen bonding were the major forces responsible for the formation of HTCC-capped MSNs. HTCC coating greatly improved the loading efficiency (LC) (to 40.3%) compared to using bare MSNs as a single encapsulant (26.7%). The microstructure of the nanoparticles was revealed by scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The pyraclostrobin-loaded nanoparticles showed an initial burst and subsequent sustained release behavior. HTCC-capped MSNs released faster than bare MSNs in the initial stage. Pyraclostrobin-loaded HTCC-capped MSNs with half doses of pyraclostrobin technical demonstrated almost the same fungicidal activity against Phomopsis asparagi (Sacc.), which obviously reduced the applied pesticide and enhanced the utilization efficiency. Therefore, HTCC-decorated MSNs demonstrated great potential as nanocarriers in agrochemical applications.
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Affiliation(s)
- Lidong Cao
- Key Laboratory of Integrated Pest Management in Crops, Ministry of Agriculture, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, No. 2 Yuanmingyuan West Road, Beijing 100193, China.
| | - Huirong Zhang
- Key Laboratory of Integrated Pest Management in Crops, Ministry of Agriculture, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, No. 2 Yuanmingyuan West Road, Beijing 100193, China.
| | - Chong Cao
- Key Laboratory of Integrated Pest Management in Crops, Ministry of Agriculture, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, No. 2 Yuanmingyuan West Road, Beijing 100193, China.
| | - Jiakun Zhang
- Key Laboratory of Integrated Pest Management in Crops, Ministry of Agriculture, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, No. 2 Yuanmingyuan West Road, Beijing 100193, China.
| | - Fengmin Li
- Key Laboratory of Integrated Pest Management in Crops, Ministry of Agriculture, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, No. 2 Yuanmingyuan West Road, Beijing 100193, China.
| | - Qiliang Huang
- Key Laboratory of Integrated Pest Management in Crops, Ministry of Agriculture, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, No. 2 Yuanmingyuan West Road, Beijing 100193, China.
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