New oligochitosan-nanosilica hybrid materials: preparation and application on chili plants for resistance to anthracnose disease and growth enhancement

Nguyễn, Như Gia; Nguyen, Dai Hai; Pham, Dinh Dzung; Dang, Van Phu; Hiến, Nguyễn Quốc; Hoang, Dung Van

doi:10.1038/pj.2017.58

Cited by 30 publications

(17 citation statements)

References 34 publications

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“…Figure 2A shows that characteristic peaks appear at 1119 cm −1 (the asymmetrical stretching vibration of O–Si–O), 779 cm −1 (the symmetrical stretching vibration of O–Si–O), and 452 cm −1 (the bending vibration of O–Si–O) [15]. The band at 1179–1200 cm −1 is attributed to the asymmetric stretching mode of the SiO 4 coordination units; the broad peak at 3449 cm −1 is assigned to stretching of the –OH groups, while a small and low peak that appeared at 1639 cm −1 is related to the bending vibration of water molecules absorbed onto the surface of the silica particles [11,16].…”

Section: Resultsmentioning

confidence: 99%

“…Simultaneously, the novel nontoxic hybrid material can be a new vaccine for stimulating self-defense and growth of plants. Previous reports indicated that the materials from OCS and/or nanosilica created positive impacts on plants physiology and defense response as well as yield increases [11,12]. In contrast, it was found that penicillic acid is cytotoxic and hepatotoxic as well as acutely toxic to animals such as poultry, rats, and rabbits.…”

Section: Resultsmentioning

confidence: 99%

“…The synthesis of hybrid materials based on OCS and nSiO 2 with a mass ratio of 1:1 was carried out as previously reported [11,12] with modifications as follows. nSiO 2 (1.00 g) was dissolved in 6.65 mL of 1 M NaOH in beaker A, while CMC (0.30 g) was dissolved with distilled water in beaker B.…”

Section: Methodsmentioning

confidence: 99%

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Functional Nanostructured Oligochitosan–Silica/Carboxymethyl Cellulose Hybrid Materials: Synthesis and Investigation of Their Antifungal Abilities

et al. 2019

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Functional hybrid materials were successfully synthesized from low-cost waste products, such as oligochitosan (OCS) obtained from chitosan (one of the main components in crab shells) and nanosilica (nSiO2) obtained from rice husk, in a 1:1 ratio (w/w), and their dispersion in the presence of carboxymethyl cellulose at pH 7 was stable for over one month without aggregation. The molecular weights, chemical structures, morphologies, and crystallinities of the obtained materials were characterized by GPC, FTIR, TEM, and XRD, respectively. The antifungal effects of OCS, nSiO2, and the OCS/nSiO2 hybrid materials were investigated via a disk-diffusion method. The results showed that the nanohybrid materials had better resistance to Phytophthora infestans fungus than the individual components, and a concentration of the OCS2/nSiO2 hybrid material of 800 mg L−1 was the lowest concentration where the material completely inhibited Phytophthora infestans growth, as measured via an agar dilution method. This study not only creates a novel environmentally friendly material with unique synergistic effects that can replace current toxic agrochemicals but also can be considered a new platform for further research in green agricultural applications.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

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Functional Nanostructured Oligochitosan–Silica/Carboxymethyl Cellulose Hybrid Materials: Synthesis and Investigation of Their Antifungal Abilities

et al. 2019

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“…Figure 2 shows the XRD referring the ferrite, magnetite, nanosilica and magnetic nanosilica, that demonstrate the characteristic peak of this structures. In the X-ray diffractogram (XRD) the amorphous structure of the synthesized material was observed, however, a characteristic peak of the nanosilica is seen at approximately 2ϴ ≈ 22º, attributed to cristobalite, a polymorphic form of the free nanosilica (NGUYEN et al, 2017). However, the XRD standard is expected for nanoparticles of silica purified with sodium hydroxide solution with low molarity (YUVAKKUMAR et al, 2014).…”

Section: Discussionmentioning

confidence: 98%

Synthesis, characterization and cytotoxicity evaluation of magnetic nanosilica in L929 cell line

Bruckmann

Pimentel

Viana

et al. 2020

DS-CNT

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Recently, the incorporation of magnetic nanoparticles in nanomaterials has been showning to be very efficient, which leads to several scientific studies being carried out. Magnetic silica nanoparticles have excellent properties, enabling application in different fields including nanoscience. In this context, this work aimed to synthesize and characterize nanosilica with magnetic properties, in order to evaluate of the cytotoxicity in L929 cell line. The methodology for incorporation of magnetic nanoparticles proved to be fast and effective for obtaining the magnetic nanosilica (Nano SiO 2 .Fe 3 O 4). Through the characterization of FTIR, and exposure of the magnetic field it was possible to verify the incorporation of ferrite in the nanosilica, as well as the XRD technique, the reduction of the particle size and the degree of crystallinity was evidenced. It was possible to verify that the synthesized nano SiO 2 .Fe 3 O 4 showed to be safe in the treatments with lower concentrations with less amount of incoporated ferrite. Nevertheless, more characterizations and studies will be developed to determine the safety and therapeutic efficacy of this magnetic nanoparticles.

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“…New biopolymers composite oligochitosan (OCS) and OCS/nanosilica (OCS/nSiO 2 ) hybrid materials with impressive synergistic action are likely to be considered potential protections for plants infected with Colletotrichum sp. Conjugated nanomaterials may be considered possible biotic elicitors that not only avoid anthracnose disease but also efficiently enhance plant growth [ 86 ]. The same team found that silica and hybrid material had good antifungal properties against P. infestans , the causal organism for late blight in tomato and potato, but the antifungal properties of hybrid materials, due to their synergistic effect, had better antifungal capacities than that of each individual component.…”

Section: Nanocomposites and Their Mode Of Action On The Fungal Phymentioning

confidence: 99%

Nanohybrid Antifungals for Control of Plant Diseases: Current Status and Future Perspectives

Alghuthaymi

Rajkuberan

Periakaruppan

et al. 2021

JoF

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The changing climatic conditions have led to the concurrent emergence of virulent microbial pathogens that attack crop plants and exhibit yield and quality deterring impacts on the affected crop. To counteract, the widespread infections of fungal pathogens and post-harvest diseases it is highly warranted to develop sustainable techniques and tools bypassing traditional agriculture practices. Nanotechnology offers a solution to the problems in disease management in a simple lucid way. These technologies are revolutionizing the scientific/industrial sectors. Likewise, in agriculture, the nano-based tools are of great promise particularly for the development of potent formulations ensuring proper delivery of agrochemicals, nutrients, pesticides/insecticides, and even growth regulators for enhanced use efficiency. The development of novel nanocomposites for improved management of fungal diseases can mitigate the emergence of resilient and persistent fungal pathogens and the loss of crop produce due to diseases they cause. Therefore, in this review, we collectively manifest the role of nanocomposites for the management of fungal diseases.

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New oligochitosan-nanosilica hybrid materials: preparation and application on chili plants for resistance to anthracnose disease and growth enhancement

Cited by 30 publications

References 34 publications

Functional Nanostructured Oligochitosan–Silica/Carboxymethyl Cellulose Hybrid Materials: Synthesis and Investigation of Their Antifungal Abilities

Functional Nanostructured Oligochitosan–Silica/Carboxymethyl Cellulose Hybrid Materials: Synthesis and Investigation of Their Antifungal Abilities

Synthesis, characterization and cytotoxicity evaluation of magnetic nanosilica in L929 cell line

Nanohybrid Antifungals for Control of Plant Diseases: Current Status and Future Perspectives

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