Surface-modified polylactic acid nanospheres with chitosan for antibacterial activity of 1, 2-benzisothiazolin-3-one

Yao, Junwei; Liu, Jingxia; Zhi, Heng; Tao, Hongbing; Xie, Xiaobao; Shi, Qingshan

doi:10.1016/j.carbpol.2021.118406

Cited by 9 publications

(5 citation statements)

References 25 publications

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“…Whereas, the hydrodynamic intensity-average particle sizes measured by DLS revealed the hydrated state of particles, reflecting a single or aggregate structure of the particles. Similar findings had been reported in the prior research studies. , …”

Section: Resultssupporting

confidence: 92%

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Tannic Acid Interfacial Modification of Prochloraz Ethyl Cellulose Nanoparticles for Enhancing the Antimicrobial Effect and Biosafety of Fungicides

Yao,

Zhi,

Shi

et al. 2023

ACS Appl. Mater. Interfaces

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Section: Resultssupporting

confidence: 92%

“…Similar findings had been reported in the prior research studies. 33,34 3.2. Pro Loading, Encapsulation Efficiency, and Release Profile In Vitro.…”

Section: Resultsmentioning

confidence: 99%

Tannic Acid Interfacial Modification of Prochloraz Ethyl Cellulose Nanoparticles for Enhancing the Antimicrobial Effect and Biosafety of Fungicides

Yao,

Zhi,

Shi

et al. 2023

ACS Appl. Mater. Interfaces

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“…Chitosan is osteoconductive and has an effect on the wound healing process . In addition to the aforementioned properties of this biopolymer, chitosan is known to have an antimicrobial effect. , Several mechanisms can be found, but the most recognized one is the interaction between the positively charged chitosan with negatively charged groups on membrane proteins present at the microbial cell surface. This causes cell surface changes and alterations to cell permeability.…”

Section: Introductionmentioning

confidence: 99%

Microwave Atmospheric Plasma: A Versatile and Fast Way to Confer Antimicrobial Activity toward Direct Chitosan Immobilization onto Poly(lactic acid) Substrate

Carette

Mincheva

Herbin

et al. 2021

ACS Appl. Bio Mater.

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In this study, a simple method to immobilize chitosan on a poly(lactic acid) (PLA) surface was developed in a fast manner. The immobilization was realized in two steps. First, an atmospheric plasma (MWAP) torch was used to modify the PLA surface in less than 5 min in order to create enough activated sites toward the chitosan adhesion, followed by a direct dip coating to spread and immobilize chitosan on this MWAP-modified PLA surface. The modification of the PLA surface properties was confirmed by X-ray photoelectron spectroscopy (XPS), water contact angle, and atomic force microscopy. It resulted that the activated species derived from the plasma torch, i.e., hydroxyl and carboxylic acid moieties, enabled an increase of the hydrophilicity of the PLA surface. Interestingly, this activated surface allows a good spreading of chitosan solution from dip coating and leads to a homogeneous stable coating. Our XPS results bring us the hypothesis that the stabilization of the chitosan layer is mainly induced by noncovalent interactions such as hydrogen bonding and electrostatic interactions. A first insight into the biological properties of theses surfaces was assessed in terms of the antimicrobial activity of the here-designed surfaces.

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“…This showed strong inhibition of E. coli and S. aureus. 43 F. oxysporum is a plant-borne fungus distributed worldwide and has devastating effects on plants. 44,45 The diseases caused by this fungus on agricultural crops are the most difficult to control.…”

Section: Resultsmentioning

confidence: 99%

Layered Double Hydroxide Nanosheets Improve the Adhesion of Fungicides to Leaves and the Antifungal Performance

Zhi

Chen

et al. 2022

ACS Appl. Nano Mater.

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Pesticides play an important role in plant protection and food security. Owing to the weak adhesion of pesticide particles to leaves, large amounts of pesticides are required, which cause water and soil pollution, making it harmful to human health. Hence, self-assembled layered double hydroxides (LDHs) in a formulation with azoxystrobin (an antifungal agent) were introduced. They were released slowly and adhered well to various foliage surfaces. The ordered azoxystrobin–LDH organic–inorganic composite showed an adhesion of ∼70% with leaves and sustained release. The adhesion mechanism and antifungal properties were investigated. The charge distribution in LDHs caused good dispersion of pesticide formulation in water. The hydroxyl groups on the layer surfaces of LDHs mediated interactions between the azoxystrobin and leaf surfaces through electrostatic interactions (with azoxystrobin) and hydrogen bonds (with leaf surfaces). This work helps us understand the role of nanomaterials in improving pesticide efficacy and provides insights into applying nanomaterials for agricultural protection.

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Surface-modified polylactic acid nanospheres with chitosan for antibacterial activity of 1, 2-benzisothiazolin-3-one

Cited by 9 publications

References 25 publications

Tannic Acid Interfacial Modification of Prochloraz Ethyl Cellulose Nanoparticles for Enhancing the Antimicrobial Effect and Biosafety of Fungicides

Tannic Acid Interfacial Modification of Prochloraz Ethyl Cellulose Nanoparticles for Enhancing the Antimicrobial Effect and Biosafety of Fungicides

Microwave Atmospheric Plasma: A Versatile and Fast Way to Confer Antimicrobial Activity toward Direct Chitosan Immobilization onto Poly(lactic acid) Substrate

Layered Double Hydroxide Nanosheets Improve the Adhesion of Fungicides to Leaves and the Antifungal Performance

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