Thermoresponsive polymer-encapsulated hollow mesoporous silica nanoparticles and their application in insecticide delivery

Gao, Yunhao; Xiao, Yanan; Mao, Kaikai; Qin, Xiaoying; Zhang, Yuan; Li, Donglin; Zhang, Yanhui; Li, Jianhong; Wan, Hu; He, Shun

doi:10.1016/j.cej.2019.123169

Cited by 141 publications

(78 citation statements)

References 34 publications

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“…Polydopamine‐coated hollow MSNs have also been explored as pH‐sensitive nanocarriers to reverse MDR and improve anticancer effects on taxol and DOX double‐resistant human colorectal cancer cells 30 . Recently, our research group and others have developed several controlled release formulations (CRFs) of pesticides using versatile MSNs as scaffolds 31–36 . Furthermore, we have investigated the translocation, distribution and degradation behaviors of pesticide‐loaded MSNs in cucumber plant 37 .…”

Section: Introductionmentioning

confidence: 99%

Indoxacarb‐loaded fluorescent mesoporous silica nanoparticles for effective control of Plutella xylostella L. with decreased detoxification enzymes activities

Bilal

Cao

et al. 2020

Pest Management Science

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BACKGROUND: Plutella xylostella L. is a cosmopolitan lepidopteron insect pest for numerous vegetables and crops. The extensive use of insecticides has resulted in the emergence of resistance in P. xylostella. Thus, development of innovative strategies to overcome the insecticide resistance and control P. xylostella effectively is highly desirable. Inspired by the concept and breakthrough of nanomedical strategies to treat multidrug resistance, nanotechnology may find potential application in overcoming or delaying insecticide resistance. RESULTS: Carbon dots-embedded fluorescent mesoporous silica nanoparticles (FL-SiO 2 NPs) were successfully developed. Indoxacarb-loaded nanoparticles (IN@FL-SiO 2 NPs) were facilely prepared with loading content of 24%. The release of indoxacarb from IN@FL-SiO 2 NPs was pH sensitive. IN@FL-SiO 2 NPs exhibited better insecticidal activity against P. xylostella than indoxacarb technical under the same doses of active ingredient applied. Moreover, the activities of detoxification enzymes including GST, CarE, and P450 of P. xylostella were suppressed by treatment with IN@FL-SiO 2 NPs. Furthermore, the entry of FL-SiO 2 NPs into the midgut of P. xylostella was confirmed by CLSM observation. CONCLUSIONS: Although there is no absolute correlation between the enzyme activity and resistance, the change in corresponding enzyme activity can afford valuable information on the resistance situation. IN@FL-SiO 2 NPs treated P. xylostella displayed higher mortality, along with decreased enzymes activities, which indicates that nano-based delivery system of insecticide could be potentially applied in insecticide resistance management.

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Section: Introductionmentioning

confidence: 99%

Indoxacarb‐loaded fluorescent mesoporous silica nanoparticles for effective control of Plutella xylostella L. with decreased detoxification enzymes activities

Bilal

Cao

et al. 2020

Pest Management Science

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“…However, the presence of silica nanoparticles can increase the time-life of the sensing layer, as was reported by Chiu et al (2010) that used silica nanoparticles together with gold nanoparticles to enhance the characteristics of a polymer light-emitting devices. In other researches, Gao et al (2011) showed a pH-responsive core-shell fluorescent silica nanoparticles based sensor; Abnous et al (2018) reported the development of a fluorescent aptasensor for cocaine detection in human serum, based on silica nanoparticles coated with streptavidin; and Gao et al (2020) demonstrated polymer-encapsulated hollow mesoporous silica nanoparticles to be applied in agriculture as insecticide deliverers.…”

Section: Effect Of Silica Nanoparticlesmentioning

confidence: 99%

Colorimetry-based System for Gaseous Carbon Dioxide Detection

Mendes

Coelho

Pereira

et al. 2020

UPjeng

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The study of sensing materials to the detection of carbon dioxide (CO2) was achieved using p-nitrophenol (pNPh) as a colorimetric indicator. The sensing material was polymerized (NPLn), functionalized with 3-triethoxysilyl propyl isocyanate (IPTES) which sensitivity was tested in the form of a membrane as is and encapsulated in hollow silica nanoparticles. The sensing membranes were tested in a closed gas system comprising very precise flow controllers to deliver different concentrations of CO2 (vs. N2). The combination of the sensing membranes with multimode optical fibers and a dual-wavelength diode (LED) allows the measurement of the CO2 through the analysis of the induced absorbance changes with a self-referenced ratiometric scheme. The analysis of the sensing materials have shown significant changes in their chemical and physical properties and the results attest these materials with a strong potential for assessing CO2 dynamics in environmental, medical, and industrial applications.

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“…The surface groups of MSNs can be modified to respond to specific environmental factors, and provide an intelligent on–off controlled release model 25–27 . Gao et al 28 . prepared thermosensitive release hollow MSNs loaded with thiamethoxam (THI@HMS@P(NIPAM‐MAA)) using hard templates and seeded precipitation polymerization, but the preparation method of silica nanoparticles had a complicated process and long cycle.…”

Section: Introductionmentioning

confidence: 99%

Preparation of thermosensitive buprofezin‐loaded mesoporous silica nanoparticles by the sol–gel method and their application in pest control

Yang

Feng

et al. 2021

Pest Management Science

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BACKGROUND Environmental stimuli‐responsive release is one important way to reduce the dosage of pesticide, increase the usage efficiency and improve environmental compatibility. RESULTS On this basis, we synthesized mesoporous silica nanoparticles (MSNs) and modified them to develop a thermosensitive pesticide controlled release formulation (CRF). In this study, MSNs prepared by the sol–gel method were used as the core, poly (N‐IsoPropylAcrylaMide) [P (NIPAM‐MAA)] was used as the shell, and buprofezin (Bup) was loaded by adsorption. The prepared Bup@MSNs@P(NIPAM‐MAA) could effectively prevent the degradation of buprofezin under UV light and exhibited excellent adhesion to rice leaves. The bioassay results showed that the mortality of Nilaparvata lugens (Stål) treated by Bup@MSNs@P(NIPAM‐MAA) was positively correlated with temperature, resulting mainly from the change of release amount of buprofezin caused by temperature variation. Bup@MSNs@P(NIPAM‐MAA) had long duration (20 days) for controlling N. lugens, and did not hinder the growth of rice. Meanwhile, Bup@MSNs@P(NIPAM‐MAA) had low toxicity to zebrafish and human pneumonocyte BEAS‐2B cells. CONCLUSION This novel thermosensitive pesticide CRF can be applied widely to other insecticides, thus greatly promoting the development of intelligent pesticide formulations. © 2021 Society of Chemical Industry.

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Thermoresponsive polymer-encapsulated hollow mesoporous silica nanoparticles and their application in insecticide delivery

Cited by 141 publications

References 34 publications

Indoxacarb‐loaded fluorescent mesoporous silica nanoparticles for effective control of Plutella xylostella L. with decreased detoxification enzymes activities

Indoxacarb‐loaded fluorescent mesoporous silica nanoparticles for effective control of Plutella xylostella L. with decreased detoxification enzymes activities

Colorimetry-based System for Gaseous Carbon Dioxide Detection

Preparation of thermosensitive buprofezin‐loaded mesoporous silica nanoparticles by the sol–gel method and their application in pest control

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