Green detergent made of halloysite nanotubes

Huang

ACS Appl. Mater. Interfaces

et al. 2022

Self Cite

The incorporation of green and sustainable nanomaterials in pesticide formation is an effective method to lower the use of conventional pesticides without adverse effects on productivity. Here pesticide Pickering emulsions stabilized by halloysite nanotubes (HNTs) were developed for low cost, less environmental pollution, low toxic effects, and better emulsion stability. HNTs were added to chlorantraniliprole (CAP) emulsions, and good stability was exhibited due to the adsorption and aggregation of HNTs at the interface of CAP oil droplets, forming a three-dimensional network structure that prevented the emulsion from aggregation. In addition, Spodoptera frugiperda was used as a pest model and corn was used as a plant model to explore the washout resistance, insecticidal effect, and biological safety of HNTs–CAP emulsion. After spraying emulsion on corn leaves and washing for 10 min, the HNTs–CAP emulsion (5 wt % HNTs) pesticide residue rate was 2.7 times that of pristine CAP emulsion. When the HNT dispersion concentration was 2 wt %, the larva mortality was 83%, which was 1.5 times that of the CAP emulsion group. These results demonstrated that HNTs–CAP emulsion showed good foliar adhesion, rainfall resistance, and insecticidal effect. The tubular clay-based nanopesticide formulations show potential applications in the control of crop pests with modern agriculture technology.

Section: Resultsmentioning

confidence: 99%

Section: Pharmacodynamic Test Of Hnts−cap Emulsionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Halloysite Nanotube-Based Pesticide Formulations with Enhanced Rain Erosion Resistance, Foliar Adhesion, and Insecticidal Effect

Huang

ACS Appl. Mater. Interfaces

et al. 2022

Self Cite

“…It was found that HNTs based Pickering emulsions in the gel-like phase are able to remove the hydrocarbon species and the efficiency increases as a function of the contact time between the solid substrate and the cleaning formulation. [187,189] In particular, the marble surface is free of and c) specific targeting effect of membrane-coated HNT-PSSICG nanocarrier on cell membrane and cell disruption under NIR light irradiation. Reproduced with permission.…”

Section: Hnts Based Pickering Emulsions For Cultural Heritagementioning

confidence: 99%

Pickering Emulsions Stabilized by Halloysite Nanotubes: From General Aspects to Technological Applications

Lisuzzo

Cavallaro

Milioto

et al. 2022

Adv Materials Inter

Besides surfactants, which decrease the interfacial tension between two immiscible liquids, also interfacially active particles can successfully stabilize an emulsion system by attaching at the liquid–liquid interface. The preparation of the resulting Pickering emulsions has been so far investigated starting from the study of the interactions arising between the dispersed droplets and the stabilizers, till the application of these systems in a wide range of different fields. This work is intended to provide an overall overview about the development of Pickering emulsions by considering the most general aspects and scanning the diverse types of solid stabilizers. Among them, Halloysite nanotubes play a major role as naturally derived clay with emulsifying capability owing to their cheap, abundant, green and biocompatible properties. Therefore, the design of Halloysite stabilized Pickering emulsions is the main content of this review, which will survey the role of nanotubes in providing colloidal stability and will comprehensively sum up the use of these particles in technological and industrial purposes: from environmental to catalytic, from health to cultural heritage related applications.

“…Emulsion, a uniformly mixed dispersion system consisting of two immiscible phases, has a wide range of applications in the fields of food science, , personal care, biomedicine, and sewage treatment . However, the dispersed oils in the continuous aqueous phase as tiny droplets drastically increases the interfacial area, resulting in thermodynamic instability of the whole system .…”

Section: Introductionmentioning

confidence: 99%

Hydrophobic Halloysite Nanotubes via Ball Milling for Stable Pickering Emulsions: Implications for Food Preservation

Tan

Zhao

Zhou

2022

ACS Appl. Nano Mater.

Self Cite

Modification and functionalization of nanomaterials by a facile way are critical for their practical application in many areas. In this work, hydrophobic modified halloysite nanotubes (mHNTs) were efficiently prepared by a ball milling method; then, the mHNTs were used to stabilize oil/water emulsions. Polytetrafluoroethylene in the wall of milling jars adhered to the surfaces of HNTs during the milling process, which changed the hydrophilicity and electrical properties of HNTs. The milling process reduced the length of the tubes and promoted the transformation of the 1D tubes into 2D sheets morphology. mHNTs were then employed as solid particles on the oil–water interface for preparing Pickering emulsions. The morphology and rheological behavior indicated that the oil/water emulsion stability improved with the increasing mHNT concentration and milling time. SEM images showed that the emulsion network became denser with the increasing milling time of mHNTs, which led to the increased stability of the emulsions. In addition, the antibacterial properties of HNT–cassia oil emulsions were investigated. Owing to the uniform distribution and slow release of cassia oil, mHNT-stabilized emulsions exhibited improved antibacterial performance. This work demonstrated that hydrophobic HNTs prepared by ball-milling method show proper wettability, controlled delivery behavior, and scaling-up ability, which have promising applications in Pickering emulsions and food preservation.