Investigation of the bee-repellent properties of cotton fabrics treated with microencapsulated essential oils

Eyüpoğlu, Şeyda; Kut, Dilek; Girişgin, Oya; Eyüpoğlu, Can; Özüiçli, Mehmet; Dayıoğlu, Habip; Civan, Mustafa; Aydın, Levent

doi:10.1177/0040517518773370

Cited by 9 publications

(6 citation statements)

References 49 publications

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“…In contrast, DEET has a higher hydrophobicity, less ionic interaction force with polymeric walls resulting in the relatively smaller size of microcapsules. DEET-MCs and Picaridin-MCs synthesized by complex coacervation in the present work are smaller to those found with MCs loaded with DEET prepared from simple coacervation of solely gum Arabic, which resulted in a wide variety of microcapsule sizes observed (ranging from 1-68 µm) 19 .…”

Section: Characterization Of the Microcapsulescontrasting

confidence: 81%

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Controlled release of DEET and Picaridin mosquito repellents from microcapsules prepared by complex coacervation using gum Arabic and chitosan

Donchai¹,

Aldred²,

Junkum³

et al. 2022

Pharm Sci Asia

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Microcapsules (MCs) of mosquito repellents (DEET and Picaridin) were prepared by complex coacervation using gum Arabic and chitosan as wall materials. The resulting diameters of MCs were 2.35±0.76 µm for DEET and 4.26±1.77 µm for Picaridin, analyzed by optical microscopy. Spherical mononuclear-type MCs were also observed. The mean particle size of dried DEET-MC and Picaridin-MC was 182 µm and 140 µm, respectively, indicating agglomeration of MCs. Fourier transform infrared spectroscopy confirmed the encapsulation of repellents by the appearance of carbonyl (C=O) absorption bands in the associated spectra. Moreover, the microencapsulation efficiency was 60% and 73% for DEET and Picaridin, respectively, determined by Soxhlet extraction. From Thermogravimetric analysis, delay of DEET and Picaridin losses revealed encapsulation of DEET and Picaridin inside the MCs. In addition, the higher release rate of Picaridin compared to DEET under isothermal conditions was correlated with longer protective time relative to the free repellents, as demonstrated by the "arm in cage" test. The study concludes that microencapsulated DEET and Picaridin show high promise of functional textiles for mosquito repellency.

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Section: Characterization Of the Microcapsulescontrasting

confidence: 81%

“…The ME formulation of DEET showed repellent activity against Culex quinquefasciatus under laboratory conditions 18 . Eyupoglu et al 19 reported the microencapsulation of DEET via a simple coacervation method. DEET was encapsulated with gum Arabic wall material at a 1:5 ratio of wall to the core substance.…”

Section: Introductionmentioning

confidence: 99%

Controlled release of DEET and Picaridin mosquito repellents from microcapsules prepared by complex coacervation using gum Arabic and chitosan

Donchai¹,

Aldred²,

Junkum³

et al. 2022

Pharm Sci Asia

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“…Microencapsulated insecticides [57], acaricides [58], insect repellents [59,60] and combined bioinsecticide-insect repellent compounds [61,62] have been used in textiles to reduce volatility, prolong release and decrease washfastness of active compounds from textile substrates.…”

Section: Microcapsules In Functional Textile Productsmentioning

confidence: 99%

Microencapsulation for Functional Textile Coatings with Emphasis on Biodegradability—A Systematic Review

2021

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The review provides an overview of research findings on microencapsulation for functional textile coatings. Methods for the preparation of microcapsules in textiles include in situ and interfacial polymerization, simple and complex coacervation, molecular inclusion and solvent evaporation from emulsions. Binders play a crucial role in coating formulations. Acrylic and polyurethane binders are commonly used in textile finishing, while organic acids and catalysts can be used for chemical grafting as crosslinkers between microcapsules and cotton fibres. Most of the conventional coating processes can be used for microcapsule-containing coatings, provided that the properties of the microcapsules are appropriate. There are standardised test methods available to evaluate the characteristics and washfastness of coated textiles. Among the functional textiles, the field of environmentally friendly biodegradable textiles with microcapsules is still at an early stage of development. So far, some physicochemical and physical microencapsulation methods using natural polymers or biodegradable synthetic polymers have been applied to produce environmentally friendly antimicrobial, anti-inflammatory or fragranced textiles. Standardised test methods for evaluating the biodegradability of textile materials are available. The stability of biodegradable microcapsules and the durability of coatings during the use and care of textiles still present several challenges that offer many opportunities for further research.

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“…On the other side, the encapsulation of fragrances and aromas was pursued recently for the fabrication of “smart textiles” with additional functional properties [ 115 ], such as antibacterial, UV protection, moisturising and skin treatments, body temperature regulation and insect repellence, depending on the action of the encapsulated fragrances, aromas or EOs [ 116 , 117 , 118 , 119 ]. An example of encapsulation for UV protection in textiles is from the work of Chen et al, in which the one-step fabrication of cellulose/silica hybrid microcapsules via an emulsion solvent diffusion method was reported [ 120 ].…”

Section: Applications Of Micro-/nanoencapsulated Fragrances and Flmentioning

confidence: 99%

Encapsulation of Flavours and Fragrances into Polymeric Capsules and Cyclodextrins Inclusion Complexes: An Update

2020

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Flavours and fragrances are volatile compounds of large interest for different applications. Due to their high tendency of evaporation and, in most cases, poor chemical stability, these compounds need to be encapsulated for handling and industrial processing. Encapsulation, indeed, resulted in being effective at overcoming the main concerns related to volatile compound manipulation, and several industrial products contain flavours and fragrances in an encapsulated form for the final usage of customers. Although several organic or inorganic materials have been investigated for the production of coated micro- or nanosystems intended for the encapsulation of fragrances and flavours, polymeric coating, leading to the formation of micro- or nanocapsules with a core-shell architecture, as well as a molecular inclusion complexation with cyclodextrins, are still the most used. The present review aims to summarise the recent literature about the encapsulation of fragrances and flavours into polymeric micro- or nanocapsules or inclusion complexes with cyclodextrins, with a focus on methods for micro/nanoencapsulation and applications in the different technological fields, including the textile, cosmetic, food and paper industries.

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Investigation of the bee-repellent properties of cotton fabrics treated with microencapsulated essential oils

Cited by 9 publications

References 49 publications

Controlled release of DEET and Picaridin mosquito repellents from microcapsules prepared by complex coacervation using gum Arabic and chitosan

Controlled release of DEET and Picaridin mosquito repellents from microcapsules prepared by complex coacervation using gum Arabic and chitosan

Microencapsulation for Functional Textile Coatings with Emphasis on Biodegradability—A Systematic Review

Encapsulation of Flavours and Fragrances into Polymeric Capsules and Cyclodextrins Inclusion Complexes: An Update

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