Electrospraying route to nanotechnology: An overview

Jaworek, A.; Sobczyk, Arkadiusz

doi:10.1016/j.elstat.2007.10.001

Cited by 855 publications

(565 citation statements)

References 253 publications

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“…With the increase of applied voltage, liquid ejected from capillary formed a jet, either in the oscillating-jet mode, precession mode or cone-jet mode (Jaworek and Sobczyk, 2008). In the present paper, due to larger surface tension, the jet was issued from the capillary end with intermittency ( Fig.…”

Section: Jet Modementioning

confidence: 73%

“…It offers several benefits compared to other atomization methods where trajectory and size of the fine drops could be controlled by varying the applied voltage and adjusting the liquid flow rate (Chen et al, 1999;Wilhelm et al, 2003;Mei and Chen, 2008).As a result, electro-spraying has been widely used in medical protein production (Gomez et al, 1998), painting and printing (Lee et al, 2013), film coating (Miao et al, 2002), fuel injection (Waits et al, 2010;Gan et al, 2015Gan et al, , 2016, micro-and nano-particles generation (Jaworek and Sobczyk, 2008;Gañán-Calvo et al, 2013), and particle collection (Kim et al, 2010;Jaworek et al, 2013;Chen et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Experimental Study on Repetition Frequency of Drop/Jet Movement in Electro-Spraying of Deionized Water

Wang

Tian

Xia

et al. 2018

Aerosol Air Qual. Res.

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The electro-spraying process can be regular and periodic, consisting of cyclical phases of initiation (meniscus, drop, and/or jet), pulsation, deformation and separation. This paper presents an experimental study on the repetition frequency of drop and/or jet ejection from the capillary end with various spraying modes during an electro-spraying process of deionized (DI) water. The influence of operating parameters such as applied voltage, liquid flow rate, electrical conductivity (DI) and the number of emitters is considered. The time evolution of drop and/or jet initiation, pulsation, deformation and separation from the capillary tip or meniscus was captured and analyzed in detail in different spraying modes. The repetition frequency was calculated offline based on the time-resolved images captured by a high-speed camera and was found to be highly affected by the electrical strength and dependent on the spraying mode. This frequency firstly increased and then decreased with an increase in applied voltage. Peak frequency and the applied voltage were related and both correlated to the liquid flow rate. The repetition frequency was very sensitive to the applied voltage at a low volume flow rate. Particular attention was given to the electro-spraying characteristics of single, double and triple emitters. The similarities and differences are discussed.

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Section: Jet Modementioning

confidence: 73%

Section: Introductionmentioning

confidence: 99%

Experimental Study on Repetition Frequency of Drop/Jet Movement in Electro-Spraying of Deionized Water

Wang

Tian

Xia

et al. 2018

Aerosol Air Qual. Res.

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“…The droplets may be extremely small, of the order of nanometers, and the charge and size of the droplets can be controlled by adjusting the flow rate and the voltage applied to the nozzle. 17 This method is applied in many industrial processes as a tool for the production of micro-and nano emulsions and micro-and nano capsules. Due to its properties, is considered as an effective route to nanotechnology.…”

Section: Figurementioning

confidence: 99%

Functional Textiles for Skin Care by Active Substance Encapsulation

Muñoz

Gonzalez

Martinez

et al. 2017

JTEFT

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Cosmetotextiles are novel textiles which contain carriers with active and cosmetic substances, these carriers, generally by polymeric nature, release their active compounds when in contact with the human body. The aim of this mini review work is to report the new developments in cosmetic textiles, focusing in the obtaining of microcapsules containing skin care substances, physically or chemically bound to the fiber surface. The selection of the encapsulation technique and shell material depends on the final application of the product, considering physical and chemical stability, concentration, required particle size, release mechanism and manufacturing costs. This review discusses the most commonly used microencapsulation processes as: interfacial polymerization, In Situ polymerization, coacervation and phase separation, spray drying and electro spraying. Microcapsules can be applied to the textiles by different methods: padding, coating, spraying or immersion methods. All these methods are also briefly explained here. To the end of this article, some commercial products are listed. Keywords

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“…The distinct advantages of this technique with the use of suspensions include its capability of forming fine and controllable deposition products and less risk of nozzle blockage during processing which is frequently observed with other droplet forming routes such as piezo-head drive ink-jet printing [25]. Moreover, droplets/relics formed by EHDA are charged, which can self-disperse in space, resulting in the absence of droplet coagulation [26]. This technique has shown great potential in recent years and has been introduced to produce nano-particles [27], deposit thin films [28] and direct writing micro-structures in bioengineering and chemical engineering [29,30].…”

Section: Introductionmentioning

confidence: 99%