Triboelectrification

Schein, L. B.; Castle, G.S.P.; Lacks, Daniel J.

doi:10.1002/047134608x.w3233.pub2

Cited by 4 publications

(7 citation statements)

References 32 publications

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“…“Triboelectrification” is a term that has been used to describe this phenomenon. 31 However, despite the meaning of “tribo” (“rubbing”, in Greek), rubbing (friction) is not necessary for triboelectrification: perhaps the term “contact charging” is more appropriate than “triboelectrification” 32 . The most probable mechanism for contact charging is electron transfer; however, other mechanisms, such as the transfer of surface ions, might also play a role.…”

Section: The Modelmentioning

confidence: 99%

“…The most probable mechanism for contact charging is electron transfer; however, other mechanisms, such as the transfer of surface ions, might also play a role. 31 32 While friction is not specifically required, it increases the contact charging efficacy. 31 32 Mechanical stress is another factor that can increase the efficacy of contact charging.…”

Section: The Modelmentioning

confidence: 99%

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The Electrostatic Model of Homeopathy: The Mechanism of Physicochemical Activities of Homeopathic Medicines

Shahabi

Borneman²

2021

Homeopathy

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This paper attempts to propose a model, called the electrostatic model of homeopathy, to explain a mechanism for the physicochemical activities of highly diluted homeopathic medicines (HMs). According to this proposed model, the source of HMs' action is dipole orientations as electrostatic imprints of the original molecules carried by diluent molecules (such as sugar molecules) or potentization-induced aqueous nanostructures. The nanoscale domains' contact charging and dielectric hysteresis play critical roles in the aqueous nanostructures' or sugar molecules' acquisition of the original molecules' dipole orientations. The mechanical stress induced by dynamization (vigorous agitation or trituration) is a crucial factor that facilitates these phenomena. After dynamization is completed, the transferred charges revert to their previous positions but, due to dielectric hysteresis, they leave a remnant polarization on the aqueous nanostructures or sugar molecules' nanoscale domains. This causes some nanoscale domains of the aqueous nanostructures or sugar molecules to obtain the original substance molecules' dipole orientations. A highly diluted HM may have no molecule of the original substance, but the aqueous nanostructures or sugar molecules may contain the original substance's dipole orientations. Therefore, HMs can precisely aim at the biological targets of the original substance molecules and electrostatically interact with them as mild stimuli.

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Section: The Modelmentioning

confidence: 99%

Section: The Modelmentioning

confidence: 99%

The Electrostatic Model of Homeopathy: The Mechanism of Physicochemical Activities of Homeopathic Medicines

Shahabi

Borneman²

2021

Homeopathy

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“…This is attributed to the triboelectri cation generated by the insect's body surface which attracted the nanoparticles (McGonigle et al 2002;Stadler et al 2017). Triboelectri cation is an electrostatic charging exchange between two surfaces when brought into contact (Schein et al 2014).…”

Section: Determination Of Temephos Amount Impregnated On Kcnf Releasmentioning

confidence: 99%

Application of Renewable Kenaf Cellulose Nanofiber as a Temephos Nanocarrier for Control of Aedes Aegypti (Diptera: Culicidae) Larvae

Pengiran

Kamaldin

Fen

et al. 2021

Preprint

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Larviciding is an effective control method in managing mosquito-borne diseases. However, current carrier materials used in larvicides formulation raised environmental concerns due to its non-renewable origin. Herein, our study aimed to evaluate the application of the renewable source kenaf cellulose nanofiber (KCNF) impregnated with temephos for the control of Aedes aegypti mosquito larvae. The morphology of KCNF+T was examined using field emission scanning electron microscope (FESEM) and transmission electron microscopy (TEM) while the quantity of temephos impregnated, released, and retained on the fibers upon dispersion in water were determined using high performance liquid chromatography (HPLC). Subsequently, the bioefficacy of the KCNF+T was evaluated against Ae. aegypti larvae. The FESEM and TEM micrograph verified the presence of temephos on the KCNF after the impregnation. HPLC analysis showed the amount of temephos impregnated on KCNF was 97 % of the 0.1 mg temephos. Upon dispersion in water, KCNF+T released 53% temephos and the retention of temephos on KCNF+T gradually decreased to 30, 17 and 7 % on the first, third and fifth month, respectively. The exposure of Ae. aegypti larvae to KCNF+T at concentration 0.006 to 0.01 mg/L was effective at 17 - 25 folds in killing Ae. aegypti larvae compared to temephos without KCNF. Microscopy examination revealed accumulation of the KCNF on the larval appendages. Overall, our study demonstrated that KCNF made from renewable source is an effective nanocarrier of temephos for the control of Ae. aegypti mosquito larvae.

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“…This attachment is due to the triboelectrification generated by the insect's body surface attracted the nanofibres (McGonigle et al, 2002;Stadler et al, 2017). Triboelectrification is an electrostatic charging exchange between two surfaces when brought into contact (Schein et al, 2014). Attachment of the KCNF+T on the area surrounding the larvae body may result in transcuticular delivery and eventually, penetration of the temephos through other than gut delivery since there was no presence of KCNF in the digestive tract of the larvae (Howse & Underwood, 2000;Phanse et al, 2015).…”

Section: Larvicidal Bioefficacy Of Kcnf+t Against a Aegypti Larvamentioning

confidence: 99%

Larvicidal efficacy of temephos impregnated onto kenaf cellulose nanofibre to control Aedes aegypti (Diptera: Culicidae) larvae

2021

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Larviciding is an effective control method in managing mosquito-borne diseases. However, most of the current larvicide formulations have raised environmental concerns due to the presence of non-biodegradable inert or carrier materials. Therefore, the utilisation of biodegradable natural cellulosic fibres has created much attention. This study aims to evaluate the application of biodegradable kenaf cellulose nanofibre (KCNF) in larvicide formulation where the larvicide, namely temephos, is impregnated onto the fibre matrix (KCNF+T). The bioefficacy of the formulation was evaluated against Aedes aegypti (A. aegypti) mosquito larvae. The presence of the temephos on the KCNF was evaluated through micromorphological analysis using a field emission scanning electron microscope (FESEM) and a transmission electron microscope (TEM), while the quantity of temephos impregnated, released, and retained on the fibres upon dispersion in water were determined using high performance liquid chromatography (HPLC). It was observed that 97% of the temephos (0.1 mg) were impregnated on the KCNF. Upon dispersion in water, 53% of the temephos were released from the KCNF+T and the retention of temephos on the KCNF+T gradually decreased to 30%, 17%, and 7% on the first, third, and fifth month, respectively. Exposure of the A. aegypti larvae to the KCNF+T at concentrations ranging between 0.006 to 0.01 mg/L was effective in killing A. aegypti larvae at 17-25 folds as compared to using the temephos without KCNF. Microscopic examination revealed the accumulation of the KCNF on the larval appendages.In conclusion, this study demonstrated that the utilisation of KCNF in pesticide formulation is an effective way of delivering the temephos to control A. aegypti mosquito larvae.

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Triboelectrification

Cited by 4 publications

References 32 publications

The Electrostatic Model of Homeopathy: The Mechanism of Physicochemical Activities of Homeopathic Medicines

The Electrostatic Model of Homeopathy: The Mechanism of Physicochemical Activities of Homeopathic Medicines

Application of Renewable Kenaf Cellulose Nanofiber as a Temephos Nanocarrier for Control of Aedes Aegypti (Diptera: Culicidae) Larvae

Larvicidal efficacy of temephos impregnated onto kenaf cellulose nanofibre to control Aedes aegypti (Diptera: Culicidae) larvae

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