Multi-pores Janus paper with unidirectional liquid transport property toward information encryption/decryption

Xu, Bing; Min, Shuqiang; Ding, Yanming; Chen, Hao; Zhu, Qixin

doi:10.1016/j.colsurfa.2023.131133

Cited by 10 publications

(2 citation statements)

References 29 publications

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“…These membranes demonstrate promising applications in diverse fields such as microfluidics, 10 substance collection, 11 intelligent wound dressings, 12 moisture-wicking fabrics, 13 and information decryption. 14 However, challenges arise regarding the cyclic stability of the interface adhesion capability of Janus membranes, which has been significantly influenced by the overlaying method of different hydrophilic–hydrophobic materials. Despite the effective accomplishment of specific tasks using hydrophilic–hydrophobic Janus membranes in previous studies, the weak interface bonding restricts its applications in numerous scenes.…”

Section: Introductionmentioning

confidence: 99%

Construction of a high breathability hydrophobic–hydrophilic Janus bilayer fiber structure through chemical treatment

Sun,

Zhou,

Wang

et al. 2024

New J. Chem.

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Section: Introductionmentioning

confidence: 99%

Construction of a high breathability hydrophobic–hydrophilic Janus bilayer fiber structure through chemical treatment

Sun,

Zhou,

Wang

et al. 2024

New J. Chem.

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“…In particular, truncated conical capillaries have been extensively studied as the simplest model to study the effect of geometrical gradient and, in particular, as the model of imbibition into porous substrates 5 . Also, they have been studied for their potential applications as micro-and nano-fluidic devices 12,16,[18][19][20][21][22][23] such as liquid diode 12,16,20,21 , ionic current rectifier 18 , pump 19 , Janus paper 22 , and water harvesting 23 . Carbon nanocone seems the most promising candidate of conical nano capillaries 23,24 .…”

Section: Introductionmentioning

confidence: 99%

Thermodynamics and hydrodynamics of spontaneous and forced imbibition in conical capillaries: A theoretical study of conical liquid diode

Iwamatsu

2022

Physics of Fluids

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Thermodynamics and hydrodynamics of spontaneous and forced imbibition of liquid into conical capillaries are studied to assess the feasibility of a conical liquid diode. The analytical formulas for the Laplace pressure and the critical Young's contact angle of the capillary for the onset of spontaneous imbibition are derived using the classical capillary model of thermodynamics. The critical contact angle below which the spontaneous imbibition can occur belongs to the hydrophilic region for the capillary with a diverging radius while it belongs to the hydrophobic region for the capillary with a converging radius. Thus, by choosing Young's contact angle between these two critical contact angles, only the spontaneous imbibition towards the converging radius occurs. Therefore, the capillary with a converging radius acts as the forward direction and that with a diverging radius as the reverse direction of diode. Even under the external applied pressure, the free-energy landscape implies that the forced imbibition occurs only to the forward direction by tuning the applied pressure. Furthermore, the scaling rule of the time scale of imbibition is derived by assuming Hagen-Poiseuille steady flow. Again, the time scale of forward direction is advantageous compared to the reverse direction when the imbibition to both direction is possible. Therefore, our theoretical analysis shows that a conical capillary acts as a liquid diode.

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3D Wetting Gradient Janus Sports Bras for Efficient Sweat Removal: A Strategy to Improve Women's Sports Comfort and Health

Min,

Xu,

Huang

et al. 2024

Small

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Developing Janus fabrics with excellent one‐way sweat transport capacity is an attractive way for providing comfort sensation and protecting the health during exercise. In this work, a 3D wetting gradient Janus fabric (3DWGJF) is first proposed to address the issue of excessive sweat accumulation in women's breasts, followed by integration with a sponge pad to form a 3D wetting gradient Janus sports bra (3DWGJSB). The 3D wetting gradient enables the prepared fabric to control the horizontal migration of sweat in one‐way mode (x/y directions) and then unidirectionally penetrate downward (z direction), finally keeping the water content on the inner side of 3DWGJF (skin side) at ≈0%. In addition, the prepared 3DWGJF has good water vapor transmittance rate (WVTR: 0.0409 g cm−2 h−1) and an excellent water evaporation rate (0.4704 g h−1). Due to the high adhesion of transfer prints to the fabrics and their excellent mechanical properties, the 3DWGJF is remarkably durable and capable of withstanding over 500 laundering cycles and 400 abrasion cycles. This work may inspire the design and fabrication of next‐generation moisture management fabrics with an effective sweat‐removal function for women's health.

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Multi-pores Janus paper with unidirectional liquid transport property toward information encryption/decryption

Cited by 10 publications

References 29 publications

Construction of a high breathability hydrophobic–hydrophilic Janus bilayer fiber structure through chemical treatment

Construction of a high breathability hydrophobic–hydrophilic Janus bilayer fiber structure through chemical treatment

Thermodynamics and hydrodynamics of spontaneous and forced imbibition in conical capillaries: A theoretical study of conical liquid diode

3D Wetting Gradient Janus Sports Bras for Efficient Sweat Removal: A Strategy to Improve Women's Sports Comfort and Health

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