Fabrication of high aspect ratio silicon micro-/nano-pore arrays and surface modification aiming at long lifetime liquid-infused-type self-cleaning function

Phan, Nguyen; Moronuki, Nobuyuki

doi:10.1299/jamdsm.2017jamdsm0013

Cited by 6 publications

(4 citation statements)

References 27 publications

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“…These unique features potentially address the drawback of the superhydrophobic surface (e.g., depletion of air cushion). Benefiting from these excellent properties, LISs are used to exploit different functions in a wide range of fields, such as anti-biofouling [ 2 , 3 , 4 , 5 , 6 ], corrosion resistance [ 7 , 8 , 9 , 10 , 11 , 12 ], ice/frost delaying [ 13 , 14 , 15 , 16 , 17 ], self-cleaning [ 18 , 19 , 20 , 21 , 22 ], water harvesting [ 23 , 24 , 25 ], drag reduction [ 26 , 27 , 28 , 29 , 30 , 31 ], heat transfer [ 32 , 33 , 34 ]. Some recent works give an overview of LIS’s overall development ranging from fundamental fabrication to various applications [ 35 , 36 ].…”

Section: Introductionmentioning

confidence: 99%

A Review of Smart Lubricant-Infused Surfaces for Droplet Manipulation

Hao

2021

Nanomaterials

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The nepenthes-inspired lubricant-infused surface (LIS) is emerging as a novel repellent surface with self-healing, self-cleaning, pressure stability and ultra-slippery properties. Recently, stimuli-responsive materials to construct a smart LIS have broadened the application of LIS for droplet manipulation, showing great promise in microfluidics. This review mainly focuses on the recent developments towards the droplet manipulation on LIS with different mechanisms induced by various external stimuli, including thermo, light, electric, magnetism, and mechanical force. First, the droplet condition on LIS, determined by the properties of the droplet, the lubricant and substrate, is illustrated. Droplet manipulation via altering the droplet regime realized by different mechanisms, such as varying slipperiness, electrostatic force and wettability, is discussed. Moreover, some applications on droplet manipulation employed in various filed, including microreactors, microfluidics, etc., are also presented. Finally, a summary of this work and possible future research directions for the transport of droplets on smart LIS are outlined to promote the development of this field.

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Section: Introductionmentioning

confidence: 99%

A Review of Smart Lubricant-Infused Surfaces for Droplet Manipulation

Hao

2021

Nanomaterials

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“…The silicophilic functionalized property can be realized via grafting a thin, self-assembling layer of OTS. It’s few nanometer thickness, strong bond (siloxane bond) with the substrate [ 17 , 37 ] and the schematic of grafting process, is shown in Figure 3 a. Oxygen plasma treatment for 10 min with RF power 100 W, pressure 100 μbar and flow rate 20 sccm after the substrate was thoroughly cleaned, was used to increase the hydroxyl content of the surface; in order to facilitate the formation of OTS self-assembly in the next step.…”

Section: Methodsmentioning

confidence: 99%

“…Based on the current research results, there are two main ways to alleviate tissue sticking: chemical approaches and physical methods. Chemical approaches include adopting low surface energy alloy coating or polymer coating, such as copper-doped diamond-like carbon [ 10 , 11 , 12 , 13 ], CrN [ 14 ], TiO 2 [ 6 , 15 , 16 , 17 ], poly(l-lactic acid)-polyethylene glycol [ 18 ], polygalacturonic acid-1-ethyl-3-(3-dimethylaminopropyl) carbodiimide [ 19 ], polylactide–polyethylene glycol tri-block copolymer [ 20 ]. Physical methods mainly refer to the design and fabrication of micro/nanostructures on the surface of scalpels [ 16 , 21 ].…”

Section: Introductionmentioning

confidence: 99%

“…These wettability gradient microstructures are fabricated via a photolithography-assisted electrolytic etching process, and then a micro channel is generated by a laser process. Silicon oil is chosen as the lubricant for its outstanding biocompatibility and high-temperature resistance [ 17 , 37 ]. A thin layer of octadecyltrichlorosilane (OTS, CH 3 (CH 2 ) 16 CH 2 SiCl 3 ), which has a few nanometer thickness and strong siloxane bond, is grafted on the wettability gradient’s surface to strongly maintain the lubricant.…”

Section: Introductionmentioning

confidence: 99%

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Self-Lubricanting Slippery Surface with Wettability Gradients for Anti-Sticking of Electrosurgical Scalpel

et al. 2018

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Soft tissue sticking on electrosurgical scalpels in minimally invasive surgery can increase the difficulty of operation and easily lead to medical malpractice. It is significant to develop new methods for anti-sticking of soft tissue on electrosurgical scalpels. Based on the characteristics of biomimetic ultra-slippery surface, a self-lubricating slippery surface with wettability gradients on electrosurgical scalpel was designed and fabricated. Non-uniformly distributed cylindrical micro pillars, which constitute the wettability gradients, were prepared by an electrolytic etching process and the theoretic of the spontaneous liquid spreading process was analyzed. The silicophilic property of wettability gradients surface was modified by octadecyltrichlorosilane (OTS) self-assembling coat with biocompatible liquid lubricant dimethyl silicone oil. The contact angle of gradient’s surface at different temperatures was measured. The transportation behaviors of both water and dimethyl silicone oil on the wettability gradient’s surface were investigated; the results illustrate that the wettability gradient’s slippery surface can successfully self-lubricate from regions with low pillar density to regions with high pillar density, ascribed to the unbalanced Young’s force. The anti-sticking capability of the electrosurgical scalpel with self-lubricating slippery surface was tested. Both the adhesion force and adhesion mass under different cycles were calculated. The results suggest that the as-prepared slippery surface has excellent anti-sticking ability associated with better durability.

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Bioinspired rapid self-replenishing liquid-infused surfaces for stable anti-adhesion of electrosurgical electrodes

Sun

et al. 2023

Chemical Engineering Journal

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Fabrication of high aspect ratio silicon micro-/nano-pore arrays and surface modification aiming at long lifetime liquid-infused-type self-cleaning function

Cited by 6 publications

References 27 publications

A Review of Smart Lubricant-Infused Surfaces for Droplet Manipulation

A Review of Smart Lubricant-Infused Surfaces for Droplet Manipulation

Self-Lubricanting Slippery Surface with Wettability Gradients for Anti-Sticking of Electrosurgical Scalpel

Bioinspired rapid self-replenishing liquid-infused surfaces for stable anti-adhesion of electrosurgical electrodes

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