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It is worth noting that the multifunctional surfaces are highly desirable for water collection applications on droplet nucleation and removal. Although the superhydrophobic surfaces (SHSs) is beneficial to water collection due to easily shed liquid drops and favorable heat-transfer performance, the pinned condensed water droplets within the rough structure and a high thermodynamic energy barrier for nucleation severely limit the water collection efficiency. Recently, the liquid infused surfaces are significant for condensation heat transfer and droplet nucleation but have poor durability. In this work, under the UV light, polydimethylsiloxane was grafting onto ZnO nanorods (through Zn-O-Si bond) and the residual unbonded silicone oil was used as lubricant, so that form a hierarchical lubricant impregnated surfaces (LISs). Due to high viscosity of silicone oil and strong intermolecular force between silicone oil and PDMS brush, the lubricant can be firmly fixed in micro-nanosrtucture to form durable lubricant layer. For example, the LISs have outstanding properties for boiling water repellency, omniphobicity of various liquid and hot water resistant. Under a self-made hot vapor collection device, the surface can maintain good water collection capacity and there is no obvious change in the lubrication layer. After exposing in sunlight for 7 days and suffering 25 times heating/cooling cycles (heating at 150℃), the LISs exhibit excellent water collection and repairability. After measurement, the oil content in the water is 43mg/L, which is harmless to the human body. Via the high-water collection efficiency and durable lubricant layer, the LISs can be applied on a large scale in the water collection industry.
This article was published in the following journal.
Name: ACS applied materials & interfaces
A fundamental limitation of liquids on many surfaces is their contact line pinning. This limitation can be overcome by infusing a non-volatile and immiscible liquid or lubricant into texture or roughn...
Recently, various types of porous surfaces have been demonstrated for lubricant (e.g., oil) impregnated omniphobic surfaces. However, the retention of the lubricating liquid within the porous layer an...
Fabrication of biocompatible super stable lubricant-immobilized slippery surfaces by grafting a polydimethylsiloxane brush: excellent boiling water resistance, hot liquid repellency and long-term slippery stability.
Slippery liquid-infused surfaces that imitate the microstructure of carnivorous Nepenthes have attracted widespread attention due to their excellent liquid and various organic solution repellency, ass...
We explore the use of poly(N-isopropylacrylamide) (PNIPAm)-grafted carbon microspheres (CM) dispersed in water as a stimulus-responsive lubricant. A critical concentration between 3-5 mg/ml of 300 nm ...
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The purpose of this study is to compare the comfort and blurriness of an investigational lubricant eye drop with a marketed lubricant eye gel.
Subjects in the study were randomized to a treatment group using Chlorhexidine cloths or a standard-of-care group who only had a bath with antibacterial soap and water. Both groups receive...
This is a prospective, controlled; crossover study of daily bathing with no-rinse, 2% chlorhexidine gluconate (CHG) impregnated washcloths versus bathing with water/soap or water according...
The objective of this study is to evaluate the safety and efficacy of exaggerated use of Lubricant Eye Drops in a population of normal subjects by measuring corneal epithelial permeability...
To evaluate the acute comfort and blurring profile between two artificial tears products in dry eye patients
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A major group of polyphyletic organisms of extremely varied morphology and physiology, mostly photosynthetic, but distinguished from plants by their complex form of sexual reproduction. They are freshwater and marine, terrestrial and subterranean; some are neustonic (living at the interface of water and the atmosphere). They live in various protozoa and within other plants. They live also in soil and on soil surfaces, on long-persistent snows, and in Antarctic rocks. Thermophilic algae inhabit hot springs. (From Webster, 3d ed; from Bold & Wynne, Introduction to the Algae, 2d ed, pp1-6)
Fluoride-releasing restorative materials made by the sintering of metal (usually silver) particles to glass ionomer powder. Glass ionomers are fluoride-releasing cements that are not very durable. Sintering of the metal particles is a means of improving those physical properties that will make the glass ionomer cement more durable.
A polychlorinated compound used for controlling a variety of insects. It is practically water-insoluble, but readily adheres to clay particles and persists in soil and water for several years. Its mode of action involves repetitive nerve-discharges positively correlated to increase in temperature. This compound is extremely toxic to most fish. (From Comp Biochem Physiol (C) 1993 Jul;105(3):347-61)