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Ice formation and accretion affect residential and commercial activities. Icephobic coatings decrease the ice adhesion strength (τ) to less than 100 kPa. However, rare icephobic coatings remove the ice under the action of gravity or natural winds. The icephobicity of such coatings depends on materials with low interfacial toughness. We develop durable candle soot icephobic coating with RTV-1 as a low-modulus binding material. Heterogeneous nucleation on 20-40 nm candle soot particles and their fracture mechanism are discussed. The developed coating always shows durable Cassie-Baxter superhydrophobic state with low ice adhesion (18 kPa) and maintains the τ value of about 25 kPa after severe mechanical abrasion, 30 liquid nitrogen/water cycles, 100 frosting/defrosting cycles, 100 icing/deicing cycles, acid/base exposure, under UV light, and exposure to natural freezing rain in Hangzhou. In addition, the proposed technique is time-efficient, inexpensive, and suitable for large-scale applications.
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http://dx.doi.org/10.1021/acsami.9b09819 | DOI Listing |
Langmuir
September 2025
Institute of Applied Mechanics, National Taiwan University, No.1, Sec. 4, Roosevelt Rd., Da'an Dist., Taipei 106, Taiwan (R.O.C.).
We present a novel dual-functional surface design that strategically integrates superhydrophobic and lubricant-infused surface technologies to achieve switchable liquid repellency with significantly enhanced durability and self-healing capabilities. By precisely controlling the amount of silicone oil infused─quantified as surface loading─into laser-induced graphene structures on polyimide substrates, we demonstrate a controlled transition between superhydrophobic and lubricant-infused states. This hybrid approach effectively addresses the critical challenges of both technologies: the mechanical vulnerability of superhydrophobic surfaces and lubricant depletion issues in lubricant-infused surfaces.
View Article and Find Full Text PDFNanoscale
August 2025
Hunan Key Laboratory of Nanophotonic and Devices, School of Physics, Central South University, Changsha, 410083, China.
Photothermal conversion materials can efficiently convert solar energy into directly usable heat energy, thereby reducing carbon emissions. However, most photothermal conversion materials are complex to prepare and have a long cycle, and their photothermal performance is not ideal. These problems limit their practical application.
View Article and Find Full Text PDFSci Adv
August 2025
Department of Material Science and Engineering, University of California, Los Angeles, Los Angeles, CA, USA.
Photothermal self-excited actuators, offering untethered power and control, are promising for autonomous soft robots. While most efforts focus on enhancing heat absorption for greater actuation performance, managing heat dissipation remains underexplored, which becomes critical in underwater environments with rapid convective cooling. Inspired by amphibious mammals that use air plastrons for thermal insulation, we develop a strategy incorporating superhydrophobic candle soot coating to trap air on photothermal liquid crystal elastomer (LCE) actuators.
View Article and Find Full Text PDFJ Colloid Interface Sci
August 2025
State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, PR China. Electronic address:
Bacterial biofilm-associated infections pose a significant challenge in biomedical fields, especially in the context of medical devices and implants, where conventional treatments often fail to combat mature biofilms. To overcome this limitation, an antibiofilm coating was developed, incorporating three functional components: carbon nanoparticles derived from candle soot (CS), hydrophilic and pH-responsive copolymer brushes of 2-hydroxyethyl methacrylate (HEMA) and 3-(acrylamido)-phenylboronic acid (APBA), and natural quorum sensing inhibitors (QSIs). The carbon nanostructure of the CS substrate provides inherent photothermal conversion properties, while its high surface area facilitates efficient chemical functionalization.
View Article and Find Full Text PDFACS Appl Mater Interfaces
June 2025
Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of Education, School of Chemistry, Beihang University (BUAA), Beijing 100191, P. R. China.
A bioinspired icephobic surface featuring mosquito-eye-like micronanostructures (IPMM) is designed through candle soot self-assembly on a microspine array surface. The IPMM exhibits remarkable superhydrophobicity in cold temperatures, with low adhesion forces of ∼25.4 μN at a low temperature of -5 °C and impressive liquid repellency.
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