Sep 2026· Nanoscale· Vol 18, pp. 21247-21257· 0 citations
Medicine
Abstract
As wildfires intensify due to climate change and expanding development in fire-prone areas of the world, there is a critical need for scalable, bioinspired flame-retardant technologies that can be applied across diverse substrates and environments. Here, we introduce DopaShield, a sprayable, bioinspired flame-retardant nanocoating composed of core-shell silica-polydopamine (SiO2@PDA) colloids. Applied via pneumatic spraying, DopaShield forms a conformal coating on flammable materials such as cotton and polyurethane (PU) foam without the need for curing or solvents. Upon flame exposure, it rapidly forms a cohesive char layer that suppresses ignition, prevents melt dripping, and insulates against heat transfer. Vertical flame tests reveal self-extinguishing behavior, while mechanical testing confirms that substrate integrity is maintained. Halogen-free, and metal-free, DopaShield offers a platform for fire protection in textiles, insulation, infrastructure, and vegetation. Its field-deployable, substrate-independent design makes it a promising solution for mitigating fire risks in wildfire-prone communities.
Polyurethane (PU) is a ubiquitous polymer in modern life across the world yet its inherent flammability and the severe toxicological impacts of traditional halogenated flame retardants (FRs) present critical safety and environmental challenges. This review comprehensively examines the framework shift from petrochemical...
A. Yuen, Daniel J. Davidson, Ho-Yin Tse et al.· Chemical Society Reviews· 0 citations
Direct ink writing with wood flour and cellulose-based biopolymeric inks offers a sustainable and scalable approach for manufacturing recyclable building and packaging materials with tailored architectures. However, these materials remain flammable, and their cellulose-rich composition makes them susceptible to smold...
P. Biswas, Charlotte Albunio, Giancarlo D'Orazio et al.· ACS Applied Polymer Material...· 0 citations
Flame retardants are crucial for operational safety in strategic sectors such as aerospace, automotive, and electronics. However, traditional flame retardants pose significant environmental and health risks due to toxic gas emissions. Consequently, sustainable "green" alternatives like huntite have gained increasing at...
B. Benli, Tülay Türk, M. Kangal· Physicochemical Problems of...· 0 citations
A bifunctional graphene based composite, THTPP@GD, was synthesized for concurrent flame retardancy and dye remediation, representing a significant advancement in textile protection and environmental applications. The material was synthesized through triazine polymerization, phosphate functionalization, and covalent i...
Ankita A. Kadam, Kaustubh M. Kadam, Pranay D. Tambe et al.· ACS Applied Engineering Mate...· 0 citations
Polylactic acid (PLA) is derived from renewable resources and can be composted under controlled industrial conditions, but its flammability and brittleness limit wider use. This study combined Ti3C2Tx MXene with surface terminations and an intumescent flame retardant (IFR) system based on ammonium polyphosphate and pen...
Li-Qun He, Wan Zhang, Jian-Ji Wang et al.· Polymers· 0 citations
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