Fig. 2. Temperature profile and contrast with Janus NP heating under the steady-state. (A) Normalized temperature rise (ΔT) with Janus nanoparticle (JNP) heating. The JNP size (rJNP) is 15 nm, and the polar angle for the heterogeneous coating (θ0) is π/2. (B) 2D map of ζs.s. in terms of the two ITRs, R1, and R2. Dotted lines are contour lines for ζs.s.. The Kapitza number (Ka) is defined as: 
, where R is the interfacial thermal resistance, k is the thermal conductivity of the media, rJNP is the radius of JNP.
