## 1 Introduction  
The replication and imitation of nature have led to our understanding and development of many technologies. This type of research has come to be known as biomimicy, as proposals mimic a certain behavior or property of a natural material, creature or phenomenon. Among these, the engineering of surfaces based on certain animals, such as the Namibia scarab beetle, has received growing interest [1; 2; 3; 4; 5; 6]. This small creature manifests a unique, tailor-made shell with hydrophobic and hydrophilic properties that allow it to survive in a harsh, dry and water-scar encounter [1; 2]. The biomimicy of this creature and other living things with similar attributes has allowed for the development and engineering of surfaces with dewetting, self-cleaning, water-harvesting and superhydrophobic properties [2; 6; 7; 8; 9; 10; 11]. The creation of such surfaces or the treatment of surfaces for the desired properties is a growing field. There are many options of materials and particles capable of being implemented for their corresponding creation [9; 10; 12; 13; 14; 15; 16; 17; 18; 19; 20], among which, SiO\({}_{2}\) nanoparticles (NPs) have been consistently implemented due to their intrinsic properties [12; 21; 22; 23; 24; 25; 26; 27]. Specifically, SiO\({}_{2}\) NPs have been extensively investigated because of their capability to manifest superhydrophobic (SHPho) and hydrophilic (HPhi) properties, which are desirable for the engineering of hybrid surfaces [16; 21; 23; 24; 25; 26; 27; 28]. Additionally, SiO\({}_{2}\) NPs have been demonstrated to possesses excellent adherence to surfaces, such as glass, silane discs, gold (Au), platinum (Pt) and organic substrates (textiles and wood), by being modifiedor treated with other molecules, such as polyacrylate (PAA), polymethylacrylate (PMA), polydimethylsiloxane (PDMS) and octadecyltrichlorosilane (OTS) [14; 16; 23; 24; 25; 27; 28]. OTS has become increasingly used for its accessibility, consistent results and facile methods for treatment, as well as it being capable of inducing SHPho properties in naturally hydrophilic SiO\({}_{2}\) NPs, exhibiting contact angles (CAs) over 150\({}^{\circ}\)[24; 25; 26; 29; 30; 31; 32; 33]. In addition, the creation of such surfaces can be achieved through different experimental methodologies, such as dip coating and drop casting in different mediums and components for additional benefits [30; 32]. For example, [PERSON] et al. in ref. [32] managed to coat a surface with OTS-treated SiO\({}_{2}\) NPs to achieve a self-healing surface. This versatile pairing allowed for the creation of superhydrophobic/hydrophilic (SHH) surfaces capable of manifesting both properties simultaneously [34; 35; 36]. In this sense, the creation of surfaces with an SHPho, HPhi or hybrid behavior has attracted scientific attention because of their properties, such as anti-fogging, anti-icing and amphiphobic properties [8; 18; 37; 38; 39]. This has created a tendency to view water-harvesting capabilities in the context of experimental studies that quantify this property through the accessible means of fog basking or water recollection and that estimate the yield potential of proposed surface treatments [4; 34; 37; 40; 41]. However, the property of dew enhancement is a complex phenomenon, and the required conditions to mimic water harvesting from it can be complicated. Hybrid SHH surfaces have shown promising results as surfaces with water-capturing or dew-enhancing properties [42; 43; 44]. However, efficient and consistent surface properties are still a significant hurdle that this technology must overcome. A facile method with the ease of reproduction would significantly push passive dew-enhancing technologies forward. In this study, a surface treatment of SiO\({}_{2}\) NPs was investigated to achieve surfaces with SHPho/HPhi behavior via the layered deposition of untreated SiO\({}_{2}\) NPs and OTS-treated SiO\({}_{2}\) NPs to create a hybrid SHH surface.