Mishchenko, Lidiya

Vasquez Y, Kolle M, Mishchenko L, Hatton BD, Aizenberg J. Three-Phase Co-Assembly: In-situ Incorporation of Nanoparticles into Tunable, Highly-Ordered, Porous Silica FIlms. ACS Photonics [Internet]. 2014;1 (1) :53-60. Full TextAbstract

We present a reproducible, one-pot colloidal co-assembly approach that results in large-scale, highly ordered porous silica films with embedded, uniformly distributed, accessible gold nanoparticles. The unique coloration of these inverse opal films combines iridescence with plasmonic effects. The coupled optical properties are easily tunable either by changing the concentration of added nanoparticles to the solution before assembly or by localized growth of the embedded Au nanoparticles upon exposure to tetrachloroauric acid solution, after colloidal template removal. The presence of the selectively absorbing particles furthermore enhances the hue and saturation of the inverse opals’ color by suppressing incoherent diffuse scattering. The composition and optical properties of these films are demonstrated to be locally tunable using selective functionalization of the doped opals.

Mishchenko L, Aizenberg J, Hatton BD. Spatial Control of Condensation and Freezing on Superhydrophobic Surfaces with Hydrophilic Patches. Adv. Funct. Mater. [Internet]. 2013;23 (36) :4577-4584. Publisher's VersionAbstract
Certain natural organisms use micro‐patterned surface chemistry, or ice‐nucleating species, to control water condensation and ice nucleation for survival under extreme conditions. As an analogy to these biological approaches, it is shown that functionalized, hydrophilic polymers and particles deposited on the tips of superhydrophobic posts induce precise topographical control over water condensation and freezing at the micrometer scale. A bottom‐up deposition process is used to take advantage of the limited contact area of a non‐wetting aqueous solution on a superhydrophobic surface. Hydrophilic polymer deposition on the tips of these geometrical structures allows spatial control over the nucleation, growth, and coalescence of micrometer‐scale water droplets. The hydrophilic tips nucleate water droplets with extremely uniform nucleation and growth rates, uniform sizes, an increased stability against coalescence, and asymmetric droplet morphologies. Control of freezing behavior is also demonstrated via deposition of ice‐nucleating AgI nanoparticles on the tips of these structures. This combination of the hydrophilic polymer and AgI particles on the tips was used to achieve templating of ice nucleation at the micrometer scale. Preliminary results indicate that control over ice crystal size, spatial symmetry, and position might be possible with this method. This type of approach can serve as a platform for systematically analyzing micrometer‐scale condensation and freezing phenomena, and as a model for natural systems.
Mishchenko L, Hatton B, Kolle M, Aizenberg J. Patterning Hierarchy in Direct and Inverse Opal Crystals. Small. 2012;8 (12) :1904-1911. 2012Small.Mishchenko.patterning_hierarchy.pdf
Mishchenko L, Burgess BHIB, David S, Sandhage K, Aizenberg J. Colloidal co-assembly route to large-area high-quality phototonic crystals. Proc. SPIE. 2011;7946 :79460K. Mishchenko_2011%20SPIE%20proceeding_revised.pdf
Burgess IB, Mishchenko L, Hatton BD, Kolle M, Loncar M, Aizenberg J. Encoding complex wettability patterns in chemically functionalized 3D photonic crystals. J. Am. Chem. Soc. 2011;133 (32) :12430-12432. JACS_W-Ink_2011.pdf
Bahadur V, Mishchenko L, Hatton B, Taylor JA, Aizenberg J, and Krupenkin T. Predictive Model for Ice Formation on Superhydrophobic Surfaces. Langmuir. 2011;27 :14143–14150. 2011_Langmuir_Bahadur.pdf
Hatton B, Mishchenko L, Davis S, Sandhage KH, Aizenberg J. Assembly of large-area, highly ordered, crack-free inverse opal films. Proc. Nat. Acad. Sci. USA. 2010;107 :10354-10359. 2010_PNAS.pdf
Mishchenko L, Hatton B, Bahadur V, Taylor JA, Krupenkin T, Aizenberg J. Design of Ice-free Nanostructured Surfaces Based on Repulsion of Impacting Water Droplets. ACS Nano. 2010;4 (12) :7699–7707. 2010_ACSNano_LM.pdf
Hatton B, Mishchenko L, Norwood R, Davis S, Sandhage K, Aizenberg J. An Evaporative Co-assembly Method for Highly-Ordered Inverse Opal Films. Proc. SPIE. 2009;7205 :72050-1. Hatton.SPIE2009.pdf