Park D, Kim P, Alvarenga J, Jin K, Aizenberg J, Bechtold M. Dynamic daylight control system implementing thin cast arrays of polydimethylsiloxane-based millimeter-scale transparent louvers. Building and Environment. 2014;82 :87-96. park2014.building_and_environment.pdf
Mayzel B, Aizenberg J, Ilan M. The Elemental Composition of Demospongiae from the Red Sea, Gulf of Aqaba. PLoS One. 2014;9 (4) :e95775. PLoS_One_2014.Mayzel.pdf
Shillingford C, MacCallum N, Wong TS, Kim P, Aizenberg J. Fabrics coated with lubricated nanostructures display robust omniphobicity. Nanotechnology. 2014;25 :014019. 2014_shillingford_etal_nanotechnology.pdf
Yao X, Dunn S, Kim P, Duffy M, Alvarenga J, Aizenberg J. Fluorogel Elastomers with Tunable Transparency, Elasticity, Shape- Memory, and Antifouling Properties. Angew. Chem. Int. Ed. 2014;53. Angew2014_Yao.pdf
Koay N, Burgess I, Kay T, Nerger B, Miles-Rossouw M, Shirman T, Vu T, England G, Phillips K, Utech S, et al. Hierarchical structural control of visual properties in self-assembled photonic-plasmonic pigments. Opt. Express. 2014;22 (23) :27750-27768. SHARDs.pdf
Sunny S, Vogel N, Howell C, Vu TL, Aizenberg J. Lubricant-infused Nanoparticulate Coatings Assembled by Layer-by-layer Deposition. Adv. Funct. Mater. 2014;24 (42) :6658-6667. sunny2014_AdvFuncMat.pdf
Grinthal A, Aizenberg J. Mobile Interfaces: Liquids as a Perfect Structural Material for Multifunctional, Antifouling Surfaces. Chem. Mater. 2014;26 (1) :698-708. ChemMat2014_Perspective.pdf
Singleton TA, Burgess IB, Nerger BA, Goulet-Hanssens A, Koay N, Barrett CJ, Aizenberg J. Photo-tuning of Highly Selective Wetting in Inverse Opals. Soft Matter. 2014;10 :1325-1328. SoftMatter2014.Singleton.pdf
Balazs AC, Aizenberg J. Reconfigurable soft matter. Soft Matter. 2014;10 :1244-1245. balazs_Aizenberg2014.reconfigurable_soft_matter.pdf
Howell C, Vu TL, Lin JJ, Kolle S, Juthani N, Watson E, Weaver JC, Alvarenga J, Aizenberg J. Self-Replenishing Vascularized Fouling-Release Surfaces. ACS Appl. Mater. Interfaces. 2014. howell2014.self_replenishing_vascularized_fouling_release_surfaces.pdf
Zarzar LD, Aizenberg J. Stimuli-Responsive Chemomechanical Actuation: A Hybrid Materials Approach. Acc. Chem. Res. 2014;47 (2) :530-539. AccChemRes2014.Zarzar.pdf
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. 2014;1 (1) :53-60. ACSPhotonics2014.Vasquez.pdf
Phillips KR, Vogel N, Hu Y, Kolle M, Perry CC, Aizenberg J. Tunable Anisotropy in Inverse Opals and Emerging Optical Properties. Chem. Mater. 2014;26 (4) :1622-1628. ChemMat2014_Phillips.pdf
Burgess IB, Nerger BA, Raymond KP, Goulet-Hanssens A, Singleton TA, Kinney MH, Shneidman AV, Koay N, Barrett CJ, Loncar M, et al. Wetting in Color: From photonic fingerprinting of liquids to optical control of liquid percolation. Proc. of SPIE. 2013;8632 :863201.Abstract

We provide an overview of our recent advances in the manipulation of wetting in inverse-opal photonic crystals. Exploiting photonic crystals with spatially patterned surface chemistry to confine the infiltration of fluids to liquidspecific spatial patterns, we developed a highly selective scheme for colorimetry, where organic liquids are distinguished based on wetting. The high selectivity of wetting, upon-which the sensitivity of the response relies, and the bright iridescent color, which disappears when the pores are filled with liquid, are both a result of the highly symmetric pore structure of our inverse-opal films. The application of horizontally or vertically orientated gradients in the surface chemistry allows a unique response to be tailored to specific liquids. While the generic nature of wetting makes our approach to colorimetry suitable for applications in liquid authentication or identification across a broad range of industries, it also ensures chemical non-specificity. However, we show that chemical specificity can be achieved combinatorially using an array of indicators that each exploits different chemical gradients to cover the same dynamic range of response. Finally, incorporating a photo-responsive polyelectrolyte surface layer into the pores, we are able to dynamically and continuously photo-tune the wetting response, even while the film is immersed in liquid. This in situ optical control of liquid percolation in our photonic-crystal films may also provide an error-free means to tailor indicator response, naturally compensating for batch-to-batch variability in the pore geometry.

Wong T-S, Sun T, Feng L, Aizenberg J. Interfacial materials with special wettability. MRS Bulletin. 2013;38 :366-371.Abstract

Various life forms in nature display a high level of adaptability to their environments through the use of sophisticated material interfaces. This is exemplifi ed by numerous biological systems, such as the self-cleaning of lotus leaves, the water-walking abilities of water striders and spiders, the ultra-slipperiness of pitcher plants, the directional liquid adhesion of butterfl y wings, and the water collection capabilities of beetles, spider webs, and cacti. The versatile interactions of these natural surfaces with fl uids, or special wettability, are enabled by their unique micro/nanoscale surface structures and intrinsic material properties. Many of these biological designs and principles have inspired new classes of functional interfacial materials, which have remarkable potential to solve some of the engineering challenges for industrial and biomedical applications. In this article, we provide a snapshot of the state of the art of biologically inspired materials with special wettability, and discuss some promising future directions for the field.

Aizenberg J, Fratzl P. New Materials through Bioinspiration and Nanoscience. Adv. Funct. Mater. 2013;23 :4398-4399. 2013_aizenberg_fratzl_advfunctmater.pdf
Grinthal A, Aizenberg J. Adaptive all the way down: Building responsive materials from hierarchies of chemomechanical feedback. Chem. Soc. Rev. 2013;42 (17) :7072-7085. ChemSocRev2013.pdf
Yao X, Hu Y, Grinthal A, Wong T-S, Mahadevan L, Aizenberg J. Adaptive fluid-infused porous films with tunable transparency and wettability. Nature Materials. 2013;12 :529-534. NatMat2013.Yao.pdf
Hatton BD, Wheeldon I, Hancock MJ, Kolle M, Aizenberg J, Ingber DE. An artificial vasculature for adaptive thermal control of windows. Solar Energy Materials and Solar Cells. 2013;117 :429-436. 2013_Hattonetal_SolarEnergyMaterialsandSolarCells.pdf
Friedlander RS, Vlamakis H, Kim P, Khan M, Kolter R, Aizenberg J. Bacterial flagella explore microscale hummocks and hollows to increase adhesion. Proc. Nat. Acad. Sci. 2013;110 (14) :5624-5629. PNAS-2013-Friedlander.pdf