Biomimetics

Nature contains a range of biomaterials that possess extraordinary features that are often the source of inspiration for developing next-generation materials.  One main focus of our group is on bioadhesives of spider silks, gecko setae, bacterial and so on, which show intriguing behavior governed by factors including complex molecular design, mechanical strength, humidity, and self-cleaning, to name a few. Their unique properties lay a strong foundation for research in developing new bioinspired materials. Inspired by bird feathers图片3 colors, we also explore structural colors, which are remarkable for their color tunability and resistance to chemical and photo bleaching compared with traditional pigmentatary colors. Overall, our group studies the basic principles governing these unique systems and utilizes the concepts to develop engineered materials.

Recent Publications

Jain, D.; Zhang, C.; Cool, L.R.; Blackledge, T.A.; Wesdemiotis, C.; Miyoshi, T.; Dhinojwala. “Composition and Function of Spider Glues Maintained During the Evolution of Cobwebs” Biomacromolecules 2015, ASAP. pdficon_small

Stark, A.Y.; Dryden, D.M.; Olderman, J.; Peterson, K.A.; Niewiarowski, P.H., French, R.H.; Dhinojwala, A. “Adhesive Interactions of Geckos with wet and dry fluoropolymer substrates” J. R. Soc. Interface 2015, 12 (108), 20150464.pdficon_small

Xiao, M.; Li, Y.; Allen, M. C.; Deheyn, D. D.; Yue, X.; Zhao, J.; Gianneschi, N. C.; Shawkey, M. D.; Dhinojwala, A. “Bio-Inspired Structural Colors Produced via Self-Assembly of Synthetic Melanin Nanoparticles” ACS Nano 2015, 9, 5454–5460 (highlighted by ACS Editors’ Choice, C&E News, Nano today, and ScienceDaily). pdficon_small

Jain, D.; Stark, A.Y.; Niewiarowski, P. H.; Miyoshi, T.; Dhinojwala, A. “NMR spectroscopy reveals the presence and association of lipids and keratin in adhesive gecko setae” Sci. Rep. 2015, 5, 9594. pdficon_small

Amarpuri, G.; Chaurasia, V.; Jain, D.; Blackledge, T. A.; Dhinojwala, A. “Ubiquitous distribution of salts and proteins in spider glue enhances spider silk adhesion” Sci. Rep. 20155, 9030. pdficon_small  

Sahni, V.; Miyoshi, T.; Chen, K.; Jain, D.; Blamires, S. J.; Blackledge, T. A.; Dhinojwala, A. “Direct Solvation of Glycoproteins by Salts in Spider Silk Glues Enhances Adhesion and Helps to Explain the Evolution of Modern Spider Orb Webs” Biomacromolecules 2014, 15, 1225-1232. pdficon_small

Stark, A. Y.; Wucinich, N. A.; Paoloni, E. L.; Niewiarowski, P. H.; Dhinojwala, A. “Self-Drying: A Gecko’s Innate Ability to Remove Water from Wet Toe Pads” PLOS ONE 2014, 9e101885. pdficon_small

Stark, A. Y.; McClung, B.; Niewiarowski, P. H.; Dhinojwala, A. “Reduction of Water Surface Tension Significantly Impacts Gecko Adhesion Underwater” Integrative and Comparative Biology, pp. 1-8, doi: 10.1093/icb/icu066. pdficon_small

Badge, I.; Stark, A.; Paoloni, E. L.; Niewiarowski, P. H.; Dhinojwala, A. “The Role of Surface Chemistry in Adhesion and Wetting of Gecko Toe Pads” Scientific Reports 2014, 4:6643, DOI: 10.1038/srep06643. pdficon_small

Sahni, V.; Miyoshi, T.; Chen, K.; Jain, D.; Blamires, S. J.; Blackledge, T. A.; Dhinojwala, A. “Direct Solvation of Glycoproteins by Salts in Spider Silk Glues Enhances Adhesion and Helps to Explain the Evolution of Modern Spider Orb Webs” Biomacromolecules 2014, 15, 1225-1232. pdficon_small

Heiber, M. C.; Dhinojwala, A. “Efficient Generation of Model Bulk Heterojunction Morphologies for Organic Photovoltaic Device Modeling” Physical Review Applied 2014, 2, 014008. pdficon_small

Stark, A. Y.; Wucinich, N. A.; Paoloni, E. L.; Niewiarowski, P. H.; Dhinojwala, A. “Self-Drying: A Gecko’s Innate Ability to Remove Water from Wet Toe Pads” PLOS ONE 2014, 9, e101885. pdficon_small

Stark, A. Y.; McClung, B.; Niewiarowski, P. H.; Dhinojwala, A. “Reduction of Water Surface Tension Significantly Impacts Gecko Adhesion Underwater” Integrative and Comparative Biology, pp. 1-8, doi:10.1093/icb/icu066. pdficon_small

Blamires, S. J.; Sahni, V.; Dhinojwala, A.; Blackledge, T. A.; Tso, I. “Nutrient Deprivation Induces Property Variations in Spider Gluey Silk” PLOS ONE 2014, 9, e88487. pdficon_small

Jain, D.; Sahni, V.; Dhinojwala, A. ” Synthetic Adhesives Attachment Discs Inspired by Spider’s Pyriform Silk Architecture” J. Poly. Sci., Part B: Poly. Phys. 2014, 52, 553-560. pdficon_small

Xiao, M.; Dhinojwala, A.; Shawkey, M. “Nanostructural basis of rainbow-like iridescence in common bronzewing Phaps chalcoptera feathers” Optics Express 2014, 22, 14625-14636. pdficon_small

Stark, A. Y.; Badge, I.; Wucinich, N. A.; Sullivan, T. W.; Niewiarowski, P. H.; Dhinojwala, A. “Surface wettability plays a significant role in gecko adhesion underwater” PNAS 2013110 (16), 6340-6345. pdficon_small

Sahni, V.; Harris, J.; Blackledge, T.A.; Dhinojwala, A. “Cobweb-Weaving Spiders Produce Different Attachment Discs for Locomotion and Pray Capture” Nature Communications 2012, 3:1106 doi: 10.1038/ncomms2099 (2012). 

Sahni, V.; Labhasetwar, D. V.; Dhinojwala, A. “Spider Silk Inspired Functional Microthreads” Langmuir 2012, 28(4), 2206-2210. 

Sahni, V.; Blackledge, T. A.; Dhinojwala, A.; “A Review on Spider Silk Adhesion” J. Adhesion 2011, 87(6), 595-614. 

Sahni, V.; Blackledge, T. A.; Dhinojwala, A. “Changes in the Adhesive Properties of Spider Aggregate Glue During the Evolution of Cobwebs” Sci. Rep. 2011, 1, 41. 

Alibardi, L.; Edward, D. P.; Patil, L.; Bouhenni, R.; Dhinojwala, A; Niewiarowski, P. H. “Histochemical and Ultrastructural Analyses of Adhesive Setae of Lizards Indicate that they Contain Lipids in Addition to Keratins”J. Morphology 2011, 272(6), 758-768. 

Hsu, P. Y.; Ge, L.; Li, X.; Stark, A. Y.; Wesdemiotis, C.; Niewiarowski, P. H.; Dhinojwala, A. “Direct Evidence oh Phospholipids in Gecko Footprints and Spatula-Substrate Contact Interface Detected Using Surface-Sensitive Spectroscopy” J. R. Soc. Interface 2011,

Sahni, V.; Blackledge, T. A.; Dhinojwala, A. “Viscoelastic Solids Explain Spider Web Stickiness” Nature Comm. 2010, 1, 19.