Di Zhang - Böcker

This book presents a method for replicating natural butterfly wing scales using a variety of metals for state-of-the-art applications requiring high surface-enhancement properties. During the past decade, three dimensional (3D) sub-micrometer structures have attracted considerable attention for optical applications. These 3D subwavelength metallic structures are, however, difficult to prepare. By contrast, the 3D superstructures of butterfly wing scales, with more than 175 000 morphologies, are efficiently engineered by nature. Natural butterfly wing scales feature 3D sub-micrometer structures that are superior to many human designs in terms of structural complexity, reproducibility, and cost. Such natural wealth offers a versatile chemical route via the replication of these structures into functional metals.A single versatile chemical route can be used to produce butterfly scales in seven different metals. These synthesized structures have the potential for catalytic (Au, Pt, Pd), thermal (Ag, Au, Cu), electrical (Au, Cu, Ag), magnetic (Co, Ni), and optical (Au, Ag, Cu) applications. Plasmon-active Au, Cu, Ag butterfly scales have exhibited excellent properties in surface-enhanced Raman scattering (SERS). The Au scales as SERS substrates have ten times the analyte detection sensitivity and are one-tenth the cost of their human-designed commercial counterparts (KlariteTM). Preliminary mechanisms of these surface-enhancement phenomena are also reviewed.

Morphology Genetic Materials Templated from Nature Species provides a comprehensive and up-to-date coverage of research on bio-inspired functional materials including materials science and engineering aspects of the fabrication, properties, and applications. The book discusses bio-inspired strategies integrating biotemplate, biomineralization, and biomimesis in nature, which are adopted to fabricate functional materials with hierarchical bio-architectures and interrelated outstanding performances, as well as valuable applications in photoelectricity, photonics, photocatalysis, chemical detection, bio-imaging, and photoelectron transfer components/devices.The book is intended for researchers and graduate students in the fields of materials science, chemistry, nanotechnology, semiconductor, biotechnology, environmental engineering, etc.Prof. Dr. Di Zhang is currently a professor at the School of Materials Science and Engineering, Shanghai Jiao Tong University, and the director of the State Key Laboratory of Metal Matrix Composites, China.