Author
Chi-Cheng Fu
Bio: Chi-Cheng Fu is an academic researcher from University of California, Merced. The author has contributed to research in topics: Shape-memory polymer & Surface plasmon resonance. The author has an hindex of 3, co-authored 4 publications receiving 258 citations.
Papers
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TL;DR: In this paper, a simple two-step approach is used to fabricate controllable biaxial and uniaxially nanowrinkles based on shape memory polymer (prestressed polystyrene) sheets.
Abstract: (Figure Presented) Controllable biaxial and uniaxial nanowrinkles (see figure) are fabricated by a simple two-step approach - metal deposition and subsequent heating - based on shape memory polymer (prestressed polystyrene) sheets. The wavelengths of the wrinkles can be tuned by controlling the thickness of deposited metal. The ready integration of the nanowrinkles into microchannels and their effectiveness in surface enhanced sensing is demonstrated. © 2009 Wiley-VCH Verlag GmbH & Co. KGaA.
220 citations
TL;DR: In this paper, a simple, ultra-rapid and robust method to create sharp nanostructures (nanopetals) in a shape memory polymer substrate demonstrating unprecedented enhancements for surface enhanced sensing over large surface areas.
Abstract: We present a simple, ultra-rapid and robust method to create sharp nanostructures—nanopetals—in a shape memory polymer substrate demonstrating unprecedented enhancements for surface enhanced sensing over large surface areas. These bimetallic nanostructures demonstrate extremely strong surface plasmon resonance effects due to the high density multifaceted petal structures that increase the probability of forming nanogaps. We demonstrate that our nanopetals exhibit extremely strong surface plasmons, confining the emission and enhancing the fluorescence intensity of the nearby high-quantum yield fluorescein by >4000×. The enhancements are confined to the extremely small volumes at the nanopetal borders. This enables us to achieve single molecule detection at relatively high and physiological concentrations.
48 citations
Patent•
12 May 2010
TL;DR: In this article, a thermoplastic base with a high surface area textured metal surface is provided. But the textured surface has an average height from about 100 nanometers to about 5 micrometers.
Abstract: Methods of using a device is provided that contains a heat-shrunk thermoplastic base having a high-surface area textured metal surface, wherein the textured metal surface has an average height from about 100 nanometers to about 5 micrometers.
5 citations
Cited by
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TL;DR: In this paper, a comprehensive review of shape-memory polymers (SMPs) and their derivatives, such as composites and compound structures, as well as their current applications are presented.
1,034 citations
TL;DR: An up-to-date review on shape memory polymer composites with potential applications in biomedical devices, aerospace, textiles, civil engineering, bionics engineering, energy, electronic engineering, and household products is presented.
981 citations
TL;DR: A brief review on the current progress in stimuli-responsive shape memory materials can be found in this article, where the focus is on twofold, namely newly observed ones, and novel applications with great potential at present and in near future.
864 citations
TL;DR: Shape memory polymers (SMPs) as mentioned in this paper represent a highly interesting class of materials and have gained significant interest in recent years, thus, the variety of materials investigated virtually exploded and several promising shape memory effects have been developed.
711 citations
Journal Article•
TL;DR: This paper discusses how and why wrinkles/buckles form in various materials, and describes several examples from everyday life that demonstrate that wrinkling or buckling is indeed a commonplace phenomenon that spans a multitude of length scales.
Abstract: The English-language dictionary defines wrinkles as "small furrows, ridges, or creases on a normally smooth surface, caused by crumpling, folding, or shrinking". In this paper we review the scientific aspects of wrinkling and the related phenomenon of buckling. Specifically, we discuss how and why wrinkles/buckles form in various materials. We also describe several examples from everyday life, which demonstrate that wrinkling or buckling is indeed a commonplace phenomenon that spans a multitude of length scales. We will emphasize that wrinkling is not always a frustrating feature (e.g., wrinkles in human skin), as it can help to assemble new structures, understand important physical phenomena, and even assist in characterizing chief material properties.
670 citations