Near-Infrared Selective and Angle-Independent Backscattering from Magnetite Nanoparticle-Decorated Diatom Frustules

Li, Haiyan; Jiang, Bin; Yang, Xiulun; Eastman, Micah; Liu, Yuming; Wang, Linhui; Campbell, Jeremy; Lampert, Lester; Wang, Ke; Rorrer, Gregory L.; Jiao, Jun

doi:10.1021/ph4001185

Cited by 9 publications

(8 citation statements)

References 23 publications

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“…Diatoms are unicellular marine organisms that have porous biosilica cell walls with dimensions on the order of 10 microns. The porous nature of the diatom frustule gives it roughly 11× more surface area than the glass surface (see File S1, Supporting Information) while the two‐dimensional periodic nanosized pores endow it with hierarchical nanoscale photonic crystal features . We have previously shown the evaporation‐based ability of diatoms to concentrate analytes .…”

Section: Introductionmentioning

confidence: 99%

Photonic crystal enhanced fluorescence immunoassay on diatom biosilica

Squire

Kong

LeDuff

et al. 2018

Journal of Biophotonics

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Fluorescence biosensing is one of the most established biosensing methods, particularly fluorescence spectroscopy and microscopy. These are two highly sensitive techniques but require high-grade electronics and optics to achieve the desired sensitivity. Efforts have been made to implement these methods using consumer grade electronics and simple optical setups for applications such as point-of-care diagnostics, but the sensitivity inherently suffers. Sensing substrates, capable of enhancing fluorescence are thus needed to achieve high sensitivity for such applications. In this paper, we demonstrate a photonic crystal-enhanced fluorescence immunoassay biosensor using diatom biosilica, which consists of silica frustules with sub-100 nm periodic pores. Utilizing the enhanced local optical field, the Purcell effect and increased surface area from the diatom photonic crystals, we create ultrasensitive immunoassay biosensors that can significantly enhance fluorescence spectroscopy as well as fluorescence imaging. Using standard antibody-antigen-labeled antibody immunoassay protocol, we experimentally achieved 100× and 10× better detection limit with fluorescence spectroscopy and fluorescence imaging respectively. The limit of detection of the mouse IgG goes down to 10 M (14 fg/mL) and 10 M (140 fg/mL) for the two respective detection modalities, virtually sensing a single mouse IgG molecule on each diatom frustule. The effectively enhanced fluorescence imaging in conjunction with the simple hot-spot counting analysis method used in this paper proves the great potential of diatom fluorescence immunoassay for point-of-care biosensing.

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Section: Introductionmentioning

confidence: 99%

Photonic crystal enhanced fluorescence immunoassay on diatom biosilica

Squire

Kong

LeDuff

et al. 2018

Journal of Biophotonics

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“…Jiao et al demonstrated the magnetite nanoparticle modification of diatom ( Pinnularia sp.) hybrids with short‐range periodicity and long‐range isotropy served as angle‐independent near‐infrared reflectors . These research may inspire future development of broadband infrared reflectors for potential applications as smart windows…”

Section: Solar Energy Reflectionmentioning

confidence: 95%

Bio‐Inspired Photonic Materials: Prototypes and Structural Effect Designs for Applications in Solar Energy Manipulation

Zhou

Liu

et al. 2017

Adv Funct Materials

128

109

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Natural creatures have evolved elaborate photonic nanostructures on multiple scales and dimensions in a hierarchical, organized way to realize controllable absorption, reflection, or transmitting the desired wavelength of the solar spectrum. A bio-inspired strategy is a powerful and promising way for solar energy manipulation. This feature article presents the state-of-theart progress on bio-inspired photonic materials on this particular application. The article first briefly recalls the physical origins of natural photonic effects and catalogues the typical natural photonic prototypes including light harvesting, broadband reflection, selective reflection, and UV/IR response. Next, typical applications are categorized into two primary areas: solar energy utilization and reflection. Recent advances including solar-to-electricity, solar-to-fuels, solar-thermal (e.g., photothermal converters, infrared detectors, thermoelectric materials, smart windows, and solar steam generation) are highlighted in the first part. Meanwhile, solar energy reflection involving infrared stealth, radiative cooling, and micromirrors are also addressed. In particular, this article focuses on bioinspired design principles, structural effects on functions, and future trends. Finally, the main challenges and prospects for the next generation of bioinspired photonic materials are discussed, including new design concepts, emerging ideas, and possible strategies.

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“…[57] Diatoms are even more specialized than coccolithophores in photonic control by silica structures, and hence diatom bare frustules have been investigated as natural micro-lenses, optical filters, polarizers, waveguides, [58] beam splitters, couplers, laser cavities and angle-independent near-infrared reflectors. [59] Among diatom species, Coscinodiscus has been extensively investigated for photonic properties related to its frustule [74] ; (c) fluorescence microscopy image of luminescent stained biosilica in living diatoms, with permission. Bar: 30 µm [75] ; (d 1-4 ) cathodoluminescence emission of doped coccoliths and SEM image of Tb 3+ -doped coccoliths, with permission of Ref.…”

Section: Photonic and Electronic Applicationsmentioning

confidence: 99%

Perspectives on applications of nanomaterials from shelled plankton

et al. 2021

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Biomineralization ubiquitously occurs in plankton, featuring hierarchically nanostructured shells that display several properties that benefit their host survival. Nanostructures’ shapes and many of these properties are tunable through in vitro or in vivo modification of microorganisms, making their shells very appealing for applications in materials sciences. Despite the abundance of shell-forming species, research has focused mainly on diatoms and coccolithophores microalgae, with current scientific literature mostly targeting the development of photonic, biomedical and energy storage/conversion devices. This prospective article aims to critically overview potentialities of nanomaterials from biomineralizing plankton, possible outcomes and technological impact relevant to this technology. Graphic Abstract

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Near-Infrared Selective and Angle-Independent Backscattering from Magnetite Nanoparticle-Decorated Diatom Frustules

Cited by 9 publications

References 23 publications

Photonic crystal enhanced fluorescence immunoassay on diatom biosilica

Photonic crystal enhanced fluorescence immunoassay on diatom biosilica

Bio‐Inspired Photonic Materials: Prototypes and Structural Effect Designs for Applications in Solar Energy Manipulation

Perspectives on applications of nanomaterials from shelled plankton

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