Novel, Bioclastic Route to Self-Assembled, 3D, Chemically Tailored Meso/Nanostructures: Shape-Preserving Reactive Conversion of Biosilica (Diatom) Microshells

Sandhage, Kenneth H.; Dickerson, Matthew B.; Huseman, Philip M.; Caranna, M. A.; Clifton, Jeremy D.; Bull, Tricia; Heibel, Timothy J.; Overton, W. R.; Schoenwaelder, M. E. A.

doi:10.1002/1521-4095(20020318)14:6<429::aid-adma429>3.0.co;2-c

Cited by 192 publications

(62 citation statements)

References 19 publications

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“…To further increase the refractive index contrast and thereby enhance the interaction effect between light and the frustule, silica can be substituted in the growth medium with high levels of the trace substances Jeffryes et al 2008;Lang et al 2013). Due to the fact that even the trace amount of impurities may influence photonic characteristics of the frustule, cultivation conditions must be controlled to ensure reproducible products for industrial applications, or it can be done by 3D structural preserving chemical substitution after removal of organic material in the cleaning process (Sandhage et al 2002;Bao et al 2009;van Eynde et al 2013). To further quantify and understand the light-frustule interaction, its implication on biological functions of the diatom, and the possible industrial applications, more advanced photonic studies have to be conducted.…”

Section: Photonic Band Gaps Wave-guiding and Bragg Scatteringmentioning

confidence: 99%

The fascinating diatom frustule—can it play a role for attenuation of UV radiation?

et al. 2016

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Diatoms are ubiquitous organisms in aquatic environments and are estimated to be responsible for 20-25 % of the total global primary production. A unique feature of diatoms is the silica wall, called the frustule. The frustule is characterized by species-specific intricate nanopatterning in the same size range as wavelengths of visible and ultraviolet (UV) light. This has prompted research into the possible role of the frustule in mediating light for the diatoms' photosynthesis as well as into possible photonic applications of the diatom frustule. One of the possible biological roles, as well as area of potential application, is UV protection. In this review, we explore the possible adaptive value of the silica frustule with focus on research on the effect of UV radiation on diatoms. We also explore the possible effect of the frustules on UV radiation, from a theoretical, biological, and applied perspective, including recent experimental data on UV transmission of diatom frustules.

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Section: Photonic Band Gaps Wave-guiding and Bragg Scatteringmentioning

confidence: 99%

The fascinating diatom frustule—can it play a role for attenuation of UV radiation?

et al. 2016

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“…Diatoms are an attractive source of such materials which have all the desired features. Silica may not be the optimal material for particular nanotechnological applications, however, a variety of techniques have been developed to either convert diatom silica into technologically useful chemistries [146][147][148][149] or use diatom silica as a template via coating approaches [150,151], while maintaining nanostructure. Initial investigations into the technological potential of diatoms has included demonstration of light guiding photonic ability of girdle bands in Coscinodiscus granii [152], and incorporation and stabilization of a functional enzyme into the cell wall silica of a living diatom using genetic engineering [139].…”

Section: Potential Applications Of Manipulated Diatom Silica Structuresmentioning

confidence: 99%

Molecular Processes of Biosilicification in Diatoms

Davis

Hildebrand

2008

Biomineralization

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“…Diatomite is an inert, lightweight, highly porous, super absorbent material, and has wide industrial applications, including as a sound and heat insulator, absorbent, filter, filler, and as a lightweight building material. Owing to its inherent macroporous structure, low cost and availability, diatomite has been recently used as a template to fabricate macroporous carbon [39], zirconia [40], magnesium oxide [41], and zeolite [38,42,43] materials with intricate three-dimensional structures.…”

Section: Macroporous Materialsmentioning

confidence: 99%

Bioinspired Porous Hybrid Materials via Layer‐by‐Layer Assembly

Wang

Caruso

2007

Bio‐inorganic Hybrid Nanomaterials

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Hybrid porous materials are attracting considerable interest for applications such as biocatalysis, biosensing, and bioseparation, because they combine benefits originating from their unique pore structure and intrinsic composite properties. These materials are generally composed of a porous inorganic framework, which acts as a robust support for functionalization with organic species or biological molecules. The unique pore channels make it possible to use the functional sites situated in the inorganic framework. This chapter discusses recent trends in using porous inorganic materials with pore sizes from several nanometers to micrometers as substrates for biologically oriented applications, emphasizing the layer-by-layer (LbL) method. The flexibility of the LbL strategy will be demonstrated by a number of examples, where various species are deposited in porous substrates with different morphologies and pore structures. We will focus on porous materials in which new biological properties have been engineered, and highlight our recent investigations into the bioapplication of mesoporous silica particles. Additionally, we will briefly discuss the potential applications of the novel bio-hybrids with different pore structures. Porous MaterialsMaterials with uniform pore structures offer a wide range of applications, including catalysis, adsorption, and separation. These materials have the benefit of both specific pore systems and intrinsic chemical properties [1][2][3]. The pores in the materials are able to host guest species and provide a pathway for molecule transportation. The skeletal pore walls provide an active and/or affinity surface to associate with guest molecules. According to the International Union of Pure and Applied Chemistry (IUPAC), porous materials can be classified into three main categories based on the diameters of their pores, that is, microporous, mesoporous, and macroporous j209 Bio-inorganic Hybrid Nanomaterials. Edited

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Novel, Bioclastic Route to Self-Assembled, 3D, Chemically Tailored Meso/Nanostructures: Shape-Preserving Reactive Conversion of Biosilica (Diatom) Microshells

Cited by 192 publications

References 19 publications

The fascinating diatom frustule—can it play a role for attenuation of UV radiation?

The fascinating diatom frustule—can it play a role for attenuation of UV radiation?

Molecular Processes of Biosilicification in Diatoms

Bioinspired Porous Hybrid Materials via Layer‐by‐Layer Assembly

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