Spirulina-Templated Metal Microcoils with Controlled Helical Structures for THz Electromagnetic Responses

Kamata, Kiichiro; Piao, Zhenzi; Suzuki, Sohei; Fujimori, Takahiro; Tajiri, Wataru; Nagai, Keiji; Iyoda, Tomokazu; Yamada, Atsushi; Hayakawa, Toshiaki; Ishiwara, Mitsuteru; Horaguchi, Satoshi; Belay, Amha; Tanaka, Takuo; Takano, Keisuke; Hangyo, Masanori

doi:10.1038/srep04919

Cited by 65 publications

(50 citation statements)

References 18 publications

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“…Copper was coated via electroless plating onto the surface of Spirulina and the obtained coil had a micrometer pitch and diameter. 148 Another example is the direct use of E-coli cells. A few layers of micron sized bacteria coating on a polished surface increases the laser energy coupling and generates a hotter plasma which is effective for the ion acceleration.…”

Section: G Template Processes To Control Micro and Nanostructuresmentioning

confidence: 99%

A review of low density porous materials used in laser plasma experiments

2018

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This review describes and categorizes the synthesis and properties of low density porous materials, which are commonly referred to as foams and are utilized for laser plasma experiments. By focusing a high-power laser on a small target composed of these materials, high energy and density states can be produced. In the past decade or so, various new target fabrication techniques have been developed by many laboratories that use high energy lasers and consequently, many publications and reviews followed these developments. However, the emphasis so far has been on targets that did not utilize low density porous materials. This review therefore, attempts to redress this balance and endeavors to review low density materials used in laser plasma experiments in recent years. The emphasis of this review will be on aspects of low density materials that are of relevance to high energy laser plasma experiments. Aspects of low density materials such as densities, elemental compositions, macroscopic structures, nanostructures, and characterization of these materials will be covered. Also, there will be a brief mention of how these aspects affect the results in laser plasma experiments and the constrictions that these requirements put on the fabrication of low density materials relevant to this field. This review is written from the chemists' point of view to aid physicists and the new comers to this field.

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Section: G Template Processes To Control Micro and Nanostructuresmentioning

confidence: 99%

A review of low density porous materials used in laser plasma experiments

2018

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“…34,37,38 Spirulina platensis (S. platensis), a microalgae subspecies with a helical shape, was chosen as the bio-template to fabricate magnetic microrobots that are photocatalytic under UV-visible light. 39,40 The fabrication scheme for the coreshell, Fe 3 O 4 @TiO 2 hybrid microrobots is presented in Fig. 1a.…”

Section: Resultsmentioning

confidence: 99%

On-the-fly catalytic degradation of organic pollutants using magneto-photoresponsive bacteria-templated microcleaners

et al. 2019

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“…The complex compartmentalization of the microsprings (Figure S7) characterized by a laminar flow inside the capillary can also contribute to the optimization of their internal structure and functionality enhancement. Furthermore, microsprings composed of not only organic functional polymers1819202130, but also of inorganic materials can be potentially used in new applications involving rotation motions3132, latching33, THz electromagnetic metamaterials3435 and nanoparticle composite springs36. We envision that our proposed method for fabricating hydrogel microsprings could open new avenues to spring-based technologies in the materials science and microengineering fields.…”

Section: Discussionmentioning

confidence: 99%

Functionalized core-shell hydrogel microsprings by anisotropic gelation with bevel-tip capillary

Yoshida

Onoe

2017

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This study describes a novel microfluidic-based method for the synthesis of hydrogel microsprings that are capable of encapsulating various functional materials. A continuous flow of alginate pre-gel solution can spontaneously form a hydrogel microspring by anisotropic gelation around the bevel-tip of the capillary. This technique allows fabrication of hydrogel microsprings using only simple capillaries and syringe pumps, while their complex compartmentalization characterized by a laminar flow inside the capillary can contribute to the optimization of the microspring internal structure and functionality. Encapsulation of several functional materials including magnetic-responsive nanoparticles or cell dispersed collagen for tissue scaffold was demonstrated to functionalize the microsprings. Our core-shell hydrogel microsprings have immense potential for application in a number of fields, including biological/chemical microsensors, biocompatible soft robots/microactuators, drug release, self-assembly of 3D structures and tissue engineering.

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Spirulina-Templated Metal Microcoils with Controlled Helical Structures for THz Electromagnetic Responses

Cited by 65 publications

References 18 publications

A review of low density porous materials used in laser plasma experiments

A review of low density porous materials used in laser plasma experiments

On-the-fly catalytic degradation of organic pollutants using magneto-photoresponsive bacteria-templated microcleaners

Functionalized core-shell hydrogel microsprings by anisotropic gelation with bevel-tip capillary

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