Chameleon-Inspired Structural-Color Actuators

Wang, Yunlong; Cui, Huanqing; Zhao, Qilong; Du, Xuemin

doi:10.1016/j.matt.2019.05.012

Cited by 228 publications

(172 citation statements)

References 58 publications

(74 reference statements)

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Section: Biomedical Applicationsmentioning

confidence: 99%

“…Due to the similarities in the liquid transportation and mass transfer between microfluidic platforms and vascular networks of biological systems to support metabolism, microfluidics has also inspired the innovation of soft robots with biologically analog properties (e.g., autonomous locomotion and self‐adaptive coloration). For instance, a chameleon‐inspired structural color actuators has been developed based on a vapomechanically poly(trimethylolpropane triacrylate) (PTMPTA) film with inverse opal structures and well‐defined microfluidic networks . The color and shape of the film could be changed upon exposure to chemical vapors.…”

Section: Biomedical Applicationsmentioning

confidence: 99%

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Microfluidic Platforms toward Rational Material Fabrication for Biomedical Applications

Zhao

Cui

Wang

et al. 2019

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The emergence of micro/nanomaterials in recent decades has brought promising alternative approaches in various biomedicine‐related fields such as pharmaceutics, diagnostics, and therapeutics. These micro/nanomaterials for specific biomedical applications shall possess tailored properties and functionalities that are closely correlated to their geometries, structures, and compositions, therefore placing extremely high demands for manufacturing techniques. Owing to the superior capabilities in manipulating fluids and droplets at microscale, microfluidics has offered robust and versatile platform technologies enabling rational design and fabrication of micro/nanomaterials with precisely controlled geometries, structures and compositions in high throughput manners, making them excellent candidates for a variety of biomedical applications. This review briefly summarizes the progress of microfluidics in the fabrication of various micro/nanomaterials ranging from 0D (particles), 1D (fibers) to 2D/3D (film and bulk materials) materials with controllable geometries, structures, and compositions. The applications of these microfluidic‐based materials in the fields of diagnostics, drug delivery, organs‐on‐chips, tissue engineering, and stimuli‐responsive biodevices are introduced. Finally, an outlook is discussed on the future direction of microfluidic platforms for generating materials with superior properties and on‐demand functionalities. The integration of new materials and techniques with microfluidics will pave new avenues for preparing advanced micro/nanomaterials with enhanced performance for biomedical applications.

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Section: Biomedical Applicationsmentioning

confidence: 99%

Section: Biomedical Applicationsmentioning

confidence: 99%

Microfluidic Platforms toward Rational Material Fabrication for Biomedical Applications

Zhao

Cui

Wang

et al. 2019

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“…The tremendous progresses of nanotechnology and nanomaterials have paved new ways to address some pressing challenges in precise cancer diagnostics and therapy. Nanomaterials with intelligent properties have enabled exciting opportunities for solving the traditional complex problems that cannot be reached with conventional methods [3][4][5][6]. A variety of nanomaterials, such as magnetic nanobeads (MNs) [7], quantum dots (QDs) [8], upconverting nanomaterials (UCNPs) [9], hydrogel sheets [10], and gold nanoparticles (AuNPs) [11], have been rationally fabricated, leading to great revolution in nanomedicine.…”

Section: Introductionmentioning

confidence: 99%

A Review on Artificial Micro/Nanomotors for Cancer-Targeted Delivery, Diagnosis, and Therapy

et al. 2019

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HIGHLIGHTS• Recent advances of micro/nanomotors in the field of cancer-targeted delivery, diagnosis, and imaging-guided therapy are summarized.• Challenges and outlook for the future development of micro/nanomotors toward clinical applications are discussed.ABSTRACT Micro/nanomotors have been extensively explored for efficient cancer diagnosis and therapy, as evidenced by significant breakthroughs in the design of micro/nanomotors-based intelligent and comprehensive biomedical platforms. Here, we demonstrate the recent advances of micro/nanomotors in the field of cancer-targeted delivery, diagnosis, and imaging-guided therapy, as well as the challenges and problems faced by micro/nanomotors in clinical applications. The outlook for the future development of micro/nanomotors toward clinical applications is also discussed. We hope to highlight these new advances in micro/nanomotors in the field of cancer diagnosis and therapy, with the ultimate goal of stimulating the successful exploration of intelligent micro/nanomotors for future clinical applications.

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“…Interestingly, a living biohybrid inverse opal‐structured hydrogel has been recently reported to characterize beating cardiomyocytes, demonstrating their ability to self‐report by translating cellular forces into visual signals . In addition, a vapochromic response was demonstrated in a worm‐like structural‐color walker at the centimeter scale based on structural color polymers . Another relevant aspect of structural coloration is its associated wettability properties, which was first demonstrated in superhydrophobic and superhydrophilic structural color films and later implemented in security‐related applications by creating complex wettability patterns that are visually revealed depending on the solvent polarity .…”

Section: Introductionmentioning

confidence: 99%

3D‐Printed Microrobots with Integrated Structural Color for Identification and Tracking

Koepele

Guix

et al. 2020

Advanced Intelligent Systems

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The implementation of two‐photon polymerization (TPP) in the microrobotics community has permitted the fabrication of complex 3D structures at the microscale, creating novel platforms with potential biomedical applications for minimizing procedure invasiveness and diagnosis accuracy. Although advanced functionalities for manipulation and drug delivery tasks have been explored, one remaining challenge is achieving improved visualization, identification, and accurate closed‐loop control of microscale robots. To enable this, distinguishable identifying and trackable features must be included on the microrobot. Toward this end, the construction of micro‐ and nanoscale patterns using TPP is demonstrated for the first time on microrobot surfaces with the intent of mimicking color‐expressing nanostructures present on beetles or butterflies. The patterns provide identification and tracking targets due to their vivid color expression under visible light. Helical and rectangular microrobots are designed with the topical patterns and further functionalized with magnetic materials to be externally actuated by magnetic fields. Vision‐based tracking of a 20 μm × 30 μm colored feature on a 100 μm‐long helical microrobot using a fixed angular position light source during microrobotic motion is shown. This versatile structural color patterning approach shows great potential for the visual differentiation of various microrobots and tracking for improved closed‐loop control.

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Chameleon-Inspired Structural-Color Actuators

Cited by 228 publications

References 58 publications

Microfluidic Platforms toward Rational Material Fabrication for Biomedical Applications

Microfluidic Platforms toward Rational Material Fabrication for Biomedical Applications

A Review on Artificial Micro/Nanomotors for Cancer-Targeted Delivery, Diagnosis, and Therapy

3D‐Printed Microrobots with Integrated Structural Color for Identification and Tracking

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