Structural color materials from existing natural organisms have been widely studied to enable artificial manufacture. Variable iridescence has attracted particular interest because of the displays various brilliant examples. Existing synthetic, variable, structural require external stimuli provide changing displays, despite autonomous regulation being widespread among organisms, and therefore suffer inherent limitations. Inspired by mechanism chameleons, we present a conceptually different...

Abstract 2D materials are of particular interest in light‐to‐heat conversion, yet challenges remain developing a facile method to suppress their light reflection. Herein, inspired by the black scales Bitis rhinoceros , generalized approach via sequential thermal actuations construct biomimetic 2D‐material nanocoatings, including Ti 3 C 2 T x MXene, reduced graphene oxide (rGO), and molybdenum disulfide (MoS ) is designed. The hierarchical MXene nanocoatings result broadband absorption (up...

Conductive hydrogels are widely used in various applications, such as artificial skin, flexible and implantable bioelectronics, tissue engineering. However, it is still a challenge to formulate with high electrical conductivity without compromising their physicochemical properties (e.g., toughness, stretchability, biocompatibility). Additionally, incorporating other functions, self-healing, shape memory, wet adhesion, into conductive critical many practical applications of hydrogel...

Significance Structural color hydrogels have been widely studied and used in different applications, such as switches, optical devices, etc. However, because the deterioration accumulation of damage these materials are inevitable during creation bio-inspired structure with increased survivability is still desired for both fundamental research practical applications. In this study, inspired by creatures nature spontaneous healing from injury recovering functionality, we demonstrated a...

Helical objects are among the most important and landmark structures in nature, represent an emerging group of materials with unique spiral geometry; because their enriched physical chemical properties, they can have multiple functionalities. However, fabrication such complex helical at micro- or nanoscale level remains a challenge. Here, coaxial capillary microfluidic system, functions consecutive spinning spiraling, is presented for scalable generation microfibers. The processes be...

The semiconductor compounds have been proven to be promising candidates as a new type of photothermal therapy agent, but unsatisfactory conversion efficiencies limit their widespread application in (PTT). Herein, we synthesized cysteine-coated CuS nanoparticles (Cys-CuS NPs) highly efficient PTT agents by simple aqueous solution method. Cys-CuS NPs good biocompatibility owing biocompatible cysteine coating and exhibit strong absorption the near-infrared region due localized surface plasma...

Abstract In the emerging Internet of Things, stretchable antennas can facilitate wireless communication between wearable and mobile electronic devices around body. The proliferation transmitting near human body also raises interference safety concerns that demand materials capable shielding electromagnetic (EMI). Here, an ultrastretchable conductor is fabricated by depositing a crumple‐textured coating composed 2D Ti 3 C 2 T x nanosheets (MXene) single‐walled carbon nanotubes (SWNTs) onto...

Morpho butterflies are famous for their wings' brilliant structural colors arising from periodic nanostructures, which show great potential value fundamental research and practical applications. Here, a novel cellular mechanical visualizable biosensor formed by assembling engineered cardiac tissues on the butterfly wings is presented. The assembled cardiomyocytes benefit parallel nanoridges of can recover autonomic beating ability with guided orientation good contraction performance. As...

We report the development of a lactobionic acid (LA)-modified multifunctional dendrimer-based carrier system for targeted therapy liver cancer cells overexpressing asialoglycoprotein receptors. In this study, generation 5 (G5) poly(amidoamine) (PAMAM) dendrimers were sequentially modified with fluorescein isothiocyanate (FI) and LA (or polyethylene glycol (PEG)-linked LA, PEG-LA), followed by acetylation remaining dendrimer terminal amines. The synthesized G5.NHAc-FI-LA or G5.NHAc-FI-PEG-LA...

As an important characteristic of many creatures, structural colors play a crucial role in the survival organisms. Inspired by these features, intelligent color material with heterogeneous striped pattern and stimuli-responsivity fast self-assembly colloidal nanoparticles capillaries certain diameter range are presented here. The width, spacing, color, even combination stripe patterns can be precisely tailored adjusting parameters. Attractively, integration near-infrared (NIR) light...

The fabrication of heterogeneous microstructures, which exert precise control over the distribution different cell types within biocompatible constructs, is important for many tissue engineering applications. Here, bioactive microfibers with tunable morphologies, structures, and components are generated employed creating constructs. Multibarrel capillary microfluidics multiple laminar flows used continuously spinning these microfibers. With an immediate gelation reaction dispersed alginate...

Heterostructured microfibers with spindle-knots and joints are developed using a novel microfluidic technology, which enables integrative microfiber joint spinning, fluid coating, knot emulsification. The knots emulsification process can be precisely tunable by adjusting the flow rates. In this way, size spacing of achieved high controllability. More attractively, construction benefits from broad availability coating fluids, determines compositions knots. Thus, resultant imparted distinctive...

A novel suspension array was developed that uses photonic crystal (PhC) microbubbles as barcode particles. The PhC have an outer transparent polymeric shell, a middle and inner bubble core, they were achieved by extraction-derived self-assembly of colloidal nanoparticles in semipermeable solid microcapsules. encoded elements the originated from their structure with coated which not only improved stability codes but also provided flexible surface for bioassays. By using multicompartmental...

Biohybrid actuators composed of living tissues and artificial materials have attracted increasing interest in recent years because their extraordinary function dynamically sensing interacting with complex bioelectrical signals. Here, a compound biohybrid actuator self-driven actuation self-reported feedback is designed based on an anisotropic inverse opal substrate periodical elliptical macropores hydrogel filling. The benefit the surface topography high biocompatibility that planted...

Functional materials with wettability of specific surfaces are important for many areas. Here, a new lubricant‐infused elastic inverse opal is presented tunable and visually “self‐reporting” surface wettability. The films used to lock in the infused lubricating fluid construct slippery repel droplets various liquids. stretchable, can penetrate pores under stretching, leaving layer free lubrication; resultant undulating morphology scaffold topography reversibly pin on fluidic film rather than...

The development of effective drug screening platforms is an important task for biomedical engineering. Here, a novel methacrylated gelatin (GelMA) hydrogel-encapsulated core-shell photonic crystal (PhC) barcode particle was developed three-dimensional cell aggregation culture and screening. GelMA shells the particles enable creation extracellular matrix (ECM) microenvironment adhesion growth, while PhC cores provide stable diffraction peaks that can encode different spheroids during...

In this work, we have developed a novel difunctional nanoplatform for targeted chemo-photothermal therapy. It is based on hollow mesoporous silica nanospheres as carrier anticancer drug-loading CuS nanoparticles attached nanosphere surface photothermal agent, and folic acid (FA) conjugated with cancer cell target. The has demonstrated good effect excellent doxorubicin (DOX) loading capacity (as high 49.3 wt%). agent DOX can be to deliver into cells via receptor mediated endocytosis pathway....

A difunctional nanoplatform (CuS@mSiO₂-PEG) acted as a NIR light induced photothermal-triggered drug delivery system for efficient chemo-photothermal therapy.

Abstract The development of a highly sensitive platform for multiplex circulating microRNAs (miRNAs) detection is important clinical diagnosis. Here, new type porous hydrogel encapsulated photonic crystal (PhC) barcodes presented with integrated rolling circle amplification (RCA) strategy miRNA quantification. As the surrounding shells PhC are interconnected inverse opal structure hydrophilic scaffolds, they can provide homogeneous water targets reaction and RCA. cores offer stable...

Hydrogel colloidal crystal composite materials have a demonstrated value in responsive photonic crystals (PhCs) via controllable stimuli. Although they been successfully exploited to generate gradient of color distribution, the soft hydrogels limitations terms stability and storage caused by dependence on environment. Here, we present practical strategy fabricate free-standing PhC films with stable structural colors using binary polymer networks. A hydrogel film was prepared for this...