Controlled Deformation of Soft Nanogel Particles Generates Artificial Biominerals with Ordered Internal Structure

Dong, Yingxiang; Chi, Jialin; Ren, Zelun; Xiong, Biao; Liu, Ziqing; Zhang, Wenjun; Wang, Lijun; Fujii, Syuji; Armes, Steven P.; Ning, Yin

doi:10.1002/anie.202300031

Cited by 11 publications

(7 citation statements)

References 65 publications

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“…Surprisingly, this did not happen in our case, as indicated by the fact that the CNPs were separately distributed within the calcite (Figure ). By using an in situ atomic force microscopy, nanoparticle incorporation into calcite crystals has been elucidated by our group and others. – Generally, the guest nanoparticles are first adsorbed onto the growing calcite (104) faces, followed by engulfment by the advancing growth steps . In our case, although MSNs-NH 2 nanoparticles intrinsically cannot be incorporated, a monolayer of adsorbed PMAA 84 -P(St- alt -NMI) 100 nanoparticles enables their adsorption onto the calcite surface and subsequent engulfment by the growing crystals.…”

Section: Discussionmentioning

confidence: 89%

Interfacial Supra-Assembly of Copolymer Nanoparticles Enables the Formation of Nanocomposite Crystals with a Tunable Internal Structure

Zhao,

Chen,

et al. 2023

J. Am. Chem. Soc.

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It is highly desirable but technically challenging to precisely control the spatial composition and internal structure of crystalline nanocomposite materials, especially in a one-pot synthetic route. Herein, we demonstrate a versatile pathway to tune the spatial distribution of guest species within a host inorganic crystal via an incorporation strategy. Specifically, welldefined block copolymer nanoparticles, poly(methacrylic acid) x -block-poly-(styrene-alt-N-phenylmaleimide) y [PMAA x -P(St-alt-NMI) y ], are synthesized by polymerization-induced self-assembly. Such anionic nanoparticles can supraassemble onto the surface of larger cationic nanoparticles via an electrostatic interaction, forming colloidal nanocomposite particles (CNPs). Remarkably, such CNPs can be incorporated into calcite single crystals in a spatially controlled manner: the depth of CNPs incorporation into calcite is tunable. Systematic investigation indicates that this interesting phenomenon is governed by the colloidal stability of CNPs, which in turn is dictated by the PMAA x -P(St-alt-NMI) y adsorption density and calcium ion concentration. This study opens up a general and efficient route for the preparation of a wide range of crystalline nanocomposite materials with a controlled internal composition and structure.

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Section: Discussionmentioning

confidence: 89%

Interfacial Supra-Assembly of Copolymer Nanoparticles Enables the Formation of Nanocomposite Crystals with a Tunable Internal Structure

Zhao,

Chen,

et al. 2023

J. Am. Chem. Soc.

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“…The Cassie model proposed by Cassie suggests that droplets on a rough solid surface are not fully immersed in the surface structure but are instead supported by bubbles within the microstructure, as shown in Figure 2 a. Cassie proposed that the contact between the droplet and the solid surface represents a three-phase contact involving solid–liquid–gas interfaces. From this, he derived the corresponding contact angle formula [ 42 ].

where

is the actual contact angle,

is the contact angle of the droplet on a smooth surface, i.e., is the intrinsic contact angle,

is the contact angle of the droplet with the gas,

is the contact area,

is the roughness of the water droplet with the solid on the solid–liquid contact surface as a percentage of the projected area of the solid–liquid contact surface, then

is the contact area of the water droplet with the gas on the solid–liquid contact surface as a percentage of the projected area of the solid–liquid contact surface.…”

Section: Methodsmentioning

confidence: 99%

Preparation of Polytetrafluoroethylene Superhydrophobic Materials by Femtosecond Laser Processing Technology

Zhou,

Hu,

Huang

et al. 2023

Polymers

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In recent years, superhydrophobic surfaces have attracted significant attention due to their promising applications, especially in ice prevention, reduction in air resistance, and self-cleaning. This study utilizes femtosecond laser processing technology to prepare different surface microstructures on polytetrafluoroethylene (PTFE) surfaces. Through experiments, it investigates the relationship between the solid–liquid contact ratio and surface hydrophobicity. The shape of water droplets on different microstructure surfaces is simulated using ANSYS, and the relationship between surface microstructures and hydrophobicity is explored in the theoretical model. A superhydrophobic surface with a contact angle of up to 166° was obtained by machining grooves with different spacings in polytetrafluoroethylene sheets with femtosecond laser technology. Due to the micro- and nanostructures on the surface, the oleophobicity of the processed oleophilic PTFE surface is enhanced.

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“…Dong et al synthesized a series of soft and deformable gels to prepare nanogel calcite composites (Figure 6r). [ 149 ] The nanogel particles with different cross‐linking degrees are embedded in calcite. Di Profio et al designed a hydrogel composite membrane (HCM)‐based strategy to regulate mineral growth.…”

Section: Biomimetic Synthesis Strategies Of Hierarchical Structurementioning

confidence: 99%

mentioning

confidence: 99%

Understanding Hierarchical Structure Construction Strategies and Biomimetic Design Principles: A Review

et al. 2023

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Organisms use gene and cell engineering to tailor the mineralization process and synthesize structure composites with special functions and favorable properties. This spurs scientists to design functional materials based on learning from nature. Herein, a systematic review of the biomimetic synthesis and hierarchical structure design of calcium carbonate–based minerals is presented. First, biomimetic synthesis strategies, including additive‐induced, template‐oriented, and gel‐mediated routes to direct the construction of the hierarchical structure, are reviewed. The molecular‐recognition technique and directional assembly pathway are then summarized to precisely describe the interactions between inorganic minerals and organic matter, and direct the mineral growth. Next, the underlying mineralization mechanisms governing the evolution of the complex morphology and structure are discussed. Nonclassical pathways that control mineral growth, including the theories of the amorphous phase, oriented attachment, mesocrystal formation, and liquid precursor, are concluded. Finally, herein, the applications of calcium carbonate–based minerals are discussed. Unique hierarchical structure endows minerals with special functions, including optical performance, biomedical applications, and environmental and ecological restoration. Overall, in this report, the biomimetic synthesis of calcium carbonate–based minerals is reviewed, covering the fundamental principles, construction of the hierarchical structure, underlying mechanisms of mineral growth, and functional designs.

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Controlled Deformation of Soft Nanogel Particles Generates Artificial Biominerals with Ordered Internal Structure

Cited by 11 publications

References 65 publications

Interfacial Supra-Assembly of Copolymer Nanoparticles Enables the Formation of Nanocomposite Crystals with a Tunable Internal Structure

Interfacial Supra-Assembly of Copolymer Nanoparticles Enables the Formation of Nanocomposite Crystals with a Tunable Internal Structure

Preparation of Polytetrafluoroethylene Superhydrophobic Materials by Femtosecond Laser Processing Technology

Understanding Hierarchical Structure Construction Strategies and Biomimetic Design Principles: A Review

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