Chengyuan Sun

Harbin Institute of Technology

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Zhen Zheng

Shanghai Jiao Tong University

Dandan Zhu

Shanghai Jiao Tong University

Kun Lei

Chinese Research Academy of Environmental Sciences

Chongchong Yang

Hebei Agricultural University

Xinling Wang

First Affiliated Hospital of Henan University

Xinling Wang

Shanghai Jiao Tong University

Haiyan Jia

École Polytechnique Fédérale de Lausanne

Yunlong Sun

Dalian Institute of Chemical Physics

Xinling Wang

Shanghai Jiao Tong University

Buyun Chen

Beihang University

Cooperative Institutions

Shanghai Jiao Tong University

Chinese Academy of Sciences

State Key Laboratory of Metal Matrix Composites

Huazhong University of Science and Technology

Sichuan University

Wuhan University of Technology

Harbin Institute of Technology

China Electronics Technology Group Corporation

Metal Matrix Cast Composites (United States)

Wuhan University

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A Topological Stitching Strategy for Biocompatible Wet Adhesion Using Mussel‐Inspired Polyurethane

Advanced Materials Interfaces (2021)

Buyun Chen Kun Lei Dandan Zhu Chongchong Yang Chengyuan Sun

Abstract The biomedical and surgical applications of hydrogels demand effective methods to adhere hydrogels to diverse substrates including living tissues. Here a mussel mimetic polyurethane as topological suture material for tough adhesion of hydrogels by introducing catechol moieties into polymer chains is presented. Solution of the stitching polyurethane can be injected onto the surface of a hydrogel, followed by diffusing spontaneously into the hydrogel, then get triggered by oxidant for in situ gelation. Oxidative cross‐linkage of catechol‐modified polyurethane after penetration into hydrogels or living tissues can establish enough covalently entangled networks to afford desired adhesion strength. The mussel mimetic polyurethane demonstrates excellent adhesion strength of hydrogels to versatile substrates including inorganics, polymers, and biomaterials, with no requirements for specific functional groups or chemical modification. The adhesion energy achieved by the topological stitching strategy can reach up to 350 J m −2 . Moreover, the stitching polymer shows potential for debonding under the catalysis of elastase. This work will possibly become a promising strategy candidate for adhesion in wet environments.

Image stitching

Biocompatibility

10.1002/admi.202100657

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Citations (13)

Bio-based visual optical pressure-responsive sensor

Carbohydrate Polymers (2021)

Chengyuan Sun Dandan Zhu Haiyan Jia Chongchong Yang Zhen Zheng

Structural Coloration

Polyacrylamide

10.1016/j.carbpol.2021.117823

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Citations (21)

The Numerical Simulations and Experimental Study of an 8-Inch SiC Single Crystal with Reduced BPD Density

Materials (2024)

Chengyuan Sun Yunfei Shang Zuotao Lei Yujian Wang Hao Xue

The basal plane dislocation (BPD) density is one of the most important defects affecting the application of SiC wafers. In this study, numerical simulations and corresponding experiments were conducted to investigate the influence of cooling processes, seed-bonding methods, and graphite crucible materials on the BPD density in an 8-inch N-type 4H-SiC single crystal grown by the physical vapor transport (PVT) method. The results showed that the BPD density could be effectively reduced by increasing the cooling rate, optimizing the seed-bonding method, and adopting a graphite crucible with a similar coefficient of thermal expansion as the SiC single crystal. The BPD density in the experiments showed that a high cooling rate reduced the BPD density from 4689 cm

Crucible (geodemography)

Crystal (programming language)

10.3390/ma17102192

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Citations (1)

Thermoreversible Structurally Recoverable Dual‐Network Elastomer Hydrogel

Macromolecular Materials and Engineering (2019)

Kun Lei Chengyuan Sun Chongchong Yang Zhen Zheng Xinling Wang

Abstract Comprising a hydrogen bond crosslinked agarose (Aga) network and a covalently crosslinked hydroxyethyl polyacrylate network, a simple, easily controlled one‐pot construction of agarose/hydroxyethyl polyacrylate (Aga/PHEA) double network (DN) elastomer hydrogel is developed. The Aga/PHEA DN gels combining the strengths of both hydrogel and elastomer indicate excellent fatigue resistance, toughness together with rapid, high recoverable rate. The compression strength, tensile strength, and toughness of DN gels can reach 41 MPa, 1.0 MPa, and 6.7 MJ m −3 . Due to the thermoreversible feature of agarose, the gel displays an excellent recoverable ability with the elastic modulus recovery of 93% and the energy loss recovery of 90%, respectively, after heating the compressed and released gels. Interestingly, the gels indicate a typical rubber behavior with a small and almost overlapped hysteresis loop and excellent fatigue resistance by simply regulating the content of the second network HEA. Besides, the in vitro MTT and cell adhesion tests confirm the good biological compatibility of the gels. The active hydroxyl groups in the gel can be bonded with functionalized molecule for different needs. The studies reveal that the DN elastomer hydrogels with excellent mechanical properties, biocompatibility, and functionalization will significantly provide a new road to gel researches and applications.

Agarose

Biocompatibility

10.1002/mame.201900633

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Citations (9)

Quantitative analysis based on atomic force microscopy characterization of interfacial properties between carbon fibers and epoxy resin subjected to hygrothermal and thermal treatments

Composites Science and Technology (2020)

Chongchong Yang Dandan Zhu Futing Yang Qianli Liu Chengyuan Sun

Shrinkage

Thermal Stability

Matrix (chemical analysis)

Carbon fibers

10.1016/j.compscitech.2020.108278

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Citations (20)

Electrothermally responsive self-healing for carbon fiber/epoxy interphase based on Diels-Alder adducts

Composites Science and Technology (2021)

Chongchong Yang Dandan Zhu Chengyuan Sun Buyun Chen Yinghao Li

Interphase

Thermosetting polymer

Self-healing material

10.1016/j.compscitech.2021.108767

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Citations (29)

Self-healing hydrogels with stimuli responsiveness based on acylhydrazone bonds

Polymer (2018)

Chengyuan Sun Haiyan Jia Kun Lei Dandan Zhu Yahan Gao

Hydrazone

10.1016/j.polymer.2018.11.051

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Citations (63)

Correction to “Fabrication of a Controlled in Situ Forming Polypeptide Hydrogel with a Good Biological Compatibility and Shapeable Property”

ACS Applied Bio Materials (2024)

Kun Lei Yunlong Sun Chengyuan Sun Dandan Zhu Zhen Zheng

10.1021/acsabm.4c01465

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Citations (0)

Bio-adhesive catechol-modified chitosan wound healing hydrogel dressings through glow discharge plasma technique

Chemical Engineering Journal (2021)

Chengyuan Sun Xuelian Zeng Shihang Zheng Yulan Wang Zhiyu Li

Biocompatibility

Haemolysis

10.1016/j.cej.2021.130843

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Citations (139)

Bioinspired Hydrophobic Cellulose Nanocrystal Composite Films as Organic-Solvent-Responsive Structural-Color Rewritable Papers

ACS Applied Materials & Interfaces (2020)

Chengyuan Sun Dandan Zhu Haiyan Jia Chongchong Yang Zhen Zheng

Lots of beetles, moths, and birds in the natural world present stunning unique structural colors as well as excellent hydrophobic performances. Herein, a novel bioinspired variable structural-color film with organic-solvent responsiveness and surface hydrophobicity was fabricated. Cellulose nanocrystals (CNCs) provided structural color with left-handed helicity. PEG-PPG-PEG triblock copolymers (PPPTCs) were blended with CNCs, giving rise to the organic-solvent-responsive structural color and wider red-shift window of the reflectance peak. The color of the film could be regulated repeatedly under the stimulus of cyclohexanone with an obvious red shift up to 107 nm, corresponding to a macroscopic color change from blue to yellow. Low-surface-energy compound hexadecyltrimethoxysilane (HDTMS) was covalently grafted on the surface in a one-step method to introduce hydrophobicity, successfully preventing the effect of water on the ordered nanostructure. Based on the bionics principle, the as-prepared CNC/PPPTC nanocomposite films with variable structural colors and hydrophobicity are beneficial to their prospective applications in display screens, rewritable hydrophobic structural-color-changing paper, biomimetic sensors, and so forth.

Structural Coloration

10.1021/acsami.0c04785

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Citations (46)