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Mao X, Ding X, Wang Q, Sun X, Qin L, Huang F, Wen L, Xiang X. Oriented Self-assembly of Flexible MOFs Nanocrystals into Anisotropic Superstructures with Homogeneous Hydrogels Behaviors. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023:e2308739. [PMID: 38054629 DOI: 10.1002/smll.202308739] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2023] [Revised: 11/09/2023] [Indexed: 12/07/2023]
Abstract
Building of metal-organic frameworks (MOFs) homogeneous hydrogels made by spontaneous crystallization remains a significant challenge. Inspired by anisotropically structured materials in nature, an oriented super-assembly strategy to construct micro-scale MOFs superstructure is reported, in which the strong intermolecular interactions between zirconium-oxygen (Zr─O) cluster and glutamic acid are utilized to drive the self-assembly of flexible nanoribbons into pumpkin-like microspheres. The confined effect between water-flexible building blocks and crosslinked hydrogen networks of superstructures achieved a mismatch transformation of MOFs powders into homogeneous hydrogels. Importantly, the elastic and rigid properties of hydrogels can be simply controlled by precise modulation of coordination and self-assembly for anisotropic superstructure. Experimental results and theoretical calculations demonstrates that MOFs anisotropic superstructure exhibits dynamic double networks with a superior water harvesting capacity (119.73 g g-1 ) accompanied with heavy metal removal (1331.67 mg g-1 ) and strong mechanical strength (Young's modulus of 0.3 GPa). The study highlights the unique possibility of tailoring MOFs superstructure with homogeneous hydrogel behavior for application in diverse fields.
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Affiliation(s)
- Xiaoyan Mao
- Center for Membrane Separation and Water Science & Technology, State Key Lab Base of Green Chemical Synthesis Technology, Zhejiang University of Technology, Hangzhou, 310014, China
| | - Xinqi Ding
- College of Food Science and Technology, Key Laboratory of Marine Fishery Resources Exploitment & Utilization, Zhejiang University of Technology, Hangzhou, 310014, China
| | - Qi Wang
- Marine Academy of Zhejiang Province, Hangzhou, 310014, China
| | - Xiping Sun
- Center for Membrane Separation and Water Science & Technology, State Key Lab Base of Green Chemical Synthesis Technology, Zhejiang University of Technology, Hangzhou, 310014, China
| | - Lei Qin
- Center for Membrane Separation and Water Science & Technology, State Key Lab Base of Green Chemical Synthesis Technology, Zhejiang University of Technology, Hangzhou, 310014, China
| | - Fei Huang
- Center for Membrane Separation and Water Science & Technology, State Key Lab Base of Green Chemical Synthesis Technology, Zhejiang University of Technology, Hangzhou, 310014, China
| | - Luhong Wen
- Research Institute of Advanced Technologies, Ningbo University, Ningbo, 315211, China
| | - Xingwei Xiang
- College of Food Science and Technology, Key Laboratory of Marine Fishery Resources Exploitment & Utilization, Zhejiang University of Technology, Hangzhou, 310014, China
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Qiao Z, Ding J, Wu C, Zhou T, Wu K, Zhang Y, Xiao Z, Wei D, Sun J, Fan H. One-Pot Synthesis of Bi 2 S 3 /TiO 2 /rGO Heterostructure with Red Light-Driven Photovoltaic Effect for Remote Electrotherapy-Assisted Wound Repair. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2206231. [PMID: 36464643 DOI: 10.1002/smll.202206231] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/10/2022] [Indexed: 06/17/2023]
Abstract
The past decades have witnessed the rational design of novel functional nanomaterials and the potential to revolutionize many applications. With the increasing focus on electronic biological processes, novel photovoltaic nanomaterials are highly expectable for empowering new therapeutic strategies such as establishing a link between endogenous electric field (EEF) and electrotherapy. Compared to traditional invasive stimulation, the light-initiating strategy has the advantages of non-invasion, non-power supply, and precise controllability. Whereas, common photoactivated materials require short-wavelength light excitation accompanied by poor tissue penetration and biohazard. Herein, by the construction of p-n heterostructured Bi2 S3 /TiO2 /rGO (BTG) nanoparticles, broadener light absorption and higher light conversion than regular UV excitation are realized. Simultaneously, the photoelectric performance of BTG heterostructure, as well as the synergistic effect of Bi2 S3 morphology, are revealed. Besides, the rationally designed biomimetic hydrogel matrix consisting of collagen and hyaluronic acid provides appropriate bioactivity, interface adhesion, mechanical matching, and electron transfer. Therefore, the photovoltaic BTG-loaded matrix provides a platform of light-driven electrical stimulation, coupling the EEF to modulate the electrophysiological and regeneration microenvironment. The implementation of photoelectric stimulation holds broad prospects for non-drug therapy and electrical-related biological process modulation including osseointegration, nerve regeneration, electronic skin, and wound healing.
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Affiliation(s)
- Zi Qiao
- National Engineering Research Center for Biomaterials, College of Biomedical Engineering, Sichuan University, Chengdu, 610064, P. R. China
| | - Jie Ding
- National Engineering Research Center for Biomaterials, College of Biomedical Engineering, Sichuan University, Chengdu, 610064, P. R. China
| | - Chengheng Wu
- National Engineering Research Center for Biomaterials, College of Biomedical Engineering, Sichuan University, Chengdu, 610064, P. R. China
- Institute of Regulatory Science for Medical Devices, Sichuan University, Chengdu, 610065, P. R. China
| | - Ting Zhou
- National Engineering Research Center for Biomaterials, College of Biomedical Engineering, Sichuan University, Chengdu, 610064, P. R. China
| | - Kai Wu
- National Engineering Research Center for Biomaterials, College of Biomedical Engineering, Sichuan University, Chengdu, 610064, P. R. China
| | - Yusheng Zhang
- National Engineering Research Center for Biomaterials, College of Biomedical Engineering, Sichuan University, Chengdu, 610064, P. R. China
| | - Zhanwen Xiao
- National Engineering Research Center for Biomaterials, College of Biomedical Engineering, Sichuan University, Chengdu, 610064, P. R. China
| | - Dan Wei
- National Engineering Research Center for Biomaterials, College of Biomedical Engineering, Sichuan University, Chengdu, 610064, P. R. China
| | - Jing Sun
- National Engineering Research Center for Biomaterials, College of Biomedical Engineering, Sichuan University, Chengdu, 610064, P. R. China
| | - Hongsong Fan
- National Engineering Research Center for Biomaterials, College of Biomedical Engineering, Sichuan University, Chengdu, 610064, P. R. China
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