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Yu J, Marchesi D'Alvise T, Harley I, Krysztofik A, Lieberwirth I, Pula P, Majewski PW, Graczykowski B, Hunger J, Landfester K, Kuan SL, Shi R, Synatschke CV, Weil T. Ion and Molecular Sieving with Ultrathin Polydopamine Nanomembranes. Adv Mater 2024:e2401137. [PMID: 38742799 DOI: 10.1002/adma.202401137] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/22/2024] [Revised: 05/03/2024] [Indexed: 05/16/2024]
Abstract
In contrast to biological cell membranes, it is still a major challenge for synthetic membranes to efficiently separate ions and small molecules, due to their similar sizes in the sub-nanometer range. Inspired by biological ion channels with their unique channel wall chemistry that facilitates ion sieving by ion-channel interactions, we report here the first free-standing, ultrathin (10-17 nm) nanomembranes composed entirely of polydopamine (PDA) as ion and molecular sieves. These nanomembranes are obtained via an easily scalable electropolymerization strategy and provide nanochannels with various amine and phenolic hydroxyl groups that offer a favorable chemical environment for ion-channel electrostatic and hydrogen bond interactions. They exhibit remarkable selectivity for monovalent ions over multivalent ions and larger species with K+/Mg2+ of ≈4.2, K+/[Fe(CN)6]3- of ≈10.3, and K+/Rhodamine B of ≈273.0 in a pressure-driven process, as well as cyclic reversible pH-responsive gating properties. Infrared spectra reveal hydrogen bond formation between hydrated multivalent ions and PDA, which prevents the transport of multivalent ions and facilitates high selectivity. We propose chemically rich, free-standing, and pH-responsive PDA nanomembranes with specific interaction sites as customizable high-performance sieves for a wide range of challenging separation requirements. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Jiyao Yu
- Max Planck Institute for Polymer Research, Ackermannweg 10, 55128, Mainz, Germany
| | | | - Iain Harley
- Max Planck Institute for Polymer Research, Ackermannweg 10, 55128, Mainz, Germany
| | - Adam Krysztofik
- Faculty of Physics, Adam Mickiewicz University, Uniwersytetu Poznanskiego 2, Poznan, 61-614, Poland
| | - Ingo Lieberwirth
- Max Planck Institute for Polymer Research, Ackermannweg 10, 55128, Mainz, Germany
| | - Przemyslaw Pula
- Department of Chemistry, University of Warsaw, Ludwika Pasteura 1, Warsaw, 02-093, Poland
| | - Pawel W Majewski
- Department of Chemistry, University of Warsaw, Ludwika Pasteura 1, Warsaw, 02-093, Poland
| | - Bartlomiej Graczykowski
- Faculty of Physics, Adam Mickiewicz University, Uniwersytetu Poznanskiego 2, Poznan, 61-614, Poland
| | - Johannes Hunger
- Max Planck Institute for Polymer Research, Ackermannweg 10, 55128, Mainz, Germany
| | - Katharina Landfester
- Max Planck Institute for Polymer Research, Ackermannweg 10, 55128, Mainz, Germany
| | - Seah Ling Kuan
- Max Planck Institute for Polymer Research, Ackermannweg 10, 55128, Mainz, Germany
| | - Rachel Shi
- Max Planck Institute for Polymer Research, Ackermannweg 10, 55128, Mainz, Germany
| | | | - Tanja Weil
- Max Planck Institute for Polymer Research, Ackermannweg 10, 55128, Mainz, Germany
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Xie Z, Hao L, Liu J, Guo C, Jia Q, Wu S, Li F, Li C, Li Z. pH-responsive albumin-mimetic synthetic nanoprobes for magnetic resonance/fluorescence imaging of thyroid cancer. J Biomed Mater Res A 2024. [PMID: 38699811 DOI: 10.1002/jbm.a.37731] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2023] [Revised: 03/31/2024] [Accepted: 04/24/2024] [Indexed: 05/05/2024]
Abstract
The combination of magnetic resonance and fluorescence imaging in dual-modality imaging not only resolves the limitations of conventional single molecular imaging techniques in terms of specificity, sensitivity, and resolution but also expands the possibilities of molecular imaging techniques in diagnostics and therapeutic monitoring. Herein, a novel pH-responsive magnetic resonance/near-infrared fluorescence (MR/NIRF) nanoprobe (MnO2@BSA-Cy5.5) was successfully prepared by biomineralizing manganese dioxide (MnO2) with bovine serum albumin (BSA) while coupling fluorescent dye Cy5.5 for precise tumor detection and visualization. The synthesized MnO2@BSA-Cy5.5 nanoprobes were spherical particles of approximately 22.62 ± 3.31 nm in size, and their relaxation rates and T1 imaging signals were activated-enhanced in an acidic environment. Cytotoxicity assay and hematoxylin and eosin staining demonstrated that MnO2@BSA-Cy5.5 had low cytotoxicity and good biocompatibility. More importantly, active targeting via solid tumor albumin-binding protein receptor and enhanced permeability and retention effect, the probe can be specifically aggregated to the tumor site of the 8305C tumor model and exhibit excellent MR/NIRF imaging properties. Our results show that MnO2@BSA-Cy5.5 has high resolution and sensitivity in tumor imaging and is expected to be applied as an MR/NIRF contrast agent for accurate diagnosis of thyroid cancer.
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Affiliation(s)
- Zhengrong Xie
- Department of Medical Technology, Qiqihar Medical University, Qiqihar, Heilongjiang, China
| | - Liguo Hao
- Department of Medical Technology, Qiqihar Medical University, Qiqihar, Heilongjiang, China
| | - Jinren Liu
- Department of Medical Technology, Qiqihar Medical University, Qiqihar, Heilongjiang, China
| | - Changzhi Guo
- Department of Medical Technology, Qiqihar Medical University, Qiqihar, Heilongjiang, China
| | - Qiushi Jia
- Department of Medical Technology, Qiqihar Medical University, Qiqihar, Heilongjiang, China
| | - Shuang Wu
- Department of Medical Technology, Qiqihar Medical University, Qiqihar, Heilongjiang, China
| | - Fulin Li
- Department of Medical Technology, Qiqihar Medical University, Qiqihar, Heilongjiang, China
| | - Chunxiang Li
- Department of Nuclear Medicine, The First Affiliated Hospital of Qiqihar Medical University, Qiqihar, Heilongjiang, China
| | - Zhongyuan Li
- Department of Nuclear Medicine, The First Affiliated Hospital of Qiqihar Medical University, Qiqihar, Heilongjiang, China
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Jiang W, Hou X, Qi Y, Wang Z, Liu Y, Gao XJ, Wu T, Guo J, Fan K, Shang W. pH-Activatable Pre-Nanozyme Mediated H 2S Delivery for Endo-Exogenous Regulation of Oxidative Stress in Acute Kidney Injury. Adv Sci (Weinh) 2024; 11:e2303901. [PMID: 38445847 PMCID: PMC11095207 DOI: 10.1002/advs.202303901] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/14/2023] [Revised: 11/19/2023] [Indexed: 03/07/2024]
Abstract
Oxidative stress induced by excess reactive oxygen species (ROS) is a primary pathogenic cause of acute kidney injury (AKI). Development of an effective antioxidation system to mitigate oxidative stress for alleviating AKI remains to be investigated. This study presents the synthesis of an ultra-small Platinum (Pt) sulfur cluster (Pt5.65S), which functions as a pH-activatable prefabricated nanozyme (pre-nanozyme). This pre-nanozyme releases hydrogen sulfide (H2S) and transforms into a nanozyme (Ptzyme) that mimics various antioxidant enzymes, including superoxide dismutase and catalase, within the inflammatory microenvironment. Notably, the Pt5.65S pre-nanozyme exhibits an endo-exogenous synergy-enhanced antioxidant therapeutic mechanism. The Ptzyme reduces oxidative damage and inflammation, while the released H2S gas promotes proneurogenesis by activating Nrf2 and upregulating the expression of antioxidant molecules and enzymes. Consequently, the Pt5.65S pre-nanozyme shows cytoprotective effects against ROS/reactive nitrogen species (RNS)-mediated damage at remarkably low doses, significantly improving treatment efficacy in mouse models of kidney ischemia-reperfusion injury and cisplatin-induced AKI. Based on these findings, the H2S-generating pre-nanozyme may represent a promising therapeutic strategy for mitigating inflammatory diseases such as AKI and others.
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Affiliation(s)
- Wei Jiang
- Department of Kidney TransplantationThe First Affiliated Hospital of Zhengzhou UniversityZhengzhou450001China
- Nanozyme Medical CenterSchool of Basic Medical SciencesAcademy of Medical ScienceZhengzhou UniversityZhengzhou450001China
| | - Xinyue Hou
- Department of Kidney TransplantationThe First Affiliated Hospital of Zhengzhou UniversityZhengzhou450001China
| | - Yuanbo Qi
- Department of Kidney TransplantationThe First Affiliated Hospital of Zhengzhou UniversityZhengzhou450001China
| | - Zhigang Wang
- Department of Kidney TransplantationThe First Affiliated Hospital of Zhengzhou UniversityZhengzhou450001China
| | - Ying Liu
- Nanozyme Medical CenterSchool of Basic Medical SciencesAcademy of Medical ScienceZhengzhou UniversityZhengzhou450001China
| | - Xuejiao J. Gao
- College of Chemistry and Chemical EngineeringJiangxi Normal UniversityNanchang330022P. R. China
| | - Tingting Wu
- Nanozyme Medical CenterSchool of Basic Medical SciencesAcademy of Medical ScienceZhengzhou UniversityZhengzhou450001China
| | - Jiancheng Guo
- Department of Kidney TransplantationThe First Affiliated Hospital of Zhengzhou UniversityZhengzhou450001China
| | - Kelong Fan
- Nanozyme Medical CenterSchool of Basic Medical SciencesAcademy of Medical ScienceZhengzhou UniversityZhengzhou450001China
- CAS Engineering Laboratory for NanozymeKey Laboratory of Protein and Peptide PharmaceuticalsInstitute of BiophysicsChinese Academy of SciencesBeijing100101China
- University of Chinese Academy of SciencesBeijing101408China
| | - Wenjun Shang
- Department of Kidney TransplantationThe First Affiliated Hospital of Zhengzhou UniversityZhengzhou450001China
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Hu Q, Du Y, Bai Y, Xing D, Lang S, Li K, Li X, Nie Y, Liu G. Sprayable Zwitterionic Antibacterial Hydrogel With High Mechanical Resilience and Robust Adhesion for Joint Wound Treatment. Macromol Rapid Commun 2024; 45:e2300683. [PMID: 38237945 DOI: 10.1002/marc.202300683] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2023] [Revised: 01/14/2024] [Indexed: 01/24/2024]
Abstract
Wound healing in movable parts, including the joints and neck, remains a critical challenge due to frequent motions and poor flexibility of dressings, which may lead to mismatching of mechanical properties and poor fitting between dressings and wounds; thus, increasing the risk of bacterial infection. This study proposes a sprayable zwitterionic antibacterial hydrogel with outstanding flexibility and desirable adhesion. This hydrogel precursor is fabricated by combining zwitterionic sulfobetaine methacrylate (SBMA) with poly(sulfobetaine methacrylate-co-dopamine methacrylamide)-modified silver nanoparticles (PSBDA@AgNPs) through robust electrostatic interactions. About 150 s of exposure to UV light, the SBMA monomer polymerizes to form PSB chains entangled with PSBDA@AgNPs, transformed into a stable and adhesion PSB-PSB@Ag hydrogel at the wound site. The resulting hydrogel has adhesive strength (15-38 kPa), large tensile strain (>400%), suitable shape adaptation, and excellent mechanical resilience. Moreover, the hydrogel displays pH-responsive behavior; the acidic microenvironment at the infected wound sites prompts the hydrogel to rapidly release AgNPs and kill bacteria. Further, the healing effect of the hydrogel is demonstrated on the rat neck skin wound, showing improved wound closing rate due to reduced inflammation and enhanced angiogenesis. Overall, the sprayable zwitterionic antibacterial hydrogel has significant potential to promote joint skin wound healing.
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Affiliation(s)
- Qinsheng Hu
- Department of Orthopedic Surgery and Orthopedic Research Institute, West China Hospital, Sichuan University, Chengdu, 610041, China
- Department of Orthopedic Surgery, Yaan People's Hospital, Yaan, 625000, China
| | - Yangrui Du
- College of Biomass Science and Engineering, Sichuan University, Chengdu, 610065, China
| | - Yangjing Bai
- West China School of Nursing, Sichuan University/Department of Cardiovascular Surgery, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Dandan Xing
- College of Biomass Science and Engineering, Sichuan University, Chengdu, 610065, China
| | - Shiying Lang
- College of Biomass Science and Engineering, Sichuan University, Chengdu, 610065, China
| | - Kaijun Li
- College of Biomass Science and Engineering, Sichuan University, Chengdu, 610065, China
| | - Xinyun Li
- Dazhou Hospital of Integrated Traditional Chinese and Western Medicine, Dazhou, Sichuan, 635000, China
| | - Yong Nie
- Department of Orthopedic Surgery and Orthopedic Research Institute, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Gongyan Liu
- College of Biomass Science and Engineering, Sichuan University, Chengdu, 610065, China
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Li X, Yue R, Guan G, Zhang C, Zhou Y, Song G. Recent development of pH-responsive theranostic nanoplatforms for magnetic resonance imaging-guided cancer therapy. Exploration (Beijing) 2023; 3:20220002. [PMID: 37933379 PMCID: PMC10624388 DOI: 10.1002/exp.20220002] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/24/2022] [Accepted: 09/16/2022] [Indexed: 11/08/2023]
Abstract
The acidic characteristic of the tumor site is one of the most well-known features and provides a series of opportunities for cancer-specific theranostic strategies. In this regard, pH-responsive theranostic nanoplatforms that integrate diagnostic and therapeutic capabilities are highly developed. The fluidity of the tumor microenvironment (TME), with its temporal and spatial heterogeneities, makes noninvasive molecular magnetic resonance imaging (MRI) technology very desirable for imaging TME constituents and developing MRI-guided theranostic nanoplatforms for tumor-specific treatments. Therefore, various MRI-based theranostic strategies which employ assorted therapeutic modes have been drawn up for more efficient cancer therapy through the raised local concentration of therapeutic agents in pathological tissues. In this review, we summarize the pH-responsive mechanisms of organic components (including polymers, biological molecules, and organosilicas) as well as inorganic components (including metal coordination compounds, metal oxides, and metal salts) of theranostic nanoplatforms. Furthermore, we review the designs and applications of pH-responsive theranostic nanoplatforms for the diagnosis and treatment of cancer. In addition, the challenges and prospects in developing theranostic nanoplatforms with pH-responsiveness for cancer diagnosis and therapy are discussed.
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Affiliation(s)
- Xu Li
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical EngineeringHunan UniversityChangshaP. R. China
| | - Renye Yue
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical EngineeringHunan UniversityChangshaP. R. China
| | - Guoqiang Guan
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical EngineeringHunan UniversityChangshaP. R. China
| | - Cheng Zhang
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical EngineeringHunan UniversityChangshaP. R. China
| | - Ying Zhou
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical EngineeringHunan UniversityChangshaP. R. China
| | - Guosheng Song
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical EngineeringHunan UniversityChangshaP. R. China
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