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Shu J, Xiong W, Zhang R, Ma S, Zhou K, Wang X, Yan F, Huang D, Li J, Wu Y, He J. Glycan-selective in-situ growth of thermoresponsive polymers for thermoprecipitation and enrichment of N-glycoprotein/glycopeptides. Talanta 2023; 253:123956. [PMID: 36167012 DOI: 10.1016/j.talanta.2022.123956] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Revised: 09/13/2022] [Accepted: 09/19/2022] [Indexed: 12/13/2022]
Abstract
In view of the biological significance and micro-heterogeneity of protein glycosylation for human health, specific enrichment of N-glycosylated proteins/peptides from complex biological samples is a prerequisite for the discovery of disease biomarkers and clinical diagnosis. In this work, we propose a "grafting-from" N-glycoprotein enriching method based on the in-situ growth of thermoresponsive polymer brushes from the N-glycosylated site of proteins. The initiator was first attached to the pre-oxidized glycan moieties by hydrazide chemistry, from which the thermoresponsive polymers can be grown to form giant protein-polymer conjugates (PPC). The thermosensitive PPC can be precipitated and separated by raising the temperature to above its lower critical solubility temperature (LCST). Mass spectrometry verified 210 N-glycopeptides corresponding to 136 N-glycoproteins in the rabbit serum. These results demonstrate the capability of the tandem thermoprecipitation strategy to enrich and separate N-glycoprotein/glycopeptide. Due to its simplicity and efficiency specifically, this method holds the potential for identifying biomarkers from biological samples in N-glycoproteome analysis.
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Affiliation(s)
- Jingjing Shu
- Research Institute of Photocatalysis, College of Biological Science and Engineering, Fuzhou University, 2 Xueyuan Road, Fuzhou, 350108, China
| | - Wenli Xiong
- Research Institute of Photocatalysis, College of Biological Science and Engineering, Fuzhou University, 2 Xueyuan Road, Fuzhou, 350108, China
| | - Ran Zhang
- Central Laboratory of Health Quarantine, International Travel Health Care Center, Shenzhen Customs District. 1011 Fuqiang Road, Shenzhen, 518045, China
| | - Shanyun Ma
- Research Institute of Photocatalysis, College of Biological Science and Engineering, Fuzhou University, 2 Xueyuan Road, Fuzhou, 350108, China
| | - Kaiqiang Zhou
- Research Institute of Photocatalysis, College of Biological Science and Engineering, Fuzhou University, 2 Xueyuan Road, Fuzhou, 350108, China
| | - Xuwei Wang
- Research Institute of Photocatalysis, College of Biological Science and Engineering, Fuzhou University, 2 Xueyuan Road, Fuzhou, 350108, China
| | - Fen Yan
- Research Institute of Photocatalysis, College of Biological Science and Engineering, Fuzhou University, 2 Xueyuan Road, Fuzhou, 350108, China
| | - Da Huang
- Research Institute of Photocatalysis, College of Biological Science and Engineering, Fuzhou University, 2 Xueyuan Road, Fuzhou, 350108, China
| | - Jianhua Li
- Research Institute of Photocatalysis, College of Biological Science and Engineering, Fuzhou University, 2 Xueyuan Road, Fuzhou, 350108, China
| | - Yuanzi Wu
- Research Institute of Photocatalysis, College of Biological Science and Engineering, Fuzhou University, 2 Xueyuan Road, Fuzhou, 350108, China.
| | - Jian'an He
- Central Laboratory of Health Quarantine, International Travel Health Care Center, Shenzhen Customs District. 1011 Fuqiang Road, Shenzhen, 518045, China.
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Living fabrication of functional semi-interpenetrating polymeric materials. Nat Commun 2021; 12:3422. [PMID: 34103521 PMCID: PMC8187375 DOI: 10.1038/s41467-021-23812-7] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2020] [Accepted: 05/11/2021] [Indexed: 01/02/2023] Open
Abstract
Cell-mediated living fabrication has great promise for generating materials with versatile, programmable functions. Here, we demonstrate the engineering of living materials consisting of semi-interpenetrating polymer networks (sIPN). The fabrication process is driven by the engineered bacteria encapsulated in a polymeric microcapsule, which serves as the initial scaffold. The bacteria grow and undergo programmed lysis in a density-dependent manner, releasing protein monomers decorated with reactive tags. Those protein monomers polymerize with each other to form the second polymeric component that is interlaced with the initial crosslinked polymeric scaffold. The formation of sIPN serves the dual purposes of enhancing the mechanical property of the living materials and anchoring effector proteins for diverse applications. The material is resilient to perturbations because of the continual assembly of the protein mesh from the monomers released by the engineered bacteria. We demonstrate the adoption of the platform to protect gut microbiota in animals from antibiotic-mediated perturbations. Our work lays the foundation for programming functional living materials for diverse applications.
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Shang C, Fan F. Preparation of ionogel-bonded mesoporous silica and its application in liquid chromatography. NEW J CHEM 2021. [DOI: 10.1039/d1nj03244e] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
A new preparation strategy for stable ionogels on silica obtained by a chemical bonding method and its application in LC.
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Affiliation(s)
- Ce Shang
- E&D Research Institute of Liaohe Oilfield Company, Panjin, 124010, China
| | - Fangbin Fan
- Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- University of Chinese Academy of Sciences, Beijing 100049, China
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Zhao C, Zhou L, Chiao M, Yang W. Antibacterial hydrogel coating: Strategies in surface chemistry. Adv Colloid Interface Sci 2020; 285:102280. [PMID: 33010575 DOI: 10.1016/j.cis.2020.102280] [Citation(s) in RCA: 73] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2020] [Revised: 09/20/2020] [Accepted: 09/24/2020] [Indexed: 10/23/2022]
Abstract
Hydrogels have emerged as promising antimicrobial materials due to their unique three-dimensional structure, which provides sufficient capacity to accommodate various materials, including small molecules, polymers and particles. Coating substrates with antibacterial hydrogel layers has been recognized as an effective strategy to combat bacterial colonization. To prevent possible delamination of hydrogel coatings from substrates, it is crucial to attach hydrogel layers via stronger links, such as covalent bonds. To date, various surface chemical strategies have been developed to introduce hydrogel coatings on different substrates. In this review, we first give a brief introduction of the major strategies for designing antibacterial coatings. Then, we summarize the chemical methods used to fix the antibacterial hydrogel layer on the substrate, which include surface-initiated graft crosslinking polymerization, anchoring the hydrogel layer on the surface during crosslinking, and chemical crosslinking of layer-by-layer coating. The reaction mechanisms of each method and matched pretreatment strategies are systemically documented with the aim of introducing available protocols to researchers in related fields for designing hydrogel-coated antibacterial surfaces.
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Katayama R, Tanaka N, Takagi Y, Shiraishi K, Tanaka Y, Matsumoto A, Kojima C. Characterization of the Hydration Process of Phospholipid-Mimetic Polymers Using Air-Injection-Mediated Liquid Exclusion Methods. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2020; 36:5626-5632. [PMID: 32308005 DOI: 10.1021/acs.langmuir.0c00953] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
2-Methacryloyloxyethyl phosphorylcholine (MPC) polymers including hydrophobic units such as poly(MPC-co-butyl methacrylate) (PMB) and poly(MPC-co-dodecyl methacrylate) (PMD) are used as coating agents for medical devices because of their antifouling effects. In this study, the whole hydration process of MPC polymer-coated surfaces was investigated using air-injection-mediated liquid exclusion (AILE) methods in which the liquid exclusion diameter during air injection was correlated to the water-repelling property. The prejetted and standard AILE methods showed the initial change from a dry to a wet state and the swelling behaviors of the MPC polymers, respectively. The liquid exclusion diameter of the MPC polymer-coated surfaces increased with an increase in the immersion time in various aqueous solutions such as deionized water, phosphate-buffered saline (PBS), and cell culture media. Moreover, the liquid exclusion diameter of the PMD-coated surface was larger than that of the PMB-coated one. Ellipsometry directly indicated the polymer layers swollen in water. Scanning probe microscopy (SPM) revealed that nanosized protuberances were formed in water, especially at the PMD-coated surface. The different swelling behaviors of these MPC polymer-coated surfaces affected the liquid exclusion diameters. Thus, the AILE methods are a powerful tool to elucidate the hydration process in various liquid media.
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Affiliation(s)
- Risa Katayama
- Department of Applied Chemistry, Graduate School of Engineering, Osaka Prefecture University, 1-1, Gakuen-cho, Naka-ku, Sakai, Osaka 599-8531, Japan
- Center for Biosystems Dynamics Research (BDR), RIKEN, 1-3 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Nobuyuki Tanaka
- Center for Biosystems Dynamics Research (BDR), RIKEN, 1-3 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Yusuke Takagi
- Graduate School of Systems Engineering, Kindai University, 1 Takaya-umenobe, Higashihiroshima, Hiroshima 739-2116, Japan
| | - Kohei Shiraishi
- Graduate School of Systems Engineering, Kindai University, 1 Takaya-umenobe, Higashihiroshima, Hiroshima 739-2116, Japan
| | - Yo Tanaka
- Center for Biosystems Dynamics Research (BDR), RIKEN, 1-3 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Akikazu Matsumoto
- Department of Applied Chemistry, Graduate School of Engineering, Osaka Prefecture University, 1-1, Gakuen-cho, Naka-ku, Sakai, Osaka 599-8531, Japan
| | - Chie Kojima
- Department of Applied Chemistry, Graduate School of Engineering, Osaka Prefecture University, 1-1, Gakuen-cho, Naka-ku, Sakai, Osaka 599-8531, Japan
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