1
|
Xiao F, Li Y, Xia Y, Zhang J, Wang C, Li Z, Yang S, Dong S, Wang Y. Uncovering the role of free lanthanum (La 3+) ions and La oligomer on the surface of La (oxy)hydroxide particles for phosphate removal. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 947:174747. [PMID: 39004361 DOI: 10.1016/j.scitotenv.2024.174747] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/20/2024] [Revised: 06/24/2024] [Accepted: 07/11/2024] [Indexed: 07/16/2024]
Abstract
La (oxy)hydroxide-based materials have been recognized as promising adsorbents for aqueous phosphate (P) removal. However, comprehending the adsorption behavior of P onto La (oxy)hydroxide particles remains challenging, given the heterogeneous low-crystalline surface encompassing La oligomers and free La3+ ions. In this study, a hydrogen (H) bond capping method was developed to construct La (oxy)hydroxide oligomers (LHOs) to simulate the low-crystalline La on the surface of La (oxy)hydroxide particles. The P uptake capacity was compared among free La3+ ions, LHOs, and La nanoparticle (La-NP) with maximum capacities of 1967.3 ± 30.8 mg/g, 461.1 ± 53.7 mg/g and 62.5 ± 6.0 mg/g, respectively. The FT-IR, Raman, in situ-XRD and XPS deconvolution analyses revealed that the removal of P by free La3+ ions mainly involve the process of chemical precipitation to form LaPO4·0.5H2O. Conversely, the elimination of P by LHOs is primarily attributed to inner-sphere complexation and hydroxyl exchange effect between LaOOH and P. Based on this study, the free La3+ ions and La oligomers on the surface of La (oxy)hydroxide particles play a primary role in P adsorption. These results also suggest that the successively decreased adsorption capacity of La (oxy)hydroxide-based adsorbents in the continuously adsorption/desorption cycles might be due to the irreversible inactivation and recrystallization of free La3+ ions and La oligomers on the surface.
Collapse
Affiliation(s)
- Feng Xiao
- School of Water Resources and Hydropower Engineering, North China Electric Power University, Beijing 102206, China
| | - Yongqi Li
- School of Water Resources and Hydropower Engineering, North China Electric Power University, Beijing 102206, China
| | - Yuanchen Xia
- School of Water Resources and Hydropower Engineering, North China Electric Power University, Beijing 102206, China
| | - Jianing Zhang
- School of Water Resources and Hydropower Engineering, North China Electric Power University, Beijing 102206, China
| | - Changyu Wang
- School of Water Resources and Hydropower Engineering, North China Electric Power University, Beijing 102206, China
| | - Zihan Li
- School of Water Resources and Hydropower Engineering, North China Electric Power University, Beijing 102206, China
| | - Shaoxia Yang
- School of Water Resources and Hydropower Engineering, North China Electric Power University, Beijing 102206, China
| | - Shuoxun Dong
- School of Water Resources and Hydropower Engineering, North China Electric Power University, Beijing 102206, China.
| | - Yili Wang
- College of Environmental Science and Engineering, Beijing Key Lab for Source Control Technology of Water Pollution, Beijing Forestry University, Beijing 100083, China
| |
Collapse
|
2
|
Liu C, Hu X, Zhou X, Ma Y, Leung PHM, Xin JH, Fei B. Guanidine-containing double-network silks with enhanced tensile and antibacterial property. Int J Biol Macromol 2023:125470. [PMID: 37336382 DOI: 10.1016/j.ijbiomac.2023.125470] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Revised: 06/02/2023] [Accepted: 06/16/2023] [Indexed: 06/21/2023]
Abstract
The bacterial infection of surgical wounds results in prolonged hospitalization and even death of patients, calling for antibacterial function in modern suture products. To tackle this challenge, cationic guanidine-containing copolymer was synthesized, exhibiting antibacterial potency over 5 log reduction against both Gram-positive S. aureus and Gram-negative E. coli. Furthermore, we developed a double-network silk suture by integrating a guanidine-containing copolymer network into the silk fibroin network. This suture exhibited biocidal activity against S. aureus and E. coli, and superior strength compared to the commercial product in both dry and wet conditions. These results may bring general benefits to public health and medical equipment sustainability.
Collapse
Affiliation(s)
- Chang Liu
- School of Fashion and Textiles, The Hong Kong Polytechnic University, Hong Kong
| | - Xin Hu
- School of Fashion and Textiles, The Hong Kong Polytechnic University, Hong Kong
| | - Xiang Zhou
- Department of Science, China Pharmaceutical University, Nanjing 211198, China
| | - Yan Ma
- Jinzhou Central Hospital, Jinzhou, China
| | - Polly H M Leung
- Department of Health Technology and Informatics, The Hong Kong Polytechnic University, Hong Kong
| | - John H Xin
- School of Fashion and Textiles, The Hong Kong Polytechnic University, Hong Kong
| | - Bin Fei
- School of Fashion and Textiles, The Hong Kong Polytechnic University, Hong Kong.
| |
Collapse
|
3
|
Hu C, Heng P, Zeng Y, Zhang Q, Zhao M, Yang Z, He Y. Fast Synthesis of Graphene Oxide-β-Lactam as a Residue-Free Environmental Bacterial Inhibitor. ACS OMEGA 2022; 7:23708-23716. [PMID: 35847294 PMCID: PMC9281299 DOI: 10.1021/acsomega.2c02328] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Common pathogenic bacteria contaminate the environment through various modes of transmission. It is thus crucial to develop simple preparation methods of residue-free environmental disinfectants. β-Lactam antibiotics are frequently prescribed in clinical practice to treat bacterial infections. In this study, we used electrochemical exfoliation to synthesize graphene oxide (GO) with abundant ketene functional groups. A residue-free GO-β-lactam (GOβL) was subsequently obtained by mixing ketene and azomethine-H via a [2 + 2] cycloaddition reaction in the aqueous phase. GOβL has shown broad-spectrum bacterial inhibition against four bacteria (Staphylococcus aureus, Escherichia coli, Salmonella enterica, and Shigella dysenteriae), and it degrades rapidly within 24 h. This study provides a fast and easy method for the synthesis of GOβL, which can be employed as a promising environmental bacteriostatic disinfectant in real-life applications.
Collapse
Affiliation(s)
- Chenyan Hu
- State
Key Laboratory of Southwestern Chinese Medicine Resources, College
of Medical Technology, Chengdu University
of Traditional Chinese Medicine, Chengdu, Sichuan 611137, China
- Department
of Laboratory Medicine, People’s
Hospital of Xinjin District, Chengdu, Sichuan 611430, China
| | - Pengfei Heng
- State
Key Laboratory of Southwestern Chinese Medicine Resources, College
of Medical Technology, Chengdu University
of Traditional Chinese Medicine, Chengdu, Sichuan 611137, China
| | - Yuanyuan Zeng
- State
Key Laboratory of Southwestern Chinese Medicine Resources, College
of Medical Technology, Chengdu University
of Traditional Chinese Medicine, Chengdu, Sichuan 611137, China
| | - Qing Zhang
- Key
Laboratory of Food Biotechnology, School of Food and Biotechnology, Xihua University, Chengdu, Sichuan 610039, China
| | - Meilian Zhao
- State
Key Laboratory of Southwestern Chinese Medicine Resources, College
of Medical Technology, Chengdu University
of Traditional Chinese Medicine, Chengdu, Sichuan 611137, China
| | - Zhongzhu Yang
- State
Key Laboratory of Southwestern Chinese Medicine Resources, College
of Medical Technology, Chengdu University
of Traditional Chinese Medicine, Chengdu, Sichuan 611137, China
| | - Yang He
- State
Key Laboratory of Southwestern Chinese Medicine Resources, College
of Medical Technology, Chengdu University
of Traditional Chinese Medicine, Chengdu, Sichuan 611137, China
| |
Collapse
|
4
|
Zhang L, Shi H, Tan X, Jiang Z, Wang P, Qin J. Ten-Gram-Scale Mechanochemical Synthesis of Ternary Lanthanum Coordination Polymers for Antibacterial and Antitumor Activities. Front Chem 2022; 10:898324. [PMID: 35774860 PMCID: PMC9237552 DOI: 10.3389/fchem.2022.898324] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2022] [Accepted: 04/25/2022] [Indexed: 11/25/2022] Open
Abstract
As rare-earth coordination polymers (CPs) have appreciable antimicrobial properties, ternary lanthanum CPs have been widely synthesized and investigated in recent years. Here, we report convenient, solvent-free reactions between the lanthanum salt and two ligands at mild temperatures that form ternary lanthanum nanoscale CPs with 10-gram-scale. The structural features and morphologies were characterized using a scanning electron microscope (SEM), Fourier transform infrared spectrometer (FT-IR), ultraviolet-visible (UV–Vis), X-ray diffractometer (XRD), X-ray Photoelectron Spectroscopy (XPS), Brunauer–Emmett–Teller (BET), elemental analysis, inductively coupled plasma mass spectrometry (ICP-MS), electrospray ionization mass spectrometry (ESI-MS), nuclear magnetic resonance (NMR), dynamic light scattering (DLS) and analyzer, and thermogravimetric and differential thermal analyzer (TG-DTA). Furthermore, the in vitro antibacterial activities of these ternary hybrids were studied using the zone of inhibition (ZOI) method, minimum inhibitory concentration (MIC), minimum bactericidal concentration (MBC), and transmission electron microscope (TEM) and were found to have excellent antibacterial properties. The in vitro antitumor activities were performed in determining the absorbance values by CCK-8 (Cell Counting Kit-8) assay. This facile synthetic method would potentially enable the mass production of ternary lanthanum CPs at room temperature, which can be promising candidates as antibacterial compounds and antitumor agents.
Collapse
Affiliation(s)
- Liying Zhang
- School of Life Sciences and Medicine, Shandong University of Technology, Zibo, China
| | - Haoran Shi
- School of Life Sciences and Medicine, Shandong University of Technology, Zibo, China
| | - Xiao Tan
- Tongji University Cancer Center, Shanghai Tenth People’s Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Zhenqi Jiang
- Institute of Engineering Medicine, Beijing Institute of Technology, Beijing, China
- *Correspondence: Zhenqi Jiang, ; Ping Wang, ; Jieling Qin,
| | - Ping Wang
- School of Life Sciences and Medicine, Shandong University of Technology, Zibo, China
- Tongji University Cancer Center, Shanghai Tenth People’s Hospital, School of Medicine, Tongji University, Shanghai, China
- *Correspondence: Zhenqi Jiang, ; Ping Wang, ; Jieling Qin,
| | - Jieling Qin
- School of Life Sciences and Medicine, Shandong University of Technology, Zibo, China
- Tongji University Cancer Center, Shanghai Tenth People’s Hospital, School of Medicine, Tongji University, Shanghai, China
- *Correspondence: Zhenqi Jiang, ; Ping Wang, ; Jieling Qin,
| |
Collapse
|
5
|
Wang M, Su Y, Liu Y, Liang Y, Wu S, Zhou N, Shen J. Antibacterial fluorescent nano-sized lanthanum-doped carbon quantum dot embedded polyvinyl alcohol for accelerated wound healing. J Colloid Interface Sci 2022; 608:973-983. [PMID: 34785472 DOI: 10.1016/j.jcis.2021.10.018] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2021] [Revised: 10/03/2021] [Accepted: 10/04/2021] [Indexed: 12/31/2022]
Abstract
Bacteria is one of the main culprits that cause human diseases and pose long-term challenges to people's health. Rare earth elements have unique antibacterial advantages, but little research is available. In this paper, we reported an antibacterial composite film based on lanthanum-doped carbon quantum dot nanoparticles (La@N-P-CQDs) and polyvinyl alcohol (PVA) film for fluorescence of antibiotics and accelerating wound healing. PVA/La@N-P-CQDs composite film presented excellent hydrophilicity, biocompatibility, fluorescence intensity, and antibacterial effects. The antibacterial activity of La@N-P-CQDs was evaluated by employing antibacterial assay using Escherichia coli (E.coli)and Staphylococcus aureus (S.aureus) in vitro. La@N-P-CQDs showed enhanced antibacterial activity compared with N-P-CQDs. Moreover, the PVA/La@N-P-CQDs composite film with 0.5 mg/mL La@N-P-CQDs showed better antibacterial capability and wound healing performance than PVA and PVA/N-P-CQDs films in bacterial adhesion experiment. PVA/La@N-P-CQDs composite film could be used for wound dressing in vivo experiment and had no side effects on major organs in mice. The antibacterial composite film significantly promoted in vivo wound healing process because of its multifunctional properties. Therefore, it was an excellent candidate for wound dressing.
Collapse
Affiliation(s)
- Mingqian Wang
- National and Local Joint Engineering Research Center of Biomedical Functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, 210023 Nanjing, China
| | - Yutian Su
- Jiangsu Engineering Research Center of Interfacial Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, 163 Xianlin Avenue, Qixia District, Nanjing 210023, China
| | - Yihan Liu
- National and Local Joint Engineering Research Center of Biomedical Functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, 210023 Nanjing, China
| | - Ying Liang
- National and Local Joint Engineering Research Center of Biomedical Functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, 210023 Nanjing, China
| | - Shishan Wu
- Jiangsu Engineering Research Center of Interfacial Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, 163 Xianlin Avenue, Qixia District, Nanjing 210023, China
| | - Ninglin Zhou
- National and Local Joint Engineering Research Center of Biomedical Functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, 210023 Nanjing, China.
| | - Jian Shen
- National and Local Joint Engineering Research Center of Biomedical Functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, 210023 Nanjing, China; Jiangsu Engineering Research Center of Interfacial Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, 163 Xianlin Avenue, Qixia District, Nanjing 210023, China.
| |
Collapse
|
6
|
Song YY, Zhang LH, Dong LM, Li HT, Yu ZP, Liu Y, Lv GJ, Ma HL. pH-Responsive Smart Wettability Surface with Dual Bactericidal and Releasing Properties. ACS APPLIED MATERIALS & INTERFACES 2021; 13:46065-46075. [PMID: 34533938 DOI: 10.1021/acsami.1c08263] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Biomaterial-associated infections caused by pathogenic bacteria have important implications on human health. This study presents the design and preparation of a smart surface with pH-responsive wettability. The smart surface exhibited synergistic antibacterial function, with high liquid repellency against bacterial adhesion and highly effective bactericidal activity. The wettability of the surface can switch reversibly between superhydrophobicity and hydrophobicity in response to pH; this controls bacterial adhesion and release. Besides, the deposited silver nanoparticles of the surface were also responsible for bacterial inhibition. Benefiting from the excellent liquid repellency, the surface could highly resist bacterial adhesion after immersing in a bacterial suspension for 10 s (85%) and 1 h (71%). Adhered bacteria can be easily eliminated using deposited silver nanoparticles during the subsequent treatment of alkaline bacterial suspension, and the ratio of deactivated bacteria was above 75%. After the pH returned to neutral, the deactivated bacteria can be easily released from the surface. This antibacterial surface showed an improved bacterial removal efficiency of about 99%. The results shed light on future antibacterial applications of the smart surface combining both bactericidal and adhesion-resistant functionalities.
Collapse
Affiliation(s)
- Yun-Yun Song
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, Jiangsu, P. R. China
| | - Li-Hui Zhang
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, Jiangsu, P. R. China
| | - Li-Ming Dong
- School of Automotive Engineering, Changshu Institute of Technology, No. 99 Hushan Road, Changshu, Suzhou 215500, P. R. China
| | - Hai-Teng Li
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, Jiangsu, P. R. China
| | - Zhao-Peng Yu
- School of Automotive Engineering, Changshu Institute of Technology, No. 99 Hushan Road, Changshu, Suzhou 215500, P. R. China
| | - Yan Liu
- Key Laboratory of Bionic Engineering (Ministry of Education), Jilin University, Changchun 130022, P. R. China
| | - Guo-Jun Lv
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang 212003, Jiangsu, P. R. China
| | - Hai-le Ma
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, Jiangsu, P. R. China
| |
Collapse
|