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Wang G, Tang K, Jiang W, Liao Q, Li Y, Liu P, Wu Y, Liu M, Wang H, Li B, Du J, Chu PK. Quantifiable Relationship Between Antibacterial Efficacy and Electro-Mechanical Intervention on Nanowire Arrays. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2212315. [PMID: 36738179 DOI: 10.1002/adma.202212315] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/31/2022] [Revised: 01/29/2023] [Indexed: 05/12/2023]
Abstract
Physical disruption is an important antibacterial means as it is lethal to bacteria without spurring antimicrobial resistance. However, it is very challenging to establish a quantifiable relationship between antibacterial efficacy and physical interactions such as mechanical and electrical forces. Herein, titanium nitride (TN) nanowires with adjustable orientations and capacitances are prepared to exert gradient electro-mechanical forces on bacteria. While vertical nanowires show the strongest mechanical force resulting in an antibacterial efficiency of 0.62 log reduction (vs 0.22 for tiled and 0.36 for inclined nanowires, respectively), the addition of electrical charges maximizes the electro-mechanical interactions and elevates the antibacterial efficacy to more than 3 log reduction. Biophysical and biochemical analyses indicate that electrostatic attraction by electrical charge narrows the interface. The electro-mechanical intervention more easily stiffens and rips the bacteria membrane, disturbing the electron balance and generating intracellular oxidative stress. The antibacterial ability is maintained in vivo and bacteria-challenged rats are protected from serious infection. The physical bacteria-killing process demonstrated here can be controlled by adjusting the electro-mechanical interactions. Overall, these results revealed important principles for rationally designing high-performance antibacterial interfaces for clinical applications.
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Affiliation(s)
- Guomin Wang
- Department of Orthopedics, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai, 200072, P. R. China
- Department of Physics, Department of Materials Science and Engineering and Department of Biomedical Engineering, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, 999077, P. R. China
| | - Kaiwei Tang
- Department of Physics, Department of Materials Science and Engineering and Department of Biomedical Engineering, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, 999077, P. R. China
- School of Materials Science and Engineering, Xiangtan University, Xiangtan, Hunan, 411105, P. R. China
| | - Wenjuan Jiang
- College of Pharmacy, Western University of Health Sciences, 309 E. Second St, Pomona, CA, 91766, USA
| | - Qing Liao
- Center for Human Tissues and Organs Degeneration, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, P. R. China
| | - Yong Li
- Department of Applied Biology and Chemical Technology and the State Key Laboratory of Chemical Biology and Drug Discovery, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, 999077, P. R. China
| | - Pei Liu
- Department of Physics, Department of Materials Science and Engineering and Department of Biomedical Engineering, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, 999077, P. R. China
| | - Yuzheng Wu
- Department of Physics, Department of Materials Science and Engineering and Department of Biomedical Engineering, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, 999077, P. R. China
| | - Mengting Liu
- USC Stevens Neuroimaging and Informatics Institute, Keck School of Medicine of USC, University of Southern California, Los Angeles, CA, 90033, USA
| | - Huaiyu Wang
- Center for Human Tissues and Organs Degeneration, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, P. R. China
| | - Bin Li
- Department of Orthopaedic Surgery, Orthopaedic Institute, First Affiliated Hospital, Medical College, Soochow University, Suzhou, Jiangsu, 215007, P. R. China
| | - Jianzhong Du
- Department of Orthopedics, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai, 200072, P. R. China
- Department of Polymeric Materials, School of Materials Science and Engineering, Tongji University, 4800 Caoan Road, Shanghai, 201804, P. R. China
| | - Paul K Chu
- Department of Physics, Department of Materials Science and Engineering and Department of Biomedical Engineering, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, 999077, P. R. China
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Zhang W, Luo Y, Zhu PH, Ni XL, Redshaw C, Tao Z, Xiao X. Supramolecular Polymeric Material Based on Twisted Cucurbit[14]uril: Sensitive Detection and Removal of Potential Cyanide from Water. ACS APPLIED MATERIALS & INTERFACES 2022; 14:37068-37075. [PMID: 35926157 DOI: 10.1021/acsami.2c10866] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Potassium ferricyanide in an aqueous solution is easily decomposed into highly toxic substances (potassium cyanide and hydrogen cyanide) by light or alkaline action, which poses a major hazard to environmental and human health. Here, a reticulated aggregation-induced emission (AIE) supramolecular polymer material (TPAP-Mb@tQ[14]) was prepared by the supramolecular self-assembly of twisted cucurbit[14]uril (tQ[14]) and a triphenylamine derivative (TPAP-Mb). TPAP-Mb@tQ[14] not only recognizes Fe(CN)63- with sensitive specificity with a limit of detection (LOD) of 1.64 × 10-7 M but can also effectively remove and adsorb Fe(CN)63- from an aqueous solution with a removal rate as high as 97.38%. Meanwhile, an important component of the supramolecular polymer material (tQ[14]) can be reused. Thus, the tQ[14]-based supramolecular assembly has the potential to be used for applications addressing toxic anionic contaminants present in aqueous environments.
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Affiliation(s)
- Wei Zhang
- Key Laboratory of Macrocyclic and Supramolecular Chemistry of Guizhou Province, Institute of Applied Chemistry, Guizhou University, Guiyang 550025, China
| | - Yang Luo
- Key Laboratory of Macrocyclic and Supramolecular Chemistry of Guizhou Province, Institute of Applied Chemistry, Guizhou University, Guiyang 550025, China
| | - Pan-Hua Zhu
- Key Laboratory of Macrocyclic and Supramolecular Chemistry of Guizhou Province, Institute of Applied Chemistry, Guizhou University, Guiyang 550025, China
| | - Xin-Long Ni
- Key Laboratory of Macrocyclic and Supramolecular Chemistry of Guizhou Province, Institute of Applied Chemistry, Guizhou University, Guiyang 550025, China
| | - Carl Redshaw
- Department of Chemistry, University of Hull, Hull HU6 7RX, UK
| | - Zhu Tao
- Key Laboratory of Macrocyclic and Supramolecular Chemistry of Guizhou Province, Institute of Applied Chemistry, Guizhou University, Guiyang 550025, China
| | - Xin Xiao
- Key Laboratory of Macrocyclic and Supramolecular Chemistry of Guizhou Province, Institute of Applied Chemistry, Guizhou University, Guiyang 550025, China
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Xu J, Xue Y, Jian X, Zhao Y, Dai Z, Xu J, Gao Z, Mei Y, Song YY. Understanding of chiral site-dependent enantioselective identification on a plasmon-free semiconductor based SERS substrate. Chem Sci 2022; 13:6550-6557. [PMID: 35756506 PMCID: PMC9172570 DOI: 10.1039/d2sc01938h] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2022] [Accepted: 05/10/2022] [Indexed: 12/19/2022] Open
Abstract
Chiral differentiation is an important topic in diverse fields ranging from pharmaceutics to chiral synthesis. The improvement of sensitivity and the elucidation of the mechanism of chiral recognition are still the two main challenges. Herein, a plasmon-free semiconductive surface-enhanced Raman spectroscopy (SERS) substrate with sensitive chiral recognition ability is proposed for the discrimination of enantiomers. A homochiral environment is constructed by typical π–π stacking between l-tryptophan (l-Trp) and phenyl rings on well-aligned TiO2 nanotubes (TiO2 NTs). Using 3,4-dihydroxyphenylalanine (DOPA) enantiomers as the targets and the chelating interaction of Fe3+–DOPA for the onsite growth of Prussian blue (PB), the enantioselectivity difference between l-DOPA and d-DOPA on the homochiral substrate can be directly monitored from PB signals in the Raman-silent region. By combining the experimental results with molecular dynamic (MD) simulations, it is found that satisfactory enantioselective identification not only requires a homochiral surface but also largely depends on the chiral center environment-differentiated hydrogen-bond formation availability. An intelligent enantioselective identification strategy is designed to demonstrate that both enantioselectivity and stereoselectivity are crucial factors for chiral sensing.![]()
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Affiliation(s)
- Jing Xu
- College of Sciences, Northeastern University Shenyang 110819 China
| | - Yuanfei Xue
- State Key Laboratory of Precision Spectroscopy, School of Physics and Electronic Science, East China Normal University Shanghai 200062 China .,NYU-ECNU Center for Computational Chemistry at NYU Shanghai Shanghai 200062 China.,Collaborative Innovation Center of Extreme Optics, Shanxi University Taiyuan Shanxi 030006 China
| | - Xiaoxia Jian
- College of Sciences, Northeastern University Shenyang 110819 China
| | - Yue Zhao
- College of Sciences, Northeastern University Shenyang 110819 China
| | - Zhenqing Dai
- College of Sciences, Northeastern University Shenyang 110819 China
| | - Jingwen Xu
- College of Sciences, Northeastern University Shenyang 110819 China
| | - Zhida Gao
- College of Sciences, Northeastern University Shenyang 110819 China
| | - Ye Mei
- State Key Laboratory of Precision Spectroscopy, School of Physics and Electronic Science, East China Normal University Shanghai 200062 China .,NYU-ECNU Center for Computational Chemistry at NYU Shanghai Shanghai 200062 China.,Collaborative Innovation Center of Extreme Optics, Shanxi University Taiyuan Shanxi 030006 China
| | - Yan-Yan Song
- College of Sciences, Northeastern University Shenyang 110819 China
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Liu B, Zheng S, Tang H, Liu Q, Li H, Gao B, Zhao X, Sun F. Highly sensitive detection of free testosterone assisted by magnetic nanobeads and gap-enhanced SERS nanotags. Colloids Surf B Biointerfaces 2022; 214:112460. [PMID: 35298951 DOI: 10.1016/j.colsurfb.2022.112460] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Revised: 03/07/2022] [Accepted: 03/10/2022] [Indexed: 01/03/2023]
Abstract
The quantitative determination of trace free testosterone (FT) is of great significance for the diagnosis of androgen-related endocrine diseases. Herein, a fascinating detection protocol was developed for highly sensitive FT analysis through a competitive immunoassay mechanism, which was composed of magnetic nanobeads (MNBs) and gap-enhanced surface enhanced Raman scattering (SERS) nanotags. With the MNBs as detection carriers, trace FT could be enriched by simple magnetic separation. The SERS nanotag constructed with silver-gold core-shell nanoparticle was acted as quantitative label, and Raman indicators were located at the interface between silver core and gold shell. It is demonstrated that the as-proposed protocol achieves high detection sensitivity for FT of 12.11 fg mL-1, and wider linear dynamic detection range (LDR) in the concentration of 100 fg mL-1 to 100 ng mL-1 with R2 value of 0.979, which is due to the enhanced Raman signal of the gap-enhanced SERS nanotag and the high surface-to-volume ratio of the MNB, respectively. Taking advantages of such sensitivity and accuracy approach, the as-developed powerful strategy presents potential applications for rapid disease diagnosis through analyzing trace levels of FT, and can also provide guidance for the exploitation of analysis project of other analytes.
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Affiliation(s)
- Bing Liu
- Medical School, Institute of Reproductive Medicine, Nantong University, Nantong 226001, China.
| | - Shiya Zheng
- Zhongda Hospital, School of Medicine, Southeast University, Nanjing 210009, China
| | - Hanyu Tang
- Medical School, Institute of Reproductive Medicine, Nantong University, Nantong 226001, China
| | - Qian Liu
- Medical School, Institute of Reproductive Medicine, Nantong University, Nantong 226001, China
| | - Haitao Li
- Medical School, Institute of Reproductive Medicine, Nantong University, Nantong 226001, China
| | - Bingbing Gao
- School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing 211816, China
| | - Xiangwei Zhao
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing 210096, China; Southeast University Shenzhen Research Institute, Shenzhen 518000, China.
| | - Fei Sun
- Medical School, Institute of Reproductive Medicine, Nantong University, Nantong 226001, China.
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Liu W, Zhou S, Liu J, Zhao X, Feng Z, Wang D, Gong Z, Fan M. Quantitative detection of 6-thioguanine in body fluids based on a free-standing liquid membrane SERS substrate. Anal Bioanal Chem 2021; 414:1663-1670. [PMID: 34812902 DOI: 10.1007/s00216-021-03790-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2021] [Revised: 10/27/2021] [Accepted: 11/11/2021] [Indexed: 02/05/2023]
Abstract
The adverse reactions caused by 6-thioguanine (6-TG) in anti-cancer treatment are closely related to the dose, leading to the urgent need for clinical monitoring of its concentration. In this work, a highly reproducible free-standing liquid membrane (FLM) surface-enhanced Raman spectroscopy (SERS) substrate was developed to detect 6-TG in human urine and serum quantitatively. Briefly, a prepared sample was adjusted to pH 2 and mixed with concentrated core-shell bimetallic nanoparticle (AgcoreAushell NP) suspension. The Au/Ag ratio of the AgcoreAushell NPs was optimized. Then the mixture was formed into an FLM using a custom mold. The relative standard deviation (RSD) of the experimental results can be stabilized below 10% (n ≥ 10). The R2 of the calibration curve in the range of 10 ~ 100 μg kg-1 was 0.988. In addition, the limit of detection (LOD) (3σ/k) of 6-TG was 5 μg kg-1. The FLM SERS platform has been successfully applied to the rapid and reliable analysis of 6-TG spiked in body fluids.
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Affiliation(s)
- Wen Liu
- Faculty of Geosciences and Environmental Engineering, Southwest Jiaotong University, Chengdu, 611756, Sichuan, China
| | - Shana Zhou
- Faculty of Geosciences and Environmental Engineering, Southwest Jiaotong University, Chengdu, 611756, Sichuan, China
| | - Jing Liu
- Faculty of Geosciences and Environmental Engineering, Southwest Jiaotong University, Chengdu, 611756, Sichuan, China
| | - Xin Zhao
- Department of Gastroenterology, West China Hospital, Sichuan University, Chengdu, 610031, Sichuan, China
| | - Zhe Feng
- Department of Gastroenterology, West China Hospital, Sichuan University, Chengdu, 610031, Sichuan, China.
| | - Dongmei Wang
- Faculty of Geosciences and Environmental Engineering, Southwest Jiaotong University, Chengdu, 611756, Sichuan, China
| | - Zhengjun Gong
- Faculty of Geosciences and Environmental Engineering, Southwest Jiaotong University, Chengdu, 611756, Sichuan, China
| | - Meikun Fan
- Faculty of Geosciences and Environmental Engineering, Southwest Jiaotong University, Chengdu, 611756, Sichuan, China.
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Ren S, Zhang X, Li Z, Jian X, Zhao J, Song YY. Development of a pulse-induced electrochemical biosensor based on gluconamide for Gram-negative bacteria detection. Mikrochim Acta 2021; 188:399. [PMID: 34716816 DOI: 10.1007/s00604-021-05073-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2021] [Accepted: 10/18/2021] [Indexed: 11/24/2022]
Abstract
Pathogenic bacteria can cause the outbreaks of disease and threaten human health, which stimulates the development of advanced detection techniques. Herein, a specific and sensitive electrochemical biosensor for Gram-negative bacteria was established based on the conductive polymer with artificial muscle properties. The effective recognition was achieved through the specific carbohydrate-carbohydrate interaction between gluconamide and lipopolysaccharide. The application of impulse voltage enhances the efficiency of recognition and shortens the detection time through the temporary deformation of the electrode surface, with a limit of detection (LOD) of 1 × 100 CFU/mL and a linear range of 1 × 100 - 1 × 106 CFU/mL for Escherichia coli (E. coli). In addition to the merits of low cost, high efficiency, and rapidity, the developed label-free electrochemical biosensor can also be applicable for other Gram-negative bacteria, owning promising potential in the application of portable devices and paving a potential way for the construction of electrochemical biosensors.
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Affiliation(s)
- Sida Ren
- College of Science, Northeastern University, Shenyang, 110004, China
| | - Xi Zhang
- College of Science, Northeastern University, Shenyang, 110004, China
| | - Zhijie Li
- College of Science, Northeastern University, Shenyang, 110004, China
| | - Xiaoxia Jian
- College of Science, Northeastern University, Shenyang, 110004, China
| | - Junjian Zhao
- College of Science, Northeastern University, Shenyang, 110004, China
| | - Yan-Yan Song
- College of Science, Northeastern University, Shenyang, 110004, China.
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Liu C, Li J, Lei F, Wei Y, Li Z, Zhang C, Peng Q, Yu J, Man B. SERS substrate with wettability difference for molecular self-concentrating detection. NANOTECHNOLOGY 2021; 32:375603. [PMID: 34049298 DOI: 10.1088/1361-6528/ac0665] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/04/2021] [Accepted: 05/28/2021] [Indexed: 06/12/2023]
Abstract
The surface-enhanced Raman spectroscopy (SERS) has attracted much attention due to the powerful capability of quantificational analysis. Nowadays, most of the enhancement effect by SERS substrate is provided by the 'hot spots' occupying relatively small space. When the amount of analyte is too low, it is difficult to ensure that all the probe molecules can be placed into the 'hot spots', which is a headache in SERS quatification. In order to solve this problem, we have developed a structure of CuO nanowires/Ag nanoparticles with wettability capacity difference, which can aggregate molecules in water and oil simultaneously under two different mechanisms. The limit of detection and enhancement factor of this structure are estimated as 10-15M and 1.55 × 1011respectively (for rhodamine 6G, R6G). In a proof-in-principle experiment of sewage detection, it successfully achieved the aggregation and additional enhancement of both the R6G molecules in aqueous solution and thiuram molecules in toluene, realizing efficient and accurate Raman detection.
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Affiliation(s)
- Chundong Liu
- School of Physics and Electronics, Shandong Provincial Engineering and Technical Center of Light Manipulation, Shandong Normal University, Jinan, 250014, People's Republic of China
| | - Jia Li
- School of Physics and Electronics, Shandong Provincial Engineering and Technical Center of Light Manipulation, Shandong Normal University, Jinan, 250014, People's Republic of China
| | - Fengcai Lei
- College of Chemistry, Chemical Engineering and Materials Science, Institute of Biomedical Sciences, Shandong Normal University, Jinan, 250014, People's Republic of China
| | - Yisheng Wei
- School of Physics and Electronics, Shandong Provincial Engineering and Technical Center of Light Manipulation, Shandong Normal University, Jinan, 250014, People's Republic of China
| | - Zhen Li
- School of Physics and Electronics, Shandong Provincial Engineering and Technical Center of Light Manipulation, Shandong Normal University, Jinan, 250014, People's Republic of China
| | - Chao Zhang
- School of Physics and Electronics, Shandong Provincial Engineering and Technical Center of Light Manipulation, Shandong Normal University, Jinan, 250014, People's Republic of China
| | - Qianqian Peng
- School of Physics and Electronics, Shandong Provincial Engineering and Technical Center of Light Manipulation, Shandong Normal University, Jinan, 250014, People's Republic of China
| | - Jing Yu
- School of Physics and Electronics, Shandong Provincial Engineering and Technical Center of Light Manipulation, Shandong Normal University, Jinan, 250014, People's Republic of China
| | - Baoyuan Man
- School of Physics and Electronics, Shandong Provincial Engineering and Technical Center of Light Manipulation, Shandong Normal University, Jinan, 250014, People's Republic of China
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Xu J, He H, Jian X, Qu K, Xu J, Li C, Gao Z, Song YY. Wireless Battery-Free Generation of Electric Fields on One-Dimensional Asymmetric Au/ZnO Nanorods for Enhanced Raman Sensing. Anal Chem 2021; 93:9286-9295. [PMID: 34165967 DOI: 10.1021/acs.analchem.1c01723] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Wearable electronics have great potential in enhancing health monitoring, disease diagnosis, and environmental pollution tracking. Development of wearable surface-enhanced Raman spectroscopy (SERS) substrates with target sampling and sensitive sensing functions is a promising way to obtain physical and chemical information. This study describes a facile and effective approach for constructing an electrically modulated SERS (E-SERS) substrate as a wearable and wireless battery-free substrate with improved sensitivity. By integrating zinc oxide nanorods (ZnO NRs) with asymmetric gold decoration, controllable enhanced piezoelectric potentials were achieved using magnets to supply the adjustable pressure force. Owing to spatially oriented electron-hole pair separation on the asymmetric NRs, the local hotspot intensity at the Au tips is significantly improved, increasing the SERS signal by 6.7 times. This mechanism was quantitatively analyzed using Raman spectra by in situ formation of Prussian blue (PB). As a proof-of-concept, the E-SERS substrate was further used as a wearable flexible device to directly collect the sweat on a runner's skin and then monitor the lactate status of the runner. This study offers new insight into the development of E-SERS substrates and provides new design options for the construction of wearable sampling and sensing devices for the noninvasive monitoring of metabolites in healthcare and biomedical fields.
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Affiliation(s)
- Jing Xu
- College of Sciences, Northeastern University, Shenyang 110004, China
| | - Haoxuan He
- College of Sciences, Northeastern University, Shenyang 110004, China
| | - Xiaoxia Jian
- College of Sciences, Northeastern University, Shenyang 110004, China
| | - Kuanzhi Qu
- College of Sciences, Northeastern University, Shenyang 110004, China
| | - Jingwen Xu
- College of Sciences, Northeastern University, Shenyang 110004, China
| | - Chaowei Li
- College of Sciences, Northeastern University, Shenyang 110004, China
| | - Zhida Gao
- College of Sciences, Northeastern University, Shenyang 110004, China
| | - Yan-Yan Song
- College of Sciences, Northeastern University, Shenyang 110004, China
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