1
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Liu X, Jia Y, Han Z, Hou Q, Zhang W, Zheng W, Jiang X. Integrating a Concentration Gradient Generator and a Single-Cell Trapper Array for High-Throughput Screening the Bioeffects of Nanomaterials. Angew Chem Int Ed Engl 2021; 60:12319-12322. [PMID: 33770418 DOI: 10.1002/anie.202101293] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2021] [Indexed: 02/02/2023]
Abstract
We herein develop a concentration gradient generator (CGG) on a microfluidic chip for diluting different nanoparticles. Specifically designed compact disk (CD)-shaped microchannels in the CGG module could thoroughly mix the flowing solutions and generate a linear concentration gradient of nanoparticles without aggregation. We combine the CGG with a single-cell trapper array (SCA) on microfluidics to evaluate the concentration-dependent bioeffects of the nanoparticles. The precise control of the spatiotemporal generation of nanoparticle concentration on the CGG module and the single-cell-level monitoring of the cell behaviors on the SCA module by a high-content system in real time, render the CGG-SCA system a highly precise platform, which can exclude the average effect of cell population and reflect the response of individual cells to the gradient concentrations accurately. In addition, the CGG-SCA system provides an automated platform for high-throughput screening of nanomedicines with high precision and low sample consumption.
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Affiliation(s)
- Xiaoyan Liu
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, CAS Center for Excellence in Nanoscience, National Center for NanoScience and Technology, No. 11 Zhongguancun Beiyitiao, Beijing, 100190, P. R. China.,Department of Biomedical Engineering, Southern University of Science and Technology, No. 1088 Xueyuan Road, Nanshan District, Shenzhen, Guangdong, 518055, P. R. China.,Academy for Advanced Interdisciplinary Studies, Peking University, Beijing, 100871, P. R. China.,University of Chinese Academy of Sciences, 19 A Yuquan Road, Shijingshan District, Beijing, 100049, P. R. China
| | - Yuexiao Jia
- Department of Biomedical Engineering, Southern University of Science and Technology, No. 1088 Xueyuan Road, Nanshan District, Shenzhen, Guangdong, 518055, P. R. China
| | - Ziwei Han
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, CAS Center for Excellence in Nanoscience, National Center for NanoScience and Technology, No. 11 Zhongguancun Beiyitiao, Beijing, 100190, P. R. China
| | - Qinghong Hou
- Department of Biomedical Engineering, Southern University of Science and Technology, No. 1088 Xueyuan Road, Nanshan District, Shenzhen, Guangdong, 518055, P. R. China
| | - Wei Zhang
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, CAS Center for Excellence in Nanoscience, National Center for NanoScience and Technology, No. 11 Zhongguancun Beiyitiao, Beijing, 100190, P. R. China.,University of Chinese Academy of Sciences, 19 A Yuquan Road, Shijingshan District, Beijing, 100049, P. R. China
| | - Wenfu Zheng
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, CAS Center for Excellence in Nanoscience, National Center for NanoScience and Technology, No. 11 Zhongguancun Beiyitiao, Beijing, 100190, P. R. China.,University of Chinese Academy of Sciences, 19 A Yuquan Road, Shijingshan District, Beijing, 100049, P. R. China
| | - Xingyu Jiang
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, CAS Center for Excellence in Nanoscience, National Center for NanoScience and Technology, No. 11 Zhongguancun Beiyitiao, Beijing, 100190, P. R. China.,Department of Biomedical Engineering, Southern University of Science and Technology, No. 1088 Xueyuan Road, Nanshan District, Shenzhen, Guangdong, 518055, P. R. China.,University of Chinese Academy of Sciences, 19 A Yuquan Road, Shijingshan District, Beijing, 100049, P. R. China
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2
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Liu X, Jia Y, Han Z, Hou Q, Zhang W, Zheng W, Jiang X. Integrating a Concentration Gradient Generator and a Single‐Cell Trapper Array for High‐Throughput Screening the Bioeffects of Nanomaterials. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202101293] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Xiaoyan Liu
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety CAS Center for Excellence in Nanoscience National Center for NanoScience and Technology No. 11 Zhongguancun Beiyitiao Beijing 100190 P. R. China
- Department of Biomedical Engineering Southern University of Science and Technology No. 1088 Xueyuan Road, Nanshan District Shenzhen Guangdong 518055 P. R. China
- Academy for Advanced Interdisciplinary Studies Peking University Beijing 100871 P. R. China
- University of Chinese Academy of Sciences 19 A Yuquan Road, Shijingshan District Beijing 100049 P. R. China
| | - Yuexiao Jia
- Department of Biomedical Engineering Southern University of Science and Technology No. 1088 Xueyuan Road, Nanshan District Shenzhen Guangdong 518055 P. R. China
| | - Ziwei Han
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety CAS Center for Excellence in Nanoscience National Center for NanoScience and Technology No. 11 Zhongguancun Beiyitiao Beijing 100190 P. R. China
| | - Qinghong Hou
- Department of Biomedical Engineering Southern University of Science and Technology No. 1088 Xueyuan Road, Nanshan District Shenzhen Guangdong 518055 P. R. China
| | - Wei Zhang
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety CAS Center for Excellence in Nanoscience National Center for NanoScience and Technology No. 11 Zhongguancun Beiyitiao Beijing 100190 P. R. China
- University of Chinese Academy of Sciences 19 A Yuquan Road, Shijingshan District Beijing 100049 P. R. China
| | - Wenfu Zheng
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety CAS Center for Excellence in Nanoscience National Center for NanoScience and Technology No. 11 Zhongguancun Beiyitiao Beijing 100190 P. R. China
- University of Chinese Academy of Sciences 19 A Yuquan Road, Shijingshan District Beijing 100049 P. R. China
| | - Xingyu Jiang
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety CAS Center for Excellence in Nanoscience National Center for NanoScience and Technology No. 11 Zhongguancun Beiyitiao Beijing 100190 P. R. China
- Department of Biomedical Engineering Southern University of Science and Technology No. 1088 Xueyuan Road, Nanshan District Shenzhen Guangdong 518055 P. R. China
- University of Chinese Academy of Sciences 19 A Yuquan Road, Shijingshan District Beijing 100049 P. R. China
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3
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Min S, Li S, Zhu Z, Li W, Tang X, Liang C, Wang L, Cheng X, Li WD. Gradient wettability induced by deterministically patterned nanostructures. MICROSYSTEMS & NANOENGINEERING 2020; 6:106. [PMID: 34567715 PMCID: PMC8433471 DOI: 10.1038/s41378-020-00215-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/09/2020] [Revised: 08/24/2020] [Accepted: 09/10/2020] [Indexed: 06/12/2023]
Abstract
We report a large-scale surface with continuously varying wettability induced by ordered gradient nanostructures. The gradient pattern is generated from nonuniform interference lithography by utilizing the Gaussian-shaped intensity distribution of two coherent laser beams. We also develop a facile fabrication method to directly transfer a photoresist pattern into an ultraviolet (UV)-cured high-strength replication molding material, which eliminates the need for high-cost reactive ion etching and e-beam evaporation during the mold fabrication process. This facile mold is then used for the reproducible production of surfaces with gradient wettability using thermal-nanoimprint lithography (NIL). In addition, the wetting behavior of water droplets on the surface with the gradient nanostructures and therefore gradient wettability is investigated. A hybrid wetting model is proposed and theoretically captures the contact angle measurement results, shedding light on the wetting behavior of a liquid on structures patterned at the nanoscale.
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Affiliation(s)
- Siyi Min
- Department of Mechanical Engineering, The University of Hong Kong, Hong Kong, 999077 China
- Department of Materials Science and Engineering, Southern University of Science and Technology, Shenzhen, 518052 China
| | - Shijie Li
- Department of Mechanical Engineering, The University of Hong Kong, Hong Kong, 999077 China
| | - Zhouyang Zhu
- Department of Mechanical Engineering, The University of Hong Kong, Hong Kong, 999077 China
| | - Wei Li
- Department of Mechanical Engineering, The University of Hong Kong, Hong Kong, 999077 China
| | - Xin Tang
- Department of Mechanical Engineering, The University of Hong Kong, Hong Kong, 999077 China
| | - Chuwei Liang
- Department of Mechanical Engineering, The University of Hong Kong, Hong Kong, 999077 China
| | - Liqiu Wang
- Department of Mechanical Engineering, The University of Hong Kong, Hong Kong, 999077 China
- HKU-Zhejiang Institute of Research and Innovation (HKU-ZIRI), Hangzhou, 311305 Zhejiang China
| | - Xing Cheng
- Department of Materials Science and Engineering, Southern University of Science and Technology, Shenzhen, 518052 China
| | - Wen-Di Li
- Department of Mechanical Engineering, The University of Hong Kong, Hong Kong, 999077 China
- HKU-Zhejiang Institute of Research and Innovation (HKU-ZIRI), Hangzhou, 311305 Zhejiang China
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4
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Li N, Yu C, Dong Z, Jiang L. Finger directed surface charges for local droplet motion. SOFT MATTER 2020; 16:9176-9182. [PMID: 33084723 DOI: 10.1039/d0sm01073a] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Water droplets are expected to be employed as animated soft matter to mimic the behaviours of both nonliving objects and small living organisms. Local water droplet motion has attracted considerable interest and has expanded into various application areas because of its close relationship with processes associated with life. However, few approaches have been capable of independently manipulating local droplet motion without loss on a substrate due to the difficulty in shaping and focusing the motion route. Here, we demonstrate a non-contact electrostatic-powered local water motion strategy. The gradient of electrostatic charges in space guides the local drop motion without liquid loss in a controlled motion path. The local droplet motion on surfaces with varied wettabilities is discussed and compared. A unipolar electrostatic field is theoretically simulated. This work can introduce a finger-directed surface charge pattern and local droplet motion as a new variable in many droplet robot schemes and inspire next-generation liquid devices.
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Affiliation(s)
- Ning Li
- CAS Key Laboratory of Bio-inspired Materials and Interfacial Sciences, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China. and School of Future Technology, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Cunlong Yu
- Key Laboratory of Bio-inspired Smart Interfacial Science and Technology of Ministry of Education, School of Chemistry, Beijing Advanced Innovation Centre for Biomedical Engineering, Beihang University, Beijing, 100191, P. R. China
| | - Zhichao Dong
- CAS Key Laboratory of Bio-inspired Materials and Interfacial Sciences, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China. and School of Future Technology, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Lei Jiang
- CAS Key Laboratory of Bio-inspired Materials and Interfacial Sciences, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China. and Key Laboratory of Bio-inspired Smart Interfacial Science and Technology of Ministry of Education, School of Chemistry, Beijing Advanced Innovation Centre for Biomedical Engineering, Beihang University, Beijing, 100191, P. R. China
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5
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Cao F, Zhang L, Wang H, You Y, Wang Y, Gao N, Ren J, Qu X. Defect-Rich Adhesive Nanozymes as Efficient Antibiotics for Enhanced Bacterial Inhibition. Angew Chem Int Ed Engl 2019; 58:16236-16242. [PMID: 31456332 DOI: 10.1002/anie.201908289] [Citation(s) in RCA: 158] [Impact Index Per Article: 31.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2019] [Revised: 08/18/2019] [Indexed: 12/31/2022]
Abstract
Nanozymes have emerged as a new generation of antibiotics with exciting broad-spectrum antimicrobial properties and negligible biotoxicities. However, their antibacterial efficacies are unsatisfactory due to their inability to trap bacteria and their low catalytic activity. Herein, we report nanozymes with rough surfaces and defect-rich active edges. The rough surface increases bacterial adhesion and the defect-rich edges exhibit higher intrinsic peroxidase-like activity compared to pristine nanozymes due to their lower adsorption energies of H2 O2 and desorption energy of OH*, as well as the larger exothermic process for the whole reaction. This was demonstrated using drug-resistant Gram-negative Escherichia coli and Gram-positive Staphylococcus aureus in vitro and in vivo. This strategy can be used to engineer nanozymes with enhanced antibacterial function and will pave a new way for the development of alternative antibiotics.
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Affiliation(s)
- Fangfang Cao
- State Key Laboratory of Rare Earth Resource Utilization and Laboratory of Chemical Biology, Changchun Institute of Applied Chemistry, Chinese Academy of Science, Changchun, Jilin, 130022, P. R. China.,University of Science and Technology of China, Hefei, Anhui, 230029, P. R. China
| | - Lu Zhang
- State Key Laboratory of Rare Earth Resource Utilization and Laboratory of Chemical Biology, Changchun Institute of Applied Chemistry, Chinese Academy of Science, Changchun, Jilin, 130022, P. R. China
| | - Huan Wang
- State Key Laboratory of Rare Earth Resource Utilization and Laboratory of Chemical Biology, Changchun Institute of Applied Chemistry, Chinese Academy of Science, Changchun, Jilin, 130022, P. R. China.,University of Science and Technology of China, Hefei, Anhui, 230029, P. R. China
| | - Yawen You
- State Key Laboratory of Rare Earth Resource Utilization and Laboratory of Chemical Biology, Changchun Institute of Applied Chemistry, Chinese Academy of Science, Changchun, Jilin, 130022, P. R. China.,University of Science and Technology of China, Hefei, Anhui, 230029, P. R. China
| | - Ying Wang
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Science, Changchun, Jilin, 130022, P. R. China
| | - Nan Gao
- State Key Laboratory of Rare Earth Resource Utilization and Laboratory of Chemical Biology, Changchun Institute of Applied Chemistry, Chinese Academy of Science, Changchun, Jilin, 130022, P. R. China
| | - Jinsong Ren
- State Key Laboratory of Rare Earth Resource Utilization and Laboratory of Chemical Biology, Changchun Institute of Applied Chemistry, Chinese Academy of Science, Changchun, Jilin, 130022, P. R. China
| | - Xiaogang Qu
- State Key Laboratory of Rare Earth Resource Utilization and Laboratory of Chemical Biology, Changchun Institute of Applied Chemistry, Chinese Academy of Science, Changchun, Jilin, 130022, P. R. China
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6
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Cao F, Zhang L, Wang H, You Y, Wang Y, Gao N, Ren J, Qu X. Defect‐Rich Adhesive Nanozymes as Efficient Antibiotics for Enhanced Bacterial Inhibition. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201908289] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Fangfang Cao
- State Key Laboratory of Rare Earth Resource Utilization and Laboratory of Chemical BiologyChangchun Institute of Applied ChemistryChinese Academy of Science Changchun Jilin 130022 P. R. China
- University of Science and Technology of China Hefei Anhui 230029 P. R. China
| | - Lu Zhang
- State Key Laboratory of Rare Earth Resource Utilization and Laboratory of Chemical BiologyChangchun Institute of Applied ChemistryChinese Academy of Science Changchun Jilin 130022 P. R. China
| | - Huan Wang
- State Key Laboratory of Rare Earth Resource Utilization and Laboratory of Chemical BiologyChangchun Institute of Applied ChemistryChinese Academy of Science Changchun Jilin 130022 P. R. China
- University of Science and Technology of China Hefei Anhui 230029 P. R. China
| | - Yawen You
- State Key Laboratory of Rare Earth Resource Utilization and Laboratory of Chemical BiologyChangchun Institute of Applied ChemistryChinese Academy of Science Changchun Jilin 130022 P. R. China
- University of Science and Technology of China Hefei Anhui 230029 P. R. China
| | - Ying Wang
- State Key Laboratory of Rare Earth Resource UtilizationChangchun Institute of Applied ChemistryChinese Academy of Science Changchun Jilin 130022 P. R. China
| | - Nan Gao
- State Key Laboratory of Rare Earth Resource Utilization and Laboratory of Chemical BiologyChangchun Institute of Applied ChemistryChinese Academy of Science Changchun Jilin 130022 P. R. China
| | - Jinsong Ren
- State Key Laboratory of Rare Earth Resource Utilization and Laboratory of Chemical BiologyChangchun Institute of Applied ChemistryChinese Academy of Science Changchun Jilin 130022 P. R. China
| | - Xiaogang Qu
- State Key Laboratory of Rare Earth Resource Utilization and Laboratory of Chemical BiologyChangchun Institute of Applied ChemistryChinese Academy of Science Changchun Jilin 130022 P. R. China
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7
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Kang H, Jung W, Yeo WS. Facile Preparation of Functional Group Gradient Surfaces by Desorption and Re
-Adsorption of Alkanethiols on Gold. B KOREAN CHEM SOC 2018. [DOI: 10.1002/bkcs.11598] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Hyunook Kang
- Department of Bioscience and Biotechnology; Bio/Molecular Informatics Center, Konkuk University; Seoul 05029 South Korea
| | - Woong Jung
- Department of Emergency Medicine; Kyung Hee University Hospital at Kangdong; Seoul 05278 South Korea
| | - Woon-Seok Yeo
- Department of Bioscience and Biotechnology; Bio/Molecular Informatics Center, Konkuk University; Seoul 05029 South Korea
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8
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Cui H, Wang B, Wang W, Hao Y, Liu C, Song K, Zhang S, Wang S. Frosted Slides Decorated with Silica Nanowires for Detecting Circulating Tumor Cells from Prostate Cancer Patients. ACS APPLIED MATERIALS & INTERFACES 2018; 10:19545-19553. [PMID: 29770688 DOI: 10.1021/acsami.8b06072] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Developing low-cost and highly efficient nanobiochips are important for liquid biopsies, real-time monitoring, and precision medicine. By in situ growth of silica nanowires on a commercial frosted slide, we develop a biochip for effective circulating tumor cells (CTCs) detection after modifying epithelial cell adhesion molecule antibody (anti-EpCAM). The biochip shows the specificity and high capture efficiency of 85.4 ± 8.3% for prostate cancer cell line (PC-3). The microsized frosted slides and silica nanowires allow enhanced efficiency in capture EpCAM positive cells by synergistic topographic interactions. And the capture efficiency of biochip increased with the increase of silica nanowires length on frosted slide. The biochip shows that micro/nanocomposite structures improve the capture efficiency of PC-3 more than 70% toward plain slide. Furthermore, the nanobiochip has been successfully applied to identify CTCs from whole blood specimens of prostate cancer patients. Thus, this frosted slide-based biochip may provide a cheap and effective way of clinical monitoring of CTCs.
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Affiliation(s)
- Haijun Cui
- CAS Key Laboratory of Bio-inspired Materials and Interfacial Science, CAS Center for Excellence in Nanoscience , Technical Institute of Physics and Chemistry, Chinese Academy of Sciences , Beijing 100190 , China
- University of Chinese Academy of Sciences , Beijing 100049 , China
| | - Binshuai Wang
- Department of Urology , Peking University Third Hospital , Beijing 100191 , China
| | - Wenshuo Wang
- CAS Key Laboratory of Bio-inspired Materials and Interfacial Science, CAS Center for Excellence in Nanoscience , Technical Institute of Physics and Chemistry, Chinese Academy of Sciences , Beijing 100190 , China
- University of Chinese Academy of Sciences , Beijing 100049 , China
| | - Yuwei Hao
- University of Chinese Academy of Sciences , Beijing 100049 , China
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Green Printing, Institute of Chemistry , Chinese Academy of Sciences , Beijing 100190 , China
| | - Chuanyong Liu
- University of Chinese Academy of Sciences , Beijing 100049 , China
| | - Kai Song
- CAS Key Laboratory of Bio-inspired Materials and Interfacial Science, CAS Center for Excellence in Nanoscience , Technical Institute of Physics and Chemistry, Chinese Academy of Sciences , Beijing 100190 , China
| | - Shudong Zhang
- Department of Urology , Peking University Third Hospital , Beijing 100191 , China
| | - Shutao Wang
- CAS Key Laboratory of Bio-inspired Materials and Interfacial Science, CAS Center for Excellence in Nanoscience , Technical Institute of Physics and Chemistry, Chinese Academy of Sciences , Beijing 100190 , China
- University of Chinese Academy of Sciences , Beijing 100049 , China
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9
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Li N, Yu C, Si Y, Song M, Dong Z, Jiang L. Janus Gradient Meshes for Continuous Separation and Collection of Flowing Oils under Water. ACS APPLIED MATERIALS & INTERFACES 2018; 10:7504-7511. [PMID: 29457886 DOI: 10.1021/acsami.8b00044] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
Gradient meshes with Janus wettabilities are fabricated to stably separate and collect spilled oils from a range of flowing oily wastewater. Here, we demonstrate an overflow with separation methodology, which combines selective oil overflow and membrane separation, to separate low content oils from dynamic flowing oil-water mixtures by a curved gradient mesh that covered on a solid edge. The microscaled air-oil-water-solid four-phase wetting state during the oil-water separation process is visualized and demonstrated. The fundamental understanding of this overflow with separation system and the superior gradient mesh materials would enable us to construct a wide variety of separation devices out of traditional designs and advance related applications, such as wastewater treatment and fuel purification.
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Affiliation(s)
- Ning Li
- Key Laboratory of Bio-inspired Smart Interfacial Science and Technology of Ministry of Education, School of Chemistry, Beijing Advanced Innovation Center for Biomedical Engineering, Beihang University , Beijing 100191, P. R. China
- CAS Key Laboratory of Bio-inspired Materials and Interfacial Sciences, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences , Beijing 100190, P. R. China
| | - Cunlong Yu
- Key Laboratory of Bio-inspired Smart Interfacial Science and Technology of Ministry of Education, School of Chemistry, Beijing Advanced Innovation Center for Biomedical Engineering, Beihang University , Beijing 100191, P. R. China
| | - Yifan Si
- Key Laboratory of Bio-inspired Smart Interfacial Science and Technology of Ministry of Education, School of Chemistry, Beijing Advanced Innovation Center for Biomedical Engineering, Beihang University , Beijing 100191, P. R. China
| | - Meirong Song
- College of Sciences, Henan Agricultural University , Zhengzhou, Henan 450001, P. R. China
| | - Zhichao Dong
- Key Laboratory of Bio-inspired Smart Interfacial Science and Technology of Ministry of Education, School of Chemistry, Beijing Advanced Innovation Center for Biomedical Engineering, Beihang University , Beijing 100191, P. R. China
- CAS Key Laboratory of Bio-inspired Materials and Interfacial Sciences, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences , Beijing 100190, P. R. China
| | - Lei Jiang
- Key Laboratory of Bio-inspired Smart Interfacial Science and Technology of Ministry of Education, School of Chemistry, Beijing Advanced Innovation Center for Biomedical Engineering, Beihang University , Beijing 100191, P. R. China
- CAS Key Laboratory of Bio-inspired Materials and Interfacial Sciences, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences , Beijing 100190, P. R. China
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10
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Xue P, Ye S, Su H, Wang S, Nan J, Chen X, Ruan W, Zhang J, Cui Z, Yang B. Graded nanowell arrays: a fine plasmonic "library" with an adjustable spectral range. NANOSCALE 2017; 9:6724-6733. [PMID: 28485438 DOI: 10.1039/c7nr01505d] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
We present an effective approach for fabricating graded plasmonic arrays based on ordered micro-/nanostructures with a geometric gradient. Ag nanowell arrays with graded geometric parameters were fabricated and systematically investigated. The order of the graded plasmonic arrays is generated by colloidal lithography, while the geometric gradient is the result of inclined reactive ion etching. The surface plasmon resonance (SPR) peaks were measured at different positions, which move gradually along the Ag nanowell arrays with a geometric gradient. Such micro-/nanostructure arrays with graded and integrated SPR peaks can work as a fine plasmonic "library" (FPL), and the spectral range can be controlled using a "coarse adjustment knob" (lattice constant) and a "fine adjustment knob" (pore diameter). Additionally, the spectral resolution of the FPL is high, which benefits from the high value of the full height/full width at half-maximum and the small step size of the wavelength shift (0.5 nm). Meanwhile, the FPL could be effectively applied as a well-defined model to verify the plasmonic enhancement in surface enhanced Raman scattering. As the FPL is an integrated optical material with graded individual SPR peaks, it can not only be a theoretical model for fundamental research, but also has great potential in high-throughput screening of optical materials, multiplex sensors, etc.
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Affiliation(s)
- Peihong Xue
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun 130012, P. R. China.
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11
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Xue P, Nan J, Wang T, Wang S, Ye S, Zhang J, Cui Z, Yang B. Ordered Micro/Nanostructures with Geometric Gradient: From Integrated Wettability "Library" to Anisotropic Wetting Surface. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2017; 13:1601807. [PMID: 27886449 DOI: 10.1002/smll.201601807] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/30/2016] [Revised: 10/29/2016] [Indexed: 06/06/2023]
Abstract
Geometric gradients within ordered micro/nanostructures exhibit unique wetting properties. Well-defined and ordered microsphere arrays with geometric gradient (OMAGG) are successfully fabricated through combining colloidal lithography and inclined reactive ion etching (RIE). During the inclined RIE, the graded etching rates in vertical direction of etcher chamber are the key to generating a geometric gradient. The OMAGG can be used as an effective mask for the preparation of micro/nanostructure arrays with geometric gradient by selective RIE. Through this strategy, a well-defined wettability "library" with graded silicon cone arrays is fabricated, and the possibility of screening one desired "book" from the designated wettability "library" is demonstrated. Meanwhile, the silicon cone arrays with geometric gradient (SCAGG) can be applied to control the wetting behavior of water after being modified by hydrophilic or hydrophobic chemical groups. Based on this result, a temperature-responsive wetting substrate is fabricated by modifying poly n-isopropyl acrylamide (PNIPAM) on the SCAGG. These wettability gradients have great potential in tissue engineering, microfluidic devices, and integrated sensors.
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Affiliation(s)
- Peihong Xue
- State Key Lab of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun, 130012, P. R. China
| | - Jingjie Nan
- State Key Lab of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun, 130012, P. R. China
| | - Tieqiang Wang
- Research Center for Molecular Science and Engineering, Northeastern University, Shenyang, 111004, P. R. China
| | - Shuli Wang
- State Key Lab of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun, 130012, P. R. China
| | - Shunsheng Ye
- State Key Lab of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun, 130012, P. R. China
| | - Junhu Zhang
- State Key Lab of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun, 130012, P. R. China
| | - Zhanchen Cui
- State Key Lab of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun, 130012, P. R. China
| | - Bai Yang
- State Key Lab of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun, 130012, P. R. China
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12
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Wang L, Liu H, Zhang F, Li G, Wang S. Smart Thin Hydrogel Coatings Harnessing Hydrophobicity and Topography to Capture and Release Cancer Cells. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2016; 12:4697-4701. [PMID: 27295294 DOI: 10.1002/smll.201601275] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/14/2016] [Revised: 05/06/2016] [Indexed: 06/06/2023]
Abstract
Smart thin hydrogel coatings are fabricated to capture and release targeted cancer cells by simultaneously tuning surface hydrophobicity and topography. At physiological temperature, the targeted cancer cells are captured on the hydrophobic and wrinkled coating surface. At room temperature, the captured cells are released from the hydrophilic and smooth coating surface.
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Affiliation(s)
- Luying Wang
- Beijing National Laboratory for MolecularSciences (BNLMS), Key Laboratory of Green Printing, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
- University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Hongliang Liu
- Laboratory of Bio-inspired Smart Interface Science, CAS Center for Excellence in Nanoscience, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
| | - Feilong Zhang
- Beijing National Laboratory for MolecularSciences (BNLMS), Key Laboratory of Green Printing, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
- University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Guannan Li
- Beijing National Laboratory for MolecularSciences (BNLMS), Key Laboratory of Green Printing, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
- University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Shutao Wang
- University of Chinese Academy of Sciences, Beijing, 100049, P. R. China.
- Laboratory of Bio-inspired Smart Interface Science, CAS Center for Excellence in Nanoscience, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China.
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13
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Li G, Yang G, Zhang P, Li Y, Meng J, Liu H, Wang S. Rapid Cell Patterning Induced by Differential Topography on Silica Nanofractal Substrates. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2015; 11:5642-5646. [PMID: 26376008 DOI: 10.1002/smll.201502085] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/14/2015] [Indexed: 06/05/2023]
Abstract
Predesigned silica nanofractal substrates are utilized for rapid cell patterning, based on differential cell adhesion originating from surface topographic interactions. Cell patterns with various shapes are successfully formed, from simple geometrical shapes to a complex "CELL" symbol. This study assists understanding of cell-substrate interactions and facilitates biological applications.
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Affiliation(s)
- Guannan Li
- Beijing National Laboratory for Molecular Sciences (BNLMS), Key Laboratory of Organic SolidsInstitute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
- School of Chemistry and Chemical Engineering, University of the Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Gao Yang
- Beijing National Laboratory for Molecular Sciences (BNLMS), Key Laboratory of Organic SolidsInstitute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
- School of Chemistry and Chemical Engineering, University of the Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Pengchao Zhang
- Beijing National Laboratory for Molecular Sciences (BNLMS), Key Laboratory of Organic SolidsInstitute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
- School of Chemistry and Chemical Engineering, University of the Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Yingying Li
- Beijing National Laboratory for Molecular Sciences (BNLMS), Key Laboratory of Organic SolidsInstitute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
- School of Chemistry and Chemical Engineering, University of the Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Jingxin Meng
- Laboratory for Bio-Inspired Smart Interface Science, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
| | - Hongliang Liu
- Laboratory for Bio-Inspired Smart Interface Science, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
| | - Shutao Wang
- Beijing National Laboratory for Molecular Sciences (BNLMS), Key Laboratory of Organic SolidsInstitute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
- Laboratory for Bio-Inspired Smart Interface Science, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
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14
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Li Y, Feng X, Wang Y, Du W, Chen P, Liu C, Liu BF. Assembly of multiple cell gradients directed by three-dimensional microfluidic channels. LAB ON A CHIP 2015; 15:3203-3210. [PMID: 26126652 DOI: 10.1039/c5lc00618j] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Active control over the cell gradient is essential for understanding biological systems and the reconstitution of the functionality of many types of tissues, particularly for organ-on-a-chip. Here, we propose a three-dimensional (3D) microfluidic strategy for generating controllable cell gradients. In this approach, a homogeneous cell suspension is loaded into a 3D stair-shaped PDMS microchannel to generate a cell gradient within 10 min by sedimentation. We demonstrate that cell gradients of various profiles (exponential and piecewise linear) can be achieved by precisely controlling the height of each layer during the fabrication. With sequential seeding, we further demonstrate the generation of two overlapping cell gradients on the same glass substrate with pre-defined designs. The cell gradient-based QD cytotoxicity assay also demonstrated that cell behaviors and resistances were regulated by the changes in cell density. These results reveal that the proposed 3D microfluidic strategy provides a simple and versatile means for establishing controllable gradients in cell density, opening up a new avenue for reconstructing functional tissues.
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Affiliation(s)
- Yiwei Li
- Britton Chance Center for Biomedical Photonics at Wuhan National Laboratory for Optoelectronics - Hubei Bioinformatics & Molecular Imaging Key Laboratory, Systems Biology Theme, Department of Biomedical Engineering, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, China.
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15
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Liu GF, Ji W, Wang WL, Feng CL. Multiresponsive hydrogel coassembled from phenylalanine and azobenzene derivatives as 3D scaffolds for photoguiding cell adhesion and release. ACS APPLIED MATERIALS & INTERFACES 2015; 7:301-307. [PMID: 25372986 DOI: 10.1021/am506202s] [Citation(s) in RCA: 56] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
A multiresponsive hydrogel system coassembled from phenylalanine derivative gelator (LPF2) and azobenzene (Azo) derivative (PPI) is constructed, which can respond to temperature, pH, host-guest interaction, and photoirradiation. A set of techniques including circular dichroism, Fourier transform infrared spectroscopy, (1)H NMR, and X-ray powder diffraction confirm that the hydrogel is formed through hydrogen bonds between amide moieties/pyridine and carbonyl groups, enduing the coassembled hydrogel with multiresponsive properties that make it possible to control cell encapsulation and release in three-dimensional environments under multistimulus, for example, UV irradiation. This study brings a novel approach to develop multistimuli-responsive hydrogels by coassembly of various responsive components for biomedical interest, for example, the controlled delivery of various therapeutic biological agents.
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Affiliation(s)
- Guo-Feng Liu
- State Key Lab of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiaotong University , 800 Dongchuan Road, Shanghai 200240, China
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