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Singh N, Kaushik A, Ghori I, Rai P, Dong L, Sharma A, Malhotra BD, John R. Electrochemical and Plasmonic Detection of Myocardial Infarction Using Microfluidic Biochip Incorporated with Mesoporous Nanoscaffolds. ACS APPLIED MATERIALS & INTERFACES 2024; 16:32794-32811. [PMID: 38860871 DOI: 10.1021/acsami.4c01398] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2024]
Abstract
This paper reports a microfluidic device for the electrochemical and plasmonic detection of cardiac myoglobin (cMb) and cardiac troponin I (cTnI) with noticeable limits of detection (LoD) as low as a few picograms per milliliter (pg/mL) ranges, achieved in a short detection time. The device features two working electrodes, each with a mesoporous Ni3V2O8 nanoscaffold grafted with reduced graphene oxide (rGO) that improves the interaction of diffusing analyte molecules with the sensing surface by providing a high surface area and reaction kinetics. Electrochemical studies reveal sensitivities as high as 9.68 μA ng/mL and a LoD of 2.0 pg/mL for cTnI, and 8.98 μA ng/mL and 4.7 pg/mL for cMb. Additionally, the surface plasmon resonance (SPR) studies demonstrate a low-level LoD of 8.8 pg/mL for cMb and 7.3 pg/mL for cTnI. The dual-modality sensor enables dynamic tracking of kinetic antigen-antibody interactions during sensing, self-verification through providing signals of two modes, and reduced false readout. This study demonstrates the complementary nature of the electrochemical and SPR modes in biosensing, with the electrochemical mode being highly sensitive and the SPR mode providing superior tracking of molecular recognition behaviors. The presented sensor represents a significant innovation in cardiovascular disease management and can be applied to monitor other clinically important biomolecules.
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Affiliation(s)
- Nawab Singh
- Department of Electrical and Computer Engineering, Iowa State University, Ames, Iowa 50011, United States
- Department of Biomedical Engineering, Indian Institute of Technology Hyderabad, Hyderabad 502284, India
| | - Ajeet Kaushik
- Department of Environmental Engineering, Florida Polytechnic University, Lakeland, Florida 33805, United States
| | - Inayathullah Ghori
- Department of Biomedical Engineering, Indian Institute of Technology Hyderabad, Hyderabad 502284, India
| | - Prabhakar Rai
- Department of Chemical Engineering, Indian Institute of Technology Kanpur, Kanpur 208016, India
| | - Liang Dong
- Department of Electrical and Computer Engineering, Iowa State University, Ames, Iowa 50011, United States
- Microelectronics Research Center, Iowa State University, Ames, Iowa 50011, United States
| | - Ashutosh Sharma
- Department of Chemical Engineering, Indian Institute of Technology Kanpur, Kanpur 208016, India
| | - Bansi D Malhotra
- Environment & Biomedical Metrology Section, CSIR-National Physical Laboratory, New Delhi 110012, India
| | - Renu John
- Department of Biomedical Engineering, Indian Institute of Technology Hyderabad, Hyderabad 502284, India
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Baruah A, Newar R, Das S, Kalita N, Nath M, Ghosh P, Chinnam S, Sarma H, Narayan M. Biomedical applications of graphene-based nanomaterials: recent progress, challenges, and prospects in highly sensitive biosensors. DISCOVER NANO 2024; 19:103. [PMID: 38884869 PMCID: PMC11183028 DOI: 10.1186/s11671-024-04032-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/21/2024] [Accepted: 05/14/2024] [Indexed: 06/18/2024]
Abstract
Graphene-based nanomaterials (graphene, graphene oxide, reduced graphene oxide, graphene quantum dots, graphene-based nanocomposites, etc.) are emerging as an extremely important class of nanomaterials primarily because of their unique and advantageous physical, chemical, biological, and optoelectronic aspects. These features have resulted in uses across diverse areas of scientific research. Among all other applications, they are found to be particularly useful in designing highly sensitive biosensors. Numerous studies have established their efficacy in sensing pathogens and other biomolecules allowing for the rapid diagnosis of various diseases. Considering the growing importance and popularity of graphene-based materials for biosensing applications, this review aims to provide the readers with a summary of the recent progress in the concerned domain and highlights the challenges associated with the synthesis and application of these multifunctional materials.
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Affiliation(s)
- Arabinda Baruah
- Department of Chemistry, Gauhati University, Guwahati, Assam, 781014, India
| | - Rachita Newar
- Department of Chemistry, Gauhati University, Guwahati, Assam, 781014, India
| | - Saikat Das
- Department of Chemistry, Gauhati University, Guwahati, Assam, 781014, India
| | - Nitul Kalita
- Indian Institute of Technology Guwahati, Guwahati, Assam, 781039, India
| | - Masood Nath
- University of Technology and Applied Sciences, Muscat, Oman
| | - Priya Ghosh
- Department of Chemistry, Gauhati University, Guwahati, Assam, 781014, India
| | - Sampath Chinnam
- Department of Chemistry, M.S. Ramaiah Institute of Technology (Autonomous Institution, Affiliated to Visvesvaraya Technological University, Belgaum), Bengaluru, Karnataka, 560054, India
| | - Hemen Sarma
- Department of Botany, Bodoland University, Rangalikhata, Deborgaon, Kokrajhar (BTR), Assam, 783370, India.
| | - Mahesh Narayan
- Department of Chemistry and Biochemistry, University of Texas at El Paso, UTEP, 500 W. University Ave, El Paso, TX, 79968, USA.
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Tharani S, Rebecca PNB, Durgalakshmi D, Balakumar S, Rakkesh RA. Hydrothermal integration of MoO 2-MoS 2@rGO nanoframe networks: A promising approach for efficient bacterial disinfection in wastewater. CHEMOSPHERE 2023; 343:140273. [PMID: 37758069 DOI: 10.1016/j.chemosphere.2023.140273] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/01/2023] [Revised: 09/10/2023] [Accepted: 09/23/2023] [Indexed: 09/30/2023]
Abstract
The efficient disinfection of bacterial contaminants in wastewater is a critical challenge in the field of environmental remediation. Herein, we present a novel approach for efficient bacterial disinfection using hydrothermally integrated MoO2-MoS2@rGO nanoframe networks. The developed nanoframe networks exhibit a unique architecture comprising of molybdenum dioxide (MoO2) and molybdenum disulfide (MoS2) impregnated on algae biomass reduced graphene oxide (rGO). The as-synthesized nanoframe networks demonstrate exceptional antibacterial activity against Escherichia coli bacteria. The disinfection efficiency was evaluated by measuring the bacterial viability and observing the morphological changes using scanning electron microscopy. The MoO2-MoS2@rGO nanoframe networks exhibited a remarkable antibacterial effect, achieving a high disinfection rate of 95.8% within a short contact time of 10 min. The efficient bacterial disinfection capability of the nanoframe networks can be attributed to the synergistic effects of MoO2, MoS2, and rGO components. The MoO2 nanoparticles generate reactive oxygen species (ROS), persuading oxidative stress and leading to bacterial inactivation. The MoS2 nanoparticles possess inherent antibacterial properties through the release of Mo and S ions. The rGO nanosheets provide a conductive and stable platform, facilitating the charge transfer during the antibacterial process. Furthermore, the hydrothermal integration method enables easy scalability and cost-effectiveness of the MoO2-MoS2@rGO nanoframe networks. The nanoframe networks can be easily recovered and reused, reducing waste generation and promoting sustainability. Overall, this study presents a promising approach for efficient bacterial disinfection in wastewater using hydrothermally integrated MoO2-MoS2@rGO nanoframe networks. The remarkable antibacterial performance, along with the advantages of scalability and reusability, makes these nanoframe networks a potential candidate for practical applications in environmental remediation and water treatment processes.
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Affiliation(s)
- S Tharani
- Functional Nano-Materials (FuN) Laboratory, Department of Physics and Nanotechnology, Faculty of Engineering and Technology, SRM Institute of Science and Technology, Kattankulathur - 603203, TN, India
| | - P N Blessy Rebecca
- Functional Nano-Materials (FuN) Laboratory, Department of Physics and Nanotechnology, Faculty of Engineering and Technology, SRM Institute of Science and Technology, Kattankulathur - 603203, TN, India
| | - D Durgalakshmi
- Department of Medical Physics, Anna University, Chennai - 600 025, India
| | - S Balakumar
- National Centre for Nanoscience and Nanotechnology, University of Madras, Chennai - 600 025, India
| | - R Ajay Rakkesh
- Functional Nano-Materials (FuN) Laboratory, Department of Physics and Nanotechnology, Faculty of Engineering and Technology, SRM Institute of Science and Technology, Kattankulathur - 603203, TN, India.
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Han M, Zhang D, Shuck CE, McBride B, Zhang T, Wang RJ, Shevchuk K, Gogotsi Y. Electrochemically modulated interaction of MXenes with microwaves. NATURE NANOTECHNOLOGY 2023; 18:373-379. [PMID: 36646826 DOI: 10.1038/s41565-022-01308-9] [Citation(s) in RCA: 21] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Accepted: 11/30/2022] [Indexed: 06/17/2023]
Abstract
Dynamic control of electromagnetic wave jamming is a notable technological challenge for protecting electronic devices working at gigahertz frequencies. Foam materials can adjust the reflection and absorption of microwaves, enabling a tunable electromagnetic interference shielding capability, but their thickness of several millimetres hinders their application in integrated electronics. Here we show a method for modulating the reflection and absorption of incident electromagnetic waves using various submicrometre-thick MXene thin films. The reversible tunability of electromagnetic interference shielding effectiveness is realized by electrochemically driven ion intercalation and de-intercalation; this results in charge transfer efficiency with different electrolytes, accompanied by expansion and shrinkage of the MXene layer spacing. We finally demonstrate an irreversible electromagnetic interference shielding alertor through electrochemical oxidation of MXene films. In contrast with static electromagnetic interference shielding, our method offers opportunities to achieve active modulation that can adapt to demanding environments.
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Affiliation(s)
- Meikang Han
- A. J. Drexel Nanomaterials Institute and Department of Materials Science and Engineering, Drexel University, Philadelphia, PA, USA
| | - Danzhen Zhang
- A. J. Drexel Nanomaterials Institute and Department of Materials Science and Engineering, Drexel University, Philadelphia, PA, USA
| | - Christopher E Shuck
- A. J. Drexel Nanomaterials Institute and Department of Materials Science and Engineering, Drexel University, Philadelphia, PA, USA
| | - Bernard McBride
- A. J. Drexel Nanomaterials Institute and Department of Materials Science and Engineering, Drexel University, Philadelphia, PA, USA
| | - Teng Zhang
- A. J. Drexel Nanomaterials Institute and Department of Materials Science and Engineering, Drexel University, Philadelphia, PA, USA
| | - Ruocun John Wang
- A. J. Drexel Nanomaterials Institute and Department of Materials Science and Engineering, Drexel University, Philadelphia, PA, USA
| | - Kateryna Shevchuk
- A. J. Drexel Nanomaterials Institute and Department of Materials Science and Engineering, Drexel University, Philadelphia, PA, USA
| | - Yury Gogotsi
- A. J. Drexel Nanomaterials Institute and Department of Materials Science and Engineering, Drexel University, Philadelphia, PA, USA.
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Behnia S, Fathizadeh S, Hosseinnezhad P, Nemati F. Modulation of a DNA-based photodetector: Virus-Chromophore hybridization. Chem Phys 2023. [DOI: 10.1016/j.chemphys.2023.111899] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/30/2023]
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Kumar PS, G P, Elavarasan N, Sreeja BS. GO/ZnO nanocomposite - as transducer platform for electrochemical sensing towards environmental applications. CHEMOSPHERE 2023; 313:137345. [PMID: 36423727 DOI: 10.1016/j.chemosphere.2022.137345] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/10/2022] [Revised: 10/30/2022] [Accepted: 11/20/2022] [Indexed: 06/16/2023]
Abstract
Graphene Oxide-Zinc Oxide (GO-ZnO) - a new nanomaterial that has queued the interest of researchers. Their intriguing promising physical and electrochemical features of electrode material have led to its widespread use in electrochemical sensor applications. GO-ZnO based nanomaterial were extensively exploited in the construction of electrochemical sensors due to their adaptability and distinct qualities. On understanding the structural role of these materials, their modification processes are critical for realizing their full potential. The advancement of technology on new concepts and strategies has revolutionized the field of sensor devices with high sensitivities and selectivity. These tools can test a range of contaminants quickly, accurately, and affordably while performing automated chemical analysis in complicated matrices. This paper highlights the electrochemical transducer surface for sensing various analytes and current research activity on GO-ZnO nanocomposite. Additionally, we talked about current developments in GO-ZnO nanostructured composites to identify relevant analytes (i.e., Nitrophenols, Antibiotic Drugs, Biomolecules). While being used in the laboratory, the majority of produced systems have proven to bring about excellent gains. Their monitoring application still has a long way to go before it is fixed due to problems like technological advancements and multifunctional strategies to get around the challenges for improving the sensing systems.
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Affiliation(s)
- P Senthil Kumar
- Department of Chemical Engineering, Sri Sivasubramaniya Nadar College of Engineering, Kalavakkam, 603110, Tamil Nadu, India; Centre of Excellence in Water Research (CEWAR), Sri Sivasubramaniya Nadar College of Engineering, Kalavakkam, 603110, Tamil Nadu, India.
| | - Padmalaya G
- Department of Chemical Engineering, Sri Sivasubramaniya Nadar College of Engineering, Kalavakkam, 603110, Tamil Nadu, India; Centre of Excellence in Water Research (CEWAR), Sri Sivasubramaniya Nadar College of Engineering, Kalavakkam, 603110, Tamil Nadu, India
| | - N Elavarasan
- Department of Chemical Engineering, Sri Sivasubramaniya Nadar College of Engineering, Kalavakkam, 603110, Tamil Nadu, India; Centre of Excellence in Water Research (CEWAR), Sri Sivasubramaniya Nadar College of Engineering, Kalavakkam, 603110, Tamil Nadu, India
| | - B S Sreeja
- Centre of Excellence in Water Research (CEWAR), Sri Sivasubramaniya Nadar College of Engineering, Kalavakkam, 603110, Tamil Nadu, India; Department of Electronics and Communication Engineering, Sri Sivasubramaniya Nadar College of Engineering, Kalavakkam, 603110, Tamil Nadu, India
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Rehman J, Fan X, Samad A, Zheng W. Lithiation and Sodiation of Hydrogenated Silicene: A Density Functional Theory Investigation. CHEMSUSCHEM 2021; 14:5460-5469. [PMID: 34590444 DOI: 10.1002/cssc.202101742] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/16/2021] [Revised: 09/29/2021] [Indexed: 06/13/2023]
Abstract
The next-generation renewable energy machineries necessitate the electrodes with appropriate electrochemical performance. Here, the anodic properties of silicane for Li- and Na-ion batteries were scrutinized employing first-principle calculations. The projected single-layer hydrogen-functionalized Si (Si2 H2 ) structure was energetically, mechanically, dynamically, and thermally stable based on theoretical simulations, confirming its experimental feasibility. The electronic properties revealed the semiconducting nature of silicane on the basis of PBE and HSE06 schemes with an indirect bandgap. As anode material for Li- and Na-ion batteries, hydrogenated silicene showed promising electrochemical performance because of the proper adsorption strength between Si2 H2 and the adsorbed Li and Na. The average open circuit voltages for Li2x Si2 H2 and Na2x Si2 H2 were as low as 0.42 and 0. 64 V, while its specific capacity was as high as 921 and 1842 mAh g-1 for Li and Na, respectively. It also showed ultra-fast diffusion channels for Li and Na ions. The diffusion barriers for Li and Na migrations were as low as 0.18 and 0.14 eV, respectively, which revealed rapid charge/discharge processes using hydrogenated silicene as anode. These important features facilitate silicane as favorable anode material for Li/Na-ion batteries.
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Affiliation(s)
- Javed Rehman
- Key Laboratory of Automobile Materials (Jilin University), Ministry of Education, College of Materials Science and Engineering, Jilin University, Changchun, 130012, P. R. China
- Department of Physics, Balochistan University of Information Technology Engineering and Management Sciences (BUITEMS), Quetta, 87300, Pakistan
| | - Xiaofeng Fan
- Key Laboratory of Automobile Materials (Jilin University), Ministry of Education, College of Materials Science and Engineering, Jilin University, Changchun, 130012, P. R. China
| | - Abdus Samad
- Department of Materials Science and Engineering, Southern University of Science and Technology, Shenzhen, Guangdong, 518055, P. R. China
| | - Weitao Zheng
- Key Laboratory of Automobile Materials (Jilin University), Ministry of Education, College of Materials Science and Engineering, Jilin University, Changchun, 130012, P. R. China
- State Key Laboratory of Automotive Simulation and Control, Jilin University, Changchun, 130012, P. R. China
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Shang J, Guo Y, He D, Qu W, Tang Y, Zhou L, Zhu R. A novel graphene oxide-dicationic ionic liquid composite for Cr(VI) adsorption from aqueous solutions. JOURNAL OF HAZARDOUS MATERIALS 2021; 416:125706. [PMID: 33813290 DOI: 10.1016/j.jhazmat.2021.125706] [Citation(s) in RCA: 45] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/11/2020] [Revised: 03/12/2021] [Accepted: 03/18/2021] [Indexed: 06/12/2023]
Abstract
A novel graphene oxide-dicationic ionic liquid composite (GO-DIL) was prepared by modifying graphene oxide (GO) with a dicationic ionic liquid (DIL), 3,3'-(butane-1,4-diyl) bis (1-methyl-1H-imidazol-3-ium) chloride ([C4(MIM)2]Cl2). GO and GO-DIL were characterized by SEM, BET, FTIR, and XPS, and the materials were used for Cr(VI) adsorption. Batch adsorption studies showed that adsorption reached equilibrium within 40 min, and the optimal pH was 3, where the electrostatic attraction between GO-DIL and Cr(VI) was maximized. The maximum theoretical Cr(VI) adsorption capacity (qm) was 271.08 mg g-1, and qm remained above 228.00 mg g-1 after five cycles. The adsorption data were fitted well by both the pseudo-first-order kinetic model and the Langmuir model. Furthermore, thermodynamics calculations revealed that adsorption was a spontaneous endothermic process. Importantly, electrostatic attraction between Cr(VI) and the protonated imidazole N+ of GO-DIL played a critical role in Cr(VI) adsorption, and Cr(VI) was reduced to Cr(III). Thus, GO-DIL is predicted to be an effective adsorbent for Cr(VI) and other heavy metal ions in wastewater.
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Affiliation(s)
- Jun Shang
- College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China
| | - Yanni Guo
- College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China
| | - Deliang He
- College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China.
| | - Wei Qu
- College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China
| | - Yining Tang
- College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China
| | - Lei Zhou
- College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China
| | - Rilong Zhu
- College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China
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Ojaghlou N, Bratko D, Salanne M, Shafiei M, Luzar A. Solvent-Solvent Correlations across Graphene: The Effect of Image Charges. ACS NANO 2020; 14:7987-7998. [PMID: 32491826 DOI: 10.1021/acsnano.9b09321] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Wetting experiments show pure graphene to be weakly hydrophilic, but its contact angle (CA) also reflects the character of the supporting material. Measurements and molecular dynamics simulations on suspended and supported graphene often reveal a CA reduction due to the presence of the supporting substrate. A similar reduction is consistently observed when graphene is wetted from both sides. The effect has been attributed to transparency to molecular interactions across the graphene sheet; however, the possibility of substrate-induced graphene polarization has also been considered. Computer simulations of CA on graphene have so far been determined by ignoring the material's conducting properties. We improve the graphene model by incorporating its conductivity according to the constant applied potential molecular dynamics. Using this method, we compare the wettabilities of suspended graphene and graphene supported by water by measuring the CA of cylindrical water drops on the sheets. The inclusion of graphene conductivity and concomitant polarization effects leads to a lower CA on suspended graphene, but the CA reduction is significantly bigger when the sheets are also wetted from the opposite side. The stronger adhesion is accompanied by a profound change in the correlations among water molecules across the sheet. While partial charges on water molecules interacting across an insulator sheet attract charges of the opposite sign, apparent attraction among like charges is manifested across the conducting graphene. The change is associated with graphene polarization, as the image charges inside the conductor attract equally signed partial charges of water molecules on both sides of the sheet. Additionally, using a nonpolar liquid (diiodomethane), we affirm a detectable wetting translucency when liquid-liquid forces are dominated by dispersive interactions. Our findings are important for predictive modeling toward a variety of applications including sensors, fuel cell membranes, water filtration, and graphene-based electrode materials in high-performance supercapacitors.
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Affiliation(s)
- Neda Ojaghlou
- Department of Chemistry, Virginia Commonwealth University, Richmond, Virginia 23284, United States
| | - Dusan Bratko
- Department of Chemistry, Virginia Commonwealth University, Richmond, Virginia 23284, United States
| | - Mathieu Salanne
- Sorbonne Université, CNRS, Physico-Chimie des Électrolytes et Nanosystèmes Interfaciaux, Phenix, F-75005 Paris, France
| | - Mahdi Shafiei
- Department of Chemistry, Virginia Commonwealth University, Richmond, Virginia 23284, United States
| | - Alenka Luzar
- Department of Chemistry, Virginia Commonwealth University, Richmond, Virginia 23284, United States
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Abd-Elsalam KA, Ramadan MM, Hassanien MK. Nanocarbon-based sensors for pesticide detection: Recent trends. CARBON NANOMATERIALS FOR AGRI-FOOD AND ENVIRONMENTAL APPLICATIONS 2020:401-428. [DOI: 10.1016/b978-0-12-819786-8.00018-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/01/2023]
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Sethi M, Shenoy US, Bhat DK. Porous graphene–NiCo2O4 nanorod hybrid composite as a high performance supercapacitor electrode material. NEW J CHEM 2020. [DOI: 10.1039/c9nj05725k] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
PGNC composite synthesized via a green route for the development of high performance supercapacitors with high cyclic stability.
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Affiliation(s)
- Meenaketan Sethi
- Department of Chemistry
- National Institute of Technology Karnataka
- Mangalore-575025
- India
| | - U. Sandhya Shenoy
- Department of Chemistry
- College of Engineering and Technology
- Srinivas University
- Mangalore-574146
- India
| | - D. Krishna Bhat
- Department of Chemistry
- National Institute of Technology Karnataka
- Mangalore-575025
- India
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14
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Abadikhah H, Naderi Kalali E, Khodi S, Xu X, Agathopoulos S. Multifunctional Thin-Film Nanofiltration Membrane Incorporated with Reduced Graphene Oxide@TiO 2@Ag Nanocomposites for High Desalination Performance, Dye Retention, and Antibacterial Properties. ACS APPLIED MATERIALS & INTERFACES 2019; 11:23535-23545. [PMID: 31199614 DOI: 10.1021/acsami.9b03557] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
High desalination performance, dye retention, and antibacterial properties were achieved with a multifunctional thin-film nanocomposite (MTFN) membrane, fabricated by the incorporation of a novel nanocomposite structure of reduced graphene oxide@TiO2@Ag (rGO@TiO2@Ag) into the polyamide active layer. The specific characteristics of the graphene-based nanocomposite, synthesized by the microwave-assisted irradiation process, favored water channelization and provided superhydrophilicity and antibacterial properties to the MTFN membranes. In comparison with the conventional methods, such as multistep chemical process using strong agents for reduction and long-term energy-consuming hydrothermal process, microwave irradiation facilitated a green, fast, and cost-effective route for the fabrication of GO-based nanocomposites for multifunctional applications. Interfacial polymerization was performed on a polyethersulfone/Si3N4 robust hollow fiber substrate using m-phenylenediamine aqueous solution and 1,3,5-benzenetricarbonyltrichloride organic solution. The structural and chemical characteristics of the synthesized nanocomposites and the MTFN membranes were thoroughly studied by a series of characterization analyses (transmission electron microscopy, field emission scanning electron microscopy, X-ray diffraction, Fourier transform infrared, energy-dispersive X-ray spectroscopy, X-ray photoelectron spectroscopy, and atomic force microscopy). The physicochemical properties and the nanofiltration performance of the MTFN membranes were investigated after the incorporation of rGO@TiO2@Ag at various concentrations. The water contact angles confirmed the superb surface hydrophilicity of the MTFN membranes. High permeability (52 L·m-2·h-1), desalination (96% for 1 g/L Na2SO4 feed solution), and dye retention (98% for 0.5 g/L rose bengal feed solution) were recorded for MTFN enriched with 0.2 wt % rGO@TiO2@Ag. A 90% reduction in the number of viable bacteria ( Escherichia coli), after 3 h of contact with MTFN membranes, confirmed the superior antibacterial activity of the produced membranes.
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Affiliation(s)
| | | | - Samaneh Khodi
- School of Life Sciences , University of Science and Technology of China , 443 Huangshan Road , Hefei , Anhui 230027 , China
| | | | - Simeon Agathopoulos
- Department of Materials Science and Engineering , University of Ioannina , Ioannina GR-45110 , Greece
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Li G, Dong D, Hong G, Yan L, Zhang X, Song W. High-Efficiency Cryo-Thermocells Assembled with Anisotropic Holey Graphene Aerogel Electrodes and a Eutectic Redox Electrolyte. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2019; 31:e1901403. [PMID: 31034133 DOI: 10.1002/adma.201901403] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/03/2019] [Revised: 04/04/2019] [Indexed: 05/27/2023]
Abstract
Thermocells, capable of converting temperature-dependent electrochemical redox potentials into electrical power, can harvest waste or low-grade heat in an economical and continuous approach with zero carbon emission. However, the power density and conversion efficiency of thermocells are hindered by a narrow operation window and low ion conductivity of the electrodes, especially in freezing weather conditions. Herein, highly efficient cylindrical thermocells, working in a wide operation window of cold temperatures, are developed. A eutectic electrolyte consisting of formamide and water is formulated with a high ion conductivity, which is retained at a significantly extended lower limit of the operation window from conventional 0 to -40 °C. In parallel, an electrode material based on anisotropic holey graphene aerogel is synthesized with improved ion conductivity, especially at temperatures below 0 °C, due to its aligned graphene sheets and pores. By taking the advantages of both components, the power density and the Seebeck coefficient of a single-cylinder thermocell reaches an exceptionally high value, i.e., 3.6 W m-2 and 1.3 mV K-1 , respectively. Moreover, assembled thermocells in series packaging substantially enhance the voltage of the open-circuit, i.e., from 140 mV (1-cylinder thermocell) to 2.1 V (15-cylinder thermocells).
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Affiliation(s)
- Guangyong Li
- Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, 215123, P. R. China
- School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, 100081, P. R. China
| | - Dapeng Dong
- Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, 215123, P. R. China
| | - Guo Hong
- Institute of Applied Physics and Materials Engineering, Department of Physics and Chemistry, Faculty of Science and Technology, University of Macau, Macao, 999078
| | - Lifeng Yan
- Department of Chemical Physics, University of Science and Technology of China, Hefei, 230026, P. R. China
| | - Xuetong Zhang
- Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, 215123, P. R. China
- Centre for Biomaterials in Surgical Reconstruction and Regeneration, Division of Surgery and Interventional Science, University College London, London, NW3 2PF, UK
| | - Wenhui Song
- Centre for Biomaterials in Surgical Reconstruction and Regeneration, Division of Surgery and Interventional Science, University College London, London, NW3 2PF, UK
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16
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Tang C, Wang HF, Huang JQ, Qian W, Wei F, Qiao SZ, Zhang Q. 3D Hierarchical Porous Graphene-Based Energy Materials: Synthesis, Functionalization, and Application in Energy Storage and Conversion. ELECTROCHEM ENERGY R 2019. [DOI: 10.1007/s41918-019-00033-7] [Citation(s) in RCA: 66] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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17
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Li L, Hou J, Chen V. Pinning Down the Water Transport Mechanism in Graphene Oxide Pervaporation Desalination Membranes. Ind Eng Chem Res 2019. [DOI: 10.1021/acs.iecr.8b06081] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Lin Li
- UNESCO Centre for Membrane Science and Technology, School of Chemical Engineering, University of New South Wales, Sydney, New South Wales 2052, Australia
| | - Jingwei Hou
- UNESCO Centre for Membrane Science and Technology, School of Chemical Engineering, University of New South Wales, Sydney, New South Wales 2052, Australia
- Department of Materials Science and Metallurgy, University of Cambridge, Cambridge, CB3 0FS, U.K
| | - Vicki Chen
- UNESCO Centre for Membrane Science and Technology, School of Chemical Engineering, University of New South Wales, Sydney, New South Wales 2052, Australia
- School of Chemical Engineering, University of Queensland, St. Lucia, Queensland 4072, Australia
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18
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Krishnan SK, Singh E, Singh P, Meyyappan M, Nalwa HS. A review on graphene-based nanocomposites for electrochemical and fluorescent biosensors. RSC Adv 2019; 9:8778-8881. [PMID: 35517682 PMCID: PMC9062009 DOI: 10.1039/c8ra09577a] [Citation(s) in RCA: 265] [Impact Index Per Article: 53.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2018] [Accepted: 02/15/2019] [Indexed: 12/16/2022] Open
Abstract
Biosensors with high sensitivity, selectivity and a low limit of detection, reaching nano/picomolar concentrations of biomolecules, are important to the medical sciences and healthcare industry for evaluating physiological and metabolic parameters.
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Affiliation(s)
- Siva Kumar Krishnan
- CONACYT-Instituto de Física
- Benemérita Universidad Autónoma de Puebla
- Puebla 72570
- Mexico
| | - Eric Singh
- Department of Computer Science
- Stanford University
- Stanford
- USA
| | - Pragya Singh
- Department of Electrical Engineering and Computer Science
- National Chiao Tung University
- Hsinchu 30010
- Taiwan
| | - Meyya Meyyappan
- Center for Nanotechnology
- NASA Ames Research Center
- Moffett Field
- Mountain View
- USA
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19
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Ling Y, Zhuang X, Xu Z, Xie Y, Zhu X, Xu Y, Sun B, Lin J, Zhang Y, Yan Z. Mechanically Assembled, Three-Dimensional Hierarchical Structures of Cellular Graphene with Programmed Geometries and Outstanding Electromechanical Properties. ACS NANO 2018; 12:12456-12463. [PMID: 30427653 DOI: 10.1021/acsnano.8b06675] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
Three-dimensional (3D) cellular graphene structures have wide applications in energy storage, catalysis, polymer composites, electromagnetic shielding, and many others. However, the current strategies to form cellular graphene are only able to realize limited structure control and are hard to achieve the construction of 3D hierarchical architectures with complex, programmed configurations, limiting the design capabilities to satisfy various next-generation device applications. In addition, cellular graphene usually exhibits limited electromechanical properties, and its electrical and electrochemical performances are dramatically affected by mechanical deformations, constraining its applications in emerging wearable electronics and energy devices. Herein, we report a simple, general, and effective route to 3D hierarchical architectures of cellular graphene with desired geometries through the use of a mechanically guided, 3D assembly approach to overcome the aforementioned two challenges. Demonstrations include more than 10 3D hierarchical architectures with diverse configurations, ranging from mixed tables and tents, to double-floor helices, to kirigami/origami-inspired structures, and to fully separated multilayer architectures. The LED arrays interconnected with 3D helical coils and 3D interdigital supercapacitors fabricated with solid-state electrolytes provide prototypic examples of wearable devices that exhibit outstanding electromechanical properties and can maintain stable performances with little change in the electrical and electrochemical responses under extreme deformations, in both the static and cyclic loading conditions.
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Affiliation(s)
- Yun Ling
- Department of Mechanical & Aerospace Engineering , University of Missouri , Columbia , Missouri 65211 , United States
| | - Xiatian Zhuang
- Department of Mechanical & Aerospace Engineering , University of Missouri , Columbia , Missouri 65211 , United States
| | - Zheng Xu
- AML, Department of Engineering Mechanics, Center for Flexible Electronics Technology , Tsinghua University , Beijing 100084 , China
- State Key Laboratory for Manufacturing and Systems Engineering, School of Mechanical Engineering , Xi'an Jiaotong University , Xi'an 710049 , China
| | - Yunchao Xie
- Department of Mechanical & Aerospace Engineering , University of Missouri , Columbia , Missouri 65211 , United States
| | - Xiaoyu Zhu
- Department of Biomedical, Biological & Chemical Engineering , University of Missouri , Columbia , Missouri 65211 , United States
| | - Yadong Xu
- Department of Biomedical, Biological & Chemical Engineering , University of Missouri , Columbia , Missouri 65211 , United States
| | - Bohan Sun
- Department of Mechanical & Aerospace Engineering , University of Missouri , Columbia , Missouri 65211 , United States
| | - Jian Lin
- Department of Mechanical & Aerospace Engineering , University of Missouri , Columbia , Missouri 65211 , United States
| | - Yihui Zhang
- AML, Department of Engineering Mechanics, Center for Flexible Electronics Technology , Tsinghua University , Beijing 100084 , China
| | - Zheng Yan
- Department of Mechanical & Aerospace Engineering , University of Missouri , Columbia , Missouri 65211 , United States
- Department of Biomedical, Biological & Chemical Engineering , University of Missouri , Columbia , Missouri 65211 , United States
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20
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Peng H, Zhong Y, Zhang X, He Y, Wang G. Percolating Film of Pillared Graphene Layer Integrated with Silver Nanowire Network for Transparent and Flexible Supercapacitors. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2018; 34:15245-15252. [PMID: 30428676 DOI: 10.1021/acs.langmuir.8b03356] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Transparent and flexible supercapacitors (TFSCs) are viable power sources for next-generation wearable electronics. The ingenious design of the transparent electrode determines the performance of TFSCs. A percolating film of a pillared graphene layer integrated with a silver nanowire network as the transparent electrode was prepared, by which TFSC devices exhibit a significantly improved performance contrastively. Under the condition of the same transmittance, about 27-72% improvement in the areal capacitance can be achieved. On the one hand, the pillars of carbon nanotube (CNT) were distributed in the graphene layer uniformly, enlarging the inner distance of adjacent graphene layers and providing an open structure for extra ion transport and storage of TFSCs. On the other hand, the introduced CNT could facilitate the electron transport at the direction perpendicular to the graphene basal plane, enhancing the electronic conductivity of the graphene layer. More importantly, the formed percolating film ensures an efficient transport of electron along with the silver nanowire when it encounters the obstacle within the graphene layer, resulting in a highly conductive electrode. The TFSC device with a good compatibility indicates a reliable practicability, which provides a facile route toward the design of high-performance TFSCs.
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Affiliation(s)
- Huifen Peng
- School of Material Science and Engineering, Research Institute for Energy Equipment Materials , Hebei University of Technology , Tianjin 300130 , China
- Tianjin Key Laboratory of Materials Laminating Fabrication and Interface Control Technology , Hebei University of Technology , Tianjin 300130 , China
| | - Yuxiang Zhong
- School of Material Science and Engineering, Research Institute for Energy Equipment Materials , Hebei University of Technology , Tianjin 300130 , China
- Tianjin Key Laboratory of Materials Laminating Fabrication and Interface Control Technology , Hebei University of Technology , Tianjin 300130 , China
| | - Xin Zhang
- School of Material Science and Engineering, Research Institute for Energy Equipment Materials , Hebei University of Technology , Tianjin 300130 , China
- Tianjin Key Laboratory of Materials Laminating Fabrication and Interface Control Technology , Hebei University of Technology , Tianjin 300130 , China
| | - Yi He
- School of Material Science and Engineering, Research Institute for Energy Equipment Materials , Hebei University of Technology , Tianjin 300130 , China
- Tianjin Key Laboratory of Materials Laminating Fabrication and Interface Control Technology , Hebei University of Technology , Tianjin 300130 , China
| | - Gongkai Wang
- School of Material Science and Engineering, Research Institute for Energy Equipment Materials , Hebei University of Technology , Tianjin 300130 , China
- Tianjin Key Laboratory of Materials Laminating Fabrication and Interface Control Technology , Hebei University of Technology , Tianjin 300130 , China
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21
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Li H, Jing L, Ngoh ZL, Tay RY, Lin J, Wang H, Tsang SH, Teo EHT. Engineering of High-Density Thin-Layer Graphite Foam-Based Composite Architectures with Superior Compressibility and Excellent Electromagnetic Interference Shielding Performance. ACS APPLIED MATERIALS & INTERFACES 2018; 10:41707-41716. [PMID: 30403340 DOI: 10.1021/acsami.8b15240] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Three-dimensional (3D) graphene architectures with well-controlled structure and excellent physiochemical properties have attracted considerable interest due to their potential applications in flexible electronic devices. However, the majority of the existing 3D graphene still encounters several drawbacks such as brittleness, non-uniform building units, and limited scale (millimeter or even micrometer), which severely limits its practical applications. Herein, we demonstrate a new scalable technique for the preparation of thin-layer graphite foam (GF) with controllable densities (27.2-69.2 mg cm-3) by carbonization of polyacrylonitrile using a template-directed thermal annealing approach. By integrating the GF with poly(dimethylsiloxane) (PDMS), macroscopic porous GF@PDMS with variable thin-layer GF contents ranging from 15.9 to 31.7% was further fabricated. Owing to the robust interconnected porous network of the GF and the synergistic effect between GF and PDMS, GF@PDMS with a 15.9% thin-layer GF content exhibited an impressive 254% increase in compressive strength over the bare GF. In addition, such 15.9% GF@PDMS can totally recover after the first compression cycle at a 95% strain and maintain ∼88% recovery even after 1000 compression cycles at an 80% strain, demonstrating its superior compressibility. Moreover, all of the as-prepared GF@PDMS samples possessed high electrical conductivity (up to 34.3 S m-1), relatively low thermal conductivity (0.062-0.076 W m-1 K-1), and excellent electromagnetic interference shielding effectiveness (up to 36.1 dB) over a broad frequency range of 8.2-18 GHz, indicating their great potential as promising candidates for high-performance electromagnetic wave absorption in flexible electronic devices.
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Affiliation(s)
| | | | - Zhi Lin Ngoh
- CNRS International-NTU-Thales Research Alliance (CINTRA), UMI 3288 , Research Techno Plaza, 50 Nanyang Drive , Singapore 637553 , Singapore
| | - Roland Yingjie Tay
- Temasek Laboratories@NTU , 50 Nanyang Avenue , Singapore 639798 , Singapore
| | | | | | - Siu Hon Tsang
- Temasek Laboratories@NTU , 50 Nanyang Avenue , Singapore 639798 , Singapore
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22
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Shim YH, Lee KE, Shin TJ, Kim SO, Kim SY. Tailored Colloidal Stability and Rheological Properties of Graphene Oxide Liquid Crystals with Polymer-Induced Depletion Attractions. ACS NANO 2018; 12:11399-11406. [PMID: 30407782 DOI: 10.1021/acsnano.8b06320] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Graphene oxide liquid crystallinity (GO LC) has been widely exploited for high-performance graphene-based applications. In this regard, colloidal stability of GO LC suspension is a crucial requirement, particularly while polymers are often added to the GO LC. Unfortunately, current level of knowledge on how polymers influence the structure and properties of GO LC is not sufficient to systematically guide the development of applications. Here, we investigate the microstructure and rheological properties of GO LC suspensions in the presence of polymer additives with varying molecular weights and concentrations. Similar to conventional colloidal systems, non-negligible polymer-induced interactions are found in GO LC suspensions, which can effectively modulate the interaction among GO platelets and the relevant physical properties. On the basis of extensive small-angle X-ray scattering and rheological measurements, we demonstrate that, contrary to the general perception, polymer-induced depletion attraction can increase the colloidal stability of GO, while also preventing the vitrification of GO LC. In addition, a proper level of polymer additive can reduce the viscosity of GO LC suspensions by orders of magnitude, providing an effective route to GO LC-based solution processing. After all, the colloidal stability and rheological properties of GO can significantly impact the quality of GO. Therefore, we believe that our finding will be of great interest in the field of graphene-based applications, as it presents effective strategies for improving properties.
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Affiliation(s)
| | - Kyung Eun Lee
- National Creative Research Initiative Center for Multi-Dimensional Directed Nanoscale Assembly, Department of Materials Science & Engineering , KAIST , Daejeon , 34141 , Republic of Korea
| | | | - Sang Ouk Kim
- National Creative Research Initiative Center for Multi-Dimensional Directed Nanoscale Assembly, Department of Materials Science & Engineering , KAIST , Daejeon , 34141 , Republic of Korea
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