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Emelianov AV, Pettersson M, Bobrinetskiy II. Ultrafast Laser Processing of 2D Materials: Novel Routes to Advanced Devices. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2402907. [PMID: 38757602 DOI: 10.1002/adma.202402907] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/26/2024] [Revised: 04/23/2024] [Indexed: 05/18/2024]
Abstract
Ultrafast laser processing has emerged as a versatile technique for modifying materials and introducing novel functionalities. Over the past decade, this method has demonstrated remarkable advantages in the manipulation of 2D layered materials, including synthesis, structuring, functionalization, and local patterning. Unlike continuous-wave and long-pulsed optical methods, ultrafast lasers offer a solution for thermal heating issues. Nonlinear interactions between ultrafast laser pulses and the atomic lattice of 2D materials substantially influence their chemical and physical properties. This paper highlights the transformative role of ultrafast laser pulses in maskless green technology, enabling subtractive, and additive processes that unveil ways for advanced devices. Utilizing the synergetic effect between the energy states within the atomic layers and ultrafast laser irradiation, it is feasible to achieve unprecedented resolutions down to several nanometers. Recent advancements are discussed in functionalization, doping, atomic reconstruction, phase transformation, and 2D and 3D micro- and nanopatterning. A forward-looking perspective on a wide array of applications of 2D materials, along with device fabrication featuring novel physical and chemical properties through direct ultrafast laser writing, is also provided.
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Affiliation(s)
- Aleksei V Emelianov
- Nanoscience Center, Department of Chemistry, University of Jyväskylä, Jyväskylä, FI-40014, Finland
| | - Mika Pettersson
- Nanoscience Center, Department of Chemistry, University of Jyväskylä, Jyväskylä, FI-40014, Finland
| | - Ivan I Bobrinetskiy
- BioSense Institute - Research and Development Institute for Information Technologies in Biosystems, University of Novi Sad, Novi Sad, 21000, Serbia
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Im MJ, Kim JI, Hyeong SK, Moon BJ, Bae S. From Pristine to Heteroatom-Doped Graphene Quantum Dots: An Essential Review and Prospects for Future Research. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2304497. [PMID: 37496316 DOI: 10.1002/smll.202304497] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Indexed: 07/28/2023]
Abstract
Graphene quantum dots (GQDs) are carbon-based zero-dimensional materials that have received considerable scientific interest due to their exceptional optical, electrical, and optoelectrical properties. Their unique electronic band structures, influenced by quantum confinement and edge effects, differentiate the physical and optical characteristics of GQDs from other carbon nanostructures. Additionally, GQDs can be synthesized using various top-down and bottom-up approaches, distinguishing them from other carbon nanomaterials. This review discusses recent advancements in GQD research, focusing on their synthesis and functionalization for potential applications. Particularly, various methods for synthesizing functionalized GQDs using different doping routes are comprehensively reviewed. Based on previous reports, current challenges and future directions for GQDs research are discussed in detail herein.
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Affiliation(s)
- Min Ji Im
- Functional Composite Materials Research Center, Institute of Advanced Composite Materials, Korea Institute of Science and Technology (KIST), 92 Chudong-ro, Bongdong-eup, Wanju, Jeollabuk-do, 55324, Republic of Korea
- School of Materials Science and Engineering, Gwangju Institute of Science and Technology (GIST), 123 Cheomdan-gwagiro, Buk-gu, Gwangju, 61005, Republic of Korea
| | - Jin Il Kim
- Functional Composite Materials Research Center, Institute of Advanced Composite Materials, Korea Institute of Science and Technology (KIST), 92 Chudong-ro, Bongdong-eup, Wanju, Jeollabuk-do, 55324, Republic of Korea
| | - Seok-Ki Hyeong
- Functional Composite Materials Research Center, Institute of Advanced Composite Materials, Korea Institute of Science and Technology (KIST), 92 Chudong-ro, Bongdong-eup, Wanju, Jeollabuk-do, 55324, Republic of Korea
- Department of Energy Systems Research and Department of Materials Science and Engineering, Ajou University, Suwon, Gyeonggi-do, 16499, Republic of Korea
| | - Byung Joon Moon
- Functional Composite Materials Research Center, Institute of Advanced Composite Materials, Korea Institute of Science and Technology (KIST), 92 Chudong-ro, Bongdong-eup, Wanju, Jeollabuk-do, 55324, Republic of Korea
- Department of JBNU-KIST Industry-Academia Convergence Research, Jeonbuk National University, 567 Baekje-daero, Deokjin-gu, Jeonju, Jeollabuk-do, 54896, Republic ofKorea
| | - Sukang Bae
- Functional Composite Materials Research Center, Institute of Advanced Composite Materials, Korea Institute of Science and Technology (KIST), 92 Chudong-ro, Bongdong-eup, Wanju, Jeollabuk-do, 55324, Republic of Korea
- Department of JBNU-KIST Industry-Academia Convergence Research, Jeonbuk National University, 567 Baekje-daero, Deokjin-gu, Jeonju, Jeollabuk-do, 54896, Republic ofKorea
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Yang PC, Panda PK, Li CH, Ting YX, Ashraf Gandomi Y, Hsieh CT. Hydrothermal Synthesis of Functionalized Carbon Nanodots and Their Clusters as Ionic Probe for High Sensitivity and Selectivity for Sulfate Anions with Excellent Detection Level. Polymers (Basel) 2023; 15:2655. [PMID: 37376301 DOI: 10.3390/polym15122655] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Revised: 06/06/2023] [Accepted: 06/10/2023] [Indexed: 06/29/2023] Open
Abstract
Nitrogen-doped carbon nanodots (CNDs) were synthesized and utilized as sensing probes to detect different anions and metallic ions within aqueous solutions. The pristine CNDs were developed through a one-pot hydrothermal synthesis. o-Phenylenediamine was used as the precursor. A similar hydrothermal synthesis technique in the presence of polyethylene glycol (PEG) was adopted to form the PEG-coated CND clusters (CND-100k). Through photoluminescence (PL) quenching, both CND and PEG-coated CND suspensions display ultra-high sensitivity and selectivity towards HSO4- anions (Stern-Volmer quenching constant (KSV) value: 0.021 ppm-1 for CND and 0.062 ppm-1 for CND-100k) with an ultra-low detection limit (LOD value: 0.57 ppm for the CND and 0.19 ppm for CND-100k) in the liquid phase. The quenching mechanism of N-doped CNDs towards HSO4- ions involves forming the bidentate as well as the monodentate hydrogen bonding with the sulfate anionic moieties. The detection mechanism of metallic ions analyzed through the Stern-Volmer formulation reveals that the CND suspension is well suited for the detection of Fe3+ (KSV value: 0.043 ppm-1) and Fe2+ (KSV value: 0.0191 ppm-1) ions, whereas Hg2+ (KSV value: 0.078 ppm-1) sensing can be precisely performed by the PEG-coated CND clusters. Accordingly, the CND suspensions developed in this work can be employed as high-performance PL probes for detecting various anions and metallic ions in the liquid phase.
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Affiliation(s)
- Po-Chih Yang
- Department of Chemical Engineering and Materials Science, Yuan Ze University, Taoyuan 32003, Taiwan
| | - Pradeep Kumar Panda
- Department of Chemical Engineering and Materials Science, Yuan Ze University, Taoyuan 32003, Taiwan
| | - Cheng-Han Li
- Department of Chemical Engineering and Materials Science, Yuan Ze University, Taoyuan 32003, Taiwan
| | - Yu-Xuan Ting
- Department of Chemical Engineering and Materials Science, Yuan Ze University, Taoyuan 32003, Taiwan
| | - Yasser Ashraf Gandomi
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02142, USA
| | - Chien-Te Hsieh
- Department of Chemical Engineering and Materials Science, Yuan Ze University, Taoyuan 32003, Taiwan
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Tanwar S, Sharma A, Mathur D. A graphene quantum dots-glassy carbon electrode-based electrochemical sensor for monitoring malathion. BEILSTEIN JOURNAL OF NANOTECHNOLOGY 2023; 14:701-710. [PMID: 37346783 PMCID: PMC10280055 DOI: 10.3762/bjnano.14.56] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/10/2023] [Accepted: 05/19/2023] [Indexed: 06/23/2023]
Abstract
Graphene quantum dots (GQDs) were made via a hydrothermal process with glucose as a precursor undergoing carbonization. Different spectroscopic techniques were used to analyze the optical characteristics of GQDs, including UV-visible, photoluminescence, FTIR, and Raman spectroscopy. Atomic force microscopy, transmission electron microscopy, and X-ray diffraction were used to characterize the morphological and structural properties of GQDs. An electrochemical sensor was developed by drop casting GQDs on a glassy carbon electrode (GCE). The sensor detects the organophosphate pesticide malathion in a selective and sensitive manner. Using cyclic voltammetry, the sensor's oxidation-reduction behavior was investigated. Electrochemical impedance spectroscopy was conducted to study the electrochemical properties of the modified the GQDs/GCE working electrode, which showed excellent charge transfer properties. We measured malathion in varying concentrations between 1 to 30 µM using differential pulse voltammetry, which resulted in a limit of detection of 0.62 nM. GQDs can thus be used to develop electrochemical sensors for the detection of pesticides in water.
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Affiliation(s)
- Sanju Tanwar
- Centre of Nanotechnology, Rajasthan Technical University, Kota, Rajasthan, India
| | - Aditi Sharma
- Materials Research Centre, Malaviya National Institute of Technology, Jaipur, Rajasthan, India
| | - Dhirendra Mathur
- Centre of Nanotechnology, Rajasthan Technical University, Kota, Rajasthan, India
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Lagos KJ, García D, Cuadrado CF, de Souza LM, Mezzacappo NF, da Silva AP, Inada N, Bagnato V, Romero MP. Carbon dots: Types, preparation, and their boosted antibacterial activity by photoactivation. Current status and future perspectives. WILEY INTERDISCIPLINARY REVIEWS. NANOMEDICINE AND NANOBIOTECHNOLOGY 2023:e1887. [PMID: 37100045 DOI: 10.1002/wnan.1887] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/04/2022] [Revised: 02/14/2023] [Accepted: 03/03/2023] [Indexed: 04/28/2023]
Abstract
Carbon dots (CDs) correspond to carbon-based materials (CBM) with sizes usually below 10 nm. These nanomaterials exhibit attractive properties such us low toxicity, good stability, and high conductivity, which have promoted their thorough study over the past two decades. The current review describes four types of CDs: carbon quantum dots (CQDs), graphene quantum dots (GQDs), carbon nanodots (CNDs), and carbonized polymers dots (CPDs), together with the state of the art of the main routes for their preparation, either by "top-down" or "bottom-up" approaches. Moreover, among the various usages of CDs within biomedicine, we have focused on their application as a novel class of broad-spectrum antibacterial agents, concretely, owing their photoactivation capability that triggers an enhanced antibacterial property. Our work presents the recent advances in this field addressing CDs, their composites and hybrids, applied as photosensitizers (PS), and photothermal agents (PA) within antibacterial strategies such as photodynamic therapy (PDT), photothermal therapy (PTT), and synchronic PDT/PTT. Furthermore, we discuss the prospects for the possible future development of large-scale preparation of CDs, and the potential for these nanomaterials to be employed in applications to combat other pathogens harmful to human health. This article is categorized under: Therapeutic Approaches and Drug Discovery > Nanomedicine for Infectious Disease.
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Affiliation(s)
- Karina J Lagos
- Department of Materials, Escuela Politécnica Nacional (EPN), Quito, Ecuador
| | - David García
- Department of Materials, Escuela Politécnica Nacional (EPN), Quito, Ecuador
| | | | | | | | - Ana Paula da Silva
- São Carlos Institute of Physics, University of São Paulo (USP), São Carlos, Brazil
| | - Natalia Inada
- São Carlos Institute of Physics, University of São Paulo (USP), São Carlos, Brazil
| | - Vanderlei Bagnato
- São Carlos Institute of Physics, University of São Paulo (USP), São Carlos, Brazil
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Bezuneh TT, Fereja TH, Li H, Jin Y. Solid-Phase Pyrolysis Synthesis of Highly Fluorescent Nitrogen/Sulfur Codoped Graphene Quantum Dots for Selective and Sensitive Diversity Detection of Cr(VI). LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:1538-1547. [PMID: 36652448 DOI: 10.1021/acs.langmuir.2c02966] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
In this study, a simple one-step solid-phase pyrolysis synthesis procedure was employed to prepare N and S codoped highly fluorescent graphene quantum dots (N/S-GQDs). The as-synthesized quantum dot showed λexcitation-dependent blue fluorescence (FL) emission with a relative quantum yield of about 22% and displayed good biocompatibility, high water dispersibility, and excellent stability under extreme conditions (i.e., ionic strength, pH, and temperature). The potential applicability of the as-synthesized quantum dot was tested by employing solution- and paper-based FL detection modes for Cr(VI) detection. The proposed solution- and paper-based FL sensors showed lower limit of detection (LOD) values of 0.01 and 0.4 μM, respectively. The as-constructed paper- and solution-based FL sensors proved the feasibility of sensitive, cost-effective, and on-site detection of Cr(VI).
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Affiliation(s)
- Terefe Tafese Bezuneh
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, No. 5625 Renmin Street, Changchun 130022, P. R. China
- University of Science and Technology of China, Hefei 230026, P. R. China
- Department of Chemistry, College of Natural Sciences, Arbaminch University, P.O. Box 21, Arbaminch 4400, Ethiopia
| | - Tadesse Haile Fereja
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, No. 5625 Renmin Street, Changchun 130022, P. R. China
- Department of Pharmacy, College of Medicine and Health Science, Ambo University, P.O. Box 19, Ambo 7260, Ethiopia
| | - Haijuan Li
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, No. 5625 Renmin Street, Changchun 130022, P. R. China
| | - Yongdong Jin
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, No. 5625 Renmin Street, Changchun 130022, P. R. China
- University of Science and Technology of China, Hefei 230026, P. R. China
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Ahmad V, Ansari MO. Antimicrobial Activity of Graphene-Based Nanocomposites: Synthesis, Characterization, and Their Applications for Human Welfare. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:nano12224002. [PMID: 36432288 PMCID: PMC9694244 DOI: 10.3390/nano12224002] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/09/2022] [Revised: 10/29/2022] [Accepted: 10/31/2022] [Indexed: 05/15/2023]
Abstract
Graphene (GN)-related nanomaterials such as graphene oxide, reduced graphene oxide, quantum dots, etc., and their composites have attracted significant interest owing to their efficient antimicrobial properties and thus newer GN-based composites are being readily developed, characterized, and explored for clinical applications by scientists worldwide. The GN offers excellent surface properties, i.e., a large surface area, pH sensitivity, and significant biocompatibility with the biological system. In recent years, GN has found applications in tissue engineering owing to its impressive stiffness, mechanical strength, electrical conductivity, and the ability to innovate in two-dimensional (2D) and three-dimensional (3D) design. It also offers a photothermic effect that potentiates the targeted killing of cells via physicochemical interactions. It is generally synthesized by physical and chemical methods and is characterized by modern and sophisticated analytical techniques such as NMR, Raman spectroscopy, electron microscopy, etc. A lot of reports show the successful conjugation of GN with existing repurposed drugs, which improves their therapeutic efficacy against many microbial infections and also its potential application in drug delivery. Thus, in this review, the antimicrobial potentialities of GN-based nanomaterials, their synthesis, and their toxicities in biological systems are discussed.
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Affiliation(s)
- Varish Ahmad
- Health Information Technology Department, The Applied College, King Abdulaziz University, Jeddah 21589, Saudi Arabia
- Centre of Artificial Intelligence for Precision Medicines, King Abdulaziz University, Jeddah 21589, Saudi Arabia
- Correspondence:
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Carbon Nanoparticles Extracted from Date Palm Fronds for Fluorescence Bioimaging: In Vitro Study. J Funct Biomater 2022; 13:jfb13040218. [PMID: 36412859 PMCID: PMC9680435 DOI: 10.3390/jfb13040218] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2022] [Revised: 10/25/2022] [Accepted: 10/31/2022] [Indexed: 11/06/2022] Open
Abstract
Numerous studies have been reported on single- and multicolored highly fluorescent carbon nanoparticles (FCNPs) originating from various sources and their potential applications in bioimaging. Herein, multicolored biocompatible carbon nanoparticles (CNPs) unsheathed from date palm fronds were studied. The extracted CNPs were characterized via several microscopic and spectroscopic techniques. The results revealed that the CNPs were crystalline graphitic and hydrophilic in nature with sizes ranging from 4 to 20 nm. The unsheathed CNPs showed exemplary photoluminescent (PL) properties. They also emitted bright blue colors when exposed to ultraviolet (UV) light. Furthermore, in vitro cellular uptake and cell viability in the presence of CNPs were also investigated. The cell viability of human colon cancer (HCT-116) and breast adenocarcinoma (MCF-7) cell lines with aqueous CNPs at different concentrations was assessed by a cell metabolic activity assay (MTT) for 24 and 48 h incubations. The results were combined to generate dose-response curves for the CNPs and evaluate the severity of their toxicity. The CNPs showed adequate fluorescence with high cell viability for in vitro cell imaging. Under the laser-scanning confocal microscope, the CNPs with HCT-116 and MCF-7 cell lines showed multicolor fluorescence emissions, including blue, green, and red colors when excited at 405, 458, and 561 nm, respectively. These results prove that unsheathed CNPs from date palm fronds can be used in diverse biomedical applications because of their low cytotoxicity, adequate fluorescence, eco-friendly nature, and cheap production.
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Mohiuddin SMUG, Aydarous A, Alshahrie A, Saeed A, Memić A, Abdullahi S, Salah N. Structural, morphological, and optical properties of carbon nanoparticles unsheathed from date palm fronds. RSC Adv 2022; 12:27411-27420. [PMID: 36276045 PMCID: PMC9513680 DOI: 10.1039/d2ra04189h] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Accepted: 08/31/2022] [Indexed: 01/22/2023] Open
Abstract
Several studies have reported the synthesis of carbon nanoparticles (CNPs) by various methods. In this study, an easy one-step process to unsheathe CNPs from date palm fronds through a top-down ball milling method has been reported. The CNPs were characterized using various spectroscopic and microscopic methods to determine their structural and morphological features, optical properties, crystallinity, physicochemical properties, and particle stability. Transmission electron microscopy (TEM) revealed that the obtained CNPs' size ranged from 4 to 22 nm in a crystalline form. Scanning electron microscopy (SEM) confirmed their spherical shape, while the maximum photoluminescence (PL) intensity was recorded at 464 nm when excited at 375 nm. The unsheathed CNPs produced a good quantum yield (QY) of 3.24%. Furthermore, the CNPs exhibited high Raman ratios of I D/I G and I 2D/I G with values of 0.59 and 0.04, respectively, verifying their multilayer crystalline graphitic nature. These Raman ratios also agree with the X-ray diffractometry (XRD) results. The CNPs' sp2 and sp3 carbon bonds were confirmed by X-ray photoelectron spectroscopy (XPS), with oxygen on the surface forming carboxyl and carbonyl groups with no other observable impurities. Furthermore, the extracted CNPs showed excellent PL properties for up- and down-conversion. These properties are exemplary for low-cost biomass with potential applications in biomedicine. Therefore, the extracted CNPs reported in this study have potential applications in optical imaging.
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Affiliation(s)
- Shaik Muhammad U G Mohiuddin
- Department of Physics, Faculty of Sciences, King Abdulaziz University 21589 Jeddah Saudi Arabia
- Center of Nanotechnology, King Abdulaziz University 21589 Jeddah Saudi Arabia
| | - Abdulkadir Aydarous
- Department of Physics, Faculty of Sciences, King Abdulaziz University 21589 Jeddah Saudi Arabia
| | - Ahmed Alshahrie
- Department of Physics, Faculty of Sciences, King Abdulaziz University 21589 Jeddah Saudi Arabia
- Center of Nanotechnology, King Abdulaziz University 21589 Jeddah Saudi Arabia
| | - Abdu Saeed
- Department of Physics, Faculty of Sciences, King Abdulaziz University 21589 Jeddah Saudi Arabia
- Center of Nanotechnology, King Abdulaziz University 21589 Jeddah Saudi Arabia
- Department of Physics, Faculty of Science, Thamar University Thamar Yemen
| | - Adnan Memić
- Center of Nanotechnology, King Abdulaziz University 21589 Jeddah Saudi Arabia
| | - Shittu Abdullahi
- Department of Physics, Faculty of Sciences, King Abdulaziz University 21589 Jeddah Saudi Arabia
- Center of Nanotechnology, King Abdulaziz University 21589 Jeddah Saudi Arabia
- Department of Physics, Faculty of Science, Gombe State University Gombe Nigeria
| | - Numan Salah
- Center of Nanotechnology, King Abdulaziz University 21589 Jeddah Saudi Arabia
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Altuwirqi RM. Graphene Nanostructures by Pulsed Laser Ablation in Liquids: A Review. MATERIALS (BASEL, SWITZERLAND) 2022; 15:5925. [PMID: 36079307 PMCID: PMC9456608 DOI: 10.3390/ma15175925] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Revised: 08/17/2022] [Accepted: 08/20/2022] [Indexed: 06/15/2023]
Abstract
High-quality graphene has demonstrated remarkable mechanical, thermal, electronic, and optical properties. These features have paved the road for the introduction of graphene into numerous applications such as optoelectronics and energy devices, photodegradation, bioimaging, photodetectors, sensors, and biosensors. Due to this, graphene research has accelerated exponentially, with the aim of reaching a sustainable large-scale production process of high-quality graphene that can produce graphene-based technologies at an industrial scale. There exist numerous routes for graphene fabrication; however, pulsed laser ablation in liquids (PLAL) has emerged as a simple, fast, green, and environmentally friendly method as it does not require the use of toxic chemicals. Moreover, it does not involve the use of expensive vacuum chambers or clean rooms. However, the great advantage of PLAL is its ability to control the size, shape, and structure of the produced nanostructures through the choice of laser parameters and liquid used. Consequently, this review will focus on recent research on the synthesis of graphene nanosheets and graphene quantum dots via PLAL and the effect of experimental parameters such as laser wavelength, pulse width, pulse energy, repetition rate, irradiation time, and liquid media on the produced nanostructures. Moreover, it will discuss extended PLAL techniques which incorporate other methods into PLAL. Finally, different applications that utilize nanostructures produced by PLAL will be highlighted. We hope that this review will provide a useful guide for researchers to further develop the PLAL technique and the fabrication of graphene-based materials.
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Affiliation(s)
- Reem M Altuwirqi
- Physics Department, Faculty of Science, King Abdulaziz University, P.O. Box 42805, Jeddah 21551, Saudi Arabia
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Sierra-Trillo MI, Thomann R, Krossing I, Hanselmann R, Mülhaupt R, Thomann Y. Laser Ablation on Isostatic Graphite-A New Way to Create Exfoliated Graphite. MATERIALS (BASEL, SWITZERLAND) 2022; 15:5474. [PMID: 36013620 PMCID: PMC9410218 DOI: 10.3390/ma15165474] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/23/2022] [Revised: 08/04/2022] [Accepted: 08/06/2022] [Indexed: 06/15/2023]
Abstract
In search of a new way to fabricate graphene-like materials, isostatic graphite targets were ablated using high peak power with a nanosecond-pulsed infrared laser. We conducted dry ablations in an argon atmosphere and liquid-phase ablations in the presence of a liquid medium (water or toluene). After the dry ablation, the SEM images of the target showed carbon in the form of a volcano-like grain structure, which seemed to be the result of liquid carbon ejected from the ablation center. No graphite exfoliation could be achieved using dry ablation. When using liquid phase ablation with water or toluene as a liquid medium, no traces of the formation of liquid carbon were found, but cleaner and deeper craters were observed. In particular, when using toluene as a liquid medium, typical graphite exfoliation was found. We believe that due to the extremely high pressure and high temperature induced by the laser pulses, toluene was able to intercalate into the graphite layers. Between the laser pulses, the intercalated toluene was able to flash evaporate and blow-up the graphite, which resulted in exfoliated graphite. Exfoliated graphite was found on the ablated graphite surface, as well as in the toluene medium. The ablation experiments with toluene undertaken in this study demonstrated an effective method of producing micrometer-sized graphene material. When using water as a liquid medium, no massive graphite exfoliation was observed. This meant that under the used laser conditions, toluene was a better intercalant for graphite exfoliation than water.
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Affiliation(s)
- Maria Isabel Sierra-Trillo
- Freiburger Materialforschungszentrum, Stefan-Meier-Straße 21, D-79104 Freiburg im Breisgau, Germany
- Institut für Anorganische und Analytische Chemie, Albert Straße 21, D-79104 Freiburg im Breisgau, Germany
| | - Ralf Thomann
- Freiburger Materialforschungszentrum, Stefan-Meier-Straße 21, D-79104 Freiburg im Breisgau, Germany
- Institut für Makromolekulare Chemie, Stefan-Meier-Straße 31, D-79104 Freiburg im Breisgau, Germany
| | - Ingo Krossing
- Freiburger Materialforschungszentrum, Stefan-Meier-Straße 21, D-79104 Freiburg im Breisgau, Germany
- Institut für Anorganische und Analytische Chemie, Albert Straße 21, D-79104 Freiburg im Breisgau, Germany
| | - Ralf Hanselmann
- Institut für Makromolekulare Chemie, Stefan-Meier-Straße 31, D-79104 Freiburg im Breisgau, Germany
| | - Rolf Mülhaupt
- Freiburger Materialforschungszentrum, Stefan-Meier-Straße 21, D-79104 Freiburg im Breisgau, Germany
- Institut für Makromolekulare Chemie, Stefan-Meier-Straße 31, D-79104 Freiburg im Breisgau, Germany
| | - Yi Thomann
- Freiburger Materialforschungszentrum, Stefan-Meier-Straße 21, D-79104 Freiburg im Breisgau, Germany
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Pola CC, Rangnekar SV, Sheets R, Szydlowska BM, Downing JR, Parate KW, Wallace SG, Tsai D, Hersam MC, Gomes CL, Claussen JC. Aerosol-jet-printed graphene electrochemical immunosensors for rapid and label-free detection of SARS-CoV-2 in saliva. 2D MATERIALS 2022; 9:035016. [PMID: 35785019 PMCID: PMC9245948 DOI: 10.1088/2053-1583/ac7339] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Rapid, inexpensive, and easy-to-use coronavirus disease 2019 (COVID-19) home tests are key tools in addition to vaccines in the world-wide fight to eliminate national and local shutdowns. However, currently available tests for SARS-CoV-2, the virus that causes COVID-19, are too expensive, painful, and irritating, or not sufficiently sensitive for routine, accurate home testing. Herein, we employ custom-formulated graphene inks and aerosol jet printing (AJP) to create a rapid electrochemical immunosensor for direct detection of SARS-CoV-2 Spike Receptor-Binding Domain (RBD) in saliva samples acquired non-invasively. This sensor demonstrated limits of detection that are considerably lower than most commercial SARS-CoV-2 antigen tests (22.91 ± 4.72 pg/mL for Spike RBD and 110.38 ± 9.00 pg/mL for Spike S1) as well as fast response time (~30 mins), which was facilitated by the functionalization of printed graphene electrodes in a single-step with SARS-CoV-2 polyclonal antibody through the carbodiimide reaction without the need for nanoparticle functionalization or secondary antibody or metallic nanoparticle labels. This immunosensor presents a wide linear sensing range from 1 to 1000 ng/mL and does not react with other coexisting influenza viruses such as H1N1 hemagglutinin. By combining high-yield graphene ink synthesis, automated printing, high antigen selectivity, and rapid testing capability, this work offers a promising alternative to current SARS-CoV-2 antigen tests.
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Affiliation(s)
- Cícero C. Pola
- Department of Mechanical Engineering, Iowa State University, Ames, IA 50011, USA
| | - Sonal V. Rangnekar
- Department of Materials Science and Engineering, Northwestern University, Evanston, IL 60208, USA
| | - Robert Sheets
- Department of Mechanical Engineering, Iowa State University, Ames, IA 50011, USA
| | - Beata M. Szydlowska
- Department of Materials Science and Engineering, Northwestern University, Evanston, IL 60208, USA
| | - Julia R. Downing
- Department of Materials Science and Engineering, Northwestern University, Evanston, IL 60208, USA
| | - Kshama W. Parate
- Department of Mechanical Engineering, Iowa State University, Ames, IA 50011, USA
| | - Shay G. Wallace
- Department of Materials Science and Engineering, Northwestern University, Evanston, IL 60208, USA
| | - Daphne Tsai
- Department of Materials Science and Engineering, Northwestern University, Evanston, IL 60208, USA
| | - Mark C. Hersam
- Department of Materials Science and Engineering, Northwestern University, Evanston, IL 60208, USA
- Department of Chemistry, Northwestern University, Evanston, IL 60208, USA
- Department of Electrical and Computer Engineering, Northwestern University, Evanston, IL 60208, USA
| | - Carmen L. Gomes
- Department of Mechanical Engineering, Iowa State University, Ames, IA 50011, USA
| | - Jonathan C. Claussen
- Department of Mechanical Engineering, Iowa State University, Ames, IA 50011, USA
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13
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Carbon Transformation Induced by High Energy Excimer Treatment. MATERIALS 2022; 15:ma15134614. [PMID: 35806736 PMCID: PMC9267606 DOI: 10.3390/ma15134614] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/15/2022] [Revised: 06/27/2022] [Accepted: 06/28/2022] [Indexed: 01/09/2023]
Abstract
The main aim of this study was to describe the treatment of carbon sheet with a high-energy excimer laser. The excimer modification changed the surface chemistry and morphology of carbon. The appearance of specific carbon forms and modifications have been detected due to exposure to laser beam fluencies up to 8 J cm−2. High fluence optics was used for dramatic changes in the carbon layer with the possibility of Q-carbon formation; a specific amorphous carbon phase was detected with Raman spectroscopy. The changes in morphology were determined with atomic force microscopy and confirmed with scanning electron microscopy, where the partial formation of the Q-carbon phase was detected. Energy dispersive spectroscopy (EDS) was applied for a detailed study of surface chemistry. The particular shift of functional groups induced on laser-treated areas was determined by X-ray photoelectron spectroscopy. For the first time, high-dose laser exposure successfully induced a specific amorphous carbon phase.
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14
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Zhang C, Zhang W, Karadas F, Low J, Long R, Liang C, Wang J, Li Z, Xiong Y. Laser-ablation assisted strain engineering of gold nanoparticles for selective electrochemical CO 2 reduction. NANOSCALE 2022; 14:7702-7710. [PMID: 35551317 DOI: 10.1039/d2nr01400a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Strain engineering can endow versatile functions, such as refining d-band center and inducing lattice mismatch, on catalysts for a specific reaction. To this end, effective strain engineering for introducing strain on the catalyst is highly sought in various catalytic applications. Herein, a facile laser ablation in liquid (LAL) strategy is adopted to synthesize gold nanoparticles (Au NPs) with rich compressive strain (Au-LAL) for electrochemical CO2 reduction. It is demonstrated that the rich compressive strain can greatly promote the electrochemical CO2 reduction performance of Au, achieving a CO partial current density of 24.9 mA cm-2 and a maximum CO faradaic efficiency of 97% at -0.9 V for Au-LAL, while it is only 2.77 mA cm-2 and 16.2% for regular Au nanoparticles (Au-A). As revealed by the in situ Raman characterization and density functional theory calculations, the presence of compressive strain can induce a unique electronic structure change in Au NPs, significantly up-shifting the d-band center of Au. Such a phenomenon can greatly enhance the adsorption strength of Au NPs toward the key intermediate of CO2 reduction (i.e., *COOH). More interestingly, we demonstrate that, an important industrial chemical feedstock, syngas, can be obtained by simply mixing Au-LAL with Au-A in a suitable ratio. This work provides a promising method for introducing strain in metal NPs and demonstrates the important role of strain in tuning the performance and selectivity of catalysts.
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Affiliation(s)
- Chao Zhang
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Zhejiang Normal University, Jinhua, Zhejiang 321004, China.
| | - Wei Zhang
- Institute for Energy Research, Jiangsu University, Zhenjiang, Jiangsu 212013, China
| | - Ferdi Karadas
- National Nanotechnology Research Center, and Department of Chemistry, Bilkent University, 06800 Ankara, Turkey
| | - Jingxiang Low
- School of Chemistry and Materials Science, University of Science and Technology of China, Hefei 230026, China.
| | - Ran Long
- School of Chemistry and Materials Science, University of Science and Technology of China, Hefei 230026, China.
| | - Changhao Liang
- Key Laboratory of Materials Physics and Anhui Key Laboratory of Nanomaterials and Nanotechnology, Institute of Solid State Physics, Chinese Academy of Sciences, Hefei 230031, China.
| | - Jin Wang
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Zhejiang Normal University, Jinhua, Zhejiang 321004, China.
| | - Zhengquan Li
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Zhejiang Normal University, Jinhua, Zhejiang 321004, China.
| | - Yujie Xiong
- School of Chemistry and Materials Science, University of Science and Technology of China, Hefei 230026, China.
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15
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A Methodical Review on Carbon-Based Nanomaterials in Energy-Related Applications. ADSORPT SCI TECHNOL 2022. [DOI: 10.1155/2022/4438286] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Carbon nanomaterials are endowed with novel and magnificent optical, electrical, chemical, mechanical, and thermal properties, with a promising prospect in different advanced applications such as electronics, batteries, capacitors, wastewater treatment, membranes, heterogeneous catalysis, and medical sciences. However, macroscopic synthesis of carbon materials for industrial use has been a great challenge. Furthermore, structural nonhomogeneity and indefinite fabrication have hindered vigorous and consistent implementation of these materials in extensive technologies. Nevertheless, they offer exotic physics, and as a result, they have continued to attract great interest from the scientific community in an effort aimed to optimize their properties through innovative synthesis techniques, ensuring macroscopic production and discovering new applications. Hence, this study endeavours to provide a conscious review of these materials via the comprehensive discussion of the various allotropes of carbon (fullerenes, carbon nanotubes, and graphene), synthesis techniques (arc discharge, laser ablation, and chemical vapor deposition), and their applications in energy-related fields (batteries, capacitors, photocells, hydrogen storage, sensors, etc.) and their impending prospects.
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16
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Yu R, Liang S, Ru Y, Li L, Wang Z, Chen J, Chen L. A Facile Preparation of Multicolor Carbon Dots. NANOSCALE RESEARCH LETTERS 2022; 17:32. [PMID: 35258709 PMCID: PMC8904681 DOI: 10.1186/s11671-022-03661-z] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/14/2021] [Accepted: 01/13/2022] [Indexed: 05/23/2023]
Abstract
Carbon dots (CDs) have raised broad interest because of their great potential in the fluorescence related fields, such as photocatalysis and bioimaging. CDs exhibit different optical properties when dissolved in various solvents. However, the effects of solvents during the process of preparation on the fluorescence emission of CDs are still unclear. In this work, CDs were prepared by a simple one-pot solvothermal route. Typical critic acid and thiourea were used as precursors. Through changing the volume ratio of water to N,N-dimethylformamide (DMF), we have obtained color tunable CDs, with the emission wavelength from 450 to 640 nm. TEM images, Raman and XPS spectra indicate that the particle size of CDs and the content of surface functional groups (C-N/C-S and C≡N bonds) increase with the increasing ratio of DMF to water, which results in the optimal emission wavelength red-shifted. The prepared multicolor CDs may have prospects in the lighting applications.
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Affiliation(s)
- Risheng Yu
- Department of Optical Engineering, Zhejiang Prov Key Lab Carbon Cycling Forest Ecosy, College of Environmental and Resource Sciences, Zhejiang Provincial Key Laboratory of Chemical Utilization of Forestry Biomass, Zhejiang A&F University, Hangzhou, 311300, China
| | - Sen Liang
- Department of Optical Engineering, Zhejiang Prov Key Lab Carbon Cycling Forest Ecosy, College of Environmental and Resource Sciences, Zhejiang Provincial Key Laboratory of Chemical Utilization of Forestry Biomass, Zhejiang A&F University, Hangzhou, 311300, China
| | - Yi Ru
- Department of Optical Engineering, Zhejiang Prov Key Lab Carbon Cycling Forest Ecosy, College of Environmental and Resource Sciences, Zhejiang Provincial Key Laboratory of Chemical Utilization of Forestry Biomass, Zhejiang A&F University, Hangzhou, 311300, China
| | - Lu Li
- Department of Optical Engineering, Zhejiang Prov Key Lab Carbon Cycling Forest Ecosy, College of Environmental and Resource Sciences, Zhejiang Provincial Key Laboratory of Chemical Utilization of Forestry Biomass, Zhejiang A&F University, Hangzhou, 311300, China
| | - Zhikun Wang
- Department of Optical Engineering, Zhejiang Prov Key Lab Carbon Cycling Forest Ecosy, College of Environmental and Resource Sciences, Zhejiang Provincial Key Laboratory of Chemical Utilization of Forestry Biomass, Zhejiang A&F University, Hangzhou, 311300, China
| | - Junlang Chen
- Department of Optical Engineering, Zhejiang Prov Key Lab Carbon Cycling Forest Ecosy, College of Environmental and Resource Sciences, Zhejiang Provincial Key Laboratory of Chemical Utilization of Forestry Biomass, Zhejiang A&F University, Hangzhou, 311300, China.
| | - Liang Chen
- Department of Optical Engineering, Zhejiang Prov Key Lab Carbon Cycling Forest Ecosy, College of Environmental and Resource Sciences, Zhejiang Provincial Key Laboratory of Chemical Utilization of Forestry Biomass, Zhejiang A&F University, Hangzhou, 311300, China.
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17
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Lin YS, Lin KS, Chen Y, Mdlovu NV. Synthesis, characterization, and application of gene conjugated polymerized nitrogen-doped graphene quantum dots carriers for in vivo bio-targeting in neuroblastoma treatment. J Taiwan Inst Chem Eng 2022. [DOI: 10.1016/j.jtice.2021.104167] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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18
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Ozhukil Valappil M, Alwarappan S, Pillai VK. Phosphorene quantum dots: synthesis, properties and catalytic applications. NANOSCALE 2022; 14:1037-1053. [PMID: 34994751 DOI: 10.1039/d1nr07340k] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Phosphorene quantum dots (PQDs) belong to a new class of zero-dimensional functional nanostructures with unique physicochemical and surface properties in comparison with few-layer phosphorene and other 2D analogues. Tunable band gap as a function of number of layers, ease of passivation and high carrier mobility of PQDs have attracted considerable attention in catalysis research due to which spectacular progress has been made in PQD research over the last few years. PQDs are now considered as promising catalytic materials for electrocatalytic water splitting and nitrogen reduction, lithium-sulfur batteries, solar light-driven energy devices and biocatalysis, either in pristine form or as an active component for constructing heterostructures with other 2D materials. In the light of these recent advances, it is worthwhile to review and consolidate PQD research in catalytic applications to understand the challenges ahead and suggest possible solutions. In this review, we systematically summarize various synthetic strategies including ultrasonic and electrochemical exfoliation, solvothermal treatment, blender breaking, milling, crushing and pulsed laser irradiation. Furthermore, the physiochemical properties of PQDs are discussed based on both experimental and theoretical perspectives. The potential applications of PQDs in catalysis with special emphasis on photocatalysis (solar light-driven energy devices) and electrocatalysis (oxygen evolution reactions and hydrogen evolution reactions) -are critically discussed along with the present status, challenges and future perspectives.
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Affiliation(s)
| | - Subbiah Alwarappan
- CSIR-Central Electrochemical Research Institute, Karaikudi 630003, Tamil Nadu, India.
| | - Vijayamohanan K Pillai
- Indian Institute of Science Education and Research, Mangalam (P.O.), Tirupati 517507, Andhra Pradesh, India.
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19
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20
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Dorontić S, Jovanović S, Bonasera A. Shedding Light on Graphene Quantum Dots: Key Synthetic Strategies, Characterization Tools, and Cutting-Edge Applications. MATERIALS 2021; 14:ma14206153. [PMID: 34683745 PMCID: PMC8539078 DOI: 10.3390/ma14206153] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/16/2021] [Revised: 10/07/2021] [Accepted: 10/14/2021] [Indexed: 01/09/2023]
Abstract
During the last 20 years, the scientific community has shown growing interest towards carbonaceous nanomaterials due to their appealing mechanical, thermal, and optical features, depending on the specific nanoforms. Among these, graphene quantum dots (GQDs) recently emerged as one of the most promising nanomaterials due to their outstanding electrical properties, chemical stability, and intense and tunable photoluminescence, as it is witnessed by a booming number of reported applications, ranging from the biological field to the photovoltaic market. To date, a plethora of synthetic protocols have been investigated to modulate the portfolio of features that GQDs possess and to facilitate the use of these materials for target applications. Considering the number of publications and the rapid evolution of this flourishing field of research, this review aims at providing a broad overview of the most widely established synthetic protocols and offering a detailed review of some specific applications that are attracting researchers’ interest.
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Affiliation(s)
- Slađana Dorontić
- “Vinča” Institute of Nuclear Sciences—National Institute of the Republic of Serbia, University of Belgrade, P.O. Box 522, 11000 Belgrade, Serbia;
| | - Svetlana Jovanović
- “Vinča” Institute of Nuclear Sciences—National Institute of the Republic of Serbia, University of Belgrade, P.O. Box 522, 11000 Belgrade, Serbia;
- Correspondence: (S.J.); (A.B.)
| | - Aurelio Bonasera
- Palermo Research Unit, Department of Physics and Chemistry—Emilio Segrè, University of Palermo, 90128 Palermo, Italy
- Correspondence: (S.J.); (A.B.)
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21
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Tribological characterization of graphene oxide by laser ablation as a grease additive. INTERNATIONAL JOURNAL OF CHEMICAL REACTOR ENGINEERING 2021. [DOI: 10.1515/ijcre-2021-0168] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
In this work, the structural and tribological behavior of graphene oxide samples as a grease addi-tive was studied. By Nd:YAG laser ablation system and using graphite target at two laser energy of 0.3 W and 0.6 W, graphene oxide (GO) samples were successfully prepared. GO samples were characterized using Raman spectroscopy, field emission scanning electron microscopy (FESEM), Fourier transform infrared spectroscopy (FTIR) and energy dispersive X-ray spectroscopy (EDAX). Also, tribological behaviors of the lubricating grease, with and without the graphene oxide in grease, by the pin-on disc tribometer were determined. The Raman spectroscopy measurements showed D and G bound, which confirmed the successful synthesis of the graphene oxide sample and also the I
D/I
G, decreased by increasing laser power due to decreasing disorder in graphene oxide structure. FESEM images show that by ablating carbon atoms from graphite target in water, particles assemble to form a GO micro-cluster due to thermodynamically agglomeration with average size of about 3–4 µm, which the size of them depends on the laser pulse energy. Based on FTIR and EDAX analysis, GO sample which prepared at lower laser energy possessed the highest content of oxygen and oxygen functional groups. In addition, the results of tribological behavior showed that the friction-reducing ability and antiwear property of the grease can be improved effectively with the addition of GO. However, it is revealed that the small size GO has a better lubricating performance and therefore cluster size appears to play a role in the degree of wear protection due to its impact on the physical and chemical properties. The results of this study indicate that the GO sample prepared at lower laser energy (0.3 W) has a smaller size and the higher the oxygen content therefore provide better friction-reducing and anti-wear effect. Also, additive of graphene oxide in lubricating grease decreases coefficient of friction as well as wear. Based on our results, the application of GO as an additive in grease leads to increased performance of the lubricated kinematic machine.
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22
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Yang PC, Ting YX, Gu S, Ashraf Gandomi Y, Li J, Hsieh CT. Effect of Solvent on Fluorescence Emission from Polyethylene Glycol-Coated Graphene Quantum Dots under Blue Light Illumination. NANOMATERIALS 2021; 11:nano11061383. [PMID: 34073829 PMCID: PMC8225077 DOI: 10.3390/nano11061383] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/21/2021] [Revised: 05/08/2021] [Accepted: 05/16/2021] [Indexed: 11/16/2022]
Abstract
To explore aggregate-induced emission (AIE) properties, this study adopts a one-pot hydrothermal route for synthesizing polyethylene glycol (PEG)-coated graphene quantum dot (GQD) clusters, enabling the emission of highly intense photoluminescence under blue light illumination. The hydrothermal synthesis was performed at 300 °C using o-phenylenediamine as the nitrogen and carbon sources in the presence of PEG. Three different solvents, propylene glycol methyl ether acetate (PGMEA), ethanol, and water, were used for dispersing the PEG-coated GQDs, where extremely high fluorescent emission was achieved at 530-550 nm. It was shown that the quantum yield (QY) of PEG-coated GQD suspensions is strongly dependent on the solvent type. The pristine GQD suspension tends to be quenched (i.e., QY: ~1%) when dispersed in PGMEA (aggregation-caused quenching). However, coating GQD nanoparticles with polyethylene glycol results in substantial enhancement of the quantum yield. When investigating the photoluminescence emission from PEG-coated GQD clusters, the surface tension of the solvents was within the range of from 26.9 to 46.0 mN/m. This critical index can be tuned for assessing the transition point needed to activate the AIE mechanism which ultimately boosts the fluorescence intensity. The one-pot hydrothermal route established in this study can be adopted to engineer PEG-coated GQD clusters with solid-state PL emission capabilities, which are needed for next-generation optical, bio-sensing, and energy storage/conversion devices.
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Affiliation(s)
- Po-Chih Yang
- Department of Chemical Engineering and Materials Science, Yuan Ze University, Taoyuan 32003, Taiwan;
- Correspondence: (P.-C.Y.); (C.-T.H.)
| | - Yu-Xuan Ting
- Department of Chemical Engineering and Materials Science, Yuan Ze University, Taoyuan 32003, Taiwan;
| | - Siyong Gu
- Fujian Provincial Key Laboratory of Functional Materials and Applications, School of Materials Science and Engineering, Xiamen University of Technology, Xiamen 361024, China;
| | - Yasser Ashraf Gandomi
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02142, USA;
| | - Jianlin Li
- Oak Ridge National Laboratory, Electrification and Energy Infrastructure Division, Oak Ridge, TN 37831, USA;
| | - Chien-Te Hsieh
- Department of Chemical Engineering and Materials Science, Yuan Ze University, Taoyuan 32003, Taiwan;
- Correspondence: (P.-C.Y.); (C.-T.H.)
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23
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Yan Y, Manickam S, Lester E, Wu T, Pang CH. Synthesis of graphene oxide and graphene quantum dots from miscanthus via ultrasound-assisted mechano-chemical cracking method. ULTRASONICS SONOCHEMISTRY 2021; 73:105519. [PMID: 33799111 PMCID: PMC8044699 DOI: 10.1016/j.ultsonch.2021.105519] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/16/2020] [Revised: 02/28/2021] [Accepted: 03/05/2021] [Indexed: 05/20/2023]
Abstract
Whilst graphene materials have become increasingly popular in recent years, the followed synthesis strategies face sustainability, environmental and quality challenges. This study proposes an effective, sustainable and scalable ultrasound-assisted mechano-chemical cracking method to produce graphene oxide (GO). A typical energy crop, miscanthus, was used as a carbon precursor and pyrolysed at 1200 °C before subjecting to edge-carboxylation via ball-milling in a CO2-induced environment. The resultant functionalised biochar was ultrasonically exfoliated in N-Methyl-2-pyrrolidone (NMP) and water to form GOs. The intermediate and end-products were characterised via X-ray diffraction (XRD), Raman, high-resolution transmission electron microscopy (HR-TEM) and atomic force microscopy (AFM) analyses. Results show that the proposed synthesis route can produce good quality and uniform GOs (8-10% monolayer), with up to 96% of GOs having three layers or lesser when NMP is used. Ultrasonication proved to be effective in propagating the self-repulsion of negatively-charged functional groups. Moreover, small amounts of graphene quantum dots were observed, illustrating the potential of producing various graphene materials via a single-step method. Whilst this study has only investigated utilising miscanthus, the current findings are promising and could expand the potential of producing good quality graphene materials from renewable sources via green synthesis routes.
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Affiliation(s)
- Yuxin Yan
- Department of Chemical and Environmental Engineering, University of Nottingham Ningbo China, Ningbo 315100, PR China; New Materials Institute, University of Nottingham Ningbo China, Ningbo 315042, PR China
| | - Sivakumar Manickam
- Petroleum and Chemical Engineering, Faculty of Engineering, Universiti Teknologi Brunei, Bandar Seri Begawan BE1410, Brunei Darussalam
| | - Edward Lester
- Department of Chemical and Environmental Engineering, University of Nottingham, Nottingham NG7 2RD, UK
| | - Tao Wu
- New Materials Institute, University of Nottingham Ningbo China, Ningbo 315042, PR China; Key Laboratory for Carbonaceous Wastes Processing and Process Intensification Research of Zhejiang Province, University of Nottingham Ningbo China, Ningbo 315100, PR China
| | - Cheng Heng Pang
- Department of Chemical and Environmental Engineering, University of Nottingham Ningbo China, Ningbo 315100, PR China; Municipal Key Laboratory of Clean Energy Conversion Technologies, University of Nottingham Ningbo China, Ningbo 315100, PR China.
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24
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Yang PC, Ting YX, Gu S, Ashraf Gandomi Y, Hsieh CT. Fluorescent nitrogen-doped carbon nanodots synthesized through a hydrothermal method with different isomers. J Taiwan Inst Chem Eng 2021. [DOI: 10.1016/j.jtice.2021.05.017] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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25
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Nancy P, Jose J, Joy N, Valluvadasan S, Philip R, Antoine R, Thomas S, Kalarikkal N. Fabrication of Silver-Decorated Graphene Oxide Nanohybrids via Pulsed Laser Ablation with Excellent Antimicrobial and Optical Limiting Performance. NANOMATERIALS 2021; 11:nano11040880. [PMID: 33808385 PMCID: PMC8065497 DOI: 10.3390/nano11040880] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/10/2021] [Revised: 03/22/2021] [Accepted: 03/23/2021] [Indexed: 02/06/2023]
Abstract
The demand for metallic nanoparticle ornamented nanohybrid materials of graphene oxide (GO) finds copious recognition by virtue of its advanced high-tech applications. Far apart from the long-established synthesis protocols, a novel laser-induced generation of silver nanoparticles (Ag NPs) that are anchored onto the GO layers by a single-step green method named pulsed laser ablation has been exemplified in this work. The second and third harmonic wavelengths (532 nm and 355 nm) of an Nd:YAG pulsed laser is used for the production of Ag NPs from a bulk solid silver target ablated in an aqueous solution of GO to fabricate colloidal Ag-GO nanohybrid materials. UV-Vis absorption spectroscopy, Raman spectroscopy, and TEM validate the optical, structural, and morphological features of the hybrid nanomaterials. The results revealed that the laser-assisted in-situ deposition of Ag NPs on the few-layered GO surface improved its antibacterial properties, in which the hybrid nanostructure synthesized at a longer wavelength exhibited higher antibacterial action resistance to Escherichia coli (E. coli) than Staphylococcus aureus (S. aureus) bacteria. Moreover, nonlinear optical absorption (NLA) of Ag-GO nanohybrid was measured using the open aperture Z-scan technique. The Z-scan results signify the NLA properties of the Ag-GO hybrid material and have a large decline in transmittance of more than 60%, which can be employed as a promising optical limiting (OL) material.
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Affiliation(s)
- Parvathy Nancy
- School of Pure and Applied Physics, Mahatma Gandhi University, Kottayam 686560, India;
| | - Jiya Jose
- International and Inter University Centre for Nanoscience and Nanotechnology, Mahatma Gandhi University, Kottayam 686560, India; (J.J.); (S.T.)
| | - Nithin Joy
- Light & Matter Physics Group, Raman Research Institute, Bengaluru 560080, India; (N.J.); (R.P.)
| | - Sivakumaran Valluvadasan
- Accelerator Division, Institute of Plasma Research, Near Indira Bridge, Gandhinagar District, Bhat, Gujarat 382428, India;
| | - Reji Philip
- Light & Matter Physics Group, Raman Research Institute, Bengaluru 560080, India; (N.J.); (R.P.)
| | - Rodolphe Antoine
- CNRS Institut Lumière, Matière Université Claude Bernard, Univ Lyon, Lyon 1, F-69622 Lyon, France
- Correspondence: (R.A.); (N.K.)
| | - Sabu Thomas
- International and Inter University Centre for Nanoscience and Nanotechnology, Mahatma Gandhi University, Kottayam 686560, India; (J.J.); (S.T.)
- School of Chemical Sciences, Mahatma Gandhi University, Kottayam 686560, India
| | - Nandakumar Kalarikkal
- School of Pure and Applied Physics, Mahatma Gandhi University, Kottayam 686560, India;
- International and Inter University Centre for Nanoscience and Nanotechnology, Mahatma Gandhi University, Kottayam 686560, India; (J.J.); (S.T.)
- Correspondence: (R.A.); (N.K.)
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Jalili M, Ghanbari H, Malekfar R, Mousavi Masouleh SS. Core-Double-Shell Fe 2O 3@SiO 2@Jarosite Hybrid Nanoparticles Synthesized by Laser Ablation of Turquoise in Ethanol. ACS OMEGA 2020; 5:3563-3570. [PMID: 32118171 PMCID: PMC7045545 DOI: 10.1021/acsomega.9b03882] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/14/2019] [Accepted: 02/03/2020] [Indexed: 06/10/2023]
Abstract
This work highlights a facile green route for the one-step synthesis of iron oxide core-double-shell nanoparticles (NPs) and aluminum phosphide (AlP) nanosheets by pulsed laser ablation of the mineral turquoise target from Nishapur in the presence of an ethanol solvent. High-resolution transmission electron microscopy, selected-area electron diffraction pattern, and field emission scanning electron microscopy (FESEM) in combination with energy-dispersive X-ray mapping revealed the formation of NPs with a typical core@double-shell structure in which crystalline α-Fe2O3 (iron oxide) formed the core, while SiO2 (quartz) and (K, H3O)Fe3(SO4)2(OH6) (jarosite) participated as the inner and outer shell, respectively. However, the application of laser ablation on the turquoise phase of the target led to the formation of AlP nanosheets which was confirmed by the X-ray diffraction patterns and FESEM images. Strong absorption of the vein-ablated species in the UV region (250-360 nm) was the characteristic feature of α-Fe2O3 and jarosite phases, while the absorption band at 250-300 nm for the turquoise-ablated species was related to the presence of Cu compound species and also the α-Fe2O3 phase in the sample. Photoluminescence emission spectra for the vein-ablated species depicted a peak centered at 370 nm, while a peak located at 364 nm was ascribed to the turquoise-ablated species. In particular, these hybrid NPs with high purity and stability may offer new opportunities for bio-applications such as anticancer agents and water/wastewater applications.
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Affiliation(s)
- Mansoureh Jalili
- Atomic
and Molecular Physics Group, Department of Physics, Faculty of Basic
Sciences, Tarbiat Modares University, P.O. Box 14115-175, Tehran 14117-13116, Iran
| | - Hajar Ghanbari
- School
of Metallurgy and Materials Engineering, Iran University of Science and Technology (IUST), P.O. Box 163-16765, Tehran 16846-13114, Iran
| | - Rasoul Malekfar
- Atomic
and Molecular Physics Group, Department of Physics, Faculty of Basic
Sciences, Tarbiat Modares University, P.O. Box 14115-175, Tehran 14117-13116, Iran
| | - Seyed Shayan Mousavi Masouleh
- Department
of Materials Science and Engineering, McMaster
University, 1280 Main Street W, Hamilton, Ontario L8S 4L7, Canada
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27
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González-Rubio G, Milagres de Oliveira T, Albrecht W, Díaz-Núñez P, Castro-Palacio JC, Prada A, González RI, Scarabelli L, Bañares L, Rivera A, Liz-Marzán LM, Peña-Rodríguez O, Bals S, Guerrero-Martínez A. Formation of Hollow Gold Nanocrystals by Nanosecond Laser Irradiation. J Phys Chem Lett 2020; 11:670-677. [PMID: 31905285 DOI: 10.1021/acs.jpclett.9b03574] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
The irradiation of spherical gold nanoparticles (AuNPs) with nanosecond laser pulses induces shape transformations yielding nanocrystals with an inner cavity. The concentration of the stabilizing surfactant, the use of moderate pulse fluences, and the size of the irradiated AuNPs determine the efficiency of the process and the nature of the void. Hollow nanocrystals are obtained when molecules from the surrounding medium (e.g., water and organic matter derived from the surfactant) are trapped during laser pulse irradiation. These experimental observations suggest the existence of a subtle balance between the heating and cooling processes experienced by the nanocrystals, which induce their expansion and subsequent recrystallization keeping exogenous matter inside. The described approach provides valuable insight into the mechanism of interaction of a pulsed nanosecond laser with AuNPs, along with interesting prospects for the development of hollow plasmonic nanoparticles with potential applications related to gas and liquid storage at the nanoscale.
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Affiliation(s)
- Guillermo González-Rubio
- CIC biomaGUNE and CIBER-BBN , Paseo de Miramón 182 , 20014 Donostia-San Sebastián , Spain
- Departamento de Química Física , Universidad Complutense de Madrid , Avenida Complutense s/n , 28040 Madrid , Spain
| | | | - Wiebke Albrecht
- EMAT , University of Antwerp , Groenenborgerlaan 171 , B-2020 Antwerp , Belgium
| | - Pablo Díaz-Núñez
- Instituto de Fusión Nuclear "Guillermo Velarde" , Universidad Politécnica de Madrid , José Gutiérrez Abascal 2 , E-28006 Madrid , Spain
| | - Juan Carlos Castro-Palacio
- Instituto de Fusión Nuclear "Guillermo Velarde" , Universidad Politécnica de Madrid , José Gutiérrez Abascal 2 , E-28006 Madrid , Spain
| | - Alejandro Prada
- Departamento de Computación e Ingenierías, Facultad de Ciencias de la Ingeniería , Universidad Católica del Maule , 3480112 Maule , Chile
- Centro de Nanotecnología Aplicada, Facultad de Ciencias , Universidad Mayor , 8580745 Santiago , Chile
| | - Rafael I González
- Centro de Nanotecnología Aplicada, Facultad de Ciencias , Universidad Mayor , 8580745 Santiago , Chile
- Center for the Development of Nanoscience and Nanotechnology (CEDENNA) , Universidad de Santiago de Chile , 9170022 Santiago , Chile
| | - Leonardo Scarabelli
- CIC biomaGUNE and CIBER-BBN , Paseo de Miramón 182 , 20014 Donostia-San Sebastián , Spain
| | - Luis Bañares
- Departamento de Química Física , Universidad Complutense de Madrid , Avenida Complutense s/n , 28040 Madrid , Spain
- Instituto Madrileño de Estudios Avanzados en Nanociencia (IMDEA Nanoscience) , Cantoblanco , 28049 Madrid , Spain
| | - Antonio Rivera
- Instituto de Fusión Nuclear "Guillermo Velarde" , Universidad Politécnica de Madrid , José Gutiérrez Abascal 2 , E-28006 Madrid , Spain
- Departamento de Ingeniería Energética, ETSII Industriales , Universidad Politécnica de Madrid , José Gutiérrez Abascal 2 , E-28006 Madrid , Spain
| | - Luis M Liz-Marzán
- CIC biomaGUNE and CIBER-BBN , Paseo de Miramón 182 , 20014 Donostia-San Sebastián , Spain
- Ikerbasque (Basque Foundation for Science) , 48013 Bilbao , Spain
| | - Ovidio Peña-Rodríguez
- Instituto de Fusión Nuclear "Guillermo Velarde" , Universidad Politécnica de Madrid , José Gutiérrez Abascal 2 , E-28006 Madrid , Spain
- Departamento de Ingeniería Energética, ETSII Industriales , Universidad Politécnica de Madrid , José Gutiérrez Abascal 2 , E-28006 Madrid , Spain
| | - Sara Bals
- EMAT , University of Antwerp , Groenenborgerlaan 171 , B-2020 Antwerp , Belgium
| | - Andrés Guerrero-Martínez
- Departamento de Química Física , Universidad Complutense de Madrid , Avenida Complutense s/n , 28040 Madrid , Spain
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28
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Gong W, Yuan Q, Chen C, Lv Y, Lin Y, Liang C, Wang G, Zhang H, Zhao H. Liberating N-CNTs Confined Highly Dispersed CoN x Sites for Selective Hydrogenation of Quinolines. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2019; 31:e1906051. [PMID: 31621962 DOI: 10.1002/adma.201906051] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/16/2019] [Revised: 10/02/2019] [Indexed: 05/11/2023]
Abstract
Selective hydrogenation of quinoline and its derivatives is an important means to produce corresponding 1,2,3,4-tetrahydroquinolines for a wide spectrum of applications. A facile and efficient "laser irradiation in liquid" technique to liberate the inaccessible highly dispersed CoNx active sites confined inside N-doped carbon nanotubes is demonstrated. The liberated CoNx sites possess generic catalytic activities toward selective hydrogenation of quinoline and its hydroxyl, methyl, and halogen substituted derivatives into corresponding 1,2,3,4-tetrahydroquinolines with almost 100% conversion efficiency and selectivity. This laser irradiation treatment approach should be widely applicable to unlock the catalytic powers of inaccessible catalytic active sites confined by other materials.
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Affiliation(s)
- Wanbing Gong
- Key Laboratory of Materials Physics, Centre for Environmental and Energy Nanomaterials, Anhui Key Laboratory of Nanomaterials and Nanotechnology, CAS Center for Excellence in Nanoscience, Institute of Solid State Physics, Chinese Academy of Sciences, Hefei, 230031, P. R. China
| | - Qinglin Yuan
- Key Laboratory of Materials Physics, Centre for Environmental and Energy Nanomaterials, Anhui Key Laboratory of Nanomaterials and Nanotechnology, CAS Center for Excellence in Nanoscience, Institute of Solid State Physics, Chinese Academy of Sciences, Hefei, 230031, P. R. China
| | - Chun Chen
- Key Laboratory of Materials Physics, Centre for Environmental and Energy Nanomaterials, Anhui Key Laboratory of Nanomaterials and Nanotechnology, CAS Center for Excellence in Nanoscience, Institute of Solid State Physics, Chinese Academy of Sciences, Hefei, 230031, P. R. China
| | - Yang Lv
- Key Laboratory of Materials Physics, Centre for Environmental and Energy Nanomaterials, Anhui Key Laboratory of Nanomaterials and Nanotechnology, CAS Center for Excellence in Nanoscience, Institute of Solid State Physics, Chinese Academy of Sciences, Hefei, 230031, P. R. China
| | - Yue Lin
- Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, 230026, P. R. China
| | - Changhao Liang
- Key Laboratory of Materials Physics, Centre for Environmental and Energy Nanomaterials, Anhui Key Laboratory of Nanomaterials and Nanotechnology, CAS Center for Excellence in Nanoscience, Institute of Solid State Physics, Chinese Academy of Sciences, Hefei, 230031, P. R. China
| | - Guozhong Wang
- Key Laboratory of Materials Physics, Centre for Environmental and Energy Nanomaterials, Anhui Key Laboratory of Nanomaterials and Nanotechnology, CAS Center for Excellence in Nanoscience, Institute of Solid State Physics, Chinese Academy of Sciences, Hefei, 230031, P. R. China
| | - Haimin Zhang
- Key Laboratory of Materials Physics, Centre for Environmental and Energy Nanomaterials, Anhui Key Laboratory of Nanomaterials and Nanotechnology, CAS Center for Excellence in Nanoscience, Institute of Solid State Physics, Chinese Academy of Sciences, Hefei, 230031, P. R. China
| | - Huijun Zhao
- Key Laboratory of Materials Physics, Centre for Environmental and Energy Nanomaterials, Anhui Key Laboratory of Nanomaterials and Nanotechnology, CAS Center for Excellence in Nanoscience, Institute of Solid State Physics, Chinese Academy of Sciences, Hefei, 230031, P. R. China
- Centre for Clean Environment and Energy, Griffith University, Gold Coast Campus, Queensland, Southport, 4222, Australia
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29
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Mallick BC, Hsieh CT, Yin KM, Li J, Ashraf Gandomi Y. Linear control of the oxidation level on graphene oxide sheets using the cyclic atomic layer reduction technique. NANOSCALE 2019; 11:7833-7838. [PMID: 30964134 DOI: 10.1039/c8nr10118c] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Precise control of the oxidation level on graphene oxide (GO) sheets is still a big challenge. This work demonstrates a linear control of the surface oxidation level on GO sheets via an atomic layer reduction (ALR) technique at 100 and 150 °C. The oxygen stripping rate during ALR cycling was assessed at different operating temperatures: 0.055% per cycle (150 °C) and 0.028% per cycle (100 °C). It was shown that the optical band gap and the electrical conductivity can be linearly tuned by the ALR cycle number for graphene-like materials. This unique capability was not feasible when employing conventional synthesis routes (e.g. thermal or chemical reduction) since these techniques only provide a stepwise control over the oxidation/reduction processes. The in situ oxidation level on GO materials can be accurately controlled through the ALR/atomic layer oxidation (ALO) cycle. Accordingly, the ALR/ALO cycle offers excellent reversibility for adjusting the chemical composition of graphene-like materials and tuning the optical and electronic properties of such nanomaterials.
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Affiliation(s)
- Bikash Chandra Mallick
- Department of Chemical Engineering and Materials Science, Yuan Ze University, Taoyuan 32003, Taiwan.
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30
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Ren X, Zhang F, Guo B, Gao N, Zhang X. Synthesis of N-Doped Micropore Carbon Quantum Dots with High Quantum Yield and Dual-Wavelength Photoluminescence Emission from Biomass for Cellular Imaging. NANOMATERIALS (BASEL, SWITZERLAND) 2019; 9:E495. [PMID: 30939724 PMCID: PMC6523831 DOI: 10.3390/nano9040495] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/09/2019] [Revised: 03/15/2019] [Accepted: 03/18/2019] [Indexed: 02/02/2023]
Abstract
Pursuit of a simple, fast, and cost-effective method to prepare highly and dual-wavelength fluorescent carbon quantum dots (CQDs) is a persistent objective in recent years. Here, we fabricated N-doped micropore carbon quantum dots (NM-CQDs) with a high quantum yield and dual-wavelength photoluminescence (PL) emission from sustainable biomass using a pulsed laser ablation method. Interestingly, two coexisting indigo⁻blue photoluminescence (PL) emissions were clearly observed, elucidating that the excited electrons transited from the intrinsic π* orbital to the surface state (SS) formed from the saturation passivation. The quantum yield (QY) and fluorescence lifetime (FL) of the obtained NM-CQDs were as high as 32.4% and 6.56 ns. Further investigations indicated that the emission behaviors of NM-CQDs were still stable and independent in various conditions such as various excitation wavelengths, salt ionic concentrations, pH values, irradiation times, and temperatures. The obtained NM-CQDs are very suitable for cellular staining images due to strong and stable PL emission and show good internalization in different cells. Therefore, we propose a new and cost-effective preparation strategy for highly fluorescent NM-CQDs with great potential in biomedical imaging and engineering.
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Affiliation(s)
- Xin Ren
- School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, China.
| | - Fang Zhang
- Analytical and Testing Center, Beijing Institute of Technology, Beijing 100081, China.
| | - Bingpeng Guo
- School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, China.
| | - Na Gao
- School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, China.
| | - Xiaoling Zhang
- School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, China.
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31
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Entacapone detection by a GOQDs-molecularly imprinted silica fluorescent chemical nanosensor. Anal Bioanal Chem 2019; 411:1075-1084. [DOI: 10.1007/s00216-018-1534-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2018] [Revised: 11/08/2018] [Accepted: 12/03/2018] [Indexed: 10/27/2022]
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32
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Li J, Tang K, Yu J, Wang H, Tu M, Wang X. Nitrogen and chlorine co-doped carbon dots as probe for sensing and imaging in biological samples. ROYAL SOCIETY OPEN SCIENCE 2019; 6:181557. [PMID: 30800391 PMCID: PMC6366224 DOI: 10.1098/rsos.181557] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/27/2018] [Accepted: 11/27/2018] [Indexed: 05/20/2023]
Abstract
A facile one-step hydrothermal synthesis approach was proposed to prepare nitrogen and chlorine co-doped carbon dots (CDs) using l-ornithine hydrochloride as the sole precursor. The configuration and component of CDs were characterized by transmission electron microscopy and X-ray photoelectron and Fourier transform infrared spectroscopies. The obtained CDs (Orn-CDs) with a mean diameter of 2.1 nm were well monodispersed in aqueous solutions. The as-prepared CDs exhibited a bright blue fluorescence with a high yield of 60%, good photostability and low cytotoxicity. The emission of Orn-CDs could be selectively and effectively suppressed by Fe3+. Thus, a quantitative assay of Fe3+ was realized by this nanoprobe with a detection limit of 95.6 nmol l-1 in the range of 0.3-50 µmol l-1. Furthermore, ascorbic acid could recover the fluorescence of Orn-CDs suppressed by Fe3+, owing to the transformation of Fe3+ to Fe2+ by ascorbic acid. The limit of detection for ascorbic acid was 137 nmol l-1 in the range of 0.5-10 µmol l-1. In addition, the established method was successfully applied for Fe3+ and ascorbic acid sensing in human serum and urine specimens and for imaging of Fe3+ in living cells. Orn-CD-based sensing platform showed its potential to be used for biomedicine-related study because it is cost-effective, easily scalable and can be used without additional functionalization and sample pre-treatment.
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Affiliation(s)
- Jin Li
- Department of Reproductive Medicine, Suizhou Hospital, Hubei University of Medicine, 60 Longmen Street, Suizhou 441300, People's Republic of China
| | - Kai Tang
- Center for Translational Medicine, Suizhou Hospital, Hubei University of Medicine, 8 East Culture Park Road, Suizhou 441300, People's Republic of China
| | - Jianxin Yu
- Center for Translational Medicine, Suizhou Hospital, Hubei University of Medicine, 8 East Culture Park Road, Suizhou 441300, People's Republic of China
| | - Hanqin Wang
- Center for Translational Medicine, Suizhou Hospital, Hubei University of Medicine, 8 East Culture Park Road, Suizhou 441300, People's Republic of China
| | - Mingli Tu
- Center for Translational Medicine, Suizhou Hospital, Hubei University of Medicine, 8 East Culture Park Road, Suizhou 441300, People's Republic of China
| | - Xiaobo Wang
- Department of Reproductive Medicine, Suizhou Hospital, Hubei University of Medicine, 60 Longmen Street, Suizhou 441300, People's Republic of China
- Center for Translational Medicine, Suizhou Hospital, Hubei University of Medicine, 8 East Culture Park Road, Suizhou 441300, People's Republic of China
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33
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Kang S, Jeong YK, Jung KH, Son Y, Choi SC, An GS, Han H, Kim KM. Simple preparation of graphene quantum dots with controllable surface states from graphite. RSC Adv 2019; 9:38447-38453. [PMID: 35540206 PMCID: PMC9075865 DOI: 10.1039/c9ra07555k] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2019] [Accepted: 11/18/2019] [Indexed: 11/21/2022] Open
Abstract
Graphite is economic and earth-abundant carbon precursor for preparing graphene quantum dots (GQDs). Here, we report a facile and green approach to produce GQDs from graphite flakes via a pulsed laser ablation (PLA) method assisted by high-power sonication. A homogeneous dispersion of graphite flakes, caused by high-power sonication during PLA, leads to the formation of GQDs following a laser fragmentation in liquid (LFL) rather than laser ablation in liquid (LAL) mechanism. The final product of GQDs exhibits the distinct structural, chemical, and optical properties of pristine graphene itself. However, graphene oxide quantum dots (GOQDs) with abundant surface oxygen-rich functional groups are readily formed from graphite flakes when high-power sonication is not employed during the PLA process. GQDs and GOQDs show a significantly different luminescence nature. Hence, selective production of either functional GQDs or GOQDs can be achieved by simply turning the high-power sonication during the PLA process on and off. We believe that our modified PLA process proposed in this work will further open up facile and simple routes for designing functional carbon materials. The proposed technique enables selectively producing graphene quantum dots (on-GQDs) and graphene oxide quantum dots (off-GOQDs) by depending on the applying sonication during the pulsed laser ablation process.![]()
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Affiliation(s)
- Sukhyun Kang
- Korea Institute of Industrial Technology
- Republic of Korea
| | | | | | - Yong Son
- Korea Institute of Industrial Technology
- Siheung-si
- Republic of Korea
| | - Sung-Churl Choi
- Division of Materials Science and Engineering
- Hanyang University
- Seongdong-gu
- Republic of Korea
| | - Gae Seok An
- Division of Materials Science and Engineering
- Hanyang University
- Seongdong-gu
- Republic of Korea
| | - Hyuksu Han
- Department of Materials Science and Engineering
- Hongik University
- Sejong
- Republic of Korea
| | - Kang Min Kim
- Korea Institute of Industrial Technology
- Republic of Korea
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34
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Carbon dots intensified poly (ethylene glycol)/chitosan/sodium glycerophosphate hydrogel as artificial synovium tissue with slow-release lubricant. J Mech Behav Biomed Mater 2018; 88:261-269. [PMID: 30195117 DOI: 10.1016/j.jmbbm.2018.08.024] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2018] [Revised: 08/18/2018] [Accepted: 08/19/2018] [Indexed: 12/19/2022]
Abstract
The ultra-high molecular weight polyethylene (UHMWPE) and metal artificial joint pair is limited by wear debris and short service life. Here we report the development of a hydrogel which exhibits lubricant release to intensify the lubrication effect of artificial joints.This study adopted an injectable method to prepare carbon dots/poly (ethylene glycol)/chitosan/sodium glycerophosphate (CDs/PEG/CS/GP) composite hydrogel, and the carbon dots were used to intensify the rheological and mechanical properties. In addition, the composite hydrogel had slow-release properties, and the release solution contained CDs, PEG and GP has excellent lubrication effect. At last, the MTT assay, LIVE/DEAD staining, H&E staining results and safety evaluation in BALC/c mice proved that the hydrogels had good biocompatibilility and were safety for application in vivo.
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35
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Ren X, Zhang F, Zhang X. Synthesis of Black Phosphorus Quantum Dots with High Quantum Yield by Pulsed Laser Ablation for Cell Bioimaging. Chem Asian J 2018; 13:1842-1846. [PMID: 29770604 DOI: 10.1002/asia.201800482] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2018] [Revised: 04/29/2018] [Indexed: 11/09/2022]
Abstract
Black phosphorus quantum dots (BPQDs), with an average diameter of about 6 nm and a height of about 1.1 nm, are successfully synthesized by means of a pulsed laser ablation (PLA) method in isopropyl ether (IPE) solvent. The photoluminescence PL quantum yield of the as-prepared sample is as high as 20.7 %, which is 3 times that of BPQDs prepared by means of probe ultrasonic exfoliation (approximately 7.2 %). The stable and blue-violet PL emission of the BPQDs is observed. It can be elucidated that electrons transit from the LUMO energy level to the HOMO energy level, as well as energy levels below the HOMO (H1 and H2). In addition, BPQDs are also utilized in bioimaging in HeLa cells, showing an intense and stable PL signal and excellent biocompatibility. Hence, this work indicates that the obtained BPQDs with high quantum yield and stable PL emission have great potential for biomedical applications, including biolabeling, bioimaging, and drug delivery.
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Affiliation(s)
- Xin Ren
- School of Chemistry and Chemical Engineering, Analytical and Testing Center, Beijing Institute of Technology, Beijing, 100081, P.R. China
| | - Fang Zhang
- School of Chemistry and Chemical Engineering, Analytical and Testing Center, Beijing Institute of Technology, Beijing, 100081, P.R. China
| | - Xiaoling Zhang
- School of Chemistry and Chemical Engineering, Analytical and Testing Center, Beijing Institute of Technology, Beijing, 100081, P.R. China
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36
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Calabro RL, Yang DS, Kim DY. Liquid-phase laser ablation synthesis of graphene quantum dots from carbon nano-onions: Comparison with chemical oxidation. J Colloid Interface Sci 2018; 527:132-140. [PMID: 29787949 DOI: 10.1016/j.jcis.2018.04.113] [Citation(s) in RCA: 59] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2018] [Revised: 04/11/2018] [Accepted: 04/28/2018] [Indexed: 10/16/2022]
Abstract
Graphene quantum dots (GQDs) have been synthesized reproducibly by chemical oxidation (CO) of carbon nano-onions (nCNOs) and a one-step pulsed laser ablation (LA) of nCNOs in deionized water. The photoluminescence (PL) spectra show that the LA-GQDs have blue shifted emission relative to the CO-GQDs which is attributed to the effects of both particle sizes and surface functional groups. The CO-GQDs have an average diameter of 4.1(8) nm and a thickness corresponding to two or three graphene layers, while the LA-GQDs have an average diameter of 1.8(6) nm and a thickness comparable to a single layer of graphene. The CO-GQDs favor the presence of carboxylic groups and have a higher fraction of sp2 carbons, while the LA-GQDs prefer the presence of hydroxyl groups and have a higher fraction of sp3 carbons. PL lifetime data suggests that surface functional groups are the main source of radiative deactivation and the sp2 carbon domains are mainly responsible for non-radiative decay. PL lifetimes are measured to be 7.9(6) ns for the emission from the carboxylic groups and 3.18(10) ns from the hydroxyl groups. Compared to CO, liquid-phase LA is a faster and cleaner one-step method for producing GQDs with fewer starting chemicals and byproducts.
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Affiliation(s)
- Rosemary L Calabro
- Department of Chemistry, University of Kentucky, Lexington, KY 40506-0055, USA
| | - Dong-Sheng Yang
- Department of Chemistry, University of Kentucky, Lexington, KY 40506-0055, USA.
| | - Doo Young Kim
- Department of Chemistry, University of Kentucky, Lexington, KY 40506-0055, USA.
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37
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Mbambo MC, Khamlich S, Khamliche T, Mothudi BM, Maaza M. Pulsed Nd:YAG laser assisted fabrication of graphene nanosheets in water. ACTA ACUST UNITED AC 2018. [DOI: 10.1557/adv.2018.275] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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38
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Shen D, Zou G, Liu L, Zhao W, Wu A, Duley WW, Zhou YN. Scalable High-Performance Ultraminiature Graphene Micro-Supercapacitors by a Hybrid Technique Combining Direct Writing and Controllable Microdroplet Transfer. ACS APPLIED MATERIALS & INTERFACES 2018; 10:5404-5412. [PMID: 29357228 DOI: 10.1021/acsami.7b14410] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Miniaturization of energy storage devices can significantly decrease the overall size of electronic systems. However, this miniaturization is limited by the reduction of electrode dimensions and the reproducible transfer of small electrolyte drops. This paper reports first a simple scalable direct writing method for the production of ultraminiature microsupercapacitor (MSC) electrodes, based on femtosecond laser reduced graphene oxide (fsrGO) interlaced pads. These pads, separated by 2 μm spacing, are 100 μm long and 8 μm wide. A second stage involves the accurate transfer of an electrolyte microdroplet on top of each individual electrode, which can avoid any interference of the electrolyte with other electronic components. Abundant in-plane mesopores in fsrGO induced by a fs laser together with ultrashort interelectrode spacing enables MSCs to exhibit a high specific capacitance (6.3 mF cm-2 and 105 F cm-3) and ∼100% retention after 1000 cycles. An all graphene resistor-capacitor (RC) filter is also constructed by combining the MSC and a fsrGO resistor, which is confirmed to exhibit highly enhanced performance characteristics. This new hybrid technique combining fs laser direct writing and precise microdroplet transfer easily enables scalable production of ultraminiature MSCs, which is believed to be significant for practical application of micro-supercapacitor microelectronic systems.
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Affiliation(s)
- Daozhi Shen
- Department of Mechanical Engineering, State Key Laboratory of Tribology, Tsinghua University , Beijing 100084, P. R. China
| | - Guisheng Zou
- Department of Mechanical Engineering, State Key Laboratory of Tribology, Tsinghua University , Beijing 100084, P. R. China
| | - Lei Liu
- Department of Mechanical Engineering, State Key Laboratory of Tribology, Tsinghua University , Beijing 100084, P. R. China
| | - Wenzheng Zhao
- Department of Mechanical Engineering, State Key Laboratory of Tribology, Tsinghua University , Beijing 100084, P. R. China
| | - Aiping Wu
- Department of Mechanical Engineering, State Key Laboratory of Tribology, Tsinghua University , Beijing 100084, P. R. China
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39
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Wavelength-tunable photoluminescence of ZnSe quantum dot micelles synthesized by femtosecond laser ablation in microfluidics. Chem Phys Lett 2017. [DOI: 10.1016/j.cplett.2017.05.053] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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40
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Kumar R, Singh RK, Singh DP, Joanni E, Yadav RM, Moshkalev SA. Laser-assisted synthesis, reduction and micro-patterning of graphene: Recent progress and applications. Coord Chem Rev 2017. [DOI: 10.1016/j.ccr.2017.03.021] [Citation(s) in RCA: 149] [Impact Index Per Article: 21.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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41
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Facile route for synthesis of mesoporous graphite encapsulated iron carbide/iron nanosheet composites and their electrocatalytic activity. J Colloid Interface Sci 2017; 491:55-63. [DOI: 10.1016/j.jcis.2016.11.086] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2016] [Revised: 11/22/2016] [Accepted: 11/24/2016] [Indexed: 11/20/2022]
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42
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Zhang D, Gökce B, Barcikowski S. Laser Synthesis and Processing of Colloids: Fundamentals and Applications. Chem Rev 2017; 117:3990-4103. [PMID: 28191931 DOI: 10.1021/acs.chemrev.6b00468] [Citation(s) in RCA: 382] [Impact Index Per Article: 54.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Driven by functionality and purity demand for applications of inorganic nanoparticle colloids in optics, biology, and energy, their surface chemistry has become a topic of intensive research interest. Consequently, ligand-free colloids are ideal reference materials for evaluating the effects of surface adsorbates from the initial state for application-oriented nanointegration purposes. After two decades of development, laser synthesis and processing of colloids (LSPC) has emerged as a convenient and scalable technique for the synthesis of ligand-free nanomaterials in sealed environments. In addition to the high-purity surface of LSPC-generated nanoparticles, other strengths of LSPC include its high throughput, convenience for preparing alloys or series of doped nanomaterials, and its continuous operation mode, suitable for downstream processing. Unscreened surface charge of LSPC-synthesized colloids is the key to achieving colloidal stability and high affinity to biomolecules as well as support materials, thereby enabling the fabrication of bioconjugates and heterogeneous catalysts. Accurate size control of LSPC-synthesized materials ranging from quantum dots to submicrometer spheres and recent upscaling advancement toward the multiple-gram scale are helpful for extending the applicability of LSPC-synthesized nanomaterials to various fields. By discussing key reports on both the fundamentals and the applications related to laser ablation, fragmentation, and melting in liquids, this Article presents a timely and critical review of this emerging topic.
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Affiliation(s)
- Dongshi Zhang
- Technical Chemistry I and Center for Nanointegration Duisburg-Essen (CENIDE), University of Duisburg-Essen , Universitaetsstrasse 7, 45141 Essen, Germany
| | - Bilal Gökce
- Technical Chemistry I and Center for Nanointegration Duisburg-Essen (CENIDE), University of Duisburg-Essen , Universitaetsstrasse 7, 45141 Essen, Germany
| | - Stephan Barcikowski
- Technical Chemistry I and Center for Nanointegration Duisburg-Essen (CENIDE), University of Duisburg-Essen , Universitaetsstrasse 7, 45141 Essen, Germany
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43
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Narasimhan AK, Lakshmi B S, Santra TS, Rao MSR, Krishnamurthi G. Oxygenated graphene quantum dots (GQDs) synthesized using laser ablation for long-term real-time tracking and imaging. RSC Adv 2017. [DOI: 10.1039/c7ra10702a] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
Synthesis of graphene quantom dots for single live cell imaging andin vivofluorescence imaging.
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Affiliation(s)
- Ashwin Kumar Narasimhan
- Department of Engineering Design
- IIT Madras
- Chennai
- India-600036
- Nanofunctional Materials Technology Centre (NFMTC)
| | | | | | - M. S. Ramachandra Rao
- Nanofunctional Materials Technology Centre (NFMTC)
- Material Science Research Centre
- Department of Physics
- IIT Madras
- Chennai
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44
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Lan C, Zhao J, Zhang L, Wen C, Huang Y, Zhao S. Self-assembled nanoporous graphene quantum dot-Mn3O4 nanocomposites for surface-enhanced Raman scattering based identification of cancer cells. RSC Adv 2017. [DOI: 10.1039/c7ra00997f] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A nanoporous graphene quantum dot-Mn3O4 nano-composite was synthesized, and used as a new platform for surface-enhanced Raman scattering-based identification of cancer cells.
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Affiliation(s)
- Chuanqing Lan
- State Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources
- Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection of Ministry Education
- Guangxi Normal University
- Guilin
- China
| | - Jingjin Zhao
- State Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources
- Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection of Ministry Education
- Guangxi Normal University
- Guilin
- China
| | - Liangliang Zhang
- State Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources
- Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection of Ministry Education
- Guangxi Normal University
- Guilin
- China
| | - Changchun Wen
- State Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources
- Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection of Ministry Education
- Guangxi Normal University
- Guilin
- China
| | - Yong Huang
- State Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources
- Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection of Ministry Education
- Guangxi Normal University
- Guilin
- China
| | - Shulin Zhao
- State Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources
- Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection of Ministry Education
- Guangxi Normal University
- Guilin
- China
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45
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Lu H, Ren S, Zhang P, Guo J, Li J, Dong G. Laser-textured surface storing a carbon dots/poly(ethylene glycol)/chitosan gel with slow-release lubrication effect. RSC Adv 2017. [DOI: 10.1039/c7ra02387a] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
Arthroplasty presents wear problems because body fluid, as the only lubricant, has poor performance.
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Affiliation(s)
- Hailin Lu
- Key Laboratory of Education Ministry for Modern Design and Rotor-Bearing System
- Xi'an Jiaotong University
- Xi'an 710049
- China
| | - Shanshan Ren
- Key Laboratory of Education Ministry for Modern Design and Rotor-Bearing System
- Xi'an Jiaotong University
- Xi'an 710049
- China
| | - Pengpeng Zhang
- Key Laboratory of Education Ministry for Modern Design and Rotor-Bearing System
- Xi'an Jiaotong University
- Xi'an 710049
- China
| | - Junde Guo
- Key Laboratory of Education Ministry for Modern Design and Rotor-Bearing System
- Xi'an Jiaotong University
- Xi'an 710049
- China
| | - Jianhui Li
- Department of Chemistry
- School of Science
- Xi'an Jiaotong University
- Xi'an 710049
- China
| | - Guangneng Dong
- Key Laboratory of Education Ministry for Modern Design and Rotor-Bearing System
- Xi'an Jiaotong University
- Xi'an 710049
- China
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46
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Wang H, Lau M, Sannomiya T, Gökce B, Barcikowski S, Odawara O, Wada H. Laser-induced growth of YVO4:Eu3+ nanoparticles from sequential flowing aqueous suspension. RSC Adv 2017. [DOI: 10.1039/c6ra28118d] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
Ligand-free lanthanide ion-doped oxide nanoparticles have critical biological applications.
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Affiliation(s)
- Haohao Wang
- Interdisciplinary Graduate School of Science and Engineering
- Tokyo Institute of Technology
- Yokohama 226-8502
- Japan
| | - Marcus Lau
- Institute of Technical Chemistry I
- Center for Nanointegration Duisburg-Essen (CENIDE)
- University of Duisburg-Essen
- 45141 Essen
- Germany
| | - Takumi Sannomiya
- School of Materials and Chemical Technology
- Tokyo Institute of Technology
- Yokohama 226-8502
- Japan
| | - Bilal Gökce
- Institute of Technical Chemistry I
- Center for Nanointegration Duisburg-Essen (CENIDE)
- University of Duisburg-Essen
- 45141 Essen
- Germany
| | - Stephan Barcikowski
- Institute of Technical Chemistry I
- Center for Nanointegration Duisburg-Essen (CENIDE)
- University of Duisburg-Essen
- 45141 Essen
- Germany
| | - Osamu Odawara
- School of Materials and Chemical Technology
- Tokyo Institute of Technology
- Yokohama 226-8502
- Japan
| | - Hiroyuki Wada
- School of Materials and Chemical Technology
- Tokyo Institute of Technology
- Yokohama 226-8502
- Japan
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47
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Iannazzo D, Ziccarelli I, Pistone A. Graphene quantum dots: multifunctional nanoplatforms for anticancer therapy. J Mater Chem B 2017; 5:6471-6489. [DOI: 10.1039/c7tb00747g] [Citation(s) in RCA: 86] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
We review the recent advances in the application of GQDs as innovative nanoplatforms for anticancer therapy and bioimaging.
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Affiliation(s)
- Daniela Iannazzo
- Dipartimento di Ingegneria
- University of Messina
- Contrada Di Dio
- Italy
| | - Ida Ziccarelli
- Dipartimento di Ingegneria
- University of Messina
- Contrada Di Dio
- Italy
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48
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Ultrafast Method for Selective Design of Graphene Quantum Dots with Highly Efficient Blue Emission. Sci Rep 2016; 6:38423. [PMID: 27929121 PMCID: PMC5144005 DOI: 10.1038/srep38423] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2016] [Accepted: 11/08/2016] [Indexed: 01/21/2023] Open
Abstract
Graphene quantum dots (GQDs) have attractive properties and potential applications. However, their various applications are limited by a current synthetic method which requires long processing time. Here, we report a facile and remarkably rapid method for production of GQDs exhibiting excellent optoelectronic properties. We employed the pulsed laser ablation (PLA) technique to exfoliate GQDs from multi-wall carbon nanotube (MWCNTs), which can be referred to as a pulsed laser exfoliation (PLE) process. Strikingly, it takes only 6 min to transform all MWCNTs precursors to GQDs by using PLE process. Furthermore, we could selectively produce either GQDs or graphene oxide quantum dots (GOQDs) by simply changing the organic solvents utilized in the PLE processing. The synthesized GQDs show distinct blue photoluminescence (PL) with excellent quantum yield (QY) up to 12% as well as sufficient brightness and resolution to be suitable for optoelectronic applications. We believe that the PLE process proposed in this work will further open up new routes for the preparation of different optoelectronic nanomaterials.
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49
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Chen J, Shu J, Chen J, Cao Z, Xiao A, Yan Z. Highly luminescent S,N co-doped carbon quantum dots-sensitized chemiluminescence on luminol-H2O2system for the determination of ranitidine. LUMINESCENCE 2016; 32:277-284. [DOI: 10.1002/bio.3173] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2016] [Revised: 05/14/2016] [Accepted: 05/19/2016] [Indexed: 11/11/2022]
Affiliation(s)
- Jianqiu Chen
- School of Science, China Pharmaceutical University; Nanjing China
| | - Juan Shu
- School of Science, China Pharmaceutical University; Nanjing China
| | - Jiao Chen
- School of Science, China Pharmaceutical University; Nanjing China
| | - Zhiran Cao
- School of Science, China Pharmaceutical University; Nanjing China
| | - An Xiao
- School of Science, China Pharmaceutical University; Nanjing China
| | - Zhengyu Yan
- School of Science, China Pharmaceutical University; Nanjing China
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50
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Russo P, Liang R, Jabari E, Marzbanrad E, Toyserkani E, Zhou YN. Single-step synthesis of graphene quantum dots by femtosecond laser ablation of graphene oxide dispersions. NANOSCALE 2016; 8:8863-77. [PMID: 27071944 DOI: 10.1039/c6nr01148a] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
In the last few years, graphene quantum dots (GQDs) have attracted the attention of many research groups for their outstanding properties, which include low toxicity, chemical stability and photoluminescence. One of the challenges of GQD synthesis is finding a single-step, cheap and sustainable approach for synthesizing these promising nanomaterials. In this study, we demonstrate that femtosecond laser ablation of graphene oxide (GO) dispersions could be employed as a facile and environmentally friendly synthesis method for GQDs. With the proper control of laser ablation parameters, such as ablation time and laser power, it is possible to produce GQDs with average sizes of 2-5 nm, emitting a blue luminescence at 410 nm. We tested the feasibility of the synthesized GQDs as materials for electronic devices by aerosol-jet printing of an ink that is a mixture of water dispersion of laser synthesized GQDs and silver nanoparticle dispersion, which resulted in lower resistivity of the final printed patterns. Preliminary results showed that femtosecond laser synthesized GQDs can be mixed with silver nanoparticle dispersion to fabricate a hybrid material, which can be employed in printing electronic devices by either printing patterns that are more conductive and/or reducing costs of the ink by decreasing the concentration of silver nanoparticles (AgNPs) in the ink.
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Affiliation(s)
- Paola Russo
- Waterloo Institute for Nanotechnology, University of Waterloo, 200 University Ave., West Waterloo, Ontario N2L 3G1, Canada. and Centre for Advanced Materials Joining, University of Waterloo, 200 University Ave., West Waterloo, Ontario N2L 3G1, Canada and Department of Mechanical and Mechatronics Engineering, University of Waterloo, 200 University Ave., West Waterloo, Ontario N2L 3G1, Canada
| | - Robert Liang
- Waterloo Institute for Nanotechnology, University of Waterloo, 200 University Ave., West Waterloo, Ontario N2L 3G1, Canada. and Centre for Advanced Materials Joining, University of Waterloo, 200 University Ave., West Waterloo, Ontario N2L 3G1, Canada and Department of Mechanical and Mechatronics Engineering, University of Waterloo, 200 University Ave., West Waterloo, Ontario N2L 3G1, Canada
| | - Elahe Jabari
- Department of Mechanical and Mechatronics Engineering, University of Waterloo, 200 University Ave., West Waterloo, Ontario N2L 3G1, Canada and Multi-scale Additive Manufacturing Laboratory, University of Waterloo, 200 University Ave., West Waterloo, Ontario N2L 3G1, Canada
| | - Ehsan Marzbanrad
- Waterloo Institute for Nanotechnology, University of Waterloo, 200 University Ave., West Waterloo, Ontario N2L 3G1, Canada. and Centre for Advanced Materials Joining, University of Waterloo, 200 University Ave., West Waterloo, Ontario N2L 3G1, Canada and Department of Mechanical and Mechatronics Engineering, University of Waterloo, 200 University Ave., West Waterloo, Ontario N2L 3G1, Canada
| | - Ehsan Toyserkani
- Department of Mechanical and Mechatronics Engineering, University of Waterloo, 200 University Ave., West Waterloo, Ontario N2L 3G1, Canada and Multi-scale Additive Manufacturing Laboratory, University of Waterloo, 200 University Ave., West Waterloo, Ontario N2L 3G1, Canada
| | - Y Norman Zhou
- Waterloo Institute for Nanotechnology, University of Waterloo, 200 University Ave., West Waterloo, Ontario N2L 3G1, Canada. and Centre for Advanced Materials Joining, University of Waterloo, 200 University Ave., West Waterloo, Ontario N2L 3G1, Canada and Department of Mechanical and Mechatronics Engineering, University of Waterloo, 200 University Ave., West Waterloo, Ontario N2L 3G1, Canada
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