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Zhang Y, Cheng L, Ji Y. A novel amorphous porous biochar for adsorption of antibiotics: Adsorption mechanism analysis via experiment coupled with theoretical calculations. Chem Eng Res Des 2022. [DOI: 10.1016/j.cherd.2022.07.049] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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González-González RB, González LT, Madou M, Leyva-Porras C, Martinez-Chapa SO, Mendoza A. Synthesis, Purification, and Characterization of Carbon Dots from Non-Activated and Activated Pyrolytic Carbon Black. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:298. [PMID: 35159643 PMCID: PMC8838732 DOI: 10.3390/nano12030298] [Citation(s) in RCA: 31] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Revised: 01/06/2022] [Accepted: 01/11/2022] [Indexed: 02/06/2023]
Abstract
In this work, carbon dots were created from activated and non-activated pyrolytic carbon black obtained from waste tires, which were then chemically oxidized with HNO3. The effects caused to the carbon dot properties were analyzed in detail through characterization techniques such as ion chromatography; UV-visible, Fourier-transform infrared spectroscopy (FTIR), X-ray photoelectron spectroscopy (XPS), and Raman spectroscopy; ζ potential; transmission electron microscopy (TEM); and spectrofluorometry. The presence of functional groups on the surface of all carbon dots was revealed by UV-visible, FTIR, XPS, and Raman spectra. The higher oxidation degrees of carbon dots from activated precursors compared to those from nonactivated precursors resulted in differences in photoluminescence (PL) properties such as bathochromic shift, lower intensity, and excitation-dependent behavior. The results demonstrate that the use of an activating agent in the recovery of pyrolytic carbon black resulted in carbon dots with different PL properties. In addition, a dialysis methodology is proposed to overcome purification obstacles, finding that 360 h were required to obtain pure carbon dots synthesized by a chemical oxidation method.
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Affiliation(s)
- Reyna Berenice González-González
- Escuela de Ingeniería y Ciencias, Tecnologico de Monterrey, Ave. Eugenio Garza Sada 2501, Monterrey 64849, Mexico; (R.B.G.-G.); (L.T.G.); (S.O.M.-C.)
| | - Lucy Teresa González
- Escuela de Ingeniería y Ciencias, Tecnologico de Monterrey, Ave. Eugenio Garza Sada 2501, Monterrey 64849, Mexico; (R.B.G.-G.); (L.T.G.); (S.O.M.-C.)
| | - Marc Madou
- Department of Mechanical and Aerospace Engineering, University of California Irvine, Engineering Gateway 4200, Irvine, CA 92697, USA;
| | - César Leyva-Porras
- Laboratorio Nacional de Nanotecnología (Nanotech), Centro de Investigación en Materiales Avanzados (CIMAV), Miguel de Cervantes No. 120, Chihuahua 31136, Mexico;
| | - Sergio Omar Martinez-Chapa
- Escuela de Ingeniería y Ciencias, Tecnologico de Monterrey, Ave. Eugenio Garza Sada 2501, Monterrey 64849, Mexico; (R.B.G.-G.); (L.T.G.); (S.O.M.-C.)
| | - Alberto Mendoza
- Escuela de Ingeniería y Ciencias, Tecnologico de Monterrey, Ave. Eugenio Garza Sada 2501, Monterrey 64849, Mexico; (R.B.G.-G.); (L.T.G.); (S.O.M.-C.)
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Färkkilä SMA, Kiers ET, Jaaniso R, Mäeorg U, Leblanc RM, Treseder KK, Kang Z, Tedersoo L. Fluorescent nanoparticles as tools in ecology and physiology. Biol Rev Camb Philos Soc 2021; 96:2392-2424. [PMID: 34142416 DOI: 10.1111/brv.12758] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Revised: 05/26/2021] [Accepted: 05/27/2021] [Indexed: 12/21/2022]
Abstract
Fluorescent nanoparticles (FNPs) have been widely used in chemistry and medicine for decades, but their employment in biology is relatively recent. Past reviews on FNPs have focused on chemical, physical or medical uses, making the extrapolation to biological applications difficult. In biology, FNPs have largely been used for biosensing and molecular tracking. However, concerns over toxicity in early types of FNPs, such as cadmium-containing quantum dots (QDs), may have prevented wide adoption. Recent developments, especially in non-Cd-containing FNPs, have alleviated toxicity problems, facilitating the use of FNPs for addressing ecological, physiological and molecule-level processes in biological research. Standardised protocols from synthesis to application and interdisciplinary approaches are critical for establishing FNPs in the biologists' tool kit. Here, we present an introduction to FNPs, summarise their use in biological applications, and discuss technical issues such as data reliability and biocompatibility. We assess whether biological research can benefit from FNPs and suggest ways in which FNPs can be applied to answer questions in biology. We conclude that FNPs have a great potential for studying various biological processes, especially tracking, sensing and imaging in physiology and ecology.
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Affiliation(s)
- Sanni M A Färkkilä
- Institute of Ecology and Earth Sciences, University of Tartu, Ravila 14a, 50411, Tartu, Estonia
| | - E Toby Kiers
- Department of Ecological Science, Vrije Universiteit Amsterdam, De Boelelaan 1085, NL-1081 HV, Amsterdam, Noord-Holland, The Netherlands
| | - Raivo Jaaniso
- Institute of Physics, University of Tartu, W. Ostwaldi Str 1, 50411, Tartu, Tartumaa, Estonia
| | - Uno Mäeorg
- Institute of Chemistry, University of Tartu, Ravila 14a, 50411, Tartu, Estonia
| | - Roger M Leblanc
- Department of Chemistry, Cox Science Center, University of Miami, 1301 Memorial Drive, Coral Gables, FL, 33124, U.S.A
| | - Kathleen K Treseder
- Department of Ecology and Evolutionary Biology, School of Biological Sciences, University of California, Irvine, 3106 Biological Sciences III, Mail Code: 2525, 92697, Irvine, CA, U.S.A
| | - Zhenhui Kang
- Institute of Functional Nano and Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-based Functional Materials and Devices, Soochow University, Suzhou, 215123, China
| | - Leho Tedersoo
- Institute of Ecology and Earth Sciences, University of Tartu, Ravila 14a, 50411, Tartu, Estonia
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Aptamer-mediated N/Ce-doped carbon dots as a fluorescent and resonance Rayleigh scattering dual mode probe for arsenic(III). Mikrochim Acta 2019; 186:638. [DOI: 10.1007/s00604-019-3764-3] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2019] [Accepted: 08/14/2019] [Indexed: 10/26/2022]
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A novel gold nanosol SERS quantitative analysis method for trace Na+ based on carbon dot catalysis. Food Chem 2019; 289:531-536. [DOI: 10.1016/j.foodchem.2019.03.032] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2018] [Revised: 03/02/2019] [Accepted: 03/10/2019] [Indexed: 11/20/2022]
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Lu X, Liu C, Wang Z, Yang J, Xu M, Dong J, Wang P, Gu J, Cao F. Nitrogen-Doped Carbon Nanoparticles Derived from Silkworm Excrement as On⁻Off⁻On Fluorescent Sensors to Detect Fe(III) and Biothiols. NANOMATERIALS (BASEL, SWITZERLAND) 2018; 8:E443. [PMID: 29914212 PMCID: PMC6027355 DOI: 10.3390/nano8060443] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/28/2018] [Revised: 06/14/2018] [Accepted: 06/14/2018] [Indexed: 01/19/2023]
Abstract
On⁻off⁻on fluorescent sensors based on emerging carbon nanoparticles (CNPs) or carbon dots (CDs) have attracted extensive attention for their convenience and efficiency. In this study, dumped silkworm excrement was used as a novel precursor to prepare fluorescent nitrogen-doped CNPs (N-CNPs) through hydrothermal treatment. The obtained N-CNPs showed good photoluminescent properties and excellent water dispersibility. Thus, they were applied as fluorescence “on⁻off⁻on” probes for the detection of Fe(III) and biothiols. The “on⁻off” process was achieved by adding Fe(III) into N-CNP solution, which resulted in the selective fluorescence quenching, with the detection limit of 0.20 μM in the linear range of 1⁻500 μM. Following this, the introduction of biothiols could recover the fluorescence efficiently, in order to realize the “off⁻on” process. By using glutathione (GSH) as the representative, the linear range was in the range of 1⁻1000 μM, and the limit of detection was 0.13 μM. Moreover, this useful strategy was successfully applied for the determination of amounts of GSH in fetal calf serum samples.
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Affiliation(s)
- Xingchang Lu
- College of Science, Huazhong Agricultural University, Wuhan 430070, China.
| | - Chen Liu
- College of Science, Huazhong Agricultural University, Wuhan 430070, China.
| | - Zhimin Wang
- College of Science, Huazhong Agricultural University, Wuhan 430070, China.
| | - Junyi Yang
- College of Science, Huazhong Agricultural University, Wuhan 430070, China.
| | - Mengjing Xu
- College of Science, Huazhong Agricultural University, Wuhan 430070, China.
| | - Jun Dong
- College of Science, Huazhong Agricultural University, Wuhan 430070, China.
| | - Ping Wang
- College of Science, Huazhong Agricultural University, Wuhan 430070, China.
| | - Jiangjiang Gu
- College of Science, Huazhong Agricultural University, Wuhan 430070, China.
| | - Feifei Cao
- College of Science, Huazhong Agricultural University, Wuhan 430070, China.
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Yu J, Liu C, Yuan K, Lu Z, Cheng Y, Li L, Zhang X, Jin P, Meng F, Liu H. Luminescence Mechanism of Carbon Dots by Tailoring Functional Groups for Sensing Fe 3+ Ions. NANOMATERIALS 2018; 8:nano8040233. [PMID: 29649110 PMCID: PMC5923563 DOI: 10.3390/nano8040233] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/21/2018] [Revised: 04/03/2018] [Accepted: 04/09/2018] [Indexed: 11/17/2022]
Abstract
In this paper, spherical carbon dots (CDs) with distinct compositions and surface states have been successfully synthesized by a facile microwave method. From the fluorescence spectra, several characteristic luminescence features have been observed: surface amino groups are dominant in the whole emission spectra centering at 445 nm, and the fingerprint emissions relevant to the impurity levels formed by some groups related to C and N elements, including C-C/C=C (intrinsic C), C-N (graphitic N), N-containing heterocycles (pyridine N) and C=O groups, are located around 305 nm, 355 nm, 410 nm, and 500 nm, respectively. Those fine luminescence features could be ascribed to the electron transition among various trapping states within the band structure caused by different chemical bonds in carbon cores, or functional groups attached to the CDs’ surfaces. According to the theoretical calculations and experimental results, a scheme of the band structure has been proposed to describe the positions of those trapping states within the band gap. Additionally, it has also been observed that the emission of CDs is sensitive to the concentration of Fe3+ ions with a linear relation in the range of Fe3+ concentration from 12.5 to 250 μM.
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Affiliation(s)
- Jingjing Yu
- School of Materials Science and Engineering, Hebei University of Technology, Tianjin 300130, China.
| | - Chang Liu
- School of Materials Science and Engineering, Hebei University of Technology, Tianjin 300130, China.
| | - Kang Yuan
- School of Materials Science and Engineering, Hebei University of Technology, Tianjin 300130, China.
| | - Zunming Lu
- School of Materials Science and Engineering, Hebei University of Technology, Tianjin 300130, China.
| | - Yahui Cheng
- Department of Electronics and Key Laboratory of Photo-Electronic Thin Film Devices and Technology of Tianjin, Nankai University, Tianjin 300071, China.
| | - Lanlan Li
- School of Materials Science and Engineering, Hebei University of Technology, Tianjin 300130, China.
| | - Xinghua Zhang
- School of Materials Science and Engineering, Hebei University of Technology, Tianjin 300130, China.
| | - Peng Jin
- School of Materials Science and Engineering, Hebei University of Technology, Tianjin 300130, China.
| | - Fanbin Meng
- School of Materials Science and Engineering, Hebei University of Technology, Tianjin 300130, China.
| | - Hui Liu
- Key Laboratory for Advanced Ceramics and Machining Technology of Ministry of Education, the Institute for New Energy Materials, School of Materials Science and Engineering, Tianjin University, Tianjin 300072, China.
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