Review of scientific literature and standard guidelines for the characterization of graphene-based materials
Source abstract
Abstract
Abstract Graphene is a two-dimensional carbon material with unique properties, such as high thermal and electrical conductivity, mechanical strength, elasticity, and biocompatibility. The methods used to synthesize graphene affect its structural properties, including flaws, layer count, crystalline domain size, and impurities, ultimately affecting the properties and performance of graphene-based materials. This review aims to analyze the methods used to characterize graphene, using both ISO/IEC standards and current literature as references. The discussed techniques are diverse, yet complementary, and include ultraviolet–visible spectroscopy, Raman spectroscopy, X-ray photoelectron spectroscopy, Fourier transform infrared spectroscopy, X-ray diffraction, X-ray absorption near edge structure, atomic force microscopy, scanning electron microscopy, transmission electron microscopy, the Brunauer–Emmett–Teller method, thermogravimetric analysis, in-line four-point probe, resonant cavity and terahertz time-domain spectroscopy, besides an alternative method to determine the graphene domain. By employing rigorous characterization techniques, researchers and industry professionals can ensure the reliability, effectiveness, and trustworthiness of graphene-based materials for various applications.
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Research context
OpenAlex topics: Graphene research and applications · Advancements in Battery Materials · Molecular Junctions and Nanostructures
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (100+)
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1. Mbayachi VB, Ndayiragije E, Sammani T, Taj S, Mbuta ER, Khan, AU (2021) Graphene synthesis, characterization and its applications: a review. Results Chem 3:10016310.1016/j.rechem.2021.100163 ↗
2. Shu R, Nie L, Zhao Z, Yang X (2024) Synthesis of nitrogen-doped reduced graphene oxide/magnesium ferrite/polyaniline composite aerogel as a lightweight, broadband and efficient microwave absorber. J Mater Sci Technol 175:115–12410.1016/j.jmst.2023.08.015 ↗
3. Chang L, Wang Y-Z, Zhang X-C, Li L, Zhai H-Z, Cao M-S (2024) Toward high performance microwave absorber by implanting La0. 8CoO3 nanoparticles on rGO. J Mater Sci Technol 174:176–18710.1016/j.jmst.2023.06.062 ↗
4. Cao K, Fang Y, Wang S, Zhang Y, Wen J, Chen J, Zhao R, Xue W (2024) Magnetic NiFe2O4@ FeNi3 core-shell nanospheres derived from FeNi-LDH precursor anchoring on rGO nanosheets for enhanced electromagnetic wave absorption. J Mater Sci 171:101–114
5. Gajewska K, Moyseowicz A, Minta D, Gryglewicz G (2023) Effect of electrolyte and carbon material on the electrochemical performance of high-voltage aqueous symmetric supercapacitors. J Mater Sci 58:1721–173810.1007/s10853-023-08148-5 ↗
6. Yusaf T, Mahamude ASF, Farhana K, Harun WSW, Kadirgama K, Ramasamy D, Kamarulzaman MK, Subramonian S, Hall S, Dhahad HA (2022) A comprehensive review on graphene nanoparticles: Preparation, properties, and applications. Sustainability 14:12336
7. Abbas Q, Shinde PA, Abdelkareem MA, Alami AH, Mirzaeian M, Yadav A, Olabi AG (2022) Graphene synthesis techniques and environmental applications. Materials 15:780410.3390/ma15217804 ↗
8. Ibrahim A, Klopocinska A, Horvat K, Abdel Hamid Z (2021) Graphene-based nanocomposites: synthesis, mechanical properties, and characterizations. Polymers (Basel) 13:286910.3390/polym13172869 ↗
9. Gutiérrez-Cruz A, Ruiz-Hernández AR, Vega-Clemente JF, Luna-Gazcón DG, Campos-Delgado J (2022) A review of top-down and bottom-up synthesis methods for the production of graphene, graphene oxide and reduced graphene oxide. J Mater Sci 57:14543–1457810.1007/s10853-022-07514-z ↗
10. Fraga TJM, da Motta Sobrinho MA, Carvalho MN, Ghislandi MG (2020) State of the art: synthesis and characterization of functionalized graphene nanomaterials. Nano Express 1:02200210.1088/2632-959X/abb921 ↗
11. Edward K, Mamun K, Narayan S, Assaf M, Rohindra D, Rathnayake U (2023) State-of-the-art graphene synthesis methods and environmental concerns. Appl Environ Soil Sci 1:8475504
12. IEC, International Electrotechnical Commission, Nanomanufacturing (2022) Key control characteristics—Part 6–11: graphene—defect density: Raman spectroscopy. https://webstore.iec.ch/publication/33187. Accessed 31 Aug 2023
13. ISO, ISO/TS 80004-13:2017 (2017) Nanotechnologies—vocabulary—Part 13: Graphene and related two-dimensional (2D) materials. Accessed 31 Aug 2023
14. ISO, ISO/TS 80004-3:2020 (2020) Nanotechnologies—vocabulary—Part 3: Carbon nano-objects. https://www.iso.org/standard/75335.html. Accessed 31 Aug 2023
15. ISO, ISO/TR 19733:2019 (2019) Nanotechnologies—matrix of properties and measurement techniques for graphene and related two-dimensional (2D) materials. https://www.iso.org/standard/66188.html. Accessed 1 Sep 2023
16. ISO, ISO/TS 21356-1:2021 (2021) Nanotechnologies—structural characterization of grapheme—Part 1: graphene from powders and dispersions. https://www.iso.org/standard/70757.html. Accessed 1 Sep 2023
17. Seekaew Y, Arayawut O, Timsorn K, Wongchoosuk C, Chapter Nine—Synthesis, characterization, and applications of graphene and derivatives, In: Yaragalla S, Mishra R, Thomas S, Kalarikkal N, Maria HJ (eds) Carbon-based nanofillers and their rubber nanocomposites. Elsevier, Amsterdam, pp 259–28310.1016/B978-0-12-813248-7.00009-2 ↗
18. Zhang Z, Schniepp HC, Adamson DH (2019) Characterization of graphene oxide: variations in reported approaches. Carbon 154:510–52110.1016/j.carbon.2019.07.103 ↗
19. Abdolkarimi-Mahabadi M, Bayat A, Mohammadi A (2021) Use of UV-Vis spectrophotometry for characterization of carbon nanostructures: a review. Theoret Exp Chem 57:191–19810.1007/s11237-021-09687-1 ↗
20. Orlando A, Franceschini F, Muscas C, Pidkova S, Bartoli M, Rovere M, Tagliaferro A (2021) A comprehensive review on Raman spectroscopy applications. Chemosensors 9:26210.3390/chemosensors9090262 ↗
21. Parvin N, Kumar V, Joo SW, Park S-S, Mandal TK (2022) Recent advances in the characterized identification of mono-to-multi-layer graphene and its biomedical applications: a review. Electronics 11:334510.3390/electronics11203345 ↗
22. Kumar V, Kumar A, Lee DJ, Park SS (2021) Estimation of number of graphene layers using different methods: a focused review. Materials (Basel) 14:459010.3390/ma14164590 ↗
23. Li Z, Deng L, Kinloch IA, Young RJ (2023) Raman spectroscopy of carbon materials and their composites: graphene, nanotubes and fibres. Prog Mater Sci 135:10108910.1016/j.pmatsci.2023.101089 ↗
24. NNovais GB, Dias MA, Santana AAM, Batista TC, Marques MN, Melo CR, Albuquerque RLC, Gomes MZ, Severino P, Souto EB, Cardoso JC (2023) Isoflavones-functionalized single-walled and multi-walled carbon nanotubes: synthesis and characterization of new nanoarchitetonics for biomedical uses. J Mol Struct 1294:13635110.1016/j.molstruc.2023.136351 ↗
25. Samal RR, Gautam D, Panmei K, Lanbiliu P, Saya L, Gambhir G, Hooda S, Kumar S (2022) Evolution in graphene oxide-based materials characterization and modeling. In: Reference module in materials science and materials engineering, Elsevier
26. Krishna DNG, Philip J (2022) Review on surface-characterization applications of X-ray photoelectron spectroscopy (XPS): recent developments and challenges. Appl Surf Sci Adv 12:10033210.1016/j.apsadv.2022.100332 ↗
27. Firas Habeb A, Ayad Fadel A, Falah Hasan H (2019) Behavior of X-ray analysis of carbon nanotubes. In: Hosam El-Din S, Said Moawad Mohamed ES (eds) Perspective of carbon nanotubes, IntechOpen, Rijeka, p 7
28. Gascho JLS, Costa SF, Recco AAC, Pezzin SH (2019) Graphene oxide films obtained by vacuum filtration: X-ray diffraction evidence of crystalline reorganization. J Nanomater 2019:596314810.1155/2019/5963148 ↗
29. Jeon I (2018) Graphene at interfaces; PhD Thesis, Department of Materials Science and Engineering, Massachusetts Institute of Technology, https://dspace.mit.edu/bitstream/handle/1721.1/117790/1051211579-MIT.pdf?sequence=1. Accessed 1 Jul 2024
30. Aarva A, Sainio S, Deringer VL, Caro MA, Laurila T (2021) X-ray spectroscopy fingerprints of pristine and functionalized graphene. J Phys Chem C 125:18234–1824610.1021/acs.jpcc.1c03238 ↗
31. Ganya ES, Soin N, Moloi SJ, McLaughlin JA, Pong WF, Ray SC (2020) Polyacrylate grafted graphene oxide nanocomposites for biomedical applications. J Appl Phys 127:05430210.1063/1.5135572 ↗
32. Meyer JC (2021) Transmission electron microscopy characterization of grapheme. In: Skakalova V, Kaiser AB (eds), Graphene, 2nd edn, Ch 13. Woodhead Publishing, Cambridge, pp 317–34310.1016/B978-0-08-102848-3.00013-X ↗
33. Teklu A, Barry C, Palumbo M, Weiwadel C, Kuthirummal N, Flagg J (2019) Mechanical characterization of reduced graphene oxide using AFM. Adv Condensed Matter Phys 2019:871396510.1155/2019/8713965 ↗
34. De Silva KKH, Huang H-H, Viswanath P, Joshi R, Yoshimura M (2022) Nanoscale electrical characterization of graphene-based materials by atomic force microscopy. J Mater Res 37:3319–333910.1557/s43578-022-00758-0 ↗
35. Nguyen-Tri P, Ghassemi P, Carriere P, Nanda S, Assadi AA, Nguyen DD (2020) Recent applications of advanced atomic force microscopy in polymer science: a review. Polymers (Basel) 12:114210.3390/polym12051142 ↗
36. Du W, Ma R, Liu Z, Yang G, Chen T (2021) Study on the adsorption properties of graphene oxide/laponite RD/chitosan composites. Materials (Basel) 14:322410.3390/ma14123224 ↗
37. Mohan VB, Jayaraman K, Bhattacharyya D (2020) Brunauer–Emmett–Teller (BET) specific surface area analysis of different graphene materials: a comparison to their structural regularity and electrical properties. Solid State Commun 320:11400410.1016/j.ssc.2020.114004 ↗
38. Farivar F, Yap PL, Hassan K, Tung TT, Tran DNH, Pollard AJ, Losic D (2021) Unlocking thermogravimetric analysis (TGA) in the fight against “Fake graphene” materials. Carbon 179:505–51310.1016/j.carbon.2021.04.064 ↗
39. Farivar F, Lay Yap P, Karunagaran RU, Losic D (2021) Thermogravimetric analysis (TGA) of graphene materials: effect of particle size of graphene, graphene oxide and graphite on thermal parameters. J Carbon Res 7:4110.3390/c7020041 ↗
40. Naftaly M, Das S, Gallop J, Pan K, Alkhalil F, Kariyapperuma D, Constant S, Ramsdale C, Hao L (2021) Sheet resistance measurements of conductive thin films: a comparison of techniques. Electronics 10:96010.3390/electronics10080960 ↗
41. Cultrera A, Serazio D, Zurutuza A, Centeno A, Txoperena O, Etayo D, Cordon A, Redo-Sanchez A, Arnedo I, Ortolano M, Callegaro L (2019) Mapping the conductivity of graphene with electrical resistance tomography. Sci Rep 9:1065510.1038/s41598-019-46713-8 ↗
42. IEC, TS 62607-6-8:2023 (2023) Nanomanufacturing—key control characteristics—Part 6–8: graphene-sheet resistance: in-line four-point probe. https://webstore.iec.ch/publication/32302. Accessed 27 Dec 2023
43. Obrzut J, Emiroglu C, Kirillov O, Yang Y, Elmquist RE (2016) Surface conductance of graphene from non-contact resonant cavity. Measurement 87:146–15110.1016/j.measurement.2016.03.020 ↗
44. IEC, TS 62607-6-4:2024 (2024) Nanomanufacturing—key control characteristics—Part 6–4: graphene-based materials—surface conductance: non-contact microwave resonant cavity method. https://www.csagroup.org/store/product/iec_068258/. Accessed 1 Jul 2024
45. IEC, TS 62607-6-4:2016 (2016) Nanomanufacturing—key control characteristics—Part 6–4: grapheme—surface conductance measurement using resonant cavity, chrome-extension://efaidnbmnnnibpcajpcglclefindmkaj. https://webstore.iec.ch/p-preview/info_iects62607-6-4%7Bed1.0%7Den.pdf. Accessed 1 Jul 2024
46. 16NRM01, EMPIR GRACE Consortium (2020) In: Fabricius A, Cultrera A, Catanzaro A (eds), Good practice guide on the electrical characterisation of graphene using noncontact and high throughput methods, ISBN: 978-88-945324-2–5. http://empir.npl.co.uk/grace/. Accessed 1 Jul 2024
47. Mølvig BH, Bæk T, Ji J, Bøggild P, Lange SJ, Jepsen PU (2023) Terahertz cross-correlation spectroscopy and imaging of large-area graphene. Sensors 23:329710.3390/s23063297 ↗
48. Whelan PR, Zhou B, Bezencenet O, Shivayogimath A, Mishra N, Shen Q, Jessen BS, Pasternak I, Mackenzie DMA, Ji J, Sun C, Seneor P, Dlubak B, Luo B, Østerberg FW, Huang D, Shi H, Luo D, Wang M, Ruoff RS, Conran BR, McAleese C, Huyghebaert C, Brems S, Booth TJ, Napal I, Strupinski W, Petersen DH, Forti S, Coletti C, Jouvray A, Teo KBK, Centeno A, Zurutuza A, Legagneux P, Jepsen PU, Bøggild P (2021) Case studies of electrical characterisation of graphene by terahertz time-domain spectroscopy. 2D Materials 8:022003
49. IEC, TS 62607-6-10:2021 (2021) Nanomanufacturing—key control characteristics—Part 6–10: graphene-based material-sheet resistance: terahertz time-domain spectroscopy. https://webstore.iec.ch/publication/28888. Accessed 27 Dec 2023
50. Cayambe M, Zambrano C, Tene T, Guevara M, Tubon Usca G, Brito H, Molina R, Coello-Fiallos D, Caputi LS, Vacacela Gomez C (2021) Dispersion of graphene in ethanol by sonication. Mater Today Proc 37:4027–403010.1016/j.matpr.2020.06.441 ↗
51. Ojrzynska M, Wroblewska A, Judek J, Malolepszy A, Duzynska A, Zdrojek M (2020) Study of optical properties of graphene flakes and its derivatives in aqueous solutions. Opt Express 28:7274–728110.1364/OE.382523 ↗
52. Sherif HHA, El Hotaby W, Khalil SKH, Hemdan BA, Khalil WA (2023) Preparation, characterization, and biological assessment of functionalized reduced graphene oxide–silver nanocomposite. J Mater Res 38:1843–185710.1557/s43578-022-00845-2 ↗
53. Tene T, Tubon Usca G, Guevara M, Molina R, Veltri F, Arias M, Caputi LS, Vacacela Gomez C (2020) Toward large-scale production of oxidized graphene. Nanomater (Basel, Switz) 10:2–279
54. IEC, IEC/TS 62607-6-14:2020 (2020) Nanomanufacturing—key control characteristics—Part 6–14: graphene-based material—defect level: Raman spectroscopy. https://webstore.iec.ch/publication/32976. Accessed 15 Sep 2023
55. Cançado LG, Jorio A, Ferreira EHM, Stavale F, Achete CA, Capaz RB, Moutinho MVO, Lombardo A, Kulmala TS, Ferrari AC (2011) Quantifying defects in graphene via raman spectroscopy at different excitation energies. Nano Lett 11:3190–319610.1021/nl201432g ↗
56. Hu K, Brambilla L, Sartori P, Moscheni C, Perrotta C, Zema L, Bertarelli C, Castiglioni C (2023) Development of tailored graphene nanoparticles: preparation, sorting and structure assessment by complementary techniques. Molecules 28:56510.3390/molecules28020565 ↗
57. Zhang Z, Jin H, Wu C, Ji J (2018) Efficient production of high-quality few-layer graphene using a simple hydrodynamic-assisted exfoliation method. Nanoscale Res Lett 13:41610.1186/s11671-018-2830-9 ↗
58. Childres I, Qi Y, Sadi MA, Ribeiro JF, Cao H, Chen YP (2022) Combined raman spectroscopy and magneto-transport measurements in disordered graphene: correlating Raman D band and weak localization features. Coatings 12:113710.3390/coatings12081137 ↗
59. Hwangbo Y, Lee C-K, Mag-Isa AE, Jang J-W, Lee H-J, Lee S-B, Kim S-S, Kim J-H (2014) Interlayer non-coupled optical properties for determining the number of layers in arbitrarily stacked multilayer graphenes. Carbon 77:454–46110.1016/j.carbon.2014.05.050 ↗
60. Al-Quraishi KK, He Q, Kauppila W, Wang M, Yang Y (2020) Mechanical testing of two-dimensional materials: a brief review. Int J Smart Nano Mater 11:207–24610.1080/19475411.2020.1791276 ↗
61. IEC, IEC/TS 62607-6-6: 2021 (2021) Nanomanufacturing—key control characteristics—Part 6–6: graphene—strain uniformity: Raman spectroscopy. https://webstore.iec.ch/publication/34162. Accessed 15 Sep 2023
62. Pastore Carbone MG, Tsoukleri G, Manikas AC, Makarona E, Tsamis C, Galiotis C (2019) Production and mechanical characterization of graphene micro-ribbons. J Compos Sci 3:4210.3390/jcs3020042 ↗
63. IEC, IEC/TS 62607-6-18: 2022 (2022) Nanomanufacturing—key control characteristics—Part 6–18: graphene-based material—functional groups: TGA-FTIR. https://webstore.iec.ch/publication/62180. Accessed 20 Sep 2023
64. Wijaya R, Andersan G, Permatasari Santoso S, Irawaty W (2020) Green reduction of graphene oxide using kaffir lime peel extract (citrus hystrix) and its application as adsorbent for methylene blue. Sci Rep 10:66710.1038/s41598-020-57433-9 ↗
65. Eivazzadeh-Keihan R, Alimirzaloo F, Aghamirza Moghim Aliabadi H, Bahojb Noruzi E, Akbarzadeh AR, Maleki A, Madanchi H, Mahdavi M (2022) Functionalized graphene oxide nanosheets with folic acid and silk fibroin as a novel nanobiocomposite for biomedical applications. Sci Rep 12:620510.1038/s41598-022-10212-0 ↗
66. Kumar N, Srivastava VC (2018) Simple synthesis of large graphene oxide sheets via electrochemical method coupled with oxidation process. ACS Omega 3:10233–1024210.1021/acsomega.8b01283 ↗
67. IEC, IEC/TS 62607-6-21: 2022 (2022) Nanomanufacturing—key control characteristics—Part 6–21: graphene-based material—elemental composition, C/O ratio: X-ray photoelectron spectroscopy. https://webstore.iec.ch/publication/62184. Accessed 22 Sep 2023
68. Kovtun A, Jones D, Dell’Elce S, Treossi E, Liscio A, Palermo V (2019) Accurate chemical analysis of oxygenated graphene-based materials using X-ray photoelectron spectroscopy. Carbon 143:268–27510.1016/j.carbon.2018.11.012 ↗
69. Foschi M, Capasso P, Maggi MA, Ruggieri F, Fioravanti G (2021) Experimental design and response surface methodology applied to graphene oxide reduction for adsorption of triazine herbicides. ACS Omega 6:16943–1695410.1021/acsomega.1c01877 ↗
70. IEC, IEC/TS 62607-6-17: 2023 (2023) Nanomanufacturing—key control characteristics—Part 6–17: grapheme—based material—order parameter: X-ray diffraction and transmission electron microscopy. https://products.iec.ch/view/pub/62179?q=eyJtb2RlIjoiUFVCTElDQVRJT04iLCJzb3J0QnkiOiJyZWZlcmVuY2UtLWFzYyIsImxhbmd1YWdlIjoiZW4ifQ%3D%3D. Accessed 2 Oct 2023
71. Arbuzov AA, Muradyan VE, Tarasov BP (2013) Synthesis of graphene-like materials by graphite oxide reduction. Russ Chem Bull 62:1962–196610.1007/s11172-013-0284-x ↗
72. Emiru TF, Ayele DW (2017) Controlled synthesis, characterization and reduction of graphene oxide: a convenient method for large scale production. Egypt J Basic Appl Sci 4:74–79
73. Iglesias-Juez A, Chiarello GL, Patience GS, Guerrero-Pérez MO (2022) Experimental methods in chemical engineering: X-ray absorption spectroscopy—XAS, XANES, EXAFS. Can J Chem Eng 100:3–2210.1002/cjce.24291 ↗
74. Sharma A, Varshney M, Nanda SS, Shin HJ, Kim N, Yi DK, Chae K-H, Ok Won S (2018) Structural, electronic structure and antibacterial properties of graphene-oxide nano-sheets. Chem Phys Lett 698:85–9210.1016/j.cplett.2018.03.010 ↗
75. Sharma A, Nanda SS, Parkash J, Sahai A, Kumar S, Maikhuri D, Yi DK, Shin H-J, Chae K-H, Won SO (2019) Structural and electronic structure investigations on sonication based synthesized graphene oxide and reduced-graphene oxide nano-sheets. Phys Scr 94:12580710.1088/1402-4896/ab3868 ↗
76. Sieradzka M, Ślusarczyk C, Biniaś W, Fryczkowski R (2021) The role of the oxidation and reduction parameters on the properties of the reduced graphene oxide. Coatings 11:16610.3390/coatings11020166 ↗
77. Ding J, Zhao H, Yu H (2021) Graphene nanofluids based on one-step exfoliation and edge-functionalization. Carbon 171:29–3510.1016/j.carbon.2020.08.068 ↗
78. Cho JH, Na SR, Park S, Akinwande D, Liechti KM, Cullinan MA (2019) Controlling the number of layers in graphene using the growth pressure. Nanotechnology 30:23560210.1088/1361-6528/ab0847 ↗
79. Chuah R, Gopinath SCB, Anbu P, Salimi MN, Yaakub ARW, Lakshmipriya T (2020) Synthesis and characterization of reduced graphene oxide using the aqueous extract of Eclipta prostrata. 3 Biotech 10:36410.1007/s13205-020-02365-4 ↗
80. Navik R, Gai Y, Wang W, Zhao Y (2018) Curcumin-assisted ultrasound exfoliation of graphite to graphene in ethanol. Ultrason Sonochem 48:96–10210.1016/j.ultsonch.2018.05.010 ↗
81. Ishida N (2024) Atomic force microscopy. In: Otsuki A, Jose S, Mohan M, Thomas S (eds) Non-destructive material characterization methods. Ch 4. Elsevier, Amsterdam, pp 89–12510.1016/B978-0-323-91150-4.00011-2 ↗
82. Garg M, Thakur A (2023) A review: biomedical applications of phosphorene, antimonene, and germanene-based 2D material/hydrogel complexes. J Mater Sci 58:34–4510.1007/s10853-022-07954-7 ↗
83. Xiao B, Yin M, Li W, Liang L, Dai S, Zhang X, Wang W, Liu Z (2023) Significant enhanced mechanical properties of suspended graphene film by stacking multilayer CVD graphene films. Micromachines. https://doi.org/10.3390/mi1404074510.3390/mi14040745 ↗
84. Kwaśniewska A, Świetlicki M, Prószyński A, Gładyszewski G (2021) The quantitative nanomechanical mapping of starch/kaolin film surfaces by peak force AFM. Polymers (Basel) 13:24410.3390/polym13020244 ↗
85. Morsink M, Severino P, Luna-Ceron E, Hussain MA, Sobahi N, Shin SR (2022) Effects of electrically conductive nano-biomaterials on regulating cardiomyocyte behavior for cardiac repair and regeneration. Acta Biomater 139:141–15610.1016/j.actbio.2021.11.022 ↗
86. Lee M, Kim MC, Lee JY (2022) Nanomaterial-based electrically conductive hydrogels for cardiac tissue repair. Int J Nanomed 17:6181–620010.2147/IJN.S386763 ↗
87. Pilato S, Moffa S, Siani G, Diomede F, Trubiani O, Pizzicannella J, Capista D, Passacantando M, Samorì P, Fontana A (2023) 3D Graphene oxide-polyethylenimine scaffolds for cardiac tissue engineering. ACS Appl Mater Interfaces 15:14077–14088
88. Lim S, Park H, Yamamoto G, Lee C, Suk JW (2021) Measurements of the electrical conductivity of monolayer graphene flakes using conductive atomic force microscopy. Nanomater (Basel) 11:2575–258610.3390/nano11102575 ↗
89. Gürünlü B, Taşdelen-Yücedağ Ç, Bayramoğlu M (2022) One pot synthesis of graphene through microwave assisted liquid exfoliation of graphite in different solvents. Molecules 27:502710.3390/molecules27155027 ↗
90. Li J, Wu J, Huang Z, Qi X, Zhong J (2019) Local conductivity of graphene oxide study by conductive atomic force microscope. J Appl Phys 126:21570110.1063/1.5122883 ↗
91. Chlanda A, Walejewska E, Kowiorski K, Heljak M, Swieszkowski W, Lipińska L (2021) Investigation into morphological and electromechanical surface properties of reduced-graphene-oxide-loaded composite fibers for bone tissue engineering applications: a comprehensive nanoscale study using atomic force microscopy approach. Micron 146:10307210.1016/j.micron.2021.103072 ↗
92. Gao N, Cai Z, Chang G, He Y (2023) Non-invasive and wearable glucose biosensor based on gel electrolyte for detection of human sweat. J Mater Sci 58:890–90110.1007/s10853-022-08095-7 ↗
93. Trinh TTPNX, Quang DT, Tu TH, Dat NM, Linh VNP, Van Cuong L, Nghia LTT, Loan TT, Hang PT, Phuong NTL, Phong MT, Nam HM, Hieu NH (2019) Fabrication, characterization, and adsorption capacity for cadmium ions of graphene aerogels. Synthetic Metals 247:116–12310.1016/j.synthmet.2018.11.020 ↗
94. Yadav KK, Wadhwa R, Khan N, Jha M (2021) Efficient metal-free supercapacitor based on graphene oxide derived from waste rice. Curr Res Green Sustain Chem 4:10007510.1016/j.crgsc.2021.100075 ↗
95. Anurag K, Kumar SR (2023) Scalable preparation of high-quality graphene by electrochemical exfoliation: effect of hydrogen peroxide addition. Bull Mater Sci 46:4210.1007/s12034-022-02876-1 ↗
96. Masrie M, Badaruddin SAM, Hussin MRM, Nor N, Joe J (2020) Rapid reduction of graphene oxide thin films on large-area silicon substrate. J Phys Conf Ser 1535:01202710.1088/1742-6596/1535/1/012027 ↗
97. Tas M, Altin Y, CelikBedeloglu A (2019) Reduction of graphene oxide thin films using a stepwise thermal annealing assisted by l-ascorbic acid. Diam Relat Mater 92:242–24710.1016/j.diamond.2019.01.009 ↗
98. IEC, TS 62607-6-1:2020 (2020) Nanomanufacturing—key control characteristics—Part 6–1: graphene-based material—volume resistivity: four probe method. https://webstore.iec.ch/publication/32147. Accessed 1 Jul 2024
99. Melios C, Huang N, Callegaro L, Centeno A, Cultrera A, Cordon A, Panchal V, Arnedo I, Redo-Sanchez A, Etayo D, Fernandez M, Lopez A, Rozhko S, Txoperena O, Zurutuza A, Kazakova O (2020) Towards standardisation of contact and contactless electrical measurements of CVD graphene at the macro-, micro- and nano-scale. Sci Rep 10:322310.1038/s41598-020-59851-1 ↗
100. Okigawa Y, Kato R, Yamada T, Ishihara M, Hasegawa M (2015) Electrical properties and domain sizes of graphene films synthesized by microwave plasma treatment under a low carbon concentration. Carbon 82:60–6610.1016/j.carbon.2014.10.029 ↗