1
|
Yang C, Yi K, Zhu M, Yang J, Wei Y, Shang Y, Xu X. Photosensitive damage of dipeptides: mechanism and influence of structure. Phys Chem Chem Phys 2023; 25:4923-4928. [PMID: 36722384 DOI: 10.1039/d2cp05047a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
We illustrate the influence of the dipeptide structure on photosensitive damage and the kinetic mechanism was investigated using acenaphthenequinone (ACQ) as a triplet photosensitizer. With tyrosine (Tyr) serving as the core structure, two classic dipeptides with double (trptophan-tyrosine, Trp-Tyr) and single (tyrosine-alanine, Tyr-Ala and Ala-Tyr) active reaction sites were constructed, and the underlying photodamage mechanisms were investigated carefully. According to the experimental results, the proton-coupled electron transfer processes between ACQ and numerous Trp-Tyr reaction sites have independent reaction properties. The bimolecular quenching rate (kq) value is roughly equivalent to the sum of the rates of two amino acid monomers, and a novel intramolecular dynamic channel between Trp/N˙-Tyr and Trp-Tyr/O˙ was observed. The ACQ/Tyr-Ala system demonstrated the key role of steric hindrance on the kq in bimolecular reactions.
Collapse
Affiliation(s)
- Cheng Yang
- Anhui Province Key Laboratory of Optoelectric Materials Science and Technology, School of Physics and Electronic Information, Anhui Normal University, Wuhu 241002, China.
| | - Kai Yi
- Anhui Province Key Laboratory of Optoelectric Materials Science and Technology, School of Physics and Electronic Information, Anhui Normal University, Wuhu 241002, China.
| | - Meirou Zhu
- Anhui Province Key Laboratory of Optoelectric Materials Science and Technology, School of Physics and Electronic Information, Anhui Normal University, Wuhu 241002, China.
| | - Jiangxue Yang
- Anhui Province Key Laboratory of Optoelectric Materials Science and Technology, School of Physics and Electronic Information, Anhui Normal University, Wuhu 241002, China.
| | - Yaxiong Wei
- Anhui Province Key Laboratory of Optoelectric Materials Science and Technology, School of Physics and Electronic Information, Anhui Normal University, Wuhu 241002, China.
| | - Yongjia Shang
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, China
| | - Xinsheng Xu
- Anhui Province Key Laboratory of Optoelectric Materials Science and Technology, School of Physics and Electronic Information, Anhui Normal University, Wuhu 241002, China.
| |
Collapse
|
2
|
Hameed RM, Al-Haddad A, Albarazanchi AKH. Influence of Graphene Sheets Accumulation on Optical Band Gap Enhanced Graphite Exfoliation. AL-MUSTANSIRIYAH JOURNAL OF SCIENCE 2022. [DOI: 10.23851/mjs.v33i4.1216] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Recently, graphene has been adopted to replace other expansive materials in various devices that perform numerous functionalities in many industrial fields. Meanwhile, researchers are still investigating the amazing properties of graphene. Herein, reduced graphene oxide (rGO) has been successfully exfoliated directly using a graphite rod in a modified electrolyte including a table salt as a co-electrolyte. The structure of graphene obtained by using exfoliation methods shows a low ratio of O/C and confirms the high crystallinity of rGO. The thickness of rGO was adjusted during the drying of the drops of rGO solution and obtained about an 8-80 nm rGO thick. The increased O/C ratio and crystallinity enhancement could be attributed to the quantum confinement effect. Further investigations to estimate the decay constant of the optical band gap during the thinning of the rGO layers show that the optical band gap was associated with thicknesses of the rGO at a decay constant of 0.3367±0.00205. These results would be crucial in several optical applications that depend on the thicknesses and the band gap.
Collapse
|
3
|
Wiśniewski M, Roszek K. Underestimated Properties of Nanosized Amorphous Titanium Dioxide. Int J Mol Sci 2022; 23:ijms23052460. [PMID: 35269599 PMCID: PMC8910173 DOI: 10.3390/ijms23052460] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2022] [Revised: 02/19/2022] [Accepted: 02/21/2022] [Indexed: 02/01/2023] Open
Abstract
Titanium dioxide is one of the best described photosensitive materials used in photocatalysis, solar cells, self-cleaning coatings, and sunscreens. The scientific and industrial attention has been focused on the highly photoactive crystalline phase of titanium dioxide (TiO2). It is commonly accepted that the smaller TiO2 particles, the higher photoactivity they present. Therefore, titanium dioxide nanoparticles are massively produced and widely used in everyday products. The amorphous phase of titanium dioxide has been treated with neglect, as the lack of its photocatalytic properties is assumed in advance. In this work, the complex experimental proof of the UV-protective properties of the nano-sized amorphous TiO2 phase is reported. Amorphous n-TiO2 is characterized by photocatalytic inactivity and, as a consequence, low cytotoxicity to fibroblast cells. When exposed to UV radiation, cells with amorphous TiO2 better survive under stress conditions. Thus, we postulate that amorphous n-TiO2 will be more beneficial and completely safe for cosmetic applications. Moreover, the results from in situ FTIR studies let us correlate the low toxicity of amorphous samples with low ability to form hydroperoxo surface species.
Collapse
Affiliation(s)
- Marek Wiśniewski
- Physicochemistry of Carbon Materials Research Group, Faculty of Chemistry, Nicolaus Copernicus University in Toruń, Gagarina 7, 87-100 Toruń, Poland
- Correspondence: (M.W.); (K.R.)
| | - Katarzyna Roszek
- Department of Biochemistry, Faculty of Biological and Veterinary Sciences, Nicolaus Copernicus University in Toruń, Lwowska 1, 87-100 Toruń, Poland
- Correspondence: (M.W.); (K.R.)
| |
Collapse
|
4
|
Erwardt P, Roszek K, Wiśniewski M. Determination of Graphene Oxide Adsorption Space by Lysozyme Uptake─Mechanistic Studies. J Phys Chem B 2022; 126:928-933. [PMID: 35077166 PMCID: PMC8819649 DOI: 10.1021/acs.jpcb.1c08294] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Paulina Erwardt
- Faculty of Chemistry, Physicochemistry of Carbon Materials Research Group, Nicolaus Copernicus University in Toruń, Gagarina 7, 87-100 Toruń, Poland
| | - Katarzyna Roszek
- Department of Biochemistry, Faculty of Biological and Veterinary Sciences, Nicolaus Copernicus University in Toruń, Lwowska 1, 87-100 Toruń, Poland
| | - Marek Wiśniewski
- Faculty of Chemistry, Physicochemistry of Carbon Materials Research Group, Nicolaus Copernicus University in Toruń, Gagarina 7, 87-100 Toruń, Poland
| |
Collapse
|
5
|
Boothby-Shoemaker WT, Mohammad TF, Ozog DM, Lim HW. Photoprotection by clothing: A review. PHOTODERMATOLOGY, PHOTOIMMUNOLOGY & PHOTOMEDICINE 2022; 38:478-488. [PMID: 35073443 DOI: 10.1111/phpp.12776] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/27/2021] [Revised: 12/19/2021] [Accepted: 01/13/2022] [Indexed: 12/18/2022]
Abstract
Clothing is recognized by leading health agencies as a primary method to protect against the harmful effects of photodamage caused by ultraviolet (UV) radiation and visible light. The photoprotective capacity of clothing is commonly measured as the ultraviolet protective factor (UPF). While the technology driving photoprotective clothing has been well-established, there continues to be efforts to discover new materials to improve the UPF of clothing. Here, we show increased Google searches for photoprotective clothing over the last decade, suggesting a high level of public interest in photoprotective clothing. In addition, we investigate the frequency of UPF-graded photoprotective clothing sold by large retail stores featured in Fortune 1000. We review factors that alter the UPF of clothing and describe emerging textile technologies used to increase clothing's photoprotective capacity. Finally, we compare how photoprotective clothing is regulated among different countries, the importance of photoprotective clothing in occupational health, and research in visible light and clothing photoprotection.
Collapse
Affiliation(s)
- Wyatt T Boothby-Shoemaker
- Photomedicine and Photobiology Unit, Henry Ford Health System, Detroit, Michigan, USA.,Michigan State University College of Human Medicine, East Lansing, Michigan, USA
| | - Tasneem F Mohammad
- Photomedicine and Photobiology Unit, Henry Ford Health System, Detroit, Michigan, USA
| | - David M Ozog
- Photomedicine and Photobiology Unit, Henry Ford Health System, Detroit, Michigan, USA
| | - Henry W Lim
- Photomedicine and Photobiology Unit, Henry Ford Health System, Detroit, Michigan, USA
| |
Collapse
|
6
|
Sun H, Xu G, Lian W, Kastiukas G, Zhang J, Zhang X, Liu W, Xing F, Ren J. Electrochemical synthesis and property characterisation of graphene oxide using water as electrolyte. Chem Phys Lett 2022. [DOI: 10.1016/j.cplett.2021.139206] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|
7
|
Abdelhalim AOE, Sharoyko VV, Ageev SV, Farafonov VS, Nerukh DA, Postnov VN, Petrov AV, Semenov KN. Graphene Oxide of Extra High Oxidation: A Wafer for Loading Guest Molecules. J Phys Chem Lett 2021; 12:10015-10024. [PMID: 34618465 DOI: 10.1021/acs.jpclett.1c02766] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
We present a new modification of graphene oxide with very high content (85 wt %) of oxygen-containing functional groups (hydroxy, epoxy, lactol, carboxyl, and carbonyl groups) that forms stable aqueous dispersion in up to 9 g·L-1 concentration solutions. A novel faster method of the synthesis is described that produces up to 1 kg of the material and allows controlling the particle size in solution. The synthesized compound was characterized by various physicochemical methods and molecular dynamics modeling, revealing a unique structure in the form of a multilayered wafer of several sheets thick, where each sheet is highly corrugated. The ragged structure of the sheets forms pockets with hindered mobility of water that leads to the possibility of trapping guest molecules.
Collapse
Affiliation(s)
- Abdelsattar O E Abdelhalim
- Institute of Chemistry, Saint Petersburg State University, 26 Universitetskii prospekt, Saint Petersburg, 198504, Russia
- Environmental Research Department, National Center for Social and Criminological Research (NCSCR), Giza 11561, Egypt
| | - Vladimir V Sharoyko
- Institute of Chemistry, Saint Petersburg State University, 26 Universitetskii prospekt, Saint Petersburg, 198504, Russia
- Pavlov First Saint Petersburg State Medical University, 6-8 L'va Tolstogo ulitsa, Saint Petersburg, 197022, Russia
- A. M. Granov Russian Research Centre for Radiology and Surgical Technologies, 70 Leningradskaya ulitsa, Saint Petersburg, 197758, Russia
| | - Sergei V Ageev
- Institute of Chemistry, Saint Petersburg State University, 26 Universitetskii prospekt, Saint Petersburg, 198504, Russia
- Pavlov First Saint Petersburg State Medical University, 6-8 L'va Tolstogo ulitsa, Saint Petersburg, 197022, Russia
| | - Vladimir S Farafonov
- V. N. Karazin Kharkiv National University, 4 Svobody ploshchad', Kharkiv, 61022, Ukraine
| | - Dmitry A Nerukh
- Department of Mathematics, Aston University, Birmingham, B4 7ET, The United Kingdom
| | - Viktor N Postnov
- Institute of Chemistry, Saint Petersburg State University, 26 Universitetskii prospekt, Saint Petersburg, 198504, Russia
| | - Andrey V Petrov
- Institute of Chemistry, Saint Petersburg State University, 26 Universitetskii prospekt, Saint Petersburg, 198504, Russia
| | - Konstantin N Semenov
- Institute of Chemistry, Saint Petersburg State University, 26 Universitetskii prospekt, Saint Petersburg, 198504, Russia
- Pavlov First Saint Petersburg State Medical University, 6-8 L'va Tolstogo ulitsa, Saint Petersburg, 197022, Russia
- A. M. Granov Russian Research Centre for Radiology and Surgical Technologies, 70 Leningradskaya ulitsa, Saint Petersburg, 197758, Russia
| |
Collapse
|
8
|
Bolibok P, Szymczak B, Roszek K, Terzyk AP, Wiśniewski M. A New Approach to Obtaining Nano-Sized Graphene Oxide for Biomedical Applications. MATERIALS 2021; 14:ma14061327. [PMID: 33801874 PMCID: PMC8000960 DOI: 10.3390/ma14061327] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/13/2021] [Revised: 03/03/2021] [Accepted: 03/08/2021] [Indexed: 01/09/2023]
Abstract
Graphene oxide (GO) is one of the most exciting and widely used materials. A new method of nanographene oxide (n-GO) formation is presented. The described unique sequence of ultrasonication in dimethyl sulfoxide solution allows us to obtain different sizes of n-GO sheets by controlling the timing of the cutting and re-aggregation processes. The obtained n-GO exhibits only minor spectral changes, mainly due to the formation of S-containing surface groups; thus, it can be concluded that the material is not reduced during the process. Maintaining the initial oxygen functionalities together with the required nano-size (down to 200 nm) and high homogeneity are beneficial for extensive applications of n-GO. Moreover, we prove that the obtained material is evidently biocompatible. The calculated half-maximal effective concentration (EC50) increases by 5-fold, i.e., from 50 to 250 µg/mL, when GO is converted to n-GO. As a consequence, the new n-GO neither disturbs blood flow even in the narrowest capillaries nor triggers a toxic influence in surrounding cells. Thus, it can be a serious candidate for drugs and biomolecule carriers administered systemically.
Collapse
Affiliation(s)
- Paulina Bolibok
- Physicochemistry of Carbon Materials Research Group, Faculty of Chemistry, Nicolaus Copernicus University in Toruń, Gagarina 7, 87-100 Toruń, Poland; (P.B.); (A.P.T.)
| | - Bartosz Szymczak
- Department of Biochemistry, Faculty of Biological and Veterinary Sciences, Nicolaus Copernicus University in Toruń, Lwowska 1, 87-100 Toruń, Poland; (B.S.); (K.R.)
| | - Katarzyna Roszek
- Department of Biochemistry, Faculty of Biological and Veterinary Sciences, Nicolaus Copernicus University in Toruń, Lwowska 1, 87-100 Toruń, Poland; (B.S.); (K.R.)
| | - Artur P. Terzyk
- Physicochemistry of Carbon Materials Research Group, Faculty of Chemistry, Nicolaus Copernicus University in Toruń, Gagarina 7, 87-100 Toruń, Poland; (P.B.); (A.P.T.)
| | - Marek Wiśniewski
- Physicochemistry of Carbon Materials Research Group, Faculty of Chemistry, Nicolaus Copernicus University in Toruń, Gagarina 7, 87-100 Toruń, Poland; (P.B.); (A.P.T.)
- Correspondence: ; Tel.: +48-56-611-4507
| |
Collapse
|
9
|
Forbot N, Bolibok P, Wiśniewski M, Roszek K. Carbonaceous Nanomaterials-Mediated Defense Against Oxidative Stress. Mini Rev Med Chem 2020; 20:294-307. [PMID: 31738152 DOI: 10.2174/1389557519666191029162150] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2018] [Revised: 03/12/2019] [Accepted: 08/21/2019] [Indexed: 11/22/2022]
Abstract
The concept of nanoscale materials and their applications in industrial technologies, consumer goods, as well as in novel medical therapies has rapidly escalated in the last several years. Consequently, there is a critical need to understand the mechanisms that drive nanomaterials biocompatibility or toxicity to human cells and tissues. The ability of nanomaterials to initiate cellular pathways resulting in oxidative stress has emerged as a leading hypothesis in nanotoxicology. Nevertheless, there are a few examples revealing another face of nanomaterials - they can alleviate oxidative stress via decreasing the level of reactive oxygen species. The fundamental structural and physicochemical properties of carbonaceous nanomaterials that govern these anti-oxidative effects are discussed in this article. The signaling pathways influenced by these unique nanomaterials, as well as examples of their applications in the biomedical field, e.g. cell culture, cell-based therapies or drug delivery, are presented. We anticipate this emerging knowledge of intrinsic anti-oxidative properties of carbon nanomaterials to facilitate the use of tailored nanoparticles in vivo.
Collapse
Affiliation(s)
- Natalia Forbot
- Department of Biochemistry, Faculty of Biological and Veterinary Sciences, Nicolaus Copernicus University in Torun, Torun, Poland
| | - Paulina Bolibok
- Physicochemistry of Carbon Materials Research Group, Faculty of Chemistry, Nicolaus Copernicus University in Torun, Torun, Poland
| | - Marek Wiśniewski
- Physicochemistry of Carbon Materials Research Group, Faculty of Chemistry, Nicolaus Copernicus University in Torun, Torun, Poland
| | - Katarzyna Roszek
- Department of Biochemistry, Faculty of Biological and Veterinary Sciences, Nicolaus Copernicus University in Torun, Torun, Poland
| |
Collapse
|
10
|
Matulewicz K, Kaźmierski Ł, Wiśniewski M, Roszkowski S, Roszkowski K, Kowalczyk O, Roy A, Tylkowski B, Bajek A. Ciprofloxacin and Graphene Oxide Combination-New Face of a Known Drug. MATERIALS (BASEL, SWITZERLAND) 2020; 13:E4224. [PMID: 32977453 PMCID: PMC7579301 DOI: 10.3390/ma13194224] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/18/2020] [Revised: 09/17/2020] [Accepted: 09/21/2020] [Indexed: 12/26/2022]
Abstract
Drug modification with nanomaterials is a new trend in pharmaceutical studies and shows promising results, especially considering carbon-based solutions. Graphene and its derivatives have attracted much research interest for their potential applications in biomedical areas as drug modifiers. The following work is a comprehensive study regarding the toxicity of ciprofloxacin (CIP) modified by graphene oxide (GO). The influence on the morphology, viability, cell death pathway and proliferation of T24 and 786-0 cells was studied. The results show that ciprofloxacin modified with graphene oxide (CGO) shows the highest increase in cytotoxic potential, especially in the case of T24 cells. We discovered a clear connection between CIP modification with GO and the increase in its apoptotic potential. Our results show that drug modification with carbon-based nanomaterials might be a promising strategy to improve the qualities of existing drugs. Nevertheless, it is important to remember that cytotoxicity effects are highly dependent on dose and nanomaterial size. It is necessary to conduct further research to determine the optimal dose of GO for drug modification.
Collapse
Affiliation(s)
- Karolina Matulewicz
- Chair of Urology, Department of Tissue Engineering, Collegium Medicum, Nicolaus Copernicus University, Karlowicza str. 24, 85-092 Bydgoszcz, Poland; (Ł.K.); (A.B.)
| | - Łukasz Kaźmierski
- Chair of Urology, Department of Tissue Engineering, Collegium Medicum, Nicolaus Copernicus University, Karlowicza str. 24, 85-092 Bydgoszcz, Poland; (Ł.K.); (A.B.)
- Department of Oncology, Collegium Medicum, Nicolaus Copernicus University, Lukasiewicza str. 1, 85-821 Bydgoszcz, Poland;
| | - Marek Wiśniewski
- Department of Chemistry of Materials Adsorption and Catalysis, Nicolaus Copernicus University, Gagarina str. 7, 87-100 Torun, Poland;
| | - Szymon Roszkowski
- Faculty of Agronomy and Bioengineering, Poznan of Life Sciences, Wojska Polskiego str. 28, 60-637 Poznan, Poland;
| | - Krzysztof Roszkowski
- Department of Oncology, Collegium Medicum, Nicolaus Copernicus University, Lukasiewicza str. 1, 85-821 Bydgoszcz, Poland;
| | - Oliwia Kowalczyk
- Research and Education Unit for Communication in Healthcare, Department of Cardiac Surgery, Ludwik Rydygier Collegium Medicum in Bydgoszcz Nicolaus Copernicus University in Torun, M. Curie Sklodowskiej St. 9, 85-094 Bydgoszcz, Poland;
| | - Archi Roy
- Departament d’Enginyeria Química, Universitat Rovira i Virgili, Avda. Països Catalans, 26. Ed. E4. (C. Sescelades), 43007 Tarragona, Spain;
| | - Bartosz Tylkowski
- Eurecat, Centre Tecnològic de Catalunya, C/Marcellí Domingo s/n, 43007 Tarragona, Spain;
| | - Anna Bajek
- Chair of Urology, Department of Tissue Engineering, Collegium Medicum, Nicolaus Copernicus University, Karlowicza str. 24, 85-092 Bydgoszcz, Poland; (Ł.K.); (A.B.)
| |
Collapse
|
11
|
Cytotoxic or Not? Disclosing the Toxic Nature of Carbonaceous Nanomaterials through Nano-Bio Interactions. MATERIALS 2020; 13:ma13092060. [PMID: 32365624 PMCID: PMC7254307 DOI: 10.3390/ma13092060] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/26/2020] [Revised: 04/21/2020] [Accepted: 04/27/2020] [Indexed: 12/11/2022]
Abstract
The cytotoxic influence of two different carbonaceous nanomaterials on human mesenchymal stem cells (MSCs) cultured in vitro was compared in the short (1-3 days) and long term (up to 60 days). Amorphous carbon and single-walled carbon nanotubes were chosen and evaluated due to their contrasting physicochemical properties. Both materials, though supposed similarly low-toxic in basic short-term cytotoxicity assays, demonstrated dramatically different properties in the long-term study. The surface chemistry and biomolecule-adsorption capacity turned out to be crucial factors influencing cytotoxicity. We proved that amorphous carbon is able to weakly bind a low-affinity protein coat (so-called soft corona), while carbon nanotubes behaved oppositely. Obtained results from zeta-potential and adsorption measurements for both nanomaterials confirmed that a hard protein corona was present on the single-walled carbon-nanotube surface that aggravated their cytotoxic influence. The long-term exposure of the mesenchymal stem cells to carbon nanotubes, coated by the strongly bound proteins, showed a significant decrease in cell-growth rate, followed by cell senescence and death. These results are of great importance in the light of increasing nanomaterial applications in biomedicine and cell-based therapies. Our better understanding of the puzzling cytotoxicity of carbonaceous nanomaterials, reflecting their surface chemistry and interactions, is helpful in adjusting their properties when tailored for specific applications.
Collapse
|
12
|
Zhang T, Zhu GY, Yu CH, Xie Y, Xia MY, Lu BY, Fei X, Peng Q. The UV absorption of graphene oxide is size-dependent: possible calibration pitfalls. Mikrochim Acta 2019; 186:207. [DOI: 10.1007/s00604-019-3329-5] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2019] [Accepted: 02/16/2019] [Indexed: 12/31/2022]
|