1
|
Mao X, Hao C. Recent advances in the use of composite titanium dioxide nanomaterials in the food industry. J Food Sci 2024; 89:1310-1323. [PMID: 38343295 DOI: 10.1111/1750-3841.16968] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2023] [Revised: 11/08/2023] [Accepted: 01/18/2024] [Indexed: 03/12/2024]
Abstract
Titanium dioxide (TiO2 ) nanomaterials have attracted significant attention due to their good biocompatibility and potential for multifunctional applications. In the last few years, there has been growing interest in the use of TiO2 nanomaterials in the food industry. However, a systematic review of the synthesis methods, properties, and applications of TiO2 nanomaterials in the food industry is lacking. In this review, we provide a summary of the synthesis and properties of TiO2 nanomaterials and their composites, with a focus on their applications in the food industry. We also discuss the potential benefits and risks of using TiO2 nanomaterials in food applications. This review aims to promote food innovation and improve food quality and safety.
Collapse
Affiliation(s)
- Xixi Mao
- School of Marxism, Jiangnan University, Wuxi, Jiangsu, China
| | - Changlong Hao
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi, Jiangsu, China
- School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, China
| |
Collapse
|
2
|
Evans SJ, Lawrence RL, Ilett M, Burgum MJ, Meldrum K, Hondow N, Jenkins GJ, Clift MJD, Doak SH. Industrial-relevant TiO 2 types do not promote cytotoxicity in the A549 or TK6 cell lines regardless of cell specific interaction. Toxicol In Vitro 2022; 83:105415. [PMID: 35752104 DOI: 10.1016/j.tiv.2022.105415] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2021] [Revised: 03/07/2022] [Accepted: 06/04/2022] [Indexed: 01/09/2023]
Abstract
Due to the expansive application of TiO2 and its variance in physico-chemical characteristics, the toxicological profile of TiO2, in all its various forms, requires evaluation. This study aimed to assess the hazard of five TiO2 particle-types in relation to their cytotoxic profile correlated to their cellular interaction, specifically in human lymphoblast (TK6) and type-II alveolar epithelial (A549) cells. Treatment with the test materials was undertaken at a concentration range of 1-100 μg/cm2 over 24 and 72 h exposure. TiO2 interaction with both cell types was visualised by transmission electron microscopy, supported by energy-dispersive X-ray. None of the TiO2 materials tested promoted cytotoxicity in either cell type over the concentration and time range studied. All materials were observed to interact with the A549 cells and were further noted to be internalised following 24 h exposure. In contrast, only the pigmentary rutile was internalised by TK6 lymphoblasts after 24 h exposure. Where uptake was observed there was no evidence, as determined by 2D microscopy techniques, of particle localisation within the nucleus of either cell type. This study indicates that industrially relevant TiO2 particles demonstrate cell interactions that are cell-type dependent and do not induce cytotoxicity at the applied dose range.
Collapse
Affiliation(s)
- Stephen J Evans
- In Vitro Toxicology Group, Institute of Life Science, Swansea Univeristy Medical School, Swansea University, Singleton Park, Swansea, SA2 8PP, Wales, UK
| | - Rachel L Lawrence
- In Vitro Toxicology Group, Institute of Life Science, Swansea Univeristy Medical School, Swansea University, Singleton Park, Swansea, SA2 8PP, Wales, UK
| | - Martha Ilett
- School of Chemical and Process Engineering, University of Leeds, Leeds LS2 9JT, UK
| | - Michael J Burgum
- In Vitro Toxicology Group, Institute of Life Science, Swansea Univeristy Medical School, Swansea University, Singleton Park, Swansea, SA2 8PP, Wales, UK
| | - Kirsty Meldrum
- In Vitro Toxicology Group, Institute of Life Science, Swansea Univeristy Medical School, Swansea University, Singleton Park, Swansea, SA2 8PP, Wales, UK
| | - Nicole Hondow
- School of Chemical and Process Engineering, University of Leeds, Leeds LS2 9JT, UK
| | - Gareth J Jenkins
- In Vitro Toxicology Group, Institute of Life Science, Swansea Univeristy Medical School, Swansea University, Singleton Park, Swansea, SA2 8PP, Wales, UK
| | - Martin J D Clift
- In Vitro Toxicology Group, Institute of Life Science, Swansea Univeristy Medical School, Swansea University, Singleton Park, Swansea, SA2 8PP, Wales, UK
| | - Shareen H Doak
- In Vitro Toxicology Group, Institute of Life Science, Swansea Univeristy Medical School, Swansea University, Singleton Park, Swansea, SA2 8PP, Wales, UK.
| |
Collapse
|
3
|
A Comprehensive Review of the Development of Carbohydrate Macromolecules and Copper Oxide Nanocomposite Films in Food Nanopackaging. Bioinorg Chem Appl 2022; 2022:7557825. [PMID: 35287316 PMCID: PMC8917952 DOI: 10.1155/2022/7557825] [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: 10/25/2021] [Accepted: 02/07/2022] [Indexed: 02/08/2023] Open
Abstract
Background. Food nanopackaging helps maintain food quality against physical, chemical, and storage instability factors. Copper oxide nanoparticles (CuONPs) can improve biopolymers’ mechanical features and barrier properties. This will lead to antimicrobial and antioxidant activities in food packaging to extend the shelf life. Scope and Approach. Edible coatings based on carbohydrate biopolymers have improved the quality of packaging. Several studies have addressed the role of carbohydrate biopolymers and incorporated nanoparticles to enhance food packets’ quality as active nanopackaging. Combined with nanoparticles, these biopolymers create film coatings with an excellent barrier property against transmissions of gases such as O2 and CO2. Key Findings and Conclusions. This review describes the CuO-biopolymer composites, including chitosan, agar, cellulose, carboxymethylcellulose, cellulose nanowhiskers, carrageenan, alginate, starch, and polylactic acid, as food packaging films. Here, we reviewed different fabrication techniques of CuO biocomposites and the impact of CuONPs on the physical, mechanical, barrier, thermal stability, antioxidant, and antimicrobial properties of carbohydrate-based films.
Collapse
|
4
|
Skowron K, Wiktorczyk-Kapischke N, Grudelwska-Buda K, Zacharski M, Paluszak Z, Gospodarek-Komkowska E. Antimicrobial effect of radiant catalytic ionization. Lett Appl Microbiol 2021; 74:482-497. [PMID: 34822730 DOI: 10.1111/lam.13609] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2021] [Revised: 10/19/2021] [Accepted: 11/05/2021] [Indexed: 12/22/2022]
Abstract
The main purpose of micro-organisms elimination from the air and surfaces is to ensure microbiological safety in health care facilities or food production plants. Currently, many disinfection methods are used, both physical, chemical and, increasingly, biological. Scientists seek new solutions with high antimicrobial effectiveness (especially against the drug-resistant strains of bacteria), low production and operating costs, and, above all, the safety of patients and food consumers. The limitation of the methods used so far is primarily the micro-organisms acquire the resistance, mainly to antimicrobial agents. One of the new and alternative methods of disinfection is radiant catalytic ionization (RCI). RCI is an active method of air and surface purification. The technology proved high efficiency against viruses, Gram-positive and -negative bacteria, and fungi, both in the air and on surfaces (planktonic forms and biofilm). RCI has many advantages as well as some minor limitations. This overview summarizes the current knowledge about RCI technology.
Collapse
Affiliation(s)
- K Skowron
- Department of Microbiology, Nicolaus Copernicus University in Toruń, L. Rydygier Collegium Medicum, Bydgoszcz, Poland
| | - N Wiktorczyk-Kapischke
- Department of Microbiology, Nicolaus Copernicus University in Toruń, L. Rydygier Collegium Medicum, Bydgoszcz, Poland
| | - K Grudelwska-Buda
- Department of Microbiology, Nicolaus Copernicus University in Toruń, L. Rydygier Collegium Medicum, Bydgoszcz, Poland
| | - M Zacharski
- Department of Biochemistry and Molecular Biology, Wrocław University of Environmental and Life Sciences, Wrocław, Poland
| | - Z Paluszak
- Department of Microbiology and Food Technology, UTP University of Science and Technology in Bydgoszcz, Bydgoszcz, Poland
| | - E Gospodarek-Komkowska
- Department of Microbiology, Nicolaus Copernicus University in Toruń, L. Rydygier Collegium Medicum, Bydgoszcz, Poland
| |
Collapse
|
5
|
Harun AM, Noor NFM, Zaid A, Yusoff ME, Shaari R, Affandi NDN, Fadil F, Rahman MAA, Alam MK. The Antimicrobial Properties of Nanotitania Extract and Its Role in Inhibiting the Growth of Klebsiella pneumonia and Haemophilus influenza. Antibiotics (Basel) 2021; 10:961. [PMID: 34439011 PMCID: PMC8388903 DOI: 10.3390/antibiotics10080961] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2021] [Revised: 07/02/2021] [Accepted: 08/06/2021] [Indexed: 11/24/2022] Open
Abstract
Titanium dioxide (TiO2) is an antimicrobial agent which is considered of potential value in inhibiting the growth of multiple bacteria. Klebsiella pneumonia and Haemophilus influenza are two of the most common respiratory infection pathogens, and are the most. Klebsiella pneumonia causes fatal meningitis, while Haemophilus influenza causes mortality even in younger patients. Both are associated with bacteremia and mortality. The purpose of this study was to test a new antibacterial material, namely nanotitania extract combined with 0.03% silver that was developed at Universiti Malaysia Sabah (UMS) and tested against K. pneumonia and H. influenza. The nanoparticles were synthesized through a modified hydrothermal process, combined with molten salt and proven to have excellent crystallinity, with the band-gap energy falling in the visible light spectrum. The nanoparticle extract was tested using a macro-dilutional method, which involved combining it with 0.03% silver solution during the process of nanoparticle synthesis and then introducing it to the bacteria. A positive control containing the bacteria minus the nanoparticles extract was also prepared. 25 mg/mL, 12.5 mg/mL, and 6.25 mg/mL concentrations of the samples were produced using the macro dilution method. After adding the bacteria to multiple concentrations of nanoparticle extract, the suspensions were incubated for 24 h at a temperature of 37 °C. The suspensions were then spread on Mueller-Hinton agar (K. pneumonia) and chocolate blood agar (H. influenza), where the growth of bacteria was observed after 24 h. Nanoparticle extract in combination with silver at 0.03% was proven to have potential as an antimicrobial agent as it was able to inhibit H. influenza at all concentrations. Furthermore, it was also shown to be capable of inhibiting K. pneumonia at concentrations of 25 mg/mL and 50 mg/mL. In conclusion, the nanoparticle extract, when tested using a macro-dilutional method, displayed antimicrobial properties which were proven effective against the growth of both K. pneumonia and H. influenza.
Collapse
Affiliation(s)
- Ahmad Mukifza Harun
- Engineering Faculty, Universiti Malaysia Sabah, Jalan UMS, Kota Kinabalu 88400, Malaysia
| | - Nor Farid Mohd Noor
- Health Campus, School of Dental Sciences, Universiti Sains Malaysia, Kubang Kerian 16150, Malaysia; (A.Z.); (M.E.Y.); (R.S.)
| | - Awatief Zaid
- Health Campus, School of Dental Sciences, Universiti Sains Malaysia, Kubang Kerian 16150, Malaysia; (A.Z.); (M.E.Y.); (R.S.)
| | - Mohamad Ezany Yusoff
- Health Campus, School of Dental Sciences, Universiti Sains Malaysia, Kubang Kerian 16150, Malaysia; (A.Z.); (M.E.Y.); (R.S.)
| | - Ramizu Shaari
- Health Campus, School of Dental Sciences, Universiti Sains Malaysia, Kubang Kerian 16150, Malaysia; (A.Z.); (M.E.Y.); (R.S.)
| | - Nor Dalila Nor Affandi
- Textile Research Group, Faculty of Applied Sciences, Universiti Teknologi MARA, Shah Alam 40450, Malaysia; (N.D.N.A.); (F.F.)
| | - Fatirah Fadil
- Textile Research Group, Faculty of Applied Sciences, Universiti Teknologi MARA, Shah Alam 40450, Malaysia; (N.D.N.A.); (F.F.)
| | - Mohd Azizi Abdul Rahman
- Malaysia Japan International Institute of Technology, Universiti Teknologi Malaysia, Jalan Sultan Yahya Petra, Kuala Lumpur 54100, Malaysia;
| | - Mohammad Khursheed Alam
- College of Dentistry, Jouf University, Sakaka 72721, Saudi Arabia;
- Department of Dental Research Cell, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences, Chennai 600077, India
| |
Collapse
|
6
|
Taboada-López MV, Vázquez-Expósito G, Domínguez-González R, Herbello-Hermelo P, Bermejo-Barrera P, Moreda-Piñeiro A. Biopersistence rate of metallic nanoparticles in the gastro-intestinal human tract (stage 0 of the EFSA guidance for nanomaterials risk assessment). Food Chem 2021; 360:130002. [PMID: 33975071 DOI: 10.1016/j.foodchem.2021.130002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2020] [Revised: 04/06/2021] [Accepted: 04/30/2021] [Indexed: 11/25/2022]
Abstract
The European Food Safety Authority has published a guidance regarding risk assessment of nanomaterials in food and feed. Following these recommendations, an in vitro gastrointestinal digestion has been applied to study the biopersistence of TiO2 and Ag NPs in standards, molluscs and surimi. TiO2 NPs standards and TiO2 NPs/ TiO2 microparticles from E171 were not found to be degraded. Ag NPs proved to be more degradable than TiO2 NPs, but the biopersistence rates were higher than 12%, which means that Ag NPs are also biopersistent. Findings for seafood are quite similar to those obtained for TiO2 NPs and Ag NPs standards, although the calculation of the biopersistence rate proposed by the EFSA was not found to be straightforward for foodstuff (the use of the NPs concentration in the sample instead of the NPs concentration at initial time (sample mixed with the gastric solution before enzymatic hydrolysis) has been proposed.
Collapse
Affiliation(s)
- María Vanesa Taboada-López
- Trace Elements, Spectroscopy and Speciation Group (GETEE), Strategic Grouping in Materials (AEMAT), Department of Analytical Chemistry, Nutrition and Bromatology, Faculty of Chemistry, Universidade de Santiago de Compostela, Avenida das Ciencias, s/n., 15782 Santiago de Compostela, Spain
| | - Gemma Vázquez-Expósito
- Trace Elements, Spectroscopy and Speciation Group (GETEE), Strategic Grouping in Materials (AEMAT), Department of Analytical Chemistry, Nutrition and Bromatology, Faculty of Chemistry, Universidade de Santiago de Compostela, Avenida das Ciencias, s/n., 15782 Santiago de Compostela, Spain
| | - Raquel Domínguez-González
- Trace Elements, Spectroscopy and Speciation Group (GETEE), Strategic Grouping in Materials (AEMAT), Department of Analytical Chemistry, Nutrition and Bromatology, Faculty of Chemistry, Universidade de Santiago de Compostela, Avenida das Ciencias, s/n., 15782 Santiago de Compostela, Spain
| | - Paloma Herbello-Hermelo
- Trace Elements, Spectroscopy and Speciation Group (GETEE), Strategic Grouping in Materials (AEMAT), Department of Analytical Chemistry, Nutrition and Bromatology, Faculty of Chemistry, Universidade de Santiago de Compostela, Avenida das Ciencias, s/n., 15782 Santiago de Compostela, Spain
| | - Pilar Bermejo-Barrera
- Trace Elements, Spectroscopy and Speciation Group (GETEE), Strategic Grouping in Materials (AEMAT), Department of Analytical Chemistry, Nutrition and Bromatology, Faculty of Chemistry, Universidade de Santiago de Compostela, Avenida das Ciencias, s/n., 15782 Santiago de Compostela, Spain
| | - Antonio Moreda-Piñeiro
- Trace Elements, Spectroscopy and Speciation Group (GETEE), Strategic Grouping in Materials (AEMAT), Department of Analytical Chemistry, Nutrition and Bromatology, Faculty of Chemistry, Universidade de Santiago de Compostela, Avenida das Ciencias, s/n., 15782 Santiago de Compostela, Spain.
| |
Collapse
|
7
|
Deng J, Ding QM, Jia MX, Li W, Zuberi Z, Wang JH, Ren JL, Fu D, Zeng XX, Luo JF. Biosafety risk assessment of nanoparticles: Evidence from food case studies. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2021; 275:116662. [PMID: 33582638 DOI: 10.1016/j.envpol.2021.116662] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/10/2020] [Revised: 12/21/2020] [Accepted: 02/02/2021] [Indexed: 05/04/2023]
Abstract
Nanotechnology provides a wide range of benefits in the food industry in improving food tastes, textures, sensations, quality, shelf life, and food safety. Recently, potential adverse effects such as toxicity and safety concerns have been associated with the increasing use of engineered nanoparticles in food industry. Additionally, very limited information is known concerning the behavior, properties and effects of food nano-materials in the gastrointestinal tract. There is explores the current advances and provides insights of the potential risks of nanoparticles in the food industry. Specifically, characteristics of food nanoparticles and their absorption in the gastrointestinal tract, the effects of food nanoparticles against the gastrointestinal microflora, and the potential toxicity mechanisms in different organs and body systems are discussed. This review would provide references for further investigation of nano-materials toxicity effect in foods and their molecular mechanisms. It will help to develop safer foods and expand nano-materials applications in safe manner.
Collapse
Affiliation(s)
- Jing Deng
- National Engineering Laboratory for Deep Process of Rice and Byproducts, Hunan Province Key Laboratory of Edible Forestry Resources Safety and Processing Utilization, Hunan Key Laboratory of Processed Food for Special Medical Purpose, College of Food Science and Engineering, Central South University of Forestry and Technology, Changsha, 410004, Hunan, China; College of Packaging and Material Engineering, College of Life Sciences and Chemistry, Hunan University of Technology, Zhuzhou, 412007, China
| | - Quan Ming Ding
- College of Packaging and Material Engineering, College of Life Sciences and Chemistry, Hunan University of Technology, Zhuzhou, 412007, China
| | - Ming Xi Jia
- National Engineering Laboratory for Deep Process of Rice and Byproducts, Hunan Province Key Laboratory of Edible Forestry Resources Safety and Processing Utilization, Hunan Key Laboratory of Processed Food for Special Medical Purpose, College of Food Science and Engineering, Central South University of Forestry and Technology, Changsha, 410004, Hunan, China
| | - Wen Li
- National Engineering Laboratory for Deep Process of Rice and Byproducts, Hunan Province Key Laboratory of Edible Forestry Resources Safety and Processing Utilization, Hunan Key Laboratory of Processed Food for Special Medical Purpose, College of Food Science and Engineering, Central South University of Forestry and Technology, Changsha, 410004, Hunan, China; College of Packaging and Material Engineering, College of Life Sciences and Chemistry, Hunan University of Technology, Zhuzhou, 412007, China.
| | - Zavuga Zuberi
- Department of Science and Laboratory Technology, Dar Es Salaam Institute of Technology, P.O. Box 2958, Dar Es Salaam, Tanzania
| | - Jian Hui Wang
- School of Chemistry and Food Engineering, Changsha University of Science and Technology, Changsha, Hunan, 410114, China
| | - Jia Li Ren
- National Engineering Laboratory for Deep Process of Rice and Byproducts, Hunan Province Key Laboratory of Edible Forestry Resources Safety and Processing Utilization, Hunan Key Laboratory of Processed Food for Special Medical Purpose, College of Food Science and Engineering, Central South University of Forestry and Technology, Changsha, 410004, Hunan, China
| | - Da Fu
- Central Laboratory for Medical Research, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, 200072, China
| | - Xiao Xi Zeng
- College of Packaging and Material Engineering, College of Life Sciences and Chemistry, Hunan University of Technology, Zhuzhou, 412007, China
| | - Jun Fei Luo
- National Engineering Laboratory for Deep Process of Rice and Byproducts, Hunan Province Key Laboratory of Edible Forestry Resources Safety and Processing Utilization, Hunan Key Laboratory of Processed Food for Special Medical Purpose, College of Food Science and Engineering, Central South University of Forestry and Technology, Changsha, 410004, Hunan, China
| |
Collapse
|
8
|
Protective Effect of Lactobacillus rhamnosus GG on TiO 2 Nanoparticles-Induced Oxidative Stress Damage in the Liver of Young Rats. NANOMATERIALS 2021; 11:nano11030803. [PMID: 33801059 PMCID: PMC8004042 DOI: 10.3390/nano11030803] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/24/2021] [Revised: 03/13/2021] [Accepted: 03/18/2021] [Indexed: 12/17/2022]
Abstract
The potential toxicity of titanium dioxide nanoparticles (TiO2 NPs) to mammals has become a widespread concern. Young individuals exposed to TiO2 NPs have a higher risk than adults. In this study, the protective effects of Lactobacillus rhamnosus GG (LGG) on liver toxicity in young rats induced by TiO2 NPs were explored. Results show that the four-week-old rats that underwent LGG after the oral intake of TiO2 NPs could prevent weight loss, reduce hematological indicators (WBC and NEUT) and serum biochemical indicators (AST, ALT, AST/ALT, and ALP). Moreover, it alleviated the pathological damage of the liver (as indicated by the disordered hepatocytes, more eosinophilic, ballooning degeneration, and accompany with blood cells), but it did not reduce the Ti contents in the liver. In addition, RT-qPCR results indicated that LGG restored the expression of anti-oxidative stress-related genes, such as SOD1, SOD2, CAT, HO-1, GSH, GCLC, and GCLM in the liver. In summary, the hepatotoxicity of TiO2 NPs in young rats is closely related to oxidative stress, and the antioxidant effect of LGG might protect the harmful effects caused by TiO2 NPs.
Collapse
|
9
|
TiO2-Graphene Quantum Dots Nanocomposites for Photocatalysis in Energy and Biomedical Applications. Catalysts 2021. [DOI: 10.3390/catal11030319] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
The focus of current research in material science has shifted from “less efficient” single-component nanomaterials to the superior-performance, next-generation, multifunctional nanocomposites. TiO2 is a widely used benchmark photocatalyst with unique physicochemical properties. However, the large bandgap and massive recombination of photogenerated charge carriers limit its overall photocatalytic efficiency. When TiO2 nanoparticles are modified with graphene quantum dots (GQDs), some significant improvements can be achieved in terms of (i) broadening the light absorption wavelengths, (ii) design of active reaction sites, and (iii) control of the electron-hole (e−-h+) recombination. Accordingly, TiO2-GQDs nanocomposites exhibit promising multifunctionalities in a wide range of fields including, but not limited to, energy, biomedical aids, electronics, and flexible wearable sensors. This review presents some important aspects of TiO2-GQDs nanocomposites as photocatalysts in energy and biomedical applications. These include: (1) structural formulations and synthesis methods of TiO2-GQDs nanocomposites; (2) discourse about the mechanism behind the overall higher photoactivities of these nanocomposites; (3) various characterization techniques which can be used to judge the photocatalytic performance of these nanocomposites, and (4) the application of these nanocomposites in biomedical and energy conversion devices. Although some objectives have been achieved, new challenges still exist and hinder the widespread application of these nanocomposites. These challenges are briefly discussed in the Future Scope section of this review.
Collapse
|
10
|
Skowron K, Wałecka-Zacharska E, Grudlewska K, Kwiecińska-Piróg J, Wiktorczyk N, Kowalska M, Paluszak Z, Kosek-Paszkowska K, Brożek K, Korkus J, Gospodarek-Komkowska E. Effect of Selected Environmental Factors on the Microbicidal Effectiveness of Radiant Catalytic Ionization. Front Microbiol 2020; 10:3057. [PMID: 32038531 PMCID: PMC6989485 DOI: 10.3389/fmicb.2019.03057] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2019] [Accepted: 12/18/2019] [Indexed: 01/12/2023] Open
Abstract
The aim of this study was the assessment of the effect of time exposure, temperature, distance, and organic contaminants on radiant catalytic ionization (RCI) microbicidal effectiveness. The number of all examined bacteria decreased together with time exposure of RCI. The lowest recovery was obtained, both from the rubber surface (6.36 log CFU × cm-2) and steel (6.04 log CFU × cm-2) in the case of Escherichia coli O157:H7. On the other hand, Staphylococcus aureus was isolated in the largest number (rubber: 7.88 log CFU × cm-2, steel: 7.79 log CFU × cm-2). Among the tested environmental conditions, the greatest bacterial population was re-isolated at 4°C (distance: 0.5 m, time: 24 h), whereas the lowest population was found at a distance of 0.5 m (temperature: 20°C, time: 24 h) and on surfaces without contamination. In the samples treated with RCI, the bacterial population was the lowest on non-contaminated surfaces, ranging from 3.76 log CFU × cm-2 (E. coli O157:H7) to 5.58 log CFU × cm-2 (S. aureus) for the rubber, and from 3.26 log CFU × cm-2 (E. coli O157:H7) to 5.20 log CFU × cm-2 (S. aureus) for the stainless steel. The highest bacteria number was isolated from surfaces contaminated with meat and fish pulp. The lowest bacterial reduction caused by RCI was found in the case of rubber contaminated with meat-fish pulp (24 h, 0.5 m, 20°C). The reduction rate was equal to 0.89 log CFU × cm-2 for S. aureus, 1.17 log CFU × cm-2 for Listeria monocytogenes, 1.43 log CFU × cm-2 for Salmonella Enteritidis and 1.61 log CFU × cm-2 for E. coli O157:H7. In turn, the greatest bacterial reduction was found in the case of non-contaminated steel (24 h, 0.5 m, 37°C). The reduction rate was equal to 4.52 log CFU × cm-2 for L. monocytogenes, 3.61 log CFU × cm-2 for S. Enteritidis, 2.98 log CFU × cm-2 for E. coli O157:H7 and 2.77 log CFU × cm-2 for S. aureus. RCI allows the inactivation of pathogens from stainless steel and rubber surfaces. Its efficacy is species-dependent and affected by environmental factors.
Collapse
Affiliation(s)
- Krzysztof Skowron
- Department of Microbiology, Collegium Medicum of L. Rydygier in Bydgoszcz, Nicolaus Copernicus University in Toruñ, Bydgoszcz, Poland
| | - Ewa Wałecka-Zacharska
- Department of Food Hygiene and Consumer Health, Wrocław University of Environmental and Life Sciences, Wrocław, Poland
| | - Katarzyna Grudlewska
- Department of Microbiology, Collegium Medicum of L. Rydygier in Bydgoszcz, Nicolaus Copernicus University in Toruñ, Bydgoszcz, Poland
| | - Joanna Kwiecińska-Piróg
- Department of Microbiology, Collegium Medicum of L. Rydygier in Bydgoszcz, Nicolaus Copernicus University in Toruñ, Bydgoszcz, Poland
| | - Natalia Wiktorczyk
- Department of Microbiology, Collegium Medicum of L. Rydygier in Bydgoszcz, Nicolaus Copernicus University in Toruñ, Bydgoszcz, Poland
| | - Maria Kowalska
- Department of Food Analytics and Environmental Protection, Faculty of Chemical Technology and Engineering, UTP University of Sciences and Technology in Bydgoszcz, Bydgoszcz, Poland
| | - Zbigniew Paluszak
- Department of Microbiology and Food Technology, UTP University of Sciences and Technology in Bydgoszcz, Bydgoszcz, Poland
| | - Katarzyna Kosek-Paszkowska
- Department of Food Hygiene and Consumer Health, Wrocław University of Environmental and Life Sciences, Wrocław, Poland
| | - Klaudia Brożek
- Department of Microbiology, Collegium Medicum of L. Rydygier in Bydgoszcz, Nicolaus Copernicus University in Toruñ, Bydgoszcz, Poland
| | - Jakub Korkus
- Department of Food Hygiene and Consumer Health, Wrocław University of Environmental and Life Sciences, Wrocław, Poland
| | - Eugenia Gospodarek-Komkowska
- Department of Microbiology, Collegium Medicum of L. Rydygier in Bydgoszcz, Nicolaus Copernicus University in Toruñ, Bydgoszcz, Poland
| |
Collapse
|
11
|
Xie J, Hung YC. Methodology to evaluate the antimicrobial effectiveness of UV-activated TiO2 nanoparticle-embedded cellulose acetate film. Food Control 2019. [DOI: 10.1016/j.foodcont.2019.06.016] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
|
12
|
Ripolles-Avila C, Martinez-Garcia M, Hascoët AS, Rodríguez-Jerez JJ. Bactericidal efficacy of UV activated TiO2 nanoparticles against Gram-positive and Gram-negative bacteria on suspension. CYTA - JOURNAL OF FOOD 2019. [DOI: 10.1080/19476337.2019.1590461] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Carolina Ripolles-Avila
- Hygiene and Food Inspection Unit, Department of Food and Animal Sciences, Facultat de Veterinària, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Maria Martinez-Garcia
- Hygiene and Food Inspection Unit, Department of Food and Animal Sciences, Facultat de Veterinària, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Anne-Sophie Hascoët
- Hygiene and Food Inspection Unit, Department of Food and Animal Sciences, Facultat de Veterinària, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - José Juan Rodríguez-Jerez
- Hygiene and Food Inspection Unit, Department of Food and Animal Sciences, Facultat de Veterinària, Universitat Autònoma de Barcelona, Barcelona, Spain
| |
Collapse
|
13
|
Xie J, Hung YC. UV-A activated TiO2 embedded biodegradable polymer film for antimicrobial food packaging application. Lebensm Wiss Technol 2018. [DOI: 10.1016/j.lwt.2018.05.050] [Citation(s) in RCA: 59] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
|
14
|
Ramesh T, Yaparatne S, Tripp CP, Nayak B, Amirbahman A. Ultraviolet Light-Assisted Photocatalytic Disinfection of Escherichia coli and Its Effects on the Quality Attributes of White Grape Juice. FOOD BIOPROCESS TECH 2018. [DOI: 10.1007/s11947-018-2182-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
|
15
|
Yemmireddy VK, Hung YC. Photocatalytic TiO2 coating of plastic cutting board to prevent microbial cross-contamination. Food Control 2017. [DOI: 10.1016/j.foodcont.2017.01.025] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
|
16
|
Yemmireddy VK, Hung YC. Using Photocatalyst Metal Oxides as Antimicrobial Surface Coatings to Ensure Food Safety-Opportunities and Challenges. Compr Rev Food Sci Food Saf 2017; 16:617-631. [PMID: 33371565 DOI: 10.1111/1541-4337.12267] [Citation(s) in RCA: 87] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2017] [Revised: 03/30/2017] [Accepted: 03/31/2017] [Indexed: 11/30/2022]
Abstract
Cross-contamination of foods with pathogenic microorganisms such as bacteria, viruses, and parasites may occur at any point in the farm to fork continuum. Food contact and nonfood contact surfaces are the most frequent source of microbial cross-contamination. In the wake of new and emerging food safety challenges, including antibiotic-resistant human pathogens, conventional sanitation and disinfection practices may not be sufficient to ensure safe food processing, proper preparation, and also not be environmentally friendly. Nanotechnology-enabled novel food safety interventions have a great potential to mitigate the risk of microbial cross-contamination in the food chain. Especially engineered nanoparticles (ENPs) are increasingly finding novel applications as antimicrobial agents. Among various ENPs, photocatalyst metal oxides have shown great promise as effective nontargeted disinfectants over a wide range of microorganisms. The present review provides an overview of antimicrobial properties of various photocatalyst metal oxides and their potential applications as surface coatings. Further, this review discusses the most common approaches to developing antimicrobial coatings, methods to characterize, test, and evaluate antimicrobial efficacy as well as the physical stability of the coatings. Finally, regulations and challenges concerning the use of these novel photocatalytic antimicrobial coatings are also discussed.
Collapse
Affiliation(s)
- Veerachandra K Yemmireddy
- Dept. of Food Science and Technology, Univ. of Georgia, 1109 Experiment Street, Griffin, Ga., 30223-1797, U.S.A
| | - Yen-Con Hung
- Dept. of Food Science and Technology, Univ. of Georgia, 1109 Experiment Street, Griffin, Ga., 30223-1797, U.S.A
| |
Collapse
|
17
|
Liu W, Tian M, Kong Y, Lu J, Li N, Han J. Multilayered vitamin C nanoliposomes by self-assembly of alginate and chitosan: Long-term stability and feasibility application in mandarin juice. Lebensm Wiss Technol 2017. [DOI: 10.1016/j.lwt.2016.10.010] [Citation(s) in RCA: 59] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
|
18
|
Ramesh T, Nayak B, Amirbahman A, Tripp CP, Mukhopadhyay S. Application of ultraviolet light assisted titanium dioxide photocatalysis for food safety: A review. INNOV FOOD SCI EMERG 2016. [DOI: 10.1016/j.ifset.2016.09.015] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
|
19
|
Peter A, Mihaly-Cozmuta L, Mihaly-Cozmuta A, Nicula C, Ziemkowska W, Basiak D, Danciu V, Vulpoi A, Baia L, Falup A, Craciun G, Ciric A, Begea M, Kiss C, Vatuiu D. Changes in the microbiological and chemical characteristics of white bread during storage in paper packages modified with Ag/TiO2–SiO2, Ag/N–TiO2 or Au/TiO2. Food Chem 2016; 197:790-8. [DOI: 10.1016/j.foodchem.2015.11.048] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2015] [Revised: 11/11/2015] [Accepted: 11/11/2015] [Indexed: 10/22/2022]
|
20
|
Rehman FU, Zhao C, Jiang H, Wang X. Biomedical applications of nano-titania in theranostics and photodynamic therapy. Biomater Sci 2016; 4:40-54. [DOI: 10.1039/c5bm00332f] [Citation(s) in RCA: 97] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Titanium dioxide (TiO2) is one of the most abundantly used nanomaterials for human life. It is used in sunscreen, photovoltaic devices, biomedical applications and as a food additive and environmental scavenger.
Collapse
Affiliation(s)
- F. U. Rehman
- State Key Laboratory of Bioelectronics
- School of Biological Science and Medical Engineering
- Southeast University
- Nanjing 210096
- China
| | - C. Zhao
- State Key Laboratory of Bioelectronics
- School of Biological Science and Medical Engineering
- Southeast University
- Nanjing 210096
- China
| | - H. Jiang
- State Key Laboratory of Bioelectronics
- School of Biological Science and Medical Engineering
- Southeast University
- Nanjing 210096
- China
| | - X. Wang
- State Key Laboratory of Bioelectronics
- School of Biological Science and Medical Engineering
- Southeast University
- Nanjing 210096
- China
| |
Collapse
|
21
|
Yemmireddy VK, Hung YC. Effect of food processing organic matter on photocatalytic bactericidal activity of titanium dioxide (TiO2). Int J Food Microbiol 2015; 204:75-80. [PMID: 25863338 DOI: 10.1016/j.ijfoodmicro.2015.03.019] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2015] [Revised: 03/16/2015] [Accepted: 03/19/2015] [Indexed: 10/23/2022]
Abstract
The purpose of this study was to determine the effect of food processing organic matter on photocatalytic bactericidal activity of titanium dioxide (TiO2) nanoparticles (NPs). Produce and meat processing wash solutions were prepared using romaine lettuce and ground beef samples. Physico-chemical properties such as pH, turbidity, chemical oxygen demand (COD), total phenolics (for produce) and protein (for meat) content of the extracts were determined using standard procedures. The photocatalytic bactericidal activity of TiO2 (1 mg/mL) in suspension with or without organic matter against Escherichia coli O157:H7 (5-strain) was determined over a period of 3h. Increasing the concentration of organic matter (either produce or meat) from 0% to 100% resulted in 85% decrease in TiO2 microbicidal efficacy. 'Turbidity, total phenolics, and protein contents in wash solutions had significant effect on the log reduction. Increasing the total phenolics content in produce washes from 20 to 114 mg/L decreased the log reduction from 2.7 to 0.38 CFU/mL, whereas increasing the protein content in meat washes from 0.12 to 1.61 mg/L decreased the log reduction from and 5.74 to 0.87 CFU/mL. Also, a linear correlation was observed between COD and total phenolics as well as COD and protein contents. While classical disinfection kinetic models failed to predict, an empirical equation in the form of "Y=me(nX)" (where Y is log reduction, X is COD, and m and n are reaction rate constants) predicted the disinfection kinetics of TiO2 in the presence of organic matter (R(2)=94.4). This study successfully identified an empirical model with COD as a predictor variable to predict the bactericidal efficacy of TiO2 when used in food processing environment.
Collapse
Affiliation(s)
- Veerachandra K Yemmireddy
- Department of Food Science and Technology, University of Georgia, 1109 Experiment Street, Griffin, GA 30223-1797, USA.
| | - Yen-Con Hung
- Department of Food Science and Technology, University of Georgia, 1109 Experiment Street, Griffin, GA 30223-1797, USA.
| |
Collapse
|