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Sree BK, Kumar N, Singh S. Reproductive toxicity perspectives of nanoparticles: an update. Toxicol Res (Camb) 2024; 13:tfae077. [PMID: 38939724 PMCID: PMC11200103 DOI: 10.1093/toxres/tfae077] [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: 12/14/2023] [Revised: 04/08/2024] [Accepted: 05/08/2024] [Indexed: 06/29/2024] Open
Abstract
INTRODUCTION The rapid development of nanotechnologies with their widespread prosperities has advanced concerns regarding potential health hazards of the Nanoparticles. RESULTS Nanoparticles are currently present in several consumer products, including medications, food, textiles, sports equipment, and electrical components. Despite the advantages of Nanoparticles, their potential toxicity has negative impact on human health, particularly on reproductive health. CONCLUSIONS The impact of various NPs on reproductive system function is yet to be determined. Additional research is required to study the potential toxicity of various Nanoparticles on reproductive health. The primary objective of this review is to unravel the toxic effects of different Nanoparticles on the human reproductive functions and recent investigations on the reproductive toxicity of Nanoparticles both in vitro and in vivo.
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Affiliation(s)
- B Kavya Sree
- Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research, Export Promotions Industrial Park (EPIP), Industrial Area Hajipur, Vaishali, Hajipur, Bihar 844102, India
| | - Nitesh Kumar
- Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research, Export Promotions Industrial Park (EPIP), Industrial Area Hajipur, Vaishali, Hajipur, Bihar 844102, India
| | - Sanjiv Singh
- Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research, Export Promotions Industrial Park (EPIP), Industrial Area Hajipur, Vaishali, Hajipur, Bihar 844102, India
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AFŞAR O, OLTULU Ç. Evaluation of the cytotoxic effect of titanium dioxide nanoparticles in human embryonic lung cells. Turk J Med Sci 2023; 53:1648-1657. [PMID: 38813501 PMCID: PMC10760577 DOI: 10.55730/1300-0144.5733] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2023] [Revised: 12/12/2023] [Accepted: 10/12/2023] [Indexed: 05/31/2024] Open
Abstract
Background/aim Titanium dioxide nanoparticles are widely used in a variety of products, including sunscreens, paints, and ceramics. However, their increasing use has raised concerns about their potential health risks. Titanium dioxide nanoparticles have been shown to have the ability to enter the bloodstream and accumulate in various tissues, reaching the fetus via the placenta. The aim of this study was to investigate the cytotoxic effects of titanium dioxide nanoparticles on a human embryonic lung cell line (HEL 299/An1) and the formation of oxidative DNA damage. Materials and methods The cytotoxic effects of brookite-based titanium dioxide nanoparticles (<100 nm) were assessed using the 3-(4,5-dimethyldiazol-2-yl)-2,5 diphenyl tetrazolium bromide (MTT) assay for 24 and 48 h. Cell titanium levels were determined using inductively coupled plasma mass spectrometry. Oxidative DNA damage was assessed by measuring the levels of 8-hydroxy-2-deoxyguanosine (8-OHdG) as a biomarker. Results Titanium dioxide nanoparticles caused dose-dependent cytotoxicity in HEL 299/An1 cells. The IC50 values were 25.93 μM and 0.054 μM after 24 h and 48 h of exposure, respectively. Cell titanium levels were found to be 25,967 ppb after 24 h and 210,353 ppb after 48 h (p < 0.01). 8-OHdG was detected at 32.96 ng/mL after 24 h of exposure and 17.89 ng/mL after 48 h of exposure. Conclusion In our study, it was shown that titanium nanoparticles caused dose-dependent cytotoxicity and oxidative DNA damage in human embryonic lung cells. The nanoparticles also accumulated in cells and were taken up in higher amounts after 48 h of exposure. These findings suggest that titanium dioxide nanoparticles may pose a health risk, especially for pregnant women who may not be aware of their pregnancy. Therefore, it is important to take preventive measures to reduce exposure to these nanoparticles.
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Affiliation(s)
- Olkan AFŞAR
- Department of Pharmaceutical Nanotechnology, Institute of Health Sciences, Trakya University, Edirne,
Turkiye
| | - Çağatay OLTULU
- Department of Pharmaceutical Toxicology, Faculty of Pharmacy, Trakya University, Edirne,
Turkiye
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Ali MK, Javaid S, Afzal H, Zafar I, Fayyaz K, Ain Q, Rather MA, Hossain MJ, Rashid S, Khan KA, Sharma R. Exploring the multifunctional roles of quantum dots for unlocking the future of biology and medicine. ENVIRONMENTAL RESEARCH 2023; 232:116290. [PMID: 37295589 DOI: 10.1016/j.envres.2023.116290] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/24/2023] [Revised: 05/28/2023] [Accepted: 05/30/2023] [Indexed: 06/12/2023]
Abstract
With recent advancements in nanomedicines and their associated research with biological fields, their translation into clinically-applicable products is still below promises. Quantum dots (QDs) have received immense research attention and investment in the four decades since their discovery. We explored the extensive biomedical applications of QDs, viz. Bio-imaging, drug research, drug delivery, immune assays, biosensors, gene therapy, diagnostics, their toxic effects, and bio-compatibility. We unravelled the possibility of using emerging data-driven methodologies (bigdata, artificial intelligence, machine learning, high-throughput experimentation, computational automation) as excellent sources for time, space, and complexity optimization. We also discussed ongoing clinical trials, related challenges, and the technical aspects that should be considered to improve the clinical fate of QDs and promising future research directions.
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Affiliation(s)
- Muhammad Kashif Ali
- Deparment of Physiology, Rashid Latif Medical College, Lahore, Punjab, 54700, Pakistan.
| | - Saher Javaid
- KAM School of Life Sciences, Forman Christian College (a Chartered University) Lahore, Punjab, Pakistan.
| | - Haseeb Afzal
- Department of ENT, Ameer Ud Din Medical College, Lahore, Punjab, 54700, Pakistan.
| | - Imran Zafar
- Department of Bioinformatics and Computational Biology, Virtual University, Punjab, 54700, Pakistan.
| | - Kompal Fayyaz
- Department of National Centre for Bioinformatics, Quaid-I-Azam University, Islamabad, 45320, Pakistan.
| | - Quratul Ain
- Department of Chemistry, Government College Women University Faisalabad (GCWUF), Punjab, 54700, Pakistan.
| | - Mohd Ashraf Rather
- Division of Fish Genetics and Biotechnology, Faculty of Fisheries, Rangil- Gandarbal (SKAUST-K), India.
| | - Md Jamal Hossain
- Department of Pharmacy, State University of Bangladesh, 77 Satmasjid Road, Dhanmondi, Dhaka, 1205, Bangladesh.
| | - Summya Rashid
- Department of Pharmacology & Toxicology, College of Pharmacy, Prince Sattam Bin Abdulaziz University, P.O. Box 173, Al-Kharj, 11942, Saudi Arabia.
| | - Khalid Ali Khan
- Unit of Bee Research and Honey Production, Research Center for Advanced Materials Science (RCAMS), King Khalid University, P.O. Box 9004, Abha, 61413, Saudi Arabia; Applied College, King Khalid University, P. O. Box 9004, Abha, 61413, Saudi Arabia.
| | - Rohit Sharma
- Department of Rasa Shastra and Bhaishajya Kalpana, Faculty of Ayurveda, Institute of Medical Sciences, Banaras Hindu University, Varanasi, 221005, Uttar Pradesh, India.
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Li J, Dong J, Huang Y, Su J, Xie Y, Wu Y, Tang W, Li Y, Huang W, Chen C. Aggregation Kinetics of TiO 2 Nanoparticles in Human and Artificial Sweat Solutions: Effects of Particle Properties and Sweat Constituents. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2022; 56:17153-17165. [PMID: 36242560 DOI: 10.1021/acs.est.2c05237] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Dermal penetration potentials of titanium dioxide nanoparticles (TiO2 NPs) may be affected by aggregation upon contact with sweat. This study investigated the aggregation kinetics of three TiO2 NPs in thirty human sweat samples and four artificial sweat standards. Effects of particle concentration, sweat type, and inorganic (sodium chloride, disodium hydrogen phosphate, and sodium dihydrogen phosphate) and organic (l-histidine, lactic acid, and urea) constituents were examined. Three TiO2 NPs remained colloidally stable in >20/30 human sweat samples and showed significant negative correlations (P < 0.01) between aggregation rates and |zeta potentials|. They aggregated rapidly over 20 min to >750 nm in three artificial sweat standards, while remained more stable in the International-Standard-Organization-pH-5.5 standard. Aggregation behaviors of three TiO2 NPs mostly followed the Derjaguin-Landau-Verwey-Overbeek (DLVO) theory, allowing for determining their critical coagulation concentrations in inorganic constituents (15-491 mM) and Hamaker constants (3.3-7.9 × 10-21 J). Higher concentrations of particles, inorganic constituents, and l-histidine destabilized three TiO2 NPs, whereas urea inhibited aggregation. Three TiO2 NPs adsorbed organic sweat constituents via complexation with amino or carboxyl groups, with isotherms following the Langmuir model. Correlation analyses further suggested that the adsorbed organic constituents may stabilize three TiO2 NPs against aggregation in sweat by steric hindrance.
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Affiliation(s)
- Jing Li
- College of Natural Resources and Environment, Guangdong Provincial Key Laboratory of Agricultural & Rural Pollution Abatement and Environmental Safety, South China Agricultural University, 483 Wushan Road, Guangzhou, Guangdong 510642, China
- School of Environment, Beijing Jiaotong University, 3 Shangyuancun, Haidian District, Beijing 100044, China
| | - Jiawei Dong
- College of Natural Resources and Environment, Guangdong Provincial Key Laboratory of Agricultural & Rural Pollution Abatement and Environmental Safety, South China Agricultural University, 483 Wushan Road, Guangzhou, Guangdong 510642, China
| | - Yanshan Huang
- College of Natural Resources and Environment, Guangdong Provincial Key Laboratory of Agricultural & Rural Pollution Abatement and Environmental Safety, South China Agricultural University, 483 Wushan Road, Guangzhou, Guangdong 510642, China
| | - Jiana Su
- College of Natural Resources and Environment, Guangdong Provincial Key Laboratory of Agricultural & Rural Pollution Abatement and Environmental Safety, South China Agricultural University, 483 Wushan Road, Guangzhou, Guangdong 510642, China
| | - Yu Xie
- College of Natural Resources and Environment, Guangdong Provincial Key Laboratory of Agricultural & Rural Pollution Abatement and Environmental Safety, South China Agricultural University, 483 Wushan Road, Guangzhou, Guangdong 510642, China
- Department of Civil and Environmental Engineering, College of Design and Engineering, National University of Singapore, 1 Engineering Drive 2, Singapore 117576, Singapore
| | - Yundang Wu
- National-Regional Joint Engineering Research Center for Soil Pollution Control and Remediation in South China, Guangdong Key Laboratory of Integrated Agro-environmental Pollution Control and Management, Institute of Eco-environmental and Soil Sciences, Guangdong Academy of Sciences, Guangzhou 510650, China
| | - Wei Tang
- College of Natural Resources and Environment, Guangdong Provincial Key Laboratory of Agricultural & Rural Pollution Abatement and Environmental Safety, South China Agricultural University, 483 Wushan Road, Guangzhou, Guangdong 510642, China
| | - Yongtao Li
- College of Natural Resources and Environment, Guangdong Provincial Key Laboratory of Agricultural & Rural Pollution Abatement and Environmental Safety, South China Agricultural University, 483 Wushan Road, Guangzhou, Guangdong 510642, China
| | - Weilin Huang
- Department of Environmental Sciences, Rutgers, The State University of New Jersey, 14 College Farm Road, New Brunswick, New Jersey 08901, United States
| | - Chengyu Chen
- College of Natural Resources and Environment, Guangdong Provincial Key Laboratory of Agricultural & Rural Pollution Abatement and Environmental Safety, South China Agricultural University, 483 Wushan Road, Guangzhou, Guangdong 510642, China
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Jamshidinia N, Mohammadipanah F. Nanomaterial-Augmented Formulation of Disinfectants and Antiseptics in Controlling SARS CoV-2. FOOD AND ENVIRONMENTAL VIROLOGY 2022; 14:105-119. [PMID: 35266117 PMCID: PMC8906532 DOI: 10.1007/s12560-022-09517-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/28/2021] [Accepted: 02/22/2022] [Indexed: 05/24/2023]
Abstract
The worldwide COVID-19 pandemic has brought significant consideration toward innovative strategies for overcoming the viral spread. Nanotechnology will change our lives in several forms as its uses span from electronics to pharmaceutical procedures. The use of nanoparticles provides a possibility to promote new antiviral treatments with a low possibility of increasing drug resistance compared to typical chemical-based antiviral treatments. Since the long-term usage of disinfectants and antiseptics at high concentrations has deleterious impacts on well-being and the environment, this review was intended to discuss the antiviral activity of disinfectants and antiseptics required for their activity against respiratory viruses especially SARS-CoV-2. It could improve the inhibition of viral penetration into cells, solvation of the lipid bilayer envelope, and ROS production, therefore enhancing the effect of disinfectants. However, significant concerns about nanomaterial's hazardous effects on individuals and the environment are increasing as nanotechnology flourishes. In this review, we first discuss the significant and essential types of nanomaterials, especially silver and copper, that could be used as antiviral agents and their viral entry mechanisms into host cells. Further, we consider the toxicity on health, and environmental concerns of nanoparticles. Eventually, we present our outlook on the fate of nanomaterials toward viral diseases.
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Affiliation(s)
- Niloofar Jamshidinia
- Pharmaceutical Biotechnology Lab, Department of Microbial Biotechnology, School of Biology and Center of Excellence in Phylogeny of Living Organisms, College of Science, University of Tehran, 14155-6455, Tehran, Iran
| | - Fatemeh Mohammadipanah
- Pharmaceutical Biotechnology Lab, Department of Microbial Biotechnology, School of Biology and Center of Excellence in Phylogeny of Living Organisms, College of Science, University of Tehran, 14155-6455, Tehran, Iran.
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Sarikhani M, Vaghefi Moghaddam S, Firouzamandi M, Hejazy M, Rahimi B, Moeini H, Alizadeh E. Harnessing rat derived model cells to assess the toxicity of TiO 2 nanoparticles. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2022; 33:41. [PMID: 35507219 PMCID: PMC9068637 DOI: 10.1007/s10856-022-06662-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/23/2021] [Accepted: 04/08/2022] [Indexed: 05/11/2023]
Abstract
Until now, a few studies have been conducted on the destructive effects of TiO2 NPs in living organisms, and studies on the toxicity of TiO2 NPs are still in the beginning phases. Because of the widespread use of TiO2 NPs in all areas of human life, it is essential to study their profound and fundamental toxic effects on each organ and body cell. Herein, we evaluate the effect of exposure to TiO2 NPs on in vitro models derived from the rat bone marrow and adipose tissues. Exposure to TiO2 NPs at 100 and 200 μg/ml exhibited cytotoxicity for the rat bone marrow mesenchymal stem cells (rBMSCs) and rat adipose mesenchymal stem cells (rATSC), respectively. Additionally, reduced rBMSCs and rATSCs frequencies in the S phase of the cell cycle. Moreover, TiO2 NPs enhanced the activity of cellular senescence-associated β-galactosidase in both model cells. Significantly higher relative expression of aging-related genes P53 and NF-kB (p < 0.05) and lower expression levels of anti-aging-related genes Nanog and SIRT1 were found in the treated cells (p < 0.05). Colony-forming and DAPI staining showed the reduction of cell growth and DNA damage in both rBMSCs and rATSCs. Our findings along with other similar findings showed that TiO2 NPs probably have negative effects on the cell growth, prompt the cells for entry into proliferation stop, DNA damage, and trigger the aging process. Graphical abstract.
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Affiliation(s)
- Manizheh Sarikhani
- Department of Medical Biotechnology, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
- Biotechnology Section, Department of Pathobiology, Faculty of Veterinary Medicine, University of Tabriz, Tabriz, Iran
| | - Sevil Vaghefi Moghaddam
- Department of Medical Biotechnology, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Masoumeh Firouzamandi
- Biotechnology Section, Department of Pathobiology, Faculty of Veterinary Medicine, University of Tabriz, Tabriz, Iran
| | - Marzie Hejazy
- Toxicology Section, Department of Basic Science, Faculty of Veterinary Medicine, University of Tabriz, Tabriz, Iran
| | - Bahareh Rahimi
- Department of Medical Biotechnology, Faculty of Allied Medical Sciences, Iran University of Medical Sciences, Tehran, Iran
| | - Hassan Moeini
- Institute of Virology, Faculty of Medicine, Technische Universität of München, Munich, Germany
| | - Effat Alizadeh
- Department of Medical Biotechnology, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran.
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The Use of Calcium Phosphates in Cosmetics, State of the Art and Future Perspectives. MATERIALS 2021; 14:ma14216398. [PMID: 34771927 PMCID: PMC8585361 DOI: 10.3390/ma14216398] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/01/2021] [Revised: 10/20/2021] [Accepted: 10/21/2021] [Indexed: 12/20/2022]
Abstract
Calcium phosphates (CaPs) belong to a class of biomimetic materials widely employed for medical applications thanks to their excellent properties, such as biodegradability, biocompatibility and osteoinductivity. The recent trend in the cosmetics field of substituting potentially hazardous materials with natural, safe, and sustainable ingredients for the health of consumers and for the environment, as well as the progress in the materials science of academics and chemical industries, has opened new perspectives in the use of CaPs in this field. While several reviews have been focused on the applications of CaP-based materials in medicine, this is the first attempt to catalogue the properties and use of CaPs in cosmetics. In this review a brief introduction on the chemical and physical characteristics of the main CaP phases is given, followed by an up-to-date report of their use in cosmetics through a large literature survey of research papers and patents. The application of CaPs as agents in oral care, skin care, hair care, and odor control has been selected and extensively discussed, highlighting the correlation between the chemical, physical and toxicological properties of the materials with their final applications. Finally, perspectives on the main challenges that should be addressed by the scientific community and cosmetics companies to widen the application of CaPs in cosmetics are given.
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Kim SH, Park MK, Seol JK, Im JM, Park HS, Seo HS, Park HJ, Nah SS. Evaluation of potential eye or skin irritation/corrosion in rabbit exposed to TiO2 photocatalyst (GST). Environ Anal Health Toxicol 2021; 36:e2021022-0. [PMID: 34583464 PMCID: PMC8598404 DOI: 10.5620/eaht.2021022] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2020] [Accepted: 09/10/2021] [Indexed: 01/05/2023] Open
Abstract
TiO2 NPs photocatalyst is widely used in a variety of applications and products in the environmental and energy fields, including self-cleaning surfaces, air and water purification systems, sterilization, hydrogen evolution, and photoelectrochemical conversion. The possible biological and safety effects of TiO2 dermal exposure and absorption have not been well studied and more investigations on the potential health hazards of the TiO2 are needed. This study aimed to investigate potential effect of local lesions (eye and skin irritation/corrosion) for new TiO2 material powder, GST produced through sludge recycling of the sewage treatment plant in according to the OECD test guideline (TG 404, 405) and imaging evaluation (micro-computed tomography analysis), histopathology examination. Also, P-25, commercial photocatalyst was used to compare with GST. For the eye or skin irritation/corrosion test, the test substances (GST, P-25) showed no irritation/corrosion for local lesions and the GHS category was identified as a "No hazard class". The imaging analysis indicated that GST did not penetrate or distribute in the local lesions (eye, skin) and the treatment-related effect was not observed in histopathology. Therefore, the present study revealed that new TiO2 powder, GST was considered to be no potential effects (irritation/corrosion), penetration or distribution in the local lesions (eye, skin).
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Affiliation(s)
- Sang Ho Kim
- Healthcare Research Institute, Korea Testing and Research Institute (KTR), 12-63, Sandan-gil, Hwasun-eup, Hwasun-gun, Jeollanam-do, 58141,
Republic of Korea
| | - Myeong kyu Park
- Healthcare Research Institute, Korea Testing and Research Institute (KTR), 12-63, Sandan-gil, Hwasun-eup, Hwasun-gun, Jeollanam-do, 58141,
Republic of Korea
| | - Ja Kyung Seol
- Healthcare Research Institute, Korea Testing and Research Institute (KTR), 12-63, Sandan-gil, Hwasun-eup, Hwasun-gun, Jeollanam-do, 58141,
Republic of Korea
| | - Jae Min Im
- Healthcare Research Institute, Korea Testing and Research Institute (KTR), 12-63, Sandan-gil, Hwasun-eup, Hwasun-gun, Jeollanam-do, 58141,
Republic of Korea
| | - Hae Sung Park
- Healthcare Research Institute, Korea Testing and Research Institute (KTR), 12-63, Sandan-gil, Hwasun-eup, Hwasun-gun, Jeollanam-do, 58141,
Republic of Korea
| | - Heung Sik Seo
- Healthcare Research Institute, Korea Testing and Research Institute (KTR), 12-63, Sandan-gil, Hwasun-eup, Hwasun-gun, Jeollanam-do, 58141,
Republic of Korea
| | - Hee Ju Park
- Research Laboratory, Bentech Frontier Co. Ltd., Nanosandan-ro, Nam-myeon, Jangseong, Jeollanam-do, 57248,
Republic of Korea
| | - Sung Soon Nah
- Division of Environment & Health, Korea Testing & Research Institute, 98, Gyoyukwon-ro, Gwacheon-si, Gyeonggi-do, 13810,
Republic of Korea
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Barkhade T, Mahapatra SK, Banerjee I. A Protein and Membrane Integrity Study of TiO 2 Nanoparticles-Induced Mitochondrial Dysfunction and Prevention by Iron Incorporation. J Membr Biol 2021; 254:217-237. [PMID: 33786641 DOI: 10.1007/s00232-021-00177-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2020] [Accepted: 03/19/2021] [Indexed: 11/25/2022]
Abstract
The paper assessed the toxic effect of titanium dioxide (TiO2) nanoparticles (NPs) on isolated mitochondria and its dysfunction prevention after Iron (Fe) incorporation. TiO2 and Fe content TiO2 NPs were synthesized and characterized using XPS, PL spectroscopy, and TEM. The nanostructure interaction with isolated mitochondria was investigated using circular dichroism (CD) confocal microscopy, flow cytometry, atomic force microscopy (AFM), surface-enhanced Raman spectroscopy (SERS), and FT-IR spectroscopy via nonspecific pathway. Fe content TiO2 NPs helps to control the dissolution rate of parent nanomaterial of TiO2 on the mitochondrial membrane. Confocal micrographs and flow cytometry results confirmed that Rhodamine 123 dye intensity get increased after interaction with Fe content TiO2 NPs which states the integrity of the mitochondrial membrane. AFM results revealed that TiO2 induces the swelling of mitochondrial tubules and also impaired the mitochondrial structure, whereas Fe content TiO2 NPs interaction prevents the impairment of mitochondrial tubules. The denaturation of a membrane protein by TiO2 interactions was observed through CD Spectroscopy. Further, nano-bio-interface study was performed using SERS, through shifting and extinct of peaks affiliated to membrane proteins and lipids. However, Fe content TiO2-treated samples showed a significant increase in the membrane potential of mitochondria via flow cytometry results.
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Affiliation(s)
- Tejal Barkhade
- School of Nanosciences, Central University of Gujarat, Gandhinagar, Gujarat, 382030, India
| | - Santosh Kumar Mahapatra
- Department of Physical Science, Central University of Punjab, Bathinda, 151001, Punjab, India
| | - Indrani Banerjee
- School of Nanosciences, Central University of Gujarat, Gandhinagar, Gujarat, 382030, India.
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Lamarra J, Bucci P, Giannuzzi L, Montanari J, Rivero S, Pinotti A. Biomaterial-based dressings as vehicle for chitosan-encapsulated cabreuva essential oil: Cytotoxicity and regenerative activity. REACT FUNCT POLYM 2020. [DOI: 10.1016/j.reactfunctpolym.2020.104728] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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Markowska-Szczupak A, Endo-Kimura M, Paszkiewicz O, Kowalska E. Are Titania Photocatalysts and Titanium Implants Safe? Review on the Toxicity of Titanium Compounds. NANOMATERIALS 2020; 10:nano10102065. [PMID: 33086609 PMCID: PMC7603142 DOI: 10.3390/nano10102065] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/26/2020] [Revised: 10/15/2020] [Accepted: 10/16/2020] [Indexed: 12/11/2022]
Abstract
Titanium and its compounds are broadly used in both industrial and domestic products, including jet engines, missiles, prostheses, implants, pigments, cosmetics, food, and photocatalysts for environmental purification and solar energy conversion. Although titanium/titania-containing materials are usually safe for human, animals and environment, increasing concerns on their negative impacts have been postulated. Accordingly, this review covers current knowledge on the toxicity of titania and titanium, in which the behaviour, bioavailability, mechanisms of action, and environmental impacts have been discussed in detail, considering both light and dark conditions. Consequently, the following conclusions have been drawn: (i) titania photocatalysts rarely cause health and environmental problems; (ii) despite the lack of proof, the possible carcinogenicity of titania powders to humans is considered by some authorities; (iii) titanium alloys, commonly applied as implant materials, possess a relatively low health risk; (iv) titania microparticles are less toxic than nanoparticles, independent of the means of exposure; (v) excessive accumulation of titanium in the environment cannot be ignored; (vi) titanium/titania-containing products should be clearly marked with health warning labels, especially for pregnant women and young children; (vi) a key knowledge gap is the lack of comprehensive data about the environmental content and the influence of titania/titanium on biodiversity and the ecological functioning of terrestrial and aquatic ecosystems.
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Affiliation(s)
- Agata Markowska-Szczupak
- Department of Chemical and Process Engineering, West Pomeranian University of Technology in Szczecin, Al. Piastów 42, 71-065 Szczecin, Poland;
- Correspondence: (A.M.-S.); (E.K.)
| | - Maya Endo-Kimura
- Institute for Catalysis, Hokkaido University, N21, W10, Sapporo 001-0021, Japan;
| | - Oliwia Paszkiewicz
- Department of Chemical and Process Engineering, West Pomeranian University of Technology in Szczecin, Al. Piastów 42, 71-065 Szczecin, Poland;
| | - Ewa Kowalska
- Institute for Catalysis, Hokkaido University, N21, W10, Sapporo 001-0021, Japan;
- Correspondence: (A.M.-S.); (E.K.)
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Cai X, Liu X, Jiang J, Gao M, Wang W, Zheng H, Xu S, Li R. Molecular Mechanisms, Characterization Methods, and Utilities of Nanoparticle Biotransformation in Nanosafety Assessments. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2020; 16:e1907663. [PMID: 32406193 DOI: 10.1002/smll.201907663] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/30/2019] [Revised: 03/31/2020] [Accepted: 03/31/2020] [Indexed: 06/11/2023]
Abstract
It is a big challenge to reveal the intrinsic cause of a nanotoxic effect due to diverse branches of signaling pathways induced by engineered nanomaterials (ENMs). Biotransformation of toxic ENMs involving biochemical reactions between nanoparticles (NPs) and biological systems has recently attracted substantial attention as it is regarded as the upstream signal in nanotoxicology pathways, the molecular initiating event (MIE). Considering that different exposure routes of ENMs may lead to different interfaces for the arising of biotransformation, this work summarizes the nano-bio interfaces and dose calculation in inhalation, dermal, ingestion, and injection exposures to humans. Then, five types of biotransformation are shown, including aggregation and agglomeration, corona formation, decomposition, recrystallization, and redox reactions. Besides, the characterization methods for investigation of biotransformation as well as the safe design of ENMs to improve the sustainable development of nanotechnology are also discussed. Finally, future perspectives on the implications of biotransformation in clinical translation of nanomedicine and commercialization of nanoproducts are provided.
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Affiliation(s)
- Xiaoming Cai
- School of Public Health, Soochow University, Suzhou, Jiangsu, 215123, China
| | - Xi Liu
- State Key Laboratory of Radiation Medicine and Protection, School of Radiation Medicine and Protection, Soochow University, Suzhou, Jiangsu, 215123, China
| | - Jun Jiang
- State Key Laboratory of Radiation Medicine and Protection, School of Radiation Medicine and Protection, Soochow University, Suzhou, Jiangsu, 215123, China
| | - Meng Gao
- State Key Laboratory of Radiation Medicine and Protection, School of Radiation Medicine and Protection, Soochow University, Suzhou, Jiangsu, 215123, China
| | - Weili Wang
- State Key Laboratory of Radiation Medicine and Protection, School of Radiation Medicine and Protection, Soochow University, Suzhou, Jiangsu, 215123, China
| | - Huizhen Zheng
- State Key Laboratory of Radiation Medicine and Protection, School of Radiation Medicine and Protection, Soochow University, Suzhou, Jiangsu, 215123, China
| | - Shujuan Xu
- State Key Laboratory of Radiation Medicine and Protection, School of Radiation Medicine and Protection, Soochow University, Suzhou, Jiangsu, 215123, China
| | - Ruibin Li
- State Key Laboratory of Radiation Medicine and Protection, School of Radiation Medicine and Protection, Soochow University, Suzhou, Jiangsu, 215123, China
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Attarilar S, Yang J, Ebrahimi M, Wang Q, Liu J, Tang Y, Yang J. The Toxicity Phenomenon and the Related Occurrence in Metal and Metal Oxide Nanoparticles: A Brief Review From the Biomedical Perspective. Front Bioeng Biotechnol 2020; 8:822. [PMID: 32766232 PMCID: PMC7380248 DOI: 10.3389/fbioe.2020.00822] [Citation(s) in RCA: 85] [Impact Index Per Article: 21.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2020] [Accepted: 06/26/2020] [Indexed: 12/16/2022] Open
Abstract
Thousands of different nanoparticles (NPs) involve in our daily life with various origins from food, cosmetics, drugs, etc. It is believed that decreasing the size of materials up to nanometer levels can facilitate their unfavorable absorption since they can pass the natural barriers of live tissues and organs even, they can go across the relatively impermeable membranes. The interaction of these NPs with the biological environment disturbs the natural functions of cells and its components and cause health issues. In the lack of the detailed and comprehensive standard protocols about the toxicity of NPs materials, their control, and effects, this review study focuses on the current research literature about the related factors in toxicity of NPs such as size, concentration, etc. with an emphasis on metal and metal oxide nanoparticles. The goal of the study is to highlight their potential hazard and the advancement of green non-cytotoxic nanomaterials with safe threshold dose levels to resolve the toxicity issues. This study supports the NPs design along with minimizing the adverse effects of nanoparticles especially those used in biological treatments.
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Affiliation(s)
- Shokouh Attarilar
- Department of Pediatric Orthopaedics, Xin Hua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Jinfan Yang
- Department of Spine Surgery, Xin Hua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Mahmoud Ebrahimi
- National Engineering Research Center of Light Alloy Net Forming, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai, China
| | - Qingge Wang
- School of Metallurgical Engineering, Xi’an University of Architecture and Technology, Xi’an, China
| | - Jia Liu
- Affiliated Hospital of Youjiang Medical University for Nationalities, Baise, China
| | - Yujin Tang
- Affiliated Hospital of Youjiang Medical University for Nationalities, Baise, China
| | - Junlin Yang
- Department of Pediatric Orthopaedics, Xin Hua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
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Jin SE, Kim EJ, Kim H, Kim H, Hwang W, Hong SW. In vitro and in vivo toxicological evaluation of transition metal-doped titanium dioxide nanoparticles: Nickel and platinum. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 115:110843. [PMID: 32600674 DOI: 10.1016/j.msec.2020.110843] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2019] [Revised: 10/09/2019] [Accepted: 03/11/2020] [Indexed: 12/19/2022]
Abstract
Transition metal-doped titanium dioxide nanoparticles (M-TiO2 NPs) have been studied to enhance the activity of TiO2 NPs in biomedical applications. In this study, in vitro and in vivo toxicological aspects of M-TiO2 NPs were reported to assess the safety of these materials. M-TiO2 NPs were synthesized via a photo-deposition technique. Nickel (Ni) and platinum (Pt) were used as dopants. Physicochemical properties, cytotoxicity, phototoxicity, gene ontology (GO) and dermal toxicity of M-TiO2 NPs were investigated. Ni-TiO2 (Ni, 1.02%) and Pt-TiO2 (Pt, 0.26%) NPs were sphere shape crystals with nanoscale size. ARPE-19 cells were more susceptible to Pt-TiO2 NPs (EC50, 0.796 mg/mL) than Ni-TiO2 NPs (EC50, 2.945 mg/mL). M-TiO2 NPs were rated as probably phototoxic to phototoxic. GO suggested binding function and metabolic processes as a risk mechanism of M-TiO2 NPs. In vivo toxicological effects of Ni-TiO2 NPs were not observed on body weight, serum aspartate transaminase/alanine transaminase levels, and skin histology at 61.5-6150 mg/kg. Specifically, skin thickness was not significantly modified (max. 33.2 ± 8.7 μm) and inflammation grade was less than level 2 (max. 1.2 ± 0.4). From these results, Ni-TiO2 and Pt-TiO2 NPs show promise as enhanced photocatalysts for safe and sustainable usage.
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Affiliation(s)
- Su-Eon Jin
- Research Institute for Medical Sciences, College of Medicine, Inha University, Incheon 22212, Republic of Korea.
| | - Eun-Ju Kim
- Center for Water Resources Cycle Research, Korea Institute of Science and Technology (KIST) School, KIST, Seoul 02792, Republic of Korea
| | - Hyunmin Kim
- Department of Anesthesiology and Pain Medicine, College of Medicine, Inha University, Incheon 22332, Republic of Korea
| | - Hyunzu Kim
- Department of Anesthesiology and Pain Medicine, College of Medicine, Inha University, Incheon 22332, Republic of Korea
| | | | - Seok Won Hong
- Center for Water Resources Cycle Research, Korea Institute of Science and Technology (KIST) School, KIST, Seoul 02792, Republic of Korea
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Wu F, Hicks AL. Estimating human exposure to titanium dioxide from personal care products through a social survey approach. INTEGRATED ENVIRONMENTAL ASSESSMENT AND MANAGEMENT 2020; 16:10-16. [PMID: 31350944 DOI: 10.1002/ieam.4197] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/03/2019] [Revised: 07/08/2019] [Accepted: 07/25/2019] [Indexed: 06/10/2023]
Abstract
Titanium dioxide (TiO2 ) has been widely applied in personal care products (PCPs), with up to 36% of TiO2 in PCPs is present at the nanoscale. Due to the large quantity produced and the wide application of TiO2 , there is a great potential for human exposure through various routes and therefore a great potential to elicit adverse impacts. This work utilizes a social survey to generate information and estimate TiO2 (bulk and nanoparticle [NP]) exposure to individuals through the daily use of PCPs. Households in the Madison, Wisconsin, USA metropolitan area were surveyed about their PCP usage. Survey results were then combined with usage patterns and TiO2 content in each PCP category to estimate human exposures. Results indicate sunscreen and toothpaste are major contributors to TiO2 dermal exposure. The estimated daily dermal route of exposure ranges from 2.8 to 21.4 mg TiO2 per person per day. Toothpaste has the potential to be ingested though the oral route; 0.15 to 3.9 mg TiO2 per day were estimated to be ingested when 10% toothpaste ingestion was assumed. The results generated in the present case study are generalizable in predicting individual TiO2 exposure from PCPs when the usage pattern is available. In addition, this study can be further used for risk assessment and to refine the use of TiO2 in PCPs. Integr Environ Assess Manag 2019;00:1-7. © 2019 SETAC.
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Affiliation(s)
- Fan Wu
- Department of Civil and Environmental Engineering, University of Wisconsin-Madison, Madison, Wisconsin, USA
- School of Environment and Guangdong Key Laboratory of Environmental Pollution and Health, Jinan University, Guangzhou, China
| | - Andrea L Hicks
- Department of Civil and Environmental Engineering, University of Wisconsin-Madison, Madison, Wisconsin, USA
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Damiani E, Puglia C. Nanocarriers and Microcarriers for Enhancing the UV Protection of Sunscreens: An Overview. J Pharm Sci 2019; 108:3769-3780. [PMID: 31521640 DOI: 10.1016/j.xphs.2019.09.009] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2019] [Revised: 07/24/2019] [Accepted: 09/06/2019] [Indexed: 11/30/2022]
Abstract
This review addresses a major question of importance to pharmaceutical scientists: how can novel drug delivery systems play a role in maximizing the UV protection of sunscreens? Because more and more people are being diagnosed with skin cancer each year than all other cancers combined, adequate sun protective measures are pivotal. In this context, the present review is to give an up-to-date overview on the different nanocarrier systems that have been explored so far for encapsulating different types of UV filters present on the market. The aim of these carrier systems is to prevent skin penetration and to enhance the photoprotective potential of sunscreen actives. For each supramolecular system, a brief description along with the studies, achievements, and pitfalls, on the type of UV actives inside them, ranging from classical UV filters to new generation of UV actives is given. A brief overview of UV filters encapsulated in microcarriers is also discussed.
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Affiliation(s)
- Elisabetta Damiani
- Department of Life and Environmental Sciences, Polytechnic University of the Marche, Ancona, Italy.
| | - Carmelo Puglia
- Department of Drug Sciences, University of Catania, Catania, Italy
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18
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Vallabani NVS, Sengupta S, Shukla RK, Kumar A. ZnO nanoparticles-associated mitochondrial stress-induced apoptosis and G2/M arrest in HaCaT cells: a mechanistic approach. Mutagenesis 2019; 34:265-277. [DOI: 10.1093/mutage/gez017] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2019] [Accepted: 06/25/2019] [Indexed: 11/12/2022] Open
Abstract
Abstract
Zinc oxide nanoparticles (ZnO NPs) with their wide range of consumer applications in day-to-day life received great attention to evaluate their effects in humans. This study has been attempted to elucidate the DNA damage response mechanism in a dermal model exposed to ZnO NPs through Ataxia Telangiectasia Mutated (ATM)-mediated ChK1-dependent G2/M arrest. Further, viability parameters and mechanism involved in the cell death with special reference to the consequences arising due to DNA damage were explored. Our study showed that ZnO NPs at concentrations 5 and 10 µg/ml induced significant cytotoxic effect in skin cell line. Moreover, the results confirmed generation of reactive oxygen species (ROS) induces the cell death by genotoxic insult, leading to mitochondrial membrane depolarisation and cell cycle arrest. Subsequently, ZnO NPs treatment created DNA damage as confirmed via Comet assay (increase in olive tail moment), micronucleus assay (increase in micronucleus formation), double-strand breaks (increase in ATM and Ataxia Telangiectasia and Rad3 related (ATR) expression), DNA fragmentation and cell cycle (G2/M arrest) studies. Finally, marker proteins analysis concluded the mechanistic approach by demonstrating the key marker expressions HMOX1 and HSP60 (for oxidative stress), cytochrome c, APAF1, BAX, Caspase 9, Caspase 3 and decrease in BCL2 (for activating apoptotic pathway), pATM, ATR and γH2AX (for double-strand breaks), DNA-PK (involved in DNA repair) and decrease in cell cycle regulators. In together, our data revealed the mechanism of ROS generation that triggers apoptosis and DNA damage in HaCaT cell lines exposed to ZnO NPs.
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Affiliation(s)
- N V Srikanth Vallabani
- Biological and Life Sciences, School of Arts and Sciences, Ahmedabad University, Central Campus, Navrangpura, Ahmedabad, Gujarat, India
| | - Souvik Sengupta
- Biological and Life Sciences, School of Arts and Sciences, Ahmedabad University, Central Campus, Navrangpura, Ahmedabad, Gujarat, India
| | - Ritesh Kumar Shukla
- Biological and Life Sciences, School of Arts and Sciences, Ahmedabad University, Central Campus, Navrangpura, Ahmedabad, Gujarat, India
| | - Ashutosh Kumar
- Biological and Life Sciences, School of Arts and Sciences, Ahmedabad University, Central Campus, Navrangpura, Ahmedabad, Gujarat, India
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Sanches PL, Souza W, Gemini-Piperni S, Rossi AL, Scapin S, Midlej V, Sade Y, Leme AFP, Benchimol M, Rocha LA, Carias RBV, Borojevic R, Granjeiro JM, Ribeiro AR. Rutile nano-bio-interactions mediate dissimilar intracellular destiny in human skin cells. NANOSCALE ADVANCES 2019; 1:2216-2228. [PMID: 36131956 PMCID: PMC9418931 DOI: 10.1039/c9na00078j] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/08/2019] [Accepted: 04/10/2019] [Indexed: 06/15/2023]
Abstract
The use of nanoparticles (NPs) in the healthcare market is growing exponentially, due to their unique physicochemical properties. Titanium dioxide nanoparticles (TiO2 NPs) are used in the formulation of sunscreens, due to their photoprotective capacity, but interactions of these particles with skin cells on the nanoscale are still unexplored. In the present study we aimed to determine whether the initial nano-biological interactions, namely the formation of a nano-bio-complex (other than the protein corona), can predict rutile internalization and intracellular trafficking in primary human fibroblasts and keratinocytes. Results showed no significant effect of NPs on fibroblast and keratinocyte viability, but cell proliferation was possibly compromised due to nano-bio-interactions. The bio-complex formation is dependent upon the chemistry of the biological media and NPs' physicochemical properties, facilitating NP internalization and triggering autophagy in both cell types. For the first time, we observed that the intracellular traffic of NPs is different when comparing the two skin cell models, and we detected NPs within multivesicular bodies (MVBs) of keratinocytes. These structures grant selected input of molecules involved in the biogenesis of exosomes, responsible for cell communication and, potentially, structural equilibrium in human tissues. Nanoparticle-mediated alterations of exosome quality, quantity and function can be another major source of nanotoxicity.
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Affiliation(s)
- P L Sanches
- Directory of Life Sciences Applied Metrology, National Institute of Metrology Quality and Technology Av. Nossa Senhora das Graças 50 Xérem Rio de Janeiro Brazil
- Postgraduate Program in Translational Biomedicine, University of Grande Rio Rua Prof. José de Souza Herdy 1160 Duque de Caxias Brazil
- Brazilian Branch of Institute of Biomaterials, Tribocorrosion and Nanomedicine (IBTN) Brazil
| | - W Souza
- Directory of Life Sciences Applied Metrology, National Institute of Metrology Quality and Technology Av. Nossa Senhora das Graças 50 Xérem Rio de Janeiro Brazil
- Brazilian Branch of Institute of Biomaterials, Tribocorrosion and Nanomedicine (IBTN) Brazil
- Postgraduate Program in Biotechnology, National Institute of Metrology Quality and Technology Av. Nossa Senhora das Graças 50, Xérem Rio de Janeiro Brazil
| | - S Gemini-Piperni
- Brazilian Branch of Institute of Biomaterials, Tribocorrosion and Nanomedicine (IBTN) Brazil
- Brazilian Center for Research in Physics R. Dr. Xavier Sigaud, 150 - Urca Rio de Janeiro Brazil
| | - A L Rossi
- Brazilian Center for Research in Physics R. Dr. Xavier Sigaud, 150 - Urca Rio de Janeiro Brazil
| | - S Scapin
- Directory of Life Sciences Applied Metrology, National Institute of Metrology Quality and Technology Av. Nossa Senhora das Graças 50 Xérem Rio de Janeiro Brazil
| | - V Midlej
- Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro Av. Brg. Trompowski Rio de Janeiro Brazil
| | - Y Sade
- Directory of Life Sciences Applied Metrology, National Institute of Metrology Quality and Technology Av. Nossa Senhora das Graças 50 Xérem Rio de Janeiro Brazil
| | - A F Paes Leme
- Laboratório Nacional de Biociências, CNPEM R. Giuseppe Máximo Scolfaro, 10000 - Polo II de Alta Tecnologia de Campinas - Campinas/SP, Brasil Bosque das Palmeiras, Campinas São Paulo Brazil
| | - M Benchimol
- Postgraduate Program in Translational Biomedicine, University of Grande Rio Rua Prof. José de Souza Herdy 1160 Duque de Caxias Brazil
- Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro Av. Brg. Trompowski Rio de Janeiro Brazil
| | - L A Rocha
- Brazilian Branch of Institute of Biomaterials, Tribocorrosion and Nanomedicine (IBTN) Brazil
- Physics Department, University Estadual Paulista Av. Eng. Luiz Edmundo Carrijo Coube, Bauru São Paulo Brazil
| | - R B V Carias
- Center of Regenerative Medicine, Faculty of Medicine, FASE Av. Barão do Rio Branco 1003 Petrópolis RJ Brazil
| | - R Borojevic
- Center of Regenerative Medicine, Faculty of Medicine, FASE Av. Barão do Rio Branco 1003 Petrópolis RJ Brazil
| | - J M Granjeiro
- Directory of Life Sciences Applied Metrology, National Institute of Metrology Quality and Technology Av. Nossa Senhora das Graças 50 Xérem Rio de Janeiro Brazil
- Postgraduate Program in Translational Biomedicine, University of Grande Rio Rua Prof. José de Souza Herdy 1160 Duque de Caxias Brazil
- Brazilian Branch of Institute of Biomaterials, Tribocorrosion and Nanomedicine (IBTN) Brazil
- Postgraduate Program in Biotechnology, National Institute of Metrology Quality and Technology Av. Nossa Senhora das Graças 50, Xérem Rio de Janeiro Brazil
- Dental School, Fluminense Federal University R. Miguel de Frias, 9 - Icaraí Niterói Brazil
| | - A R Ribeiro
- Postgraduate Program in Translational Biomedicine, University of Grande Rio Rua Prof. José de Souza Herdy 1160 Duque de Caxias Brazil
- Brazilian Branch of Institute of Biomaterials, Tribocorrosion and Nanomedicine (IBTN) Brazil
- Postgraduate Program in Biotechnology, National Institute of Metrology Quality and Technology Av. Nossa Senhora das Graças 50, Xérem Rio de Janeiro Brazil
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Can nano-hydroxyapatite permeate the oral mucosa? A histological study using three-dimensional tissue models. PLoS One 2019; 14:e0215681. [PMID: 31013294 PMCID: PMC6478310 DOI: 10.1371/journal.pone.0215681] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2018] [Accepted: 04/06/2019] [Indexed: 12/11/2022] Open
Abstract
Nano-hydroxyapatite is used in oral care products worldwide. But there is little evidence yet whether nano-hydroxyapatite can enter systemic tissues via the oral epithelium. We investigated histologically the ability of two types of nano-hydroxyapatite, SKM-1 and Mi-HAP, to permeate oral epithelium both with and without a stratum corneum, using two types of three-dimensional reconstituted human oral epithelium, SkinEthic HGE and SkinEthic HOE respectively with and without a stratum corneum. Both types of nano-hydroxyapatite formed aggregates in solution, but both aggregates and primary particles were much larger for SKM-1 than for Mi-HAP. Samples of each tissue model were exposed to SKM-1 and Mi-HAP for 24 h at concentrations ranging from 1,000 to 50,000 ppm. After treatment, paraffin sections from the samples were stained with Dahl or Von Kossa stains. We also used OsteoSense 680EX, a fluorescent imaging agent, to test for the presence of HAP in paraffin tissue sections for the first time. Our results for both types of nano-hydroxyapatite showed that the nanoparticles did not penetrate the stratum corneum in SkinEthic HGE samples and penetrated only the outermost layer of cells in SkinEthic HOE samples without stratum corneum, and no permeation into the deeper layers of the epithelium in either tissue model was observed. In the non-cornified model, OsteoSense 680EX staining confirmed the presence of nano-hydroxyapatite particles in both the cytoplasm and extracellular matrix of outermost cells, but not in the deeper layers. Our results suggest that the stratum corneum may act as a barrier to penetration of nano-hydroxyapatite into the oral epithelium. Moreover, since oral epithelial cell turnover is around 5–7 days, superficial cells of the non-keratinized mucosa in which nanoparticles are taken up are likely to be deciduated within that time frame. Our findings suggest that nano-hydroxyapatite is unlikely to enter systemic tissues via intact oral epithelium.
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Liao W, Du Y, Zhang C, Pan F, Yao Y, Zhang T, Peng Q. Exosomes: The next generation of endogenous nanomaterials for advanced drug delivery and therapy. Acta Biomater 2019; 86:1-14. [PMID: 30597259 DOI: 10.1016/j.actbio.2018.12.045] [Citation(s) in RCA: 250] [Impact Index Per Article: 50.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2018] [Revised: 11/23/2018] [Accepted: 12/27/2018] [Indexed: 02/08/2023]
Abstract
Development of functional nanomaterials is of great importance and significance for advanced drug delivery and therapy. Nevertheless, exogenous nanomaterials have a great ability to induce undesired immune responses and nano-protein interactions, which may result in toxicity and failure of therapy. Exosomes, a kind of endogenous extracellular vesicle (40-100 nm in diameter), are considered as a new generation of a natural nanoscale delivery system. Exosomes secreted by different types of cells carry different signal molecules (such as RNAs and proteins) and thus have a great potential for targeted drug delivery and therapy. Herein, we provide comprehensive understanding of the properties and applications of exosomes, including their biogenesis, biofunctions, isolation, purification, and drug loading, and typical examples in drug delivery and therapy. Furthermore, their advantages compared to other nanoparticles and potential in tumor immunotherapy are also discussed. STATEMENT OF SIGNIFICANCE: Exosomes, a kind of endogenous extracellular vesicle, have emerged as a novel and attractive endogenous nanomaterial for advanced drug delivery and targeted therapy. Exosomes are secreted by many types of cells and carry some unique signals obtained from their parental cells. Furthermore, the liposome-like structure allows exosomes to load various drugs. Hence, the potential of exosomes in drug delivery, tumor targeted therapy, and immunotherapy has been investigated in recent years. On the basis of their endogenous features and multifunctional properties, exosomes are of great significance and interest for the development of future medicine and pharmaceuticals.
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Zeman T, Loh EW, Čierný D, Šerý O. Penetration, distribution and brain toxicity of titanium nanoparticles in rodents' body: a review. IET Nanobiotechnol 2018; 12:695-700. [PMID: 30104440 PMCID: PMC8676074 DOI: 10.1049/iet-nbt.2017.0109] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2017] [Revised: 03/07/2018] [Accepted: 03/15/2018] [Indexed: 11/20/2022] Open
Abstract
Titanium dioxide (TiO2) has been vastly used commercially, especially as white pigment in paints, colorants, plastics, coatings, cosmetics. Certain industrial uses TiO2 in diameter <100 nm. There are three common exposure routes for TiO2: (i) inhalation exposure, (ii) exposure via gastrointestinal tract, (iii) dermal exposure. Inhalation and gastrointestinal exposure appear to be the most probable ways of exposure, although nanoparticle (NP) penetration is limited. However, the penetration rate may increase substantially when the tissue is impaired. When TiO2 NPs migrate into the circulatory system, they can be distributed into all tissues including brain. In brain, TiO2 lead to oxidative stress mediated by the microglia phagocytic cells which respond to TiO2 NPs by the production and release of superoxide radicals that convert to multiple reactive oxygen species (ROS). The ROS production may also cause the damage of blood-brain barrier which then becomes more permeable for NPs. Moreover, several studies have showed neuron degradation and the impairment of spatial recognition memory and learning abilities in laboratory rodent exposed to TiO2 NPs.
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Affiliation(s)
- Tomáš Zeman
- Laboratory of Neurobiology and Molecular Psychiatry, Department of Biochemistry, Faculty of Science, Masaryk University, Kotlářská 2, 611 37 Brno, Czech Republic
| | - El-Wui Loh
- Center for Evidence - based Health Care, Taipei Medical University - Shuang Ho Hospital, No. 291, Zhongzheng Road, Zhonghe District, New Taipei City 23561, Taiwan
| | - Daniel Čierný
- Department of Clinical Biochemistry, Jessenius Faculty of Medicine in Martin, Kollárova 2, 03659 Martin, Slovak Republic
| | - Omar Šerý
- Laboratory of Neurobiology and Pathological Physiology, Institute of Animal Physiology and Genetics, Academy of Sciences of the Czech Republic, Veveří 97, 602 00 Brno, Czech Republic.
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Wiącek AE, Gozdecka A, Jurak M. Physicochemical Characteristics of Chitosan–TiO2 Biomaterial. 1. Stability and Swelling Properties. Ind Eng Chem Res 2018. [DOI: 10.1021/acs.iecr.7b04257] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Affiliation(s)
- Agnieszka E. Wiącek
- Department of Interfacial
Phenomena, Faculty of Chemistry, Maria Curie-Skłodowska University, 20-031 Lublin, Poland
| | - Agata Gozdecka
- Department of Interfacial
Phenomena, Faculty of Chemistry, Maria Curie-Skłodowska University, 20-031 Lublin, Poland
| | - Małgorzata Jurak
- Department of Interfacial
Phenomena, Faculty of Chemistry, Maria Curie-Skłodowska University, 20-031 Lublin, Poland
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Jain A, Ranjan S, Dasgupta N, Ramalingam C. Nanomaterials in food and agriculture: An overview on their safety concerns and regulatory issues. Crit Rev Food Sci Nutr 2017; 58:297-317. [DOI: 10.1080/10408398.2016.1160363] [Citation(s) in RCA: 112] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Aditi Jain
- Department of Biotechnology, Jaypee Institute of Information Technology, Noida, Uttar Pradesh, India
| | - Shivendu Ranjan
- Nano-Food Research Group, Instrumental and Food Analysis Laboratory, Division of Industrial Biotechnology, School of Bio Sciences and Technology, VIT University, Vellore, Tamil Nadu, India
- Research Wing, Veer Kunwar Singh Memorial Trust, Chapra, Bihar, India
- Xpert Arena Technological Services Pvt. Ltd., Chapra, Bihar, India
| | - Nandita Dasgupta
- Nano-Food Research Group, Instrumental and Food Analysis Laboratory, Division of Industrial Biotechnology, School of Bio Sciences and Technology, VIT University, Vellore, Tamil Nadu, India
| | - Chidambaram Ramalingam
- Nano-Food Research Group, Instrumental and Food Analysis Laboratory, Division of Industrial Biotechnology, School of Bio Sciences and Technology, VIT University, Vellore, Tamil Nadu, India
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Hong F, Yu X, Wu N, Zhang YQ. Progress of in vivo studies on the systemic toxicities induced by titanium dioxide nanoparticles. Toxicol Res (Camb) 2017; 6:115-133. [PMID: 30090482 PMCID: PMC6061230 DOI: 10.1039/c6tx00338a] [Citation(s) in RCA: 49] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2016] [Accepted: 12/09/2016] [Indexed: 01/29/2023] Open
Abstract
Titanium dioxide nanoparticles (TiO2 NPs) are inorganic materials with a diameter of 1-100 nm. In recent years, TiO2 NPs have been used in a wide range of products, including food, toothpaste, cosmetics, medicine, paints and printing materials, due to their unique properties (high stability, anti-corrosion, and efficient photocatalysis). Following exposure via various routes including inhalation, injection, dermal deposition and gastrointestinal tract absorption, NPs can be found in various organs in the body potentially inducing toxic effects. Thus more attention to the safety of TiO2 NPs is necessary. Therefore, the present review aims to provide a comprehensive evaluation of the toxic effects induced by TiO2 NPs in the lung, liver, stomach, intestine, kidney, spleen, brain, hippocampus, heart, blood vessels, ovary and testis of mice and rats in in vivo experiments, and evaluate their potential toxic mechanisms. The findings will provide an important reference for human risk evaluation and management following TiO2 NP exposure.
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Affiliation(s)
- Fashui Hong
- Jiangsu Collaborative Innovation Center of Regional Modern Agriculture & Environmental Protection , Huaiyin Normal University , Huaian 223300 , China .
- Jiangsu Key Laboratory for Eco-Agricultural Biotechnology around Hongze Lake , Huaiyin Normal University , Huaian 223300 , China
- School of Life Sciences , Huaiyin Normal University , Huaian 223300 , China
| | - Xiaohong Yu
- School of Basic Medical and Biological Sciences , Soochow University , Suzhou 215123 , China .
| | - Nan Wu
- Jiangsu Collaborative Innovation Center of Regional Modern Agriculture & Environmental Protection , Huaiyin Normal University , Huaian 223300 , China .
- Jiangsu Key Laboratory for Eco-Agricultural Biotechnology around Hongze Lake , Huaiyin Normal University , Huaian 223300 , China
- School of Life Sciences , Huaiyin Normal University , Huaian 223300 , China
| | - Yu-Qing Zhang
- School of Basic Medical and Biological Sciences , Soochow University , Suzhou 215123 , China .
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Chen R, Hu B, Liu Y, Xu J, Yang G, Xu D, Chen C. Beyond PM2.5: The role of ultrafine particles on adverse health effects of air pollution. Biochim Biophys Acta Gen Subj 2016; 1860:2844-55. [DOI: 10.1016/j.bbagen.2016.03.019] [Citation(s) in RCA: 193] [Impact Index Per Article: 24.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2016] [Revised: 03/04/2016] [Accepted: 03/11/2016] [Indexed: 12/29/2022]
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Shakeel M, Jabeen F, Shabbir S, Asghar MS, Khan MS, Chaudhry AS. Toxicity of Nano-Titanium Dioxide (TiO2-NP) Through Various Routes of Exposure: a Review. Biol Trace Elem Res 2016; 172:1-36. [PMID: 26554951 DOI: 10.1007/s12011-015-0550-x] [Citation(s) in RCA: 165] [Impact Index Per Article: 20.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/06/2015] [Accepted: 10/19/2015] [Indexed: 01/18/2023]
Abstract
Nano-titanium dioxide (TiO2) is one of the most commonly used materials being synthesized for use as one of the top five nanoparticles. Due to the extensive application of TiO2 nanoparticles and their inclusion in many commercial products, the increased exposure of human beings to nanoparticles is possible. This exposure could be routed via dermal penetration, inhalation and oral ingestion or intravenous injection. Therefore, regular evaluation of their potential toxicity and distribution in the bodies of exposed individuals is essential. Keeping in view the potential health hazards of TiO2 nanoparticles for humans, we reviewed the research articles about studies performed on rats or other mammals as animal models. Most of these studies utilized the dermal or skin and the pulmonary exposures as the primary routes of toxicity. It was interesting that only very few studies revealed that the TiO2 nanoparticles could penetrate through the skin and translocate to other tissues, while many other studies demonstrated that no penetration or translocation could happen through the skin. Conversely, the TiO2 nanoparticles that entered through the pulmonary route were translocated to the brain or the systemic circulation from where these reached other organs like the kidney, liver, etc. In most studies, TiO2 nanoparticles appeared to have caused oxidative stress, histopathological alterations, carcinogenesis, genotoxicity and immune disruption. Therefore, the use of such materials in humans must be either avoided or strictly managed to minimise risks for human health in various situations.
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Affiliation(s)
- Muhammad Shakeel
- Department of Zoology, Government College University Faisalabad, Faisalabad, Pakistan
| | - Farhat Jabeen
- Department of Zoology, Government College University Faisalabad, Faisalabad, Pakistan.
| | - Samina Shabbir
- Department of Zoology, Government College University Faisalabad, Faisalabad, Pakistan
| | | | - Muhammad Saleem Khan
- Department of Zoology, Government College University Faisalabad, Faisalabad, Pakistan
| | - Abdul Shakoor Chaudhry
- School of Agriculture, Food and Rural Development, Newcastle University, Newcastle upon Tyne, NE1 7RU, UK
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Fage SW, Muris J, Jakobsen SS, Thyssen JP. Titanium: a review on exposure, release, penetration, allergy, epidemiology, and clinical reactivity. Contact Dermatitis 2016; 74:323-45. [PMID: 27027398 DOI: 10.1111/cod.12565] [Citation(s) in RCA: 131] [Impact Index Per Article: 16.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2015] [Revised: 02/07/2016] [Accepted: 02/08/2016] [Indexed: 11/29/2022]
Abstract
Exposure to titanium (Ti) from implants and from personal care products as nanoparticles (NPs) is common. This article reviews exposure sources, ion release, skin penetration, allergenic effects, and diagnostic possibilities. We conclude that human exposure to Ti mainly derives from dental and medical implants, personal care products, and foods. Despite being considered to be highly biocompatible relative to other metals, Ti is released in the presence of biological fluids and tissue, especially under certain circumstances, which seem to be more likely with regard to dental implants. Although most of the studies reviewed have important limitations, Ti seems not to penetrate a competent skin barrier, either as pure Ti, alloy, or as Ti oxide NPs. However, there are some indications of Ti penetration through the oral mucosa. We conclude that patch testing with the available Ti preparations for detection of type IV hypersensitivity is currently inadequate for Ti. Although several other methods for contact allergy detection have been suggested, including lymphocyte stimulation tests, none has yet been generally accepted, and the diagnosis of Ti allergy is therefore still based primarily on clinical evaluation. Reports on clinical allergy and adverse events have rarely been published. Whether this is because of unawareness of possible adverse reactions to this specific metal, difficulties in detection methods, or the metal actually being relatively safe to use, is still unresolved.
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Affiliation(s)
- Simon W Fage
- Department of Dermato-Venereology, Aarhus University Hospital, 8000 Aarhus, Denmark
| | - Joris Muris
- Department of Dental Materials Science, Academic Centre for Dentistry Amsterdam, University of Amsterdam and VU University Amsterdam, Gustav Mahlerlaan 3004, 1081 LA, Amsterdam, The Netherlands
| | - Stig S Jakobsen
- Department of Orthopaedic Surgery, Aarhus University Hospital, 8000 Aarhus, Denmark
| | - Jacob P Thyssen
- National Allergy Research Centre, Department of Dermato-Allergology, Copenhagen University Hospital Herlev-Gentofte, 2900 Hellerup, Denmark
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Casanova F, Santos L. Encapsulation of cosmetic active ingredients for topical application--a review. J Microencapsul 2015; 33:1-17. [PMID: 26612271 DOI: 10.3109/02652048.2015.1115900] [Citation(s) in RCA: 98] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Microencapsulation is finding increasing applications in cosmetics and personal care markets. This article provides an overall discussion on encapsulation of cosmetically active ingredients and encapsulation techniques for cosmetic and personal care products for topical applications. Some of the challenges are identified and critical aspects and future perspectives are addressed. Many cosmetics and personal care products contain biologically active substances that require encapsulation for increased stability of the active materials. The topical and transdermal delivery of active cosmetic ingredients requires effective, controlled and safe means of reaching the target site within the skin. Preservation of the active ingredients is also essential during formulation, storage and application of the final cosmetic product. Microencapsulation offers an ideal and unique carrier system for cosmetic active ingredients, as it has the potential to respond to all these requirements. The encapsulated agent can be released by several mechanisms, such as mechanical action, heat, diffusion, pH, biodegradation and dissolution. The selection of the encapsulation technique and shell material depends on the final application of the product, considering physical and chemical stability, concentration, required particle size, release mechanism and manufacturing costs.
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Affiliation(s)
- Francisca Casanova
- a LEPABE, Departamento De Engenharia Química , Faculdade De Engenharia Da Universidade Do Porto , Rua Dr. Roberto Frias , Porto , Portugal
| | - Lúcia Santos
- a LEPABE, Departamento De Engenharia Química , Faculdade De Engenharia Da Universidade Do Porto , Rua Dr. Roberto Frias , Porto , Portugal
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Franken A, Eloff FC, Du Plessis J, Du Plessis JL. In Vitro Permeation of Metals through Human Skin: A Review and Recommendations. Chem Res Toxicol 2015; 28:2237-49. [PMID: 26555458 DOI: 10.1021/acs.chemrestox.5b00421] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Anja Franken
- Occupational Hygiene and Health Research Initiative (OHHRI), North-West University, Private Bag X6001, Potchefstroom 2520, South Africa
| | - Frederik C. Eloff
- Occupational Hygiene and Health Research Initiative (OHHRI), North-West University, Private Bag X6001, Potchefstroom 2520, South Africa
| | - Jeanetta Du Plessis
- Centre of Excellence
for Pharmaceutical Sciences, North-West University, Private Bag X6001, Potchefstroom 2520, South Africa
| | - Johannes L. Du Plessis
- Occupational Hygiene and Health Research Initiative (OHHRI), North-West University, Private Bag X6001, Potchefstroom 2520, South Africa
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Mura S, Greppi G, Malfatti L, Lasio B, Sanna V, Mura ME, Marceddu S, Lugliè A. Multifunctionalization of wool fabrics through nanoparticles: A chemical route towards smart textiles. J Colloid Interface Sci 2015; 456:85-92. [DOI: 10.1016/j.jcis.2015.06.018] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2015] [Revised: 06/08/2015] [Accepted: 06/11/2015] [Indexed: 10/23/2022]
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Titanium Dioxide Nanoparticle Penetration into the Skin and Effects on HaCaT Cells. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2015; 12:9282-97. [PMID: 26262634 PMCID: PMC4555280 DOI: 10.3390/ijerph120809282] [Citation(s) in RCA: 78] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/16/2015] [Revised: 07/23/2015] [Accepted: 08/04/2015] [Indexed: 12/15/2022]
Abstract
Titanium dioxide nanoparticles (TiO2NPs) suspensions (concentration 1.0 g/L) in synthetic sweat solution were applied on Franz cells for 24 h using intact and needle-abraded human skin. Titanium content into skin and receiving phases was determined. Cytotoxicity (MTT, AlamarBlue® and propidium iodide, PI, uptake assays) was evaluated on HaCat keratinocytes after 24 h, 48 h, and seven days of exposure. After 24 h of exposure, no titanium was detectable in receiving solutions for both intact and damaged skin. Titanium was found in the epidermal layer after 24 h of exposure (0.47 ± 0.33 μg/cm2) while in the dermal layer, the concentration was below the limit of detection. Damaged skin, in its whole, has shown a similar concentration (0.53 ± 0.26 μg/cm2). Cytotoxicity studies on HaCaT cells demonstrated that TiO2NPs induced cytotoxic effects only at very high concentrations, reducing cell viability after seven days of exposure with EC50s of 8.8 × 10−4 M (MTT assay), 3.8 × 10−5 M (AlamarBlue® assay), and 7.6 × 10−4 M (PI uptake, index of a necrotic cell death). Our study demonstrated that TiO2NPs cannot permeate intact and damaged skin and can be found only in the stratum corneum and epidermis. Moreover, the low cytotoxic effect observed on human HaCaT keratinocytes suggests that these nano-compounds have a potential toxic effect at the skin level only after long-term exposure.
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A review of critical factors for assessing the dermal absorption of metal oxide nanoparticles from sunscreens applied to humans, and a research strategy to address current deficiencies. Arch Toxicol 2015; 89:1909-30. [DOI: 10.1007/s00204-015-1564-z] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2015] [Accepted: 06/22/2015] [Indexed: 12/26/2022]
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Nanoparticles skin absorption: New aspects for a safety profile evaluation. Regul Toxicol Pharmacol 2015; 72:310-22. [DOI: 10.1016/j.yrtph.2015.05.005] [Citation(s) in RCA: 213] [Impact Index Per Article: 23.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2014] [Revised: 03/17/2015] [Accepted: 05/06/2015] [Indexed: 12/15/2022]
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Sajid M, Ilyas M, Basheer C, Tariq M, Daud M, Baig N, Shehzad F. Impact of nanoparticles on human and environment: review of toxicity factors, exposures, control strategies, and future prospects. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2015; 22:4122-43. [PMID: 25548015 DOI: 10.1007/s11356-014-3994-1] [Citation(s) in RCA: 163] [Impact Index Per Article: 18.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/11/2014] [Accepted: 12/12/2014] [Indexed: 05/13/2023]
Abstract
Nanotechnology has revolutionized the world through introduction of a unique class of materials and consumer products in many arenas. It has led to production of innovative materials and devices. Despite of their unique advantages and applications in domestic and industrial sectors, use of materials with dimensions in nanometers has raised the issue of safety for workers, consumers, and human environment. Because of their small size and other unique characteristics, nanoparticles have ability to harm human and wildlife by interacting through various mechanisms. We have reviewed the characteristics of nanoparticles which form the basis of their toxicity. This paper also reviews possible routes of exposure of nanoparticles to human body. Dermal contact, inhalation, and ingestion have been discussed in detail. As very limited data is available for long-term human exposures, there is a pressing need to develop the methods which can determine short and long-term effects of nanoparticles on human and environment. We also discuss in brief the strategies which can help to control human exposures to toxic nanoparticles. We have outlined the current status of toxicological studies dealing with nanoparticles, accomplishments, weaknesses, and future challenges.
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Affiliation(s)
- Muhammad Sajid
- Department of Chemistry, King Fahd University of Petroleum and Minerals, Dhahran, 31261, Saudi Arabia,
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Menter DG, Patterson SL, Logsdon CD, Kopetz S, Sood AK, Hawk ET. Convergence of nanotechnology and cancer prevention: are we there yet? Cancer Prev Res (Phila) 2014; 7:973-92. [PMID: 25060262 DOI: 10.1158/1940-6207.capr-14-0079] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Nanotechnology is emerging as a promising modality for cancer treatment; however, in the realm of cancer prevention, its full utility has yet to be determined. Here, we discuss the potential of integrating nanotechnology in cancer prevention to augment early diagnosis, precision targeting, and controlled release of chemopreventive agents, reduced toxicity, risk/response assessment, and personalized point-of-care monitoring. Cancer is a multistep, progressive disease; the functional and acquired characteristics of the early precancer phenotype are intrinsically different from those of a more advanced anaplastic or invasive malignancy. Therefore, applying nanotechnology to precancers is likely to be far more challenging than applying it to established disease. Frank cancers are more readily identifiable through imaging and biomarker and histopathologic assessment than their precancerous precursors. In addition, prevention subjects routinely have more rigorous intervention criteria than therapy subjects. Any nanopreventive agent developed to prevent sporadic cancers found in the general population must exhibit a very low risk of serious side effects. In contrast, a greater risk of side effects might be more acceptable in subjects at high risk for cancer. Using nanotechnology to prevent cancer is an aspirational goal, but clearly identifying the intermediate objectives and potential barriers is an essential first step in this exciting journey.
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Affiliation(s)
- David G Menter
- Department of Gastrointestinal Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas. Department of Cancer Biology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Sherri L Patterson
- Division of Cancer Prevention & Population Sciences, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Craig D Logsdon
- Department of Cancer Biology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Scott Kopetz
- Department of Gastrointestinal Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Anil K Sood
- Gynecologic Oncology & Reproductive Medicine, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Ernest T Hawk
- Division of Cancer Prevention & Population Sciences, The University of Texas MD Anderson Cancer Center, Houston, Texas.
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In vivo inflammatory effects of ceria nanoparticles on CD-1 mouse: evaluation by hematological, histological, and TEM analysis. J Immunol Res 2014; 2014:361419. [PMID: 25032226 PMCID: PMC4086256 DOI: 10.1155/2014/361419] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2014] [Accepted: 05/21/2014] [Indexed: 11/23/2022] Open
Abstract
The attention on CeO2-NPs environmental and in vivo effects is due to their presence in diesel exhaust and in diesel filters that release a more water-soluble form of ceria NPs, as well as to their use for medical applications. In this work, acute and subacute in vivo toxicity assays demonstrate no lethal effect of these NPs. Anyhow, performing in vivo evaluations on CD-1 mouse systems, we demonstrate that it is even not correct to assert that ceria NPs are harmless for living systems as they can induce status of inflammation, revealed by hematological-chemical-clinical assays as well as histological and TEM microscope observations. TEM analysis showed the presence of NPs in alveolar macrophages. Histological evaluation demonstrated the NPs presence in lungs tissues and this can be explained by assuming their ability to go into the blood stream and lately into the organs (generating inflammation).
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40
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The influence of surface charge and photo-reactivity on skin-permeation enhancer property of nano-TiO2 in ex vivo pig skin model under indoor light. Int J Pharm 2014; 467:90-9. [DOI: 10.1016/j.ijpharm.2014.03.052] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2014] [Revised: 03/26/2014] [Accepted: 03/27/2014] [Indexed: 01/08/2023]
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The β-SiC nanowires (~100 nm) induce apoptosis via oxidative stress in mouse osteoblastic cell line MC3T3-E1. BIOMED RESEARCH INTERNATIONAL 2014; 2014:312901. [PMID: 24967352 PMCID: PMC4055168 DOI: 10.1155/2014/312901] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/23/2013] [Revised: 11/26/2013] [Accepted: 11/28/2013] [Indexed: 11/17/2022]
Abstract
Silicon carbide (SiC), a compound of silicon and carbon, with chemical formula SiC, the beta modification ( β-SiC), with a zinc blende crystal structure (similar to diamond), is formed at temperature below 1700°C. β-SiC will be the most suitable ceramic material for the future hard tissue replacement, such as bone and tooth. The in vitro cytotoxicity of β-SiC nanowires was investigated for the first time. Our results indicated that 100 nm long SiC nanowires could significantly induce the apoptosis in MC3T3-E1 cells, compared with 100 μm long SiC nanowires. And 100 nm long SiC nanowires increased oxidative stress in MC3T3-E1 cells, as determined by the concentrations of MDA (as a marker of lipid peroxidation) and 8-OHdG (indicator of oxidative DNA damage). Moreover, transmission electron microscopy (TEM) was performed to evaluate the morphological changes of MC3T3-E1 cells. After treatment with 100 nm long SiC nanowires, the mitochondria were swelled and disintegrated, and the production of ATP and the total oxygen uptake were also decreased significantly. Therefore, β-SiC nanowires may have limitations as medical material.
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Wiącek AE, Anitowska E, Delgado AV, Hołysz L, Chibowski E. The electrokinetic and rheological behavior of phosphatidylcholine-treated TiO2 suspensions. Colloids Surf A Physicochem Eng Asp 2014. [DOI: 10.1016/j.colsurfa.2012.09.054] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Becker K, Schroecksnadel S, Geisler S, Carriere M, Gostner JM, Schennach H, Herlin N, Fuchs D. TiO(2) nanoparticles and bulk material stimulate human peripheral blood mononuclear cells. Food Chem Toxicol 2013; 65:63-9. [PMID: 24361406 PMCID: PMC3969306 DOI: 10.1016/j.fct.2013.12.018] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2013] [Revised: 12/09/2013] [Accepted: 12/11/2013] [Indexed: 12/17/2022]
Abstract
Effects on immunobiochemical pathways of TiO2 materials were investigated in vitro. TiO2 bulk and nanomaterial stimulated neopterin production in human PBMC. There was no stimulatory influence of particles on tryptophan breakdown. At high particles concentrations, tryptophan breakdown was suppressed. Results suggest that the total effect of particles is even stronger pro-inflammatory.
Nanomaterials are increasingly produced and used throughout recent years. Consequently the probability of exposure to nanoparticles has risen. Because of their small 1–100 nm size, the physicochemical properties of nanomaterials may differ from standard bulk materials and may pose a threat to human health. Only little is known about the effects of nanoparticles on the human immune system. In this study, we investigated the effects of TiO2 nanoparticles and bulk material in the in vitro model of human peripheral blood mononuclear cells (PBMC) and cytokine-induced neopterin formation and tryptophan breakdown was monitored. Both biochemical processes are closely related to the course of diseases like infections, atherogenesis and neurodegeneration. OCTi60 (25 nm diameter) TiO2 nanoparticles and bulk material increased neopterin production in unstimulated PBMC and stimulated cells significantly, the effects were stronger for OCTi60 compared to bulk material, while P25 TiO2 (25 nm diameter) nanoparticles had only little influence. No effect of TiO2 nanoparticles on tryptophan breakdown was detected in unstimulated cells, whereas in stimulated cells, IDO activity and IFN-γ production were suppressed but only at the highest concentrations tested. Because neopterin was stimulated and tryptophan breakdown was suppressed in parallel, data suggests that the total effect of particles would be strongly pro-inflammatory.
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Affiliation(s)
- Kathrin Becker
- Division of Biological Chemistry, Biocenter, Innsbruck Medical University, Innsbruck, Austria
| | | | - Simon Geisler
- Division of Biological Chemistry, Biocenter, Innsbruck Medical University, Innsbruck, Austria
| | - Marie Carriere
- Laboratoire Lesion des Acides Nucleiques, CEA Grenoble, Grenoble, France
| | - Johanna M Gostner
- Division of Medical Biochemistry, Biocenter, Innsbruck Medical University, Innsbruck, Austria
| | - Harald Schennach
- Central Institute of Blood Transfusion and Immunology, University Hospital, Innsbruck, Austria
| | - Nathalie Herlin
- Service des Photons, Atomes et Molécules, Laboratoire Francis Perrin (CEA CNRS URA 2453), Saclay, Gif-sur Yvette, France
| | - Dietmar Fuchs
- Division of Biological Chemistry, Biocenter, Innsbruck Medical University, Innsbruck, Austria.
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Jatana S, DeLouise LA. Understanding engineered nanomaterial skin interactions and the modulatory effects of ultraviolet radiation skin exposure. WILEY INTERDISCIPLINARY REVIEWS-NANOMEDICINE AND NANOBIOTECHNOLOGY 2013; 6:61-79. [PMID: 24123977 DOI: 10.1002/wnan.1244] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/21/2013] [Revised: 07/11/2013] [Accepted: 07/29/2013] [Indexed: 12/24/2022]
Abstract
The study of engineered nanomaterials for the development of technological applications, nanomedicine, and nano-enabled consumer products is an ever-expanding discipline as is the concern over the impact of nanotechnology on human environmental health and safety. In this review, we discuss the current state of understanding of nanomaterial skin interactions with a specific emphasis on the effects of ultraviolet radiation (UVR) skin exposure. Skin is the largest organ of the body and is typically exposed to UVR on a daily basis. This necessitates the need to understand how UVR skin exposure can influence nanomaterial skin penetration, alter nanomaterial systemic trafficking, toxicity, and skin immune function. We explore the unique dichotomy that UVR has on inducing both deleterious and therapeutic effects in skin. The subject matter covered in this review is broadly informative and will raise awareness of potential increased risks from nanomaterial skin exposure associated with specific occupational and life style choices. The UVR-induced immunosuppressive response in skin raises intriguing questions that motivate future research directions in the nanotoxicology and nanomedicine fields.
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Affiliation(s)
- Samreen Jatana
- Department of Biomedical Engineering, University of Rochester, Rochester, NY, USA
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45
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Borase HP, Patil CD, Suryawanshi RK, Patil SV. Ficus carica latex-mediated synthesis of silver nanoparticles and its application as a chemophotoprotective agent. Appl Biochem Biotechnol 2013; 171:676-88. [PMID: 23881781 DOI: 10.1007/s12010-013-0385-x] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2013] [Accepted: 07/01/2013] [Indexed: 11/26/2022]
Abstract
The present work provides scientific support on the use of latex of Ficus carica to synthesize stable silver nanoparticles (AgNPs). AgNPs synthesized immediately after the addition of latex to silver nitrate solution at room temperature. Synthesized nanoparticles were of spherical shape with average size of 163.7 nm. Fourier transform infrared spectroscopy analysis revealed capping of proteins and phenolic compound on AgNPs, while X-ray diffraction analysis confirmed the fcc nature of AgNPs. Particles formed were stable for a long time (6 months). It was found that incorporation of AgNPs with 2 and 4% concentration exhibits synergistic increase in sun protection factor of commercial sunscreen and natural extracts ranging from 01 to 12,175% than control. Further characterization of latex and AgNPs revealed total phenolic content of 98.75 and 94.88 μg/ml. The ferric ion reduction potentials of latex and AgNPs were 79.69 and 18.79%. Reduction potential of ascorbic acid was synergistically increased after cumulative preparation of ascorbic acid with latex and AgNPs and found to be 106.76 and 101.50% for ascorbic acid + latex and ascorbic acid + AgNPs, respectively.
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Affiliation(s)
- Hemant P Borase
- School of Life Sciences, North Maharashtra University, Post Box 80, Jalgaon, 425001, Maharashtra, India
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46
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Shi H, Magaye R, Castranova V, Zhao J. Titanium dioxide nanoparticles: a review of current toxicological data. Part Fibre Toxicol 2013. [PMID: 23587290 DOI: 10.1186/17438977-10-15] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/29/2023] Open
Abstract
Titanium dioxide (TiO2) nanoparticles (NPs) are manufactured worldwide in large quantities for use in a wide range of applications. TiO2 NPs possess different physicochemical properties compared to their fine particle (FP) analogs, which might alter their bioactivity. Most of the literature cited here has focused on the respiratory system, showing the importance of inhalation as the primary route for TiO2 NP exposure in the workplace. TiO2 NPs may translocate to systemic organs from the lung and gastrointestinal tract (GIT) although the rate of translocation appears low. There have also been studies focusing on other potential routes of human exposure. Oral exposure mainly occurs through food products containing TiO2 NP-additives. Most dermal exposure studies, whether in vivo or in vitro, report that TiO2 NPs do not penetrate the stratum corneum (SC). In the field of nanomedicine, intravenous injection can deliver TiO2 nanoparticulate carriers directly into the human body. Upon intravenous exposure, TiO2 NPs can induce pathological lesions of the liver, spleen, kidneys, and brain. We have also shown here that most of these effects may be due to the use of very high doses of TiO2 NPs. There is also an enormous lack of epidemiological data regarding TiO2 NPs in spite of its increased production and use. However, long-term inhalation studies in rats have reported lung tumors. This review summarizes the current knowledge on the toxicology of TiO2 NPs and points out areas where further information is needed.
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Affiliation(s)
- Hongbo Shi
- Public Health Department of Medical School, Zhejiang Provincial Key Laboratory of Pathological and Physiological Technology, Ningbo University, Ningbo, Zhejiang Province, 315211, PR China
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47
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Shi H, Magaye R, Castranova V, Zhao J. Titanium dioxide nanoparticles: a review of current toxicological data. Part Fibre Toxicol 2013; 10:15. [PMID: 23587290 PMCID: PMC3637140 DOI: 10.1186/1743-8977-10-15] [Citation(s) in RCA: 789] [Impact Index Per Article: 71.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2012] [Accepted: 04/02/2013] [Indexed: 01/19/2023] Open
Abstract
Titanium dioxide (TiO2) nanoparticles (NPs) are manufactured worldwide in large quantities for use in a wide range of applications. TiO2 NPs possess different physicochemical properties compared to their fine particle (FP) analogs, which might alter their bioactivity. Most of the literature cited here has focused on the respiratory system, showing the importance of inhalation as the primary route for TiO2 NP exposure in the workplace. TiO2 NPs may translocate to systemic organs from the lung and gastrointestinal tract (GIT) although the rate of translocation appears low. There have also been studies focusing on other potential routes of human exposure. Oral exposure mainly occurs through food products containing TiO2 NP-additives. Most dermal exposure studies, whether in vivo or in vitro, report that TiO2 NPs do not penetrate the stratum corneum (SC). In the field of nanomedicine, intravenous injection can deliver TiO2 nanoparticulate carriers directly into the human body. Upon intravenous exposure, TiO2 NPs can induce pathological lesions of the liver, spleen, kidneys, and brain. We have also shown here that most of these effects may be due to the use of very high doses of TiO2 NPs. There is also an enormous lack of epidemiological data regarding TiO2 NPs in spite of its increased production and use. However, long-term inhalation studies in rats have reported lung tumors. This review summarizes the current knowledge on the toxicology of TiO2 NPs and points out areas where further information is needed.
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Affiliation(s)
- Hongbo Shi
- Public Health Department of Medical School, Zhejiang Provincial Key Laboratory of Pathological and Physiological Technology, Ningbo University, Ningbo, Zhejiang Province, 315211, P. R. China
| | - Ruth Magaye
- Public Health Department of Medical School, Zhejiang Provincial Key Laboratory of Pathological and Physiological Technology, Ningbo University, Ningbo, Zhejiang Province, 315211, P. R. China
| | - Vincent Castranova
- Pathology and Physiology Research Branch, Health Effects Laboratory Division, National Institute for Occupational Safety and Health, Morgantown, WV, 26505, USA
| | - Jinshun Zhao
- Public Health Department of Medical School, Zhejiang Provincial Key Laboratory of Pathological and Physiological Technology, Ningbo University, Ningbo, Zhejiang Province, 315211, P. R. China
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Faure B, Salazar-Alvarez G, Ahniyaz A, Villaluenga I, Berriozabal G, De Miguel YR, Bergström L. Dispersion and surface functionalization of oxide nanoparticles for transparent photocatalytic and UV-protecting coatings and sunscreens. SCIENCE AND TECHNOLOGY OF ADVANCED MATERIALS 2013; 14:023001. [PMID: 27877568 PMCID: PMC5074370 DOI: 10.1088/1468-6996/14/2/023001] [Citation(s) in RCA: 113] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/25/2013] [Accepted: 03/21/2013] [Indexed: 05/21/2023]
Abstract
This review describes recent efforts on the synthesis, dispersion and surface functionalization of the three dominating oxide nanoparticles used for photocatalytic, UV-blocking and sunscreen applications: titania, zinc oxide, and ceria. The gas phase and liquid phase synthesis is described briefly and examples are given of how weakly aggregated photocatalytic or UV-absorbing oxide nanoparticles with different composition, morphology and size can be generated. The principles of deagglomeration are reviewed and the specific challenges for nanoparticles highlighted. The stabilization of oxide nanoparticles in both aqueous and non-aqueous media requires a good understanding of the magnitude of the interparticle forces and the surface chemistry of the materials. Quantitative estimates of the Hamaker constants in various media and measurements of the isoelectric points for the different oxide nanoparticles are presented together with an overview of different additives used to prepare stable dispersions. The structural and chemical requirements and the various routes to produce transparent photocatalytic and nanoparticle-based UV-protecting coatings, and UV-blocking sunscreens are described and discussed.
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Affiliation(s)
- Bertrand Faure
- Department of Materials and Environmental Chemistry, Arrhenius Laboratory, Stockholm University, SE-106 91 Stockholm, Sweden
| | - German Salazar-Alvarez
- Department of Materials and Environmental Chemistry, Arrhenius Laboratory, Stockholm University, SE-106 91 Stockholm, Sweden
| | - Anwar Ahniyaz
- YKI, Ytkemiska Institutet, Institute for Surface Chemistry, Drottning Kristinas Väg 45, SE-114 86 Stockholm, Sweden
| | - Irune Villaluenga
- Sustainable Construction Division, TECNALIA, Parque Tecnológico de Bizkaia, C/Geldo, Edificio 700, E-48160 Derio-Bizkaia, Spain
| | - Gemma Berriozabal
- Sustainable Construction Division, TECNALIA, Parque Tecnológico de Bizkaia, C/Geldo, Edificio 700, E-48160 Derio-Bizkaia, Spain
| | - Yolanda R De Miguel
- Sustainable Construction Division, TECNALIA, Parque Tecnológico de Bizkaia, C/Geldo, Edificio 700, E-48160 Derio-Bizkaia, Spain
| | - Lennart Bergström
- Department of Materials and Environmental Chemistry, Arrhenius Laboratory, Stockholm University, SE-106 91 Stockholm, Sweden
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Cytotoxicity and genotoxicity of ceria nanoparticles on different cell lines in vitro. Int J Mol Sci 2013; 14:3065-77. [PMID: 23377016 PMCID: PMC3588031 DOI: 10.3390/ijms14023065] [Citation(s) in RCA: 95] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2012] [Revised: 01/04/2013] [Accepted: 01/21/2013] [Indexed: 12/13/2022] Open
Abstract
Owing to their radical scavenging and UV-filtering properties, ceria nanoparticles (CeO2-NPs) are currently used for various applications, including as catalysts in diesel particulate filters. Because of their ability to filter UV light, CeO2-NPs have garnered significant interest in the medical field and, consequently, are poised for use in various applications. The aim of this work was to investigate the effects of short-term (24 h) and long-term (10 days) CeO2-NP exposure to A549, CaCo2 and HepG2 cell lines. Cytotoxicity assays tested CeO2-NPs over a concentration range of 0.5 μg/mL to 5000 μg/mL, whereas genotoxicity assays tested CeO2-NPs over a concentration range of 0.5 μg/mL to 5000 μg/mL. In vitro assays showed almost no short-term exposure toxicity on any of the tested cell lines. Conversely, long-term CeO2-NP exposure proved toxic for all tested cell lines. NP genotoxicity was detectable even at 24-h exposure. HepG2 was the most sensitive cell line overall; however, the A549 line was most sensitive to the lowest concentration tested. Moreover, the results confirmed the ceria nanoparticles’ capacity to protect cells when they are exposed to well-known oxidants such as H2O2. A Comet assay was performed in the presence of both H2O2 and CeO2-NPs. When hydrogen peroxide was maintained at 25 μM, NPs at 0.5 μg/mL, 50 μg/mL, and 500 μg/mL protected the cells from oxidative damage. Thus, the NPs prevented H2O2-induced genotoxic damage.
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Tu M, Abbood HA, Zhu Z, Li H, Gao Z. Investigation of the photocatalytic effect of zinc oxide nanoparticles in the presence of nitrite. JOURNAL OF HAZARDOUS MATERIALS 2013; 244-245:311-321. [PMID: 23270955 DOI: 10.1016/j.jhazmat.2012.11.048] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/18/2012] [Revised: 11/17/2012] [Accepted: 11/21/2012] [Indexed: 06/01/2023]
Abstract
Zinc oxide nanoparticles are widely used in sunscreen products because of their chemical stability and capability of blocking harmful ultraviolet rays. However, zinc oxide nanoparticles can also generate reactive species under ultraviolet irradiation. Because nitrite can form reactive nitrogen species under oxidative stress and because it exists in perspiration and cosmetics, we studied the effects of nitrites on the photocatalytic damage of zinc oxide nanoparticles (50 nm and 90 nm) to bovine serum albumin and human keratinocyte cells under ultraviolet irradiation (365 nm and 254 nm). The results indicate that nitrite plays an enhancing role in photocatalytic damage by breaking amino acid residues and promoting protein oxidation and nitration. The concentrations of zinc oxide and nitrite, the irradiation light and duration, and the pH of the medium are important factors influencing this photocatalytic damage. Size effects of ZnO nanoparticles on bovine serum albumin and keratinocyte cells are different. It is speculated that the extent of photo-damage is partially dependent on the aggregation of zinc oxide. These findings may be valuable for understanding potential risks of applying zinc oxide nanoparticle-containing sunscreens to human skin under sunlight exposure.
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Affiliation(s)
- Min Tu
- School of Chemistry and Chemical Engineering, Huazhong University of Science & Technology, 1037 Luoyu Road, Wuhan 430074, People's Republic of China
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