Type of NP Size and form Experimental design/genotoxic tests Summary of findings References Carbons C60 0.92βm2/g surface area Ames test No mutagenic response, and no incidence of chromosomal aberration Shinohara et al.; 2009 [17 ] C60 polyhydroxylated CHO-K1 cells chromosome aberration assay CBMN test No genotoxicity at all doses (11β221
π
M) MrdanoviΔ et al., 2009 [24 ] C60 nanospheres Mouse primary embryo fibroblasts Dihydrorhodamine 123 radical probe Increased mutation yield and induces kilo-based pair deletion mutations in transgenic mouse cells. Dose-dependent formation of ONOO- Xu et al.; 2009 [25 ] SWCNT -MWSCNT nanotubes Human lymphocytes in culture CBMN test Sister Chromatid Exchange (SCE) assay No genotoxicity effects but SWCNT induces mitotic inhibition Szendi and Varga; 2008 [19 ] MWSCNT agglomerates V79 cells treated for 18βh and 30βh at 2.5, 5 and 10
π
g/mL. Chromosome aberration test Ames test No mutagenic or clastogenic effects Wirnitzer et al., 2009 [26 ] MWSCNT nanotubes Ames test on Salmonella typhimurium TA 98 and TA 100 strains, and on Escherichia coli WP2uvrA strain, in presence and in absence of the metabolic activation system S9 No mutagenic effects Di Sotto et al.; 2009, [27 ] C60 SWCNT Carbon black (CB) 0.7βnm (C60) 0.9β1.7βnm (SWCNT) 14βnm (CB) FE1-muta trademark mouse lung epithelial cell line comet assay FE1-MML mutagenicity analysis c11 mutation analysis No cell death. Slower proliferation and cell-cycle arrest at G1 with SWCNT. Mutant frequency unaffected by 576βh exposure Jacobsen et al., 2008 [28 ] Metals Alumina (
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l
2
O
3
) Cobalt Chromium alloy (CoCr) bare Human primary fibroblasts over 5 days CBMN assay gamma-H2AX immuno staining cytogenetic analysis (FISH) At 24βh,
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l
2
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increase micronucleus binucleated cells, chromosomal loss, gain, and polyploidy. At 24βh, CoCr induce dose-dependent increase in micronucleus binucleated cells, chromosomal loss, gain, deletions, and polyploidy. Tsaousi et al.; 2010, [29 ] Co 20βnm 500βnm Balb/3T3 cells at 1β100
π
M dose concentrations. CBMN test Comet assay Significant results for CBMN and comet assay but no dose-dependency. Increase of type III foci Ponti et al.; 2009 [30 ] Co 100β500βnm Peripheral blood leulocytes at 24, 48βh timepoints in 10β5 M and 10β4 M dose concentrations CBMN test Comet assay Induces DNA damage Genotoxic effects modulated by donor characteristics and/or Co2+ release. Colognato et al.; 2008 [31 ]
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nanoparticles CHO-K1 cells Micronucleus (MN) test Sister chromatid exchange (SCE) MN frequencies increase at 0.5 and 1
π
g/mL TiO2 and 0.5β10
π
g/mL AL2O3. SCE higher at 1β5
π
g/mL TiO2 treatment, and at 1β25
π
g/mL
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Di Virgillio et al.; 2010 [32 ]
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rutile/anatase fine rutile Human bronchial epithelial cells (BEAS 2B) with 1β100
π
g/cm2 at 24, 48, and 72βh. Comet assay MN test Both induce DNA damage at all treatment times. Only nanosize rutile increase frequency of MN cells at 10, 60
π
g/cm2 , 72βh. Falck et al.; 2009 [33 ]
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with p,pβ²-DDT Human embryo L-02 hepatocyte 0.01, 0.1, 1
π
g/mL treatment concentrations Flow cytometry with DCFH-DA probe 8OHdG analysis Comet assay MN test
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enhances photocatalysis. Increases oxidative stress, DNA adducts, DNA strand breaks, and chromosome damageShi et al.; 2010 [34 ]
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2β30βnm (mean at 15βnm) NIH3T3 human fibroblasts HFW cells Short-term treatment at 24, 48 and 72βh. Long-term treatment, cell passage every 3 days with NP media. Flow cytometry with H2DCFDA probes Short-term increased cell survival and growth. Long-term G2 /M delay and slower cell-division with aberrant multipolar spreads. Overall disturbance in cell-cycle progression, duplicate genome segregation, and chromosomal instability Huang et al.; 2009 [35 ] Cell-cycle analysis Cell-division analysis Confocal microscopy
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anatase <100βnm <100βnm Human lung fibroblasts IMR-90 and BEAS-2B cells Electron paramagnetic resonance (EPR) 8-OHdG analysis
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treatment showed no DNA breakage, DNA adduct nor free radical generation.
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e
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had significant DNA damage after 24βh in IMR-90 cellsBhattacharya et al.; 2009 [36 ]
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nanoparticles rutile anatase Mouse primary embryo fibroblasts Dihydrorhodamine 123 radical probe Increased mutation yield and induces kilo-based pair deletion mutations in transgenic mouse cells. Dose-dependent formation of ONOO- Xu et al.; 2009 [25 ]
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2
100βnm Human lymphoblastoid cells. Treatment with 26, 65, 130
π
g/mL at 6, 24, 48βh. CBMN test Comet assay Hypoxanthine-guanine phosphoribosyltransferase (HPRT) gene mutation assay 130
π
g/mL treatment increases MNBC frequency 2-3 folds and 2.5 fold in mutation frequency. 65
π
g/mL treatment induce 5 fold increase in comet tail moments Wang et al.; 2007 [37 ] ZnO nanospheres Human epidermal cell line (A431) Treatment at 0.8, 0.008g/mL Comet assay Significant DNA damage in comet assay. Induces oxidative stress Sharma et al.; 2009 [38 ] Ag 30βnm, nanospheres Medaka fish cell lines Treatment at 0.05, 0.1, 0.3
π
g/cm2 Chromosomal aberration and aneuploidy Wise et al.; 2010 [39 ] Ag 6β20βnmstarch coated IMR-90 and human glioblastoma cells U251 Comet assay CBMN Annexin V propidium iodide staining DNA aberrations more prominent in cancer cells with more chromosomal aberrations. Asharani et al.; 2009 [40 ] Ag 25βnm polysaccharide surface functionalized and uncoated nanospheres Mouse embryonic stem cells and embryonic fibroblasts Immuno blot Immunoflorescence Upregulation of p53, Rad 51 and phosphorylated H2AX protein expression. Coated AgNP show more severe damage than uncoated AgNP Ahamed et al.; 2008 [41 ] Au 20βnm Serum coated Human fetal lung fibroblasts cells (MRC-5) treated with nAu at 0, 0.5 and 1βnm concentrations. 8-OHdG analysis Significant DNA damage in 1βnm treatment compared to control. Li et al.; 2008 [42 ] Platinum (Pt NP) 5β8βnm capped with poly-vinyl alcohol Human cell line p53 activation, p21 downregulation. Increase of DNA damage, arrest at cell-cycle S phase and apoptosis Asharani et al.; 2010 [43 ] Other Nanomaterials Nanoceria (CeO2 ) nanoparticles Human lens epithelial cells at 5, 10
π
g/mL concentrations SCE Comet assay (alkaline) No DNA damage nor SCE Pierscionek et al.; 2010 [44 ] Polymer NP lyophilized PELGE and PLGAnp CHO cells MN test SCE No significant difference in MN assay and no cell-cycle delay. SCE found to be higher in 5 kinds of PELGE-NP than in negative controls He et al.; 2009 [45 ]