| # | Title | Journal | Year | Citations |
|---|
| 1 | Occurrence, fate, and removal of pharmaceutical residues in the aquatic environment: a review of recent research data | Toxicology Letters | 2002 | 2,474 |
| 2 | Toxicity determined in vitro by morphological alterations and neutral red absorption | Toxicology Letters | 1985 | 1,723 |
| 3 | Nanosilver: A nanoproduct in medical application | Toxicology Letters | 2008 | 1,624 |
| 4 | Arsenic toxicity and potential mechanisms of action | Toxicology Letters | 2002 | 1,355 |
| 5 | In vitro cytotoxicity assays: Comparison of LDH, neutral red, MTT and protein assay in hepatoma cell lines following exposure to cadmium chloride | Toxicology Letters | 2006 | 1,190 |
| 6 | In vitro toxicity evaluation of graphene oxide on A549 cells | Toxicology Letters | 2011 | 1,149 |
| 7 | Toxicity of iron and hydrogen peroxide: the Fenton reaction | Toxicology Letters | 1995 | 1,026 |
| 8 | Acute toxicity and biodistribution of different sized titanium dioxide particles in mice after oral administration | Toxicology Letters | 2007 | 973 |
| 9 | Carbon nanotubes show no sign of acute toxicity but induce intracellular reactive oxygen species in dependence on contaminants | Toxicology Letters | 2007 | 925 |
| 10 | A global perspective on cadmium pollution and toxicity in non-occupationally exposed population | Toxicology Letters | 2003 | 899 |
| 11 | Update of survey, regulation and toxic effects of mycotoxins in Europe | Toxicology Letters | 2002 | 851 |
| 12 | Acute toxicological effects of copper nanoparticles in vivo | Toxicology Letters | 2006 | 825 |
| 13 | Size-dependent toxicity of metal oxide particles—A comparison between nano- and micrometer size | Toxicology Letters | 2009 | 823 |
| 14 | Functionalization density dependence of single-walled carbon nanotubes cytotoxicity in vitro | Toxicology Letters | 2006 | 810 |
| 15 | Aquatic ecotoxicity of pharmaceuticals including the assessment of combination effects | Toxicology Letters | 2003 | 787 |
| 16 | Effect of single wall carbon nanotubes on human HEK293 cells | Toxicology Letters | 2005 | 773 |
| 17 | The apoptotic effect of nanosilver is mediated by a ROS- and JNK-dependent mechanism involving the mitochondrial pathway in NIH3T3 cells | Toxicology Letters | 2008 | 752 |
| 18 | The degree and kind of agglomeration affect carbon nanotube cytotoxicity | Toxicology Letters | 2007 | 732 |
| 19 | Multi-walled carbon nanotube interactions with human epidermal keratinocytes | Toxicology Letters | 2005 | 702 |
| 20 | Free heme toxicity and its detoxification systems in human | Toxicology Letters | 2005 | 695 |
| 21 | Toxicity of silver nanoparticles—Nanoparticle or silver ion? | Toxicology Letters | 2012 | 661 |
| 22 | Cellular responses induced by silver nanoparticles: In vitro studies | Toxicology Letters | 2008 | 634 |
| 23 | Multi-walled carbon nanotubes induce T lymphocyte apoptosis | Toxicology Letters | 2006 | 622 |
| 24 | Silver nanoparticles induce oxidative cell damage in human liver cells through inhibition of reduced glutathione and induction of mitochondria-involved apoptosis | Toxicology Letters | 2011 | 582 |
| 25 | Particle surface characteristics may play an important role in phytotoxicity of alumina nanoparticles | Toxicology Letters | 2005 | 579 |
| 26 | PVP-coated silver nanoparticles and silver ions induce reactive oxygen species, apoptosis and necrosis in THP-1 monocytes | Toxicology Letters | 2009 | 572 |
| 27 | Fine particles and human health—a review of epidemiological studies | Toxicology Letters | 2004 | 570 |
| 28 | Direct and indirect effects of single walled carbon nanotubes on RAW 264.7 macrophages: Role of iron | Toxicology Letters | 2006 | 535 |
| 29 | Role of the dissolved zinc ion and reactive oxygen species in cytotoxicity of ZnO nanoparticles | Toxicology Letters | 2010 | 529 |
| 30 | DNA damaging potential of zinc oxide nanoparticles in human epidermal cells | Toxicology Letters | 2009 | 526 |
| 31 | Oxidative stress and apoptosis induced by titanium dioxide nanoparticles in cultured BEAS-2B cells | Toxicology Letters | 2008 | 485 |
| 32 | Mycotoxin detoxication of animal feed by different adsorbents | Toxicology Letters | 2001 | 481 |
| 33 | Enzymes involved in the detoxification of organophosphorus, carbamate and pyrethroid insecticides through hydrolysis | Toxicology Letters | 2002 | 476 |
| 34 | Methylglyoxal in living organisms | Toxicology Letters | 1999 | 465 |
| 35 | Biochemical effects of some pesticides on lipid peroxidation and free-radical scavengers | Toxicology Letters | 1999 | 462 |
| 36 | Development of a base set of toxicity tests using ultrafine TiO2 particles as a component of nanoparticle risk management | Toxicology Letters | 2007 | 459 |
| 37 | Oxidative stress and pro-inflammatory responses induced by silica nanoparticles in vivo and in vitro | Toxicology Letters | 2009 | 446 |
| 38 | Multiple pathways of peroxynitrite cytotoxicity | Toxicology Letters | 2003 | 423 |
| 39 | Cellular and molecular mechanisms for immune modulation by deoxynivalenol and other trichothecenes: unraveling a paradox | Toxicology Letters | 2004 | 420 |
| 40 | Silver nanoparticles: Evaluation of DNA damage, toxicity and functional impairment in human mesenchymal stem cells | Toxicology Letters | 2011 | 419 |
| 41 | Mitochondrial regulation of apoptotic cell death | Toxicology Letters | 2004 | 417 |
| 42 | Bisphenol A is released from polycarbonate drinking bottles and mimics the neurotoxic actions of estrogen in developing cerebellar neurons | Toxicology Letters | 2008 | 415 |
| 43 | Long-term accumulation and low toxicity of single-walled carbon nanotubes in intravenously exposed mice | Toxicology Letters | 2008 | 409 |
| 44 | Combined toxic effects of mycotoxins | Toxicology Letters | 2004 | 406 |
| 45 | Toxicity and penetration of TiO2 nanoparticles in hairless mice and porcine skin after subchronic dermal exposure | Toxicology Letters | 2009 | 406 |
| 46 | The sorption and transport of a sulphonamide antibiotic in soil systems | Toxicology Letters | 2002 | 394 |
| 47 | Probabilistic hazard assessment of environmentally occurring pharmaceuticals toxicity to fish, daphnids and algae by ECOSAR screening | Toxicology Letters | 2003 | 389 |
| 48 | The role of oxidant stress and reactive nitrogen species in acetaminophen hepatotoxicity | Toxicology Letters | 2003 | 386 |
| 49 | Peroxynitrite-induced cytotoxicity: mechanism and opportunities for intervention | Toxicology Letters | 2003 | 379 |
| 50 | Aquatic ecotoxicology of fluoxetine | Toxicology Letters | 2003 | 379 |
