@article{Della2002silica,
  author = {Della and Kühn and Hotza},
  title = {Rice husk ash as an alternate source for active silica production},
  journal = {Materials Letters},
  year = {2002},
  doi = {10.1016/s0167-577x(02)00879-0},
  url = {https://doi.org/10.1016/s0167-577x(02)00879-0}
}

@article{SoleimaniDorcheh2008silica,
  author = {Soleimani Dorcheh and Abbasi},
  title = {Silica aerogel; synthesis, properties and characterization},
  journal = {Journal of Materials Processing Technology},
  year = {2008},
  doi = {10.1016/j.jmatprotec.2007.10.060},
  url = {https://doi.org/10.1016/j.jmatprotec.2007.10.060}
}

@article{Tang2012mesoporous,
  author = {Tang and Li and Chen},
  title = {Mesoporous Silica Nanoparticles: Synthesis, Biocompatibility and Drug Delivery},
  journal = {Advanced Materials},
  year = {2012},
  doi = {10.1002/adma.201104763},
  url = {https://doi.org/10.1002/adma.201104763}
}

@article{Rahman2012sol,
  author = {Rahman and Padavettan},
  title = {Synthesis of Silica Nanoparticles by Sol‐Gel: Size‐Dependent Properties, Surface Modification, and Applications in Silica‐Polymer Nanocomposites—A Review},
  journal = {Journal of Nanomaterials},
  year = {2012},
  doi = {10.1155/2012/132424},
  url = {https://doi.org/10.1155/2012/132424}
}

@article{Nelson1995biogenic,
  author = {Nelson and Tréguer and Brzezinski and others},
  title = {Production and dissolution of biogenic silica in the ocean: Revised global estimates, comparison with regional data and relationship to biogenic sedimentation},
  journal = {Global Biogeochemical Cycles},
  year = {1995},
  doi = {10.1029/95gb01070},
  url = {https://doi.org/10.1029/95gb01070}
}