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Bio High-Voltage Electron Microscope

Bio High-Voltage Electron Microscope Leading-edge Equipment Home

Equipment Introduction

Bio-HVEM has been in operation as a national co-utilization equipment in basic and applied sciences for 3-dimensional large area-high resolution structural analysis of cell organelles, proteins, and bio-nano specimens as well as development of drug and nano materials.

Characteristics of the Equipment

  • 3D modeling of cell organelles by high tilting (±70°) and high resolution (0.15 nm)
  • Enhanced contrast imaging using high accelerating voltage / in-column energy filter
  • Analysis of Enhanced large-area with high resolution by Limitless panorama function
  • Cryo-EM analysis by rapid and continuous freezing of biological specimen

Representative Research Case

3D Reconstruction and modeling of helical assembly of peptide programmable nanoparticles by Bio-HVEM analytical system

3D reconstruction of Peptide programmable nanoparticle superstructure through Bio-high voltage electron microscope (Bio-HVEM) system and 3D Electron tomography with high-resolution and high-tilting angle.

The tilt series of AuPt/HC/SWNT superstructure images were recorded with an interval of 2° by electron tomography of Bio-HVEM. 3D tomogram and model were sequentially reconstructed from aligned tilt series images

Application

  • 3D ultrastructural analysis of thick(>1 μm) bio-nano materials using electron tomography
  • 3D large area analysis of bio-nano materials using limitless panorama

Representative Research Papers

  • Peroxiredoxin5 Controls Vertebrate Ciliogenesis by Modulating Mitochondrial Reactive Oxygen Species
    Ji, Y.R., Chae, S.M., Lee, H.K., Park, I.J., Kim, C.W., Ismail, T., Kim, Y., Park, J.W., Kwon, O.S., Kang, B.S., Lee,  D.S., Bae, J.S., Kim, S.H., Moon, P.G., Baek, M.C., Park, M.J., Kil, I.S., Rhee, S.G., Kim, J., Huh, Y.H., Shin, J.Y., Min, K.J., Kwon, T.K., Jang, D.G., Woo, H.A., Kwon, T.J., Park, T.J., Lee, H.S., Antioxidants & Redox Signaling, 2019, 30 (14), doi:10.1089/ars.2018.7507
  • Early exposure to radiofrequency electromagnetic fields at 1850 MHz affects auditory circuits in early postnatal mice
    Kim, J.H., Huh, Y.H., Lee, J.-H., Jung, J.Y., Ahn, S.C., Kim, H.R., Scientific Reports, 2019, 9 (1), pp -, doi:10.1038/s41598-018-36868-1
  • Bioaccumulation of polystyrene nanoplastics and their effect on the toxicity of Au ions in zebrafish embryos
    Lee, W.S., Cho, H.-J., Kim, E., Huh, Y.H., Kim, H.-J., Kim, B., Kang, T., Lee, J.-S., Jeong, J., Nanoscale, 2019, 11 (7), pp 3200-3207, doi:10.1039/c8nr09321k
  • PDK4 Augments ER–Mitochondria Contact to Dampen Skeletal Muscle Insulin Signaling During Obesity
    Thoudam, T., Ha, C.-M., Leem, J., Chanda, D., Park, J.-S., Kim, H.-J., Jeon, J.-H., Choi, Y.-K., Liangpunsakul, S., Huh, Y.H., Kwon, T.-H., Park, K.-G., Harris, R.A., Park, K.-S., Rhee, H.-W., Lee, I.-K., Diabetes, 2019, 68 (3), pp 571-586, doi:10.2337/db18-0363
  • Peptide-Programmable Nanoparticle Superstructures with Tailored Electrocatalytic Activity
    Kang, E.S., Kim, Y.-T., Ko, Y.-S., Kim, N.H., Cho, G., Huh, Y.H., Kim, J.-H., Nam, J., Thach, T.T., Youn, D., Kim, Y.D., Yun, W.S., Degrado, W.F., Kim, S.Y., Hammond, P.T., Lee, J., Kwon, Y.-U., Ha, D.-H., Kim, Y.H., ACS Nano, 2018, 12 (7), pp 6554-6562, doi:10.1021/acsnano.8b01146
  • Feeding state regulates pheromone-mediated avoidance behavior via the insulin signaling pathway in Caenorhabditis elegans
    Ryu, L., Cheon, Y., Huh, Y.H., Pyo, S., Chinta, S., Choi, H., Butcher, R.A., Kim, K., EMBO Journal, 2018, 37 (15), pp -, doi:10.15252/embj.201798402
  • Construction of a 3D mammary duct based on spatial localization of the extracellular matrix
    Cho, Y., Moon, W.K., Kim, H.S., Na, K., Yang, J.H., Huh, Y.H., Kim, J.A., Chung, S., Lee, S.H., NPG Asia Materials, 2018, 10 (10), pp 970-981, doi:10.1038/s41427-018-0089-3
  • Changes in numbers and size of synaptic vesicles of cortical neurons induced by exposure to 835 MHz radiofrequency-electromagnetic field
    Ju Hwan Kim , Hyo-Jeong Kim , Da-Hyeon Yu, Hee-Seok Kweon, Yang Hoon Huh , Hak Rim Kim Published: October 18, (2017) doi: 10.1371/journal.pone.0186416
  • Early Pheromone Experience Modifies a Synaptic Activity to Influence Adult Pheromone Responses of C. elegans
    Hong M, Ryu L, Ow MC, Kim J, Je AR, Chinta S, Huh YH, Lee KJ, Butcher RA, Choi H, Sengupta P, Hall SE, Kim K, Curr Biol. 27(20), 3168-3177 (2017), doi: 10.1016/j.cub.2017.08.068
  • Development of LC3/GABARAP sensors containing a LIR and a hydrophobic domain to monitor autophagy
    You‐Kyung Lee, Yong‐Woo Jun, Ha‐Eun Choi, Yang Hoon Huh, Bong‐Kiun Kaang, Deok‐Jin Jang, Jin‐A Lee, The EMBO Journal, 36, 1100-1116 (2017), doi: 10.15252/embj.201696315
  • Long-term exposure to 835 MHz RF-EMF induces hyperactivity, autophagy and demyelination in the cortical neurons of mice
    Ju Hwan Kim,Da-Hyeon Yu, Yang Hoon Huh, Eun Ho Lee, Hyung-Gun Kim & Hak Rim Kim, Scientific Reports 7, Article number: 41129 (2017), doi: 10.1038/srep41129