Abstract
After slow progress in the efforts to develop phase plates for electron microscopes, functional phase plates with thin carbon films have recently been reported. An electron microscope enhanced with thin-film phase plates has practical advantages. It permits collecting high-contrast images of intact biological specimens without harsh and lengthy sample preparation, such as fixation, dehydration, resin-embedding, staining and thin-sectioning. This report reviews the state of the art for phase plates in biological electron microscopy and focuses upon the conditions required for functional thin-film phase plates. The current disadvantages of thin-film phase plates are also addressed and potential solutions are proposed.
Similar content being viewed by others
References
Aharonov Y, Bohm D (1959) Significance of electromagnetic potentials in the quantum theory. Phys Rev 115:485–491
Badde HG, Reimer L (1970) Der Einfluβ einer streuenden Phasenplatte auf das elektronen mikroskopische Bild. Z Naturforschg 25a:760–765
Balossier G, Bonnet N (1981) Use of elecrostatic phase plate in TEM. Transmission electron microscopy Improvement of phase and topographical contrast. Optik 58:361–376
Boersch H (1947) Über die Kontraste von Atomen in Electronenmikroskop. Z Naturforschg 2a:615–633
Born M, Wolf E (1999) Principle of optics, 7th edn. Cambridge University Press, Cambridge
Cambie R, Downing KH, Typke D, Glaeser RM, Jin J (2007) Design of a microfabricated, two-electrode phase-contrast element suitable for electron microscopy. Ultramicroscopy 107:329–339
Danev R, Nagayama K (2001) Transmission electron microscopy with Zernike phase plate. Ultramicroscopy 88:243–252
Danev R, Nagayama K (2004) Complex observation in electron microscopy. IV. Reconstruction of complex object wave from conventional and half plane phase plate image pair. J Phys Soc Jpn 73:2718–2724
Danev R, Nagayama K (2008) Single particle analysis based on Zernike phase contrast transmission electron microscopy. J Struc Biol 161:211–218
Danev R, Okawara H, Usuda N, Kametani K, Nagayama K (2002) A novel phase-contrast transmission electron microscopy producing high-contrast topographic images of weak objects. J Biol Phys 28:627–635
Danov K, Danev R, Nagayama K (2001) Electric charging of thin films measured using the contrast transfer function. Ultramicroscopy 87:45–54
Danov K, Danev R, Nagayama K (2002) Reconstruction of the electric charge density in thin films from the contrast transfer function measurements. Ultramicroscopy 90:85–95
Faget J, Fagot M, Ferre J, Fert C (1962) Microscopie electronique a contraste de phase. In: Proceedings of the 5th international congress electron microscopy A-7. Academic Press, New York
Fernandez-Moran H (1960) Low-temperature preparation techniques for electron microscopy of biological specimens based on rapid freezing with liquid helium II. Ann NY Acad Sci 85:689–713
Heuser JE, Reese TS, Dennis MJ, Jan Y, Jan L, Evans L (1979) Synaptic vesicle exocytosis captured by quick freezing and correlated with quantal transmitter release. J Cell Biol 81:275–300
Hosokawa F, Danev R, Arai Y, Nagayama K (2005) Transfer doublet and an elaborated phase plate holder for 120kV electron-phase microscope. J Electron Microsc 54:317–324
Huang SH, Wang WJ, Chang CS, Hwu YK, Kai JJ, Chen FR (2006) The fabrication and application of Zernike electrostatic phase plate. J Electron Mirosc 55:273–280
Johnson H, Parsons D (1973) Enhanced contrast in electron microscopy of unstained biological material. J Microsc 98:1–17
Kanaya K, Kawakatsu H, Ito K, Yotsumoto H (1958) Experiment on the electron phase microscope. J Appl Phys 29:1046–1049
Kaneko Y, Danev R, Nitta K, Nagayama K (2005) In vivo subcellular ultrastructures recognized with Hilbert-differential-contrast transmission electron microscopy. J Electron Microsc 54:79–84
Kaneko Y, Danev R, Nagayama K, Nakamoto H (2006) Intact carboxysome in a cyanobacterial cell visualized by Hilbert differential contrast transmission electron microscopy. J Bacteriol 188:805–808
Kaneko Y, Nitta K, Nagayama K (2007) Observation of in vivo DNA in ice embedded whole cyanobacterial cells by Hilbert differential contrast transmission electron microscopy (HDC-TEM). Plasma Fusion Res 54:79–85
Krawkow W, Siegel BM (1975) Phase contrast in electron microscope images with an electrostatic phase plate. Optik 42:245–268
Ludtke SJ, Chen DH, Song JL, Chuang DT, Chiu W (2004) Seeing GroEL at 6Å resolution by single particle electron cryomicroscopy. Structure 12:1129–1136
Majorovits E, Barton B, Schultheiß K, Perez-Willard F, Gerthsen D, Schröder RR (2007) Optimizing phase contrast in transmission electron microscopy with an electrostatic (Boersch) phase plate. Ultramicroscopy 107:213–226
Matumoto T, Tonomura A (1996) The phase constancy of electron waves traveling through Boersch’s electrostatic phase plate. Ultramicroscopy 63:5–10
Mott NF, Massey HSW (1965) The theory of atomic collisions, 3rd edn. Clarendon Press, Oxford
Nagayama K (2005a) Phase contrast enhancement with phase plates in electron microscopy. Ad Imaging Electr Phys 138:69–146
Nagayama K (2005b) A phase plate for electron microscopes and its fabrication method (in Japanese), JPN-patent application, Tokugan 2005–321402
Nomarski G (1952) Interferométre á polarization, French patent 1.059.123
Osakabe N, Nomura S, Matsuda T, Endo J (1985) Phase contrast electron microscope, JPN-patent application, Tokugan 1985–7048 (in Japanese)
Ranson NA, Farr GW, Roseman AM, Gowen B, Fenton WA, Horwich AL, Saibil HR (2001) ATP-bound states of GroEL captured by cryo-electron microscopy. Cell 107:869–879
Reimer L (1997) Transmission electron microscopy, 4th edn. Springer, Berlin
Saibil HR (2006) Allosteri signaling of ATP hydrolysis in GroEL–GroES complexes. Nat Struct Mol Biol 13:147–152
Scherzer O (1949) The theoretical resolution limit of the electron microscope. J Appl Phys 20:20–29
Shimada A, Niwa H, Tsujita K, Suetsugu S, Nitta K, Suetsugu KH, Akasaka R, Nishino Y, Toyama M, Chen L, Liu ZJ, Wang BC, Yamamoto M, Terada T, Miyazawa A, Tanaka A, Sugano S, Shirouzu M, Nagayama K, Takenawa T, Yokoyama S (2007) Curved EFC/F-BAR-domain dimers are joined end to end into a filament for membrane invagination in endocytosis. Cell 129:761–772
Sieber P (1974) High resolution electron microscopy with heated apertures and reconstruction of single-sideband micrographs. In: Proceedings of the 8th international congress electron microscopy, vol 1. Academic Press, New York, pp 274–275
Smith FH (1947) Microscopes, British patent 639 014, Class 97(i) CroupXX
Stagg SM, Lander GC, Pulokas J, Fellmann D, Cheng A, Qulspe JD, Mallick SP, Avila RM, Crragher B, Potter CS (2006) Automated cryoEM data acquisition and analysis of 284742 particles of GroEL. J Struct Biol 155:470–481
Tonomura A, Osakabe N, Matsuda T, Kawasaki T, Endo J, Yano S, Yamada H (1986) Evidence for Aharonov–Bohm effect with magnetic field completely shielded from electron wave. Phys Rev Lett 56:792–795
Unwin PNT (1970) An electrostatic phase plate for the electron microsope. Bunsen-Ges 74:1137–1141
Van Harreveld A, Crowell J (1964) Electron microscopy after rapid freezing on a metal surface and substitution fixation. Anat Rec 149:381–386
Willash D (1975) High resolution electron microscopy with profiled phase plates. Optik 44:17–36
Yasuta H, Okawara H, Nagayama K (2006) Aharonov–Bohm phase plate in transmission electron microscopy. In: Proceedings of the 16th international microscope congress, vol 1. Japan Society of Microscopy, Sapporo, p 90, 7 Sept 2006
Zernike F (1942) Phase contrast, a new method for the microscopic observation of transparent objects. Physica 9:686–698, 974–986
Acknowledgments
I am grateful to the following collaborators for their contributions to the development and biological application of phase-contrast TEM with phase plates: Development Radostin Danev, Krassimir Danov, Rasmus Schroeder, Shozo Sugitani, Hiroshi Okawara, Toshiyuki Itoh, Toshikazu Honda, Toshiaki Suzuki, Yoshiyasu Harada, Yoshihiro Arai, Fumio Hosokawa, Sohei Motoki, and Kazuo Ishizuka; and Applications Koji Nitta, Yasuko Kaneko, Hitoshi Nakamoto, Atsushi Shimada, Shigeyuki Yokoyama, Nobuteru Usuda, Kimie Atsuzawa, Ayami Nakazawa, and Kiyokazu Kametani. This work was supported in part by a Grant-in-Aid for Creative Scientific Research (No. 13GS0016) from the Ministry of Education, Culture, Sports, Science, and Technology of Japan.
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Nagayama, K. Development of phase plates for electron microscopes and their biological application. Eur Biophys J 37, 345–358 (2008). https://doi.org/10.1007/s00249-008-0264-5
Received:
Revised:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s00249-008-0264-5