Microscope Facility
All of Hopkins
News & Status
2008-08-11 Wood Basic Science Bldg POWER OUTAGE (8/11-8/12)

2008-08-11 Wood Basic Science Bldg POWER OUTAGE (8/11-8/12)

2008-08-07 Physiology Building Power Outage 8/8-8/11

Staff Position Open &
Research Opportunities


Learning Microscopy for Research

Learning how to use microscopy for your research requires at least three steps:

  1. Conceptual: classwork to learn fundamental concepts for all microscopes
  2. Concrete: supervised, hands-on individualized training to operate a particular microscope or instrument
  3. Practice: certification so that you can practice and use the instrument on your own
  4. Specialized Techniques: one-on-one training for specialized and advanced techniques

By our current fee schedule, we charge users for all time staff spend on training or certification (see 2, 3, & 4, above). These charges are necessary to prevent frivolous or 'teach-me-just-in-case' requests for training.
 New for Fall 2007  These training/certification rates have dropped and are 15% lower than other supervised staff help.

Before you commit to a microscopy strategy, we strongly encourage you to make an appointment with us to discuss your research needs. It's a free service, and it can save a lot of anguish.


  1. Conceptual Learning (Formal Classes)
  2. Modern microscopy naturally splits into two modalities: electron microscopy vs. light and fluorescence microscopy. For each modality, we teach an introductory course that covers both fundamental and some advanced application concepts.

    These courses are intended for researchers that want to use these techniques in their own biomedical projects. We focus on how modern microscopy could have an impact on your research. Because real research applications requires real understanding, we suggest that you take the appropriate course before you enroll for basic one-on-one training.

    All courses will be taught by Dr. Kuo and the Facility staff, and are described below. Email us for more information.

    ME110.807: Fundamentals of Fluorescence and Confocal Microscopy
    How does a light and fluorescence microscope form an image? What are the limits of optical resolution and how does it mesh with digital imaging? What is fluorescence and why are dichroic mirrors important? What are the different types of confocal microscopy (laser-spot scanning, slit scanning, spinning disk), why are they special, and when is each appropriate? What are the other methods for high-resolution imaging (TIRF, deconvolution, etc) and what are the trade-offs? For live-cell imaging, what are the latest optical techniques (FRAP, FRET, uncaging, FLIM, etc), and which biological processes can they probe (trafficking, association/dissociation kinetics, second messenger signalling, membrane fusion, etc)?

    Next offering (annually): Fall 2007
    8 weeks, Tuesdays 1-3PM, 9/18/07 to 11/06/07, Bodian Room, Suite 2-200, 1830 Monument Street, School of Medicine.

    ME110.808: Essentials of Electron Microscopy
    How does an electron microscope form an image? What are the limits of electron microscopy resolution and how does it mesh with digital imaging? What are the different types of electron microscopy (transmission, scanning) and when is each appropriate? How are specimens prepared? Why are contrast agents used and what are the trade-offs? What are the latest electron microscopy techniques and which biological processes can they probe?

    Next offering (bi-annually): To Be Announced

    ME110.722: Principles of Light and Fluorescence Microscopy
    This is an advanced course for students wishing to understand state-of-the-art microscopy, perhaps to customize existing instruments. Students should have completed ME110.807 or have equivalent experience. In addition to a more rigorous presentation of the principles of optical image formation for multiple light and fluorescent microscopes, the theory behind "best-practices" in microscopy (Koehler illumination, infinity optics) are actively considered. Not only reviewing the electromagnetic wave nature of light, advanced topics such as Fourier optics, point-spread functions, and spherical aberration will be considered in the context of modern microscopy. The culmination is considering the instrumentation design choices in assembing a multiphoton fluorescence microscope.

    Next offering (bi-annually): To Be Announced

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  3. Concrete Learning (One-on-one Advising and Training)
  4. Pre-arranged via appointments, the Microscope Facility offers both advising and one-on-one training:

    • Available at no cost, advisory meetings are available to discuss research and microscopy strategy. We have lots of experience, specialty software and accessories that can really help. In addition, discussing strategic feasibility in advance can save a lot of anguish!

    • For a fee, hands-on, basic one-on-one training is available to teach people how to use microscopes and preparing specimens for electron microscopy. Advanced individualized training in specialized techniques is appropriate after mastering basic training.

    Our goal in basic one-on-one training is to make sure you can operate equipment with minimal sufficiency and safety. Microscopes, particularly laser-scanning confocal microscopes, are complicated instruments, so don't expect proficiency from a few hours of basic training. We are happy to provide additional training, particularly for specialized techniques, when you are ready for it.

    For basic training on both microscopy and EM specimen preparation, we will guide you through instrument operation, care and safety, allowing you to practice under our supervision. In particular, we are concerned about safety for you and for the equipment. These form the basis of certification testing.

    For basic training on the microscopes, we will also teach you the controls that affect the quality of images. In particular, we will emphasize the issues that are relevant for your research goals.

    The more experienced you are, the less time the basic training will take. Similarly, the more concepts you understand (see coursework), the less time the basic training will take. More than one person can observe a training session. However, only one person can operate the equipment at a time, particularly during supervised practice and during certification testing.

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  5. Unsupervised Practice and Use (Certification)
  6. Before we can allow you to practice and use the microscope on your own, we must certify that you've been appropriately trained in basic operations. Please make an appointment with us to schedule time for certification.

    For certification, we will observe you while you operate the instrument from start to finish, completely on your own. All safety and Facility logging procedures must be observed. The whole testing process must be scheduled in advance, and can take 15-30 minutes, depending on the complexity of the instrument.

    If you pass the test by safely operating the equipment and observing all Facility logging procedures, you are "certified" and allowed unsupervised use of the instrument. After certification, we will grant you access unsupervised access to the equipment (reservations via webcalendar).

    For novice users that recently passed certification, we recommend that you reserve and use equipment during standard business hours. If you have any problems or questions, we are happy to help you troubleshoot (no charge), but we are here only during standard business hours.

    If there is a long lapse (>6 weeks) without using equipment immediately after certification, we reserve the right to withdraw a user's certification. There's just no way to remember a complicated process without practicing! In addition, we reserve the right to revoke a person's certification should they repeatedly damage equipment, flaunt safety issues, or flaunt Facility procedures.

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  7. Specialized Techniques (One-on-one training)
  8. Once you've built confidence that you can do the basics, it's natural to consider specialized or advanced techniques on Facility equipment. These include FRAP (Fluorescence Recovery After Photobleaching), FRET (Forster-fluorescence Resonance Energy Transfer) and TIRF (Total Internal Reflection Fluorescence). Presumably, you've already gotten the concepts and principles elsewhere (particularly from our classes).

    Even if you already understand the concepts, using these techniques and getting results takes a significant amount of time. In addition, we have custom-written sofware that goes beyond the commercial software for the quantitative analysis of these and other experiments. Schedule an advanced training session with us and we will walk you through the technique in a one-on-one setting.

    Learning microscopy is an ongoing endeavor. The technical envelope of feasibility is always expanding and improving. Learn how to harness these ever-more powerful techniques in your research!

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