NIST Technicalendar April 6 to April 10, 2009 The NIST Technicalendar is issued each Friday. All items MUST be submitted electronically from this web page by 12:00 NOON each Wednesday unless otherwise stated in the NIST Technicalendar. The address for online weekly editions of the NIST Technicalendar and NIST Administrative Calendar is: http://www.nist.gov/tcal/.

In this Issue: Meetings at NIST Meetings Elsewhere Announcements Talks by NIST Personnel NIST Web Site Announcements NIST Administrative Calendar (current)   NIST Vacancy Announcements (current)

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10:30 AM - Astrochemistry in the New Millennium:Centers, Surveys and Databases
11:00 AM - "One Century's Magic, Another Century's Science": Thinking Inside the Modern Microanalytical Instrumentation Research Box

No Scheduled Events

10:00 AM - Squishy Physics: Probing the Structure of Soft Matter
10:30 AM - Radio Frequency Scanning Tunneling Microscopy

11:00 AM - Microscale manipulation of cells and their environment for cell sorting and stem cell biology

No Scheduled Events

4/6 -- MONDAY

10:30 AM - OPTICAL TECHNOLOGY DIVISION SEMINAR: Astrochemistry in the New Millennium:Centers, Surveys and Databases
Anthony Remijan , University of Virginia.
221 Bldg, Rm. B145. (NIST Contact: Francis Lovas, 301-975-2357, francis.lovas@nist.gov)

11:00 AM - MATERIALS SCIENCE AND ENGINEERING LABORATORY OFFICE SEMINAR: "One Century's Magic, Another Century's Science": Thinking Inside the Modern Microanalytical Instrumentation Research Box
"One Century's Magic, Another Century's Science": Thinking Inside The Modern Microanalytical Instrumentation Research Box Radislav A. Potyrailo General Electric Global Research Center, Niskayuna, NY New requirements for analytical measurements in gas and liquid phases for biomedical, industrial, environmental, homeland protection, and other demanding applications push the limits of existing detection concepts and technologies to the point where we may reach their fundamental performance limits. Thus, without violating the laws of physics, chemistry, and electronics and without crossing the border into the 21st century science fiction, we need to develop new practical analytical concepts. This lecture will stimulate your analytical senses by posing several fundamental and practical questions and demonstrating on how modern industrial research addresses these questions in the developments of analytical instrumentation with previously unthinkable capabilities.
Radislav Potyrailo , Ph.D. General Electric Global Research Center, Niskayuna, NY.
224 Bldg, Rm. A312. (NIST Contact: Michael Fasolka, 301-975-8526, michael.fasolka@nist.gov)


4/7 -- TUESDAY

No Scheduled Events

4/8 -- WEDNESDAY

10:00 AM - POLYMERS DIVISION SEMINAR: Squishy Physics: Probing the Structure of Soft Matter
From personal care products to the macromolecular assemblies that hold our cells together, soft materials abound in nature and industry. In this talk I will discuss how we measure the response of soft materials to external perturbations. Specifically, I will describe our results on the microscopic response of jammed particle systems and biological polymers when external stresses are applied macroscopically. Using time resolved laser scanning confocal microscopy coupled with bulk rheology, we are able to identify and track the motion of colloidal particles and biopolymer networks in three dimensions under a variety of conditions. In doing so, we are able to begin identifying the connection between the microstructure of non-equilibrium solids to their bulk properties.
Daniel Blair , Department of Physics, Georgetown University.
Polymer Building, Room A312. (NIST Contact: Erik Hobbie, 301-975-6774, erik.hobbie@nist.gov)

10:30 AM - ATOMIC PHYSICS DIVISION SEMINAR: Radio Frequency Scanning Tunneling Microscopy
Utku Kemiktarak , Doctoral candidate, Boston University.
221 Bldg, Rm. B145. (NIST Contact: John Lawall, 301-975-3226, john.lawall@nist.gov)


4/9 -- THURSDAY

11:00 AM - CELLULAR BIOMETROLOGY SEMINAR: Microscale manipulation of cells and their environment for cell sorting and stem cell biology
Microsystems have the potential to impact biology by providing new ways to manipulate cells and the microenvironment around them. Simply physically manipulating cells or their environment-using microfluidics, electric fields, or optical forces-provides new ways to separate cells and organize cell-cell interactions. Our lab is focused on using cell manipulation to sort cells following imaging and to study cell-cell interactions in stem cell self-renewal, differentiation, and nuclear reprogramming. For example, our lab has been developing methods that use optical forces to sort cells following microscopic imaging, enabling screens based upon dynamical and localization-based phenotypes. We have developed arrays of microfluidic perfusion culture chambers to provide a more controlled soluble microenvironment for embryonic stem cells, and have been using this system to study diffusible signaling in self-renewal and neuronal differentiation. We have also developed a simple microfluidic device that uses capture "cups" and a three-step back-and-forth loading procedure to pair thousands of cells in parallel in order to study cell fusion for reprogramming of cells. Finally, we have developed cell sensors that report on stress experienced by cells in microfluidic devices in order to minimize any harmful effects of microtechnology on cell physiology. Together, these tools provide news ways to exploit cells' potential for both basic science and applied biotechnology.
Joel Voldman , Associate Professoor, Department of Electrical Engineering & Computer Science, MIT, Boston, MA.
Administration Bldg, Lecture Rm. A. (NIST Contact: Michael Gaitan, 301-975-2070, gaitan@nist.gov)


4/10 -- FRIDAY

No Scheduled Events

ADVANCE NOTICE

4/14/09 9:00 AM - COMPUTER SECURITY DIVISION SEMINAR: 8h Symposium on Identity and Trust on the Internet
This year's annual symposium is more engaging and valuable than ever. We have panels that approach the questions of the day from diverse viewpoints. Topics include responding to the recent practical attacks on browser security and CAs that use md5 hashes; application-specific concerns; and the various alternatives for authentication, federation, authorization, and attribute management. Keynote presentations will come from security and systems wizard Peter Neumann of SRI, and from Dan Blum, identity guru at the Burton Group, who has just finished a major independent review of Federal Identity Management Programs. And of course as always we have cutting-edge researchers presenting new peer-reviewed papers on a wide variety of topics. Come, network with your colleagues, and consider bringing your own short talk for the Rump session.
Dan Blum , Burton Group. Peter Neumann , SRI International.
Administration Bldg, Green Auditorium. (NIST Contact: Sara Caswell, 301-975-4634, sara@nist.gov) http://middleware.internet2.edu/idtrust/2009/

4/21/09 10:00 AM - CERAMICS DIVISION SEMINAR: Nanoscale Mechanical Properties with Quantitative AFM Methods
MSEL NANOMECHANICS SEMINAR The superb spatial resolution and imaging capability of the atomic force microscope (AFM) make it an attractive tool for investigating nanoscale mechanical properties. One AFM method that shows promise for quantitative property data is contact resonance force microscopy (CR-FM). In this approach, the cantilever's resonant frequencies are measured while the tip is in contact in order to determine the local contact stiffness. Nanomechanical information is obtained from the contact stiffness with a suitable contact mechanics model. We will describe our work to develop CR-FM metrology and apply it to material systems. We explain the basic theoretical and experimental concepts, and show ways to implement them for accurate, reliable measurements in specific applications. New extensions of the original approach are also presented, for instance to enable measurement of viscoelastic properties. Work on quantitative imaging is also discussed. CR-FM images enable maps of the spatial distribution in properties, for instance to characterize the interphase region of a fiber-reinforced composite and to examine the adhesion of buried interfaces. Such mapping capabilities facilitate new studies of nanoscale mechanical behavior in a variety of emerging applications.
Donna Hurley , Materials Reliability Division, NIST/MSEL.
Materials Bldg, Rm. A250. (NIST Contact: Robert Cook, 301-975-3207, robert.cook@nist.gov)

4/27/09 12:00 PM - OPTICAL TECHNOLOGY DIVISION SEMINAR: Spectrophotometry Workshop
The Spectrophotometry Workshop, sponsored by the Optical Technology Division at NIST, targets engineers, scientists, technicians, managers, or others involved in the design or use of optical instrumentation, optical testing, or physical sciences in which optical properties of materials are important. The format of the workshop includes lectures and closely-related laboratory exercises. The purpose of the workshop is to familiarize the students with the fundamentals of science and technology related to the accurate measurement of optical properties of materials. Upon completion of the workshop, the student should have a good understanding of the theory and practice of spectrophotometry using dispersive and Fourier-transform techniques, as well as optical scatterometry. Particular emphasis is placed on the evaluation of uncertainties in transmittance, reflectance, and Bidirectional Reflectance Distribution Function (BRDF) measurements. To register, go to http://www.nist.gov/public_affairs/confpage/090427.htm and follow the instructions.
Simon Kaplan , Physicist. David W. Allen, Thomas A. Germer, Leonard M. Hannsen, Maria E. Nadal, Eric L. Shirley, Howard W. Yoon
Metrology Building, Room B343. (NIST Contact: Simon Kaplan, 301-975-2336, simon.kaplan@nist.gov) http://physics.nist.gov/Divisions/Div844/spsc.html

4/30/09 10:30 AM - CNST NANOFABRICATION RESEARCH GROUP SEMINAR: Materials Challenges in Nanostructured ZnO-Conjugated Polymer Photovoltaic Devices
It has been widely recognized that increasing the sources of clean energy is absolutely critical for maintaining living standards while halting environmental degradation. Solar energy holds a great promise as a clean energy source, but current technologies are too expensive for wide usage. In addition to traditional semiconductor solar cells, organic photovoltaics (OPVs) have been targeted for inexpensive, lightweight applications, such as consumer electronics and field deployable sensors. A subset of OPVs, called hybrid solar cells, uses a wide bandgap oxide semiconductor as the electron acceptor. They take advantage of the environmental stability and high electron mobilities of metal oxide semiconductors, while largely retaining the solution-based processing available to organic semiconductor devices. In addition, the use of ordered nanostructures increases the area of the heterojunction, resulting in increased dissociation of photogenerated excitons and collection of charges. We focus on nanostructured ZnO – polythiophene (P3HT) heterojuctions. The challenges are to form oxide nanostructures with spacings that match the exciton diffusion length in conjugated polymers (~ 10 nm), to infiltrate high-molecular weight polymer in the dense oxide matrix, and to achieve efficient charge transfer at the heterojunction interface. In this talk, I will discuss progress made on each of the challenges and discuss future directions.
Julia W. P. Hsu , Sandia National Laboratories.
Bldg. 217, Rm. H107. (NIST Contact: Nikolai Zhitenev, 301-975-6039, nikolai.zhitenev@nist.gov)

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MEETINGS ELSEWHERE


4/6 -- MONDAY

No Scheduled Events

4/7 -- TUESDAY

No Scheduled Events

4/8 -- WEDNESDAY

No Scheduled Events

4/9 -- THURSDAY

No Scheduled Events

4/10 -- FRIDAY

No Scheduled Events

ADVANCE NOTICE

4/15/09 8:30 AM - FIRST UNIVERSITY OF MARYLAND SYMPOSIUM ON THEORETICAL CHEMISTRY
The Department of Chemistry and Biochemistry, University of Maryland announces the First University of Maryland Symposium on Theoretical Chemistry to be held on April 15, 2009, on the topic "Water: From the Molecule to the Macroscopic." This one-day symposium will include invited presentations by Joel Bowman (Emory University), Millard Alexander (University of Maryland), Kenneth Jordan (University of Pittsburgh), Ilan Benjamin (University of California, Santa Cruz), John Weeks (University of Maryland), Lawrence Pratt (Tulane University), and a featured talk by James Skinner (University of Wisconsin) on the topic "Water: Hydrogen Bonding and Vibrational Spectroscopy, in the Bulk Liquid and at the Liquid/Vapor Interface."
. . , ..
Bldg, Rm..
Marker Seminar Room (Room 0112 Chemistry Bldg.), Department of Chemistry and Biochemistry. (NIST Contact: Millard Alexander, mha@umd.edu, .) http://www.chem.umd.edu/groups/alexander/theorysymposium1/

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TALKS BY NIST PERSONNEL

GAITAN, M. : INTEGRATION OF IC FOUNDRIES AND MEMS FABRICATION.
2009 Microsystems Technology Office Symposium, San Jose, Ca, 3/3.

ZEISSLER, C. : ADVANCED AUTORADIOGRAPHIC DETECTION AND ANALYSIS OF RADIONUCLIDE PARTICLES AND HETEROGENEITIES IN VARIOUS MATRICES.
MARC VIII, Kona, HI, 4/6.

PAGE, K. : STRUCTURE AND DYNAMICS IN NANOSCTRUCTURED POLYMERIC SYSTEMS FOR FUEL CELL APPLICATIONS.
University of Southern Mississippi, Hattiesburg, MS, 4/8.

WALLACE, W. : NEW APPROACHES IN DETERMINING SYSTEMATIC MEASUREMENT UNCERTAINTY: AN EXAMPLE IN POLYMER MASS SPECTROMETRY.
University of Akron, Akron, OH, 4/8.

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ANNOUNCEMENTS

VISITOR REGISTRATION FOR NIST EVENTS
Because of heightened security at the NIST Gaithersburg site, members of the public who wish to attend meetings, seminars, lectures, etc. must first register in advance. For more information please call or e-mail the "NIST Contact" for the particular event you would like to attend.
NIST Contact: . ., ., .

PUBLICATIONS PRINTING DEADLINE AUGUST 14, 2009
August 14 is the last day in FY 2009 to submit materials using FY 2009 funds to the Electronic Information and Publications Group (EIPG) for printing at the Department of Commerce or Government Printing Office. To assure timely processing, bring your Editorial Review Board-approved document or administrative printing job and appropriate paperwork to the EIPG office by close of business on Friday, August 14, 2009. The office is located on the mezzanine floor of the NIST Research Library in the Administration Building, Room E220. Questions? Ilse Putman, x2780 or Barbara Silcox, x2146.
NIST Contact: Ilse Putman, 301-975-2780, ilse.putman@nist.gov

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NIST WEB SITE ANNOUNCEMENTS

No Web Site announcements this week.

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For more information, contact Ms. Sharon Hallman, Editor, Stop 2500, National Institute of Standards and Technology, Gaithersburg MD 20899-2500; Telephone: 301-975-TCAL (3570); Fax: 301-926-4431; or Email: tcal@nist.gov.

All lectures and meetings are open unless otherwise stated.

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