JEOL 2800 TEM single holder damage on 6/30/2017. We are contacting vendors for repair.
2800 TEM single holder damage on 6/30/2017
//Category: Materials Characterization Center
//Kratos-SUPRA@UCI Update (11/23/2015)
//The Kratos-SUPRA has been restored to operational in most common modes (XPS, depth profiling). During this maintenance period, the x-ray gun filament was replaced, the low count rate issues was fixed by cleaning out the restrictors on the cooling water lines. Currently, the pressure of SAC is at ~2E-09 torr. A long bake-out of the system is planned and the schedule will be updated. We recommend to keep your “degassing” samples in the loadlock chamber to pump down until the pressure reaches mid E-07 torr, before transferring to SAC
I am proud to be part of the team at LEXI, IMRI and UCI to work and collaborate with you on this machine and other projects. Please do not hesitate to contact me with any issues, problems and questions related to your experiments and applications using the instrument.
Ich Tran
FEI XL-30 SEM computer (Sept 19-21) and EDS system upgrade
//FEI Engineer will upgrade the computer and imaging software for FEI XL-30 SEM from Sept 19 to 21. The EDS system upgrade will follow up. I will conduct a quick training to get current XL-30 SEM users familar with the new software soon. I am going to inform all current users to sign up for the training.
SEM Short Course Scheduled on Sept 22
//SEM short course: How to Get Best Result from FEI/Philips XL-30 FESEM
Date: 9/22/2010 (Wed)
9:30-12:00: SEM lecture, Room 3008 Calit2 Building
1:00pm-5:00pm: SEM demo and problem solving, Room 140, engineering Tower
Contact: jzheng@uci.edu (Dr. Jian-Guo Zheng)
The SEM in MC2 is a field emission gun machine (FEI/Philips XL-30) with a resolution of 2nm. This SEM is equipped with E-T SE detector, solid state BSE detector and an EDS system, enabling users to obtain information about sample surface morphology and (qualitative and quantitative) chemical composition. To help users to take advantage of its full capabilities, a SEM short course “How to Get Best Result from FEI/Philips XL-30 FESEM” is scheduled on Sept 22, 2010. All current XL-30 SEM users and potential users are welcome to attend the one-day short course. The short course consists of 2.5hrs lecture (SEM principles and operations) in the morning and 2-4hrs (problem solving) demo in the afternoon. If you are interested in the short course, please email Dr. Zheng at jzheng@uci.edu in advance. If users have specific problems with their samples, they are welcome to inform Dr. Zheng in advance. A few users’ samples will be selected for the demo section.
Dr. Zheng on vacation June 26-July 18
//Hi, Facility users,
My vacation is from June 26 to July 18. You may email me during my vacation, but my response might be delayed because of limited access to my email in China. For urgent facility issues, please contact Dr. Porter for Zeiss center business and Mr. Minje Sun for MC2 business. Good luck!
Congratulations to Mercè Dalmau (Prof. Szu-Wen Wang’s group
//
Congratulations to Mercè Dalmau (Prof. Szu-Wen Wang’s group). She published a paper “pH-Triggered Disassembly in a Caged Protein Complex” in Biomacromolecules in Oct 2009 (vol 10, iss 12, p3199-3206), where MC2 CM-20 TEM was used to reveal the structure and disassembly of the caged protein complex (see figures above). The results are significant progress toward the use of the caged protein complex as a drug delivery vehicle. This paper and related TEM images have been featured recently in “Research Highlights” of Biopolymers (Vol. 93, no. 2, 2010).
This has been her third paper since Dec 2008. Other two papers are “Thermostability and Molecular Encapsulation within an Engineered Caged Protein Scaffold” published in Biotechnology and Bioengineering in Oct 2008 (vol 101, iss 4, p554-664) and “Design of a pH-Dependent Molecular Switch in a Caged Protein Platform” in Nano Letters in Jan 2009 (vol 9, iss 1, p160-166). The former was highlighted in B&B’s “Spotlight” Feature and TEM images were selected as cover photo in December 2008 (see picture below).
It is a great achievement to publish three high quality papers in such a short period of time!
MC2 server backup/ completed on 2/10/2010
//Calit2 IT expert is going to make a ghost image of MC2 server tomorrow (10am-12). The MC2 reservation system will be down during this period of time. I will update you in comments.
XRD machine Problem 1/20/2010 fixed on 1/29/2010
//Hi, XRD users,
A X-ray diffractometer problem occurred this morning. After a brief check, I found that the problem might be associated with the X-ray generating system. I will talk with a service engineer to diagnose the reasons for the XRD problem tomorrow. The XRD machine will be down till it is fixed. I will add comments to this news to keep you posted as the XRD status changes.
Jian-Guo Zheng
TEM CCD camera Jan 8/removed Feb 1/Loaner camera installed OK
//TEM users:
TEM CCD camera lost some functions, but it is still working well at binning 1. Please use binning 1 instead of binning 2, 3 and 4. The image size for binning 1 is very big (11Mb for each image) , so please record TEM images only when necessary.
We will repair the camera and have it fully functional soon. If you have any questions, you may contact Dr. Zheng.