We have lots of people in the EMU who are acquiring lovely images and great data. If you have an image that you think is good, please submit it to the EMU image of the month competition*. The prize is a $50 gift voucher from the UNSW book store. All submissions are voted on by EMU staff. Your winning entry will be displayed in the EMU and put onto our website.
To enter email your image to us in .tif format with:
- a brief description (2 - 3 sentences)
- your full name and your school/department
- your supervisor's name
- the microscope (and technique) that you used
*Only one submission per person per month.
Jon Berengut, Single Molecule Science, School of Medical Sciences
This micrograph depicts DNA origami nanostructures that have been made by designing and synthesising hundreds of single strands and allowing them to self-assemble into precise 3D structures. These blocks have four different-sized cavities for kinetic experiments and an asymmetric hole running through to establish orientation. Inset: A rendering of the design in which sections of double stranded DNA are depicted as cylinders.
Image by: Jon Berengut, Single Molecule Science, School of Medical Sciences
Instrument used: FEI Tecnai G2 20 TEM
Supervisor: Lawrence Lee
Shinyoung Noh, School of Photovoltaic and Renewable Energy Engineering (SPREE)
This image is cross-section view of Ag evaporated on Reactive Ion Etched(RIE) Silica particles on Si wafer. Originally, particles were spherical and closely-packed. RIE deformed particles into smaller ellipsoidal shape with giving distance between the particles. So that evaporated Ag film is patterned.
Image by: Shinyoung Noh, School of Photovoltaic and Renewable Energy Engineering (SPREE)
Microscope/Technique: FEI NanoSEM 450
Supervisor: Dr. Xiaojing Hao
Yuan (Helena) Wang, School of Chemical Engineering
The 3D drape porous NiO materials with high specific surface area were fabricated by templating strategy. It is designed as an effective thermal conductive catalyst for CO2 reduction. Comparing to nano particles catalysts, 3D drape porous NiO exhibits extremely high thermal stability, catalytic activity and methane selectivity.
Image by: Yuan (Helena) Wang, School of Chemical Engineering
Microscope/Technique: FEI NanoSEM 230
Supervisors: Scientia Professor Rose Amal and Dr. Hamid Arandiyan
Sajjad S. Mofarah, School of Materials Science and Engineering
The image shows hexagonal cerium oxide tubes grown on FTO substrate by the method of anodic electrodeposition. The images taken at very early stages of growing reveal that cerium oxide starts growing in rod shape. However applying potential for a longer time makes them to hollow which finally turns into tube. The tubes with average height of 30 -40 micron is expected to show significant photocatalytic activity.
Image by: Sajjad S. Mofarah, School of Materials Science and Engineering
Microscope/Technique: FEI NanoSEM 450
Supervisor: Prof. C. Sorrell
Lucy Gloag, School of Chemistry
The low resolution TEM image shows a superlattice of interlocked Ru hourglass-shaped nanoparticles. The nanoparticles self-assemble on the TEM grid to form an alternating pattern of hexagon and hourglass shapes. The hexagonal base of the hourglass is seen when the nanoparticles are oriented ‘upwards’ and the hourglass shape is seen when the nanoparticles are oriented ’side-on’ to the electron beam.
Image by: Lucy Gloag, School of Chemistry
Microscope/Technique: Phillips cm200 TEM
Rob Russell, School of Biological and Biomolecular Sciences
Cellulose fibres are excreted from some bacterial cells and can form a “woven mat” of cellulose with high porosity.
A piece of cellulose pellicle was prepared for SEM using the critical point dryer at the EMU, many thanks to Sigrid Fraser for guidance.
The dried cellulose was imaged using the SEM 230 following platinum coating. The image shows a single Gluconacetobacter xylinus cell whose structure has been maintained by the drying process.
Image by: Rob Russell, School of Biological and Biomolecular Sciences
Instrument used: FEI NanoSEM 230
Derrick Lau, School of Medical Sciences
The HIV-1 capsid is a protein cage that protects the fragile genome. A mutant capsid protein has been shown to make uniform spheres (Pornillos et al. 2010). The plasmid were supplied to us to purify. Those proteins do indeed self-assembled into very nice spherical balls!
Methods: Negative staining with Uranyl acetate (2% w/v in water) on formvar coated carbon grids provided by the EMU.
Image by: Derrick Lau, PhD student, Single Molecule Science, School of Medical Sciences
Instrument used: FEI Tecnai G2 20 TEM
Simon Hager, Electron Microscope Unit
This x‐ray map shows the primary sulphide mineralisation in the ore body from the Sunny Corner silver mine which is located approximately 40km to the east of Bathurst. The colours of the individual minerals are;
Purple: pyrite (FeS2),
Green: quartz (SiO2),
Light Blue: galena (PbS),
Dark Blue: sphalerite (ZnS) and
Pink: freibergite (Ag6Cu4Fe2Sb4S13).
Image by: Dr. Simon Hager, Technical Officer, Electron Microscope Unit
Instrument used: FEI Quanta ESEM
Leeora Gubbay-Nemes, School of Biological Earth & Environmental Sciences
This unique animal print pattern is captured in a volcanic rock from Brothers Submarine Volcano (NZ) and is known as a "Ti-magnetite Symplectite".
This would have formed during eruption of the volcano at a depth of ~2.5km beneath the seafloor. As magma ascended during the eruption a decrease of pressure and loss water content would have caused the breakdown of hydrous amphibole to a more stable mineral phase of Ti-magnetite, forming this animal-like pattern.
Image by: Leeora Gubbay-Nemes, PhD Student, School of Biological Earth & Environmental Sciences, UNSW
Instrument used: EPMA JEOL-8500
Susanne Erdmann, School of Biotechnology and Biomolecular Sciences (BABS)
SE1 is a virus isolated from a hypersaline lake in Antarctica (Deep Lake). It does infect an haloarchaeal strain isolated from the same lake and I am currently getting the genome assembled.
Image by: Susanne Erdmann, School of Biotechnology and Biomolecular Sciences (BABS)
Microscope/Technique: J1400 TEM, negative staining
Hao Wu, School of Chemical Engineering
Figure 1 | SEM image of the nanostructures obtained during the growth of ZnO on FTO.
According to the SEM micrograph images the diameter of the ZnO nanorod can be estimated at about 60nm. The entire surface of the FTO glass has been thoroughly coated with ZnO nanorod. Addtionally, the width and overall size of the ZnO nanorod seems consistent and not much fluctuation in the dimensions furthermore crediting the success of the chemical bath deposition method to fabricate ZnO nanorod.
My name is Hao Wu (5001090). We are a leading (photo(electro))catalysis research laboratory headed by Professor Rose Amal within the School of Chemical Engineering at the University of New South Wales. The PARTCAT Laboratory evolved from the Centre for Particle and Catalyst Technologies and was part of the ARC Centre of Excellence for Functional Nanomaterials from 2003 until the end of 2013.
Finally, I would like to thank and express my gratitude for Yin Yao and the EMU centre for your guidance during the progress of SEM training.
Lydia Sandiford, School of Chemistry
This is an image of iron/iron oxide core shell nanocrystals for use as MRI contrast agents.
Image by: Lydia Sandiford, School of Chemistry
Microscope/Technique: FEI Tecnai G2 20 TEM
Ted Chang, School of Chemical Engineering
Polymeric Nanoparticle used for the delivery of cancer therapeutics to cancers cells.
Image by: Ted Chang, School of Chemical Engineering
Microscope/Technique: JEOL 1400, osmium tetroxide vapour staining
Raheleh Pardehkhorram, School of Chemistry
TEM image of gold nanorods which are employed for pathogen detection.
Image by: Raheleh Pardehkhorram, School of Chemistry
Microscope/Technique:FEI Tecnai G2 20 TEM
Amanda Wang, Materials Science and Engineering
Where the wild things are - TEM specimens of Ni-Cr plasma sprayed splats on alumina, exhibiting extensive porosity, delamination, and multiple layers of interfacial material.
Image by: Amanda Wang, Materials Science and Engineering
Microscope/Technique: Zeiss Auriga FIB SEM (TEM specimen preparation)