Tag Archives: AI

Dr Stephen Warren-Smith to become CNBP AI

Stephen Warren-Smith27 June 2016:

Dr Stephen Warren-Smith, currently working at the Leibniz Institute of Photonic Technology (IPHT), Jena, Germany will return to the University of Adelaide in October this year, to take-up a four-year 2016 Ramsay Fellowship.

In exciting news for the Centre, and in conjunction with this Fellowship commencement, Stephen will also be granted official CNBP Associate Investigator status.

A University of Adelaide graduate, Stephen will be looking to develop very fine optical fibres with a range of potential industrial and diagnostic imaging applications, including bronchoscopy, where very thin endoscopes are required to reach the periphery of the lung.

We look forward to working closely with Stephen in this exciting area of research!

For further information on this story, please visit the University of Adelaide news site.

 

Publication: Polymer based whispering gallery mode laser for biosensing applications

January Alexandre Francois Low Res Edit 00832015: Publication

Polymer based whispering gallery mode laser for biosensing applications

Alexandre François, Nicolas Riesen, Hong Ji, Shahraam Afshar and Tanya M. Monro

Appl. Phys. Lett. 106, 031104 (2015); http://dx.doi.org/10.1063/1.4905931

For the full article click here

Nanoparticle chemistry meets diamond physics

fluroesence - from Jim piper213 January 2015: Working with CNBP AIs

Today, CNBP researchers from the RMIT node met Associate Investigator Prof Paul Mulvaney in Melbourne to discuss strategies to use fluorescent nanoparticles in biomedical imaging and sensing applications. In particular, the challenges associated with incorporating nanoscale materials into biomedical devices and carrying out highly reproducible and sensitive measurements in complex biological environments were addressed.

Nanoparticles, velcro, marbles and a hot glue gun

CNBPat Questacon SciComm event Dec 2014-2

16 December 2014 :Science Communication workshop.
“If you can’t explain it simply, you don’t understand it well enough.” – Albert Einstein.

On December 15-16th, 9 CNBP ECRs from University of Adelaide,  RMIT University, Macquarie University and SAHMRI attended a science communication workshop at the Questacon workshop (Canberra) and were taught the importance of translating their research into lay terms. More specifically, explaining concepts such as the use of nanoparticles for targeted drug therapy to an 8 year old. Its harder than you think and involves the art of scaffolding; i.e. simplifying a concept by using analogies.

The most interactive and fun session of the workshop involved us creating models and physical demonstrations of our research and included us all running around the Questacon workshop to explain current, throwing paper at people as a demonstration of drug delivery, different coloured glow sticks as an analogy for the use of nanoparticles/probes to diagnose pain and the use of lots and lots of velcro and hot glue guns to make “up-scaled” nanoparticles. Think Playschool for scientists.

CNBP were proud to be sponsors of this professional development workshop which was developed by The ARC Centre of Excellence for Electromaterials Science, in partnership with the ARC Centre of Excellence in Convergent Bio-Nano Science and Technology and the ARC Centre of Excellence in Nanoscale BioPhotonics.

The workshop was designed to teach participants how to put their best foot forward in media interviews, community talks and scientific presentations.

Large scale production of biocompatible nano-alumina

407 December 2014: Manuscript  accepted in Langmuir

Large-scale production and characterisation of biocompatible colloidal nano-alumina

Wan Aizuddin bin W Razali , Varun K. A. Sreenivasan , Ewa M. Goldys , and Andrei V Zvyagin

Abstract: Rapid uptake of nanomaterials in Life Sciences calls for the development of universal, high-yield techniques for their production and interfacing with biomolecules. Top-down methods take advantage of the existing variety of bulk and thin film solid-state materials for improved prediction and control of the resultant nanomaterial properties. We demonstrate the power of this approach using high-energy ball milling (HEBM) of alumina (Al2O3). Nano-alumina particles of the mean size 25 nm in its most stable α-crystallographic phase were produced in gram quantities, suitable for biological and biomedical applications. Nanomaterial contamination from zirconia balls used in HEBM was reduced from 19% to 2% using a selective acid etching procedure. The biocompatibility of the milled nanomaterial was demonstrated by forming stable colloids in water and physiological buffers, corroborated by zeta potentials of +40 mV and -40 mV, and characterized by in vitro cytotoxicity assays. Finally, the feasibility of milled nano-alumina surface to anchor a host of functional groups and biomolecules was demonstrated by functionalisation of their surface using a facile silane chemistry, resulting in decoration of the nanoparticle surface with amino groups suitable for further conjugation of biomolecules.

The full article is available from the Lanmuir website

Dr Alexandre Francois presents at Optical Society of America

Alexandre Francois Low Res Edit 0083July 2014: Invited Talk

CNBP Associate Investigator Dr Alexandre Francois from the The University of Adelaide presented a poster  titled “Polyelectrolyte Multilayers for Surface Functionalization: Advantages and Challenges,” in Advanced Photonics.”  Coauthors were:  Dr Herbert Tze Cheung Foo and Prof Tanya Monro,

Full details of the publication can be downloaded here:

Nanophotonics for undergraduates at Macquarie

Prof Ewa Goldys29 July 2014: Formal lectures in  nanobiophotonics  will commence this coming Monday at Macquarie University.

This formal unit of study (PHYS 704) covers current research directions at the interface of nanotechnology and biophotonics, addressing a common gap in the physics/engineering undergraduate curriculum. Students will learn about the principal types of nanomaterials and nanostructures with the underpinning physics and chemistry.  They will gain familiarity with photonics techniques that relate to biological applications such as advanced microscopy and image analysis. There is emphasis on applications and significance of nanomaterials in the life sciences. The lectures will  cover various Nanosafety, instrumentation and core measurement techniques which are applicable in nanotechnology and biophotonics will also be discussed.

The unit forms part of Macquarie Masters of Research degree program. It is taught by Professor Ewa Goldys (CNBP CI) and A/Prof Andrei Zvyagin (CNBP AI)  from Macquarie. The unit has been offered in 2013 and it received enthusiastic exit reports from its graduates.

Novel polymer functionalization method for exposed-core optical fiber

Roman Kosctecki Low Res Edit 0145

3 July 2014: Publication in Optical Society of America

Novel polymer functionalization method for exposed-core optical fiber

Authors: by Roman Kostecki,  Heike Ebendorff-Heidepriem, Shahraam Afshar,  GrantMcAdam, Claire Davis, and Tanya M. Monro

Abstract: We report on a one step functionalization process for optical
fiber sensing applications in which a thin film (∼50 nm) polymer doped
with sensor molecules is applied to a silica exposed-core fiber. The method
removes the need for surface attachment of functional groups, while
integrating the polymer, silica and sensor molecule elements to create a
distributed sensor capable of detecting an analyte of interest anywhere
along the fiber’s length. We also show that the thin film coating serves a
protective function, reducing deterioration in the transmission properties of
the silica exposed-core fiber, but increasing loss.