A5057756817- Gold and Silver Nanoparticles Synthesis and Applications
- Advanced biosensing and bioanalysis techniques
- Plasmonic and Surface Plasmon Research
- Nanofabrication and Lithography Techniques
- Nanocluster Synthesis and Applications
- Nanoparticle-Based Drug Delivery
- Nanoporous metals and alloys
- Molecular Junctions and Nanostructures
- Pickering emulsions and particle stabilization
- Nanomaterials and Printing Technologies
- Electrowetting and Microfluidic Technologies
- Nanoparticles: synthesis and applications
- Nanomaterials for catalytic reactions
- Pharmaceutical Practices and Patient Outcomes
- Biosensors and Analytical Detection
- Health Systems, Economic Evaluations, Quality of Life
- Micro and Nano Robotics
- Proteins in Food Systems
- Quantum Dots Synthesis And Properties
- Pharmaceutical Economics and Policy
- Surfactants and Colloidal Systems
Monash University
2011-2020
Melbourne Centre for Nanofabrication
2012-2019
Leibniz-Institute for New Materials
2018-2019
Australian Regenerative Medicine Institute
2014
Under the right process conditions, nanoparticles can cluster together to form defined, dispersed structures, which be termed supraparticles. Controlling size, shape, and morphology of such entities is a central step in various fields science technology, ranging from colloid chemistry soft matter physics powder technology pharmaceutical food sciences. These diverse scientific communities have been investigating formation processes structure/property relations supraparticles under completely...
Abstract The excitation of surface plasmons in metallic nanostructures provides an opportunity to localize light at the nanoscale, well below scale wavelength light. high local electromagnetic field intensities generated vicinity through this nanofocusing effect are exploited enhanced Raman spectroscopy (SERS). At narrow interparticle gaps, so‐called hot‐spots, is particularly pronounced. Hence, engineering substrates with a consistently density hot‐spots major challenge SERS. Here, simple...
Nanorods standing at attention! A self-assembly technique based on convective and capillary forces was used for the direct fabrication of arrays gold nanorods lithographically predefined areas (see picture). The hexagonal close-packed structure creates an ideal substrate surface-enhanced Raman spectroscopy. Detailed facts importance to specialist readers are published as "Supporting Information". Such documents peer-reviewed, but not copy-edited or typeset. They made available submitted by...
The conjugation of gold nanorods (AuNRs) with polyethylene glycol (PEG) is one the most effective ways to reduce their cytotoxicity arising from cetyltrimethylammonium bromide (CTAB) and silver ions used in synthesis. However, typical PEGylation occurs only at tips AuNRs, producing partially modified AuNRs. To address this issue, we have developed a novel, facile, one-step surface functionalization method that involves use Tween 20 stabilize bis(p-sulfonatophenyl)phenylphosphine (BSPP)...
A simple, versatile, high-throughput nanofabrication method based on electrostatic self-assembly is developed for the large-scale generation of well-defined asymmetric plasmonic dimers, enabling study interparticle plasmon coupling and "hot-spot" phenomenon in SERS.
Abstract Surface-enhanced Raman spectroscopy (SERS) has attracted increasing interest for chemical and biochemical sensing. Several studies have shown that SERS intensities are significantly increased when an optical interference substrate composed of a dielectric spacer reflector is used as supporting substrate. However, the origin this additional enhancement not been systematically studied. In paper, high sensitivity substrates self-assembled core-satellite nanostructures silica-coated...
Hot off the press: A Gutenberg-style nanoprinting technique that exploits electrostatic nanoparticle assembly and DNA-mediated replication of lithographically defined nanostructures was developed (see picture). Dense loading high transfer yields were observed over three consecutive printing cycles, proving potential to fabricate nanoparticle-based devices at low cost.
PNA does it better: Peptide nucleic acid (PNA) oligomers were attached to gold nanoparticles (AuNPs) through a variety of mono- and trithiol linkers. These functionalized particles had sufficient stability for sequence-specific self-assembly onto surfaces (see figure) in the absence ions or surfactants. The nanoparticle surface densities obtained superior comparable DNA-modified AuNPs.
An efficient and facile size- shape-selective separation of gold nanorod (GNR) solutions is developed using a fractionated precipitation strategy.
The controlled positioning of spherical gold nanoparticles and nanorods upon self-assembly on a substrate is great interest for the fabrication tailored plasmonic devices. Here, an electrostatic approach with sequential two-step assembly protocol presented as cost-effective high-yield alternative to previously presented, more complex proof concepts. Three different geometries can be separately produced in large quantities relying attraction repulsion charge-carrying building blocks: single...
Dicht gepackte Nanostäbe: Ein Selbstorganisationsprozess auf der Basis von Konvektions- und Kapillarkräften wurde genutzt, um lithographisch vorgegebene Bereiche mit Anordnungen aufrecht stehender Goldnanostäbe zu versehen (siehe Bild). Die hexagonal dichteste Packung erzeugt ein ideales Substrat für die oberflächenverstärkte Raman-Spektroskopie.
Druckfrisch: In Anlehnung an das Druckprinzip von Gutenberg wurde eine Technik entwickelt, die elektrostatisches Ordnen Nanopartikeln und Kopieren lithographisch definierten Nanostrukturen durch DNA-Moleküle nutzt (siehe Bild). Eine dichte Beladung mit sowie hohe Übertragungsrate für drei nacheinander folgende Druckzyklen wurden beobachtet beweisen, dass kostengünstige Druckelemente auf Basis hergestellt werden können. Detailed facts of importance to specialist readers are published as...
PNA kann's besser: Peptidnukleinsäure(PNA)-Oligomere wurden über verschiedene Monothiol- und Trithiol-Linker an Gold-Nanopartikel (AuNPs) geknüpft. Die funktionalisierten Partikel waren stabil genug für die sequenzspezifische Selbstorganisation auf Goldoberflächen (siehe Bild) in Abwesenheit von Ionen Tensiden. Oberflächendichte der Nanopartikel übertrifft vergleichbaren DNA-modifizierten AuNPs. As a service to our authors and readers, this journal provides supporting information supplied by...
Background: Family medicine is a broad specialty, requiring diverse and appropriate training program. At Can Tho UMP, the curriculum has been regularly reviewed updated. Objectives: To determine satisfaction rate of students with programs analyze some related factors. Materials methods: A cross-sectional description on sample selected from 2 courses (starting in 2021 2022), modifications list subjects increased time practice, particularly at outpatient settings latter curriculum. The...
Die Selbstorganisation von präzise platzierten, großflächigen Anordnungen aufrecht stehender Goldnanostäbe wird U. Bach et al. in ihrer Zuschrift auf S. 8862 ff. durch einen Nanofabrikationsprozess der Basis Konvektions- und Kapillarkräften erreicht. Funktionalisierung Nanostäbe kann genutzt werden, um die Wechselwirkungsenergien zwischen den Partikeln untereinander sowie Partikel Substrat so einzustellen, dass eine hexagonal dichteste Packung resultiert.