ORCID Profile
0000-0003-1004-5168
Current Organisation
University of South Australia
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Publisher: American Chemical Society (ACS)
Date: 08-08-2001
DOI: 10.1021/AC010118D
Abstract: The preparation of biocolloids with organized enzyme-containing multilayer shells for exploitation as colloidal enzymatic nanoreactors is described. Urease multilayers were assembled onto submicrometer-sized polystyrene spheres by the sequential adsorption of urease and polyelectrolyte, in a predetermined order, utilizing electrostatic interactions for layer growth. The catalytic activity of the biocolloids increased proportionally with the number of urease layers deposited on the particles, demonstrating that biocolloid particles with tailored enzymatic activities can be produced. It was further found that precoating the latex spheres with nanoparticles (40-nm silica or 12-nm magnetite) enhanced both the stability (with respect to adsorption) and enzymatic activity of the urease multilayers. The presence of the magnetite nanoparticle coating also provided a magnetic function that allowed the biocolloids to be easily and rapidly separated with a permanent magnet. The fabrication of such colloids opens new avenues for the application of bioparticles and represents a promising route for the creation of complex catalytic particles.
Publisher: Elsevier BV
Date: 04-2022
Publisher: American Association for the Advancement of Science (AAAS)
Date: 06-11-1998
DOI: 10.1126/SCIENCE.282.5391.1111
Abstract: Hollow silica and silica-polymer spheres with diameters between 720 and 1000 nanometers were fabricated by consecutively assembling silica nanoparticles and polymer onto colloids and subsequently removing the templated colloid either by calcination or decomposition upon exposure to solvents. Scanning and transmission electron microscopy images demonstrate that the wall thickness of the hollow spheres can be readily controlled by varying the number of nanoparticle-polymer deposition cycles, and the size and shape are determined by the morphology of the templating colloid. The hollow spheres produced are envisioned to have applications in areas ranging from medicine to pharmaceutics to materials science.
Publisher: Wiley
Date: 07-2000
DOI: 10.1002/1521-3927(20000701)21:11<750::AID-MARC750>3.0.CO;2-3
Publisher: Wiley
Date: 2001
DOI: 10.1002/1521-4095(200101)13:1<11::AID-ADMA11>3.0.CO;2-N
Publisher: Wiley
Date: 03-2000
DOI: 10.1002/(SICI)1521-4095(200003)12:5<333::AID-ADMA333>3.0.CO;2-X
Publisher: American Chemical Society (ACS)
Date: 19-09-2016
Publisher: American Chemical Society (ACS)
Date: 29-01-2000
DOI: 10.1021/LA991161N
Publisher: Elsevier BV
Date: 06-2018
Publisher: Elsevier BV
Date: 12-2023
Publisher: AIP Publishing
Date: 15-01-1998
DOI: 10.1063/1.366792
Abstract: In this work a highly sensitive optical technique was used to study the adsorption of thin organic layers onto a gold film from water, in situ and in real-time. Optical excitation of a surface-plasmon resonance (SPR) was used to probe the gold/water interface. The use of an acousto-optic tunable filter then provides a differential technique for monitoring the SPR position in optical wavelength. This allows optical changes at the metal/liquid interface to be measured as the adsorption of thin organic layers occurs. Adsorption of a poly(ethylene glycol) monododecyl ether surfactant (C12E8) and a 30-mer DNA oligonucleotide with a mercaptohexyl group at the 5′-phosphate end (DNA-SH) onto gold from water were examined. Conventional, angle-dependent reflectivity measurements taken on the same system provided complementary SPR data, allowing the sensitivity of the two techniques to be compared.
Publisher: American Chemical Society (ACS)
Date: 10-1998
DOI: 10.1021/MA980538D
Publisher: Elsevier BV
Date: 2017
Publisher: Elsevier BV
Date: 2019
Publisher: American Chemical Society (ACS)
Date: 16-01-2001
DOI: 10.1021/CM001175A
Publisher: Wiley
Date: 12-2000
DOI: 10.1002/1521-4095(200012)12:24<1947::AID-ADMA1947>3.0.CO;2-8
Publisher: Elsevier BV
Date: 2021
Publisher: American Chemical Society (ACS)
Date: 27-06-2001
DOI: 10.1021/JP0111665
Publisher: Elsevier BV
Date: 08-2021
Publisher: MDPI
Date: 25-03-2020
Publisher: Elsevier BV
Date: 1999
Publisher: American Chemical Society (ACS)
Date: 31-05-2000
DOI: 10.1021/JA994029I
Publisher: Wiley
Date: 04-02-2000
DOI: 10.1002/(SICI)1521-3765(20000204)6:3<413::AID-CHEM413>3.0.CO;2-9
Abstract: Hollow capsules of nanometer to micrometer dimensions constitute an important class of materials that are employed in erse technological applications, ranging from the delivery of encapsulated products for cosmetic and medicinal purposes to their use as light-weight composite materials and as fillers with low dielectric constant in electronic components. Hollow capsules comprising polymer, glass, metal, and ceramic are nowadays routinely produced by using various chemical and physicochemical methods. The current article focuses on a recent novel and versatile technique, based on a combination of colloidal templating and self-assembly processes, developed for synthesizing uniform hollow capsules of a broad range of materials. The strategy outlined readily affords control over the size, shape, composition, and wall thickness of the hollow capsules.
Publisher: Elsevier BV
Date: 10-2023
Publisher: American Chemical Society (ACS)
Date: 27-10-2001
DOI: 10.1021/NL015622C
Publisher: American Chemical Society (ACS)
Date: 08-1998
DOI: 10.1021/JA9815024
Publisher: Wiley
Date: 03-2001
DOI: 10.1002/1521-4095(200103)13:5<350::AID-ADMA350>3.0.CO;2-X
Publisher: Elsevier BV
Date: 08-2022
Publisher: Elsevier BV
Date: 09-2017
Publisher: Elsevier BV
Date: 03-1998
Publisher: Elsevier BV
Date: 02-2023
Publisher: American Chemical Society (ACS)
Date: 27-07-2001
DOI: 10.1021/JA015807L
Publisher: Elsevier BV
Date: 2021
Publisher: Wiley
Date: 04-2001
DOI: 10.1002/1616-3028(200104)11:2<122::AID-ADFM122>3.0.CO;2-N
Publisher: Elsevier BV
Date: 09-2017
Publisher: Informa UK Limited
Date: 06-01-2015
Publisher: American Chemical Society (ACS)
Date: 21-11-2002
DOI: 10.1021/MA0209388
Publisher: Elsevier BV
Date: 02-2001
Publisher: American Institute of Aeronautics and Astronautics (AIAA)
Date: 10-2016
DOI: 10.2514/1.J054958
Publisher: Elsevier BV
Date: 11-2022
Publisher: MDPI AG
Date: 27-02-2020
DOI: 10.3390/APP10051586
Abstract: The role that combustion plays in energy systems remains crucial in supplying the world’s ever-increasing power demands [...]
Publisher: American Institute of Aeronautics and Astronautics
Date: 18-06-2015
DOI: 10.2514/6.2015-3210
Publisher: CSIRO Publishing
Date: 2001
DOI: 10.1071/CH01109
Publisher: Wiley
Date: 17-08-2001
DOI: 10.1002/1521-3773(20010817)40:16<3001::AID-ANIE3001>3.0.CO;2-5
Publisher: American Chemical Society (ACS)
Date: 09-12-2001
DOI: 10.1021/CM001164H
Publisher: American Chemical Society (ACS)
Date: 15-07-1998
DOI: 10.1021/LA971288H
Publisher: Elsevier BV
Date: 09-2023
Publisher: Elsevier BV
Date: 12-2022
Publisher: Elsevier BV
Date: 08-2022
Publisher: Springer Science and Business Media LLC
Date: 1999
Publisher: Elsevier BV
Date: 04-2019
Publisher: American Chemical Society (ACS)
Date: 24-02-1998
DOI: 10.1021/JP980198Y
Publisher: American Chemical Society (ACS)
Date: 12-01-2001
DOI: 10.1021/CM001184J
Publisher: American Chemical Society (ACS)
Date: 17-08-2000
DOI: 10.1021/LA000401S
Publisher: Wiley
Date: 07-2001
DOI: 10.1002/1521-4095(200107)13:14<1090::AID-ADMA1090>3.0.CO;2-H
Publisher: Royal Society of Chemistry (RSC)
Date: 1999
DOI: 10.1039/A905115E
Publisher: Elsevier BV
Date: 2019
Publisher: Elsevier BV
Date: 09-2021
Publisher: American Chemical Society (ACS)
Date: 20-12-2023
Publisher: Royal Society of Chemistry (RSC)
Date: 2001
DOI: 10.1039/B009897N
Publisher: American Chemical Society (ACS)
Date: 06-1999
DOI: 10.1021/JA990441M
Publisher: Elsevier BV
Date: 06-2023
Publisher: American Chemical Society (ACS)
Date: 27-10-1999
DOI: 10.1021/CM9911058
Publisher: American Chemical Society (ACS)
Date: 24-02-2001
DOI: 10.1021/LA001550D
Publisher: Springer Science and Business Media LLC
Date: 17-12-2023
Publisher: Elsevier BV
Date: 2021
Publisher: Elsevier BV
Date: 2021
Publisher: American Chemical Society (ACS)
Date: 23-09-2000
DOI: 10.1021/CM000438Y
Publisher: American Chemical Society (ACS)
Date: 16-09-1999
DOI: 10.1021/LA990426V
Publisher: American Chemical Society (ACS)
Date: 25-05-2001
DOI: 10.1021/LA0102612
Publisher: American Chemical Society (ACS)
Date: 31-10-2000
DOI: 10.1021/LA000942H
Publisher: Elsevier BV
Date: 09-2000
Publisher: American Chemical Society (ACS)
Date: 11-2001
DOI: 10.1021/LA011006K
Publisher: Frontiers Media SA
Date: 29-11-2019
Publisher: American Chemical Society (ACS)
Date: 13-10-1999
DOI: 10.1021/CM991083P
Publisher: American Chemical Society (ACS)
Date: 12-09-2001
DOI: 10.1021/CM011128Y
Publisher: Elsevier BV
Date: 31-03-2000
Publisher: Elsevier BV
Date: 04-2017
Publisher: Wiley
Date: 08-1999
DOI: 10.1002/(SICI)1521-4095(199908)11:11<950::AID-ADMA950>3.0.CO;2-T
Publisher: IntechOpen
Date: 14-01-2019
Abstract: Rotating detonation engines are a novel device for generating thrust from combustion, in a highly efficient, yet mechanically simple form. This chapter presents a detailed literature review of rotating detonation engines. Particular focus is placed on the theoretical aspects and the fundamental operating principles of these engines. The review covers both experimental and computational studies, in order to identify gaps in current understanding. This will allow the identification of future work that is required to further develop rotating detonation engines.
Publisher: American Chemical Society (ACS)
Date: 09-03-1999
DOI: 10.1021/MA980674I
Publisher: American Chemical Society (ACS)
Date: 26-07-2001
DOI: 10.1021/BM010052W
Abstract: Decomposable hollow capsules based on deoxyribonucleic acid (DNA) and a low molecular weight organic molecule, a naturally occurring polyamine, spermidine (SP), were formed by applying the layer-by-layer adsorption strategy to colloid particles, viz., assembling DNA/SP multilayers on colloids and subsequently removing the templated core. For comparison, hollow capsules from the higher molecular weight biopolymers, alginate (ALG) and poly(lysine) (PL), were also prepared. The multilayers were first formed on polystyrene spheres, and their growth was followed by microelectrophoresis. The preparation of hollow capsules, derived from multilayer coating melamine formaldehyde core particles and then decomposing the core by acid treatment, was verified by atomic force microscopy and transmission electron microscopy. In contrast to the hollow ALG/PL capsules, the hollow DNA/SP capsules displayed a high sensitivity to salt solutions: Decomposition of the DNA/SP multilayers occurred after exposure to sodium chloride solutions. The hollow capsules prepared are attractive for the encapsulation and release of various substances for ex le, the release of encapsulated compounds, such as dyes or drugs, can occur when loaded DNA/SP capsules are exposed to environmental (salt) conditions that decompose them, e.g., in the bloodstream.
Publisher: CRC Press
Date: 13-04-2022
Publisher: Elsevier BV
Date: 2022
Publisher: Elsevier BV
Date: 09-2021
Publisher: Elsevier BV
Date: 09-2016
Publisher: Open Book Publishers
Date: 08-2019
DOI: 10.11647/OBP.0169.01
Publisher: Elsevier BV
Date: 06-2019
Publisher: Wiley
Date: 05-2001
DOI: 10.1002/1521-4095(200105)13:10<740::AID-ADMA740>3.0.CO;2-6
Publisher: Wiley
Date: 10-1999
No related grants have been discovered for Michael Evans.