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    Analysis of Ce (Li) spectra
    (Australian Institute of Nuclear Science and Engineering, 1970-02-16) Bird, JR; Upex, C
    Not available see attached scanned image.
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    Applications of a PDP-7
    (Australian Institute of Nuclear Science and Engineering, 1970-02-16) Scott. MD; Bird, JR; Kenny. MJ; Allen, BJ
    Not available see attached scan.
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    A new Early Cretaceous lizard in Myanmar amber with exceptionally preserved integument
    (Springer Nature, 2022-12-01) Čerňanský, A; Stanley, EL; Daza, JD; Bolet, A; Arias, JS; Bauer, AM; Vidal-García, M; Bevitt, JJ; Peretti, AM; Aung, NN; Evans, SE
    We here report on a well-preserved juvenile lizard specimen in Albian amber (ca. 110 mya) from the Hkamti site (Myanmar). This new taxon is represented by an articulated skull and the anterior portion of the trunk, including the pectoral girdle and forelimbs. The scleral ossicles and eyelid are also visible, and the specimen exhibits pristine detail of the integument (of both head and body). In a combined molecular and morphological analysis, it was consistently recovered as a scincoid lizard (Scinciformata), as sister toTepexisaurus + Xantusiidae. However, the phylogenetic position of the new taxon should be interpreted with caution as the holotype is an immature individual. We explored the possibility of miscoding ontogenetically variable characters by running alternative analyses in which these characters were scored as missing data for our taxon. With the exception of one tree, in which it was sister to Amphisbaenia, the specimen was recovered as a Pan-xantusiid. Moreover, we cannot rule out the possibility that it represents a separate lineage of uncertain phylogenetic position, as it is the case for many Jurassic and Cretaceous taxa. Nonetheless, this fossil offers a rare opportunity to glimpse the external appearance of one group of lizards during the Early Cretaceous. © The Author(s) 2022 - Open Access CC BY 4.0
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    Comparing three techniques to determine the water vapour transmission rates of polymers and barrier films
    (Elsevier, 2017-12) Jarvis, KL; Evans, PJ; Cooling, NA; Vaughan, B; Habsuda, J; Belcher, WJ; Bilen, C; Griffiths, GJ; Dastoor, PC; Triani, G
    Barrier films are required for a number of applications such as food packaging or organic electronics to prevent product degradation results from exposure to water vapour and oxygen. In order to determine the effectiveness of polymers and deposited barrier films to inhibit water permeation, the water vapour transmission rate (WVTR) needs to be measured. The calcium test, MOCON instrument and tritiated water permeation can all be used to determine the WVTR, but the values produced by these techniques have not been extensively compared. The WVTR of two polymer substrates and two barrier films deposited onto polymer substrates have been measured using these three techniques. For a polyethylene terephthalate substrate and a MOCON reference film, similar WVTR were observed for all three techniques. For two commercially available barrier films, variable WVTRs were observed and attributed to film defects. WVTR measurements play an essential role in the use of polymers and barrier films to retard water permeation, therefore an understanding of the advantages and disadvantages of each technique is of great importance. © 2017 Elsevier B.V.
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    Regulating the coordination environment of mesopore‐confined single atoms from metalloprotein‐MOFs for highly efficient biocatalysis
    (Wiley, 2022-09-08) Liang, JY; Johannessen, B; Wu, ZB; Webster, RF; Yong, J; Zulkifli, MYB; Harbort, JS; Cheok, YR; Wen, HT; Ao, ZM; Kong, B; Chang, SLY; Scott, J; Liang, K
    Single‐atom catalysts (SACs) exhibit unparalleled atomic utilization and catalytic efficiency, yet it is challenging to modulate SACs with highly dispersed single‐atoms, mesopores, and well‐regulated coordination environment simultaneously and ultimately maximize their catalytic efficiency. Here, a generalized strategy to construct highly active ferric‐centered SACs (Fe‐SACs) is developed successfully via a biomineralization strategy that enables the homogeneous encapsulation of metalloproteins within metal–organic frameworks (MOFs) followed by pyrolysis. The results demonstrate that the constructed metalloprotein‐MOF‐templated Fe‐SACs achieve up to 23‐fold and 47‐fold higher activity compared to those using metal ions as the single‐atom source and those with large mesopores induced by Zn evaporation, respectively, as well as up to a 25‐fold and 1900‐fold higher catalytic efficiency compared to natural enzymes and natural‐enzyme‐immobilized MOFs. Furthermore, this strategy can be generalized to a variety of metal‐containing metalloproteins and enzymes. The enhanced catalytic activity of Fe‐SACs benefits from the highly dispersed atoms, mesopores, as well as the regulated coordination environment of single‐atom active sites induced by metalloproteins. Furthermore, the developed Fe‐SACs act as an excellent and effective therapeutic platform for suppressing tumor cell growth. This work advances the development of highly efficient SACs using metalloproteins‐MOFs as a template with diverse biotechnological applications. © 2022 The Authors. Advanced Materials published by Wiley-VCH GmbH. Open Access CC-BY-NC-ND.