94,452 research outputs found
Optical particle detection integrated in a dielectrophoretic lab-on-a-chip
No full textThe design and fabrication of a dielectrophoretic "lab-on-a-chip" device for bioparticle processing and counting is presented. The device consists of a multi-layer travelling wave dielectrophoretic electrode array for manipulating particles and/or fluids, micro channels for delivering samples, and optical fibres for counting particles and/or measuring their velocities. Single particles were detected optically using either light scattering or fluorescence emission. The technology described in this work is potentially applicable to a range of particulate diagnostic systems
Future:Content
No full textIndustry conference book document from event organised by It's Nice That. The event explored what the future holds for the creative industries. Speakers include: Russell Davies, Anna Gerber & Britt Iversen, Deyan Sudjic, Neville Brody, Sanky, et
San Su xian sheng wen cui: qi shi juan. v.1
No full text[蘇洵, 蘇軾, 蘇轍撰].綫裝, 4函.框19x14.1公分, 14行26字. 白口, 左右雙邊, 單白魚尾. 版心中鐫"三蘇文粹"及卷次, 下鐫葉次及刻工.鈐有"雲上樓", "愚齋圖書館藏", "武進盛氏所藏", "愚齋審定善本", "丙辰年查過"印.Xian zhuang, 4 han.Kuang 19 x 14.1 gong fen, 14 hang 26 zi. Bai kou, zuo you shuang bian, dan bai yu wei. Ban xin zhong juan "San Su wen cui" ji juan ci, xia juan ye ci ji ke gong.[Su Xun, Su Shi, Su Che zhuan].Qian you "Yun shang lou", "Yu zhai tu shu guan cang", "Wujin Cheng shi suo cang", "Yu zhai shen ding shan ben", "Bing chen nian cha guo" yin
progetti su cui riflettere
No full textvengono introdotti da un saggio di Duccio A. Staderini ("progettisu cui riflettere") e commentati dagli autori progetti eseguiti nel decennio '80-'90, nei quali il rigore metodologico e progettuale è il presupposto per una qualità architettonica in cui il luogo e la "costruzione" costituiscono il punto focale della ricerca
Native p-type transparent conductive CuI via intrinsic defects
No full textThe ability of CuI to be doped p-type via the introduction of native defects has been investigated using first-principles pseudopotential calculations based on density functional theory. The Cu vacancy has a lower formation energy than any of the other native defects, which include I vacancy (V(I)), Cu interstitial (Cu(i)), I interstitial (I(i)), Cu antisite (Cu(I)), and I antisite (I(Cu)). Combined with its shallow acceptor level, it offers sufficient hole concentrations in CuI. The natural band alignments as compared to zinc-blende ZnS, ZnSe, and ZnTe have also been calculated in order to further identify the p-type dopability of CuI. It is found that CuI has a relatively high valence band maximum and conduction band minimum, which also makes it easy to dope CuI p-type in terms of the doping limit rule. In addition, the small effective mass of the light hole-about 0.303m(0)-can provide high mobility and p-type conductivity in CuI. All of these results make CuI an ideal candidate for native p-type materials (C) 2011 American Institute of Physics. [doi:10.1063/1.3633220
Audio of What is the consumer? What is the reader? lecture
No full textAudio of What is the consumer? What is the reader? lecture delivered by Dr Cui Su and Paul Caplan as part of #WSAmacd and #WSAadm remix cours
Realizing the NPD Benefits of the Firm Innovation Strategy: The Role of Supply Management and Supply Chain Transformational Leadership
No full textFirm innovation strategy (FIS) is crucial for new product development (NPD) performance. Few studies have revealed how theFIS that recognizes the importance of supply chain (SC) resources can improve NPD performance through SC management. Thisstudy emphasizes the mediating role of supply management, including innovativeness in supply management and firm-supplierrelationship. We argue that supply chain transformational leadership (SCTL) moderates the relationship between FIS and supplymanagement. Using data from 232 Chinese manufacturing firms and applying structural equation modeling and regressionanalysis, we tested the hypotheses. The results show that innovativeness in supply management and firm-supplier relationshipmediate the relationship between the FIS and NPD performance. SCTL positively moderates the influence of FIS on supply man-agement. These findings contributes to NPD outcomes. This study offers theoretical and empirical insights into SC management
A proof of concept of a BioMEMS glucose biosensor using microfabricated SU-8 films
No full textThe present project investigated and proved the concept of developing a novel
BioMEMS glucose micro-biosensor using a simple one-step microfabrication process of
the widely used SU-8 polymer. More specifically, the study focused on the investigation
of the suitability of the SU-8 polymer as a matrix for enzyme immobilisation that is
carried out during the microfabrication process. A comparative study between
commercially available SU-8 and “customised” SU-8 solutions showed that the
optimum concentration of photo-initiator for stress reduction can be achieved easier
with “customised” SU-8 solutions. The most appropriate type of microstructure for the
SU-8 matrix and the corresponding required microfabrication process were defined and
encapsulation of the enzyme GOx in the SU-8 solution was accomplished. A detailed
experimental investigation of the immobilised enzyme’s activity inside the SU-8 matrix,
was carried out using amperometric detection of hydrogen peroxide in a 3-electrode setup.
SU-8 films were immersed in a buffer solution and the platinum working electrode
was brought in close contact with the film. Films without enzyme showed negligible
variation in current upon the addition of glucose, as opposed to films with encapsulated
enzyme which showed a very clear increase in current. Experiments using films of
increased thickness or enzyme concentration, showed a higher response, thus proving
that the enzyme remained active not only on the film’s surface, but inside the matrix as
well. In the fluorescence spectroscopy experiments, the utilisation of the tris (4,7-
diphenyl-1,10-phenanthroline) ruthenium(II) dichloride oxygen indicator, which was
also captured in the polymer matrix during the microfabrication process, was proven to
be very sensitive to glucose concentration changes during the glucose oxidation and
there was no photo-bleaching.
The experimental investigations proved that the proposed concept of using SU-8
matrices for the immobilisation of biomolecules, is a valid proposal for the construction
of a BioMEMS glucose biosensor. An important outcome was the successful
immobilisation of glucose oxidase in SU-8 microfabricated structures. The enzyme still
showed activity despite the “hostile” conditions during microfabrication The proof of
principle of enzyme immobilisation in SU-8 films opens up new possibilities for
combining BioMEMS with biosensors and organic electronics
Donatello (Donato di Niccolò di Betto Bardi), Ghirlanda d'alloro su cui posa il "David" bronzeo
No full textScheda sulla ghirlanda d'alloro su cui posa il David bronzeo di Donatello nel Museo Nazionale del Bargell
Youthhood
No full textTESTING-GROUND issue 03, Youthhood, examines worlds through youthful eyes, makes evident young ambitions, and questions how we can better empower young people to design cities, landscapes, and a planet that works for them. The issue includes contributions from: Carmel Keren, Jude Daniel Smith, Claire Edwards, Kazeem Kuteyi, Emmanuel Adarkwah, Reza Nik, Dan Cui, Kristofer Cullum-Fernandez, Fida Sassi, Simeon Shtebunaev, Daze Aghaji, Averill Dimabuyu, Sarri Elfaitouri, Rebecca McDonald-Balfour, and Ed Wall.
Rebecca McDonald-Balfour (Author), Jude Daniel Smith (Author), Daze Aghaji (Author), Carmel Keran (Author), Alexis Liu (Author), Dan Cui (Author), Kristofer Cullum-Fernandez (Author), Fida Sassi (Author), Averill Dimabuyu (Author), Ed
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