SPIE Micro + Nano Materials, Devices, and Applications最新文献_第6页

Design and simulation of piezoelectric PZT micro-actuators with integrated piezoresistive displacement sensors for micro-optics applications 集成压阻式位移传感器的压电压电微致动器的设计与仿真

SPIE Micro + Nano Materials, Devices, and Applications Pub Date : 2015-12-22 DOI: 10.1117/12.2202502

Ssu-Han Chen, A. Michael, C. Kwok, Peng Wang

引用次数: 0

Dynamic evaluation and control of blood clotting using a microfluidic platform for high-throughput diagnostics 利用微流控平台进行高通量诊断的血液凝固动态评估和控制

SPIE Micro + Nano Materials, Devices, and Applications Pub Date : 2015-12-22 DOI: 10.1117/12.2202367

M. Combariza, Xinghuo Yu, W. Nesbitt, F. Tovar-Lopez, D. Rabus, A. Mitchell

引用次数: 0

Printed circuit boards as platform for disposable lab-on-a-chip applications 印刷电路板作为一次性芯片实验室应用的平台

SPIE Micro + Nano Materials, Devices, and Applications Pub Date : 2015-12-22 DOI: 10.1117/12.2202413

C. Leiterer, Matthias Urban, W. Fritzsche, E. Goldys, D. Inglis

引用次数: 4

Designing small molecule polyaromatic p- and n-type semiconductor materials for organic electronics 有机电子学用小分子多芳族p型和n型半导体材料的设计

SPIE Micro + Nano Materials, Devices, and Applications Pub Date : 2015-12-22 DOI: 10.1117/12.2202565

G. Collis

{"title":"Designing small molecule polyaromatic p- and n-type semiconductor materials for organic electronics","authors":"G. Collis","doi":"10.1117/12.2202565","DOIUrl":"https://doi.org/10.1117/12.2202565","url":null,"abstract":"By combining computational aided design with synthetic chemistry, we are able to identify core 2D polyaromatic small molecule templates with the necessary optoelectronic properties for p- and n-type materials. By judicious selection of the functional groups, we can tune the physical properties of the material making them amenable to solution and vacuum deposition. In addition to solubility, we observe that the functional group can influence the thin film molecular packing. By developing structure-property relationships (SPRs) for these families of compounds we observe that some compounds are better suited for use in organic solar cells, while others, varying only slightly in structure, are favoured in organic field effect transistor devices. We also find that the processing conditions can have a dramatic impact on molecular packing (i.e. 1D vs 2D polymorphism) and charge mobility; this has implications for material and device long term stability. We have developed small molecule p- and n-type materials for organic solar cells with efficiencies exceeding 2%. Subtle variations in the functional groups of these materials produces p- and ntype materials with mobilities higher than 0.3 cm2/Vs. We are also interested in using our SPR approach to develop materials for sensor and bioelectronic applications.","PeriodicalId":320411,"journal":{"name":"SPIE Micro + Nano Materials, Devices, and Applications","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115120366","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Hollow silicon microneedle array based trans-epidermal antiemetic patch for efficient management of chemotherapy induced nausea and vomiting 基于空心硅微针阵列的经表皮止吐贴片对化疗引起的恶心呕吐的有效治疗

SPIE Micro + Nano Materials, Devices, and Applications Pub Date : 2015-12-22 DOI: 10.1117/12.2207407

Bhushan N. Kharbikar, H. Kumar S., Sindhu Kr, R. Srivastava

{"title":"Hollow silicon microneedle array based trans-epidermal antiemetic patch for efficient management of chemotherapy induced nausea and vomiting","authors":"Bhushan N. Kharbikar, H. Kumar S., Sindhu Kr, R. Srivastava","doi":"10.1117/12.2207407","DOIUrl":"https://doi.org/10.1117/12.2207407","url":null,"abstract":"Chemotherapy Induced Nausea and Vomiting (CINV) is a serious health concern in the treatment of cancer patients. Conventional routes for administering anti-emetics (i.e. oral and parenteral) have several drawbacks such as painful injections, poor patient compliance, dependence on skilled personnel, non-affordability to majority of population (parenteral), lack of programmability and suboptimal bioavailability (oral). Hence, we have developed a trans-epidermal antiemetic drug delivery patch using out-of-plane hollow silicon microneedle array. Microneedles are pointed micron-scale structures that pierce the epidermal layer of skin to reach dermal blood vessels and can directly release the drug in their vicinity. They are painless by virtue of avoiding significant contact with dermal sensory nerve endings. This alternate approach gives same pharmacodynamic effects as par- enteral route at a sparse drug-dose requirement, hence negligible side-effects and improved patient compliance. Microneedle design attributes were derived by systematic study of human skin anatomy, natural micron-size structures like wasp-sting and cactus-spine and multi-physics simulations. We used deep reactive ion etching with Bosch process and optimized recipe of gases to fabricate high-aspect-ratio hollow silicon microneedle array. Finally, microneedle array and polydimethylsiloxane drug reservoir were assembled to make finished anti-emetic patch. We assessed microneedles mechanical stability, physico-chemical properties and performed in-vitro, ex- vivo and in-vivo studies. These studies established functional efficacy of the device in trans-epidermal delivery of anti-emetics, its programmability, ease of use and biosafety. Thus, out-of-plane hollow silicon microneedle array trans-epidermal antiemetic patch is a promising strategy for painless and effective management of CINV at low cost in mainstream healthcare.","PeriodicalId":320411,"journal":{"name":"SPIE Micro + Nano Materials, Devices, and Applications","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122031127","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Modeling of graphene nanoscroll conductance with quantum capacitance effect 基于量子电容效应的石墨烯纳米卷电导建模

SPIE Micro + Nano Materials, Devices, and Applications Pub Date : 2015-12-22 DOI: 10.1117/12.2202579

M. Khaledian, Razali Ismail

引用次数: 1

Spectroscopic behavior in whispering-gallery modes by edge formation of printed microdisk lasers 印刷微磁盘激光器边缘形成的耳语廊模式光谱行为

SPIE Micro + Nano Materials, Devices, and Applications Pub Date : 2015-12-22 DOI: 10.1117/12.2202423

Cong Chen, Jifeng Li, Soichiro Ryu, H. Yoshioka, M. Ozawa, Y. Oki

引用次数: 0

Effect of BMITFSI to the electrical properties of methycelloluse/chitosan/NH4TF-based polymer electrolyte BMITFSI对甲基纤维素/壳聚糖/ nh4tf基聚合物电解质电学性能的影响

SPIE Micro + Nano Materials, Devices, and Applications Pub Date : 2015-12-22 DOI: 10.1117/12.2198000

N. Arifin, A. Khiar

引用次数: 2

Thermoset polyester-based superhydrophobic microchannels for nanofluid heat transfer applications 用于纳米流体传热应用的热固性聚酯基超疏水微通道

SPIE Micro + Nano Materials, Devices, and Applications Pub Date : 2015-12-22 DOI: 10.1117/12.2202524

Chia-Yang Chung, M. Warkiani, Sara Mesgari, G. Rosengarten, R. Taylor

{"title":"Thermoset polyester-based superhydrophobic microchannels for nanofluid heat transfer applications","authors":"Chia-Yang Chung, M. Warkiani, Sara Mesgari, G. Rosengarten, R. Taylor","doi":"10.1117/12.2202524","DOIUrl":"https://doi.org/10.1117/12.2202524","url":null,"abstract":"Both microchannels and nanofluids have shown promise to enhance convective heat transfer. However, the major drawback of these two technologies is their significant increase of pumping pressure due to increased frictional drag (for high surface area microchannels) or increased viscoelastic frictional drag (for nanofluids). It is possible to decrease frictional drag, and overcome this drawback, by implementing superhydrophobic surfaces to create slip with the channel wall. In this work, surface microstructures fabricated from the thermoset polyester (TPE) were used to create superhydrophobic surfaces which are capable of reducing the frictional drag in channel flow and thus, reduce the pumping pressure. Preliminary experimental results of superhydrophobic microchannels with rib-and-cavity microstructures aligned transversely and longitudinally to the flow direction were studied with both distilled water and water-based multi-walled carbon nanotube (MWCNT) nanofluid as the working fluids. While pressure drop reduction of superhydrophobic surfaces and heat transfer enhancement of nanofluids were shown, it was observed that heat transfer degradation occurred at higher flow rates with MWCNT nanofluid as the working fluid due to the precipitation of nanoparticles.","PeriodicalId":320411,"journal":{"name":"SPIE Micro + Nano Materials, Devices, and Applications","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125390088","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Optimisation of Schottky electrode geometry 肖特基电极几何结构的优化

SPIE Micro + Nano Materials, Devices, and Applications Pub Date : 2015-12-22 DOI: 10.1117/12.2202531

S. Luong, M. Alnassar, Pan Yue, A. Holland

{"title":"Optimisation of Schottky electrode geometry","authors":"S. Luong, M. Alnassar, Pan Yue, A. Holland","doi":"10.1117/12.2202531","DOIUrl":"https://doi.org/10.1117/12.2202531","url":null,"abstract":"The geometry of the Schottky contact electrode is important in the design of Schottky power diodes. This work focuses on the optimum shape of the Schottky contact geometry and uses finite element modeling to determine the effects of the shape on electrical characteristics of a diode. The investigation considers the typical situation where the contact is smaller than the substrate area. Simulations were run with different shapes ranging from perfect square to perfect circle with the size of the diode substrate (die) and the distance between the edge of the diode and edge of the Schottky contact as a constant. The different models were examined and compared with magnitude the occurrence of the maximum current density (for a particular output current) and hence the breakdown regions at current density approaching the critical value for breakdown (most likely destruction of a diode) due to high current density. There as an optimum geometry determined for the highest current that the given diode substrate could deliver. The results clearly show that the optimum geometry for the Schottky contact should be neither perfect square nor perfect circle, but an exact geometry in between. This optimum geometry gives the optimum distribution of current density around the edge of the Schottky contact. Investigation is done using Synopsys TCAD. The forward and reverse bias situations were investigated to optimize the electrode geometry.","PeriodicalId":320411,"journal":{"name":"SPIE Micro + Nano Materials, Devices, and Applications","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121116912","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1