Low-Cost and Disposable Electrowetting-on-Dielectric Lab on a Chip With an Integrated Electrochemical Detector Fabricated by Screen-Printing Process

2019 ◽  
Vol 19 (19) ◽  
pp. 8597-8604 ◽  
Author(s):  
Kessararat Ugsornrat ◽  
Patiya Pasakon ◽  
Chanpen Karuwan ◽  
Chakrit Sriprachuabwong ◽  
Thitima Maturos ◽  
...  
Humaniora ◽  
2010 ◽  
Vol 1 (2) ◽  
pp. 778
Author(s):  
Laura Christina Luzar

Silk screen printing is the most demanding printing until now. Besides the processing was easy and simple, this printing technique is easy to be understood in a relatively short time. The most important thing in silk screen printing is perseverance, accuration, and creativity. By the relatively low cost, could begin to learn silk screen printing technique.The processing of silk screen printing can be done manually, with a drop of equipment. Starting from the process of image planning, copy process, until the printing process, all of these phases could be done without the support of developing technologies. However it can not be denied that the rapidly developing technologies make the work easier. 


2011 ◽  
Vol 335-336 ◽  
pp. 1406-1411 ◽  
Author(s):  
Qin Miao Chen ◽  
Xiao Ming Dou ◽  
Zhen Qing Li ◽  
Shu Yi Cheng ◽  
Song Lin Zhuang

Cu2ZnSnS4(CZTS) film was prepared by screen printing process with the advantages of simple, high-effective and cost-effective. The annealing effects on the screen printed CZTS films were studied. It was found that the crystallinity of the CZTS can be effectively improved by the annealing process, whereas overlong annealing can also introduce defects to the CZTS. The bandgap value of the CZTS is about 1.4 eV. The short-circuit current density, open-circuit voltage, fill factor and conversion efficiency of the best solar cell with superstrate structure of Carbon/CZTS/In2S3/TiO2/FTO glass (without using any vacuum conditions) are 6.20 mA/cm2, 290 mV, 0.29 and 0.53%, respectively.


RSC Advances ◽  
2021 ◽  
Vol 11 (33) ◽  
pp. 20550-20556
Author(s):  
Isao Shitanda ◽  
Kanako Oda ◽  
Noya Loew ◽  
Hikari Watanabe ◽  
Masayuki Itagaki ◽  
...  

Bio-composite inks based on magnesium oxide (MgO)-templated mesoporous carbon (MgOC) and chitosan cross-linked with genipin for one-step screen-printing process.


Micromachines ◽  
2020 ◽  
Vol 11 (5) ◽  
pp. 474 ◽  
Author(s):  
Bei Wang ◽  
Manuel Baeuscher ◽  
Xiaodong Hu ◽  
Markus Woehrmann ◽  
Katharina Becker ◽  
...  

A novel capacitive sensor for measuring the water-level and monitoring the water quality has been developed in this work by using an enhanced screen printing technology. A commonly used environment-friendly conductive polymer poly(3,4-ethylenedioxythiophene):poly (styrenesulfonate) (PEDOT:PSS) for conductive sensors has a limited conductivity due to its high sheet resistance. A physical treatment performed during the printing process has reduced the sheet resistance of printed PEDOT:PSS on polyethylenterephthalat (PET) substrate from 264.39 Ω/sq to 23.44 Ω/sq. The adhesion bonding force between printed PEDOT:PSS and the substrate PET is increased by using chemical treatment and tested using a newly designed adhesive peeling force test. Using the economical conductive ink PEDOT:PSS with this new physical treatment, our capacitive sensors are cost-efficient and have a sensitivity of up to 1.25 pF/mm.


2012 ◽  
Vol 95 (3) ◽  
pp. 773-777 ◽  
Author(s):  
Leonardo Luiz Okumura ◽  
Luis Octávio Regasini Regasini ◽  
Daniara Cristina Fernandes ◽  
Dulce Helena Siqueira da Silva ◽  
Maria Valnice Boldrin Zanoni ◽  
...  

Abstract A fast, low-cost, convenient, and especially sensitive voltammetric screening approach for the study of the antioxidant properties of isoquercitrin and pedalitin from Pterogyne nitens is suggested in this work. These flavonoids were investigated for their redox properties using cyclic voltammetry in nonaqueous media using N,N-dimethylformamide and tetrabutylammonium tetrafluorborate as the supporting electrolyte, a glassy carbon working electrode, Ag|AgCl reference electrode, and Pt bare wire counter electrode. The comparative analysis of the activity of rutin has also been carried out. Moreover, combining HPLC with an electrochemical detector allowed qualitative and quantitative detection of micromolecules (e.g., isoquercitrin and pedalitin) that showed antioxidant activities. These results were then correlated to the inhibition of β-carotene bleaching determined by TLC autographic assay and to structural features of the flavonoids.


2010 ◽  
Author(s):  
Aminreza Ahari Kaleibar ◽  
Mona Rahbar ◽  
Marius Haiducu ◽  
Ash M. Parameswaran

2014 ◽  
Vol 1004-1005 ◽  
pp. 799-802 ◽  
Author(s):  
Chang Lang Chen ◽  
Yu Tung Chang ◽  
Sheng Hao Taso ◽  
Weichieh Hsu

The In-Mold Roller is a revolutionary printing process by which objects are 3D decorated. Products decorated by In-Mold Roller are waterproof and protected from fading. What’s more, these kinds of decorations strongly increase the beauty, desirability and value of the objects. The In-Mold Roller is now using either of gravure printing and screen printing to print PET film. However, there are some problems with these two techniques. This research is to investigate potential usages of combining In-Mold Roller with digital UV inkjet printing in 3D decoration, e.g. in personalized printing services. Study results found that when the coverage and the resolution of inkjet printing become higher, the SIDs will become higher as well. When transferred to ABS, SIDs in each combination will increase. Each combination of inkjet conditions, with the isolation of white ink, color differences are less variant. TVIs of white ink decrease 30% to 40% halftone and display in “M” type. In print contrast, C and K colors of each combination are better than M and Y colors. After transferred into print contrast, each combination of PC will be higher about 2 to5. When transferred to ABS, color variances of each combination are not huge, and color differences are about 3to5.


2015 ◽  
Author(s):  
Rainer Gransee ◽  
Tristan Schneider ◽  
Deniz Elyorgun ◽  
Xenia Strobach ◽  
Tobias Schunck ◽  
...  

2017 ◽  
Vol 8 (2) ◽  
pp. 11-17
Author(s):  
Viktoriya Korotka ◽  
◽  
Svitlana Havenko ◽  
Kseniya Bazylyuk ◽  
◽  
...  

Sign in / Sign up

Export Citation Format

Share Document