scholarly journals Recent advances in porous silicon-based therapeutic delivery

2015 ◽  
Vol 6 (2) ◽  
pp. 97-100 ◽  
Author(s):  
Timothy J Barnes ◽  
Clive A Prestidge
2018 ◽  
Vol 86 (1) ◽  
pp. 47-52
Author(s):  
Gael Gautier ◽  
Jérôme Billoué ◽  
Thomas Defforge ◽  
Bin Lu ◽  
Benjamin Bardet ◽  
...  

ChemBioChem ◽  
2021 ◽  
Author(s):  
William Copp ◽  
Alexander Pontarelli ◽  
Christopher James Wilds

2015 ◽  
Vol 2015 ◽  
pp. 1-10 ◽  
Author(s):  
Tero Jalkanen ◽  
Anni Määttänen ◽  
Ermei Mäkilä ◽  
Jaani Tuura ◽  
Martti Kaasalainen ◽  
...  

A roll-to-roll compatible fabrication process of porous silicon (pSi) based sensing elements for a real-time humidity monitoring is described. The sensing elements, consisting of printed interdigitated silver electrodes and a spray-coated pSi layer, were fabricated on a coated paper substrate by a two-step process. Capacitive and resistive responses of the sensing elements were examined under different concentrations of humidity. More than a three orders of magnitude reproducible decrease in resistance was measured when the relative humidity (RH) was increased from 0% to 90%. A relatively fast recovery without the need of any refreshing methods was observed with a change in RH. Humidity background signal and hysteresis arising from the paper substrate were dependent on the thickness of sensing pSi layer. Hysteresis in most optimal sensing element setup (a thick pSi layer) was still noticeable but not detrimental for the sensing. In addition to electrical characterization of sensing elements, thermal degradation and moisture adsorption properties of the paper substrate were examined in connection to the fabrication process of the silver electrodes and the moisture sensitivity of the paper. The results pave the way towards the development of low-cost humidity sensors which could be utilized, for example, in smart packaging applications or in smart cities to monitor the environment.


2017 ◽  
Vol 8 (7) ◽  
pp. 543-556 ◽  
Author(s):  
Hollie Hathaway ◽  
Scarlet Milo ◽  
J Mark Sutton ◽  
Toby A Jenkins

Materials ◽  
2018 ◽  
Vol 11 (12) ◽  
pp. 2557 ◽  
Author(s):  
Seo Lee ◽  
Jae Kang ◽  
Dokyoung Kim

Porous silicon has been utilized within a wide spectrum of industries, as well as being used in basic research for engineering and biomedical fields. Recently, surface modification methods have been constantly coming under the spotlight, mostly in regard to maximizing its purpose of use. Within this review, we will introduce porous silicon, the experimentation preparatory methods, the properties of the surface of porous silicon, and both more conventional as well as newly developed surface modification methods that have assisted in attempting to overcome the many drawbacks we see in the existing methods. The main aim of this review is to highlight and give useful insight into improving the properties of porous silicon, and create a focused description of the surface modification methods.


Author(s):  
Gerhard Müller ◽  
Alois Friedberger ◽  
Kathrin Knese
Keyword(s):  

2018 ◽  
Vol 91 (1) ◽  
pp. 441-467 ◽  
Author(s):  
Sofia Arshavsky-Graham ◽  
Naama Massad-Ivanir ◽  
Ester Segal ◽  
Sharon Weiss

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