scholarly journals Porous Silicon Optical Biosensors: Still a Promise or a Failure?

Sensors ◽  
2019 ◽  
Vol 19 (21) ◽  
pp. 4776 ◽  
Author(s):  
Luca De Stefano

Even if the first published article on a porous silicon (PSi)-based biosensor dates back to more than twenty years ago, this technology still attracts great attention from many research groups around the world. In this brief review, the pros and cons of porous silicon-based optical biosensors will be highlighted on the basis of some recent results and published papers on this subject. The aim of the paper is to give a straightforward introduction to PhD students and young researchers on this subject, which is particularly full of educative content, since it is highly multidisciplinary. Fabrication of PSi-based optical biosensors requires competencies related to many different scientific topics ranging from material science, physics and optics to healthcare and environmental monitoring through surface chemistry and more.

2007 ◽  
Vol 38 (1-2) ◽  
pp. 188-192 ◽  
Author(s):  
Ivo Rendina ◽  
Ilaria Rea ◽  
Lucia Rotiroti ◽  
Luca De Stefano

2010 ◽  
Vol 20 (17) ◽  
pp. 2874-2883 ◽  
Author(s):  
Anne M. Ruminski ◽  
Brian H. King ◽  
Jarno Salonen ◽  
Jay L. Snyder ◽  
Michael J. Sailor

2018 ◽  
Vol 3 (1) ◽  
Author(s):  
Erin C. Pischke ◽  
Lucía Pérez Volkow ◽  
Mayra Fragoso-Medina ◽  
Laura Aguirre franco

In November 2016, a group of students from the Americas participated in an Inter-American Institute for Global Change Researchfunded two-week course organized by professors from the National Autonomous University of Mexico. The aim was to teach students and young researchers how to collaborate with non-scientists to conduct socioecological systems research in a transdisciplinary manner. This article will review the benefits as well as the challenges to doing so. It concludes with recommendations that other research teams can follow when conducting similar research that crosses disciplinary and international borders.


2020 ◽  
Vol 26 ◽  
Author(s):  
Sridevi Vaadala ◽  
Naveen Ponneri ◽  
Venkat Shashank Karnam ◽  
Ramachandra Reddy Pamuru ◽  
Mohammed Arifullah

Background: Phytoestrogens are non-endocrine, non-steroidal secondary derivatives of plants and consumed through plant-based diet also named as “dietary estrogens”. The major sources of phytoestrogens are soy and soy-based foods, flax seed, chickpeas, green beans, dairy products, etc. The dietary inclusion of phytoestrogen based foods play a crucial role in the maintenance of metabolic syndrome cluster including obesity, diabetes, blood pressure, cancer, inflammation, cardiovascular diseases, postmenopausal ailments and their complications. In recent days, phytoestrogens are the preferred molecules for hormone replacement therapy. On the other hand, they act as endocrine disruptors via estrogen receptor mediated pathways. These effects are not restricted to adult males or females and identified even in development. Objective: Since phytoestrogenic occurrence is high at daily meal for most people from all over the world, they focused to study for its beneficiary effects towards developing pharmaceutical drugs for treating various metabolic disorders by keeping an eye on endocrine disruption. Conclusion: The present review emphasizes the pros and cons of phytoestrogens on human health, which may help to direct the pharmaceutical industry to produce various phytoestrongen based drugs against various metabolic disorders.


Author(s):  
Valeria Seidita ◽  
Francesco Lanza ◽  
Arianna Pipitone ◽  
Antonio Chella

Abstract Motivation The epidemic at the beginning of this year, due to a new virus in the coronavirus family, is causing many deaths and is bringing the world economy to its knees. Moreover, situations of this kind are historically cyclical. The symptoms and treatment of infected patients are, for better or worse even for new viruses, always the same: more or less severe flu symptoms, isolation and full hygiene. By now man has learned how to manage epidemic situations, but deaths and negative effects continue to occur. What about technology? What effect has the actual technological progress we have achieved? In this review, we wonder about the role of robotics in the fight against COVID. It presents the analysis of scientific articles, industrial initiatives and project calls for applications from March to now highlighting how much robotics was ready to face this situation, what is expected from robots and what remains to do. Results The analysis was made by focusing on what research groups offer as a means of support for therapies and prevention actions. We then reported some remarks on what we think is the state of maturity of robotics in dealing with situations like COVID-19.


Epidemiologia ◽  
2021 ◽  
Vol 2 (3) ◽  
pp. 315-324
Author(s):  
Juan M. Banda ◽  
Ramya Tekumalla ◽  
Guanyu Wang ◽  
Jingyuan Yu ◽  
Tuo Liu ◽  
...  

As the COVID-19 pandemic continues to spread worldwide, an unprecedented amount of open data is being generated for medical, genetics, and epidemiological research. The unparalleled rate at which many research groups around the world are releasing data and publications on the ongoing pandemic is allowing other scientists to learn from local experiences and data generated on the front lines of the COVID-19 pandemic. However, there is a need to integrate additional data sources that map and measure the role of social dynamics of such a unique worldwide event in biomedical, biological, and epidemiological analyses. For this purpose, we present a large-scale curated dataset of over 1.12 billion tweets, growing daily, related to COVID-19 chatter generated from 1 January 2020 to 27 June 2021 at the time of writing. This data source provides a freely available additional data source for researchers worldwide to conduct a wide and diverse number of research projects, such as epidemiological analyses, emotional and mental responses to social distancing measures, the identification of sources of misinformation, stratified measurement of sentiment towards the pandemic in near real time, among many others.


2021 ◽  
pp. 251512742199252
Author(s):  
Robert A. Boyle ◽  
Jerome A. Katz ◽  
Patricia G. Bagsby

For entrepreneurs, being offered a distribution deal by Walmart seems like a dream come true. After all, what better way to have a new product quickly appear in thousands of stores all around the United States or maybe even all around the world? This dream became a reality for Marty, the creator of Tiny Sips—a simple, wholesome children’s beverage made from Montana spring water and all-natural ingredients. As the details and conditions related to the distribution deal became apparent, however, Marty soon understood that doing business at that level requires sophisticated entrepreneurial savvy and a great deal of capital. The joy of possibly selling Tiny Sips everywhere suddenly became eclipsed by questions about how to raise enough cash to scale quickly while simultaneously minimizing risk. Marty needed to employ the business acumen necessary to slow down, consider the pros and cons, and make the best decision for his company. The educational focus of this case involves weighing the entrepreneurial risks and rewards of pursuing a deal with a large retailer like Walmart. While this type of opportunity may seem exciting at first glance, a variety of factors must be considered in order to find a thoughtful and sensible path forward.


2014 ◽  
Vol 672-674 ◽  
pp. 2195-2210
Author(s):  
Ang Li ◽  
Shu Bin Kan ◽  
Xin Zhang ◽  
Xin Yu Song ◽  
Shi Long Zhang

The region of Yushu has fragile natural environment. In 2010, it suffered severe damages caused by earthquakes. This paper subject, on the basis of status research of natural and cultural environment in Yushu area and urban public facilities across the world, is aiming at a design attempt of public facilities suitable for Yushu area under the guidance of sustainable-development design theory. After constructing computer models, we made physical models to further test the reliability of our scheme. The overall design acts according to circumstances, and makes it environmental friendly, developmental sustainable, economical, aesthetic, practical and reliable. We also added to our design some local characteristics to make it better integrate into the local natural environmental features so that it could be widely used. In the end, we summarized the pros and cons of the scheme through theoretical analysis of our design process, despite that, in June 2014, we had an on-the-spot investigation in Yushu, and according to its current state of development, we made outlooks of our further scheme practice.


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