Transforming lanthanide and actinide chemistry with nanoparticles

Nanoscale ◽  
2020 ◽  
Vol 12 (3) ◽  
pp. 1339-1348 ◽  
Author(s):  
Roger M. Pallares ◽  
Rebecca J. Abergel

This minireview summarizes and discusses recent progress on the use of nanoparticles in lanthanide and actinide chemistry. We examine different types of nanoparticles and critically analyze their performance in a comparative mode.

1996 ◽  
Vol 20 (6) ◽  
pp. 363-366 ◽  
Author(s):  
Sarah Marriott ◽  
Claire Palmer

Many sources of evidence inform clinical practice, including research findings, patients' views, and clinical experience. This article describes recent progress in developing what will be the College's first guideline, The Assessment and Management of Violence In Clinical Settings. The design of the programme acknowledges the diversity of evidence in this area, by drawing a distinction between different types of evidence. Evidence is systematically identified and its quality appraised by the Work Group, through commissioning literature reviews. Initial recommendations will be based on experimental data. The methods used to consider non-experimental data, particularly expert opinion, will be described in more detail in a later article in this series.


2011 ◽  
Vol 2011 ◽  
pp. 1-7 ◽  
Author(s):  
Nicole Rusca ◽  
Silvia Monticelli

MicroRNAs (miRNAs) are regulatory molecules able to influence all aspects of the biology of a cell. They have been associated with diseases such as cancer, viral infections, and autoimmune diseases, and in recent years, they also emerged as important regulators of immune responses. MiR-146a in particular is rapidly gaining importance as a modulator of differentiation and function of cells of the innate as well as adaptive immunity. Given its importance in regulating key cellular functions, it is not surprising that miR-146a expression was also found dysregulated in different types of tumors. In this paper, we summarize recent progress in understanding the role of miR-146a in innate and adaptive immune responses, as well as in disease.


2020 ◽  
Vol 8 ◽  
Author(s):  
Na Liu ◽  
Lina Wang ◽  
Fan Xu ◽  
Jiafeng Wu ◽  
Tinglu Song ◽  
...  

Monolithic perovskite/Silicon tandem solar cells have reached a certified efficiency of 29. 1% in recent years. In this review, we discuss material design for monolithic perovskite/Si tandem solar cells, with the focus on the top-cell development to improve their performance. Firstly, we introduce different types of transparent electrodes with high transmittance and low sheet-resistance used in tandem solar cells. We then discuss the development of the wide-bandgap perovskite absorber for top-cells, especially the strategies to obtain the perovskite layers with good efficiency and stability. In addition, as a special functional layer in tandem solar cells, the recombination layers play an important role in device performance, wherein different configurations are summarized. Furthermore, tandem device cost analysis is discussed. This review summarizes the progress of monolithic perovskite/Silicon tandem solar cells in a pragmatic perspective, which may promote the commercialization of this technology.


2020 ◽  
Vol 12 (22) ◽  
pp. 2795-2811 ◽  
Author(s):  
Houman Kholafazad Kordasht ◽  
Mohammad Hasanzadeh

Exosomes are membrane-bound extracellular vesicles (EVs) that are produced in the endosomal compartments of most eukaryotic cells; they play important roles in intercellular communication in diverse cellular processes and transmit different types of biomolecules.


2016 ◽  
Vol 4 (1) ◽  
Author(s):  
Mu-Fa Chen

AbstractThe main topic of this talk is the speed estimation of stability/instability. The word “various” comes with no surprising since there are a lot of different types of stability/instability and each of them has its own natural distance to measure. However, the adjective “unified” is very much unexpected. The talk surveys our recent progress on the topic, made in the past five years or so.


2003 ◽  
Vol 210 ◽  
pp. 3-18 ◽  
Author(s):  
Bengt Gustafsson

The old question whether models of stellar atmospheres are wrong, adequate, or even overelaborated, is discussed with a number of examples from contemporary research as a background. A simple quality classification scheme for models of different types is presented. It is concluded that, in spite of rapid recent progress, we are far from having fully satisfactory theoretical representations of stellar atmospheres. Reasons for continuing the efforts to reach a higher degree of physical consistency in model atmosphere work are discussed.


NANO ◽  
2020 ◽  
Vol 15 (09) ◽  
pp. 2030003
Author(s):  
Mohammad Asaduzzaman Chowdhury ◽  
Nayem Hossain ◽  
Mohammod Abul Kashem ◽  
Md. Abdus Shahid ◽  
Ashraful Alam

Viruses like COVID-19 are very small. They are nanometer in diameter. To detect and prevent them, nanotechnology is a crucial tool. This review paper reviews the recent progress of nanomedicine in fighting COVID-19. At the beginning, how nanoparticle works in our body is described here. Recent observations of these medicines’ performance are illustrated with some practical case studies. Different types of vaccines based on nanoparticles and their potentiality of fighting COVID-19 are also described. What can be the potential challenges for this technology along with prospects are also discussed. At the end, some nanomedicines have been suggested that can be effective to fight the virus. This paper can be used as a state-of-the-art at this critical moment to the globe for promising nanotechnology-based therapy related to the survival of people from coronavirus.


2017 ◽  
Vol 46 (7) ◽  
pp. 1875-1932 ◽  
Author(s):  
Yuemin Wang ◽  
Christof Wöll

In this review, we highlight recent progress (2008–2016) in infrared reflection absorption spectroscopy (IRRAS) studies on oxide powders achieved by using different types of metal oxide single crystals as reference systems.


Cancers ◽  
2021 ◽  
Vol 13 (9) ◽  
pp. 2058
Author(s):  
Raúl Ortíz ◽  
Francisco Quiñonero ◽  
Beatriz García-Pinel ◽  
Marco Fuel ◽  
Cristina Mesas ◽  
...  

The development of drug resistance is one of the main causes of cancer treatment failure. This phenomenon occurs very frequently in different types of cancer, including colon and pancreatic cancers. However, the underlying molecular mechanisms are not fully understood. In recent years, nanomedicine has improved the delivery and efficacy of drugs, and has decreased their side effects. In addition, it has allowed to design drugs capable of avoiding certain resistance mechanisms of tumors. In this article, we review the main resistance mechanisms in colon and pancreatic cancers, along with the most relevant strategies offered by nanodrugs to overcome this obstacle. These strategies include the inhibition of efflux pumps, the use of specific targets, the development of nanomedicines affecting the environment of cancer-specific tissues, the modulation of DNA repair mechanisms or RNA (miRNA), and specific approaches to damage cancer stem cells, among others. This review aims to illustrate how advanced nanoformulations, including polymeric conjugates, micelles, dendrimers, liposomes, metallic and carbon-based nanoparticles, are allowing to overcome one of the main limitations in the treatment of colon and pancreatic cancers. The future development of nanomedicine opens new horizons for cancer treatment.


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