scholarly journals Doped Semiconductor Nanocrystals: Development and Applications

2021 ◽  
Author(s):  
Anielle C.A. Silva ◽  
Eliete A. Alvin ◽  
Francisco R.A. dos Santos ◽  
Samanta L.M. de Matos ◽  
Jerusa M. de Oliveira ◽  
...  
Keyword(s):  
Zinc Oxide ◽  
Semiconductor Nanocrystals ◽  
Sodium Titanate ◽  
Biological Properties ◽  
Toxic Effects ◽  
Significant Progress ◽  
Bacterial Diseases ◽  
Physical Chemical ◽  
Glassy Systems

This chapter aims to show significant progress that our group has been developing and the applications of several doped semiconductor nanocrystals (NCs), as nanopowders or embedded in glass systems. Depending on the type of dopant incorporated in the nanocrystals, the physical, chemical, and biological properties can be intensified. However, it can also generate undesired toxic effects that can potentially compromise its use. Here we present the potential of zinc oxide NCs doped with silver (Ag), gold (Au), and magnesium (Mg) ions to control bacterial diseases in agriculture. We have also performed biocompatibility analysis of the pure and Ag-doped sodium titanate (Na2Ti3O7) NCs in Drosophila. The doped nanocrystals embedded in glassy systems are chrome (Cr) or copper (Cu) in ZnTe and Bi2Te3 NCs for spintronic development nanodevices. Therefore, we will show several advantages that doped nanocrystals may present in the technological and biotechnological areas.

Recent Advances in 1,3,5-Triazine Derivatives as Antibacterial Agents

2020 ◽  
Vol 17 (8) ◽  
pp. 991-1041
Author(s):  
Divya Utreja ◽  
Jagdish Kaur ◽  
Komalpreet Kaur ◽  
Palak Jain
Keyword(s):  
Antibacterial Activity ◽  
Heterocyclic Compounds ◽  
Antibacterial Agents ◽  
Rapid Development ◽  
Pharmacological Action ◽  
Biological Properties ◽  
Vast Array ◽  
Bacterial Diseases ◽  
New Class ◽  
Triazine Derivatives

Triazine, one of the nitrogen containing heterocyclic compounds has attracted the considerable interest of researchers due to the vast array of biological properties such as anti-viral, antitumor, anti-convulsant, analgesic, antioxidant, anti-depressant, herbicidal, insecticidal, fungicidal, antibacterial and anti-inflammatory activities offered by it. Various antibacterial agents have been synthesized by researchers to curb bacterial diseases but due to rapid development in drug resistance, tolerance and side effects, there had always been a need for the synthesis of a new class of antibacterial agents that would exhibit improved pharmacological action. Therefore, this review mainly focuses on the various methods for the synthesis of triazine derivatives and their antibacterial activity.

scholarly journals Effects of increasing hydrophobicity on the physical-chemical and biological properties of a class A amphipathic helical peptide

2001 ◽  
Vol 42 (7) ◽  
pp. 1096-1104 ◽  
Author(s):  
Geeta Datta ◽  
Manjula Chaddha ◽  
Susan Hama ◽  
Mohamad Navab ◽  
Alan M. Fogelman ◽  
...  
Keyword(s):  
Biological Properties ◽  
Class A ◽  
Physical Chemical ◽  
Helical Peptide

Nanobiotechnology: Nature-inspired silver nanoparticles towards green synthesis

2021 ◽  
pp. 0958305X2198988
Author(s):  
Nur Syakirah Rabiha Rosman ◽  
Noor Aniza Harun ◽  
Izwandy Idris ◽  
Wan Iryani Wan Ismail
Keyword(s):  
Electrical Conductivity ◽  
Silver Nanoparticles ◽  
Green Synthesis ◽  
Metal Nanoparticles ◽  
Current Trend ◽  
Biological Properties ◽  
Noble Metal Nanoparticles ◽  
Current Application ◽  
Physical Chemical ◽  
Physical And Chemical

The emergence of technology to produce nanoparticles (1 nm – 100 nm in size) has drawn significant researchers’ interests. Nanoparticles can boost the antimicrobial, catalytic, optical, and electrical conductivity properties, which cannot be achieved by their corresponding bulk. Among other noble metal nanoparticles, silver nanoparticles (AgNPs) have attained a special emphasis in the industry due to their superior physical, chemical, and biological properties, closely linked to their shapes, sizes, and morphologies. Proper knowledge of these NPs is essential to maximise the potential of biosynthesised AgNPs in various applications while mitigating risks to humans and the environment. This paper aims to critically review the global consumption of AgNPs and compare the AgNPs synthesis between conventional methods (physical and chemical) and current trend method (biological). Related work, advantages, and drawbacks are also highlighted. Pertinently, this review extensively discusses the current application of AgNPs in various fields. Lastly, the challenges and prospects of biosynthesised AgNPs, including application safety, oxidation, and stability, commercialisation, and sustainability of resources towards a green environment, were discussed.

Morphology Effect on Zinc Oxide Quantum Photoinitiators for Radical Polymerization

Nanoscale ◽  
2021 ◽  
Author(s):  
Alex Pinkas ◽  
Nir Waiskopf ◽  
Shira Gigi ◽  
Tom Naor ◽  
Almog Layani ◽  
...  
Keyword(s):  
Zinc Oxide ◽  
Radical Polymerization ◽  
Semiconductor Nanocrystals ◽  
Viable Alternative ◽  
Morphology Effect

Semiconductor nanocrystals based photoinitiators, quantum PIs, are a viable alternative for organic photoinitiators demonstrating unique advantages, including a broad and tunable excitation window, limited migration, and more. Aiming towards efficient...

scholarly journals Effect of Lignite Fly Ash on the Growth and Reproduction of Earthworm Eisenia fetida

2009 ◽  
Vol 6 (2) ◽  
pp. 511-517 ◽  
Author(s):  
S. Sarojini ◽  
S. Ananthakrishnasamy ◽  
G. Manimegala ◽  
M. Prakash ◽  
G. Gunasekaran
Keyword(s):  
Fly Ash ◽  
Eisenia Fetida ◽  
Power Plants ◽  
Thermal Power ◽  
Biological Properties ◽  
Cow Dung ◽  
Physical Chemical ◽  
Lignite Fly Ash ◽  
Agricultural Use ◽  
Growth And Reproduction

Fly ash is an amorphous ferroalumino silicate, an important solid waste around thermal power plants. It creates problems leading to environmental degradation due to improper utilization or disposal. However, fly ash is a useful ameliorant that may improve the physical, chemical and biological properties of soils and is a source of readily available plant macro and micronutrients when it is used with biosolids. Supply of nutrients from fly ash with biosolids may enhance their agricultural use. The growth and reproduction ofEisenia fetidawas studied during vermicomposting of fly ash with cowdung and pressmud in four different proportions (T1,T2,T3& T4) and one controli.e.,cow dung and pressmud alone. The growth, cocoon and hatchlings production were observed at the interval of 15 days over a period of 60 days. The maximum worm growth and reproduction was observed in bedding material alone. Next to that the T1was observed as the best mixture for vermiculture.

scholarly journals Micro: An International Open Access Journal for All of Microscale and Nanoscale Science

Micro ◽  
2021 ◽  
Vol 1 (1) ◽  
pp. 1-2
Author(s):  
Eiichi Tamiya
Keyword(s):  
Open Access ◽  
20Th Century ◽  
Special Interest ◽  
Biological Properties ◽  
Open Access Journal ◽  
Length Scale ◽  
Late 20Th Century ◽  
Physical Chemical ◽  
Nanoscale Science

Since the late 20th century, there has been a special interest in the microscale and nanoscale research investigating and exploiting the physical, chemical, and biological properties of these length-scale systems [...]

Assessment of Seasonal and Site-Specific Variations in Soil Physical, Chemical and Biological Properties Around Opencast Coal Mines

Pedosphere ◽  
2019 ◽  
Vol 29 (5) ◽  
pp. 642-655 ◽  
Author(s):  
Bhanu PANDEY ◽  
Arideep MUKHERJEE ◽  
Madhoolika AGRAWAL ◽  
Siddharth SINGH
Keyword(s):  
Coal Mines ◽  
Biological Properties ◽  
Site Specific ◽  
Physical Chemical ◽  
Opencast Coal Mines

Synthesis, characterization and biological properties of new hybrid carbosilane–viologen–phosphorus dendrimers

RSC Advances ◽  
2015 ◽  
Vol 5 (33) ◽  
pp. 25942-25958 ◽  
Author(s):  
Silvia Moreno ◽  
Aleksandra Szwed ◽  
Nabil El Brahmi ◽  
Katarzyna Milowska ◽  
Joanna Kurowska ◽  
...  
Keyword(s):  
Biological Properties ◽  
Onion Peel ◽  
Physical Chemical

Hybrid carbosilane–viologen–phosphorus dendrimers were prepared, as an example of the synthetic “onion peel” approach, on the search of new physical–chemical and biological properties, respecting traditional dendritic architectures.

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