Fluorescent metal quantum clusters: an updated overview of the synthesis, properties, and biological applications

2017 ◽  
Vol 5 (46) ◽  
pp. 9055-9084 ◽  
Author(s):  
Puneet Khandelwal ◽  
Pankaj Poddar
Keyword(s):  
Physical Properties ◽  
Synthesis Methods ◽  
Biological Applications ◽  
Quantum Clusters ◽  
Synthesis Properties ◽  
History Of

A brief history of metal quantum clusters, their synthesis methods, physical properties, and an updated overview of their applications is provided.

TIN

Alloy Digest ◽  
1973 ◽  
Vol 22 (12) ◽  
Keyword(s):  
Fracture Toughness ◽  
Corrosion Resistance ◽  
High Temperature ◽  
Physical Properties ◽  
Heat Treating ◽  
Collapsible Tubes ◽  
Temperature Performance ◽  
History Of ◽  
Important Constituent ◽  
Varied History

Abstract TIN is used as a coating on steel and on other metals and alloys. When alloyed with other metals, it is an important constituent in soft solders, collapsible tubes, pewter ware, costume jewelry, fusable pressure plugs, bronze and bearing linings. It has a long and varied history of commercial and ornamental uses. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties as well as fracture toughness and creep. It also includes information on low and high temperature performance, and corrosion resistance as well as casting, forming, heat treating, machining, and joining. Filing Code: Sn-5. Producer or source: World tin producers (ingots).

XIV. Researches into the molecular constitution of the organic bases

1851 ◽  
Vol 141 ◽  
pp. 357-398 ◽  
Keyword(s):  
Physical Properties ◽  
Royal Society ◽  
General Outline ◽  
Organic Bases ◽  
History Of ◽  
The Subject ◽  
Molecular Constitution

About twelve months ago I had the honour of presenting to the Royal Society an account of a series of researches into the molecular constitution of the volatile organic bases: at present I beg to submit to the consideration of the Society the history of a new group of alkaloids, which, although intimately connected with the former by their origin, differ from them altogether by their properties, and especially in not being volatile . The members of this new group of alkaloids are so numerous, their deportment is so singular, and their derivatives ramify in so many directions, that I have not as yet been able to complete the study of these substances in all their bearings; nor is it my intention to go fully into the chemistry of the subject in the present com­munication, my object being merely to establish the existence of these bodies, and to give a general outline of their connection with the volatile bases, and of their most prominent chemical and physical properties, reserving a detailed description of their salts and derivatives to a future memoir.

scholarly journals Calcium carbonate nano- and microparticles: synthesis methods and biological applications

3 Biotech ◽  
2021 ◽  
Vol 11 (11) ◽  
Author(s):  
Preksha Fadia ◽  
Simona Tyagi ◽  
Stuti Bhagat ◽  
Abhishek Nair ◽  
Pooja Panchal ◽  
...  
Keyword(s):  
Calcium Carbonate ◽  
Synthesis Methods ◽  
Biological Applications

scholarly journals Mechanical properties of oats and oat products

2008 ◽  
Vol 13 (1-2) ◽  
pp. 113 ◽  
Author(s):  
F. K. GATES ◽  
B. DOBRASZCZYK
Keyword(s):  
Mechanical Properties ◽  
Chemical Composition ◽  
Physical Properties ◽  
Product Quality ◽  
Food Processing ◽  
Food Products ◽  
Heat Treatments ◽  
Influence Of Water ◽  
History Of ◽  
Quality Water

The aim of this review is to illustrate how physical properties are important to food processing and quality. Three food products, flakes, porridge and bread, in addition to oat groats are used to show the influence of water and heat-treatments on the mechanical properties. The hydrothermal history of ingredients is shown to affect product quality. Water acts as a plasticiser and solvent in these foods, whilst heat modifies the conformation and interactions of macromolecular components. Structure as well as chemical composition is shown to govern texture.;

The Role of Aromatase Enzyme in Hormone Related Diseases and Plant-Based Aromatase Inhibitors as Therapeutic Regimens

2021 ◽  
Vol 21 ◽  
Author(s):  
Kevser Taban Akça ◽  
Murside Ayşe Demirel ◽  
Ipek Süntar
Keyword(s):  
Natural Products ◽  
Aromatase Inhibitors ◽  
Inhibitory Activity ◽  
Chemical Compounds ◽  
Synthesis Methods ◽  
Herbal Drugs ◽  
Drug Discovery And Development ◽  
History Of ◽  
History Of Use

: Medicinal plants have a long history of use as food and remedy in traditional and modern societies, as well as have been used as herbal drugs and sources of novel bioactive compounds. They provide a wide array of chemical compounds, many of which can not be synthesized via current synthesis methods. Natural products may provide aromatase inhibitory activity through various pathways and may act clinically effective for treating pathologies associated with excessive aromatase secretion including breast, ovarian and endometrial cancers, endometriosis, uterine fibroid, benign prostatic hyperplasia (BPH), prostate cancer, infertility, and gynecomastia. Recent studies have shown that natural products with aromatase inhibitory activity, could also be good options against secondary recurrence of breast cancer by exhibiting chemopreventive effects. Therefore, screening for new plant-based aromatase inhibitors may provide novel leads for drug discovery and development, particularly with increased clinical efficacy and decreased side effects.

Quantum Dots Based Material for Drug Delivery Applications

2021 ◽  
pp. 191-215
Keyword(s):  
Drug Delivery ◽  
Quantum Dots ◽  
Particle Size ◽  
Physical Properties ◽  
Semiconductor Nanoparticles ◽  
Cellular Imaging ◽  
Biological Applications ◽  
Distinct Class ◽  
Imaging Probes ◽  
Biomedical Field

Quantum dots (QDs) have shown promising potential to many biomedical and biological applications, mainly in drug delivery or activation and cellular imaging. These semiconductor nanoparticles, QDs, whose particle size is in the range of 2-10 nanometer with unique photo-chemical and -physical properties that are not possessed by any other isolated molecules, have become one of the distinct class of imaging probes and worldwide platforms for manufacturing of multifunctional nanodevices. In this chapter, properties, applications of QDs, and importance in the biomedical field especially in drug delivery is presented.

scholarly journals Developments in Platinum-Group Metals as Dual Antibacterial and Anticancer Agents

2019 ◽  
Vol 2019 ◽  
pp. 1-18 ◽  
Author(s):  
Ayodele T. Odularu ◽  
Peter A. Ajibade ◽  
Johannes Z. Mbese ◽  
Opeoluwa O. Oyedeji
Keyword(s):  
Anticancer Drugs ◽  
Anticancer Agents ◽  
Coordination Compounds ◽  
Biological Activities ◽  
Platinum Group Metals ◽  
Biological Applications ◽  
Efficient Delivery ◽  
History Of ◽  
Platinum Group ◽  
Half Sandwich

Platinum-group (PG) complexes have been used as antibacterial and anticancer agents since the discovery of cisplatin. The science world still requires improvement on these complexes because of multidrug and antineoplastic resistances. This review observes discoverers and history of these platinum-group metals (PGMs), as well as their beneficial applications. The focus of this study was biological applications of PGMs in relation to human health. Sandwich and half-sandwich PGM coordination compounds and their metal nanoparticles give improved results for biological activities by enhancing efficient delivery of both antibacterial and anticancer drugs, as well as luminescent bioimaging (biomarkers) for biological identifications.

Dating Papyri: Familiarity, Instinct and Guesswork1

2019 ◽  
Vol 42 (1) ◽  
pp. 58-83
Author(s):  
Malcolm Choat
Keyword(s):  
Seventeenth Century ◽  
Physical Properties ◽  
Scientific Knowledge ◽  
Script Language ◽  
History Of ◽  
Contemporary Practice ◽  
Language Content

This article surveys the history of palaeographical dating of papyri, reflecting on its origins as a system, and what lessons this might have for contemporary practice. In examining the beginnings of palaeography as a discipline in the late seventeenth century with the work of scholars such as Jean Mabillon, it highlights the concerns of that period, especially the authenticity of documents. In this context, palaeographical dating was only one (though of course an important component) of a range of tools scholars used to date and authenticate texts. In the same way, contemporary scholars use an array of methods to date the texts they study, including script, language, content, and the physical properties of the ink and its support. This article highlights the importance of understanding the limitations of each of these methods, whether caused by their subjective nature or the current limits of scientific knowledge, and emphasizes one of the key lessons of Mabillon’s practice, the broad familiarity with many types of script and manuscript which allow these to be properly contextualized and understood.

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