Concepts of Nanotechnology

Busquets, Rosa; Mbundi, Lubinda

doi:10.1016/b978-0-323-42980-1.00001-7

Cited by 7 publications

(12 citation statements)

References 17 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In general, the gastrointestinal tract undergoes the exposure of ‘exogenous’ and ‘endogenous’ NPs [ 92 , 93 ]. TiO 2 or silicates/aluminosilicates are classified as exogenous inorganic particles [ 94 ] and they are largely used in food industries and in the pharmaceutical industry as an additive [ 95 ]. The commercial labelled E171 for TiO 2 is also present in sweets [ 96 ] with the quantity ranging between 1–5 µg/mg of E171.…”

Section: Nps Routes Of Entry and Toxicitymentioning

confidence: 99%

Exposure to Inorganic Nanoparticles: Routes of Entry, Immune Response, Biodistribution and In Vitro/In Vivo Toxicity Evaluation

Matteis

2017

Toxics

237

145

View full text Add to dashboard Cite

The development of different kinds of nanoparticles, showing different physico-chemical properties, has fostered their large use in many fields, including medicine. As a consequence, inorganic nanoparticles (e.g., metals or semiconductors), have raised issues about their potential toxicity. The scientific community is investigating the toxicity mechanisms of these materials, in vitro and in vivo, in order to provide accurate references concerning their use. This review will give the readers a thorough exploration on the entry mechanisms of inorganic nanoparticles in the human body, such as titanium dioxide nanoparticles (TiO2NPs), silicon dioxide nanoparticles (SiO2NPs), zinc oxide nanoparticles (ZnONPs), silver nanoparticles (AgNPs), gold nanoparticles (AuNPs) and quantum dots (QDsNPs). In addition, biodistribution, the current trends and novelties of in vitro and in vivo toxicology studies will be discussed, with a particular focus on immune response.

show abstract

Section: Nps Routes Of Entry and Toxicitymentioning

confidence: 99%

Exposure to Inorganic Nanoparticles: Routes of Entry, Immune Response, Biodistribution and In Vitro/In Vivo Toxicity Evaluation

Matteis

2017

Toxics

237

145

View full text Add to dashboard Cite

show abstract

“…Controlled structure reduction to nanometric sizes favors unique and exceptional properties, which leads to significant application potentials for small materials. [ 1–4 ] The nano prefix is added to denote the small size of a certain object, and can be applied to any measurement unit, referring to one billionth of that unit, so that one nanometer is equivalent to 10 −9 m. [ 1–4 ]…”

Section: Introductionmentioning

confidence: 99%

“…To fully exploit and apply nanoparticle properties, a controlled production is necessary, both in size and morphology as well as in chemical composition and crystalline structure. [ 2–4 ] In general, nanoconstruction is categorized as bottom‐up and top‐down (Figure 1). [ 4,5 ] The former consists in a nanofabrication leading to atomic or molecular precursors that are allowed to react and grow in size, or self‐assemble into more complex structures.…”

Section: Introductionmentioning

confidence: 99%

“…This is an important and economically attractive property, as it allows for a given mass of nanoparticles to become several times more reactive and efficient than the particulate mass in equivalent macroscopic dimensions. [ 2 ]…”

Section: Introductionmentioning

confidence: 99%

“…The interdisciplinarity of nanotechnology has attracted significant attention, as it can be manifested through several types of materials, such as polymers, ceramics, metals, semiconductors, composites, biomaterials and even living organism derivatives. [ 1–3 ]…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Voltammetric and spectroscopic studies of water/formamide ratios in the production of the cerium (III) hexacyanoferrate (II) nanoparticles

Carmo

Oliveira

2022

J Chinese Chemical Soc

View full text Add to dashboard Cite

The present study describes the simple and fast preparation of Cerium (III) hexacyanoferrate (II) (CeHCF) solid nanoparticles at three different water/formamide (%) ratios used as solvent (v/v) (100:0, 80:20, 0:100). CeHCF nanoparticles (Nps) were characterized by fourier transform infrared pectroscopy (FTIR), x‐ray diffraction (XRD), scanning electron microscopy (SEM), zeta potential and cyclic voltammetry (CV). Electrodes modified with CeHCF presented a well‐defined redox pair with formal potential (Eo′) of approximately 0.29 V (vs. Ag/AgCl(sat) attributed to the Fe2 +/Fe3+ redox pair in the presence of cerium (III)). The Nps in the three systems investigates, presents a random size distribution to different surface, where most were distributed between 20 and 160 nm. Considering the three investigated systems, only CeHCF‐1 (100:0) was sensitive to L‐dopamine, presenting a linear signal region as a function of L‐dopamine concentrations, with a limit of detection (LD) of 0.125 mmol L−1, limit of quantification (LQ) of 0.419 mmol L−1 and amperometric sensitivity (S) of 148.16 μA mmol L−1.

show abstract

Critical Review on Nutritional, Bioactive, and Medicinal Potential of Spices and Herbs and Their Application in Food Fortification and Nanotechnology

Mandal

Sarkar

Chakraborty

2022

Appl Biochem Biotechnol

View full text Add to dashboard Cite

Medicinal or herbal spices are grown in tropical moist evergreen forestland, surrounding most of the tropical and subtropical regions of Eastern Himalayas in India (Sikkim, Darjeeling regions), Bhutan, Nepal, Pakistan, Iran, Afghanistan, a few Central Asian countries, Middle East, USA, Europe, South East Asia, Japan, Malaysia, and Indonesia. According to the cultivation region surrounded, economic value, and vogue, these spices can be classified into major, minor, and colored tropical spices. In total, 24 tropical spices and herbs (cardamom, black jeera, fennel, poppy, coriander, fenugreek, bay leaves, clove, chili, cassia bark, black pepper, nutmeg, black mustard, turmeric, saffron, star anise, onion, dill, asafoetida, celery, allspice, kokum, greater galangal, and sweet flag) are described in this review. These spices show many pharmacological activities like anti-inflammatory, antimicrobial, anti-diabetic, anti-obesity, cardiovascular, gastrointestinal, central nervous system, and antioxidant activities. Numerous bioactive compounds are present in these selected spices, such as 1,8-cineole, monoterpene hydrocarbons, γ-terpinene, cuminaldehyde, trans-anethole, fenchone, estragole, benzylisoquinoline alkaloids, eugenol, cinnamaldehyde, piperine, linalool, malabaricone C, safrole, myristicin, elemicin, sinigrin, curcumin, bidemethoxycurcumin, dimethoxycurcumin, crocin, picrocrocin, quercetin, quercetin 4’-O-β-glucoside, apiol, carvone, limonene, α-phellandrene, galactomannan, rosmarinic acid, limonene, capsaicinoids, eugenol, garcinol, and α-asarone. Other than that, various spices are used to synthesize different types of metal-based and polymer-based nanoparticles like zinc oxide, gold, silver, selenium, silica, and chitosan nanoparticles which provide beneficial health effects such as antioxidant, anti-carcinogenic, anti-diabetic, enzyme retardation effect, and antimicrobial activity. The nanoparticles can also be used in environmental pollution management like dye decolorization and in chemical industries to enhance the rate of reaction by the use of catalytic activity of the nanoparticles. The nutritional value, phytochemical properties, health advantages, and both traditional and modern applications of these spices, along with their functions in food fortification, have been thoroughly discussed in this review

show abstract

Concepts of Nanotechnology

Cited by 7 publications

References 17 publications

Exposure to Inorganic Nanoparticles: Routes of Entry, Immune Response, Biodistribution and In Vitro/In Vivo Toxicity Evaluation

Exposure to Inorganic Nanoparticles: Routes of Entry, Immune Response, Biodistribution and In Vitro/In Vivo Toxicity Evaluation

Voltammetric and spectroscopic studies of water/formamide ratios in the production of the cerium (III) hexacyanoferrate (II) nanoparticles

Critical Review on Nutritional, Bioactive, and Medicinal Potential of Spices and Herbs and Their Application in Food Fortification and Nanotechnology

Contact Info

Product

Resources

About