Solid silica nanoparticles
SKU: 99177061314

Solid silica nanoparticles

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Description

Solid silica nanoparticlesProduct Name Name Solid silica nanoparticles Product Overview Silicon dioxide (SiO2) is one of the most abundant, structurally complex, and widely used inorganic materials on Earth. It has many forms, such as quartz crystal, amorphous silicon dioxide solid, silicon dioxide colloid and different kinds of aerogels. Generally, the silicon atoms in silicon dioxide molecules are tetrahedral coordinated, consisting of four oxygen atoms surrounding a central

Product Name

Name :Solid silica nanoparticles 

 

Product Overview

Silicon dioxide (SiO2) is one of the most abundant, structurally complex, and widely used inorganic materials on Earth. It has many forms, such as quartz crystal, amorphous silicon dioxide solid, silicon dioxide colloid and different kinds of aerogels. Generally, the silicon atoms in silicon dioxide molecules are tetrahedral coordinated, consisting of four oxygen atoms surrounding a central Si atom. In recent years, silica particles have shown significant value in the fields of materials chemistry and physics due to their adjustable size, morphology, microstructure, and easy surface functionalization. Particularly, silica particles functionalized with various functional groups have been widely used in catalysis, adsorption, sensing, and biomedical applications. The synthesis methods of silica particles include: sol gel method, lotion method, precipitation method and chemical vapor deposition method, among which the sol gel method is often used in the laboratory due to the high quality of silica particles. In the sol gel method, tetraethyl silicate (TEOS), tetramethyl silicate (TMOS) and polysiloxane are usually selected as the silicon source, ammonia is used as the catalyst, and is dispersed into a suitable solvent (alcohol or water) to form a solution. By controlling the pH value, the silicon source is hydrolyzed to obtain a sol system, and then aged to gel. Finally, the solvent is evaporated by heat treatment to obtain monodisperse silica nanoparticles, which is also referred to as the Stober method.


Technical Parameter

Status:White suspension

Solvent:Water

Solid content:.5%


 

Application Fields

 

1. Controllable particle size: By adjusting reaction conditions such as reactant concentration, reaction time, temperature, etc., the size of silica particles can be accurately controlled.

2. Good monodispersity: The prepared solid silica particles have good monodispersity, that is, the particle size distribution is relatively uniform.

3. Adjustable surface properties: Its surface chemical properties can be changed through subsequent surface modifications to meet different application requirements. Such as amination (APTES modification) and carboxylation (succinic anhydride modification).


Product Features

 

1. Chromatographic packing: Due to its good monodispersity and chemical stability, it can be used as a stationary phase packing in high-performance liquid chromatography (HPLC) and gas chromatography (GC).

2. Optical materials: used for preparing optical coatings, anti reflective films, etc., to improve the performance of optical devices.

3. Coatings and Coatings: Enhance the wear resistance, corrosion resistance, and hardness of coatings and coatings.

4. Biomedical field: Surface modification of specific antibodies or ligands for the isolation of specific types of cells. It can also be combined with fluorescent dyes or quantum dots for imaging of cells and tissues.


Related Information

Please e-mail for the detailed characterization data.

E-mail:[email protected]

 

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SKU: 99177061314

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Project Management Guy
Bozeman, US
★★★★★ 5
This has been handy
Format: Paperback
I am a new Nurse Practitioner working in an urgent care, often on my own. This has been an excellent resource. Who knew someone with a dog bite on their tongue would come in.
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Reviewed in the United States on December 4, 2023
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Conant 15
Massapequa, US
★★★★★ 5
Great book
Format: Paperback
I worked in a setting where I was the only nurse for hundreds of inmates in a Max prison. I used this book to assist me in providing care to patients with their emergencies. It helped me decide how to handle situations where I had to intelligently explain a medical issue to a on call MD or chart in a correct manner. This was my own personal book and glad to have it. I believe I initially found the title from a ER MD who recommended it. This is the updated copy, I gave my old copy to a non medical neighbor who found it useful.
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Reviewed in the United States on June 11, 2022
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Insomnia
Draper, US
★★★★★ 5
Excellent
Format: Paperback
This book is a must have for ER or urgent care. I work in an emergency medicine and can treat septic shock in my sleep but there all kinds of things not that serious that still come in. Some excellent procedural tips. Have given copies to students.
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Reviewed in the United States on July 22, 2022
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anca n.
Pawtucket, US
★★★★★ 5
PA working in Immediate Care
Format: Paperback
I'm a PA and work in Immediate care, this is a great reference book for procedures! Especially those that you don't do daily and need a refresher on before proceeding. I would highly recommend - it is well written, thorough, and covers procedural skills as well as treatments and different options to consider.
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Reviewed in the United States on September 28, 2021
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Theodore Zachariades
Lowell, US
★★★★★ 5
Nancy Pearcey finds true toxicity in the war on men!
Format: Hardcover
Nancy Pearcey has done it again. This work will prove to be a harbinger for a re-evaluation of the war on masculinity current in the Western world. Many are joining the bandwagon and spouting the mantras of "toxic masculinity." Particularly, that breed of “manhood,’ which is perceived to have its origins in the Church, is quite repugnant. Pearcey turns the tables on these folks to show that toxicity is, in reality, their own atmosphere of existence. With the use of widespread research and surprising statistics, Nancy Pearcey has provided in this volume a veritable course in gender issues. The work includes history, cultural evaluation, biblical insight, philosophical sophistication, and balanced classical apologetics. Far from being a partisan theological tirade, the book will bring needed clarity to people on various points on the spectrum. At the core of her thesis is distinguishing the authentic manly characteristics that throughout history have been applauded and found so necessary for the flourishing of Western civilization in contrast to the bravado and supposed "real man" macho type that is the stereotypical target of the so-called feminists. Here, in particular, Pearcey uncovers acute analysis and recorded available statistics for any that would do the spadework. For example, from the research of one study, entitled 'The Pentecostal Gender Paradox,' she shows "that evangelical forms of Christianity benefit women by 'morally restraining the traditional autonomy of the male and the selfish or irresponsible exercise of male power' " In another study, published in the New York Times, it was concluded that "the happiest of all wives in America are religious conservatives . . . Fully seventy percent of wives who hold conservative gender values and attend religious services regularly with their husbands have high quality marriages." Pearcey is so enthralled, she says, "Did you catch that? Let me repeat it . . ." In addition, the satisfaction that women in this demographic have extends to the bedroom as well. Due to these widespread findings, Pearcey says, citing Brad Wilcox, "Academics need to cast aside their prejudices about religious conservatives and evangelicals in particular." A telling conclusion! In this reviewer's opinion, the chapter on the Pioneers and Puritans was outstanding. No spoiler alert. Get the book and read it for yourself. This chapter alone is worth the cost of purchase. The discussion on the industrial age and the transition for men to become absentee fathers was a helpful reminder that political and economic emancipation brings with it some unexpected consequences. The Father, as the provider, now becomes engaged in a manner of individual competition for prestige and advancement. No longer surrounded by loved ones in a struggle to eke out a living in an agrarian world, the industrialization process reduced men to cogs in a machine. Profit for the owners of the means of wealth production, the proverbial bottom line, now was all that really mattered. As Pearcey elegantly puts it, "The new workplace fostered an economic philosophy of individualism, where workers were treated as so many interchangeable units to be plugged into the production process, each struggling to advance himself at the expense of others." Most importantly, Pearcey catches that underlying and emerging contrast in the following comment, ". . . the conflict between work and family did not involve just juggling time demands but also transitioning between two contrasting sets of character traits." Here also, Pearcey draws on her prior book Total Truth to examine the resultant separation of spheres where men began functioning differently in actual practice depending on what and where they were acting out their divided lives. There is so much ground covered in this fine work. I cannot recommend it highly enough. No doubt, as this reviewer found the occasional issue that would be worded differently or even contrastingly, the bulk of the book is endorsed wholeheartedly. Thank you, Nancy Pearcey for another book that will become a classic. I had received access to a pre-published edition of the book. I was under no compulsion to give a favorable assessment. Theodore Zachariades.
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Reviewed in the United States on June 27, 2023

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