نتایج جستجو برای: monodispersity

تعداد نتایج: 252  

2011
Mahendra Rai Alka Yadav Mahendra K Rai

Fungi consists of varied group of heterotrophs, which due to their unique properties show applications in different fields. Nanotechnology covers diverse fields of science and technology, and the fabrication of nanoparticles using the biological route is the need of the day. The introduction of biological agents for the synthesis of nanoparticles has encouraged the researchers to search for the...

2017
Jiao-xia Zhang Si Liu Chao Yan Xiao-jing Wang Lei Wang Ya-ming Yu Shi-yun Li

Considering the excellent solubility of pyrrolidone ring organic compounds, the synthesized N(trimethoxysilyl) propyl-N-methyl-2-pyrrolidone chlorides was tethered onto titanium dioxide (TiO2) nanoparticles to improve dispersion of TiO2, and then polyethylene oxide (PEO) oligomer through ion exchange embraced the tethered TiO2 to obtain a novel self-suspended hairy TiO2 nanomaterials without an...

Journal: :Faraday discussions 2008
E Pérez-Tijerina M Gracia Pinilla S Mejía-Rosales U Ortiz-Méndez A Torres M José-Yacamán

Gold/Palladium nanoparticles were fabricated by inert-gas condensation on a sputtering reactor. With this method, by controlling both the atmosphere on the condensation chamber and the magnetron power, it was possible to produce nanoparticles with a high degree of monodispersity in size. The structure and size of the Au/Pd nanoparticles were determined by mass spectroscopy, and confirmed by ato...

2008
Omar Fabian Caroline Ross Jin Young Kim

My thesis explored three different synthesis routes toward obtaining monodisperse clutches of well-ordered nanoparticles stabilized by various alkanethiols. The first two synthesis methods were based on a two-phase system employing first tetraoctylammonium bromide (TOAB) as a phase transfer catalyst and then didodecyldimethylammonium bromide (DDAB). Though these methods approximated what could ...

Journal: :Nanomedicine : nanotechnology, biology, and medicine 2012
Justin F Galloway Alan Winter Kwan Hyi Lee Jea Ho Park Charlene M Dvoracek Peter Devreotes Peter C Searson

UNLABELLED The water solubilization of nanoparticles is key for many applications in biomedicine. Despite the importance of surface functionalization, progress has been largely empirical and very few systematic studies have been performed. Here we report on the water solubilization of quantum dots using lipid encapsulation. We systematically evaluate the monodispersity, zeta potential, stabilit...

Journal: :Acta biochimica et biophysica Sinica 2007
Cong Ma Hai Hou Wei Tian Tao Xu

Munc13-1 is an essential component of synaptic vesicle releasing machinery. Three rat Munc13-1 constructs were rationally designed based on homology and function, overexpressed in Escherichia coli, and purified to homogeneity with a final yield higher than 2 microg/ml of cell culture. The purified Munc13-1 recombinant proteins had distinct oligomeric states, monodispersity and homogeneity prope...

Journal: :Langmuir : the ACS journal of surfaces and colloids 2007
Dhananjay Dendukuri T Alan Hatton Patrick S Doyle

We report the synthesis and self-assembly of amphiphilic, nonspherical, polymeric microparticles. Wedge-shaped particles bearing segregated hydrophilic and hydrophobic sections were synthesized in a microfludic channel by polymerizing across laminar coflowing streams of hydrophilic and hydrophobic polymers using continuous flow lithography (CFL). Particle monodispersity was characterized by mea...

Journal: :Protein science : a publication of the Protein Society 2013
Wei He Juntao Luo Feliza Bourguet Li Xing Sun K Yi Tingjuan Gao Craig Blanchette Paul T Henderson Edward Kuhn Mike Malfatti William J Murphy R Holland Cheng Kit S Lam Matthew A Coleman

Nanolipoprotein particles (NLPs) are nanometer-scale discoidal particles that feature a phospholipid bilayer confined within an apolipoprotein "scaffold," which are useful for solubilizing hydrophobic molecules such as drugs and membrane proteins. NLPs are synthesized either by mixing the purified apolipoprotein with phospholipids and other cofactors or by cell-free protein synthesis followed b...

Journal: :Characterization and application of nanomaterials 2022

This work presents the evaluation of iron oxide nanoparticles obtained from aqueous extract Eucalyptus grandis. Twenty-three experiments were carried out where synthesis was performed by using together with salts (II) chloride tetrahydrate and (III) hexahydrate. A characterization IR, TEM BET, bands presented at 3,440.77, 1,559.26 445.31 cm−1, indicating presence nanoparticles. relatively high ...

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