Search Within
Applied Filters:
Showing 1-30 of 394 results for "


" within Papers
Zhaoqiang Ding et al.
Materials science & engineering. C, Materials for biological applications, 48, 469-479 (2015-01-13)
A novel molecularly imprinted optosensing material based on multi-walled carbon nanotube-quantum dots (MWCNT-QDs) has been designed and synthesized for its high selectivity, sensitivity and specificity in the recognition of a target protein bovine serum albumin (BSA). Molecularly imprinted polymer coated
Byeongtaek Oh et al.
Molecular pharmaceutics, 12(9), 3226-3236 (2015-07-15)
This study was aimed to develop and evaluate a smart nanosystem that targeted photothermal ablation of inflammatory macrophages in atherosclerotic plaque. Mannosylated-reduced graphene oxide (Man-rGO) was synthesized using three step procedures: (1) preparation of ox-GOs, (2) microwave-assisted synthesis of PEI-rGOs
Yanfang Shen et al.
Journal of drug targeting, 23(6), 568-576 (2015-03-05)
Multifunctional gold nanospheres (MGNs)-loaded with docetaxel (MGN@DTX) were prepared and evaluated for therapeutic efficacy in nude mice bearing human prostate cancer xenografts. MGNs were prepared from PEGylated hollow gold nanospheres (HGNs) coated with folic acid and DTPTT chelate. Then, the
Davide Carta et al.
ChemMedChem, 10(11), 1846-1862 (2015-10-09)
A small library of 3-ethylpyrrolo[3,2-f]quinoline derivatives was synthesized to identify a novel class of dyes for use in biological studies. According to the spectroscopic analyses performed to evaluate the fluorimetric parameters of quantum yield and brightness, 7-methyl- and 6,7-dimethylpyrroloquinolin(9)one derivatives
Priyanka Dutta et al.
ACS applied materials & interfaces, 7(44), 24778-24790 (2015-10-21)
This work reports the development of highly fluorescent materials for the selective and efficient detection of picric acid explosive in the nanomolar range by fluorescence quenching phenomenon. Poly(vinyl alcohol) grafted polyaniline (PPA) and its nanocomposites with 2-mercaptosuccinic acid (MSA)-capped CdTe
Longyan Chen et al.
Journal of nanobiotechnology, 13, 45-45 (2015-06-26)
Rapid detection and discrimination of bacteria for biomedical and food safety applications remain a considerable challenge. We report a label-free near infrared surface-enhanced Raman scattering (NIR-SERS) method for the discrimination of pathogenic bacteria from drinking water. The approach relies on
Dallas L Matz et al.
Dalton transactions (Cambridge, England : 2003), 44(27), 12210-12224 (2015-04-16)
Synthetic details for 4,11-dimethyl-1,4,8,11-tetraazabicyclo[6.5.2]pentadecane, the dimethyl ethylene cross-bridged homocyclen ligand are presented for the first time. Its novel Mn(2+), Fe(2+), Mn(3+), and Fe(3+) complexes have been synthesized and characterized. X-ray crystal structures were obtained for both manganese complexes, along with
Jiadi Sun et al.
Biosensors & bioelectronics, 70, 239-245 (2015-04-02)
A novel DNA sensor for the detection of the Escherichia coli O157:H7 (E. coli O157:H7) eaeA gene was constructed using surface enhanced fluorescence (SEF). The spacing distance dependence nature of Au@Ag nanorods surface enhanced fluorescence was investigated when the cy3-labled
S R Kavitha et al.
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy, 133, 472-479 (2014-06-29)
Silver nanoparticles (Ag NPs) of different sizes from 7nm to 22nm have been prepared by simple Dirk and Charles chemical method and characterized using UV-vis spectroscopy and high resolution transmission electron microscopy (HRTEM). Fluorescence quenching of 1,4-dimethoxy-2,3-dimethylanthracene-9,10-dione (DMDMAD) by silver
Nedjma Melais et al.
Bioprocess and biosystems engineering, 38(8), 1579-1588 (2015-05-11)
This study reports the lipase-catalyzed resolution of heteroaromatic secondary alcohols by succinic anhydride under different activation conditions by convenient procedure with succinic anhydride. The effects of succinic anhydride and the nature of the heteroatom are discussed in standard conditions in
Jung-Hoon Lee et al.
Nature communications, 6, 7571-7571 (2015-06-27)
Much of the interest in noble metal nanoparticles is due to their plasmonic resonance responses and local field enhancement, both of which can be tuned through the size and shape of the particles. However, both properties suffer from the loss
Yalçın Çöpür et al.
Bioresource technology, 129, 182-190 (2012-12-19)
This study examined the suitability of husk waste for bioethanol production and compared pretreatment techniques with regard to their efficiencies. Results showed that 4% NaBH4 (90 min) delignified the highest amount of lignin (49.1%) from the structure. The highest xylan
Olga A Guselnikova et al.
Beilstein journal of nanotechnology, 6, 1192-1198 (2015-07-15)
A novel approach for the in situ synthesis of zerovalent aryl-coated iron nanoparticles (NPs) based on diazonium salt chemistry is proposed. Surface-modified zerovalent iron NPs (ZVI NPs) were prepared by simple chemical reduction of iron(III) chloride aqueous solution followed by
Yiye Li et al.
ACS nano, 8(11), 11529-11542 (2014-11-07)
Near-infrared plasmonic nanoparticles demonstrate great potential in disease theranostic applications. Herein a nanoplatform, composed of mesoporous silica-coated gold nanorods (AuNRs), is tailor-designed to optimize the photodynamic therapy (PDT) for tumor based on the plasmonic effect. The surface plasmon resonance of
M S Matias et al.
Journal of environmental management, 159, 147-157 (2015-06-13)
Nanoscience is a field that has stood out in recent years. The accurate long-term health and environmental risks associated with these emerging materials are unknown. Therefore, this work investigated how to eliminate silver nanoparticles (AgNPs) from synthetic effluents by electrocoagulation
Somayeh Mohammadi et al.
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy, 148, 405-411 (2015-04-29)
A new selective, simple, fast and sensitive method is developed for sensing assay of Bi (III) using pyridine-2,6-dicarboxylic acid or dipicolinic acid (DPA) modified silver nanoparticles (DPA-AgNPs). Silver nanoparticles (AgNPs) were synthesized by reducing silver nitrate (AgNO3) with sodium borohydride
Yu Zhang et al.
Nanoscale, 7(32), 13775-13783 (2015-07-30)
Highly stable monodispersed nano Cu hydrosols were facilely prepared by an aqueous chemical reduction method through selecting copper hydroxide (Cu(OH)2) as the copper precursor, poly(acrylic acid) (PAA) and ethanol amine (EA) as the complexing agents, and hydrazine hydrate as the
Connor A Wathen et al.
Contrast media & molecular imaging, 10(3), 188-193 (2014-08-30)
Gold nanomaterials (AuNPs) represent a promising new class of contrast agents for X-ray computed tomographic (CT) imaging in both research and clinical settings. These materials exhibit superior X-ray absorption properties compared with other iodinated agents, and thus require lower injection
Chieh Mei et al.
Biotechnology and bioengineering, 116(5), 1190-1200 (2019-01-14)
Microenvironmental factors including physical and chemical cues can regulate stem cells as well as terminally differentiated cells to modulate their biological function and differentiation. However, one of the physical cues, the substrate's dimensionality, has not been studied extensively. In this
Anna Huk et al.
Particle and fibre toxicology, 12, 25-25 (2015-07-25)
The main goal of this research was to study the interactions of a fully characterized set of silver nanomaterials (Ag ENMs) with cells in vitro, according to the standards of Good Laboratory Practices (GLP), to assure the quality of nanotoxicology
Hayden T Ravert et al.
Journal of labelled compounds & radiopharmaceuticals, 57(12), 695-698 (2014-10-21)
The 4-[(18)F]-fluorobenzyltriphenylphosphonium cation was synthesized by a series of microwave reactions from no carrier added [(18)F]-fluoride. The microwave procedure reduced the quantity of reagents used and synthesis time when compared with the original synthesis. In addition, problematic solid phase extraction
Khashayar Ghandi et al.
Nanoscale, 7(27), 11545-11551 (2015-06-04)
Ultra-fast pre-solvated electron capture has been observed for aqueous solutions of room-temperature ionic liquid (RTIL) surface-stabilized gold nanoparticles (AuNPs; ∼9 nm). The extraordinarily large inverse temperature dependent rate constants (k(e)∼ 5 × 10(14) M(-1) s(-1)) measured for the capture of
Bhanu Priya Viraka Nellore et al.
Faraday discussions, 175, 257-271 (2014-10-04)
Cancer is a life-threatening disease, which is rapidly becoming a global pandemic. Driven by this need, here we report for the first time an aptamer-conjugated theranostic magnetic hybrid graphene oxide-based assay for highly sensitive tumor cell detection from blood samples
Lei Wu et al.
Biosensors & bioelectronics, 62, 13-18 (2014-06-29)
As thiocyanate (SCN(-)) acts as an important biomarker in human health assessment, there remains an urgent need to realize rapid and reproducible analysis of SCN(-) in body fluids. Here, a droplet microfluidic device has been designed and fabricated for SCN(-)
Igor W K Ouédraogo et al.
Journal of water and health, 13(3), 726-736 (2015-09-01)
Because of the recognition that arsenic (As) at low concentrations in drinking water causes severe health effects, the technologies of As removal have become increasingly important. In this study, a simplified and effective method was used to immobilize iron oxyhydroxide
Olga Bibikova et al.
Journal of biomedical optics, 20(7), 76017-76017 (2015-08-01)
We synthesized and characterized gold nanostars and their silica-coated derivatives with 7- to 50-nm shell thicknesses as contrast agents for optical imaging. The scattering and absorption coefficients of the nanoparticles (NPs) were estimated by means of collimated transmittance and diffuse
Adriano Ambrosi et al.
Chemphyschem : a European journal of chemical physics and physical chemistry, 16(2), 331-334 (2014-11-19)
Graphene-related materials contain chemically bonded oxygen atoms in the form of epoxy, hydroxy, carboxy, and carbonyl groups. It is important to determine the quantity of oxygen atoms and to understand their position on the graphene sheet. However, visualization of these
Jiwoong Kwon et al.
Scientific reports, 5, 17804-17804 (2015-12-08)
Far-field optical nanoscopy has been widely used to image small objects with sub-diffraction-limit spatial resolution. Particularly, reversible saturable optical fluorescence transition (RESOLFT) nanoscopy with photoswitchable fluorescent proteins is a powerful method for super-resolution imaging of living cells with low light
Verónica López Durán et al.
Carbohydrate polymers, 182, 1-7 (2017-12-28)
Despite the different chemical approaches used earlier to increase the ductility of fibre-based materials, it has not been possible to link the chemical modification to their mechanical performance. In this study, cellulose fibres have been modified by periodate oxidation, alone
I H Hiemstra et al.
Molecular immunology, 60(1), 1-7 (2014-04-08)
The administration of helminths is considered a promising strategy for the treatment of autoimmune diseases due to their immunomodulatory properties. Currently, the application of the helminth Trichuris suis as a treatment for Crohn's disease is being studied in large multi-center
Page 1 of 14
Page 1 of 14