Log in

Relevant bibliographies by topics / Gold colloid / Journal articles

To see the other types of publications on this topic, follow the link: Gold colloid.

Journal articles on the topic 'Gold colloid'

Author: Grafiati

Published: 4 June 2021

Last updated: 27 April 2022

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 journal articles for your research on the topic 'Gold colloid.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse journal articles on a wide variety of disciplines and organise your bibliography correctly.

1

Yokoyama, Kazushige, Kieran Brown, Peter Shevlin, et al. "Examination of Adsorption Orientation of Amyloidogenic Peptides Over Nano-Gold Colloidal Particle Surfaces." International Journal of Molecular Sciences 20, no. 21 (2019): 5354. http://dx.doi.org/10.3390/ijms20215354.

Full text

Abstract:

The adsorption of amyloidogenic peptides, amyloid beta 1–40 (Aβ1–40), alpha-synuclein (α-syn), and beta 2 microglobulin (β2m), was attempted over the surface of nano-gold colloidal particles, ranging from d = 10 to 100 nm in diameter (d). The spectroscopic inspection between pH 2 and pH 12 successfully extracted the critical pH point (pHo) at which the color change of the amyloidogenic peptide-coated nano-gold colloids occurred due to aggregation of the nano-gold colloids. The change in surface property caused by the degree of peptide coverage was hypothesized to reflect the ΔpHo, which is the

APA, Harvard, Vancouver, ISO, and other styles

2

Yaacob, Khatijah A., and Gooi Wyn Gyn. "Formation of Gold Nanoparticles Film on Silicon Wafer by Self-Assembled Method." Advanced Materials Research 795 (September 2013): 726–31. http://dx.doi.org/10.4028/www.scientific.net/amr.795.726.

Full text

Abstract:

The gold nanoparticles film has been successfully formed on the silicon wafer by self-assembled method. The gold colliods were prepared by chemical reduction method where sodium citrate (act as the reducing, capping and stabilizing agent) were added into the boiling 50ml of 0.01% tetrachloroauria acid (HAuCl4) solution in reflux system. Different particle size of gold colloids (AuNPs_1 and AuNPs_2) were produced by altering the amount of sodium citrate. The as-prepared gold colloids were characterized by UV - Vis spectrometry, Malvern particle size analyzer, zeta potential and XRD. Self-assemb

APA, Harvard, Vancouver, ISO, and other styles

3

Zhou, Xiang, Dongbao Yao, Wenqiang Hua, et al. "Programming colloidal bonding using DNA strand-displacement circuitry." Proceedings of the National Academy of Sciences 117, no. 11 (2020): 5617–23. http://dx.doi.org/10.1073/pnas.1917941117.

Full text

Abstract:

As a strategy for regulating entropy, thermal annealing is a commonly adopted approach for controlling dynamic pathways in colloid assembly. By coupling DNA strand-displacement circuits with DNA-functionalized colloid assembly, we developed an enthalpy-mediated strategy for achieving the same goal while working at a constant temperature. Using this tractable approach allows colloidal bonding to be programmed for synchronization with colloid assembly, thereby realizing the optimal programmability of DNA-functionalized colloids. We applied this strategy to conditionally activate colloid assembly

APA, Harvard, Vancouver, ISO, and other styles

4

Ghitescu, L., and M. Bendayan. "Immunolabeling efficiency of protein A-gold complexes." Journal of Histochemistry & Cytochemistry 38, no. 11 (1990): 1523–30. http://dx.doi.org/10.1177/38.11.2212613.

Full text

Abstract:

A systematic study of the adsorption of protein A on colloidal gold particles varying in size from 5-16 nm was performed at different protein concentrations. The number of protein A molecules bound per colloidal particle was evaluated and the Scatchard analysis of the adsorption parameters was applied for each size of the colloid. The binding of protein A to the colloidal gold surface exhibited the same affinity pattern for all of the particle sizes. At low concentrations of stabilizing protein, adsorption took place with high affinity (Kd 1.96-3.3 nM) and the maximum number of protein A molec

APA, Harvard, Vancouver, ISO, and other styles

5

Schmid, Günter, Andreas Lehnert, Ulrich Kreibig, Zbignew Adamczyk, and Peter Belouschek. "Synthese und elektronenmikroskopische Untersuchung kontrolliert gewachsener, ligandstabilisierter Goldkolloide sowie theoretische Überlegungen zur Oberflächenbelegung durch Kolloide / Synthesis and Electron Microscopic Investigation of Controlled Grown, Ligand Stabilized Gold Colloids and Theoretical Considerations on the Covering of Surfaces by Colloids." Zeitschrift für Naturforschung B 45, no. 7 (1990): 989–94. http://dx.doi.org/10.1515/znb-1990-0713.

Full text

Abstract:

18 nm Gold colloids are used as seeds for a controlled growth of 36 nm colloids which are then stabilized by P(m-C6H4SO3Na)3. These colloids can be isolated as golden leaflets and are readily soluble in water in virtually any concentration. Electron microscopic investigations prove a very small particle size distribution. X-ray powder diffraction and molecular weight determinations support the results of the electron microscopic investigations. The distance between the colloidal particles in two-dimensional layers corresponds to double-layers of phosphane ligands around each colloid, twice 1.2

APA, Harvard, Vancouver, ISO, and other styles

6

Nayak, Rekha, Jane Galsworthy, Peter Dobson, and John Hutchison. "Synthesis of gold-cadmium selenide co-colloids." Journal of Materials Research 13, no. 4 (1998): 905–8. http://dx.doi.org/10.1557/jmr.1998.0123.

Full text

Abstract:

Semiconductor-metal co-colloids of CdSey/Au have been prepared by various synthetic pathways. Their microstructure, including that of Au–CdSe(TOPO) co-colloid in a core-shell structure, has been examined by high resolution transmission electron microscopy (HRTEM) and found to be well defined within the 10 nm size range. The optical absorption spectra of the colloids and of various synthesis stages have been obtained.

APA, Harvard, Vancouver, ISO, and other styles

7

Valverde-Alva, Miguel A., Jhenry F. Agreda-Delgado, Juan A. Vega-González, et al. "Effect of the magnetic field on the synthesis of colloidal silver and gold nanoparticles by laser ablation in bidestilated water." MOMENTO, no. 63 (July 9, 2021): 1–11. http://dx.doi.org/10.15446/mo.n63.91515.

Full text

Abstract:

The effect of magnetic field of 0.3 T on the concentration, distribution of sizes in suspension and zeta potential of colloidal gold and colloidal silver nanoparticles, obtained by considering the pulsed laser ablation in double distilled water was studied. The magnetic field was transverse to the direction of incidence of the laser radiation and parallel to the surface of a submerged target. An Nd: YAG laser was used (1064 nm in wavelength, 10 ns in duration, repetition rate of 10 Hz and 37 mJ of energy) to ablate targets. The colloids were characterized by inductively coupled plasma optical

APA, Harvard, Vancouver, ISO, and other styles

8

Shipway, A. N., M. Lahav, and I. Willner. "Nanostructured Gold Colloid Electrodes." Advanced Materials 12, no. 13 (2000): 993–98. http://dx.doi.org/10.1002/1521-4095(200006)12:13<993::aid-adma993>3.0.co;2-3.

Full text

APA, Harvard, Vancouver, ISO, and other styles

9

SCHOENLY, PAUL A., and JAMES A. SAUNDERS. "NATURAL GOLD DENDRITES FROM HYDROTHERMAL Au-Ag DEPOSITS: CHARACTERISTICS AND COMPUTER SIMULATIONS." Fractals 01, no. 03 (1993): 585–93. http://dx.doi.org/10.1142/s0218348x93000617.

Full text

Abstract:

Epithermal vein gold deposits in the western United States locally contain bonanza zones with extraordinary concentrations of gold in banded ores consisting of alternating gold-rich and barren silica bands. Gold-rich bands commonly consist of coalescing or isolated gold dendrites, which occur in a matrix of variably preserved colloidal silica. Most dendrites appear to have grown outward from near-vertical vein walls and have a rough radial symmetry. SEM images of dendrite surfaces suggest that they formed by the aggregation of spherical particles in the 10–100 nm range. Fractal dimension (Df)

APA, Harvard, Vancouver, ISO, and other styles

10

Yao, Peng Quan, Lin Hua Zhu, Tian Si, and Jin Yang. "Intercalation of Gold Nanoparticles into Na-Montmorillonite." Advanced Materials Research 716 (July 2013): 360–63. http://dx.doi.org/10.4028/www.scientific.net/amr.716.360.

Full text

Abstract:

Several type of gold precursors including pre-synthesized Au (en)2Cl3and gold colloid were tried to intercalate into the layer space of Na-Montmorillonite (Na-MMT). In the preparation, DDA and PAA were employed to cap the pre-synthesized gold colloidal particles and then intercalated into Na-MMT, and the Au (en)2Cl3was directly intercalated to Na-MMT through cation exchange. X-ray diffraction (XRD), fluorescence analysis (XRF) and transmission electron microscopy (TEM) were used to characterize the prepared samples. The results showed that the gold colloid modified by dodecylamine (DDA) and po

APA, Harvard, Vancouver, ISO, and other styles

11

Bovin, Jan-Olov. "The temperature stability of ligand stabilized gold and bimetallic colloids." Proceedings, annual meeting, Electron Microscopy Society of America 50, no. 1 (1992): 296–97. http://dx.doi.org/10.1017/s0424820100121880.

Full text

Abstract:

Preparation and characterization of new monodispersed clusters and colloids of different metals are important for use in several applications like catalysis, microelectronics and sintering. The atomic structure of ligand stabilized, 18 nm, gold colloid is important, since they can serve as the core in preparation of bimetallic systems. The recent developments in preparative cluster chemistry have made it possible to make 35 nm bimetallic layered colloids of gold-platinum and gold-palladium. If the colloids should be useful as catalysts, it is important to establish their thermal stability and

APA, Harvard, Vancouver, ISO, and other styles

12

Małaczewska, J. "The in vitro effect of commercially available noble metal nanocolloids on the splenocyte proliferative response and cytokine production in mice." Polish Journal of Veterinary Sciences 17, no. 1 (2014): 37–45. http://dx.doi.org/10.2478/pjvs-2014-0005.

Full text

Abstract:

Abstract Noble metal nanoparticles, currently among the most popular types of nanomaterials, are capable of penetrating through biological barriers once they enter a living organism. There, they can permeate into organs possessing the reticuloendothelial system, such as the spleen. The objective of this study was to determine the effect of commercial nanocolloids of noble metals (silver, gold and copper), recommended by the manufacturer as dietary supplements, on the in vitro viability, proliferative activity and production of cytokines (IL-1β, IL-2, IL-6, IL- 10 and TNF-α) by mouse splenocyte

APA, Harvard, Vancouver, ISO, and other styles

13

Angel, S. M., L. F. Katz, D. D. Archibald, and D. E. Honigs. "Near-Infrared Surface-Enhanced Raman Spectroscopy. Part II: Copper and Gold Colloids." Applied Spectroscopy 43, no. 3 (1989): 367–72. http://dx.doi.org/10.1366/0003702894202940.

Full text

Abstract:

Near-infrared (NIR) surface-enhanced Raman spectra (SERS) on copper and gold metal colloids were obtained with a Fourier transform Raman spectrometer using a Nd:YAG laser (1.064 μm) for excitation. Enhanced spectra were observed for pyridine and 3-chloropyridine (CP) on copper colloids and for tris(orthophenanthroline)ruthenium(II), Ru(o-phen)32+, on copper and gold colloids. The copper-colloid surface-enhanced Raman spectra of pyridine and CP were compared with spectra measured for these molecules on copper electrodes. NIR-SERS enhancements on the metal colloids were at least as large as for

APA, Harvard, Vancouver, ISO, and other styles

14

Adlim, Adlim, and Mohamad Abu Bakar. "PREPARATION OF CHITOSAN-GOLD NANOPARTICLES: PART 2. THE ROLE OF CHITOSAN." Indonesian Journal of Chemistry 8, no. 3 (2010): 320–26. http://dx.doi.org/10.22146/ijc.21585.

Full text

Abstract:

Colloidal gold nanoparticles prepared by employing chitosan as the stabilizer in solvent of methanol-acetic acid solution were stable for months without precipitation. The mole ratio of chitosan-gold ions of 5:1 - 30:1 gave dispersed and fine gold particles in range of 9.4-10.4 nm. Gold reduction in chitosan matrix was faster at higher chitosan concentration, and molar ratio of chi : Au, from 5:1 to 40:1. Higher acidity of acetic acid (pH 2-6) led to faster reduction of gold ions. The intensity of gold metal colloid plasmon band increased at higher concentration of acetic acid. Chitosan functi

APA, Harvard, Vancouver, ISO, and other styles

15

Stiufiuc, Rares, Cristian Iacovita, Raul Nicoara, et al. "One-Step Synthesis of PEGylated Gold Nanoparticles with Tunable Surface Charge." Journal of Nanomaterials 2013 (2013): 1–7. http://dx.doi.org/10.1155/2013/146031.

Full text

Abstract:

The present work reports a rapid, simple and efficient one-step synthesis and detailed characterisation of stable aqueous colloids of gold nanoparticles (AuNPs) coated with unmodified poly(ethylene)glycol (PEG) molecules of different molecular weights and surface charges. By mixing and heating aqueous solutions of PEG with variable molecular chain and gold(III) chloride hydrate (HAuCl4) in the presence of NaOH, we have successfully produced uniform colloidal 5 nm PEG coated AuNPs of spherical shape with tunable surface charge and an average diameter of 30 nm within a few minutes. It has been f

APA, Harvard, Vancouver, ISO, and other styles

16

Nagasaki, Yukio, Kenji Yoshinaga, Koshiro Kurokawa, and Michihiro Iijima. "Thermal- and dispersion-stable lipase-installed gold colloid: PEGylation of enzyme-installed gold colloid." Colloid and Polymer Science 285, no. 5 (2006): 563–67. http://dx.doi.org/10.1007/s00396-006-1575-7.

Full text

APA, Harvard, Vancouver, ISO, and other styles

17

Wongrat, E., P. Pimpang, N. Mangkorntong, and Supab Choopun. "Ethanol Sensing Characteristics of ZnO Nanostructures Impregnated by Gold Colloid." Advanced Materials Research 55-57 (August 2008): 293–96. http://dx.doi.org/10.4028/www.scientific.net/amr.55-57.293.

Full text

Abstract:

ZnO nanostructures were synthesized by thermal oxidation reaction from zinc powder and then impregnated by gold colloid. The gold colloid was prepared by chemical reduction technique and had red color. The heating temperature and sintering time of thermal oxidation were 700 °C and 24 hours, respectively under oxygen atmosphere. The morphology of ZnO nanostructures and ZnO impregnated gold colloid were studied by field emission scanning electron microscope (FE-SEM). The diameter and length of pure ZnO and ZnO impregnated gold colloid were about the same value and were in the range of 100-500 nm

APA, Harvard, Vancouver, ISO, and other styles

18

Vargas-Baca, Ignacio, Andrew P. Brown, Mark P. Andrews, et al. "Linear and nonlinear optical responses of a dye anchored to gold nanoparticles dispersed in liquid and polymeric matrixes." Canadian Journal of Chemistry 80, no. 11 (2002): 1625–33. http://dx.doi.org/10.1139/v02-147.

Full text

Abstract:

The compound [4-CH3C6H4-SS-CH2CH2-N(CH3)C6H4C(C6H4N(CH3)2)-4)2]Cl (1a) consists of the triarylmethyl chromophore of crystal violet appended to an organic disulfide, to entail direct attachment of this dye to gold surfaces. Addition of 1a to colloidal dispersions of the metal produced a stable dispersion in methanolwater mixtures. Transmission electron microscopy of Freeze-Fracture sections shadowed with carbon and platinum confirmed that the dispersion remains unaggregated. Local-field effects and coupling to the surface plasmon of gold magnified the interaction of the chromophore with optica

APA, Harvard, Vancouver, ISO, and other styles

19

Leunissen, Jan. "A Note on Storing and Testing Gold Conjugates." Microscopy Today 15, no. 1 (2007): 44. http://dx.doi.org/10.1017/s155192950005121x.

Full text

Abstract:

Colloid and adsorption physics are a very complicated business and often have a lot of surprises. In 1991 Kramarcy and Sealock published a paper in JHC Vol. 39, No. 1,pp. 37-39, 1991: “Commercial Preparations of Colloidal Gold-Antibody Complexes Frequently Contain Free Active Antibody”. Their data indicate that proteins adsorbed onto colloidal particles of 5nm and larger can dissociate from the particle surface with time and that, at times even shortly after manufacturing, colloidal gold reagents may contain free binding molecules. This is not necessarily the result of bad manufacturing practi

APA, Harvard, Vancouver, ISO, and other styles

20

Kolosovas-Machuca, Eleazar, Alexander Cuadrado, Hiram Ojeda-Galván, et al. "Detection of Histamine Dihydrochloride at Low Concentrations Using Raman Spectroscopy Enhanced by Gold Nanostars Colloids." Nanomaterials 9, no. 2 (2019): 211. http://dx.doi.org/10.3390/nano9020211.

Full text

Abstract:

In this paper, we report a fast and easy method to detect histamine dihydrochloride using gold nanostars in colloidal aqueous solution as a highly active SERS platform with potential applications in biomedicine and food science. This colloid was characterized with SEM and UV–Vis spectroscopy. Also, numerical calculations were performed to estimate the plasmonic resonance and electric field amplification of the gold nanoparticles to compare the difference between nanospheres and nanostars. Finally, aqueous solutions of histamine dihydrochloride were prepared in a wide range of concentrations an

APA, Harvard, Vancouver, ISO, and other styles

21

Oh, Jin Yong, and M. Saif Islam. "Improving yields in bridging silicon nanowires with rational control of the bridge characteristics." MRS Proceedings 1551 (2013): 111–16. http://dx.doi.org/10.1557/opl.2013.943.

Full text

Abstract:

ABSTRACTWe present a practical technique for fabricating silicon nanowire bridges on pre-patterned Si electrodes arrays. Silicon nanowires, catalyzed by gold nanoparticles, were grown on silicon electrodes from HF treated Au colloid as well as on electrodes treated with poly-L-lysine. Negligible growth was observed on untreated substrates due to poor adhesion of gold nanoparticles to the hydrogen terminated Si surface. In contrast, the treatments significantly increased occurrence of silicon nanowire bridges, which can be attributed to improved deposition of gold nanoparticles on the surface.

APA, Harvard, Vancouver, ISO, and other styles

22

Sarkhosh, Leila, and Nastaran Mansour. "Analysis of Z-scan measurement for large thermal nonlinear refraction in gold nanoparticle colloid." Journal of Nonlinear Optical Physics & Materials 24, no. 02 (2015): 1550014. http://dx.doi.org/10.1142/s0218863515500149.

Full text

Abstract:

In this work, based on nonlocal heat effect and Fresnel diffraction theory, the characteristics of closed Z-scan in materials with a large nonlinear phase shift have been studied and a formula for Z-scan transmittance is derived. Numerical computations show that the shapes of Z-scan curves are greatly affected by the values of thermal nonlinear phase shift. The Z-scan behavior is compared to the conventional thermal Z-scan theories, including the thermal thin lens and aberrant thermal lens model. We have used the Z-scan models to determine the nonlinear refraction of gold nanoparticle (AuNP) d

APA, Harvard, Vancouver, ISO, and other styles

23

Waag, Friedrich, René Streubel, Bilal Gökce, and Stephan Barcikowski. "Synthesis of gold, platinum, and gold-platinum alloy nanoparticle colloids with high-power megahertz-repetition-rate lasers: the importance of the beam guidance method." Applied Nanoscience 11, no. 4 (2021): 1303–12. http://dx.doi.org/10.1007/s13204-021-01693-y.

Full text

Abstract:

AbstractNanoparticles of noble metals and their alloys are of particular interest for biomedicine and catalysis applications. The method of laser ablation of bulk metals in liquids gives facile access to such particles as high-purity colloids and is already used in industrial research. However, the method still lacks sufficient productivity for industrial implementation into series production. The use of innovative laser technology may help to further disseminate this colloid synthesis method in the near future. Ultrashort-pulsed lasers with high powers and megahertz-repetition-rates became av

APA, Harvard, Vancouver, ISO, and other styles

24

He, Jia Hong, Qiang Xu, Zhi Qiang Gao, and Zhong Rong Song. "An Improved Sensitivity Non-Enzymatic Glucose Sensor Based on a Nano-Gold Modified Ag Electrode." Key Engineering Materials 503 (February 2012): 427–31. http://dx.doi.org/10.4028/www.scientific.net/kem.503.427.

Full text

Abstract:

A non-enzymatic glucose sensor based on nano-gold modified Ag electrode was fabricated by two steps. Gold colloid were firstly prepared according to the literature[11] and then a carefully cleaned Ag electrode was dipped into the gold colloid to obtain the non-enzymatic glucose sensor. The structures and morphologies of nano-gold colloid and nano-Au modified electrode were characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM), and UV-Vis absorption spectra. The direct electrocatalytic oxidation of glucose in alkaline medium at this modified electrode has b

APA, Harvard, Vancouver, ISO, and other styles

25

Martínez-Espinosa, Juan Carlos, Teodoro Cordova-Fraga, Aldelmo Reyes-Pablo, and Miguel Vargas-Luna. "Using the Superficial Resonant Peak and PCA for Determining the Gold Nanoparticle Diameter." Advanced Materials Research 818 (September 2013): 111–16. http://dx.doi.org/10.4028/www.scientific.net/amr.818.111.

Full text

Abstract:

A model resulting from principal component analysis and assessment based on surface resonant peak of UV-VIS spectrum to determine the diameter of gold nanoparticles is presented in this paper. Six different diameters were analyzed by using the absorption spectra in the range from 400 nm to 700 nm. Commercial TED-PELLA gold colloid nanoparticles with diameters between 20 nm and 80 nm were measured. Preliminary results suggest the usefulness that this model may have on the characterization of nanostructured materials in colloidal suspension, as well as its application in manufacturing protocols

APA, Harvard, Vancouver, ISO, and other styles

26

O’Reilly, A. J., C. Francis, and N. J. Quitoriano. "Gold nanoparticle deposition on Si by destabilising gold colloid with HF." Journal of Colloid and Interface Science 370, no. 1 (2012): 46–50. http://dx.doi.org/10.1016/j.jcis.2011.12.012.

Full text

APA, Harvard, Vancouver, ISO, and other styles

27

Huo, Yan Shan, Lin Hua Zhu, and Yan Lin Sun. "The Influence of Different Preparation Methods on the Activity for CO Oxidation on the LDHs-Supported Gold Catalysts." Advanced Materials Research 641-642 (January 2013): 169–73. http://dx.doi.org/10.4028/www.scientific.net/amr.641-642.169.

Full text

Abstract:

Au nanoparticles supported on MgAl-LDHs has been synthesized by coprecipitation method, gold colloid routs as well as intercalation and assembly method respectively. The influence of the above different preparation methods on the activity of the gold catalysts for CO oxidation was investigated, and the phase and gold particle size distribution of the catalysts were analyzed by XRD and TEM respectively. The results show that 100% conversion of CO on the fresh prepared gold catalysts synthesized by gold colloid routs and intercalation assembly method can be achieved at room temperature when the

APA, Harvard, Vancouver, ISO, and other styles

28

JIA, TING-JIAN, HONG CHENG, TING-CHAO HE, YU-TING CUI, and CUI-MEI LIU. "Z-SCAN STUDIES OF THE NONLINEAR OPTICAL PROPERTIES OF GOLD AQUEOUS COLLOID PREPARED BY THE CHEMICAL REACTION METHOD." Modern Physics Letters B 25, no. 14 (2011): 1219–27. http://dx.doi.org/10.1142/s021798491102619x.

Full text

Abstract:

Nonlinear optical properties of gold aqueous colloid obtained with chemical reaction method are investigated using Z-scan technique with 38 ps pulses. Experimental results indicate that the colloid exhibits large nonlinear refraction and nonlinear absorption under the excitation of ps 532 nm pulses, while it presents large two photon absorption under ps 1064 nm pulses excitation. Meanwhile, the fluorescence emission spectrum of gold aqueous colloid is recorded under the excitation of 350 nm, and two fluorescence peaks are observed at 454 nm and 704 nm. Moreover, the average fluorescence lifeti

APA, Harvard, Vancouver, ISO, and other styles

29

Lee, Jaewon, Sang Yup Lee, Dong-Kwon Lim, Dong June Ahn, and Seungwoo Lee. "Antifreezing Gold Colloids." Journal of the American Chemical Society 141, no. 47 (2019): 18682–93. http://dx.doi.org/10.1021/jacs.9b05526.

Full text

APA, Harvard, Vancouver, ISO, and other styles

30

Zhou, Jingfang, David A. Beattie, John Ralston, and Rossen Sedev. "Colloid Stability of Thymine-Functionalized Gold Nanoparticles." Langmuir 23, no. 24 (2007): 12096–103. http://dx.doi.org/10.1021/la7019878.

Full text

APA, Harvard, Vancouver, ISO, and other styles

31

Muniz-Miranda, Maurizio, Francesco Muniz-Miranda, and Emilia Giorgetti. "Spectroscopic and Microscopic Analyses of Fe3O4/Au Nanoparticles Obtained by Laser Ablation in Water." Nanomaterials 10, no. 1 (2020): 132. http://dx.doi.org/10.3390/nano10010132.

Full text

Abstract:

Magneto-plasmonic nanoparticles constituted of gold and iron oxide were obtained in an aqueous environment by laser ablation of iron and gold targets in two successive steps. Gold nanoparticles are embedded in a mucilaginous matrix of iron oxide, which was identified as magnetite by both microscopic and spectroscopic analyses. The plasmonic properties of the obtained colloids, as well as their adsorption capability, were tested by surface-enhanced Raman scattering (SERS) spectroscopy using 2,2′-bipyridine as a probe molecule. DFT calculations allowed for obtaining information on the adsorption

APA, Harvard, Vancouver, ISO, and other styles

32

Yu, Shang-Yang, Chang-Hsuan Tu, Jiunn-Woei Liaw, and Mao-Kuen Kuo. "Laser-Induced Plasmonic Nanobubbles and Microbubbles in Gold Nanorod Colloidal Solution." Nanomaterials 12, no. 7 (2022): 1154. http://dx.doi.org/10.3390/nano12071154.

Full text

Abstract:

In this work, we studied the initiated plasmonic nanobubbles and the follow-up microbubble in gold nanorod (GNR) colloidal solution induced by a pulsed laser. Owing to the surface plasmon resonance (SPR)-enhanced photothermal effect of GNR, several nanobubbles are initiated at the beginning of illumination and then to trigger the optical breakdown of water at the focal spot of a laser beam. Consequently, microbubble generation is facilitated; the threshold of pulsed laser energy is significantly reduced for the generation of microbubbles in water with the aid of GNRs. We used a probing He-Ne l

APA, Harvard, Vancouver, ISO, and other styles

33

Rehacek, Vlastimil, and Ivan Hotovy. "Deposition of gold nanoparticles from colloid on TiO2 surface." Journal of Electrical Engineering 68, no. 6 (2017): 487–91. http://dx.doi.org/10.1515/jee-2017-0085.

Full text

Abstract:

AbstractIn this paper, experimental results are presented on the deposition of colloidal gold nanoparticles on the surfaces of TiO2prepared on silicon/silicon dioxide. Important procedures, such as titanium dioxide surface hydrophilization as well as functionalization by an organosilane coupling agent (3-aminopropyl) trimethoxysilane and (3-mercaptopropyl) trimethoxysilane were investigated in order to obtain a metal oxide surface with the most convenient properties for immobilization of gold nanoparticles having a dense and uniform distribution. TiO2nanotips prepared by reactive ion etching o

APA, Harvard, Vancouver, ISO, and other styles

34

Caporali, Stefano, Francesco Muniz-Miranda, Alfonso Pedone, and Maurizio Muniz-Miranda. "SERS, XPS and DFT Study of Xanthine Adsorbed on Citrate-Stabilized Gold Nanoparticles." Sensors 19, no. 12 (2019): 2700. http://dx.doi.org/10.3390/s19122700.

Full text

Abstract:

We have studied the adsorption of xanthine, a nucleobase present in human tissue and fluids that is involved in important metabolic processes, on citrate-reduced gold colloidal nanoparticles by means of surface-enhanced Raman scattering (SERS), absorption, and X-ray photoelectron spectroscopy (XPS) measurements, along with density functional theory (DFT) calculations. The citrate anions stabilize the colloidal suspensions by strongly binding the gold nanoparticles. However, these anions do not impair the adsorption of xanthine on positively-charged active sites present on the metal surface. We

APA, Harvard, Vancouver, ISO, and other styles

35

Garcia, Maurie E., Lane A. Baker, and Richard M. Crooks. "Preparation and Characterization of Dendrimer−Gold Colloid Nanocomposites." Analytical Chemistry 71, no. 1 (1999): 256–58. http://dx.doi.org/10.1021/ac980588g.

Full text

APA, Harvard, Vancouver, ISO, and other styles

36

Yu, Shang-Yung, Shiao-Wen Tsai, Yun-Ju Chen, and Jiunn-Woei Liaw. "Pulsed laser induced microbubble in gold nanorod colloid." Microelectronic Engineering 138 (April 2015): 102–6. http://dx.doi.org/10.1016/j.mee.2015.02.050.

Full text

APA, Harvard, Vancouver, ISO, and other styles

37

Jin, Yongdong, and Noga Friedman. "Surface Plasmon Resonance-Mediated Colloid Gold Monolayer Junctions." Journal of the American Chemical Society 127, no. 34 (2005): 11902–3. http://dx.doi.org/10.1021/ja052896j.

Full text

APA, Harvard, Vancouver, ISO, and other styles

38

Thobhani, Smita, Simon Attree, Robert Boyd, et al. "Bioconjugation and characterisation of gold colloid-labelled proteins." Journal of Immunological Methods 356, no. 1-2 (2010): 60–69. http://dx.doi.org/10.1016/j.jim.2010.02.007.

Full text

APA, Harvard, Vancouver, ISO, and other styles

39

Zhou, Jingfang, John Ralston, Rossen Sedev, and David A. Beattie. "Functionalized gold nanoparticles: Synthesis, structure and colloid stability." Journal of Colloid and Interface Science 331, no. 2 (2009): 251–62. http://dx.doi.org/10.1016/j.jcis.2008.12.002.

Full text

APA, Harvard, Vancouver, ISO, and other styles

40

Xu, Weiqing, Shuping Xu, Xiaohui Ji, et al. "Preparation of gold colloid monolayer by immunological identification." Colloids and Surfaces B: Biointerfaces 40, no. 3-4 (2005): 169–72. http://dx.doi.org/10.1016/j.colsurfb.2004.10.027.

Full text

APA, Harvard, Vancouver, ISO, and other styles

41

Tang, Jun, and Dimitris Tsoukalas. "Fabrication of Nanowires from Gold Nanoparticles by AC Dielectrophoresis and Ink-Jet Delivery." Journal of Nano Research 6 (June 2009): 67–74. http://dx.doi.org/10.4028/www.scientific.net/jnanor.6.67.

Full text

Abstract:

A process for nanowire fabrication from gold nanoparticles is described. In this process, we have combined the ink-jet delivery of a nanoparticle colloid with the dielectrophoresis technique. Ink-jet printing is used for the accurate delivery of gold nanoparticle colloid in an exact position and quantity. The nanoparticles dropped to a two electrode gap are ordered into nanowires by the dielectrophoresis force which is induced by the applied AC voltage. The nanowire structures are characterized by microscopy techniques and I-V measurements.

APA, Harvard, Vancouver, ISO, and other styles

42

Yu, Beibei, Qian Yang, Hongyan Li, et al. "Gold nanospirals on colloidal gold nanoparticles." Journal of Colloid and Interface Science 533 (January 2019): 304–10. http://dx.doi.org/10.1016/j.jcis.2018.08.065.

Full text

APA, Harvard, Vancouver, ISO, and other styles

43

Zhu, Jian, Yun-Qi Yu, Jian-Jun Li, and Jun-Wu Zhao. "Colorimetric detection of lead(ii) ions based on accelerating surface etching of gold nanorods to nanospheres: the effect of sodium thiosulfate." RSC Advances 6, no. 30 (2016): 25611–19. http://dx.doi.org/10.1039/c5ra26560f.

Full text

Abstract:

The lead ion-participated etching of gold nanorods leads to qualitative spectral change from double bands to single band LSPR, which results in a distinct irreversible color change of the gold colloid from blue to red.

APA, Harvard, Vancouver, ISO, and other styles

44

Gong, Xuegang, Xiaoyong Liao, You Li, et al. "Sensitive detection of polycyclic aromatic hydrocarbons with gold colloid coupled chloride ion SERS sensor." Analyst 144, no. 22 (2019): 6698–705. http://dx.doi.org/10.1039/c9an01540j.

Full text

APA, Harvard, Vancouver, ISO, and other styles

45

Jian, Zhu, and Zhu Xiang. "Resonance light scattering properties of Eu3+ in gold colloid." Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy 61, no. 13-14 (2005): 3002–5. http://dx.doi.org/10.1016/j.saa.2004.11.018.

Full text

APA, Harvard, Vancouver, ISO, and other styles

46

Kobayashi, Yoshio, and Akira Tomita. "Preparation of Aqueous Gold Colloid by Vapor Deposition Method." Journal of Colloid and Interface Science 185, no. 1 (1997): 285–86. http://dx.doi.org/10.1006/jcis.1996.4569.

Full text

APA, Harvard, Vancouver, ISO, and other styles

47

Gole, Anand, Chandravanu Dash, Vidya Ramakrishnan, et al. "Pepsin−Gold Colloid Conjugates: Preparation, Characterization, and Enzymatic Activity." Langmuir 17, no. 5 (2001): 1674–79. http://dx.doi.org/10.1021/la001164w.

Full text

APA, Harvard, Vancouver, ISO, and other styles

48

O’Reilly, Andrew, Michael Kuan, and Nathaniel Quitoriano. "pH dependant sticking probability of gold colloid on silicon." Colloids and Surfaces A: Physicochemical and Engineering Aspects 436 (September 2013): 130–32. http://dx.doi.org/10.1016/j.colsurfa.2013.06.025.

Full text

APA, Harvard, Vancouver, ISO, and other styles

49

Maciejewska-Prończuk, J., M. Oćwieja, Z. Adamczyk, and A. Pomorska. "Formation of gold nanoparticle bilayers on gold sensors." Colloids and Surfaces A: Physicochemical and Engineering Aspects 560 (January 2019): 393–401. http://dx.doi.org/10.1016/j.colsurfa.2018.10.037.

Full text

APA, Harvard, Vancouver, ISO, and other styles

50

MOGI, IWAO, SUSUMU OKUBO, GIYUU KIDO, and YASUAKI NAKAGAWA. "PATTERN FORMATION OF ELECTROLESS DEPOSITION AND COLLOID AGGREGATION OF GOLD IN HIGH MAGNETIC FIELDS." Fractals 01, no. 03 (1993): 475–79. http://dx.doi.org/10.1142/s0218348x93000502.

Full text

Abstract:

Pattern formation of two kinds of aggregation was investigated in high magnetic field of 8 T (tesla) as an experimental approach to the irreversible aggregation with particle drifts. A drastic change was observed in the growth pattern of the gold metal-forest (electroless deposit of gold around a lead ribbon), including a randomly ramified structure at 0 T and oblique growth with a smooth interface at 8 T. On the other hand, no remarkable effect of the magnetic field was observed in the branching pattern of the gold colloid solution.

APA, Harvard, Vancouver, ISO, and other styles

We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!