2007
DOI: 10.1166/jnn.2007.814
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Electron Beam Modification of Polymer Nanospheres

Abstract: Polystyrene spheres, 500 nm in diameter, self-assembled on the surface of silicon oxide are modified by exposure to an electron beam in a scanning electron microscope. Under electron beam exposure at room temperature, the diameter of the polystyrene spheres decreases by approximately 13% following a 9.9 mC/cm2 dose. The shrinkage of the spheres offers a new route for nanosphere lithography where the gaps between the spheres can be accurately tuned. Exposure to electrons also alters the surface chemistry of the… Show more

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Cited by 13 publications
(3 citation statements)
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“…hydrodynamic fingerprinting [95], dynamic light scattering [96] and photon correlation spectroscopy [98,99]. As polystyrene colloids can shrink 1) upon removal of the solvent [102], 2) upon expo-A c c e p t e d M a n u s c r i p t sure to an electron beam [103] and/or swell in certain solvents [104], it is perhaps no surprise that the in-situ size of IDC PS-S particles is larger than their dry (TEM) one.…”
Section: Model Particles: Charged Ps Latex Spheresmentioning
confidence: 99%
See 1 more Smart Citation
“…hydrodynamic fingerprinting [95], dynamic light scattering [96] and photon correlation spectroscopy [98,99]. As polystyrene colloids can shrink 1) upon removal of the solvent [102], 2) upon expo-A c c e p t e d M a n u s c r i p t sure to an electron beam [103] and/or swell in certain solvents [104], it is perhaps no surprise that the in-situ size of IDC PS-S particles is larger than their dry (TEM) one.…”
Section: Model Particles: Charged Ps Latex Spheresmentioning
confidence: 99%
“…As polystyrene colloids can shrink (1) upon removal of the solvent [102], (2) upon exposure to an electron beam [103] and/or swell in certain solvents [104], it is perhaps no surprise that the in situ size of IDC PS-S particles is larger than their dry (TEM) one.…”
Section: Model Particles: Charged Ps Latex Spheresmentioning
confidence: 99%
“…They are widely used in the synthesis of biologically active compounds, such as drug delivery systems, magnetic resonance imaging (MRI), biosensors, bioseparation and magneto-thermal therapy [17]. On the other hand, some comprehensive reports have been described in the literature as micromeritics such as nanospheres, nanorods, nanofibers, nanoreefs, nanoboxes [18]. One of the most famous atom-efficient multicomponent reactions is Mannich reaction which involves carbon-carbon bond formation between an enolizable ketone as a nucleophile and a Schiff base as an electrophile to provide b-amino carbonyl compounds [19].…”
Section: Introductionmentioning
confidence: 99%