Ion Tracks and Microtechnology

Spohr, R.; Bethge, Κ.

doi:10.1007/978-3-322-83103-3

Cited by 309 publications

(116 citation statements)

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“…This has been partially triggered by ion track technology ͑e.g., micropores 24 and track grafting 25 ͒ and the exciting possibility of synthesis of new complex molecules ͑e.g., fullerenes 26,27 ͒ in a single ion track. Also, the use of heavy ions in the GeV range has demonstrated the possibility of nonconventional pathways in chemical modification of polymers.…”

Section: Introductionmentioning

confidence: 99%

Chemical damage in poly(phenylene sulphide) from fast ions: Dependence on the primary-ion stopping power

et al. 1996

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Thin poly͑phenylene sulphide͒ foils were bombarded with fast atomic ions ͑ 4 He, 12 C, 16 O, 32 S, 79 Br, 127 I͒ in the energy range between 2.5 to 78 MeV. In order to maintain the same ion track size for all impacting ions, their initial velocity was kept constant at 1.1 cm/ns. Under these conditions the deposited energy density in a single ion track changes as a result of the varying stopping power (dE/dx) of the projectiles in the material. Fourier transform infrared spectroscopy and UV-visible spectroscopy were used to characterize the irradiated targets. Damage cross sections ͑ ͒ for different chemical bonds, such as C-S and ring C-C bonds, are extracted from the IR data. For all analyzed IR bands, the values of scale roughly with the square of dE/dx ͑energy density in a single ion track͒. The absorption of the irradiated samples in the visible and UV region increases as a function of fluence. The rate of increase of absorption at a particular wavelength scales also as (dE/dx) n with nϷ2. The observed nonlinear dependence of the damage cross sections on the deposited energy density is considered in the light of two models: a statistical model based on the fluctuations of the energy deposited by the primary ions ͑hit theory͒ and an activation ͑thermal spike͒ model. It is found that the damage cross section is not determined directly by the initial deposited energy density distribution. The best agreement between experiment and theory is obtained when transport of the deposited energy occurs.

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Section: Introductionmentioning

confidence: 99%

Chemical damage in poly(phenylene sulphide) from fast ions: Dependence on the primary-ion stopping power

et al. 1996

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“…More recently, MeV-GeV ion track production has been used to modify materials in a controlled manner [1,2], being a potential tool to engineer material properties in the nanometer to micrometer scale. MeV-GeV ions are finding recently wider use in radiation therapy for, e.g., treatment of different forms of cancer.…”

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confidence: 99%

Measurement of MeV Ion Track Structure in an Organic Solid

et al. 1996

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“…In this work we have employed a lithography method based on a permanent 3D patterning process that utilizes the changes in chemical and physical properties induced by high energy (MeV) heavy-ion beam irradiation via so-called ion track formation [21,22]. Chemical etching of the ion track damage is applied for various applications [21,22], e.g.…”

Section: Introductionmentioning

confidence: 99%

“…Chemical etching of the ion track damage is applied for various applications [21,22], e.g. the fabrication of microfiltration membranes used in biology and medicine [23].…”

Section: Introductionmentioning

confidence: 99%

Selective binding of oligonucleotide on TiO 2 surfaces modified by swift heavy ion beam lithography

Pérez-Girón¹,

Hirtz²,

McAtamney³

et al. 2014

Nuclear Instruments and Methods in Physics Research Section B:

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We have used swift heavy-ion beam based lithography to create patterned bio-functional surfaces on rutile TiO 2 single crystals. The applied lithography method generates a permanent and well defined periodic structure of micrometre sized square holes having nanostructured TiO 2 surfaces, presenting different physical and chemical properties compared to the surrounding rutile single crystal surface. On the patterned substrates selective binding of oligonucleotides molecules is possible at the surfaces of the holes. This immobilisation process is only being controlled by UV light exposure. The patterned transparent substrates are compatible with fluorescence detection techniques, are mechanically robust, have a high tolerance to extreme chemical and temperature environments, and apparently do not degrade after ten cycles of use. These qualities make the patterned TiO 2 substrates useful for potential biosensor applications.

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Ion Tracks and Microtechnology

Cited by 309 publications

References 0 publications

Chemical damage in poly(phenylene sulphide) from fast ions: Dependence on the primary-ion stopping power

Chemical damage in poly(phenylene sulphide) from fast ions: Dependence on the primary-ion stopping power

Measurement of MeV Ion Track Structure in an Organic Solid

Selective binding of oligonucleotide on TiO 2 surfaces modified by swift heavy ion beam lithography

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