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Physics And Chemistry Basis Of Biotechnology - De Cuyper - tiera.ru

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2 . Magnetically labelled antibodies .................................................................... 198<br />

3 . Other magnetically labelled ligands ............................................................... 200<br />

4 . Magnetically labelled cells ............................................................................. 201<br />

5 . Axonal and neuronal tracing ........................................................................... 203<br />

6 . Imaging of gene expression and enzyme activity ........................................... 204<br />

7 . Conclusions .................................................................................................... 206<br />

References ........................................................................................................... 206<br />

Radioactive microspheres for medical applications ................................................. 213<br />

Urs Häfeli .........................................................................................................213<br />

Summary ..............................................................................................................213<br />

1. <strong>De</strong>finition of microspheres ..............................................................................213<br />

2 . Applications and in vivo fate of microspheres ................................................214<br />

3 . General properties of radioactive microspheres ..............................................217<br />

3.1. Alpha-emitters .......................................................................................... 217<br />

3.2. Beta-emitters ............................................................................................. 218<br />

3.3. Gamma-emitters ....................................................................................... 220<br />

4 . Preparation of radioactive microspheres .........................................................221<br />

4.1. Radiolabeling during the microsphere preparation ................................... 222<br />

4.2 Radiolabeling after the microsphere preparation ....................................... 224<br />

4.3. Radiolabeling by neutron activation of pre-made microspheres ......... 226<br />

4.4. In situ neutron capture therapy using non-radioactive microspheres ..228<br />

5 . Diagnostic uses of radioactive microspheres ..................................................229<br />

6 . Therapeutic uses of radioactive microspheres ................................................234<br />

6.1. Therapy with alpha-emitting microspheres ...............................................234<br />

6.2. Therapy with beta-emitting microspheres .................................................235<br />

7 . Considerations for the use of radioactive microspheres ..................................240<br />

References ............................................................................................................242<br />

Radiation-induced bioradicals: ................................................................................ 249<br />

Physical. chemical and biological aspects ............................................................... 249<br />

Wim Mondelaers and Philippe Lahorte ........................................................... 249<br />

Abstract ................................................................................................................249<br />

1 . Introduction .................................................................................................... 249<br />

2 . The interaction of ionising radiation with matter ............................................ 251<br />

3 . The physical stage ........................................................................................... 254<br />

3.1. Direct ionizing radiations ......................................................................... 254<br />

3.2. Indirect ionizing radiations ....................................................................... 256<br />

3.3. Linear Energy Transfer (LET) .................................................................. 257<br />

3.4. Dose and dose equivalent ......................................................................... 257<br />

3.5. Induced radioactivity ................................................................................ 258<br />

4 . The physicochemical stage ............................................................................. 259<br />

5 . The chemical stage ..........................................................................................261<br />

5.1. Radical reactions with biomolecules ........................................................ 262<br />

5.1 . 1. Radiation damage to DNA ...............................................................263<br />

5.1.2. Radiation damage to proteins .............................................................265<br />

5.1.3. Radiation damage to lipids and polysaccharides ................................ 266<br />

5

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