✦ LIBER ✦

Microwave dielectric absorption of DNA in aqueous solution

✍ Scribed by Kenneth R. Foster; Maria A. Stuchly; Andrzej Kraszewski; Stanislaw S. Stuchly

Publisher: Wiley (John Wiley & Sons)
Year: 1984
Tongue: English
Weight: 380 KB
Volume: 23
Category: Article
ISSN: 0006-3525
DOI: 10.1002/bip.360230312

No coin nor oath required. For personal study only.

✦ Synopsis

The dielectric properties of aqueous solutions of DNA were measured at frequencies ranging from 0.1 to 12 GHz. The results are analyzed using the Maxwell mixture theory and yield a value for the hydration of the DNA of about 0.4 g/g, which is in the range ohserved in other investigations. No evidence was found for an additional ahsorption effect a t microwave frequencies, which has been predicted to occur in certain DNA analogs due to the vibrational excitation of the double helix by the applied microwave field.

📜 SIMILAR VOLUMES

Microwave absorption spectroscopy of DNA

✍ Irving J. Bigio; Timothy R. Gosnell; Pritish Mukherjee; Jeffrey D. Saffer 📂 Article 📅 1993 🏛 Wiley (John Wiley & Sons) 🌐 English ⚖ 380 KB

Dielectric relaxation of collagen in aqu

Dielectric relaxation of collagen in aqueous solutions

✍ Shin'ichiro Umemura; Masanori Sakamoto; Reinosuke Hayakawa; Yasaku Wada 📂 Article 📅 1979 🏛 Wiley (John Wiley & Sons) 🌐 English ⚖ 462 KB

The complex dielectric constant of collagen in aqueous solutions (polymer concentration, C, = 0.02-0.2%) was measured a t 10°C in the frequency range from 3 Hz to 30 kHz. The loss peak for C, = 0.02% is located a t 90 Hz and the dielectric relaxation time rn is estimated to be 1.8 f 0.3 msec. The TL

Ultrasonic absorption in aqueous solutio

Ultrasonic absorption in aqueous solution of lysozyme

✍ Hiroshi Kanda; Nirio Ookubo; Haruhiko Nakajima; Yasuko Suzuki; Michio Minato; Ta 📂 Article 📅 1976 🏛 Wiley (John Wiley & Sons) 🌐 English ⚖ 49 KB 👁 1 views

Values of A V for carboxyl and amino groups in the Synopsis and Table I were erroneously given and should read 9.4 and 19.7 cm3/mole, respectively. Consequently, the statement on page 788 that the bV is considerably smaller than that for glycine should be deleted. The value of A V for carboxyl group

Dielectric properties of aqueous solutio

Dielectric properties of aqueous solutions of sonicated DNA above 40 MHz

✍ Juan R. de Xammar Oro; J. Raul Grigera 📂 Article 📅 1984 🏛 Wiley (John Wiley & Sons) 🌐 English ⚖ 312 KB

The dielectric properties of sonicated calf-thymus DNA sodium salt in aqueous sclutions have been studied in the frequency range from 40 MHz to 2 GHz by time domain spectroscopy (TDS). A dielectric dispersion not previously reported was found, which has a characteristic frequency of about 150 MHz. A

Dielectric behaviour of frozen DNA in so

Dielectric behaviour of frozen DNA in solution

✍ Camelia Gabriel; Edward Grant 📂 Article 📅 1999 🏛 John Wiley and Sons 🌐 English ⚖ 103 KB

In this article, measurements are reported on ice and frozen DNA solutions between 100 Hz-10 MHz. Pure ice is shown to exhibit single relaxation behaviour, which confirms previous work taken over a more restricted frequency range. The frozen DNA solution displays double-dispersion behaviour. One dis

Chain-length-dependent microwave absorpt

Chain-length-dependent microwave absorption of DNA

✍ M. L. Swicord; G. S. Edwards; J. L. Sagripanti; C. C. Davis 📂 Article 📅 1983 🏛 Wiley (John Wiley & Sons) 🌐 English ⚖ 273 KB

Biological effects of low-level (producing nonsignificant thermal induction) microwave or radiofrequency radiation have been extensively r e p ~r t e d . l -~ Such low-level biological responses are suggestive of molecular or membrane interactions leading to disruption of function. This is particula