Thermal investigations of biopolymer solutions and scanning microcalorimetry

نویسندگان

چکیده

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Differential scanning microcalorimetry

Differential scanning calorimetry (DSC) is an experimental technique to measure the heat energy uptake that takes place in a sample during controlled increase (or decrease) in temperature. At the simplest level it may be used to determine thermal transition (“melting”) temperatures for samples in solution, solid, or mixed phases (e.g. suspensions). But with more sensitive apparatus and more car...

متن کامل

Photoresist Metrology and Microcalorimetry Using an Ultracompliant Micromachined Scanning Thermal Probe

This paper reports on the detection of nano-scale chemical variations in photosensitive polymers using scanning thermal probes fabricated from polyimide and metal thin films on a silicon substrate. The high thermal insulation achieved by these probes permits the measurement of thermal conductance variations <10 W/K. The probes are mechanically very compliant, with a typical a measured spring co...

متن کامل

Rheology of biopolymer solutions and gels.

Rheological techniques and methods have been employed for many decades in the characterization of polymers. Originally developed and used on synthetic polymers, rheology has then found much interest in the field of natural (bio) polymers. This review concentrates on introducing the fundamentals of rheology and on discussing the rheological aspects and properties of the two major classes of biop...

متن کامل

DNA hydration studied by pressure perturbation scanning microcalorimetry.

Pressure perturbation differential scanning calorimetry was used to determine thermal expansion coefficients and thus temperature-induced volume changes of DNA duplexes differing in their GC/AT content. It was shown that the temperature-induced unfolding of the DNA duplexes proceeds with a significant increase of the thermal expansion coefficient and the partial volume of the DNA. Unusually, la...

متن کامل

Similarities Between Polyelectrolyte Gels and Biopolymer Solutions

Correspondence to: F. Horkay (E-mail: [email protected]) ABSTRACT: Small angle neutron scattering (SANS) measurements and osmotic swelling pressure measurements are reported for polyelectrolyte gels and solutions under nearly physiological conditions. A synthetic polymer (sodium-polyacrylate) and three biopoly­ mers (DNA, hyaluronic acid, and polyaspartic acid) are studied. The neutron scatt...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: FEBS Letters

سال: 1974

ISSN: 0014-5793

DOI: 10.1016/0014-5793(74)80697-6