The discovery and chemical identification, in the 1920s, of the aliphatic polyester: poly(3-hydroxybutyrate),
PHB, as a granular component in bacterial cells proceeded without any of the …

Taxanes are potent antimitotic agents that have demonstrated efficacy in a wide range of
malignancies. Due to their poor water-solubility, these cytostatic drugs were first formulated with …

Cross-linked high amylose starches have been developed as excipients for the formulation
of controlled-release solid dosage forms for the oral delivery of drugs. Advantages of this …

In many skeletal support systems of plants and animals, cellulose, chitin, and collagen occur
in the form of microfibrils ordered in a chiral nematic fashion (helicoids). However, these …

THE preparation of a neutral aqueous suspension of cellulose crystallites by hydrolysis in
strong sulphuric acid (952 gm./l.) at 30 or 40 C. for 24 hr. has been described 1 . A similar …

The unit cell of poly-e-caprolactone was found to be orthorhombic with dimensions a= 7.496+
0.002, b= 4.974+ 0" 001, c= 17.297+ 0-023/~(fiber axis). The space group is P212121. …

The infrared spectra of oriented films of valonia cellulose and of ramie and bacterial cellulose
crystallites have been observed in the 3 μ region. Polarization properties of the bands …

The polarized infrared spectra of crab chitin crystallites, blowfly larval cuticle, lobster tendon,
and partially deacetylated lobster chitin have been studied. In addition, the spectra of …

Samples of bacterial poly (d-hydroxybutyrate-co-fl-hydroxyvalerate)(P (HB-co-HV)) were
analyzed by 250-MHz 1H nuclear magnetic resonance(NMR) and Fourier transforminfrared (…

Microfibrillar fragments of purified crab and shrimp chitin were prepared by hydrolysis in 3 m
HCl at its boiling point (104C). After removal of the acid by centrifugal washing and dialysis, …