Mechanism of Protein Crystal Growth.

Protein Crystal Growth

Microscopic model of protein crystal growth.

A microscopic, reversible model to study protein crystal nucleation and growth is presented. The probability of monomer attachment to the growing crystal was assumed to be proportional to the protein volume fraction and the orientational factor representing the anisotropy of protein molecules. The rate of detachment depended on the free energy of association of the given monomer in the lattice,...

Synthesis and Crystal Growth of Sb2S3 Nanorods Using Iodine as an Initiator Material via Electrochemical Mechanism in Hydrothermal Condition

Crystalline antimony sulfide (Sb2S3) with nanorods morphology was successfully prepared via hydrothermal method by the reaction of elemental sulfur, antimony and iodine as starting materials with high yield at 180°C for 24h.Using oxidation reagents like iodine as an initiator of redox reaction to prepare Sb2S3 is reported for first time. Crystal growth of Sb2S3 was done by increasing reaction t...

Growth Mechanism and Crystal Form of Potassium Dichromate

The structure of potassium dichromate (P , Z = 4) consists of two layers parallel to (001), between which no crystallographic symmetry relation exists. These layers are nearly coincident with each other when rotated through 90° about c*. One question remained unanswered: do the crystals grow parallel to {001} with d(002) or d(001) layers? The pseudo-fourfold axis does not run parallel to a crys...

Microrobotic Streak Seeding For Protein Crystal Growth

We present a microrobotic system for protein crystal micromanipulation tasks. The focus in this paper is on the task known to crystallographers as streak seeding – it is used to entice certain protein crystals to grow. Our system features a set of custom designed micropositioner end-effectors we call microshovels to replace traditional tools used by crystallographers for this task. We have used...