X-ray dynamical diffraction in amino acid crystals: a step towards improving structural resolution of biological molecules via physical phase measurements

Autor(es)

Morelhao, Sergio L. ; Remedios, Claudio M. R. ; Calligaris, Guilherme A. ; Nisbet, Gareth

• Tipo de documento: Artigo Científico
• Fonte: JOURNAL OF APPLIED CRYSTALLOGRAPHY; v. 50, p. 12-pg., 2017-06-01.

Resumo

In this work, experimental and data analysis procedures were developed and applied for studying amino acid crystals by means of X-ray phase measurements. The results clearly demonstrated the sensitivity of invariant triplet phases to electronic charge distribution in D-alanine crystals, providing useful information for molecular dynamics studies of intermolecular forces. The feasibility of using phase measurements to investigate radiation damage mechanisms is also discussed on experimental and theoretical grounds. (AU)

• Processo FAPESP: 12/01367-2 - Medidas de fase de raios x usadas como sonda de pequenas alterações estruturais induzidas por dopantes em cristais de relevância tecnológica
• Beneficiário: Zohrab Gevorg Amirkhanyan
• Modalidade de apoio: Bolsas no Brasil - Pós-Doutorado
• Processo FAPESP: 16/11812-4 - 13th Biennial Conference on High Resolution X-ray Diffraction and Imaging
• Beneficiário: Sérgio Luiz Morelhão
• Modalidade de apoio: Auxílio à Pesquisa - Reunião - Exterior
• Processo FAPESP: 14/08819-1 - XXIII Congress and General Assembly of the International Union of Crystallography
• Beneficiário: Sérgio Luiz Morelhão
• Modalidade de apoio: Auxílio à Pesquisa - Reunião - Exterior
• Processo FAPESP: 14/21284-0 - International Symposium on Crystallography - 100 years of History
• Beneficiário: Sérgio Luiz Morelhão
• Modalidade de apoio: Auxílio à Pesquisa - Reunião - Brasil
• Processo FAPESP: 12/15858-8 - XI International Conference on Nanostructured Materials (NANO 2012)
• Beneficiário: Sérgio Luiz Morelhão
• Modalidade de apoio: Auxílio à Pesquisa - Reunião - Exterior