Robert B. Hammond
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View article: Some Luminescence Properties of Excited Silicon at Low Temperatures
Some Luminescence Properties of Excited Silicon at Low Temperatures Open
Detailed studies of the luminescence due to the recombination of nonequilibrium electrons and holes in Si are reported for the temperature range 2-16°K. The properties of the exciton and electron-hole condensate luminescence are investigat…
View article: Structure, morphology and surface properties of α-lactose monohydrate in relation to its powder properties
Structure, morphology and surface properties of α-lactose monohydrate in relation to its powder properties Open
The particulate properties of α-lactose monohydrate (αLMH), an excipient and carrier for pharmaceuticals, is important for the design, formulation and performance of a wide range of drug products. Here an integrated multi-scale workflow pr…
View article: Impact of Inequivalent Wetting on the Face-Specific Dissolution Rates for Single Faceted-Crystals Predicted from Solid-State Binding Energies
Impact of Inequivalent Wetting on the Face-Specific Dissolution Rates for Single Faceted-Crystals Predicted from Solid-State Binding Energies Open
A methodology for the prediction of face-specific relative dissolution rates for single-faceted crystals accounting for inequivalent wetting by the solvent is presented. This method is an extended form of a recent binding energy model deve…
View article: Predicting the Strength of Cohesive and Adhesive Interparticle Interactions for Dry Powder Inhalation Blends of Terbutaline Sulfate with α-Lactose Monohydrate
Predicting the Strength of Cohesive and Adhesive Interparticle Interactions for Dry Powder Inhalation Blends of Terbutaline Sulfate with α-Lactose Monohydrate Open
Grid-based systematic search methods are used to investigate molecule-molecule, molecule-surface, and surface-surface contributions to interparticle interactions in order to identify the crystal faces that most strongly affect particle beh…
View article: Data on the intermolecular interactions of 1,1,1,2-tetrafluoroethane liquids from molecular dynamics simulations
Data on the intermolecular interactions of 1,1,1,2-tetrafluoroethane liquids from molecular dynamics simulations Open
Detailed atomistic interactions of 1,1,1,2-tetrafluoroethane (HFA-134a) liquid were presented in a data format, namely, DL_ANALYSER Notation for Atomic Interactions (DANAI), that annotates precisely the nature of interactions that is disco…
View article: Data on the Intermolecular Interactions of 1,1,1,2-Tetrafluoroethane Liquids from Molecular Dynamics Simulations
Data on the Intermolecular Interactions of 1,1,1,2-Tetrafluoroethane Liquids from Molecular Dynamics Simulations Open
View article: Understanding the agglomerate crystallisation of hexamine through X-ray microscopy and crystallographic modelling
Understanding the agglomerate crystallisation of hexamine through X-ray microscopy and crystallographic modelling Open
View article: A Digital Mechanistic Workflow for Predicting Solvent-Mediated Crystal Morphology: The α and β Forms of <scp>l</scp>-Glutamic Acid
A Digital Mechanistic Workflow for Predicting Solvent-Mediated Crystal Morphology: The α and β Forms of <span>l</span>-Glutamic Acid Open
The solvent-mediated crystal morphologies of the α and β polymorphic forms of l-glutamic acid are presented. This work applies a digital mechanistically based workflow that encompasses calculation of the crystal lattice energy and its cons…
View article: Unlocking secrets of inhalation blends through X-ray Computed Tomography and Microscopy
Unlocking secrets of inhalation blends through X-ray Computed Tomography and Microscopy Open
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View article: Measured Growth Rates of Ibuprofen: Comparing Single Crystal and Bulk Suspensions Data
Measured Growth Rates of Ibuprofen: Comparing Single Crystal and Bulk Suspensions Data Open
The design of industrial crystallization processes usually employs laboratory‐scale experimental data which must be correlated with the full‐scale process for effective technology transfer. In this context, the measured growth rates of sin…
View article: From Particles to Powders: Digital Approaches to Understand Structure and Powder Flow of Inhaled Formulations
From Particles to Powders: Digital Approaches to Understand Structure and Powder Flow of Inhaled Formulations Open
The design of a successful inhaled formulation is a complex project that requires fine tuning of processes and properties to achieve optimal performance. In this work we attempt to provide a summary from the INFORM2020 project of an all-in…
View article: Crystallographic tomography and molecular modelling of structured organic polycrystalline powders
Crystallographic tomography and molecular modelling of structured organic polycrystalline powders Open
Novel combination of crystallographic tomography and molecular modelling is used to examine the powder packing behaviour and crystal interactions for an organic polycrystalline powder bed.
View article: Influence of solution chemistry on the solubility, crystallisability and nucleation behaviour of eicosane in toluene : acetone mixed-solvents
Influence of solution chemistry on the solubility, crystallisability and nucleation behaviour of eicosane in toluene : acetone mixed-solvents Open
Compositionally dependent solution structure is found to influence the solubility, crystallisability and nucleation mechanism of eicosane when crystallising from toluene : acetone mixed-solvent solutions.
View article: Unlocking the Microstructure of Inhalation Blends using X-ray Microscopy
Unlocking the Microstructure of Inhalation Blends using X-ray Microscopy Open
© Respiratory Drug Delivery 2020. Reproduced with permission from Respiratory Drug Delivery 2020, Virginia Commonwealth University and RDD Online.
View article: 3D characterisation of dry powder inhaler formulations: Developing X-ray micro computed tomography approaches
3D characterisation of dry powder inhaler formulations: Developing X-ray micro computed tomography approaches Open
View article: Molecular Synthon Modelling Of Inhalation Pharmaceuticals: A Digital Approach To Understanding And Engineering Particle Surface Interactions
Molecular Synthon Modelling Of Inhalation Pharmaceuticals: A Digital Approach To Understanding And Engineering Particle Surface Interactions Open
Reproduced with permission from Respiratory Drug Delivery 2020, Virginia Commonwealth University and RDD Online.
View article: On Measuring the Specific Surface Area of inhalation-grade lactose powders
On Measuring the Specific Surface Area of inhalation-grade lactose powders Open
Reproduced with permission from Respiratory Drug Delivery 2020, Virginia Commonwealth University and RDD Online.
View article: A digital workflow from crystallographic structure to single crystal particle attributes for predicting the formulation properties of terbutaline sulfate
A digital workflow from crystallographic structure to single crystal particle attributes for predicting the formulation properties of terbutaline sulfate Open
A detailed inter-molecular (synthonic) analysis of terbutaline sulfate, an ionic addition salt for inhalation drug formulation, is related to its crystal morphology, the surface chemistry of the habit faces and hence to its crystal surface…
View article: Crystal Growth of the Acentric Organic Nonlinear Optical Material Methyl-<i>p</i>-hydroxybenzoate: Morphological Variations in Crystals Grown by Physical Vapor Transport
Crystal Growth of the Acentric Organic Nonlinear Optical Material Methyl-<i>p</i>-hydroxybenzoate: Morphological Variations in Crystals Grown by Physical Vapor Transport Open
Single crystals of the acentric compound methyl-p-hydroxybenzoate were grown by self-nucleation and seeded growth from the vapor phase by the physical vapor transport (PVT) process. In the temperature range of 80–95 °C (nucleation supersat…
View article: Work after Retirement: Worklife Transitions of Career Public Employess
Work after Retirement: Worklife Transitions of Career Public Employess Open
Engaging in paid employment after claiming retirement benefits may be an important avenue for individuals to work longer as life expectancies rise.After separating from one's career employer, individuals may engage in paid work to stay act…
View article: DEM analysis of the effect of particle shape, cohesion and strain rate on powder rheometry
DEM analysis of the effect of particle shape, cohesion and strain rate on powder rheometry Open
View article: Kinetics of the Aqueous-Ethanol Solution Mediated Transformation between the Beta and Alpha Polymorphs of <i>p</i>-Aminobenzoic Acid
Kinetics of the Aqueous-Ethanol Solution Mediated Transformation between the Beta and Alpha Polymorphs of <i>p</i>-Aminobenzoic Acid Open
A quantitative kinetics analysis of the solution-mediated phase transformations in aqueous-ethanol between the enantiotropically related alpha and beta polymorphs of p-aminobenzoic acid (PABA) is presented. A new temperature-controlled tra…
View article: Examination of inequivalent wetting on the crystal habit surfaces of RS-ibuprofen using grid-based molecular modelling
Examination of inequivalent wetting on the crystal habit surfaces of RS-ibuprofen using grid-based molecular modelling Open
Novel grid-based searching of solvent/crystal-surface interactions to investigate solution wetting impact upon crystal surface growth rates.
View article: Nudging Retirement Savings: A Field Experiment on Supplemental Plans
Nudging Retirement Savings: A Field Experiment on Supplemental Plans Open
Although supplemental saving plans can be an important part of an individual's financial security in retirement, contribution rates remain low, particularly among those with lower salaries and less education.We report findings from a field…
View article: Probing Composition and Molecular Mobility in Thin Spherical Films Using Nuclear Magnetic Resonance Measurements of Diffusion
Probing Composition and Molecular Mobility in Thin Spherical Films Using Nuclear Magnetic Resonance Measurements of Diffusion Open
The composition and molecular mobility within thin spherical liquid films have been investigated using nuclear magnetic resonance (NMR) diffusion measurements. These films were formed either on the surface of pores inside a sponge at low s…
View article: Synthesis of nuclear waste simulants by reaction precipitation: Formation of caesium phosphomolybdate, zirconium molybdate and morphology modification with citratomolybdate complex
Synthesis of nuclear waste simulants by reaction precipitation: Formation of caesium phosphomolybdate, zirconium molybdate and morphology modification with citratomolybdate complex Open
Caesium phosphomolybdate (Cs3PMo12O40·xH2O) and zirconium molybdate ([ZrMo2O7(OH)2]·2H2O) solids are known to precipitate out from highly active liquors (HAL) during reprocessing of spent nuclear fuel. Here, a new synthesis for these simul…
View article: Nucleation in complex multi-component and multi-phase systems: general discussion
Nucleation in complex multi-component and multi-phase systems: general discussion Open
crosscheck: This document is CrossCheck deposited\nrelated_article: http://dx.doi.org/10.1039/C4FD00234B\nrelated_article: http://dx.doi.org/10.1039/C4FD00214H\nrelated_article: http://dx.doi.org/10.1039/C4FD00219A\nrelated_article: http:/…
View article: Towards an understanding of the nucleation of alpha-para amino benzoic acid from ethanolic solutions: a multi-scale approach
Towards an understanding of the nucleation of alpha-para amino benzoic acid from ethanolic solutions: a multi-scale approach Open
The molecular assembly and subsequent nucleation of para-amino benzoic acid (PABA) from ethanolic solutions is probed using a multi-scale and multi-technique approach. This is applied by examining and interrelating information regarding th…