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Fine-tuning the release of molecular guests from mesoporous silicas by controlling the orientation and mobility of surface phenyl substituents

Journal Article · · Chemical Engineering Journal
Phenyl-functionalized mesoporous silica materials were used to explore the effect of non-covalent interactions on the release of Ibuprofen into simulated body fluid. Variations in orientation and conformational mobility of the surface phenyl groups were introduced by selecting different structural precursors: a rigid upright orientation was obtained using phenyl groups directly bound to surface Si atoms (Ph-MSN), mobile groups were produced by using ethylene linkers to connect phenyl groups to the surface (PhEt-MSN), and groups co-planar to the surface were obtained by synthesizing a phenylene-bridged periodic mesoporous organosilica (Ph-PMO). The Ibuprofen release profiles from these materials and non-functionalized mesoporous silica nanoparticles (MSN) were analyzed using an adsorption-diffusion model. The model provided kinetic and thermodynamic parameters that evidenced fundamental differences in drug-surface interactions between the materials. All phenyl-bearing materials show lower Ibuprofen initial release rates than bare MSN. The conformationally locked Ph-MSN and Ph-PMO have stronger interactions with the drug (negative ΔG of adsorption) than the flexible PhEt-MSN and bare MSN (positive ΔG of adsorption). These differences in strength of adsorption are consistent with differences between interaction geometries obtained from DFT calculations. B3LYP-D3-optimized models show that π-π interactions contribute more to drug adsorption than H-bonding with silanol groups. Here, the results suggest that the type and geometry of interactions control the kinetics and extent of drug release, and should therefore serve as a guide to design new drug delivery systems with precise release behaviors customized to any desired target.
Research Organization:
Ames Laboratory (AMES), Ames, IA (United States)
Sponsoring Organization:
USDOE; USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
AC02-07CH11358
OSTI ID:
1417365
Alternate ID(s):
OSTI ID: 1548937
Report Number(s):
IS-J--9514; PII: S1385894717321277
Journal Information:
Chemical Engineering Journal, Journal Name: Chemical Engineering Journal Vol. 340; ISSN 1385-8947
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English

References (51)

Realistic Models of Hydroxylated Amorphous Silica Surfaces and MCM-41 Mesoporous Material Simulated by Large-scale Periodic B3LYP Calculations journal December 2008
Mesoporous Materials for Drug Delivery journal October 2007
Polarity Control at Interfaces: Quantifying Pseudo-solvent Effects in Nano-confined Systems journal August 2016
Solutions able to reproducein vivo surface-structure changes in bioactive glass-ceramic A-W3 journal June 1990
General atomic and molecular electronic structure system journal November 1993
Immobilization of Ibuprofen and Copper-Ibuprofen Drugs on Layered Double Hydroxides journal May 2005
Biocompatibility, Biodistribution, and Drug-Delivery Efficiency of Mesoporous Silica Nanoparticles for Cancer Therapy in Animals journal July 2010
Exocytosis of Mesoporous Silica Nanoparticles from Mammalian Cells: From Asymmetric Cell-to-Cell Transfer to Protein Harvesting journal April 2011
Magnetic mesoporous silica spheres for hyperthermia therapy journal December 2010
Mesoporous silica nanoparticles as controlled release drug delivery and gene transfection carriers journal August 2008
Tuning the cellular uptake and cytotoxicity properties of oligonucleotide intercalator-functionalized mesoporous silica nanoparticles with human cervical cancer cells HeLa journal February 2010
Multifunctional ZnPc-loaded mesoporous silica nanoparticles for enhancement of photodynamic therapy efficacy by endolysosomal escape journal November 2012
Interaction of CO, CO2 and CH4 with mesoporous organosilica: Periodic DFT calculations with dispersion corrections journal April 2010
Vibrational and theoretical studies of non-steroidal anti-inflammatory drugs Ibuprofen [2-(4-isobutylphenyl)propionic acid]; Naproxen [6-methoxy-α-methyl-2-naphthalene acetic acid] and Tolmetin acids [1-methyl-5-(4-methylbenzoyl)-1H-pyrrole-2-acetic acid] journal February 2006
Gated Materials for On-Command Release of Guest Molecules journal January 2016
Correlation of Mesoporous Silica Structural and Morphological Features with Theoretical Three-Parameter Model for Drug Release Kinetics journal December 2016
Polyglutamic Acid-Gated Mesoporous Silica Nanoparticles for Enzyme-Controlled Drug Delivery journal August 2016
Multifunctional Mesoporous Silica Nanocomposite Nanoparticles for Theranostic Applications journal October 2011
Mesoporous Silica Nanoparticle Nanocarriers: Biofunctionality and Biocompatibility journal July 2012
Π–Π Stacking Increases the Stability and Loading Capacity of Thermosensitive Polymeric Micelles for Chemotherapeutic Drugs journal May 2013
Solid-State NMR Study of Ibuprofen Confined in MCM-41 Material journal December 2006
Multifunctional Mesoporous Silica Nanoparticles as a Universal Platform for Drug Delivery journal September 2013
Charge-Enhanced Dry Impregnation: A Simple Way to Improve the Preparation of Supported Metal Catalysts journal February 2013
Estimates of the Ab Initio Limit for π−π Interactions:  The Benzene Dimer journal September 2002
Effect of Surface Functionalization of MCM-41-Type Mesoporous Silica Nanoparticles on the Endocytosis by Human Cancer Cells journal November 2006
2D Multinuclear NMR, Hyperpolarized Xenon and Gas Storage in Organosilica Nanochannels with Crystalline Order in the Walls journal July 2007
Conformations of Silica-Bound (Pentafluorophenyl)propyl Groups Determined by Solid-State NMR Spectroscopy and Theoretical Calculations journal September 2010
Nuclear-Targeted Drug Delivery of TAT Peptide-Conjugated Monodisperse Mesoporous Silica Nanoparticles journal March 2012
Photoinduced Intracellular Controlled Release Drug Delivery in Human Cells by Gold-Capped Mesoporous Silica Nanosphere journal March 2009
Mesoporous Silica Nanoparticle-Based Double Drug Delivery System for Glucose-Responsive Controlled Release of Insulin and Cyclic AMP journal June 2009
Amorphous Ibuprofen Confined in Nanostructured Silica Materials: A Dynamical Approach journal February 2011
Using a Reactive Force Field To Correlate Mobilities Obtained from Solid-State 13 C NMR on Mesoporous Silica Nanoparticle Systems journal August 2011
Silica-Based Materials as Drug Adsorbents: First Principle Investigation on the Role of Water Microsolvation on Ibuprofen Adsorption journal February 2014
Influence of Nanoscale Confinement on the Molecular Mobility of Ibuprofen journal June 2014
Large-Scale B3LYP Simulations of Ibuprofen Adsorbed in MCM-41 Mesoporous Silica as Drug Delivery System journal November 2014
Molecular Motions in Amorphous Ibuprofen As Studied by Broadband Dielectric Spectroscopy journal August 2008
SIMOMM:  An Integrated Molecular Orbital/Molecular Mechanics Optimization Scheme for Surfaces journal April 1999
Atomistic Model of Micelle-Templated Mesoporous Silicas: Structural, Morphological, and Adsorption Properties journal July 2012
pH-Responsive Nanoparticles for Drug Delivery journal September 2010
In Vivo Tumor Targeting and Image-Guided Drug Delivery with Antibody-Conjugated, Radiolabeled Mesoporous Silica Nanoparticles journal September 2013
Solid State NMR Characterisation of Encapsulated Molecules in Mesoporous Silica journal August 2004
An ordered mesoporous organosilica hybrid material with a crystal-like wall structure journal March 2002
Functionalization of mesoporous materials with long alkyl chains as a strategy for controlling drug delivery pattern journal January 2006
Aromatic–hydroxyl interaction of an alpha-aryl ether lignin model-compound on SBA-15, present at pyrolysis temperatures journal January 2014
Cell-induced intracellular controlled release of membrane impermeable cysteine from a mesoporous silica nanoparticle-based drug delivery system journal January 2009
Monoclonal antibody-functionalized mesoporous silica nanoparticles (MSN) for selective targeting breast cancer cells journal January 2009
Mesoporous silica nanoparticles: structural design and applications journal January 2010
Probing the mobility of ibuprofen confined in MCM-41 materials using MAS-PFG NMR and hyperpolarised-129Xe NMR spectroscopy journal January 2013
A consistent and accurate ab initio parametrization of density functional dispersion correction (DFT-D) for the 94 elements H-Pu journal April 2010
Modeling the sustained release of lipophilic drugs from liposomes journal August 2010
Modeling Drug-Carrier Interaction in the Drug Release from Nanocarriers journal August 2011

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