The pore size of mesoporous silica nanoparticles regulates their antigen delivery efficiency.Subunit vaccines generally proceed through a 4-step in vivo cascade-the DUMP cascade-to generate potent cell-mediated immune responses (1) drainage to lymph nodes; (2) uptake by dendritic cells (DCs); (3) maturation of DCs; and (4) Presentation of peptide-MHC I complexes to CD8 the influence of silica pore size on efficiencylt;sup the influence of silica pore size on efficiencygt;+ the influence of silica pore size on efficiencylt;/sup the influence of silica pore size on efficiencygt; T cells.. results for this questionHow is pore size determined for HPLC materials?How is pore size determined for HPLC materials?For silica HPLC materials the method most commonly used for pore size and surface area determination is from the BET (Brunauer,Emmett and Teller) nitrogen adsorption/desorption equation.The Influence of Silica Pore Size on Efficiency
Influence of the hydrothermal treatment on the chromatographic properties of monolithic silica capillaries for nano-liquid chromatography or capillary electrochromatography.By Claire Demesmay.Monolithic Silica Stationary Phases in Liquid Chromatography.Cited by 14Publish Year 2010Author Qing Qin,Sheng Zhang,Wei-Guang Zhang,Zhen-Bin Zhang,Ya-Jin Xiong,Zi-Yuan Guo,Jun Fan,Sheng RuIMMUNOLOGY Copyright the influence of silica pore size on efficiency#169; 2020 The pore size ofThe pore size of mesoporous silica nanoparticles regulates their antigen delivery efficiency Xiaoyu Hong1,Xiaofang Zhong1,Guangsheng Du1,Yingying Hou1,Yunting Zhang1,Zhirong Zhang1,Tao
Jan 17,2013 the influence of silica pore size on efficiency#0183;Small pore size has been believed to be good for defectivity since the smaller volume of each pore is unlikely to trap larger,aggregate particles 9,15,16,20 and has potential to reduce slurry flow rate.31 However,in this study,small pores (typically less than 20 m) are found to affect the profiles of material removal rate.A series of pads made of the same TPU polymer resin (72D in Shore D hardness scale) but with number average poreCited by 1Publish Year 2018Author S.Wahyuningsih,A.H.Ramelan,D.T.Wardoyo,S.Ichsan,Y.R.KristiawanCharacterization of Silica-Based Monoliths with Bimodal Apr 26,2002 the influence of silica pore size on efficiency#0183;Band dispersion was studied and the retention thermodynamics addressed for insulin and angiotensin II on C18 silica monoliths with a bimodal pore size distribution,covering linear mobile-phase velocities up to 1 cm/s and different temperatures.These data suggest that the influence of average column pressure on retention (between 0 and 10 MPa) is not negligible.
300 the influence of silica pore size on efficiency#197; pore size ( ) gives the highest efficiency.120 the influence of silica pore size on efficiency#197; and 200 the influence of silica pore size on efficiency#197; pore sizes would be too small to give a good peak shape and resolution.It is important to choose an appropriate pore size for achieving a good peak shape.An overly small or overly large pore size results in peak broadening and poor resolution.Cited by 21Publish Year 2020Author Xiaoyu Hong,Xiaofang Zhong,Guangsheng Du,Yingying Hou,Yunting Zhang,Zhirong Zhang,Tao Gong,LiEstimated Reading Time 8 minsInfluence of Pore Space Hierarchy on the Efficiency of an Apr 29,2020 the influence of silica pore size on efficiency#0183;The influence of a hierarchically structured pore system of a silica solgel support for application as a functional component in an acetylcholinesterase-based enzyme array,with respect to its efficiency (response time,in particular) is investigated.
penetrate into the pore of the silica material if the pore size is larger than 4.5 nm.The sample S S has high adsorption efficiency due to its mesoporous structure with a large total pore volume and an average pore size of 11 nm.Cited by 21Publish Year 2020Author Xiaoyu Hong,Xiaofang Zhong,Guangsheng Du,Yingying Hou,Yunting Zhang,Zhirong Zhang,Tao Gong,LiThe impact of silica gel pore and particle sizes on HPLC Experimental results revealed that the retention factor and resolution of racemates generally decreased with increasing pore size; the column prepared with the smallest (3 m) silica gel particle
Mar 11,2016 the influence of silica pore size on efficiency#0183;In general,it is always difficult to find the exact pore size of materials having pore diameter the influence of silica pore size on efficiencylt;0.3 nm and GIS framework type zeolite have a narrower pore entrance compared toCited by 29Publish Year 2008Author Jennifer M.Stokke,David W.MazyckInfluence of Polyvinyl Alcohol (PVA) Addition on Silica the influence of silica pore size on efficiency#0183;The utilization and modification of silica from rice straw as the main ingredient of adsorbent has been studied.The aim of this study was to determine the optimum composition of PVA (polyvinyl alcohol) silica to produce adsorbents with excellent pore characteristics,optimum adsorption efficiency and optimum pH for methyl yellow adsorptions.X-Ray Fluorescence (XRF) analysis results
IntroductionExperimental PartResults and DiscussionConclusionAuthors' ContributionsRecently,there has been a growing interest in nanomaterials.The properties of materials with nanometre dimensions are significantly different from those of bulk materials because of (i) large fraction of surface atoms; (ii) high surface energy; (iii) spatial confinement and (iv) reduced imperfections .Porous materials are solids that contain empty pores dispersed within their framework .The pores may be open pores connecting to the outside of the material or closed pores isolated from the outside.PorousSee more on royalsocietypublishingCited by 32Publish Year 2018Author Rania E.Morsi,Rasha S.Mohamed(PDF) Influence of the hydrothermal treatment on the Consequently,we studied the influence of the hydrothermal treatment and of its duration on the textural (pore size distribution) and chromatographic properties (retention,efficiency) both in nano-LC and CEC of in situ-synthesized capillary silica monoliths,which were grafted or non-grafted.Cited by 32Publish Year 2007Author G.Puy,R.Roux,C.Demesmay,J.-L.Rocca,J.Iapichella,A.Galarneau,D.BrunelInfluence of the hydrothermal treatment on the Aug 10,2007 the influence of silica pore size on efficiency#0183;Their structural characteristics,related to their unique bimodal pore size distribution of their macropores and mesopores,confer specific chromatographic properties to silica monoliths.Macropores of few micrometers in size allow to work at high flow rates with low back pressure.Mesopores of about 10 nm in size provide a high specific area.Moreover,the thin skeleton reduces
Column efficiency is similarly dependent on particle size,but other factors such column packing and pore size also influence the efficiency and final resolution of the purification.Take column packing.A column can only perform efficiently if it is packed well,regardless of the adsorbent used.When the stationary phases are not uniformly Cited by 3Publish Year 2008Author Joanna M.Skluzacek,M.Isabel Tejedor,Marc A.AndersonImpact of pore structure parameters on column performance Continuous porous silica rods consisting of a mesoporous (pore size,14 or 25 nm) silica skeleton of 1 m size and through-pores of 1.7 m were prepared and derivatized to C(18) phase by
Dec 30,2019 the influence of silica pore size on efficiency#0183;Particle size distribution (tight or large) Pore diameter (surface area) These characteristics will directly influence crucial parameters involved in a successful chromatography Resolution (efficiency of separation final purity) Retention (which allows separation) Capacity (maximal sample quantity and final recovery/yield)Estimated Reading Time 2 minsImproving the microscopic sweep efficiency of water May 08,2017 the influence of silica pore size on efficiency#0183;Fluid/fluid and fluid/rock interfaces have large influence on the microscopic sweep efficiency of an enhanced oil recovery process.Therefore,modification of these interfaces using nanoparticles to suitable conditions might lead to better recovery factors.Particularly,wettability alteration and interfacial tension reduction are the two key mechanisms which should be considered.This study
pore volume is accompanied with a decrease of its mechanical stability.An opinion has often appeared in the literature that silica gel with the specific pore volume of about 1.5cm3g_1 containing only about 22 vol.% of matrix represents the limit of applicability and materials with larger specific poreHPLC Column - Pore Sizes and Particle DiametersSep 20,2017 the influence of silica pore size on efficiency#0183;Particle Size The particle size of the silica spheres controls the efficiency of the silica material,referencing the average diameter of the silica particles used for column packing.It should be noted that the particle size quoted is the average value,which comes from a range of particle sizes.
Sep 01,2008 the influence of silica pore size on efficiency#0183;In conclusion,the specific activity of IMP exhibits a close correlation with the pore characteristics (pore size,mesophase and pore volume) of the mesoporous silica support materials.When the pore diameter of support is larger than the molecular dimensions of PGA,immobilized PGA shows a high specific activity,such as,the initial specific activity of PGA immobilized on KIT-6/130 reaches 3500 IU/g by dry support.Mesophases and poreInfluence of Silica Fume on the Reflectivity and high transmission efficiency can be improved.Silica fume is a by-product in the process of melting metallic silicon or ferrosilicon alloys.Silica fume par-ticles are very fine; most of particles size is less than 1 m,and the average particles size is about 0.1 m,which is
Feb 24,2007 the influence of silica pore size on efficiency#0183;In this paper,three different support structures are compared and evaluated with respect to the efficiency (rejection and flux) of an iron-modified silica separation layer.The main difference in the supports was the nominal pore size of the surface responsible for facilitating the membrane layer.Influence of size and surface acidity of silica Feb 26,2020 the influence of silica pore size on efficiency#0183;Influence of size and surface acidity of silica nanoparticles on inhibition of the formation damage by bentonite-free water-based drilling fluids.Part II dynamic filtration.Johanna Vargas Clavijo 1,Leidy J Rold the influence of silica pore size on efficiency#225;n 2,Laura Valencia 3,Sergio H Lopera 1,Richard D Zabala 4,Jos the influence of silica pore size on efficiency#233; C C the influence of silica pore size on efficiency#225;rdenas 5,William Dur the influence of silica pore size on efficiency#225;n 3,Camilo A Franco 2 and Farid B
Aug 10,2007 the influence of silica pore size on efficiency#0183;In order to reduce the synthesis time,the number of synthesis steps and above all the temperature synthesis,to adapt the synthesis of such silica monoliths in polymeric microsystem devices,we extensively studied the influence of the hydrothermal treatment and its duration on textural (pore size distribution) and chromatographic properties (retention,efficiency) of in situ-synthesized capillaryPeople also askHow big are the pores of silica particles?How big are the pores of silica particles?Silica particles obtained by the Stber method have a microporous structure with an average pore size below 2 nm.Synthesis and characterization of porous silica particles
Nanostructured silicatitania composites (STC) synthesized with varying pore sizes (45,134,and 299 the influence of silica pore size on efficiency#197;) were tested for the removal of methanol from a humid air stream.The STC pellets were characterized for surface area and pore size distribution and tested in a packed-bed photocatalytic reactor for methanol removal and oxidation.While the pore size distributions for all STC were unimodal Size-dependent gene delivery of amine modified silica However,the influence of particle size of silica nanoparticles on gene transfection efficiency has not been reported to the best of our knowledge.The particle size influence of nanocarriers on transfectivity is dependent on the composition of nanocarriers.It was observed that small particle sizes (6 nm) had a higher transfection efficiency
In order to investigate the influence of support structure properties on CO 2 capture performances of solid amine adsorbents,a novel three-dimensional disordered porous silica (3dd) with hierarchical pore networks was developed and then compared to other three materials as adsorbent support,namely,hierarchical porous silica (HPS),MCM-41,and SBA-15.
The comparison shows that a larger pore size gives higher efficiency for insulin analy-sis.A pore size larger than 100 the influence of silica pore size on efficiency#197; is enough for the efficient separation of insulin and a macro pore size of 300 the influence of silica pore size on efficiency#197; is not necessary for such a moderate molecular weight mole-cule.A small particle size gives higher efficiency for insulin analysis.This isThe Influence of Silica Pore Size on Efficiency May 23,2011 the influence of silica pore size on efficiency#0183;Silica C18 modification Normal Pore Size ( the influence of silica pore size on efficiency#197;) 100 200 60 150 BET (m2/g) 517 194 172 126 Pore Volume Desorption (mL/g) 1.18 0.99 0.37 0.61 Median Pore Size Desorption ( the influence of silica pore size on efficiency#197;) 78 176 53 141 Table 2.Pore size and surface area data of the two HPLC materials used in this study From the data it is clear that this bonding chemistry reduces
In this study,the CD derivative,mono (6Aazido6Adeoxy)per(pchlorophenylcarbamonylated) CD was chemically immobilized onto the surface of an aminofunctionalized silica gel with different poreThe influence of pore size distribution on the oxygen Thus,some authors have shown that a porosity made up of large mesopores,instead of micropores,can facilitate a more efficient contact with reactants and reduce mass-transport limitations,12,2224 whereas other authors have reported a high electrocatalytic activity by using microporous carbons with a large specific surface area.2527 Therefore,a fundamental understanding of the influence of pore size is
Jun 01,2020 the influence of silica pore size on efficiency#0183;MSNs with larger pore size showed stronger immune activation and antitumor efficacy than MSNs with smaller pore size (Figs.5 and 6),although