Kaitlin M. Bratlie
Iowa State University
Self-healing hydrogelsAnalytical chemistryBiophysicsPhenotypeBiomedical engineeringAdsorptionInfrared spectroscopyCatalysisNanotechnologyChemistryMaterials scienceBenzeneBiomaterialMacrophageDrug deliveryWound healingChemical engineeringTissue engineeringPlatinumCell biology
72Publications
22H-index
2,389Citations
Publications 68
Newest
#1Kaitlin M. Bratlie (MIT: Massachusetts Institute of Technology)H-Index: 22
#2Tram T. Dang (MIT: Massachusetts Institute of Technology)H-Index: 12
Last. Daniel G. Anderson (MIT: Massachusetts Institute of Technology)H-Index: 119
view all 7 authors...
Competing Interests: Prof. Ralph Weissleder is a shareholder of VisEn Medical. This does not alter the authors' adherence to all the PLoS ONE policies on sharing data and materials. Funding: This work was supported by grant 17-2007-1063 from the Juvenile Diabetes Research Foundation. T.D. is grateful to the support from the Agency for Science, Technology and Research of Singapore for the A*STAR National Science graduate fellowship. The funders had no role in study design, data collection and ana...
55 CitationsSource
#1Kaitlin M. BratlieH-Index: 22
#2Said R. BogatyrevH-Index: 13
view all 7 authors...
#1Tram T. Dang (MIT: Massachusetts Institute of Technology)H-Index: 12
#2Qiaobing Xu (MIT: Massachusetts Institute of Technology)H-Index: 38
Last. Daniel G. Anderson (MIT: Massachusetts Institute of Technology)H-Index: 119
view all 7 authors...
Cell encapsulation has been broadly investigated as a technology to provide immunoprotection for transplanted endocrine cells. Here we develop a new fabrication method that allows for rapid, homogenous microencapsulation of insulin-secreting cells with varying microscale geometries and asymmetrically modified surfaces. Micromolding systems were developed using polypropylene mesh, and the material/surface properties associated with efficient encapsulation were identified. Cells encapsulated using...
23 CitationsSource
#1Tram T. Dang (MIT: Massachusetts Institute of Technology)H-Index: 12
#2Qiaobing Xu (MIT: Massachusetts Institute of Technology)H-Index: 38
Last. Daniel G. Anderson (MIT: Massachusetts Institute of Technology)H-Index: 119
view all 7 authors...
Cell encapsulation has been broadly investigated as a technology to provide immunoprotection for transplanted endocrine cells. Here we develop a new fabrication method that allows for rapid, homogenous microencapsulation of insulin-secreting cells with varying microscale geometries and asymmetrically modified surfaces. Micromolding systems were developed using polypropylene mesh, and the mesh material/surface properties associated with efficient encapsulation were identified. Cells encapsulated ...
Source
#1Michael E. Grass (LBNL: Lawrence Berkeley National Laboratory)H-Index: 4
#2Ya-Wen Zhang (PKU: Peking University)H-Index: 58
Last. Gabor A. Somorjai (LBNL: Lawrence Berkeley National Laboratory)H-Index: 158
view all 9 authors...
264 CitationsSource
#1Michael E. GrassH-Index: 32
#2Ya-Wen ZhangH-Index: 58
Last. Gabor A. SomorjaiH-Index: 158
view all 9 authors...
CO oxidation is one of the most studied heterogeneous reactions, being scientifically and industrially important, particularly for removal of CO from exhaust streams and preferential oxidation for hydrogen purification in fuel cell applications. The precious metals Ru, Rh, Pd, Pt, and Au are most commonly used for this reaction because of their high activity and stability. Despite the wealth of experimental and theoretical data, it remains unclear what is the active surface for CO oxidation unde...
22 CitationsSource
Pyridine hydrogenation in the presence of a surface monolayer consisting of cubic Pt nanoparticles stabilized by tetradecyltrimethylammonium bromide (TTAB) was investigated by sum frequency generation (SFG) vibrational spectroscopy using total internal reflection (TIR) geometry. TIR-SFG spectra analysis revealed that a pyridinium cation (C{sub 5}H{sub 5}NH{sup +}) forms during pyridine hydrogenation on the Pt nanoparticle surface, and the NH group in the C{sub 5}H{sub 5}NH{sup +} cation becomes ...
31 CitationsSource
#1Kaitlin M. Bratlie (LBNL: Lawrence Berkeley National Laboratory)H-Index: 22
#2Yimin Li (LBNL: Lawrence Berkeley National Laboratory)H-Index: 16
Last. Gabor A. Somorjai (LBNL: Lawrence Berkeley National Laboratory)H-Index: 158
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Kinetic measurements at low temperatures (310–360 K) using gas chromatography (GC) for benzene hydrogenation on Pt(100) and Pt(111) single crystal surfaces have been carried out at Torr pressures. These kinetic measurements demonstrated a linear compensation effect for the production of cyclohexane. A detailed application of the model of selective energy transfer to the experimentally obtained results yields the vibrational frequency of the adsorbate leading to reaction. This frequency is attrib...
11 CitationsSource
#1Kaitlin M. Bratlie (University of California, Berkeley)H-Index: 22
Catalytic reactions of cyclohexene, benzene, n-hexane, 2-methylpentane, 3-methylpentane, and 1-hexene on platinum catalysts were monitored in situ via sum frequency generation (SFG) vibrational spectroscopy and gas chromatography (GC). SFG is a surface specific vibrational spectroscopic tool capable of monitoring submonolayer coverages under reaction conditions without gas-phase interference. SFG was used to identify the surface intermediates present during catalytic processes on Pt(111) and Pt(...
Source
#1Kaitlin M. Bratlie (University of California, Berkeley)H-Index: 22
#2Hyunjoo LeeH-Index: 68
Last. Gabor A. SomorjaiH-Index: 158
view all 5 authors...
Benzene hydrogenation was investigated in the presence of a surface monolayer consisting of Pt nanoparticles of different shapes (cubic and cuboctahedral) and tetradecyltrimethylammonium bromide (TTAB). Infrared spectroscopy indicated that TTAB binds to the Pt surface through a weak C−H···Pt bond of the alkyl chain. The catalytic selectivity was found to be strongly affected by the nanoparticle shape. Both cyclohexane and cyclohexene product molecules were formed on cuboctahedral nanoparticles, ...
869 CitationsSource