@article{banerjee_perez-castillejos_hahn_smirnov_grebel_2010, title={Micro-fluidic channels on nanopatterned substrates: Monitoring protein binding to lipid bilayers with surface-enhanced Raman spectroscopy}, volume={489}, ISSN={["1873-4448"]}, url={http://www.scopus.com/inward/record.url?eid=2-s2.0-77949487267&partnerID=MN8TOARS}, DOI={10.1016/j.cplett.2010.02.053}, abstractNote={We used surface-enhanced Raman spectroscopy (SERS) to detect binding events between streptavidin and biotinylated lipid bilayers. The binding events took place at the surface between micro-fluidic channels and anodized aluminum oxide (AAO) with the latter serving as substrates. The bilayers were incorporated in the substrate pores. It was revealed that non-bound molecules were easily washed away and that large suspended cells (Salmonella enterica) are less likely to interfere with the monitoring process: when focusing to the lower surface of the channel, one may resolve mostly the bound molecules.}, number={1-3}, journal={CHEMICAL PHYSICS LETTERS}, publisher={Elsevier BV}, author={Banerjee, Amrita and Perez-Castillejos, R. and Hahn, D. and Smirnov, Alex I. and Grebel, H.}, year={2010}, month={Apr}, pages={121–126} } @article{echols_mahaffey_banerjee_pieper_stebbins_lansky_cohen_velazquez_santos_newby_et al._2007, title={Racial differences among high-risk patients presenting with non-ST-segment elevation acute coronary syndromes (results from the SYNERGY trial)}, volume={99}, ISSN={["1879-1913"]}, DOI={10.1016/j.amjcard.2006.08.031}, abstractNote={Management and outcomes of patients with acute coronary syndromes (ACSs) may vary according to patient race and ethnicity. To assess racial differences in presentation and outcome in high-risk North American patients with non–ST-segment elevation (NSTE) ACS, we analyzed baseline racial/ethnic differences and all-cause death or nonfatal myocardial infarction (MI) in 6,077 white, 586 African-American, and 344 Hispanic patients through 30-day, 6-month, and 1-year follow-up. Frequencies of hypertension were 66% for whites, 83% for African-Americans, and 78% for Hispanics (overall p <0.001). Use of angiography was similar across groups. Use of percutaneous coronary intervention (46% for whites, 41% for African-Americans, and 45% for Hispanics, overall p = 0.046) and coronary artery bypass grafting (20% for whites, 16% for African-Americans, and 22% for Hispanics, overall p = 0.044) differed. African-American patients had significantly fewer diseased vessels compared with white patients (p = 0.0001). Thirty-day death or MI was 14% for whites, 10% for African-Americans, and 14% for Hispanics (overall p = 0.034). After adjustment for baseline variables, African-American patients had lower 30-day death or MI compared with white patients (odds ratio 0.73, 95% confidence interval 0.55 to 0.98). There were no differences in 6-month death or MI across racial/ethnic groups. In conclusion, baseline clinical characteristics differed across North American racial/ethnic groups in the SYNERGY trial. African-American patients had significantly better adjusted 30-day outcomes but similar 6-month outcomes compared with white patients. Management and outcomes of patients with acute coronary syndromes (ACSs) may vary according to patient race and ethnicity. To assess racial differences in presentation and outcome in high-risk North American patients with non–ST-segment elevation (NSTE) ACS, we analyzed baseline racial/ethnic differences and all-cause death or nonfatal myocardial infarction (MI) in 6,077 white, 586 African-American, and 344 Hispanic patients through 30-day, 6-month, and 1-year follow-up. Frequencies of hypertension were 66% for whites, 83% for African-Americans, and 78% for Hispanics (overall p <0.001). Use of angiography was similar across groups. Use of percutaneous coronary intervention (46% for whites, 41% for African-Americans, and 45% for Hispanics, overall p = 0.046) and coronary artery bypass grafting (20% for whites, 16% for African-Americans, and 22% for Hispanics, overall p = 0.044) differed. African-American patients had significantly fewer diseased vessels compared with white patients (p = 0.0001). Thirty-day death or MI was 14% for whites, 10% for African-Americans, and 14% for Hispanics (overall p = 0.034). After adjustment for baseline variables, African-American patients had lower 30-day death or MI compared with white patients (odds ratio 0.73, 95% confidence interval 0.55 to 0.98). There were no differences in 6-month death or MI across racial/ethnic groups. In conclusion, baseline clinical characteristics differed across North American racial/ethnic groups in the SYNERGY trial. African-American patients had significantly better adjusted 30-day outcomes but similar 6-month outcomes compared with white patients.}, number={3}, journal={AMERICAN JOURNAL OF CARDIOLOGY}, author={Echols, Melvin R. and Mahaffey, Kenneth W. and Banerjee, Anindita and Pieper, Karen S. and Stebbins, Amanda and Lansky, Alexandra and Cohen, Mauricio G. and Velazquez, Eric and Santos, Renato and Newby, L. Kristin and et al.}, year={2007}, month={Feb}, pages={315–321} } @article{banerjee_tsiatis_2006, title={Adaptive two-stage designs in phase II clinical trials}, volume={25}, ISSN={["1097-0258"]}, DOI={10.1002/sim.2501}, abstractNote={Two‐stage designs have been widely used in phase II clinical trials. Such designs are desirable because they allow a decision to be made on whether a treatment is effective or not after the accumulation of the data at the end of each stage. Optimal fixed two‐stage designs, where the sample size at each stage is fixed in advance, were proposed by Simon when the primary outcome is a binary response. This paper proposes an adaptive two‐stage design which allows the sample size at the second stage to depend on the results at the first stage. Using a Bayesian decision‐theoretic construct, we derive optimal adaptive two‐stage designs; the optimality criterion being minimum expected sample size under the null hypothesis. Comparisons are made between Simon's two‐stage fixed design and the new design with respect to this optimality criterion. Copyright © 2006 John Wiley & Sons, Ltd.}, number={19}, journal={STATISTICS IN MEDICINE}, author={Banerjee, Anindita and Tsiatis, Anastasios A.}, year={2006}, month={Oct}, pages={3382–3395} } @article{lucovsky_banerjee_niimi_koh_hinds_meyer_lupke_kurz_1997, title={Elimination of sub-oxide transition regions at Si-SiO2 interfaces by rapid thermal annealing at 900 degrees C}, volume={117}, ISSN={["1873-5584"]}, DOI={10.1016/S0169-4332(97)80079-7}, abstractNote={In many spectroscopic studies, particularly by X-ray photoelectron spectroscopy, XPS, it has been generally assumed that the existence of sub-oxide transition regions at SiSiO2 interfaces were not strongly dependent on synthesis chemistries and processing conditions. This paper presents experimental evidence for a kinetically-limited phase transition at SiSiO2 interfaces at approximately 900°C that can minimize and to a large degree eliminate significant interfacial sub-oxide transition regions. The paper emphasizes a connection between (i) differences in photoluminescence from SiOx bulk films before and after 900°C annealing and (ii) differences in electrical performance of SiSiO2 interfaces and optical second harmonic generation from SiSiO2 interfaces, also before and after 900°C annealing}, journal={APPLIED SURFACE SCIENCE}, author={Lucovsky, G and Banerjee, A and Niimi, H and Koh, K and Hinds, B and Meyer, C and Lupke, G and Kurz, H}, year={1997}, month={Jun}, pages={202–206} } @article{lucovsky_banerjee_hinds_claflin_koh_yang_1997, title={Minimization of sub-oxide transition regions at Si-SiO2 interfaces by 900 degrees C rapid thermal annealing}, volume={36}, ISSN={["0167-9317"]}, DOI={10.1016/s0167-9317(97)00049-x}, abstractNote={Abstract Combining previously reported optical second harmonic generation (SHG) data with i) newly-reported X-ray photoelectron spectroscopy (XPS) data and ii) the Auger electron spectroscopy (AES) results presented in this paper demonstrates that interfacial sub-oxide bonding (SiOx, x}, number={1-4}, journal={MICROELECTRONIC ENGINEERING}, author={Lucovsky, G and Banerjee, A and Hinds, B and Claflin, B and Koh, K and Yang, H}, year={1997}, month={Jun}, pages={207–210} }