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61.
Jennifer C. Rote Sarah N. Malkowski C. Skyler Cochrane Gabrielle E. Bailey Noah S. Brown Mauricio Cafiero 《合成通讯》2017,47(5):435-441
Dopamine is a ubiquitous neurotransmitter essential in the proper functioning of the human body. In addition to this critical role, the catecholamine core has shown utility as a scaffold for numerous drugs and in other applications, like metal detection and adhesive materials. Substituents at the 6-position of dopamine’s catechol core can modulate its stereoelectronic properties, the acidity of its phenolic hydroxyl groups, and the overall hydrophobicity of the molecule. Herein, we report the synthesis of a series of four novel dopamine analogues substituted at the 6-position of catechol core. The 1H NMR chemical shift of the aromatic proton meta to the substituent correlated strongly with the Hammett σm constant, confirming the electronic properties of substituents. 相似文献
62.
Anshul Sharma Abdollah Neshat Cory J. Mahnen Alek d. Nielsen Jacob Snyder Tory L. Stankovich Benjamin G. Daum Emily M. LaSpina Gabrielle Beltrano Yunxiang Gao Shuo Li Byung‐Woo Park Robert J. Clements Ernest J. Freeman Christopher Malcuit Jennifer A. McDonough LaShanda T. J. Korley Torsten Hegmann Elda Hegmann 《Macromolecular bioscience》2015,15(2):292-292
63.
Biocompatible,Biodegradable and Porous Liquid Crystal Elastomer Scaffolds for Spatial Cell Cultures 下载免费PDF全文
Anshul Sharma Abdollah Neshat Cory J. Mahnen Alek d. Nielsen Jacob Snyder Tory L. Stankovich Benjamin G. Daum Emily M. LaSpina Gabrielle Beltrano Yunxiang Gao Shuo Li Byung‐Wook Park Robert J. Clements Ernest J. Freeman Christopher Malcuit Jennifer A. McDonough LaShanda T. J. Korley Torsten Hegmann Elda Hegmann 《Macromolecular bioscience》2015,15(2):200-214
64.
Windmiller JR Bandodkar AJ Valdés-Ramírez G Parkhomovsky S Martinez AG Wang J 《Chemical communications (Cambridge, England)》2012,48(54):6794-6796
The realization of epidermal chemical sensing requires a fabrication methodology compatible with the non-planarity and irregularities of the human anatomy. This communication describes the development of printed temporary transfer tattoo (T3) electrochemical sensors for physiological and security monitoring of chemical constituents leading to the demonstration of 'electronic skin'. 相似文献
65.
66.
67.
Gabrielle Viennet 《Probability Theory and Related Fields》1997,107(4):467-492
This paper investigates the problem of density estimation for absolutely regular observations. In a first part, we state
two important results: a new variance inequality and a Rosenthal type inequality. This allows us to study the ?
p
-integrated risk, p≧ 2, of a large class of density estimators including kernel or projection estimators. Under the summability condition on the
mixing coefficients ∑
k≧ 0
(k+1)
p− 2
β
k
<∞, the rates obtained are those known to be optimal in the independent setting.
Received: 17 October 1995 / In revised form: 26 October 1996 相似文献
68.
This paper describes a number of articles that have been published on amino acid analysis using CE during the period from June 2003 to May 2005. This review article follows the previous ones of Smith (Electrophoresis 1999, 20, 3078-3083), Prata et al. (Electrophoresis 2001, 22, 4129-4138), and Poinsot et al. (Electrophoresis 2003, 24, 4047-4062). Several new developments in amino acid analysis with CE are reported concerning UV detection, LIF, MS, and NMR. In addition, we describe articles concerning clinical and pharmaceutical studies, neuroclinical applications, and agricultural and food analysis. 相似文献
69.
Gordon KC David G Walsh TJ 《Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy》2009,72(1):209-213
The spectral properties of 1,6,7,12,13,18-hexaazatrinaphthylene (HATN) and a number of related compounds are modeled using density functional theory, B3LYP. The calculations predict the frequencies with mean absolute deviation of 6 cm(-1) and there is little improvement on going to basis sets larger than 6-31 G(d). The substituent effects on the observed spectra are modeled effectively in both frequency shifts and relative intensities. The electronic properties may be predicted using TD-DFT and these are in very good agreement, in terms of transition energies and intensities, with the experimental data. 相似文献
70.
Daniel P. Downes James H. P. Collins Bimala Lama Huadong Zeng Tan Nguyen Gabrielle Keller Marcelo Febo Joanna R. Long 《Chemphyschem》2019,20(2):216-230
The noninvasive, quantitative ability of nuclear magnetic resonance (NMR) spectroscopy to characterize small molecule metabolites has long been recognized as a major strength of its application in biology. Numerous techniques exist for characterizing metabolism in living, excised, or extracted tissue, with a particular focus on 1H-based methods due to the high sensitivity and natural abundance of protons. With the increasing use of high magnetic fields, the utility of in vivo 1H magnetic resonance spectroscopy (MRS) has markedly improved for measuring specific metabolite concentrations in biological tissues. Higher fields, coupled with recent developments in hyperpolarization, also enable techniques for complimenting 1H measurements with spectroscopy of other nuclei, such as 31P and 13C, and for combining measurements of metabolite pools with metabolic flux measurements. We compare ex vivo and in vivo methods for studying metabolism in the brain using NMR and highlight insights gained through using higher magnetic fields, the advent of dissolution dynamic nuclear polarization, and combining in vivo MRS and ex vivo NMR approaches. 相似文献