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Browsing Theses - Chemistry by Title
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(Massachusetts Institute of Technology, 2009)A scalable and reproducible protocol has been developed for the preparation of (-)- neomenthyldiphenylphosphine ((-)-1) from inexpensive starting materials. This ligand was then utilized in the nickel-catalyzed reductive ...
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(Massachusetts Institute of Technology, 2010)In this work we study several applications of semiconductor nanocrystals (NCs) with infrared band gaps. In the first half, we explore the physics of two systems with applications in NC based photovoltaics. The physics of ...
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(Massachusetts Institute of Technology, 2008)RNAi therapeutics represent a fundamentally new way of treating disease, permitting the selective abrogation of protein production at the genetic level. As nucleic acids do not readily enter cells, carriers are utilized ...
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(Massachusetts Institute of Technology, 2005)Catalytic addition reactions to alkynes are among the most useful and efficient methods for preparing diverse types of substituted olefins. Controlling both regioselectivity and (EIZ)- selectivity in such transformations ...
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(Massachusetts Institute of Technology, 1999)
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(Massachusetts Institute of Technology, 2010)The primary focus of this thesis is the synthesis and applications of semiconductor nanocrystals, or quantum dots (QDs). Novel synthetic routes to ternary 1-III-VI QDs are presented, and we report the first highly luminescent ...
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(Massachusetts Institute of Technology, 1981)
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(Massachusetts Institute of Technology, 2007)E. coli biotin ligase (BirA) catalyzes the site-specific ligation of biotin to the lysine within its 15-amino acid peptide substrate (AP). We harnessed the high peptide substrate specificity of BirA to develop a general ...
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(Massachusetts Institute of Technology, 2004)In this thesis, slow dynamics of supercooled liquids are investigated in the framework of the mode-coupling theory (MCT). Following the real-time generalized Langevin equation in Newtonian liquids, the dynamic Gaussian ...
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(Massachusetts Institute of Technology, 2002)Proton-coupled electron transfer (PCET) is the basic mechanism for bioenergetic conversion. Consummate examples include water oxidation in photosynthesis and oxygen reduction in respiration. Despite the importance of PCET ...
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(Massachusetts Institute of Technology, 1998)
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(Massachusetts Institute of Technology, 2004)(cont.) in the same pathway. To further probe the relationship of the adenosylmethionine and adenosylcobalamin-dependent radical enzymes, the crystal structure of lysine 5,6-aminomutase was determined to 2.8 [angstroms] ...
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(Massachusetts Institute of Technology, 1999)
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(Massachusetts Institute of Technology, 2002)Bacteriorhodopsin (bR) is a heptahelical integral membrane protein with a retinylidene prosthetic group from H. salinarum. The protein creates a proton gradient across the cell membrane by harvesting light energy. Proton ...
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(Massachusetts Institute of Technology, 1997)
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(Massachusetts Institute of Technology, 2003)Several methodological developments and applications of multidimensional solid-state nuclear magnetic resonance to biomolecular structure determination are presented. Studies are performed in uniformly 3C, 15N isotope ...
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(Massachusetts Institute of Technology, 1999)
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Solution and solid-phase synthesis of potential carbohydrate vaccines for leishmaniasis and malaria (Massachusetts Institute of Technology, 2002)The human disease leishmaniasis afflicts over 20 million people worldwide, and is caused by unicellular protozoan parasites. Cell surface carbohydrates are implicated in immune recognition of the parasite by host macrophages. ...
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(Massachusetts Institute of Technology, 2004)(cont.) 2G12, cyanovirin-N, and a recently identified anti-HIV protein, scytovirin.
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(Massachusetts Institute of Technology, 1997)
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