منابع مشابه
Topologically protected bound states in photonic parity-time-symmetric crystals.
Parity-time (PT)-symmetric crystals are a class of non-Hermitian systems that allow, for example, the existence of modes with real propagation constants, for self-orthogonality of propagating modes, and for uni-directional invisibility at defects. Photonic PT-symmetric systems that also support topological states could be useful for shaping and routing light waves. However, it is currently deba...
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The crystal structure of the double-stranded DNA bacteriophage HK97 mature empty capsid was determined at 3.6 angstrom resolution. The 660 angstrom diameter icosahedral particle contains 420 subunits with a new fold. The final capsid maturation step is an autocatalytic reaction that creates 420 isopeptide bonds between proteins. Each subunit is joined to two of its neighbors by ligation of the ...
متن کاملCross-linked protein crystals for vaccine delivery.
The progress toward subunit vaccines has been limited by their poor immunogenicity and limited stability. To enhance the immune response, subunit vaccines universally require improved adjuvants and delivery vehicles. In the present paper, we propose the use of cross-linked protein crystals (CLPCs) as antigens. We compare the immunogenicity of CLPCs of human serum albumin with that of soluble pr...
متن کاملStability of DNA-Linked Nanoparticle Crystals
Three-dimensional ordered lattices of nanoparticles linked by DNA have potential applications in novel devices and materials, but most experimental attempts to form crystals result in amorphous packing. In this thesis, a coarse-grained model is used to address three factors which impact the kinetic and thermodynamic stability of BCC and FCC crystals formed in DNA-linked nanoparticle systems: (i...
متن کاملEnabling Thermoreversible Physically Cross-Linked Polymerized Colloidal Array Photonic Crystals.
We physically cross-linked a thermoreversible poly(vinyl alcohol) (PVA) hydrogel (TG) within a crystalline colloidal array (CCA) to form an enabling photonic crystal material. The TG consists of a physically cross-linked network formed in a process reminiscent of the well-known freeze-thaw physically cross-linking process, but which avoids solvent freezing which invariably disorders the CCA. Th...
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ژورنال
عنوان ژورنال: Journal of Crystal Growth
سال: 2006
ISSN: 0022-0248
DOI: 10.1016/j.jcrysgro.2006.08.022