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This paper presents a new digital-ticket circulating scheme and trust management scheme for a digital ticket. A digital ticket is a digital medium that guarantees certain rights of the owner and it includes software licenses, resource access tickets, event tickets, and plane tickets. The circulation of digital tickets comprises three types of principal(More)
Many features of conducting polymers, including simplicity for nanostructure fabrication, tailored functional groups for bioconjugation, intrinsic electrical conductivity, and softer mechanical characteristics than metals, provide advantages as materials for cell-related diagnostic and therapeutic platforms. On the other hand, nanostructured materials have(More)
Although electrically stimulated neurite outgrowth on bioelectronic devices is a promising means of nerve regeneration, immunogenic scar formation can insulate electrodes from targeted cells and tissues, thereby reducing the lifetime of the device. Ideally, an electrode material capable of electrically interfacing with neurons selectively and efficiently(More)
A series of methyl- or benzyl-capped oligoethylene glycol functionalized 2,5-dibromo-3-oxythiophenes are synthesized and successfully polymerized by either Grignard metathesis (GRIM) polymerization or reductive coupling polymerization to yield the corresponding polymers in reasonable yields and molecular weights with narrow molecular weight distribution.(More)
The three-dimensional (3D) poly(3,4-ethylenedioxythiophene) (PEDOT)-based bioelectronic interfaces (BEIs) with diverse dimensional micro/nanorod array structures, varied surface chemical pro-perties, high electrical conductivity, reversible chemical redox switching, and high optical transparency are used for capturing circulating tumor cells (CTCs). Such 3D(More)
Short peptides that recognize the alpha form of poly( l-lactide) (PLLA) crystalline films were identified from a phage-displayed peptide library. An enzyme-linked immunosorbent assay (ELISA) revealed that the apparent binding constants of the phage clones for the alpha form of PLLA were greater than those of the unselected phage library. The specificity(More)
This paper presents a new electronic commerce scheme that provides consumers with a one stop check-out service for the purchase of a set of items from multiple autonomous shops. In this scheme, a consumer collects a transaction ticket, a specific form of digital-right, from each shop for each purchase representing the right to said purchase, and transfers(More)
We present an equilibrium model of a moral-hazard economy with one firm and financial markets, where a stock and bonds are traded. We show that it is optimal for the principal to forbid the agent to trade the stock; that the second-best interest rate is lower than the first-best interest rate; and that the second-best equity premium can be higher or lower(More)
Peptides that specifically bind to polyetherimide (PEI) were selected, characterized, and used for the noncovalent modification of the PEI surface. The peptides were successfully identified from a phage-displayed peptide library. A chemically-synthesized peptide composed of the Thr-Gly-Ala-Asp-Leu-Asn-Thr sequence showed an extremely high binding constant(More)