Abstract:
A direct polycondensation method for medical biodegradable polylactic acid (PLA). The invention uses commercialized creatinine (a type of biomaterial organic guanidine compounds—the arginine metabolite creatinine in human body) as the catalyst and industrial lactic acid (mass content 85-90%, aqueous solution) as the monomer to synthesize the PLA in terms of second polycondensation without solvent. Instead of tin catalysts having cytotoxicity, the catalyst used in the invention has high biocompatibility and biosafety. The synthesized PLA does not contain any metal and other toxic components; therefore, it can be used as the carrier for targeting drugs and controlled release drugs. The green catalyst and green processing method (no solvent applied and no toxic products produced) are used to synthesize the green biodegradable PLA with high biosafety. The molecular weight distribution for all synthesized products is narrow and the molecular weight is controllable within 1.5-3.0×104.
Abstract:
Generally, this disclosure describes authentication using biometric data for mobile device e-commerce transactions. A method may include capturing a mobile device user's biometric data; comparing the captured biometric data to authorized user biometric data stored on the mobile device; and authenticating an e-commerce transaction if the captured biometric data corresponds to the authorized user biometric data stored on the mobile device.
Abstract:
Technologies for monitoring data storage location for cloud data include a cloud monitoring server configured to communicate with one or more cloud customer computing devices and cloud service providers. The cloud monitoring server receives monitoring requests from the cloud customer computing devices and retrieves provider information from the cloud service providers. The cloud monitoring server compiles response data based on the monitoring requests and the provider information, and sends response data to the cloud customer computing devices. Cloud customer computing devices may send on-demand monitoring requests and/or continuous, policy-based monitoring requests. For policy-based monitoring, the cloud monitoring server continually monitors the provider information and provides response data when one or more conditions specified in the policy are satisfied. The cloud monitoring server may also make recommendations and provide feedback based on the monitoring requests or the provider information. Other embodiments are described and claimed.
Abstract:
Systems and methods may provide for detecting a browser request for web content. Additionally, interaction information associated with a plurality of sources may be determined in response to the browser request, and a risk profile may be generated based on the interaction. The risk profile may include at least a portion of the interaction information as well as recommended control actions to mitigate the identified risk. In one example, the risk profile is presented to a user associated with the browser request as well as to a security control module associated with the platform.
Abstract:
Systems and methods may provide for implementing a counteroffer generation service. In one example, the method may include detecting an inquiry relating to an item offered by a vendor, analyzing the inquiry to determine the item, generating a counteroffer relating to the item, generating counteroffer code including the counteroffer relating to the item, and conducting a transaction relating to the item utilizing the counteroffer code.
Abstract:
Embodiments of the present invention relate to glass compositions, glass fibers formed from such compositions, and related products. In one embodiment, a glass composition comprises 58-62 weight percent SiO2, 14-17 weight percent Al2O3, 14-17.5 weight percent CaO, and 6-9 weight percent MgO, wherein the amount of Na2O is 0.09 weight percent or less.
Abstract:
Disclosed are the use of phosphate-based glasses as a solid state laser gain medium, in particular, the invention relates to broadening the emission bandwidth of rare earth ions used as lasing ions in a phosphate-based glass composition, where the broadening of the emission bandwidth is believed to be achieved by the hybridization of the glass network.
Abstract:
The present invention relates generally to 3′-OH unblocked nucleotides and nucleosides labeled and unlabeled with 5-methoxy-substituted nitrobenzyl-based photocleavable terminating groups for use in methods and systems related to DNA and RNA sequencing and analysis. These compounds may be used as reversible terminators as they exhibit fast nucleotide incorporation kinetics, single-base termination, high nucleotide selectivity, and rapid terminating group cleavage that results in a naturally occurring nucleotide.
Abstract:
Compounds having the structure of Formula I, including pharmaceutically acceptable salts of the compounds, are CETP inhibitors, and are useful for raising HDL-cholesterol, reducing LDL-cholesterol, and for treating or preventing atherosclerosis. The compounds have 3 cyclic groups connected by single bonds, as for example triphenyl, which are attached directly to the ring of formula I or attached at the position B.
Abstract:
The present invention provides a direct polycondensation method for medical biodegradable polylactic acid (PLA) using creatinine catalyzed lactic acid. The invention uses commercialized creatinine (a type of biomaterial organic guanidine compounds—the arginine metabolite creatinine (CR) in human body) as the catalyst and industrial lactic acid (LA, mass content 85-90%, aqueous solution) as the monomer to synthesize the high biosafety of medical PLA in terms of second polycondensation without solvent (identity). Instead of tin catalysts having cytotoxicity, the catalyst used in the invention has high biocompatibility and biosafety. The synthesized PLA does not contain any metal and other toxic components; therefore, it can be used as the carrier for targeting drugs and controlled release drugs. In addition, the green catalyst and green processing method (no solvent applied and no toxic products produced) are used in the invention to synthesize the green biodegradable PLA with high biosafety. The polymerization reaction is simple and the raw materials required are low in costs, thus it is easy for industrialization. Further, the molecular weight distribution for all synthesized products is narrow and the molecular weight is controllable within 1.5-3.0×104.