摘要:
Disclosed is a cross-linked molecularly imprinted polymer including cross-linked chitosan having selective binding sites for phosphate ions, phosphate containing molecules, or a combination of both.
摘要:
Disclosed is a cross-linked molecularly imprinted polymer including cross-linked chitosan having selective binding sites for phosphate ions, phosphate containing molecules, or a combination of both.
摘要:
A molecularly imprinted polymer sensor device for detecting the presence of a taggant molecular structure in a fluid is disclosed. The molecularly imprinted polymer sensor device comprises a molecularly imprinted crosslinked polymer having a crosslinked core and a plurality of polymer arms attached to the core, wherein the core has molecular sized cavities adapted to selectively receive and bind displacement molecules having the taggant molecular structure and a colorimetric indicator, said displacement molecule being selectively removed from the molecularly imprinted crosslinked polymer and replaced with the taggant molecular structure upon exposure to the fluid containing the taggant molecular structure therein, thereby indicating the presence of the taggant molecular structure in the fluid.
摘要:
A system for automatically creating and maintaining a database of information utilizing user opinions about subjects, particularly exceptional experiences. Described is an Internet system assisting/motivating a population of users interested in information about certain categories of subjects to automatically maintain the database content and to improve the usefulness and quality of the database information without any substantial management by the website owner-manager. The user opinions are primarily in the form of both comments and ratings about which natural-language terms best describe a particular subject, enabling user searches of the subject database to be by way of preferred such descriptive natural-language terms, which terms are further preferred to be evaluative and approving.
摘要:
A system for automatically creating and maintaining a database of information utilizing user opinions about subjects, particularly exceptional experiences. Described is an Internet system assisting/motivating a population of users interested in information about certain categories of subjects to automatically maintain the database content and to improve the usefulness and quality of the database information without any substantial management by the website owner-manager. The user opinions are primarily in the form of both comments and ratings about which natural-language terms best describe a particular subject, enabling user searches of the subject database to be by way of preferred such descriptive natural-language terms, which terms are further preferred to be evaluative and approving.
摘要:
A method for detecting a taggant molecular structure in a fluid includes providing a molecularly imprinted polymer sensor device, contacting a molecularly imprinted crosslinked star polymer with the fluid, and correlating a color change in the fluid with the amount of the taggant molecular structure in the fluid. The device has polymer arms attached to a core, and the core has molecular sized cavities adapted to selectively receive and bind displacement molecules having the taggant molecular structure and a colorimetric indicator. The displacement molecule is selectively removed from the molecularly imprinted crosslinked polymer upon exposure to the taggant molecular structure in the fluid thereby indicating the presence of the taggant molecular structure in the fluid based on a loss of color along a length of a housing.
摘要:
A system for automatically creating and maintaining a database of information utilizing user opinions about subjects, particularly exceptional experiences. Described is an Internet system assisting/motivating a population of users interested in information about certain categories of subjects to automatically maintain the database content and to improve the usefulness and quality of the database information without any substantial management by the website owner-manager. The user opinions are primarily in the form of both comments and ratings about which natural-language terms best describe a particular subject, enabling user searches of the subject database to be by way of preferred such descriptive natural-language terms, which terms are further preferred to be evaluative and approving.
摘要:
A molecularly imprinted polymer sensor device for detecting the presence of a taggant molecular structure in a fluid is disclosed. The molecularly imprinted polymer sensor device comprises a molecularly imprinted crosslinked polymer having a crosslinked core and a plurality of polymer arms attached to the core, wherein the core has molecular sized cavities adapted to selectively receive and bind displacement molecules having the taggant molecular structure and a colorimetric indicator, said displacement molecule being selectively removed from the molecularly imprinted crosslinked polymer and replaced with the taggant molecular structure upon exposure to the fluid containing the taggant molecular structure therein, thereby indicating the presence of the taggant molecular structure in the fluid.
摘要:
A system for automatically creating and maintaining a database of information utilizing user opinions about subjects, particularly exceptional experiences. Described is an Internet system assisting/motivating a population of users interested in information about certain categories of subjects to automatically maintain the database content and to improve the usefulness and quality of the database information without any substantial management by the website owner-manager. The user opinions are primarily in the form of both comments and ratings about which natural-language terms best describe a particular subject, enabling user searches of the subject database to be by way of preferred such descriptive natural-language terms, which terms are further preferred to be evaluative and approving.
摘要:
A drug delivery system, product and method which effectuates delivery of appropriate amounts of a pharmaceutically active agent only upon stimulus of a physiological agent released during a disease event are described. A polymer that can bind to a specific biological stimulus and respond with a specific response is included. The response may be release of a pharmaceutical agent, an optical signal or a change in physical properties of the polymer. The design of associative polymers that are held together using temporary bonds which will dissolve, break apart or swell in the presence of the specific stimulus are described. One embodiment includes a reversible response to a biological stimulus.