The Experts below are selected from a list of 246 Experts worldwide ranked by ideXlab platform
Zeev Wiesman - One of the best experts on this subject based on the ideXlab platform.
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controlled release systems for the Insect Growth regulator pyriproxyfen
Journal of Agricultural and Food Chemistry, 2003Co-Authors: Liliana Schwartz, David Wolf, Arie Markus, Slawomir Wybraniec, Zeev WiesmanAbstract:A simple technique was developed for the production of controlled-release systems (CRSs) for pyriproxyfen, an Insect Growth regulator active against the larvae of Culex pipiens, the most common species of mosquito found in developed countries. The CRSs consisted of a spongy core material encapsulated in a coating of a polyurethane or polyurea hydrogel, into which the active ingredient had been incorporated. The coating also included a surfactant to improve the low solubility in water of pyriproxyfen. The light core material enabled the CRS to float on the water surface, where the mosquitoe larvae are found. The type and amount of the polymeric coating and the amount of surfactant influenced the release profiles into water of the active ingredient. The release profiles of the CRSs were adjusted to the life cycle of the C. pipiens mosquito in order to obtain their optimal activity on the eighth day, which corresponds to the time of larval maturity. Keywords: Controlled-release systems; Insect Growth regulat...
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Controlled-release system for the Insect Growth regulator cyromazine
Clean Products and Processes, 2001Co-Authors: Liliana Schwartz, David Wolf, Arie Markus, Zeev Wiesman, Slawomir WybraniecAbstract:An encapsulation system designed to give long-lasting effectiveness of the Insect Growth regulator (IGR) cyromazine (Neporex) against Culex pipiens (Culicidae) mosquito larvae was developed. The main thrust of the research was to develop a simple method for preparing controlled-release formulations by means of an extrusion technique in combination with a supplementary coating and to study the release characteristics and effectiveness of the formulations. A series of formulations were prepared with low-density polyethylene (LDPE 600) for the matrix and with polyurea or one of four types of polyurethane for the coating. The rate of release of the active material from the controlled-release formulations was determined in an in vitro dissolution system. The biological activity of the controlled-release formulations was tested in vivo against C. pipiens larvae.
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Controlled-release system for the Insect Growth regulator cyromazine
Clean Products and Processes, 2001Co-Authors: Liliana Schwartz, David Wolf, Arie Markus, Zeev Wiesman, Slawomir WybraniecAbstract:An encapsulation system designed to give long-lasting effectiveness of the Insect Growth regulator (IGR) cyromazine (Neporex) against Culex pipiens (Culicidae) mosquito larvae was developed. The main thrust of the research was to develop a simple method for preparing controlled-release formulations by means of an extrusion technique in combination with a supplementary coating and to study the release characteristics and effectiveness of the formulations. A series of formulations were prepared with low-density polyethylene (LDPE 600) for the matrix and with polyurea or one of four types of polyurethane for the coating. The rate of release of the active material from the controlled-release formulations was determined in an in vitro dissolution system. The biological activity of the controlled-release formulations was tested in vivo against C. pipiens larvae.
Liliana Schwartz - One of the best experts on this subject based on the ideXlab platform.
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controlled release systems for the Insect Growth regulator pyriproxyfen
Journal of Agricultural and Food Chemistry, 2003Co-Authors: Liliana Schwartz, David Wolf, Arie Markus, Slawomir Wybraniec, Zeev WiesmanAbstract:A simple technique was developed for the production of controlled-release systems (CRSs) for pyriproxyfen, an Insect Growth regulator active against the larvae of Culex pipiens, the most common species of mosquito found in developed countries. The CRSs consisted of a spongy core material encapsulated in a coating of a polyurethane or polyurea hydrogel, into which the active ingredient had been incorporated. The coating also included a surfactant to improve the low solubility in water of pyriproxyfen. The light core material enabled the CRS to float on the water surface, where the mosquitoe larvae are found. The type and amount of the polymeric coating and the amount of surfactant influenced the release profiles into water of the active ingredient. The release profiles of the CRSs were adjusted to the life cycle of the C. pipiens mosquito in order to obtain their optimal activity on the eighth day, which corresponds to the time of larval maturity. Keywords: Controlled-release systems; Insect Growth regulat...
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Controlled-release system for the Insect Growth regulator cyromazine
Clean Products and Processes, 2001Co-Authors: Liliana Schwartz, David Wolf, Arie Markus, Zeev Wiesman, Slawomir WybraniecAbstract:An encapsulation system designed to give long-lasting effectiveness of the Insect Growth regulator (IGR) cyromazine (Neporex) against Culex pipiens (Culicidae) mosquito larvae was developed. The main thrust of the research was to develop a simple method for preparing controlled-release formulations by means of an extrusion technique in combination with a supplementary coating and to study the release characteristics and effectiveness of the formulations. A series of formulations were prepared with low-density polyethylene (LDPE 600) for the matrix and with polyurea or one of four types of polyurethane for the coating. The rate of release of the active material from the controlled-release formulations was determined in an in vitro dissolution system. The biological activity of the controlled-release formulations was tested in vivo against C. pipiens larvae.
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Controlled-release system for the Insect Growth regulator cyromazine
Clean Products and Processes, 2001Co-Authors: Liliana Schwartz, David Wolf, Arie Markus, Zeev Wiesman, Slawomir WybraniecAbstract:An encapsulation system designed to give long-lasting effectiveness of the Insect Growth regulator (IGR) cyromazine (Neporex) against Culex pipiens (Culicidae) mosquito larvae was developed. The main thrust of the research was to develop a simple method for preparing controlled-release formulations by means of an extrusion technique in combination with a supplementary coating and to study the release characteristics and effectiveness of the formulations. A series of formulations were prepared with low-density polyethylene (LDPE 600) for the matrix and with polyurea or one of four types of polyurethane for the coating. The rate of release of the active material from the controlled-release formulations was determined in an in vitro dissolution system. The biological activity of the controlled-release formulations was tested in vivo against C. pipiens larvae.
Slawomir Wybraniec - One of the best experts on this subject based on the ideXlab platform.
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controlled release systems for the Insect Growth regulator pyriproxyfen
Journal of Agricultural and Food Chemistry, 2003Co-Authors: Liliana Schwartz, David Wolf, Arie Markus, Slawomir Wybraniec, Zeev WiesmanAbstract:A simple technique was developed for the production of controlled-release systems (CRSs) for pyriproxyfen, an Insect Growth regulator active against the larvae of Culex pipiens, the most common species of mosquito found in developed countries. The CRSs consisted of a spongy core material encapsulated in a coating of a polyurethane or polyurea hydrogel, into which the active ingredient had been incorporated. The coating also included a surfactant to improve the low solubility in water of pyriproxyfen. The light core material enabled the CRS to float on the water surface, where the mosquitoe larvae are found. The type and amount of the polymeric coating and the amount of surfactant influenced the release profiles into water of the active ingredient. The release profiles of the CRSs were adjusted to the life cycle of the C. pipiens mosquito in order to obtain their optimal activity on the eighth day, which corresponds to the time of larval maturity. Keywords: Controlled-release systems; Insect Growth regulat...
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Controlled-release system for the Insect Growth regulator cyromazine
Clean Products and Processes, 2001Co-Authors: Liliana Schwartz, David Wolf, Arie Markus, Zeev Wiesman, Slawomir WybraniecAbstract:An encapsulation system designed to give long-lasting effectiveness of the Insect Growth regulator (IGR) cyromazine (Neporex) against Culex pipiens (Culicidae) mosquito larvae was developed. The main thrust of the research was to develop a simple method for preparing controlled-release formulations by means of an extrusion technique in combination with a supplementary coating and to study the release characteristics and effectiveness of the formulations. A series of formulations were prepared with low-density polyethylene (LDPE 600) for the matrix and with polyurea or one of four types of polyurethane for the coating. The rate of release of the active material from the controlled-release formulations was determined in an in vitro dissolution system. The biological activity of the controlled-release formulations was tested in vivo against C. pipiens larvae.
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Controlled-release system for the Insect Growth regulator cyromazine
Clean Products and Processes, 2001Co-Authors: Liliana Schwartz, David Wolf, Arie Markus, Zeev Wiesman, Slawomir WybraniecAbstract:An encapsulation system designed to give long-lasting effectiveness of the Insect Growth regulator (IGR) cyromazine (Neporex) against Culex pipiens (Culicidae) mosquito larvae was developed. The main thrust of the research was to develop a simple method for preparing controlled-release formulations by means of an extrusion technique in combination with a supplementary coating and to study the release characteristics and effectiveness of the formulations. A series of formulations were prepared with low-density polyethylene (LDPE 600) for the matrix and with polyurea or one of four types of polyurethane for the coating. The rate of release of the active material from the controlled-release formulations was determined in an in vitro dissolution system. The biological activity of the controlled-release formulations was tested in vivo against C. pipiens larvae.
David Wolf - One of the best experts on this subject based on the ideXlab platform.
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controlled release systems for the Insect Growth regulator pyriproxyfen
Journal of Agricultural and Food Chemistry, 2003Co-Authors: Liliana Schwartz, David Wolf, Arie Markus, Slawomir Wybraniec, Zeev WiesmanAbstract:A simple technique was developed for the production of controlled-release systems (CRSs) for pyriproxyfen, an Insect Growth regulator active against the larvae of Culex pipiens, the most common species of mosquito found in developed countries. The CRSs consisted of a spongy core material encapsulated in a coating of a polyurethane or polyurea hydrogel, into which the active ingredient had been incorporated. The coating also included a surfactant to improve the low solubility in water of pyriproxyfen. The light core material enabled the CRS to float on the water surface, where the mosquitoe larvae are found. The type and amount of the polymeric coating and the amount of surfactant influenced the release profiles into water of the active ingredient. The release profiles of the CRSs were adjusted to the life cycle of the C. pipiens mosquito in order to obtain their optimal activity on the eighth day, which corresponds to the time of larval maturity. Keywords: Controlled-release systems; Insect Growth regulat...
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Controlled-release system for the Insect Growth regulator cyromazine
Clean Products and Processes, 2001Co-Authors: Liliana Schwartz, David Wolf, Arie Markus, Zeev Wiesman, Slawomir WybraniecAbstract:An encapsulation system designed to give long-lasting effectiveness of the Insect Growth regulator (IGR) cyromazine (Neporex) against Culex pipiens (Culicidae) mosquito larvae was developed. The main thrust of the research was to develop a simple method for preparing controlled-release formulations by means of an extrusion technique in combination with a supplementary coating and to study the release characteristics and effectiveness of the formulations. A series of formulations were prepared with low-density polyethylene (LDPE 600) for the matrix and with polyurea or one of four types of polyurethane for the coating. The rate of release of the active material from the controlled-release formulations was determined in an in vitro dissolution system. The biological activity of the controlled-release formulations was tested in vivo against C. pipiens larvae.
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Controlled-release system for the Insect Growth regulator cyromazine
Clean Products and Processes, 2001Co-Authors: Liliana Schwartz, David Wolf, Arie Markus, Zeev Wiesman, Slawomir WybraniecAbstract:An encapsulation system designed to give long-lasting effectiveness of the Insect Growth regulator (IGR) cyromazine (Neporex) against Culex pipiens (Culicidae) mosquito larvae was developed. The main thrust of the research was to develop a simple method for preparing controlled-release formulations by means of an extrusion technique in combination with a supplementary coating and to study the release characteristics and effectiveness of the formulations. A series of formulations were prepared with low-density polyethylene (LDPE 600) for the matrix and with polyurea or one of four types of polyurethane for the coating. The rate of release of the active material from the controlled-release formulations was determined in an in vitro dissolution system. The biological activity of the controlled-release formulations was tested in vivo against C. pipiens larvae.
Arie Markus - One of the best experts on this subject based on the ideXlab platform.
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controlled release systems for the Insect Growth regulator pyriproxyfen
Journal of Agricultural and Food Chemistry, 2003Co-Authors: Liliana Schwartz, David Wolf, Arie Markus, Slawomir Wybraniec, Zeev WiesmanAbstract:A simple technique was developed for the production of controlled-release systems (CRSs) for pyriproxyfen, an Insect Growth regulator active against the larvae of Culex pipiens, the most common species of mosquito found in developed countries. The CRSs consisted of a spongy core material encapsulated in a coating of a polyurethane or polyurea hydrogel, into which the active ingredient had been incorporated. The coating also included a surfactant to improve the low solubility in water of pyriproxyfen. The light core material enabled the CRS to float on the water surface, where the mosquitoe larvae are found. The type and amount of the polymeric coating and the amount of surfactant influenced the release profiles into water of the active ingredient. The release profiles of the CRSs were adjusted to the life cycle of the C. pipiens mosquito in order to obtain their optimal activity on the eighth day, which corresponds to the time of larval maturity. Keywords: Controlled-release systems; Insect Growth regulat...
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Controlled-release system for the Insect Growth regulator cyromazine
Clean Products and Processes, 2001Co-Authors: Liliana Schwartz, David Wolf, Arie Markus, Zeev Wiesman, Slawomir WybraniecAbstract:An encapsulation system designed to give long-lasting effectiveness of the Insect Growth regulator (IGR) cyromazine (Neporex) against Culex pipiens (Culicidae) mosquito larvae was developed. The main thrust of the research was to develop a simple method for preparing controlled-release formulations by means of an extrusion technique in combination with a supplementary coating and to study the release characteristics and effectiveness of the formulations. A series of formulations were prepared with low-density polyethylene (LDPE 600) for the matrix and with polyurea or one of four types of polyurethane for the coating. The rate of release of the active material from the controlled-release formulations was determined in an in vitro dissolution system. The biological activity of the controlled-release formulations was tested in vivo against C. pipiens larvae.
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Controlled-release system for the Insect Growth regulator cyromazine
Clean Products and Processes, 2001Co-Authors: Liliana Schwartz, David Wolf, Arie Markus, Zeev Wiesman, Slawomir WybraniecAbstract:An encapsulation system designed to give long-lasting effectiveness of the Insect Growth regulator (IGR) cyromazine (Neporex) against Culex pipiens (Culicidae) mosquito larvae was developed. The main thrust of the research was to develop a simple method for preparing controlled-release formulations by means of an extrusion technique in combination with a supplementary coating and to study the release characteristics and effectiveness of the formulations. A series of formulations were prepared with low-density polyethylene (LDPE 600) for the matrix and with polyurea or one of four types of polyurethane for the coating. The rate of release of the active material from the controlled-release formulations was determined in an in vitro dissolution system. The biological activity of the controlled-release formulations was tested in vivo against C. pipiens larvae.