Abstract: The apparatus includes a fermentation tank of a type including a cylindrical tank shell and a downwardly-directed frustoconical tank bottom affixed to a bottom edge of the cylindrical tank shell. An upwardly-directed frustoconical support positioned below the cylindrical tank is configured to have a centrally located aperture for receiving and supporting a lower portion of the tank bottom. The tank includes an outer cylindrical sleeve configured to receive the cylindrical tank shell, tank bottom, and support to form a tank assembly, wherein the assembly includes an annular gap between the tank shell and sleeve, and a cavity between the sleeve, tank bottom, and support. Rigid foam insulation is then filled within the annular gap and cavity to provide structural rigidity to the assembly as well as insulative properties to maintain the stored liquid at a desired temperature.
Abstract: A citron rice wine and its manufacturing method includes a citron sugar pickling step; a citron extract finishing step; a citron crude liquid mixing step; a rice wine mixing step; a citron skin removing step; a vacuum ripening step; and a rice wine extracting step. There is further provided a tapioca mixing step wherein a tapioca citron rice wine is finished using the citron rice wine which has been manufactured in the rice wine extracting step. With respect to the extracted citron rice wine, the following steps are performed in a base finishing step: a citron rice wine precipitating step; a refined rice wine extracting step; a distilled liquor mixing step; and a carbonated water mixing step. In a cocktail finishing step, there are provided the steps of a cold base finishing step for cooling the base, an apple mint adding step; a base adding and mixing step; a tapioca mixing step; a carbonated water adding step; and a lime/lemon mixing step.
Abstract: The invention relates to a reactor tank designed as a disposable element having a cover and/or sensor patches readable opto-electronically fixed in the interior, a reactor comprising the reactor tank and reactor tank receiving peripherals, the same comprising a reactor tank holder and optionally an opto-electronic measuring system for reading sensor patches, wherein the reactor tank holder is coupled to a drive unit for generating a rotating-oscillation motion of the reactor tank around the central vertical axis thereof, and also the use of this device for culturing cells and/or microorganisms.
Type:
Application
Filed:
September 13, 2013
Publication date:
August 6, 2015
Applicant:
BAYER TECHNOLOGY SERVICES GMBH
Inventors:
Joerg Kauling, Annette Waldhelm, Helmut Brod, Verena Herrmann, Stefanie Jacob
Abstract: The present invention relates to a fluidic device that can be used for the analysis of surface-dwelling multicellular layers, some of which comprise biofilm and can be referred to as biofilms, and their formation under controlled dynamic conditions. More particularly, the surface in the fluidic chamber on which the multicellular layer is grown is detachable and/or removable from the fluidic chamber, thereby providing a highly versatile device.
Type:
Application
Filed:
September 6, 2013
Publication date:
August 6, 2015
Inventors:
Thomas Vanzieleghem, Jacques Mahillon, Hervé Jeanmart, Simon Degand, Christine Dupont, Sandy Ladeuze
Abstract: Provided is a cell culturing vessel for holding and culturing cells. It has a first vessel that stores a culture medium and cells or only a culture medium, a second vessel that is placed above the first vessel and stores a culture medium and cells or only a culture medium, a main vessel that holds the first vessel and houses the second vessel, and a lid member that engages with the main vessel. The main vessel has a pressing member that fixes and holds the first vessel in the main vessel and the second vessel is eccentrically held in the first vessel by the pressing member.
Abstract: Methods, apparatus, systems and articles of manufacture are disclosed herein to implement flexible bioreactor control systems. An example apparatus disclosed herein includes a processor coupled to a memory, the processor programmed to determine whether the map value included in the process task object is a valid map value, the process task object to correspond to a task executed by a bioreactor, a control device or a measurement device of the bioreactor control system configuration, in response to determining the map value is a valid map value, decode the map value to identify the source location of a first input of the process task object, pull a value from the source location to update the input value of the process task object, and facilitate execution of the process task with the input value.
Abstract: A method and apparatus for billing entities for use of a medical device, which relates to the processing of regenerative cells to facilitate at least one of hard and soft tissue formation, are described. When an operator uses the medical device, a corresponding charge is determined. Billing for usage of the medical device is performed on a periodic or per-use basis. Communication over a network facilitates remote management and servicing of the medical device. Support is provided for automatic ordering of supplies consumed by the medical device.
Abstract: A centrifuge device is provided for the sizing and separation of constituents of a biologic mixture, e.g., adipose tissue. The device provides for the mechanical breaking down of the fibrous structure in the tissue by centrifugation causing the tissue to pass through a mesh element, or a sizing helix, or an extrusion element, whereupon the material is reduced to a slurry. This processed material may then be separated by centrifugation into its constituents, in order to harvest the fraction containing the multipotent cells. These multipotent cells may be utilized for various medical procedures to stimulate healing and tissue regeneration.
Type:
Application
Filed:
January 30, 2015
Publication date:
August 6, 2015
Inventors:
JOHN E. NASH, WILLIAM T. FISHER, GINO BRADICA
Abstract: The present invention relates to a process for freeze drying a bacteria-containing concentrate. Further, the present invention relates to the freeze dried concentrates per se.
Type:
Application
Filed:
August 20, 2013
Publication date:
August 6, 2015
Applicant:
Chr. Hansen A/S
Inventors:
Tania Ivanova Georgieva, Anders Clausen, Susanne Abrahamsen, Tina Malling Thorsen
Abstract: The present disclosure relates to bioengineering approaches for producing biofuel and, in particular, to the use of a C1 metabolizing microorganism reactor system for converting C1 substrates, such as methane or methanol, into biomass and subsequently into biofuels, bioplastics, or the like.
Type:
Application
Filed:
March 27, 2015
Publication date:
August 6, 2015
Inventors:
Joshua A. Silverman, Sol M. Resnick, Michael Mendez, Renee M. Saville, Sungwon Lee, Luan Nguyen
Abstract: A cell culture medium with high content of choline chloride is provided. The cell culture media further comprise only moderate amounts of amino acids, in particular the amount of glutamine in the cell culture media is limited. The cell culture media can be used for large scale production of polypeptides using cell cultures. The cell culture media with high content of choline chloride are particularly suitable for fed-batch cell culture whereby cell viabilities stay at a higher level for a longer time and high polypeptide titers although limited amounts of amino acids are used.
Type:
Application
Filed:
February 12, 2015
Publication date:
August 6, 2015
Applicant:
Novartis AG
Inventors:
Wolfgang Ernst Gustav Budach, Helene C. Chassin, Kerstin Dorsch
Abstract: A method of manufacturing and/or using a scaffold assembly for stem cell culture and tissue engineering applications is disclosed. The scaffold at least partially mimics a native biological environment by providing biochemical, topographical, mechanical and electrical cues by using an electroactive material. The assembly includes at least one layer of substantially aligned, electrospun polymer fiber having an operative connection for individual voltage application. A method of cell tissue engineering and/or stem cell differentiation that uses the assembly seeded with a sample of cells suspended in cell culture media, incubates and applies voltage to one or more layers, and thus produces cells and/or a tissue construct.
Type:
Application
Filed:
April 13, 2015
Publication date:
August 6, 2015
Inventors:
Lisa A. Scott Carnell, Emilie J. Siochi, Nancy M. Holloway, Kam W. Leong, Karina Kulangara
Abstract: Disclosed is a novel means which enables satisfactory preservation of embryos and fertilized eggs in the non-frozen state for a longer period than conventional means, which novel means also achieves high hatching ability and a high conception rate of the embryos after the preservation. The method for preserving a mammalian embryo(s) or fertilized egg(s) of the present invention comprises immersing a mammalian embryo(s) or fertilized egg(s) in a medium containing 20 to 80% (v/v) serum and 10 to 100 mM Good's buffer, and storing the embryo(s) or fertilized egg(s) at non-freezing low temperature. The preservative solution for a mammalian embryo(s) or fertilized egg(s) of the present invention essentially consists of a medium containing 20 to 80% (v/v) serum and 10 to 100 mM Good's buffer. The Good's buffer is preferably HEPES.
Type:
Application
Filed:
August 21, 2012
Publication date:
August 6, 2015
Applicant:
National Federation of Agricultural Cooperative Associations
Abstract: The present invention provides cell populations that are enriched for mesendoderm and mesoderm, and cell populations that are enriched for endoderm. The cell populations of the invention are useful for generating cells for cell replacement therapy.
Type:
Application
Filed:
February 26, 2015
Publication date:
August 6, 2015
Inventors:
Gordon M. Keller, Valerie Kouskoff, Atsushi Kubo, Hans J. Fehling
Abstract: Methods for preparing a variety of cell (e.g., hepatocyte) preparations and preparations so prepared are described. Uses of such preparations are described. In one embodiment, centrifugal elutriation is used to separate hepatocytes with preferred characteristics. Such hepatocyte preparations may be used for cryopreservation, multiple cryopreservations, in vitro assays, plating and other methods for which preparations of hepatocytes are useful.
Type:
Application
Filed:
July 14, 2014
Publication date:
August 6, 2015
Inventors:
Mark POWERS, Rafal WITEK, Kirsten AMARAL
Abstract: The present invention provides a promoter of differentiation from a hepatic progenitor cell into a hepatocyte, which contains a substance that suppresses expression of Dnmt-1 or a substance that inhibits the function of Dnmt-1 as an active ingredient, and a method of producing a hepatocyte (preferably hepatocyte with high maturity) from a hepatic progenitor cell.
Type:
Application
Filed:
August 9, 2013
Publication date:
August 6, 2015
Applicants:
NATIONAL CANCER CENTER, DS PHARMA BIOMEDICAL CO., LTD.
Abstract: A method for preparing a leukocyte preparation from a leukocyte fraction and a correspondingly prepared or obtainable leukocyte preparation and its use. The method includes: a) sedimenting the leukocyte fraction removing leukocyte supernatant from the sediment, wherein the leukocyte supernatant is collected or remains in a leukocyte container, b) sedimenting the leukocytes in the leukocyte container, c) washing the sediment in the leukocyte container with a saline solution, and d) resuspending the sediment in the leukocyte container in a storage solution.
Abstract: Molecular adjuvants are disclosed comprising an antigen presenting cell-targeting ligand linked to an immunogen, e.g. tumor associated antigens, bacterial or viral antigens. The ligand and the immunogen are linked via a cleavable linker such as a protease-sensitive oligopeptide, to facilitate processing of the adjuvant by the antigen presenting cell. Methods are disclosed for delivery of these molecular adjuvants to patients, resulting in the transduction of activating signals to the targeted antigen presenting cell, thereby enhancing the immune response to the co-delivered immunogen.
Type:
Application
Filed:
March 9, 2015
Publication date:
August 6, 2015
Inventors:
Stefano R. Tarantolo, Anthony A. Floreani, Ralph J. Hauke, John D. Jackson, Sam D. Sanderson, Art J. Heires, Sandra Gunselman
Abstract: A membrane separation device is disclosed along with systems and methods employing the device in blood processing procedures. In one embodiment, a spinning membrane separator is provided in which at least two zones or regions are created in the gap between the spinning membrane and the shell, such that mixing of the fluid between the two regions is inhibited by a radial rib or ridge associated with the spinning membrane that decreases the gap between the spinning membrane and the shell to define two fluid regions, the ridge isolating the fluid in the two regions to minimize mixing between the two. Automated systems and methods are disclosed for separating a unit of previously-collected whole blood into selected blood components, such as concentrated red cells and plasma, for collecting red cells and plasma directly from a donor in a single pass, and for cell washing. Data management systems and methods and priming methods are also disclosed.
Type:
Application
Filed:
March 11, 2013
Publication date:
August 6, 2015
Applicant:
Fenwal, Inc.
Inventors:
Benjamin Kusters, Kyungyoon Min, Christopher Wegener, William H. Cork
Abstract: Disclosed is an industrial preparation of natural killer cells (NKs) and an injection using human allogeneic karyocytes comprising: using umbilical cord blood and peripheral blood from legitimate sources as raw materials, obtaining stem cells by a method for extracting and separating karyocytes, or using Ficoll or percoll density gradient centrifugation to isolate and screen out karyocytes; diluting the above-mentioned karyocytes with cell culture medium, adding interferon, interleukin, CD3 antibody, and human albumin, loading them together into a bioreactor for perfusion culture, and then performing multiplication culture; the passage number of natural killer cells from multiplication culture is no less than 8, and the culture time is no less than 4 weeks; the markers of the natural killer cells obtained after the multiplication culture are CD3?\CD56+, CD16+, CD57+, and CD8+, wherein CD16+/CD56+?15%, CD3?/CD56+?50%, and CD8+/CD57+?8%; then preparing an injection with a certain concentration using the cell su
Abstract: The present invention relates to methods and compositions concerning isolation of proliferating cells. In particular, the invention regards enrichment of stem cells in a mixture of stem cells and non-stem cells, wherein the non-stem cells may be differentiated cells. The invention exploits the non-adherent property of stem cells, as opposed to the adherent property of differentiating cells, by serially passaging the suspended cells in liquid media.
Type:
Application
Filed:
January 7, 2015
Publication date:
August 6, 2015
Applicants:
University of Maryland, Baltimore, The United States of America as Represented by the Department of Verterans Affairs
Inventors:
G. David Trisler, Christopher T. Bever, JR., James E. Goolsby, Bernard M. Pessac
Abstract: The present invention relates to a method for isolating hair follicle mesenchymal stem cells and to the use thereof for therapy and prophylaxis as well as for cosmetic treatments.
Abstract: A highly safe procedure for the preparation of purified stem cell fractions of lipid origin is herein described, in which the use of a specially designed single collecting device, reduces the number of passages and manipulations undergone by stem cell-containing material, reducing to a minimum the risks of contamination, material loss, and inadvertent exchange of samples, and further simplifying the interface and cooperation between personnel recovering the raw material and those expert in stem cell isolation.
Abstract: Disclosed herein are methods, compositions, kits, and agents useful for inducing ? cell maturation, and isolated populations of SC-? cells for use in various applications, such as cell therapy.
Type:
Application
Filed:
April 10, 2015
Publication date:
August 6, 2015
Inventors:
Quinn P. Peterson, Felicia J. Pagliuca, Douglas A. Melton, Jeffrey R. Millman, Michael Saris Segel, Mads Gurtler
Abstract: A method for preparing brain-specific vascular smooth muscle cells comprising the step of: (a) contacting a population of stem cells with a composition comprising a bone morphogenetic protein (BMP) antagonist, a fibroblast growth factor (FGF) and an activin or nodal inhibitor to produce a population of neural crest cells.
Abstract: There is described a process for production of metal-coated virus particles or metallic nanoparticles, said process comprising admixing virus particles with plant material with reducing power and a metal salt, wherein the process can be provided in planta or ex planta and the virus particles aid the production of the metal-coated virus particles or metallic nanoparticles.
Type:
Application
Filed:
September 20, 2013
Publication date:
August 6, 2015
Applicant:
THE JAMES HUTTON INSTITUTE
Inventors:
Andrew John Love, Mikhail Emmanuilovich Talianski, Sean Nicholas Chapman, Jane Shaw
Abstract: Compositions and methods including and related to the Ebola Bundibugyo virus (EboBun) are provided. Compositions are provided that are operable as immunogens to elicit and immune response or protection from EboBun challenge in a subject such as a primate. Inventive methods are directed to detection and treatment of EboBun infection.
Type:
Application
Filed:
April 23, 2015
Publication date:
August 6, 2015
Applicant:
The United States of America, as represented by the Secretary, Department of Health and Human Serv
Inventors:
Jonathan S. Towner, Stuart T. Nichol, James A. Comer, Thomas G. Ksiazek, Pierre E. Rollin
Abstract: Recombinant microbial cells are disclosed herein that comprise (i) a down-regulation of an endogenous polynucleotide sequence encoding Sou2 sorbitol utilization protein, and (ii) a polyunsaturated fatty acid (PUFA) biosynthetic pathway. The down-regulation of the polynucleotide sequence encoding Sou2 sorbitol utilization protein can increase the lipid content of the microbial cells and/or decrease the total amount of sugar alcohols produced by the microbial cells. Also disclosed are methods of using the recombinant microbial cells to produce oil containing omega-3 polyunsaturated fatty acids such as EPA.
Abstract: The present disclosure relates to non-naturally occurring polypeptides useful for preparing Ezetimibe, polynucleotides encoding the polypeptides, and methods of using the polypeptides.
Type:
Application
Filed:
April 22, 2015
Publication date:
August 6, 2015
Inventors:
Michael A. Crowe, Oscar Alvizo, Behnaz Behrouzian, Yong Koy Bong, Steven J. Collier, Anupam Gohel, Jagadeesh Mavinahalli, Naga K. Modukuru, Emily Mundorff, Derek J. Smith, Shiwei Song, Wan Lin Yeo
Abstract: An isolated microorganism that expresses enzymes of the reductive glycine pathway is disclosed. The microorganism is capable of converting formate to pyruvate or glycerate via the formation of glycine and serine. Methods of generating same are further described.
Type:
Application
Filed:
July 29, 2013
Publication date:
August 6, 2015
Inventors:
Arren Bar-Even, Ron Milo, Elad Noor, Oren Yishai
Abstract: The present invention relates to isolated polypeptides having peroxygenase activity, and polynucleotides encoding the polypeptides. The invention also relates to nucleic acid constructs, vectors, and host cells comprising the polynucleotides as well as methods of producing and using the polypeptides. A polynucleotide encoding a peroxygenase was isolated from Pestalotiopsis virgatula.
Type:
Application
Filed:
October 8, 2013
Publication date:
August 6, 2015
Inventors:
Sara Landvik, Lars Henrik Oestergaard, Lisbeth Kalum
Abstract: The invention disclosed herein relates to methods and materials for producing simvastatin and related compounds such as huvastatin. In particular, the disclosure teaches that variants of the LovD acyltransferase polypeptide can be engineered to exhibit properties that facilitate their use in the production of simvastatin and/or huvastatin. The materials and processes disclosed herein are designed so that fermentation facilities currently producing lovastatin can be converted to producing simvastatin and related compounds with minimal modifications.
Abstract: Disclosed is a genetically modified enzyme belonging to glycosyltransferases type of glucansucrase comprising at least one mutation at position 654 of said enzyme, wherein modified enzyme is capable to producing a glucan polymer.
Abstract: The present invention provides steviol glycosyltransferase and a method for producing a steviol glycoside using this enzyme. The present invention provides a transformant transformed with a gene for steviol glycosyltransferase and a method for preparing such a transformant.
Abstract: A modified DNA, polymerase belonging to family B that is not inhibited by dUTP is provided. The modified DNA polymerase comprises modifications of at least two amino acids selected from the group consisting of amino acids corresponding to Y7, P36, and V93 in SEQ ID NO: 1, in the amino acid sequence represented by any one of SEQ ID NOs: 1 to 10.
Abstract: Provided are compositions comprising recombinant DNA polymerases that include amino acid substitutions, insertions, deletions, and/or exogenous features that confer modified properties upon the polymerase for enhanced single molecule sequencing. Such properties include increased resistance to photodamage, and can also include enhanced metal ion coordination, reduced exonuclease activity, reduced reaction rates at one or more steps of the polymerase kinetic cycle, decreased branching fraction, altered cofactor selectivity, increased yield, increased thermostability, increased accuracy, increased speed, increased readlength, and the like. Also provided are nucleic acids which encode the polymerases with the aforementioned phenotypes, as well as methods of using such polymerases to make a DNA or to sequence a DNA template.
Type:
Application
Filed:
November 5, 2014
Publication date:
August 6, 2015
Inventors:
Satwik Kamtekar, Lei Jia, Walter Lee, Erik Miller, Pranav Patel
Abstract: This invention provides for an improved generation of novel nucleic acid modifying enzymes. The improvement is the fusion of a sequence-non-specific nucleic-acid-binding domain to the enzyme in a manner that enhances the ability of the enzyme to bind and catalytically modify the nucleic acid.
Abstract: Disclosed are mutant DNA polymerases having improved extension rates relative to a corresponding, unmodified polymerase. The mutant polymerases are useful in a variety of disclosed primer extension methods. Also disclosed are related compositions, including recombinant nucleic acids, vectors, and host cells, which are useful, e.g., for production of the mutant DNA polymerases.
Type:
Application
Filed:
January 20, 2015
Publication date:
August 6, 2015
Inventors:
Keith A. Bauer, Ellen Fiss, David Harrow Gelfand, Edward S. Smith, Shawn Suko, Thomas W. Myers
Abstract: The present invention provides compositions and methods for modulating G-alpha-q activity and methods of screening of test substances for the ability to modulate G-alpha-q activity.
Type:
Application
Filed:
March 8, 2013
Publication date:
August 6, 2015
Inventors:
John Sondek, Thomas Kendall Harden, Gary Lynn Waldo, Matthew Owen Barrett, Thomas Henry Charpentier
Abstract: The present invention relates to an activator of the calcineurin subunit A?1 isofomi (CnA?1) or of the C-terminal domain of the calcineurin subunit A?1 isofomi (CnA?1) for the production of a medicament for the modulation of myocardial growth without adversely affecting contractile function.
Type:
Application
Filed:
August 16, 2013
Publication date:
August 6, 2015
Applicant:
EMBL EUROPEAN MOLECULAR BIOLOGY LABORATORY
Abstract: The present invention provides chimeric polypeptides comprising myotubularin 1 (MTMI) polypeptides and an internalising moiety, wherein, the moiety can be an antibody, and is preferably monoclonal antibody 3E10, a functional variant or a fragment thereof. One aspect of the present invention provides compositions comprising these chimeric polypeptides together with a pharmaceutically acceptable carrier, and optionally, a further therapeutic agent. Another aspect of the present invention provides methods of treating Myotubular Myopathy comprising administering the polypeptides or compositions comprising the polypeptides to a subject in need.
Abstract: The invention provides variants of the Clostridium thermocellum endoglucanase (CelG) that have improved endoglucanase activity compared to the wild type enzyme. Also provided are related polynucleotides, compositions, vectors, host cells, and methods of use.
Type:
Application
Filed:
March 9, 2015
Publication date:
August 6, 2015
Inventors:
Jie Yang, Xiyun Zhang, Ish K. Dhawan, Andrew Shaw
Abstract: The present invention relates to polypeptides having cellobiohydrolase I activity and polynucleotides having a nucleotide sequence which encodes for the polypeptides. The invention also relates to nucleic acid constructs, vectors, and host cells comprising the nucleic acid constructs as well as methods for producing and using the polypeptides.
Type:
Application
Filed:
March 25, 2015
Publication date:
August 6, 2015
Inventors:
Lene Lange, Wenping Wu, Dominique Aubert, Sara Landvik, Kirk Matthew Schnorr, Ib Groth Clausen
Abstract: The present invention provides ionic liquid-tolerant cellulases and method of producing and using such cellulases. The cellulases of the invention are useful in saccharification reactions using ionic liquid treated biomass.
Type:
Application
Filed:
February 2, 2015
Publication date:
August 6, 2015
Inventors:
John Gladden, Joshua Park, Steven Singer, Blake Simmons, Ken Sale
Abstract: Methods and diagnostic agents for identification of subjects for cancer treatment with an anti-hyaluronan agent, such as a hyaluronan-degrading enzyme, are provided. Diagnostic agents for the detection and quantification of hyaluronan in a biological sample and monitoring cancer treatment with an anti-hyaluronan agent, for example a hyaluronan-degrading enzyme, are provided. Combinations and kits for use in practicing the methods also are provided.
Type:
Application
Filed:
August 14, 2014
Publication date:
August 6, 2015
Inventors:
Ping Jiang, H. Michael Shepard, Lei Huang
Abstract: The present invention relates to proteases having at least 75% identity to a protease derived from Thermoascus aurantiacus and comprises at least one modification in the amino acid sequence thereof. These protease variants have improved thermostability. The invention also relates to DNA encoding these proteases, methods of their production, as well as the use thereof.
Type:
Application
Filed:
April 20, 2015
Publication date:
August 6, 2015
Inventors:
Tomoko Matsui, Allan Noergaard, Thomas Agersten Poulsen, John Matthews
Abstract: It is provided novel peptides from human alpha-enolase, collagen type II and vimentin that bind to types of MHC class II that is associated with rheumatoid arthritis. There is also provided novel therapies and methods for diagnosis of rheumatoid arthritis.
Type:
Application
Filed:
April 5, 2012
Publication date:
August 6, 2015
Inventors:
Lars Klareskog, Vivianne Malmstström, Rikard Holmdahl
Abstract: A variety of methods, devices and compositions are implemented for light-activated molecules. One such method is implemented for generating secondary messengers in a cell. A nucleotide sequence for expressing a chimeric light responsive membrane protein (e.g., rhodopsin) is modified with one or more heterologous receptor subunits {e.g., an adrenergic receptor (alpha1, Beta2)}. The light responsive membrane protein is expressed in a cell for producing a secondary messenger in response to light.
Abstract: Methods, devices and kits for the physical separation of plankton into its component parts utilizing phototactic behavior are described. The methods utilize positive phototactic behavior and negative contrast orientation of the zooplankton for maximal in situ separation of phytoplankton and zooplankton for use in further studies and evaluation of separation efficiency. The devices provide effective conditions for use in the separation of plankton into component parts.