Method of assaying the susceptibility of biofilms to...

Chemistry: molecular biology and microbiology – Measuring or testing process involving enzymes or... – Involving viable micro-organism

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C435S030000

Reexamination Certificate

active

07041470

ABSTRACT:
Biofilm forming organisms are incubated to form a biofilm on projections by providing a flow of liquid growth medium across projections, the direction of the flow of liquid being repeatedly changed, and an assay made of the resulting biofilm. Biofilm forming organisms are incubated to form a biofilm on projections arranged in rows, with several projections in each row, while providing a flow of liquid growth medium across each row of projections, and an assay made of the resulting biofilm. Sensitivity of the biofilm to antimicrobial reagent may be determined by treating the projections with antimicrobial reagent before carrying out the assay, by treating each row of projections with a different antimicrobial reagent, and each of the projections in a row with a different concentration of antimicrobial reagent.

REFERENCES:
patent: 2956931 (1960-10-01), Goldberg
patent: 3455788 (1969-07-01), Curry et al.
patent: 3691988 (1972-09-01), Clarke
patent: 3745091 (1973-07-01), McCormick
patent: 4115200 (1978-09-01), Anderson
patent: 4162195 (1979-07-01), Solyom et al.
patent: 4432642 (1984-02-01), Tolles
patent: 4483925 (1984-11-01), Noack
patent: 5017342 (1991-05-01), Haberzettl et al.
patent: 5160378 (1992-11-01), Tuunanen et al.
patent: 5217493 (1993-06-01), Raad et al.
patent: 5312813 (1994-05-01), Costerton et al.
patent: 5326533 (1994-07-01), Lee et al.
patent: 5349874 (1994-09-01), Schapira et al.
patent: 5462644 (1995-10-01), Woodson
patent: 5605836 (1997-02-01), Chen et al.
patent: 5861306 (1999-01-01), Pugh et al.
patent: 5928889 (1999-07-01), Bakich et al.
patent: 5981272 (1999-11-01), Chang
patent: 6051423 (2000-04-01), Ceri et al.
patent: 6306646 (2001-10-01), Saad et al.
patent: 6326190 (2001-12-01), Ceri et al.
patent: 6410256 (2002-06-01), Ceri et al.
patent: 6599714 (2003-07-01), Ceri et al.
patent: 1075571 (1980-04-01), None
patent: 18 12 419 (1970-06-01), None
patent: 0 709 678 (1996-05-01), None
patent: 1221896 (1960-06-01), None
patent: 2 548 685 (1985-01-01), None
patent: 90 43229 (1997-02-01), None
patent: 2 739 448 (1997-04-01), None
patent: 1245035 (1971-09-01), None
patent: 1522128 (1978-08-01), None
patent: WO 83/03677 (1983-10-01), None
patent: WO 94/10838 (1994-05-01), None
patent: WO 95/27039 (1995-10-01), None
patent: WO 97/33972 (1997-09-01), None
Ichimiya T. In vitro Effects of Antimicrobial Agents onP. aeruginosaBiofilm Formation. J of Antimicrobial Chemotherapy 34, 331-335, 1994, incomplete.
Megahed S. Studies of Three Oral Bacterial Isolates using Bioluminescence Measurements of ATP. Bull Fac Pharm Cairo Univ 32(3)333-9, 1994.
Larsen T. Development of a Flow Method for Susceptibility Testing of Oral Biofilms in vitro. APMIS 103(5)339-344, 1995.
Ramirez E. Activity of Eight Antibacterial Agents onS. epidermidisAttached to Teflon Catheters. J Medical Microbiology 40(1)43-47, 1994.
Miyake Y. Simple Method for Measuring the Antibiotic Concentration Required to Kill Adherent Bacteria. Chemotherapy 38(5)286-290, 1992.
La Tourette Prosser, B., et al., “Method of Evaluating Effects of Antibiotics on Bacterial Biofilm”,Antimicrob. Agents Chemo.,p. 1502-1506 (1987).
Olson, M.E., et al., “Amdinocillin Treatment of Catheter-Associated Bacteriuria in Rabbits”,J. Infect. Dis.,159(6):1065-1072 (1989).
NUNC brochure, Denmark (1990).
Evans, D.J., et al., “Susceptibility of bacterial biofilms to tobramycin: role of specific growth rate and phase in the division cycle”,J. Antimicrob. Chemo.,25:585-591 (1990).
Hussain,M., et al., “Radiochemical assay to measure the biolfilm produced by coagulase-negativestaphylococcion solid surfaces and its use to quantitate the effects of various antibacterial compounds on the formation of the biofilm”Radiochem. Assay of Staphylococcal Biolfilm,p. 62-69 (1991).
Miyake, Y., et al., “Simple Method for Measuring the Antibiotic Concentration Required to Kill Adherent Bacteria”,Microbiol Chemo.,38:286-290 (1992).
Olson, M.E., et al., “Evaluation of strategies for central venous catheter replacement”,Critical Care Med.,20(6):797-804 (1992).
Richards, G.K., et al., “An assay ofStaphylococcus epidermidisbiofilm responses to therapeutics agents”,Intl. J. Artif. Organs,15(11):777-787 (1993).
Morck, D.W., et al., “Therapeutic Efficacy of Fleroxacin for Eliminating Catheter-Associated Urinary Tract Infection in a Rabbit Model”,Amn. J. Med.,94(suppl 3A):23S-30S (1993).
Morck, D.W., et al., “Comparative evaluation of fleroxacin, ampicillin, trimethoprim-sulfamethoxazole, and gentamicin as treatments of catheter-associated urinary tract infection in a rabbit model”,Intl. J. Antimicrob. Agents,4(suppl 2):S21-S27 (1994).
Darouiche, R.O., et al., “Vancomycin Penetration into Biofilm Covering Infected Prostheses and Effect on Bacteria”,Concise Communications, JID,170:720-723 (1994).
Gjaltema, A., et al., “Heterogeneity of Biofilms in Rotating Annular Reactors: Occurrence, Structure, and Consequences”,Biotech. Bioeng.,44:194-204 (1994).
Zimmerli, W., et al., “Microbiological tests to predict treatment outcome in experimental device-related infections due toStaphylococcus aureus”, J. Antimicrob. Chemo.,33:959-967 (1994).
Johnston, M.D., et al., “Disinfection tests with intact biofilms: combined use of the Modified Robbins Device with impedance detection”,J. Microbiol. Methods,21:15-26 (1995).
Costerton, J.W., et al., “Microbial Biofilms”,Anim. Rev. Microbial.,49:711-745 (1995).
Becton Dickinson Labware, “Innovative Products for Cell Science Research,” 41 pages (see p. 30), undated, no date avail.
Bower, et al., “Influences on the antimicrobial activity of surface-adsorbed nisin,”Journal of Industrial Microbiology,vol. 15, pp. 227-233 (1995).
Costerton, et al., “Mechanism of Electrical Enhancement of Efficacy of Antibiotics in Killing Biofilm Bacteria,”Antimicrobial Agents and Chemotherapy,vol. 38, No. 12, pp. 2803-2804, (Dec. 1994).
Ichimiya, et al., “The Influence of Azithromycin on the Biofilm Formation ofPsuedomonas aeruginosain vitro,”Chemotherapy,vol. 42, pp. 186-191 (1996).
Ichimiya, et al., “In-vitro of antimicrobial agents onPseudomonas aeruginosabiofilm formation,”Journal of Antimicrobail Chemotherapy,vol. 34, pp. 331-341 (1994).
McCoy, et al., “Observations of fouling biofilm formation”,Canadian Journal of Microbiology,vol. 27, Issue 9, pp. 910-917 (Sep. 1981).
Oie, et al., “Efficacy of disinfectants against biofilms cells of methicillin-resistantStaphylococcus aureus,” Microbios,vol. 85, pp. 223-225 (1996).
Patel, et al., “Susceptibility of Biofilms ofStreptococcus sanguisto chlorhexidine gluconate and cetylpyridinium chloride,”Oral Microbiology and Immunology,vol. 11, 2 pages (1996).
Richards, et al., “An assay to measure antibiotic efficacy againstStaphylococus epidermidisBiofilms on Implant Surfaces,”ASAIO Journal,pp. M570-M571 (1994).
Shigeta, et al., “Permeation of Antimicrobial Agents throughPseudomonas aeruginosaBiofilms: A Simple Method,”Chemotherapy,vol. 43, pp. 340-345 (1997).

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Method of assaying the susceptibility of biofilms to... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method of assaying the susceptibility of biofilms to..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of assaying the susceptibility of biofilms to... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3570636

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.