Academic literature on the topic 'Active biological transport'
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Journal articles on the topic "Active biological transport"
Barman, Charles R., Nevin E. Longenecker, and E. Thomas Hibbs. "Active Transport." American Biology Teacher 48, no. 5 (May 1, 1986): 304–6. http://dx.doi.org/10.2307/4448298.
Full textFuliński, A. "Active Transport in Biological Membranes and Stochastic Resonances." Physical Review Letters 79, no. 24 (December 15, 1997): 4926–29. http://dx.doi.org/10.1103/physrevlett.79.4926.
Full textFuliński, A. "Noise-stimulated active transport in biological cell membranes." Physics Letters A 193, no. 3 (October 1994): 267–73. http://dx.doi.org/10.1016/0375-9601(94)90595-9.
Full textHirayama, Hirohumi, Yoshimitsu Okita, and Yuzo Fukuyama. "Optimal control of active transport across a biological membrane." Artificial Life and Robotics 2, no. 1 (March 1998): 33–40. http://dx.doi.org/10.1007/bf02471150.
Full textSun, Ke, Yuejia Chen, Xialin Zhang, Changjian Zhao, and Jia Geng. "A Novel Biological Nanopore for Active DNA Transport and Detection." Biophysical Journal 114, no. 3 (February 2018): 584a. http://dx.doi.org/10.1016/j.bpj.2017.11.3194.
Full textKoloskova, Olesya O., Uliana A. Budanova, Inga C. Shchelik, Igor P. Shilovskii, Musa R. Khaitov, and Yurii L. Sebyakin. "Examination the Properties of Lipopeptide Liposomes Modified by Glycoconjugates." Nano Hybrids and Composites 13 (January 2017): 82–88. http://dx.doi.org/10.4028/www.scientific.net/nhc.13.82.
Full textPetrova, Tatiana V., and Gou Young Koh. "Biological functions of lymphatic vessels." Science 369, no. 6500 (July 9, 2020): eaax4063. http://dx.doi.org/10.1126/science.aax4063.
Full textHofmann, Alan F., Claudio D. Schteingart, and Jan Lillienau. "Biological and Medical Aspects of Active Heal Transport of Bile Acids." Annals of Medicine 23, no. 2 (January 1991): 169–75. http://dx.doi.org/10.3109/07853899109148043.
Full textInesi, Giuseppe. "The mutual binding exclusion mechanism in active transport across biological membranes." Cell Biophysics 11, no. 1 (December 1987): 269–77. http://dx.doi.org/10.1007/bf02797124.
Full textLapointe, Jean-Yves, Marilène P. Gagnon, Dominique G. Gagnon, and Pierre Bissonnette. "Controversy regarding the secondary active water transport hypothesis." Biochemistry and Cell Biology 80, no. 5 (October 1, 2002): 525–33. http://dx.doi.org/10.1139/o02-150.
Full textDissertations / Theses on the topic "Active biological transport"
Hsu, Viktoria R. T. "Ion transport through biological cell membranes : from electro-diffusion to Hodgkin-Huxley via a quasi steady-state approach /." Thesis, Connect to this title online; UW restricted, 2004. http://hdl.handle.net/1773/6755.
Full textZhen, Juan Reith Maarten E. A. "Interaction between the human dopamine transporter and its substrates and blockers." Normal, Ill. : Illinois State University, 2005. http://proquest.umi.com/pqdweb?index=0&did=1221741311&SrchMode=1&sid=2&Fmt=2&VInst=PROD&VType=PQD&RQT=309&VName=PQD&TS=1177270570&clientId=43838.
Full textTitle from title page screen, viewed on April 22, 2007. Dissertation Committee: Maarten E.A. Reith (chair), Hou Tak Cheung, Stephen M. Lasley, Robert L. Preston, Brian J. Wilkinson. Includes bibliographical references and abstract. Also available in print.
Hill, David Brooks. "Changes in the number of molecular motors driving vesicle transport in PC12 /." Electronic thesis, 2003. http://dspace.zsr.wfu.edu/jspui/handle/10339/206.
Full textRheault, Mark Ronald O'Donnell Michael J. "Transport of organic cations and anions by the isolated Malpighian tubules of insects." *McMaster only, 2005.
Find full textThomson, Robert Brent. "Cellular mechanisms of acid/base transport in an insect excretory epithelium." Thesis, University of British Columbia, 1990. http://hdl.handle.net/2429/31306.
Full textScience, Faculty of
Zoology, Department of
Graduate
Bochicchio, Sabrina. "Nanostructured vectors for the transport of active molecules through biological membranes for pharmaceutical and nutraceutical applications." Doctoral thesis, Universita degli studi di Salerno, 2017. http://hdl.handle.net/10556/2598.
Full textPurpose of the PhD thesis was to develop dedicated lipid nanostructured vectors with tailored features (in terms of size, surface charge, load capability, stimuli responsive ability and stability) through the design of novel production processes expressly developed for nutraceutical and therapeutic agents encapsulation. The preliminary performed review of the main processes used for liposomes production have underlined that the majority of the conventional and more innovative methods adopted show a number of drawbacks such as few product volumes in output (directly linked to the impossibility in scaling up the process), high energy consumption, long times of production together with the use of toxic solvents and other process drastic conditions. To the light of these literature findings and with the aim to produce nanostructured vectors through more sustainable processes, two novel techniques, sharing the ultrasound technology as process intensification tool used in particles size reduction and homogenization operations, were designed and developed to respond to the needs of a better process performance, improving its efficiency and cutting down energy consumption. At first, based on the use of ultrasound as alternative energy resource, a solid particles size reduction process was developed and coupled with the bench scale conventional Thin Film Hydration (TFH) method. This technique provides the generation of a lipid film which is formed after solvents evaporation through the use of a rotary evaporator. The dried film is then hydrated, spontaneously producing micrometric vesicles characterized by the presence of several bilayers. Then the method was revisited by adding the ultrasound assisted step developed in order to produce, in a versatile manner, structures with the desired dimension (on micro/nano scale), starting from the micrometric ones. Four are the main sections composing the set-up to apply this innovative protocol: a feeding section, a solvent evaporation section, a liposomes production/homogenization section and a recovery section. In particular, the homogenization section is composed of a 3 mm sonication tip (operative frequency 20 kHz) which acts on micrometric vesicles sample aliquots. Subsequently to the realization of the production bench scale apparatus, the phenomenology connected to the vectors constitution was investigated and a dynamic model able to describe the curvature of a lipid bilayer under the effect of ultrasonic energy was then proposed and tested. In that regard, starting from micrometric vesicles, the ultrasound energy is used to break the lipid bilayer into smaller pieces, then these pieces close themselves in spherical structures producing small vesicles. Moreover the role of several process parameters were also elucidated. Once established its reliability and due its great potential in reducing time spent, without compromising the integrity of the liposomal systems produced (in terms of structure and load), the ultrasound intensification tool was also used for liposomes homogenization operation during vesicles production through a similmicrofluidic approach. As a matter of fact, in order to produce higher volumes of lipid vectors, potentially on production scale, directly with nanometric size, a simil-microfluidic apparatus was expressly designed and fabricated, overcoming the limitations of the small output volumes typical of the conventional bench scale techniques. There are five main sections composing the realized apparatus: a feeding section, a pumping section, a production section, an homogenization section and a recovery section. In particular the homogenization section is composed of a 6 mm sonication tip (operative frequency 20 kHz) directly immersed in the entire hydroalcholic solution containing nanoliposomes. As previously done, the phenomenological aspects involved in vectors constitution were investigated for this new adopted set-up. In particular, the reproduction of the phenomenology connected to the vesicles formation through a microfluidic approach was achieved by the use of constructive expedients (millimetric diameter of tubes, peristaltic pumps, injection needle). Particularly, nanostructured vectors formation 3 happens at the interfaces between the alcoholic and water phases, when they start to interdiffuse in a direction normal to the liquid flow stream; changes in flow conditions result in size variations of the insertion section of the organic phase reflecting on the vesicles dimensional features. In that regards, taking into account that size and size distribution are key parameters determining liposomes performance as carrier systems in both pharmaceutical and nutraceutical applications, a control on the produced nanoliposomes dimensional features was demonstrated by tuning the volumetric flow rates and the lipids concentration process parameters. In particular, it was understood that increasing the ratio between the water volumetric flow rate to the lipids-ethanol volumetric flow rate the liposomes dimensional distibution increases; on contrary, ultrasonic energy enhances the homogenization of the hydroalcoholic bulk and, as expected on the bases of previous studies conducted on smaller volumes, its duty cycle application efficaciously promoted a better vesicles dimensional distribution. This result was also confirmed by working at equal flow rates but at different lipid concentrations. Finally, the developed similmicrofluidic apparatus, working at room conditions and in absence of toxic solvents, makes nanoliposomes production a safe and low cost process, highly productive due to the use of ultrasound which was demonstrated to be a scalable means for process intensification. By using the two developed experimental set-up, several classes of liposomal structures were formulated and produced to respond to specific requests of nutraceutical and pharmaceutical applications. Through the ultrasound assisted tool at first coupled with the conventional THF method and subsequently used as integrant part of the homogenization section of the simil-microfluidic apparatus, different active molecules were successfully encapsulated in lipid nanostructured vectors solving the critical issues linked to their naked administration and transport through biological membranes. In particular, nanoliposomes containing vitamins with different hydrophobicity (α-tocopherol, ergocalciferol, vitamin B12) and ferrous sulfate, with highly interesting features for nutraceutical market, were produced achieving stable loaded nanoliposomes with high encapsulation efficiencies and good dimensional features. In details, for vitamins-nanoliposomes productions, neuter vesicles with micrometric size, ranging from 2.9 μm to 5.7 μm, were produced, obtaining, after sonication in duty cycle, small vesicles in the average range of 40 nm to 51 nm in size. High encapsulation efficiency (e.e.) was obtained in both micrometric vesicles, with a e.e. % of 72.0 ± 00 % for vitamin B12, 95.0 ± 7.07 % for α-tocopherol and 81.5 ± 2.12 % for ergocalciferol, and small vesicles, with an e.e. % of 56.2 ± 8.51 % for vitamin B12, 76.3 ± 14.02 % for αtocopherol and 57.5 ± 13.9 % for ergocalciferol (the higher the vitamin hydrophobicity, the higher the encapsulation efficiency). Finally, a comparison between vitamin B12 load achievable with the developed technique and the vitamin load achievable by breaking unloaded preformed liposomes (conventional approach) showed an increase of encapsulation efficiency in small vesicles from 40% to 56.2 %, confirming the effectiveness of the pointed out technique. Regarding the ferrous sulfate-nanoliposomes, their massive production was possible due to the similmicrofluidic approach with a precise control on particles size and size distribution. In particular, the effect of different weight ratios of iron to the total formulation components (0.06, 0.035, 0.02 and 0.01 iron/total components weight ratio) on the final vesicles encapsulation efficiency was investigated obtaining with the last formulation an high encapsulation efficiency (up to 97%). In general, ferrous sulfate loaded nanoliposomes, negative charged, with good dimensional features (127135 nm for not sonicated and 48-76 nm for sonicated liposomes) were successfully produced through the use of the simil-microfluidic method developed, obtaining an elevated process yield if compared to the classical bench scale techniques (THF and Ethanol Injection). For pharmaceutical purposes, anionic nanoliposomes containing a new synthetized peptide (KRX29) for a not conventional heart failures therapy and new, cutting edge, nucleic acids based therapeutics agents (NABDs), used in gene therapy, were successfully produced. 4 Regarding KRX29-nanoliposomes production, micrometric particles of 7.2-11.7 μm were obtained and sized with the use of the developed ultrasound assisted process thus achieving 22 – 35 nm vesicles. The effect of liposomes charge on both peptide encapsulation and recovery efficiencies was at first studied, showing an higher encapsulation efficiency (about 100%) achieved (both in small and large vesicles) by using the higher charge ratio formulation (13:1 (-/+)). Viceversa, the ability to recover the entrapped peptide was obtained for loaded systems (both in small and large vesicles) at the lower charge ratio formulation (1:1 (-/+)). As the charge ratio, also the peptide concentration showed influence on the liposomes encapsulation efficiency. For NABDs complexes production, at first preliminary experiments in which dsDNA was used to simulate the structure of siRNA molecule were done by testing different dsDNA/DOTAP lipid charge ratio (3:1, 5:1 and 7:1 (+/-)) in order to achieve the higher dsDNA encapsulation efficiency in the smaller carrier possible. DOTAP phospholipid was used due to its positive charge. The performed activities have confirmed the versatility of the ultrasound assisted technique for producing micro (2.2 – 2.9 μm) and nano lipid vectors (28 - 56 nm) encapsulating NABDs. In particular, the charge ratio (+/-) variation from 3:1 to 7:1 (+/-) by changing the amount of positive lipid (DOTAP) used in liposome preparation have allowed to an improved e.e. wich was 64 % and 100 % respectively for small and large vesicles by using the 7:1 (+/-) charge ratio. Starting from these preliminary tests, siRNAs-nanoliposomes complexes were produced for the inhibition of E2F1 protein expression, studied as a potential way to treat colorectal cancer associated to Inflammatory Bowel Diseases. By the TFH/sonication technique nanoliposomes with 33-38 nm range size and 100% siRNA encapsulation efficiency were obtained. The produced loaded nanoliposomes demonstrated a very low excellent uptake in the cultured human colon mucosa tissues. A remarkable anti-E2F1 expression effect after siE2F1-1324-nanoliposome samples transfection has been demonstrated also in a dynamic human model such the colon tissue microenvironment (i.e. an 80.5% reduction of E2F1 expression respect to the basal tissue was achieved in patient 4), a clear tendency to respond in a patient-dependent way was observed. All the achieved results highlight the potentiality of the purposely designed nanoliposomes in deliver, in a controlled manner, different active molecules for both pharmaceutical and nutraceutical purposes. The formulative and the chemical engineering approaches adopted in this thesis for nanostructured vectors production respectively enhance the product quality (nanoparticles with tailored features) and make the process more attractive in terms of improved safety and reduced costs. [edited by Author]
XV n.s. ( XXIX ciclo)
Karpf, Ditte Maria. "Intestinal lipoprotein secretion and lymphatic transport of poorly aqueous soluble compounds /." Kbh. : The Danish University of Pharmaeutical Sciences, Department of Pharmaceutics, 2005. http://www.dfuni.dk/index.php/Previous_PhD_Defences_2005/1735/0/.
Full textIanowski, Juan Pablo O'Donnell Michael J. "Mechanisms of transport of sodium, potassium and chloride in Malpighian tubules of Rhodnius prolixus and Drosophila melanogaster." *McMaster only, 2004.
Find full textHeard, Karen Schray. "ATP Regulation of Erythrocyte Sugar Transport: a Dissertation." eScholarship@UMMS, 1999. http://escholarship.umassmed.edu/gsbs_diss/210.
Full textLee, Sang-Hyun. "The dynamic nuclear transport regulation of NF-kB and IkBS." free to MU campus, to others for purchase, 2002. http://wwwlib.umi.com/cr/mo/fullcit?p3060116.
Full textBooks on the topic "Active biological transport"
P, Rosen Barry, and Silver S, eds. Ion transport in prokaryotes. San Diego: Academic Press, 1987.
Find full textMalbik, Marek. Biological electron transport processes: Their mathematical modelling and computer simulation. Edited by Rubin A. B and Riznichenko Galina Yurevna 1946-. Chichester, West Sussex: Ellis Horwood, 1990.
Find full textDansk hypertensions selskab. Scientific Meeting. Ion transport and hypertension: Proceedings of the Nineteenth Scientific Meeting of the Danish Society of Hypertension, Glostrup County Hospital, Copenhagen, April 26, 1985. Oxford: Published for Medisinsk fysiologisk forenings forlag, Oslo by Blackwell Scientific Publications, 1986.
Find full textMary-Jane, Gething, and Cold Spring Harbor Laboratory, eds. Protein transport and secretion. Cold Spring Harbor, N.Y: Cold Spring Harbor Laboratory, 1985.
Find full textNATO Advanced Research Workshop on Molecular and Cellular Mechanisms of H [plus] transport (1993 York, England). Molecular and cellular mechanisms of H [plus] transport. Berlin: Springer-Verlag, 1994.
Find full textFelix, Bronner, and Peterlik Meinrad, eds. Cellular calcium and phosphate transport in health and disease: Proceedings of the Third International Workshop on Calcium and Phosphate Transport Across Biomembranes, held in Vienna, Austria, March 1-4, 1987. New York: Liss, 1988.
Find full textMalík, Marek. Biological electron transport processes: Their mathematical modelling and computer simulation. Edited by Riznichenko Galina Yurevna 1946- and Rubin A. B. New York: Ellis Horwood, 1990.
Find full textVolotovskiĭ, I. D. Transport ionov v fotoret͡s︡eptornoĭ kletke. Minsk: "Navuka i tėkhnika", 1990.
Find full textADPA/AIAA/ASME/SPIE Conference on Active Materials and Adaptive Structures (1991 Alexandria, Va.). Active materials and adaptive structures: Proceedings of the ADPA/AIAA/ASME/SPIE Conference on Active Materials and Adaptive Structures, 4-8 November 1991, Allexandria, Virginia. Bristol: Institute of Physics Publishing, 1992.
Find full textKosterin, S. A. Transport kalʹt͡s︡ii͡a︡ v gladkikh mysht͡s︡akh. Kiev: Nauk. dumka, 1990.
Find full textBook chapters on the topic "Active biological transport"
Cramer, William A., and David B. Knaff. "Active Transport." In Energy Transduction in Biological Membranes, 406–65. New York, NY: Springer New York, 1990. http://dx.doi.org/10.1007/978-1-4612-3220-9_9.
Full textFriedman, Morton H. "Active Transport." In Principles and Models of Biological Transport, 74–104. Berlin, Heidelberg: Springer Berlin Heidelberg, 1986. http://dx.doi.org/10.1007/978-3-662-02467-6_4.
Full textFriedman, Morton H. "Active Transport." In Principles and Models of Biological Transport, 1–39. New York, NY: Springer New York, 2008. http://dx.doi.org/10.1007/978-0-387-79240-8_5.
Full textKurtz, Stuart, Stephen Mahaney, James Royer, and Janos Simon. "Active transport in biological computing." In DNA Based Computers II, 171–79. Providence, Rhode Island: American Mathematical Society, 1998. http://dx.doi.org/10.1090/dimacs/044/14.
Full textStein, W. D. "The Energetics of Active Transport." In The Enzymes of Biological Membranes, 1–33. Boston, MA: Springer US, 1985. http://dx.doi.org/10.1007/978-1-4684-4601-2_1.
Full textRhee, H. M. "Active Monovalent Cation Transport in Canine Cardiac Tissues." In Water and Ions in Biological Systems, 419–29. Boston, MA: Springer US, 1985. http://dx.doi.org/10.1007/978-1-4899-0424-9_39.
Full textHenderson, P. J. F., and H. L. Kornberg. "The Active Transport of Carbohydrates byEscherichia coli." In Ciba Foundation Symposium 31 - Energy Transformation in Biological Systems, 243–69. Chichester, UK: John Wiley & Sons, Ltd., 2008. http://dx.doi.org/10.1002/9780470720134.ch14.
Full textHitoshi, Hori, Nakagawa Yoshinori, Ojima Hiroshi, Niijima Takehiro, and Terada Hiroshi. "Biologically Active Cyanine Dyes as Probes for the Identification of Active Oxygen Species." In Oxygen Transport to Tissue XIV, 255–60. Boston, MA: Springer US, 1992. http://dx.doi.org/10.1007/978-1-4615-3428-0_27.
Full textPlant, Nick. "Modeling Transport Processes and Their Implications for Chemical Disposition and Action." In Understanding the Dynamics of Biological Systems, 59–82. New York, NY: Springer New York, 2010. http://dx.doi.org/10.1007/978-1-4419-7964-3_4.
Full textOborská-Oplová, Michaela, Ute Fischer, Martin Altvater, and Vikram Govind Panse. "Eukaryotic Ribosome assembly and Nucleocytoplasmic Transport." In Ribosome Biogenesis, 99–126. New York, NY: Springer US, 2022. http://dx.doi.org/10.1007/978-1-0716-2501-9_7.
Full textConference papers on the topic "Active biological transport"
Mobilia, Mauro, Tobias Reichenbach, Hauke Hinsch, Thomas Franosch, and Erwin Frey. "Generic principles of active transport." In Stochastic Models in Biological Sciences. Warsaw: Institute of Mathematics Polish Academy of Sciences, 2008. http://dx.doi.org/10.4064/bc80-0-6.
Full textLimberis, Loren, and Russell J. Stewart. "Biological transport in a microfabricated device: active immunochromatography with motorized antibodies." In Micromachining and Microfabrication, edited by A. Bruno Frazier and Chong H. Ahn. SPIE, 1998. http://dx.doi.org/10.1117/12.322097.
Full textHomison, Chris, and Lisa Mauck Weiland. "Coupled Transport/Hyperelastic Model for High Nastic Materials." In ASME 2005 International Mechanical Engineering Congress and Exposition. ASMEDC, 2005. http://dx.doi.org/10.1115/imece2005-79387.
Full textSundaresan, Vishnu Baba, and Donald J. Leo. "Experimental Investigation for Chemo-Mechanical Actuation Using Biological Transport Mechanisms." In ASME 2005 International Mechanical Engineering Congress and Exposition. ASMEDC, 2005. http://dx.doi.org/10.1115/imece2005-81366.
Full textFreeman, Eric, and Lisa Weiland. "Parametric Studies of a Coupled Transport/Hyperelastic Model for High Energy Density Nastic Materials." In ASME 2007 International Mechanical Engineering Congress and Exposition. ASMEDC, 2007. http://dx.doi.org/10.1115/imece2007-43072.
Full textSundaresan, Vishnu Baba, and Hao Zhang. "Chemomechanical Transduction in Hybrid Bio-Derived Conducting Polymer Actuator." In ASME 2010 Conference on Smart Materials, Adaptive Structures and Intelligent Systems. ASMEDC, 2010. http://dx.doi.org/10.1115/smasis2010-3630.
Full textAlbro, Michael B., Roland Li, Rajan E. Banerjee, Clark T. Hung, and Gerard A. Ateshian. "Direct Validation of Active Solute Transport Induced by Dynamic Loading of Porous Hydrated Media." In ASME 2009 Summer Bioengineering Conference. American Society of Mechanical Engineers, 2009. http://dx.doi.org/10.1115/sbc2009-206028.
Full textGrattoni, Alessandro, Xuewu Liu, Zongxing Wang, Jaskaran Gill, Arturas Ziemys, and Mauro Ferrari. "Electrokinetic Transport of Molecules Through Nanochanneled Membranes." In ASME 2010 First Global Congress on NanoEngineering for Medicine and Biology. ASMEDC, 2010. http://dx.doi.org/10.1115/nemb2010-13236.
Full textAlexeev, Alexander, Rajat Ghosh, Gavin A. Buxton, O. Berk Usta, and Anna C. Balazs. "Using Actuated Cilia to Regulate Motion of Microscopic Particles." In ASME 2010 First Global Congress on NanoEngineering for Medicine and Biology. ASMEDC, 2010. http://dx.doi.org/10.1115/nemb2010-13227.
Full textEscobedo, Carlos, Fatemeh Eftekhari, Jacqueline Ferreira, Paul Wood, Reuven Gordon, Alexandre G. Brolo, and David Sinton. "Nanohole Arrays as Optical and Fluidic Elements for Sensing." In ASME 2008 International Mechanical Engineering Congress and Exposition. ASMEDC, 2008. http://dx.doi.org/10.1115/imece2008-67832.
Full textReports on the topic "Active biological transport"
Barefoot, Susan F., Bonita A. Glatz, Nathan Gollop, and Thomas A. Hughes. Bacteriocin Markers for Propionibacteria Gene Transfer Systems. United States Department of Agriculture, June 2000. http://dx.doi.org/10.32747/2000.7573993.bard.
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