Microencapsulation for the Therapeutic Delivery of Drugs, Live Mammalian and Bacterial Cells, and Other Biopharmaceutics: Current Status and Future Directions

Microencapsulation is a technology that has shown significant promise in biotherapeutics, and other applications. It has been proven useful in the immobilization of drugs, live mammalian and bacterial cells and other cells, and other biopharmaceutics molecules, as it can provide material structuration, protection of the enclosed product, and controlled release of the encapsulated contents, all of which can ensure efficient and safe therapeutic effects. This paper is a comprehensive review of microencapsulation and its latest developments in the field. It provides a comprehensive overview of the technology and primary goals of microencapsulation and discusses various processes and techniques involved in microencapsulation including physical, chemical, physicochemical, and other methods involved. It also summarizes the state-of-the-art successes of microencapsulation, specifically with regard to the encapsulation of microorganisms, mammalian cells, drugs, and other biopharmaceutics in various diseases. The limitations and future directions of microencapsulation technologies are also discussed.

[1]  Micheal Whelehan,et al.  Microencapsulation using vibrating technology , 2011, Journal of microencapsulation.

[2]  J. Gerlach,et al.  Bioartificial liver systems: why, what, whither? , 2008, Regenerative medicine.

[3]  D. Poncelet,et al.  Microencapsulation: fundamentals, methods and applications , 2006 .

[4]  L. Koniaris,et al.  Microencapsulation of Engineered Cells to Deliver Sustained High Circulating Levels of Interleukin-6 to Study Hepatocellular Carcinoma Progression , 2006, Cell transplantation.

[5]  A. Urbanska,et al.  Preparation and in vitro analysis of microencapsulated live Lactobacillus fermentum 11976 for augmentation of feruloyl esterase in the gastrointestinal tract , 2008, Biotechnology and applied biochemistry.

[6]  H. Yagi,et al.  Human Immune Reactivity against Liver Sinusoidal Endothelial Cells from GalTα(1,3)GalT-Deficient Pigs , 2010, Cell transplantation.

[7]  I. Charles,et al.  Microencapsulated iNOS‐expressing cells cause tumor suppression in mice , 2002, FASEB journal : official publication of the Federation of American Societies for Experimental Biology.

[8]  Matthias Rothmund,et al.  Successful allotransplantation of microencapsulated parathyroids in rats , 1994, World Journal of Surgery.

[9]  Alan Smith,et al.  Evaluation of poly(lactic acid) as a biodegradable drug delivery system for parenteral administration , 1986 .

[10]  J. Burdick,et al.  Harnessing Interfacial Phenomena to Program the Release Properties of Hollow Microcapsules , 2012 .

[11]  G. Skjåk-Bræk,et al.  Alginate as immobilization matrix for cells. , 1990, Trends in biotechnology.

[12]  C. Colton,et al.  Implantable biohybrid artificial organs. , 1995, Cell transplantation.

[13]  Aleksandra M Urbanska,et al.  Orally delivered microencapsulated live probiotic formulation lowers serum lipids in hypercholesterolemic hamsters. , 2009, Journal of medicinal food.

[14]  K. Chowdary,et al.  ENCAPSULATION PROTOCOL FOR HIGHLY HYDROPHILIC DRUG USING NON­ BIODEGRADABLE POLYMER , 2011 .

[15]  Nicolas Anton,et al.  Microencapsulation of nanoemulsions: novel Trojan particles for bioactive lipid molecule delivery , 2011, International journal of nanomedicine.

[16]  Wei Shao,et al.  Polymeric nanohybrids and functionalized carbon nanotubes as drug delivery carriers for cancer therapy. , 2011, Advanced drug delivery reviews.

[17]  Jaleh Barar,et al.  PREPARATION OF DICLOFENAC SODIUM COMPOSITE MICROPARTICLES WITH IMPROVED INITIAL RELEASE PROPERTY , 2010 .

[18]  Roderick B. Walker,et al.  The Evaluation of Eudragit Microcapsules Manufactured by Solvent Evaporation Using USP Apparatus 1 , 2009 .

[19]  S. Prakash,et al.  Recent advances in drug delivery: potential and limitations of carbon nanotubes. , 2007, Recent patents on drug delivery & formulation.

[20]  L. Hansen,et al.  Survival of Ca-alginate microencapsulated Bifidobacterium spp. in milk and simulated gastrointestinal conditions , 2002 .

[21]  A. Webster,et al.  Immunosuppression and Other Risk Factors for Lip Cancer after Kidney Transplantation , 2009, Cancer Epidemiology Biomarkers & Prevention.

[22]  S. Prakash,et al.  Preparation and in vitro analysis of microencapsulated genetically engineered E. coli DH5 cells for urea and ammonia removal , 1995, Biotechnology and bioengineering.

[23]  William M. Lee,et al.  Acute liver failure: Summary of a workshop , 2007, Hepatology.

[24]  P. Madan Microencapsulation I. Phase Separation or Coacervation , 1978 .

[25]  A. Göpferich,et al.  Lipid microparticles as a parenteral controlled release device for peptides. , 2001, Journal of controlled release : official journal of the Controlled Release Society.

[26]  Denis Poncelet,et al.  Batch and continuous fluid bed coating – review and state of the art , 2002 .

[27]  Hiroo Iwata,et al.  Bioartificial pancreas microencapsulation and conformal coating of islet of Langerhans. , 2010, Advanced drug delivery reviews.

[28]  Meenakshi Malhotra,et al.  Lactobacillus fermentum NCIMB 5221 has a greater ferulic acid production compared to other ferulic acid esterase producing Lactobacilli , 2012 .

[29]  T. Chang,et al.  New Method for Preparing More Stable Microcapsules for the Entrapment of Genetically Engineered Cells , 2005, Artificial cells, blood substitutes, and immobilization biotechnology.

[30]  Shinji Sakai,et al.  Synthesis of enzymatically-gellable carboxymethylcellulose for biomedical applications. , 2007, Journal of bioscience and bioengineering.

[31]  S. Prakash,et al.  Investigation of Antiangiogenic Tumor Therapy Potential of Microencapsulated HEK293 VEGF165b Producing Cells , 2010, Journal of biomedicine & biotechnology.

[32]  M. Shive,et al.  Biodegradation and biocompatibility of PLA and PLGA microspheres , 1997 .

[33]  Y. Kato,et al.  Application of chitin and chitosan derivatives in the pharmaceutical field. , 2003, Current pharmaceutical biotechnology.

[34]  M. Najimi,et al.  Cell transplantation in the treatment of liver diseases , 2008, Pediatric transplantation.

[35]  Yubing Xie,et al.  In vivo culture of encapsulated endostatin-secreting Chinese hamster ovary cells for systemic tumor inhibition. , 2007, Human gene therapy.

[36]  E. Ryan,et al.  Islet transplantation in seven patients with type 1 diabetes mellitus using a glucocorticoid-free immunosuppressive regimen. , 2000, The New England journal of medicine.

[37]  P. Chang,et al.  Antiangiogenic cancer therapy with microencapsulated cells. , 2003, Human gene therapy.

[38]  P Aebischer,et al.  Continuous delivery of human and mouse erythropoietin in mice by genetically engineered polymer encapsulated myoblasts , 1998, Gene Therapy.

[39]  A. Urbanska,et al.  Erratum to “Suppression of Tumorigenesis: Modulation of Inflammatory Cytokines by Oral Administration of Microencapsulated Probiotic Yogurt Formulation” , 2011, International Journal of Inflammation.

[40]  T. Heo,et al.  Survival of Bifidobacterium longumImmobilized in Calcium Alginate Beads in Simulated Gastric Juices and Bile Salt Solution , 2000, Applied and Environmental Microbiology.

[41]  Scott J. Sherman,et al.  Retinal pigment epithelial cell transplantation could provide trophic support in Parkinson's disease: Results from an in vitro model system , 2006, Experimental Neurology.

[42]  Catherine Tomaro-Duchesneau,et al.  The Gut Microbiota and Human Health with an Emphasis on the Use of Microencapsulated Bacterial Cells , 2011, Journal of biomedicine & biotechnology.

[43]  E. S. Prudêncio,et al.  Microencapsulation of bifidobacteria by spray drying in the presence of prebiotics , 2012 .

[44]  H. Bohidar,et al.  Systematic of alcohol-induced simple coacervation in aqueous gelatin solutions. , 2003, Biomacromolecules.

[45]  Jaleh Barar,et al.  Preparation and Evaluation of Poly (ε-caprolactone) Nanoparticles-in- Microparticles by W/O/W Emulsion Method , 2010 .

[46]  Dominique Shum-Tim,et al.  Microencapsulation to reduce mechanical loss of microspheres: implications in myocardial cell therapy. , 2011, European journal of cardio-thoracic surgery : official journal of the European Association for Cardio-thoracic Surgery.

[47]  Wei Wang,et al.  Microencapsulation using natural polysaccharides for drug delivery and cell implantation , 2006 .

[48]  R. Ocampo-Pérez,et al.  Adsorption of Fluoride from Water Solution on Bone Char , 2007 .

[49]  Georg Bartsch,et al.  Combined antiangiogenic therapy is superior to single inhibitors in a model of renal cell carcinoma. , 2008, The Journal of urology.

[50]  Yao-ting Yu,et al.  Preparation and properties of microencapsulated genetically engineered bacteria cells for oral therapy of uremia , 2004 .

[51]  Anthony Atala,et al.  Continuous release of endostatin from microencapsulated engineered cells for tumor therapy , 2001, Nature Biotechnology.

[52]  I. Zun,et al.  Fluid-bed coater modifications and study of their influence on the coating process of pellets , 2012, Drug development and industrial pharmacy.

[53]  M. Mareel,et al.  Micro‐encapsulation of MDCK‐ras‐e cells prevents loss of E‐cadherin invasion‐suppressor function in vivo , 1994, International journal of cancer.

[54]  J. Anderson,et al.  Effect of fermented milk (yogurt) containing Lactobacillus acidophilus L1 on serum cholesterol in hypercholesterolemic humans. , 1999, Journal of the American College of Nutrition.

[55]  C. Lacroix,et al.  Immobilized cell technologies for the dairy industry. , 1994, Critical reviews in biotechnology.

[56]  C. Remuñán-López,et al.  Microencapsulated chitosan nanoparticles for lung protein delivery. , 2005, European journal of pharmaceutical sciences : official journal of the European Federation for Pharmaceutical Sciences.

[57]  A. Sun,et al.  Microencapsulated hepatocytes: an in vitro and in vivo study. , 1987, Biomaterials, artificial cells, and artificial organs.

[58]  Xu Xue-ming,et al.  Microencapsulation of Ginger Oil in 18DE Maltodextrin/Whey Protein Isolate , 2011 .

[59]  Zhongli Pan,et al.  A Novel Method for Microencapsulation of Protein Using High-voltage Electrostatic Field System , 2006 .

[60]  M. Manfait,et al.  Fourier transform infrared spectroscopic studies of human serum albumin microcapsules prepared by interfacial cross-linking with terephthaloylchloride: influence of polycondensation pH on spectra and relation with microcapsule morphology and size. , 1991, Journal of pharmaceutical sciences.

[61]  J. Benoit,et al.  Microencapsulation of protein particles within lipids using a novel supercritical fluid process. , 2002, International journal of pharmaceutics.

[62]  Luis Padrela,et al.  Formation of indomethacin-saccharin cocrystals using supercritical fluid technology. , 2009, European journal of pharmaceutical sciences : official journal of the European Federation for Pharmaceutical Sciences.

[63]  T. Chang,et al.  Microencapsulated genetically engineered live E. coli DH5 cells administered orally to maintain normal plasma urea level in uremic rats , 1996, Nature Medicine.

[64]  M. V. von Herrath,et al.  Type 1 diabetes: etiology, immunology, and therapeutic strategies. , 2011, Physiological reviews.

[65]  J. Xiang,et al.  Significant tumor regression induced by microencapsulation of recombinant tumor cells secreting fusion protein. , 2005, Cancer biotherapy & radiopharmaceuticals.

[66]  G Nelson,et al.  Microencapsulation in yeast cells. , 1998, Journal of microencapsulation.

[67]  Satya Prakash,et al.  Microencapsulated bile salt hydrolase producing Lactobacillus reuteri for oral targeted delivery in the gastrointestinal tract , 2008, Applied Microbiology and Biotechnology.

[68]  Olivier Rouaud,et al.  Microencapsulation by solvent evaporation: state of the art for process engineering approaches. , 2008, International journal of pharmaceutics.

[69]  Hongmei Chen,et al.  Preparation and In Vitro Analysis of Microcapsule Thalidomide Formulation for Targeted Suppression of TNF-α , 2006, Drug delivery.

[70]  Y. Shindo,et al.  Gelation of gellan gum aqueous solutions studied by polarization modulation spectroscopy , 2004, Biopolymers.

[71]  M. Goosen,et al.  Prolonged survival of transplanted islets of Langerhans encapsulated in a biocompatible membrane. , 1984, Biochimica et biophysica acta.

[72]  Dwaine F Emerich,et al.  Intracerebral Transplantation of Porcine Choroid Plexus Provides Structural and Functional Neuroprotection in a Rodent Model of Stroke , 2004, Stroke.

[73]  P. Ajayan,et al.  Microcapsule carbon nanotube devices for therapeutic applications , 2009, Nanotechnology.

[74]  Yi Yan Yang,et al.  Effect of preparation temperature on the characteristics and release profiles of PLGA microspheres containing protein fabricated by double-emulsion solvent extraction/evaporation method. , 2000, Journal of controlled release : official journal of the Controlled Release Society.

[75]  K. Lewin,et al.  Restoration of liver function in gunn rats without immunosuppression using transplanted microencapsulated hepatocytes , 1990, Hepatology.

[76]  M Rothmund,et al.  Parathyroid allotransplantation without immunosuppression , 1997, The Lancet.

[77]  F A Garofalo,et al.  Immobilization of P. pictorum in open pore agar, alginate and polylysine-alginate microcapsules for serum cholesterol depletion. , 1989, Biomaterials, artificial cells, and artificial organs.

[78]  Xiaojun Ma,et al.  Treatment of acute hepatic failure in mice by transplantation of mixed microencapsulation of rat hepatocytes and transgenic human fetal liver stromal cells. , 2010, Tissue engineering. Part C, Methods.

[79]  Thomas Rades,et al.  Silica-lipid hybrid (SLH) microcapsules: a novel oral delivery system for poorly soluble drugs. , 2009, Journal of controlled release : official journal of the Controlled Release Society.

[80]  S. Colowick,et al.  Methods in Enzymology , Vol , 1966 .

[81]  C. Remuñán-López,et al.  Microspheres containing lipid/chitosan nanoparticles complexes for pulmonary delivery of therapeutic proteins. , 2008, European journal of pharmaceutics and biopharmaceutics : official journal of Arbeitsgemeinschaft fur Pharmazeutische Verfahrenstechnik e.V.

[82]  P. Brunetti,et al.  Standard technical procedures for microencapsulation of human islets for graft into nonimmunosuppressed patients with type 1 diabetes mellitus. , 2006, Transplantation proceedings.

[83]  G. Abouna Organ shortage crisis: problems and possible solutions. , 2008, Transplantation proceedings.

[84]  Emmanouil D Karagiannis,et al.  Therapeutic effect of orally administered microencapsulated oxaliplatin for colorectal cancer. , 2012, Biomaterials.

[85]  Xiaojun Ma,et al.  Preparation and evaluation of floating-bioadhesive microparticles containing clarithromycin for the eradication of Helicobacter pylori , 2006 .

[86]  Johnny C. Hong,et al.  Vascular complications of orthotopic liver transplantation: experience in more than 4,200 patients. , 2009, Journal of the American College of Surgeons.

[87]  N. Sottos,et al.  In situ poly(urea-formaldehyde) microencapsulation of dicyclopentadiene , 2003 .

[88]  P. Chang,et al.  Enhancement of myoblast microencapsulation for gene therapy. , 2006, Journal of biomedical materials research. Part B, Applied biomaterials.

[89]  M. Andry,et al.  Microcapsules prepared through interfacial cross-linking of starch derivatives , 1990 .

[90]  M. Yliperttula,et al.  Alginate-based microencapsulation of retinal pigment epithelial cell line for cell therapy. , 2008, Biomaterials.

[91]  S. Yuk,et al.  Microencapsulation of lipid nanoparticles containing lipophilic drug , 2003, Journal of microencapsulation.

[92]  L. Brannon-Peppas,et al.  Controlled release in the food and cosmetics industries , 1993 .

[93]  T. Chang,et al.  In vitro and in vivo Uric Acid Lowering by Artificial Cells Containing Microencapsulated Genetically Engineered E. coli DH5 Cells , 2000, The International journal of artificial organs.

[94]  S. Stoyanov,et al.  Triggered cell release from shellac–cell composite microcapsules , 2012 .

[95]  G. Reach,et al.  Immunoisolation of pancreatic B cells by microencapsulation. An in vitro study. , 1985, Diabetologia.

[96]  Paul W. Morgan,et al.  Interfacial polycondensation. I. , 1959 .

[97]  S. Prakash,et al.  Probiotic Ferulic Acid Esterase Active Lactobacillus fermentum NCIMB 5221 APA Microcapsules for Oral Delivery: Preparation and in Vitro Characterization , 2012, Pharmaceuticals.

[98]  R. Arshady,et al.  Microcapsules for food. , 1993, Journal of microencapsulation.

[99]  S. Prakash,et al.  Preparation and characterization of novel polymeric microcapsules for live cell encapsulation and therapy , 2007, Cell Biochemistry and Biophysics.

[100]  H Zhang,et al.  Transplantation of microencapsulated genetically modified xenogeneic cells augments angiogenesis and improves heart function , 2008, Gene Therapy.

[101]  L. Williams,et al.  Safety and Viability of Microencapsulated Human Islets Transplanted Into Diabetic Humans , 2009, Diabetes Care.

[102]  Robert Saller,et al.  Microencapsulation of genetically engineered cells for cancer therapy. , 2002, Methods in enzymology.

[103]  R. Arshady,et al.  Preparation of microspheres and microcapsules by interfacial polycondensation techniques. , 1989, Journal of microencapsulation.

[104]  Sang-Do Yeo,et al.  Formation of polymer particles with supercritical fluids: A review , 2005 .

[105]  François Guillemin,et al.  Polyelectrolyte microcapsules with entrapped multicellular tumor spheroids as a novel tool to study the effects of photodynamic therapy. , 2011, Journal of biomedical materials research. Part B, Applied biomaterials.

[106]  Minmin Shi,et al.  Microencapsulated tumor assay: evaluation of the nude mouse model of pancreatic cancer. , 2012, World journal of gastroenterology.

[107]  Satya Prakash,et al.  Live encapsulated Lactobacillus acidophilus cells in yogurt for therapeutic oral delivery: preparation and in vitro analysis of alginate-chitosan microcapsules. , 2007, Canadian journal of physiology and pharmacology.

[108]  Xiaojun Ma,et al.  Inhibition of tumor growth in mice by endostatin derived from abdominal transplanted encapsulated cells. , 2007, Acta biochimica et biophysica Sinica.

[109]  A. Urbanska,et al.  Investigation of a New Microcapsule Membrane Combining Alginate, Chitosan, Polyethylene Glycol and Poly-L-Lysine for Cell Transplantation Applications , 2005 .

[110]  Shelley R. Winn,et al.  Transplantation of neural tissue in polymer capsules , 1988, Brain Research.

[111]  M. Vivarelli,et al.  Effect of Different Immunosuppressive Schedules on Recurrence-Free Survival After Liver Transplantation for Hepatocellular Carcinoma , 2010, Transplantation.

[112]  Scott R White,et al.  Programmable microcapsules from self-immolative polymers. , 2010, Journal of the American Chemical Society.

[113]  R. Timpl,et al.  Local endostatin treatment of gliomas administered by microencapsulated producer cells , 2001, Nature Biotechnology.

[114]  F. Lim,et al.  Microencapsulated islets as bioartificial endocrine pancreas. , 1980, Science.

[115]  Riccardo Calafiore,et al.  Alginate microcapsules for pancreatic islet cell graft immunoprotection: struggle and progress towards the final cure for type 1 diabetes mellitus , 2003, Expert opinion on biological therapy.

[116]  T. Chang,et al.  The viability and regeneration of artificial cell microencapsulated rat hepatocyte xenograft transplants in mice. , 1988, Biomaterials, artificial cells, and artificial organs.

[117]  R. Mulligan,et al.  Cell encapsulation technology as a novel strategy for human anti-tumor immunotherapy , 2011, Cancer Gene Therapy.

[118]  J. Hilborn,et al.  Alginate hydrogel microspheres and microcapsules prepared by spinning disk atomization. , 2000, Biotechnology and bioengineering.

[119]  V. Karathanos,et al.  Microencapsulation of curcumin in cells of Saccharomyces cerevisiae , 2011 .

[120]  Tatsuya Kin,et al.  Indefinite islet protection from autoimmune destruction in nonobese diabetic mice by agarose microencapsulation without immunosuppression1 , 2003, Transplantation.

[121]  Philippe Morel,et al.  Improved Survival of Fulminant Liver Failure by Transplantation of Microencapsulated Cryopreserved Porcine Hepatocytes in Mice , 2009, Cell transplantation.

[122]  A. Lamprecht,et al.  Effect of the microencapsulation of nanoparticles on the reduction of burst release. , 2007, International journal of pharmaceutics.

[123]  Hua Yang,et al.  Stabilization and encapsulation of photosensitive resveratrol within yeast cell. , 2008, International journal of pharmaceutics.

[124]  J. Fei,et al.  pH- and redox-responsive polysaccharide-based microcapsules with autofluorescence for biomedical applications. , 2012, Chemistry.

[125]  Wasfy M Obeidat,et al.  Recent patents review in microencapsulation of pharmaceuticals using the emulsion solvent removal methods. , 2009, Recent patents on drug delivery & formulation.

[126]  Patrick Aebischer,et al.  Delivery of erythropoietin by encapsulated myoblasts in a genetic model of severe anemia. , 2002, Kidney international.

[127]  K. Scanlon Cancer gene therapy: challenges and opportunities. , 2004, Anticancer research.

[128]  G P Martin,et al.  Potential use of microencapsulation for sustained drug delivery to the respiratory tract. , 1994, Journal of aerosol medicine : the official journal of the International Society for Aerosols in Medicine.

[129]  Nicola Elvassore,et al.  Effective protein release from PEG/PLA nano-particles produced by compressed gas anti-solvent precipitation techniques. , 2004, Journal of controlled release : official journal of the Controlled Release Society.

[130]  Satya Prakash,et al.  Free and Microencapsulated Lactobacillus and Effects of Metabolic Induction on Urea Removal , 2003, Artificial cells, blood substitutes, and immobilization biotechnology.

[131]  Satya Prakash,et al.  Cholesterol-lowering efficacy of a microencapsulated bile salt hydrolase-active Lactobacillus reuteri NCIMB 30242 yoghurt formulation in hypercholesterolaemic adults , 2011, British Journal of Nutrition.

[132]  C. Sayes,et al.  Mitigation of Quantum Dot Cytotoxicity by Microencapsulation , 2011, PloS one.

[133]  H. Shivakumar,et al.  Microencapsulation: A promising technique for controlled drug delivery , 2010, Research in pharmaceutical sciences.

[134]  C. Bokemeyer,et al.  Antiangiogenic treatment with endostatin inhibits progression of AML in vivo , 2005, Leukemia.

[135]  Vincenzo Bisceglie,et al.  Über die antineoplastische Immunität , 1934, Zeitschrift für Krebsforschung.

[136]  Wei Ouyang,et al.  Microencapsulated Genetically Engineered Lactobacillus plantarum 80 (pCBH1) for Bile Acid Deconjugation and Its Implication in Lowering Cholesterol , 2004, Journal of biomedicine & biotechnology.

[137]  C. Mulligan,et al.  Encapsulation in the food industry: a review. , 1999, International journal of food sciences and nutrition.

[138]  N. Akhtar,et al.  Pharmaceutical Microencapsulation Technology for Development of Controlled Release Drug Delivery systems , 2011 .

[139]  Tae Gwan Park,et al.  Water-free microencapsulation of proteins within PLGA microparticles by spray drying using PEG-assisted protein solubilization technique in organic solvent. , 2008, European journal of pharmaceutics and biopharmaceutics : official journal of Arbeitsgemeinschaft fur Pharmazeutische Verfahrenstechnik e.V.

[140]  R. Rossi,et al.  Allotransplant of microencapsulated parathyroid tissue in severe postsurgical hypoparathyroidism: a case report. , 2009, Transplantation proceedings.

[141]  C. Buchanan,et al.  Live encapsulated porcine islets from a type 1 diabetic patient 9.5 yr after xenotransplantation , 2007, Xenotransplantation.

[142]  Satya Prakash,et al.  Estimation of the Potential Antitumor Activity of Microencapsulated Lactobacillus acidophilus Yogurt Formulation in the Attenuation of Tumorigenesis in Apc(Min/+) Mice , 2009, Digestive Diseases and Sciences.

[143]  S. Bonner-Weir,et al.  Survival and maturation of microencapsulated porcine neonatal pancreatic cell clusters transplanted into immunocompetent diabetic mice. , 2003, Diabetes.

[144]  P. A. Haas,et al.  Formation of uniform liquid drops by application of vibration to laminar jets , 1992 .

[145]  Steven P Schwendeman,et al.  Principles of encapsulating hydrophobic drugs in PLA/PLGA microparticles. , 2008, International journal of pharmaceutics.

[146]  Xiaojun Ma,et al.  In Vitro and in Vivo characterization of alginate-chitosan-alginate artificial microcapsules for therapeutic oral delivery of live bacterial cells. , 2008, Journal of bioscience and bioengineering.

[147]  Peng Zhang,et al.  Human Fetal Liver Stromal Cells That Overexpress bFGF Support Growth and Maintenance of Human Embryonic Stem Cells , 2010, PloS one.

[148]  Satya Prakash,et al.  Oral Microencapsulated Live Saccharomyces cerevisiae Cells for Use in Renal Failure Uremia: Preparation and In Vivo Analysis , 2010, Journal of biomedicine & biotechnology.

[149]  T A Louis,et al.  A meta-analysis of immunosuppression withdrawal trials in renal transplantation. , 2000, Journal of the American Society of Nephrology : JASN.

[150]  Ming-hua Li,et al.  Transplantation of microencapsulated umbilical-cord-blood-derived hepatic-like cells for treatment of hepatic failure. , 2011, World journal of gastroenterology.

[151]  Ying Xiao,et al.  Encapsulated Bifidobacteria reduced bacterial translocation in rats following hemorrhagic shock and resuscitation. , 2007, Nutrition.

[152]  Hitesh Patel,et al.  Ionotropic Gelation Technique For Microencapsulation Of Antihypertensive Drug , 2010 .

[153]  D. Grana,et al.  Pig pancreatic islet transplantation into spontaneously diabetic dogs. , 2009, Transplantation proceedings.