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    Ivan El-Sayed, MD

    TitleProfessor
    SchoolUCSF School of Medicine
    DepartmentOtolaryngology
    Address2233 Post Street
    San Francisco CA 94115
    Phone415-353-2757
    vCardDownload vCard

      Collapse Biography 
      Collapse Education and Training
      University of California, San FranciscoClinical Fellowship Otolaryngology
      Boston UniversityM.D.School of Medicine1996

      Collapse Overview 
      Collapse Overview
      Ivan H. El-Sayed, MD, is Professor of Clinical Otolaryngology and the Director of the Otolaryngology Minimally Invasive Skill Base Surgery program and center in the Department of Otolaryngology – Head and Neck Surgery (OHNS) at the University of California, San Francisco. As of 2015, he has been elected to the North American Skull Base Society Directors Board, and he is recently named the Vice Chair of the American Academy of Otolaryngology Head and Neck Surgery Skull Base Committee. He has also been the Co-Course Director for Stryker-UCSF Resident Skull Base Approaches Course since 2009. Dr. El-Sayed completed his medical degree and internship from Boston University School of Medicine in Massachusetts. He completed his otolaryngology residency from Boston University, followed by a head and neck surgical oncology fellowship from UCSF. He lectures nationally and internationally on various topics related to head and neck oncology.

      Dr. El-Sayed’s clinical focus is skull base surgery and he has developed the minimally invasive program into a nationally recognized program along with his neurosurgical colleagues. The program and center offers a unique capability of providing both endoscopic and open approaches to tailor the approach to the lesion. He has a broad surgical experience having performed over 500 surgical procedures on tumors of the nasal cavity/paranasal sinuses, infratemporal fossa, skull base and pituitary glands in over a decade of experience. He is also interested in the outcomes of research and clinical innovations through novel approach development. His research program goal is to develop 1) novel endoscopic surgical approaches and 2) nanotechnologies as multifunctional theranostic devices for the detection, destruction, and monitoring of oral cancer.

      Dr. El-Sayed has published as first or senior author on topics in literature including skull base repair, endoscopic approaches to the maxilla and infratemporal fossa, surgical planning and approaches to the clivus and craniovertebral junction, as well as lesions of the clivus and sella. He is a reviewer for a variety of scientific journals, and he has contributed to over 50 peer-reviewed articles, 10 book chapters, and 2 patents. As of 2015, his work has been cited over 11,000 times in the literature.

      Specialty:
      Head and Neck Surgical Oncology, Minimally Invasive Skull Base Surgery, Salivary Gland Surgery, Sinus Surgery and Rhinology (tumors)

      Expertise:
      Skull base malignancy, oral cancer, paranasal sinus tumors, parapharyngeal space tumors (schwannomas, carotid body tumor, paraganglioma), oral cancer, parotid gland cancer, advanced skin cancers, tumors of the paranasal sinuses, nasopharynx, clivus, and endoscopic surgery

      Professional Interests:
      Oral cancer, tumors of the salivary gland, neck and jaw and skull base surgery. Skull base surgery is a branch of head and neck oncology. Dr. El-Sayed’s research interests is in developing, techniques to treat oral cancer with nanotechnology and minimally invasive surgical approaches to remove tumors from complex anatomic regions in the skull base which include the parotid gland, the nasal cavity and paranasal sinuses, the parapharyngeal space and infratemporal fossa (which includes mandibular tumors, salivary tumors, schwannomas, carotid body tumor, paragangliomas etc). A variety of tumors occur in the nasal cavity that may require endoscopic surgery or an open surgical approach such as sinonasal squamous cell carcinoma, adenocarcinoma, adenoid cystic cancer, esthesioneuroblastoma, sinonasal undifferentiated carcinoma, chondrosarcoma, osteosarcoma, sinonasal melanoma, recurrent nasopharynx cancers, and others. Several nonmalignant tumors occur in this area that are amenable to endoscopic resections such as juvenile nasopharyngeal angiofibroma and inverted papilloma. Dr. El-Sayed frequently cares for patients requiring multidisciplinary teams such as otologic surgery for tumors involving the temporal bone, and neurological surgery for tumors crossing into the intracranial cavity. Dr. El-Sayed also is expert in closure of defects of the skull base (CSF leaks)

      Education and Training:
      • Medical School: Boston University School of Medicine, MA
      • Internship: Boston Medical Center, MA
      • Residency: Boston Medical Center, MA - Otolaryngology
      • Fellowship: University California San Francisco, CA - Head and Neck Surgical Oncology

      Awards and Honors:
      • 1995 Alpha Omega Alpha Medical Honor Society.
      • 2002 U.S. Patent Office - Spectroscopic Diagnostics for Bacteria in Biologic Samples
      • 2003 University of California, San Francisco Medical Center - Thanks Star Award
      • 2007 Otolaryngology - Head and Neck Surgery, University of California, San Francisco - Outstanding Productive Physician and Surgeon, Certificate of Accomplishment
      • 2007 ScienceWatch- Number 1 cited article in entire field of chemistry. . J Am Chem Soc. 2006 Feb 15;128(6):2115-2120.
      • 2007 Most Accessed Article for the 3rd quarter of 2007 for article, American Chemical Society Publications
      • 2007 Hot Paper- Nano Lett. 2005.
      • 2008 Most Accessed Article for first quarter 2008. J. Phys. Chem. B., 2006.
      • 2008 Editor Seleced Paper. Bioconjug Chem. 2007 Sep-Oct;18(5):1490-7.
      • 2008 Most Cited Author. Top 20 articles cited in Cancer Letters for 2007. Cancer Letters. 2006 Jul 28;239(1):129-35.
      • 2009 Top 25 Hottest Articles Cancer Letters in 2008- 2009: #14. Cancer Letters, Volume 269, Issue 1, September 2008, Pages 57-66
      • 2009 UCSF Academy of Medical Educators - Excellence In Teaching
      • 2010 Guangzhou Medical University - Honorary Professor
      • 2010-2014 Castle Connolly - America's Top Doctors
      • 2012 Number 1 Cited Paper from 2007 through May 2012. NanoToday.
      • 2011-2014 Marine Magazine - 415 Top Doctors
      • 2015 Director’s Board-North American Skull Base Society
      • 2015-2017 Vice Chair American Academy Otolaryngology Head and Neck Surgery Skull Base Committee.


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      Collapse Bibliographic 
      Collapse Publications
      Publications listed below are automatically derived from MEDLINE/PubMed and other sources, which might result in incorrect or missing publications. Researchers can login to make corrections and additions, or contact us for help.
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      1. Anwar M, Yu Y, Glastonbury CM, El-Sayed IH, Yom SS. Delineation of radiation therapy target volumes for cutaneous malignancies involving the ophthalmic nerve (cranial nerve V-1) pathway. Pract Radiat Oncol. 2016 Nov - Dec; 6(6):e277-e281. PMID: 27687189.
        View in: PubMed
      2. Sanmillan JL, Lawton MT, Rincon-Torroella J, El-Sayed IH, Zhang X, Meybodi AT, Gabarros A, Benet A. Assessment of the Endoscopic Endonasal Transclival Approach for Surgical Clipping of Anterior Pontine Anterior-Inferior Cerebellar Artery Aneurysms. World Neurosurg. 2016 May; 89:368-75. PMID: 26852706.
        View in: PubMed
      3. Chan AK, Benet A, Ohya J, Zhang X, Vogel TD, Flis DW, El-Sayed IH, Mummaneni PV. The endoscopic transoral approach to the craniovertebral junction: an anatomical study with a clinical example. Neurosurg Focus. 2016 Feb; 40(2):E11. PMID: 26828880.
        View in: PubMed
      4. Mabray MC, Lillaney P, Sze CH, Losey AD, Yang J, Kondapavulur S, Liu D, Saeed M, Patel A, Cooke D, Jun YW, El-Sayed I, Wilson M, Hetts SW. In Vitro Capture of Small Ferrous Particles with a Magnetic Filtration Device Designed for Intravascular Use with Intraarterial Chemotherapy: Proof-of-Concept Study. J Vasc Interv Radiol. 2016 Mar; 27(3):426-432.e1. PMID: 26706187.
        View in: PubMed
      5. Jun P, Russell M, El-Sayed I, Dillon W, Glastonbury C. Invasive facial fungal infections: Orofacial soft-tissue infiltration in immunocompromised patients. Radiol Case Rep. 2013; 8(2):813. PMID: 27330626.
        View in: PubMed
      6. Winkler EA, Rowland NC, Yue JK, Birk H, Ozpinar A, Tay B, Ames CP, Mummaneni PV, El-Sayed IH. A Tunneled Subcricoid Approach for Anterior Cervical Spine Reoperation: Technical and Safety Results. World Neurosurg. 2016 Feb; 86:328-35. PMID: 26409079.
        View in: PubMed
      7. Markey JD, Seth R, Wang SJ, Ryan WR, El-Sayed IH, Knott PD. Anterolateral Thigh Adipofascial Flap: A New Option for Scalp Reconstruction. J Reconstr Microsurg. 2016 Feb; 32(2):160-3. PMID: 26340759.
        View in: PubMed
      8. Benet A, Plata Bello J, El-Sayed I. Combined Endonasal-Transcervical Approach to a Metastatic Parapharyngeal Space Papillary Thyroid Carcinoma. Cureus. 2015 Jul; 7(7):e285. PMID: 26203403; PMCID: PMC4509622.
      9. Markey J, Benet A, El-Sayed IH. The endonasal endoscopic harvest and anatomy of the buccal fat pad flap for closure of skull base defects. Laryngoscope. 2015 Oct; 125(10):2247-52. PMID: 26053528.
        View in: PubMed
      10. Jahangiri A, Chin AT, Wagner JR, Kunwar S, Ames C, Chou D, Barani I, Parsa AT, McDermott MW, Benet A, El-Sayed IH, Aghi MK. Factors predicting recurrence after resection of clival chordoma using variable surgical approaches and radiation modalities. Neurosurgery. 2015 Feb; 76(2):179-85; discussion 185-6. PMID: 25594191.
        View in: PubMed
      11. Awad AJ, Mohyeldin A, El-Sayed IH, Aghi MK. Sinonasal morbidity following endoscopic endonasal skull base surgery. Clin Neurol Neurosurg. 2015 Mar; 130:162-7. PMID: 25621713.
        View in: PubMed
      12. Ivan ME, Bryan Iorgulescu J, El-Sayed I, McDermott MW, Parsa AT, Pletcher SD, Jahangiri A, Wagner J, Aghi MK. Risk factors for postoperative cerebrospinal fluid leak and meningitis after expanded endoscopic endonasal surgery. J Clin Neurosci. 2015 Jan; 22(1):48-54. PMID: 25439754.
        View in: PubMed
      13. Rolston JD, Han SJ, Cotter JA, El-Sayed IH, Aghi MK. Gangliogliomas of the optic pathway. J Clin Neurosci. 2014 Dec; 21(12):2244-9. PMID: 25043166.
        View in: PubMed
      14. Safaee M, Oh T, Sun MZ, Parsa AT, McDermott MW, El-Sayed IH, Bloch O. Pigmented villonodular synovitis of the temporomandibular joint with intracranial extension: A case series and systematic review. Head Neck. 2015 Aug; 37(8):1213-24. PMID: 24764167.
        View in: PubMed
      15. Gruss CL, Al Komser M, Aghi MK, Pletcher SD, Goldberg AN, McDermott M, El-Sayed IH. Risk factors for cerebrospinal leak after endoscopic skull base reconstruction with nasoseptal flap. Otolaryngol Head Neck Surg. 2014 Sep; 151(3):516-21. PMID: 24898075.
        View in: PubMed
      16. Yu J, Aldabagh B, Wang J, Yom SS, El-Sayed I, Knott D, McGrath MH, Arron S. Multidisciplinary management of advanced basal cell carcinoma: report of four cases. J Drugs Dermatol. 2014 May; 13(5):601-6. PMID: 24809887.
        View in: PubMed
      17. Schafer AL, Mumm S, El-Sayed I, McAlister WH, Horvai AE, Tom AM, Hsiao EC, Schaefer FV, Collins MT, Anderson MS, Whyte MP, Shoback DM. Panostotic expansile bone disease with massive jaw tumor formation and a novel mutation in the signal peptide of RANK. J Bone Miner Res. 2014 Apr; 29(4):911-21. PMID: 24014458; PMCID: PMC4419358.
      18. Burke K, Benet A, Aghi MK, El-Sayed I. Impact of platybasia and anatomic variance on surgical approaches to the craniovertebral junction. Laryngoscope. 2014 Aug; 124(8):1760-6. PMID: 24510671.
        View in: PubMed
      19. Ouyang D, El-Sayed IH, Yom SS. National trends in surgery for sinonasal malignancy and the effect of hospital volume on short-term outcomes. Laryngoscope. 2014 Jul; 124(7):1609-14. PMID: 24390781.
        View in: PubMed
      20. Jahangiri A, Potts M, Kunwar S, Blevins L, El-Sayed IH, Aghi MK. Extended endoscopic endonasal approach for suprasellar Rathke's cleft cysts. J Clin Neurosci. 2014 May; 21(5):779-85. PMID: 24308953.
        View in: PubMed
      21. Clark AJ, Jahangiri A, Garcia RM, George JR, Sughrue ME, McDermott MW, El-Sayed IH, Aghi MK. Endoscopic surgery for tuberculum sellae meningiomas: a systematic review and meta-analysis. Neurosurg Rev. 2013 Jul; 36(3):349-59. PMID: 23568697.
        View in: PubMed
      22. Rowland NC, Jermakowicz WJ, Tihan T, El-Sayed IH, McDermott MW. Subacute cystic expansion of intracranial juvenile psammomatoid ossifying fibroma. J Neurosurg Pediatr. 2013 Jun; 11(6):687-91. PMID: 23540525.
        View in: PubMed
      23. Apori AA, Brozynski MN, El-Sayed IH, Herr AE. Microfluidic validation of diagnostic protein markers for spontaneous cerebrospinal fluid rhinorrhea. J Proteome Res. 2013 Mar 1; 12(3):1254-65. PMID: 23343621.
        View in: PubMed
      24. Kaur G, Kane AJ, Sughrue ME, Madden M, Oh MC, Sun MZ, Safaee M, El-Sayed I, Aghi M, McDermott MW, Berger MS, Parsa AT. The prognostic implications of Hyam's subtype for patients with Kadish stage C esthesioneuroblastoma. J Clin Neurosci. 2013 Feb; 20(2):281-6. PMID: 23266076; PMCID: PMC3795510.
      25. Jahangiri A, Jian B, Miller L, El-Sayed IH, Aghi MK. Skull base chordomas: clinical features, prognostic factors, and therapeutics. Neurosurg Clin N Am. 2013 Jan; 24(1):79-88. PMID: 23174359.
        View in: PubMed
      26. Ivan ME, Jahangiri A, El-Sayed IH, Aghi MK. Minimally invasive approaches to the anterior skull base. Neurosurg Clin N Am. 2013 Jan; 24(1):19-37. PMID: 23174355.
        View in: PubMed
      27. Groppo ER, El-Sayed IH, Aiken AH, Glastonbury CM. Computed tomography and magnetic resonance imaging characteristics of acute invasive fungal sinusitis. Arch Otolaryngol Head Neck Surg. 2011 Oct; 137(10):1005-10. PMID: 22006778.
        View in: PubMed
      28. Wu JC, Mummaneni PV, El-Sayed IH. Diseases of the odontoid and craniovertebral junction with management by endoscopic approaches. Otolaryngol Clin North Am. 2011 Oct; 44(5):1029-42. PMID: 21978894.
        View in: PubMed
      29. El-Sayed IH, Wu JC, Dhillon N, Ames CP, Mummaneni P. The importance of platybasia and the palatine line in patient selection for endonasal surgery of the craniocervical junction: a radiographic study of 12 patients. World Neurosurg. 2011 Jul-Aug; 76(1-2):183-8; discussion 74-8. PMID: 21839972; PMCID: PMC3156412.
      30. El-Sayed I, Pletcher S, Russell M, McDermott M, Parsa A. Endoscopic anterior maxillotomy: infratemporal fossa via transnasal approach. Laryngoscope. 2011 Apr; 121(4):694-8. PMID: 21433014.
        View in: PubMed
      31. El-Sayed IH, Ho JE, Eisele DW. External light guidance for percutaneous dilatational tracheotomy. Head Neck. 2011 Aug; 33(8):1206-9. PMID: 21413098.
        View in: PubMed
      32. Huang X, Kang B, Qian W, Mackey MA, Chen PC, Oyelere AK, El-Sayed IH, El-Sayed MA. Comparative study of photothermolysis of cancer cells with nuclear-targeted or cytoplasm-targeted gold nanospheres: continuous wave or pulsed lasers. J Biomed Opt. 2010 Sep-Oct; 15(5):058002. PMID: 21054128.
        View in: PubMed
      33. Antoine J, Hussain Z, El-Sayed I, Apfel CC. The unrecognised difficult extubation: a call for vigilance. Anaesthesia. 2010 Sep; 65(9):946-8. PMID: 20573149.
        View in: PubMed
      34. El-Sayed IH, Ryan S, Schell H, Rappazini R, Wang SJ. Identifying and improving knowledge deficits of emergency airway management of tracheotomy and laryngectomy patients: a pilot patient safety initiative. Int J Otolaryngol. 2010; 2010:638742. PMID: 20585351; PMCID: PMC2877199.
      35. El-Sayed IH. Nanotechnology in head and neck cancer: the race is on. Curr Oncol Rep. 2010 Mar; 12(2):121-8. PMID: 20425597; PMCID: PMC2842561.
      36. El-Sayed IH, Wu JC, Ames CP, Balamurali G, Mummaneni PV. Combined transnasal and transoral endoscopic approaches to the craniovertebral junction. J Craniovertebr Junction Spine. 2010 Jan; 1(1):44-8. PMID: 20890414; PMCID: PMC2944854.
      37. Huang X, El-Sayed IH, El-Sayed MA. Applications of gold nanorods for cancer imaging and photothermal therapy. Methods Mol Biol. 2010; 624:343-57. PMID: 20217607.
        View in: PubMed
      38. Kolokythas A, Eisele DW, El-Sayed I, Schmidt BL. Mandibular osteotomies for access to select parapharyngeal space neoplasms. Head Neck. 2009 Jan; 31(1):102-10. PMID: 18853448.
        View in: PubMed
      39. Jain PK, Huang X, El-Sayed IH, El-Sayed MA. Noble metals on the nanoscale: optical and photothermal properties and some applications in imaging, sensing, biology, and medicine. Acc Chem Res. 2008 Dec; 41(12):1578-86. PMID: 18447366.
        View in: PubMed
      40. El-Sayed IH, Roediger FC, Goldberg AN, Parsa AT, McDermott MW. Endoscopic reconstruction of skull base defects with the nasal septal flap. Skull Base. 2008 Nov; 18(6):385-94. PMID: 19412408; PMCID: PMC2637073.
      41. Dickerson EB, Dreaden EC, Huang X, El-Sayed IH, Chu H, Pushpanketh S, McDonald JF, El-Sayed MA. Gold nanorod assisted near-infrared plasmonic photothermal therapy (PPTT) of squamous cell carcinoma in mice. Cancer Lett. 2008 Sep 28; 269(1):57-66. PMID: 18541363; PMCID: PMC3413727.
      42. Chen AM, Daly ME, El-Sayed I, Garcia J, Lee NY, Bucci MK, Kaplan MJ. Patterns of failure after combined-modality approaches incorporating radiotherapy for sinonasal undifferentiated carcinoma of the head and neck. Int J Radiat Oncol Biol Phys. 2008 Feb 1; 70(2):338-43. PMID: 18207030.
        View in: PubMed
      43. El-Sayed I, Huang X, Macheret F, Humstoe JO, Kramer R, El-Sayed M. Effect of plasmonic gold nanoparticles on benign and malignant cellular autofluorescence: a novel probe for fluorescence based detection of cancer. Technol Cancer Res Treat. 2007 Oct; 6(5):403-12. PMID: 17877428.
        View in: PubMed
      44. Huang X, Qian W, El-Sayed IH, El-Sayed MA. The potential use of the enhanced nonlinear properties of gold nanospheres in photothermal cancer therapy. Lasers Surg Med. 2007 Oct; 39(9):747-53. PMID: 17960762.
        View in: PubMed
      45. Huang X, Jain PK, El-Sayed IH, El-Sayed MA. Gold nanoparticles: interesting optical properties and recent applications in cancer diagnostics and therapy. Nanomedicine (Lond). 2007 Oct; 2(5):681-93. PMID: 17976030.
        View in: PubMed
      46. Huang X, Jain PK, El-Sayed IH, El-Sayed MA. Plasmonic photothermal therapy (PPTT) using gold nanoparticles. Lasers Med Sci. 2008 Jul; 23(3):217-28. PMID: 17674122.
        View in: PubMed
      47. Oyelere AK, Chen PC, Huang X, El-Sayed IH, El-Sayed MA. Peptide-conjugated gold nanorods for nuclear targeting. Bioconjug Chem. 2007 Sep-Oct; 18(5):1490-7. PMID: 17630680.
        View in: PubMed
      48. Saito DM, Glastonbury CM, El-Sayed IH, Eisele DW. Parapharyngeal space schwannomas: preoperative imaging determination of the nerve of origin. Arch Otolaryngol Head Neck Surg. 2007 Jul; 133(7):662-7. PMID: 17638778.
        View in: PubMed
      49. Huang X, El-Sayed IH, Qian W, El-Sayed MA. Cancer cells assemble and align gold nanorods conjugated to antibodies to produce highly enhanced, sharp, and polarized surface Raman spectra: a potential cancer diagnostic marker. Nano Lett. 2007 Jun; 7(6):1591-7. PMID: 17474783.
        View in: PubMed
      50. Chen AM, Daly ME, Bucci MK, Xia P, Akazawa C, Quivey JM, Weinberg V, Garcia J, Lee NY, Kaplan MJ, El-Sayed I, Eisele DW, Fu KK, Phillips TL. Carcinomas of the paranasal sinuses and nasal cavity treated with radiotherapy at a single institution over five decades: are we making improvement? Int J Radiat Oncol Biol Phys. 2007 Sep 1; 69(1):141-7. PMID: 17459609.
        View in: PubMed
      51. Daly ME, Chen AM, Bucci MK, El-Sayed I, Xia P, Kaplan MJ, Eisele DW. Intensity-modulated radiation therapy for malignancies of the nasal cavity and paranasal sinuses. Int J Radiat Oncol Biol Phys. 2007 Jan 1; 67(1):151-7. PMID: 17189068.
        View in: PubMed
      52. El-Sayed IH, Eisele DW, Yang TL, Iezza G. Solitary fibrous tumor of the retropharynx causing obstructive sleep apnea. Am J Otolaryngol. 2006 Jul-Aug; 27(4):259-62. PMID: 16798403.
        View in: PubMed
      53. Jain PK, Lee KS, El-Sayed IH, El-Sayed MA. Calculated absorption and scattering properties of gold nanoparticles of different size, shape, and composition: applications in biological imaging and biomedicine. J Phys Chem B. 2006 Apr 13; 110(14):7238-48. PMID: 16599493.
        View in: PubMed
      54. Huang X, Jain PK, El-Sayed IH, El-Sayed MA. Determination of the minimum temperature required for selective photothermal destruction of cancer cells with the use of immunotargeted gold nanoparticles. Photochem Photobiol. 2006 Mar-Apr; 82(2):412-7. PMID: 16613493.
        View in: PubMed
      55. Huang X, El-Sayed IH, Qian W, El-Sayed MA. Cancer cell imaging and photothermal therapy in the near-infrared region by using gold nanorods. J Am Chem Soc. 2006 Feb 15; 128(6):2115-20. PMID: 16464114.
        View in: PubMed
      56. Sanchez-Mejia RO, Pham DN, Prados M, Tihan T, Cha S, El-Sayed I, McDermott MW. Management of a sporadic malignant subfrontal peripheral nerve sheath tumor. J Neurooncol. 2006 Jan; 76(2):165-9. PMID: 16132491.
        View in: PubMed
      57. El-Sayed IH, Huang X, El-Sayed MA. Selective laser photo-thermal therapy of epithelial carcinoma using anti-EGFR antibody conjugated gold nanoparticles. Cancer Lett. 2006 Jul 28; 239(1):129-35. PMID: 16198049.
        View in: PubMed
      58. Huang X, El-Sayed IH, Yi X, El-Sayed MA. Gold nanoparticles: catalyst for the oxidation of NADH to NAD(+). J Photochem Photobiol B. 2005 Nov 1; 81(2):76-83. PMID: 16125965.
        View in: PubMed
      59. El-Sayed IH, Huang X, El-Sayed MA. Surface plasmon resonance scattering and absorption of anti-EGFR antibody conjugated gold nanoparticles in cancer diagnostics: applications in oral cancer. Nano Lett. 2005 May; 5(5):829-34. PMID: 15884879.
        View in: PubMed
      60. El-Sayed IH, Singer MI, Civantos F. Sentinel lymph node biopsy in head and neck cancer. Otolaryngol Clin North Am. 2005 Feb; 38(1):145-60, ix-x. PMID: 15649505.
        View in: PubMed
      61. Donlan RM, Piede JA, Heyes CD, Sanii L, Murga R, Edmonds P, El-Sayed I, El-Sayed MA. Model system for growing and quantifying Streptococcus pneumoniae biofilms in situ and in real time. Appl Environ Microbiol. 2004 Aug; 70(8):4980-8. PMID: 15294838; PMCID: PMC492445.
      62. El-Sayed I, Hatanaka Y, Onozawa SY, Tanaka M. Unusual locking of silicon chains into all-transoid conformation by pentacoordinate silicon atoms. J Am Chem Soc. 2001 Apr 18; 123(15):3597-8. PMID: 11472133.
        View in: PubMed
      63. Smith DK, El-Sayed I, Pafundi E, Dolan RW. Presentation and treatment of a posttraumatic pseudomeningocele of the superior orbit. Am J Otolaryngol. 2000 May-Jun; 21(3):219-21. PMID: 10834560.
        View in: PubMed
      64. El-Naggar MM, El-Waseef AM, El-Halafawy KM, El-Sayed IH. Antitumor activities of vanadium(IV), manganese(IV), iron(III), cobalt(II) and copper(II) complexes of 2-methylaminopyridine. Cancer Lett. 1998 Nov 13; 133(1):71-6. PMID: 9929162.
        View in: PubMed
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