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Imaging-Based Spectrometer-Less Optofluidic Biosensors Based On
ARTICLE https://doi.org/10.1038/s41467-021-23257-y OPEN Imaging-based spectrometer-less optofluidic biosensors based on dielectric metasurfaces for detecting extracellular vesicles Yasaman Jahani 1,6, Eduardo R. Arvelo1,6, Filiz Yesilkoy 2, Kirill Koshelev 3,4, Chiara Cianciaruso 5, ✉ Michele De Palma 5, Yuri Kivshar 3 & Hatice Altug 1 1234567890():,; Biosensors are indispensable tools for public, global, and personalized healthcare as they provide tests that can be used from early disease detection and treatment monitoring to preventing pandemics. We introduce single-wavelength imaging biosensors capable of reconstructing spectral shift information induced by biomarkers dynamically using an advanced data processing technique based on an optimal linear estimator. Our method achieves superior sensitivity without wavelength scanning or spectroscopy instruments. We engineered diatomic dielectric metasurfaces supporting bound states in the continuum that allows high-quality resonances with accessible near-fields by in-plane symmetry breaking. The large-area metasurface chips are configured as microarrays and integrated with micro- fluidics on an imaging platform for real-time detection of breast cancer extracellular vesicles encompassing exosomes. The optofluidic system has high sensing performance with nearly 70 1/RIU figure-of-merit enabling detection of on average 0.41 nanoparticle/µm2 and real- time measurements of extracellular vesicles binding from down to 204 femtomolar solutions. Our biosensors provide the robustness of spectrometric approaches while substituting complex instrumentation with a single-wavelength light source and a complementary-metal- oxide-semiconductor camera, paving the way toward miniaturized devices for point-of-care diagnostics. 1 Institute of Bioengineering, École Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland. -
An Optofluidic Nanoplasmonic Biosensor for Direct Detection Of
pubs.acs.org/NanoLett An Optofluidic Nanoplasmonic Biosensor for Direct Detection of Live Viruses from Biological Media Ahmet A. Yanik,†,‡ Min Huang,†,‡ Osami Kamohara,†,‡ Alp Artar,†,‡ Thomas W. Geisbert,§,| John H. Connor,*,†,| and Hatice Altug*,†,‡ † Photonics Center and ‡ Electrical and Computer Engineering, Boston University, Boston, Massachusetts 02215, United States and § The National Emerging Infectious Diseases Laboratories (NEIDL) and | Department of Microbiology, Boston University School of Medicine, Boston, Massachusetts 02218, United States ABSTRACT Fast and sensitive virus detection techniques, which can be rapidly deployed at multiple sites, are essential to prevent and control future epidemics and bioterrorism threats. In this Letter, we demonstrate a label-free optofluidic nanoplasmonic sensor that can directly detect intact viruses from biological media at clinically relevant concentrations with little to no sample preparation. Our sensing platform is based on an extraordinary light transmission effect in plasmonic nanoholes and utilizes group-specific antibodies for highly divergent strains of rapidly evolving viruses. So far, the questions remain for the possible limitations of this technique for virus detection, as the penetration depths of the surface plasmon polaritons are comparable to the dimensions of the pathogens. Here, we demonstrate detection and recognition of small enveloped RNA viruses (vesicular stomatitis virus and pseudotyped Ebola) as well as large enveloped DNA viruses (vaccinia virus) within a dynamic -
Book of Abstracts
BOOK OF ABSTRACTS Organised by Sponsored by Welcome to NyNa 2017 The aim of NyNA 2017 is to bring together scientists working in the field of analytical nanoscience and nanotechnology to show their recent findings with interest for various applications. The Organising Committee wants to thank you for being part of this exciting event. The Institut Català de Nanociència i Nanotecnologia is a Severo Ochoa Centre of Excellence committed to bringing nanotechnology closer to industrial applications and society. This event is a unique opportunity to create enduring links and work together to bring benefit to society as a whole. Diagnostics, safety and security, environmental monitoring and other industrial applications are just some of the many fields that could benefit from our joint efforts. Let’s make it happen! Organising committee ICREA Prof. CSIC Research Prof. ICREA Prof. Arben Merkoçi Laura Lechuga Jordi Arbiol Chair Co-Chair Co-Chair Catalan Institute of Catalan Institute of Catalan Institute of Nanoscience and Nanoscience and Nanoscience and Nanotechnology (ICN2) Nanotechnology (ICN2) Nanotechnology (ICN2) Scientific programme committee Dr. Agustín Costa Dr. Alberto Escarpa Dr. Alfredo Sanz-Medel University of Oviedo University of Alcalá University of Oviedo Dr. Ángel Ríos Dr. Arben Merkoci Dr. Cristina González University of Castilla-La Mancha Institute of Nanoscience and University of Alcalá Nanotechnology (ICN2) Dr. Encarnación Dr. F. Xavier Rius Dr. José Manuel Lorenzo Universidad Rovira i Virgili Pingarrón Autonomous University of Complutense University of Madrid Madrid Dr. Juan Ramón Castillo Dr. María Cruz Moreno Dr. María Jesús University of Zaragoza Complutense University of Almendral Madrid University of Salamanca Dr. -
2021 MRS Fall Meeting Call for Papers (PDF)
Symposium BI01: Developing an Open Source Introductory Textbook for the Materials Community The materials community is one of the few in science that does not have an open access textbook for the introduction of our discipline. This symposium is focussed on addressing this need and developing an efficient and continuing process to create a high quality open source electronic textbook that will be vetted by our society along with the other materials societies such as TMS, ACeRs, and ASM. We are planning on inviting top practitioners as well as emerging, young researchers in each of the foundational areas of materials science and engineering. The main outcomes of this symposium will be to identify small editorial boards for each area and to develop a plan to write the first set of chapters. The vision is to create a server based publishing platform to permit continual updating of the chapters with editorial board oversight. New chapters can be added and expanded as time goes on. An instructor will be able to choose the sections they want and produce a pdf for their students at no cost. The goal of this symposium is to work towards developing a sophomore level text that covers the fundamental topics that apply to all areas of materials essential to an introductory text. We expect experienced materials educators to set the scope and depth of the material in each area during planned working sessions and then to identify early career materials scientists and engineers to lead the effort for writing and editing the text, examples, worked problems, and other digital content for each topical area. -
TASSA 08 Program Final No Abstracts.Indd
TASSA ANNUAL CONFERENCE 11-13 APRIL, 2008 HARVARD UNIVERSITY, BOSTON, MA TURKISH-AMERICAN SCIENTISTS AND SCHOLARS ASSOCIATION TURKISH AMERICAN SCIENTISTS AND SCHOLARS ASSOCIATION Conference Theme: Innovati on as Driver for Social Transformati on and Economic Growth 1526 18th Street, NW, Washington, D.C. 20036 www.tassausa.org z [email protected] TASSA 2008 ANNUAL CONFERENCE ORGANIZING COMMITTEE Mehmet Toner, Conference Chair Banu Onaral, Conference Co-Chair, TASSA President Süleyman Gökoğlu, TASSA Past-President Aylin Sagay, Executive Director Hande Özdinler, Membership Committee Chair Yaman Yener, Conference Local Committee Chair Gokhan Hotamisligil, Local Committee Selim Unlu, Local Committee Poster Committee Aziz Uluğ Fikri Avcı Murat Çokol Metin Sitti Murat Eron Ali Özdoğan Kenan Gündoğdu Hasan Ayaz TASSA’08 Conference IT Committee Yalçın Sert Hasan Ayaz We appreciate the support of our local crew of volunteers. Copyright 2008, TASSA All rights reserved. No parts of this publicati on shall be processed/adapted, reproduced, stored in a retrieval system, circulated, re-sold, rent, lent, represented, performed, recorded, transmitt ed with cord/cordless or any technical, digital and/or electronic devices without prior writt en permission from the author(s)/right holders subject to Arti cle 52 of Law No. 4110 amended by Law No. 5846 for Intellectual and Arti sti c Works. Contents were reproduced from author-provided text and presentati on materials. Trade names or manufacturers’ names are used in this report for identi fi cati on only. This usage does not consti tute an offi cial endorsement, either expressed or implied, by the Turkish American Scienti sts and Scholars Associati on. Available electronically at: htt p://www.tassausa.org TURKISH-AMERICAN SCIENTISTS AND SCHOLARS ASSOCIATION TURKISH AMERICAN SCIENTISTS AND SCHOLARS ASSOCIATION ANNUAL CONFERENCE THE JOSEPH B. -
ADDRESS Prof
Jelena Vuckovic, Curriculum Vitae, 08/2021 ADDRESS Prof. Jelena Vuckovic Ginzton Laboratory Spilker Building for Engineering and Applied Sciences Stanford University 348 Via Pueblo Mall Stanford, CA 94305-4088 Phone: (650) 725-2288 Fax: (650) 723-5320 E-mail: [email protected] WWW: http://web.stanford.edu/~jela http://nqp.stanford.edu/ EDUCATION Ph.D Electrical Engineering California Institute of Technology 2002 M.S. Electrical Engineering California Institute of Technology 1997 Diploma Electrical Engineering University of Nis, Serbia 1994 APPOINTMENTS August 2021 – present: Fortinet Founders Chair of Electrical Engineering, Stanford June 2019 – present: Jensen Huang Professor in Global Leadership, School of Engineering, Professor of Electrical Engineering and by courtesy of Applied Physics, Stanford University A faculty member of the Ginzton Lab, PULSE Institute, SIMES Institute, Wu-Tsai Neuroscience Institute, and Bio-X December 2018 – July 2021: Inaugural Director of Q-FARM: Stanford-SLAC Quantum Initiative September 2014 – June 2019: Professor of Electrical Engineering and by courtesy of Applied Physics, Stanford University; a faculty member of the Ginzton Lab, PULSE Institute, SIMES Institute, and Bio-X February 2013 – Sept. 2014: Professor of Electrical Engineering, Stanford University; a faculty member of Ginzton Lab Sept. 2008 – January 2013: Associate Professor of Electrical Engineering (with tenure), Stanford University January 2003–Aug. 2008: Assistant Professor of Electrical Engineering, Stanford University. September 2002–December 2002: Acting Assistant Professor of Electrical Engineering, Stanford University. 1 Jelena Vuckovic, Curriculum Vitae, 08/2021 January 2002–August 2002: Postdoctoral Scholar, Stanford University, Applied Physics Department. 2002: Consultant, Luxtera Inc. Sept 1996–December 2001: Research and Teaching Assistant, California Institute of Technology. -
Hatice Altug: Diagnosing Disease - IEEE - the Institute
Hatice Altug: Diagnosing Disease - IEEE - The Institute Home (/) / People (/people) / Profiles (/people/profiles) Hatice Altug: Diagnosing Disease Portable biosensor detects viruses By AMANDA DAVIS 5 March 2012 When it comes to fighting off disease, early detection is key. But the technology for diagnosing some diseases can be expensive and unwieldy, and the process can be time-consuming. That’s where IEEE Member Hatice Altug and her research team at Boston University come in. They are working to develop a portable biosensor that eventually will help diagnose common human ailments such as food poisoning or swine flu faster and more easily. An assistant professor of electrical and computer engineering at the school, Altug was recently recognized by Photo: Boston University U.S. president Barack Obama for her work on the sensor. In 2011, she was one of the recipients of the Presidential Early Career Award for Science and Engineers, an honor bestowed by the federal government on science and engineering professionals in the initial stages of their careers. She was cited for “advancing the frontiers of proteomics [the study of proteins] to enable the discovery of protein biomarkers for detection of disease, drugs, and environmental monitoring, and for innovative educational and outreach activities that have helped students at all levels.” The 33-year-old Altug received her Ph.D. in applied sciences from Stanford University in 2006, after getting her bachelor’s degree in physics in 2000 from Bilkent University, in Ankara, Turkey. IN THE LIGHT To diagnose a patient’s illness, doctors often take a sample of bodily fluid, send it to a laboratory, and wait for a technician’s analysis. -
Nanotools Microfabrication Facility Annual Report June 2011 – May 2012
Nanotools MicroFabrication Facility Annual Report June 2011 – May 2012 Submitted August 21st, 2012 Prof. P. Grutter Director, Nanotools MicroFabrication Facility 1 McGill Nanotools Microfab Annual Report 2011‐2012 Content 1. Executive summary Page 2 2. Organization 2.1 Academic Oversight Page 3 2.2 Achievements and key improvements Page 4 2.3 Major new policies Page 6 3. Update on Manpower and Equipment 3.1 Operation Staff Page 7 3.2 Changes in Tools Page 7 4. Outcomes: Publications, HQP and Grants 4.1. Summary Page 8 4.2 Graduated HQP Page 8 4.3 HQP trained in the fab Page 9 4.3 Research grants acquired due to access to fab Page 9 5. Budgetary report 5.1 Expenses details for FY 2011/12 Page 10 5.2 Revenues Page 12 6. Usage Page 13 6.1 Usage breakdown according to faculties Page 14 6.2 External, industrial and other non‐academic usage Page 16 7. Major Success Stories Page 19 7. Outlook Page 20 8. Appendices (details) 7.1 Papers Page 21 7.2. Patents and Start‐ups Page 26 7.3 Graduated HQP Page 27 7.4 Grants and contracts Page 29 2 McGill Nanotools Microfab Annual Report 2011‐2012 Executive Summary In the fiscal year 2011‐2012 income from user fees was $262,731. Compared to 2010/11, this is an effective 18% increase. For a second year in a row, the McGill Nanotools Microfab is recovering all operating expenses from user fees. The University and NanoQuebec support the cost of manpower at 100%. Average user fees amounted to $37.5/h. -
2011-2012 Department Highlights
Department of Electrical & Computer Engineering Annual Report 2011– 2012 © 2012, Boston University Production: Sneha Dasgupta (COM '13) and Rachel Harrington Content: Caleb Daniloff, Sneha Dasgupta (COM '13), Mark Dwortzan, Samantha Gordon (COM '12), Rachel Harrington, Courtney Humphries, Michael G. Seele, ECE staff, and ECE faculty Front cover: Top photo- Pictured from left, Professor Roberto Paiella, Cicek Boztug (PhD '14), and Faisal Sudradjat (PhD '12) work to improve the efficiency of light emission to allow for laser development from group- IV semiconductors. Bottom photo - Undergraduates in Assistant Professor Ajay Joshi's EK131: Introduction to Engineering work together on their final projects. This report provides a look into the Department of Electrical & Computer Engineering at Boston University during the 2011 – 2012 academic year. Instructional activities are reported from the Fall 2011 through Summer 2012 semesters while scholarly activities and budget information are reported from July 1, 2011 to June 30, 2012. Boston University’s policies provide for equal opportunity and affirmative action in employment and admission to all programs of the University. For more information or to download this report as a PDF, please visit our website at www.bu.edu/ece. MESSAGE FROM THE CHAIR MESSAGE FROM THE CHAIR A Message from Our Chair This was an excellent year, marked by an important milestone, for concentration in technology innovation for engineers with Boston University’s ECE Department. In May 2012, we celebrated entrepreneurial orientations, in collaboration with the School of the 20th anniversary of the College of Engineering’s PhD program Management. with a strong graduating class of 19 PhD students mentored by our ECE faculty. -
Nanoplasmonic Biosensors for Clinical Diagnosis at the Point of Care
Doctorat en Bioquímica, Biologia Molecular i Biomedicina Departament de Bioquímica i Biologia Molecular – Facultat de Medicina Nanoplasmonic Biosensors for Clinical Diagnosis at the Point of Care Doctoral Thesis – 2015 Maria Soler Aznar Author Dr. M. Carmen Estévez Prof. Carles Arús Prof. Laura M. Lechuga Tutor Directors Abstract This Doctoral Thesis focuses on the development of novel analytical methodologies in optical biosensors as alternative solutions for diagnosis or therapy monitoring of relevant diseases, such as allergy, celiac disease or cancer. In particular, we propose the use of nanoplasmonic biosensors for a rapid, sensitive and label-free detection of biomarkers present in human fluids. Both the well-known Surface Plasmon Resonance (SPR) biosensor and an innovative nanoplasmonic biosensor based on gold nanodisks surfaces have been evaluated for their real application in the clinical field. The different biosensor methodologies make use of antibodies, either as biorecognition elements in immunoassays or as specific disease biomarkers for diagnostics. First, an in-depth study of two site-directed antibody immobilization strategies is presented for the direct immunoassay of protein biomarkers in biological fluids. In second place, a novel immunosensing strategy is proposed for the detection of gluten-derivative peptides in urine as a rapid and non-invasive technique for dietary control in celiac patients. On the other hand, two assays have been developed employing the nanoplasmonic biosensor to detect blood circulating antibodies as disease biomarkers. First, we have designed an alternative approach for drug allergy diagnosis (in particular for amoxicillin) based on dendrimer-based receptors, which enable the detection IgE antibodies directly in serum. And second, a new biosensing strategy is assessed to quantify specific tumor-related autoantibodies for the early diagnosis of colorectal cancer.