Skip to main content

Main menu

  • Home
  • Articles
    • Current
    • Special Feature Articles - Most Recent
    • Special Features
    • Colloquia
    • Collected Articles
    • PNAS Classics
    • List of Issues
  • Front Matter
    • Front Matter Portal
    • Journal Club
  • News
    • For the Press
    • This Week In PNAS
    • PNAS in the News
  • Podcasts
  • Authors
    • Information for Authors
    • Editorial and Journal Policies
    • Submission Procedures
    • Fees and Licenses
  • Submit
  • Submit
  • About
    • Editorial Board
    • PNAS Staff
    • FAQ
    • Accessibility Statement
    • Rights and Permissions
    • Site Map
  • Contact
  • Journal Club
  • Subscribe
    • Subscription Rates
    • Subscriptions FAQ
    • Open Access
    • Recommend PNAS to Your Librarian

User menu

  • Log in
  • My Cart

Search

  • Advanced search
Home
Home
  • Log in
  • My Cart

Advanced Search

  • Home
  • Articles
    • Current
    • Special Feature Articles - Most Recent
    • Special Features
    • Colloquia
    • Collected Articles
    • PNAS Classics
    • List of Issues
  • Front Matter
    • Front Matter Portal
    • Journal Club
  • News
    • For the Press
    • This Week In PNAS
    • PNAS in the News
  • Podcasts
  • Authors
    • Information for Authors
    • Editorial and Journal Policies
    • Submission Procedures
    • Fees and Licenses
  • Submit
Research Article

Functional profiling of circulating tumor cells with an integrated vortex capture and single-cell protease activity assay

View ORCID ProfileManjima Dhar, Jeffrey Nam Lam, Tonya Walser, Steven M. Dubinett, Matthew B. Rettig, and Dino Di Carlo
  1. aDepartment of Bioengineering, Samueli School of Engineering, University of California, Los Angeles, CA 90095;
  2. bDepartment of Medicine, David Geffen School of Medicine, University of California, Los Angeles, CA 90095;
  3. cVA Greater Los Angeles Healthcare System, Los Angeles, CA 90073;
  4. dUCLA Jonsson Comprehensive Cancer Center, Los Angeles, CA 90095;
  5. eDepartment of Urology, David Geffen School of Medicine, University of California, Los Angeles, CA 90095;
  6. fDepartment of Mechanical and Aerospace Engineering, Samueli School of Engineering, University of California, Los Angeles, CA 90095

See allHide authors and affiliations

PNAS October 2, 2018 115 (40) 9986-9991; first published September 17, 2018; https://doi.org/10.1073/pnas.1803884115
Manjima Dhar
aDepartment of Bioengineering, Samueli School of Engineering, University of California, Los Angeles, CA 90095;
  • Find this author on Google Scholar
  • Find this author on PubMed
  • Search for this author on this site
  • ORCID record for Manjima Dhar
Jeffrey Nam Lam
aDepartment of Bioengineering, Samueli School of Engineering, University of California, Los Angeles, CA 90095;
  • Find this author on Google Scholar
  • Find this author on PubMed
  • Search for this author on this site
Tonya Walser
bDepartment of Medicine, David Geffen School of Medicine, University of California, Los Angeles, CA 90095;
  • Find this author on Google Scholar
  • Find this author on PubMed
  • Search for this author on this site
Steven M. Dubinett
bDepartment of Medicine, David Geffen School of Medicine, University of California, Los Angeles, CA 90095;
cVA Greater Los Angeles Healthcare System, Los Angeles, CA 90073;
dUCLA Jonsson Comprehensive Cancer Center, Los Angeles, CA 90095;
  • Find this author on Google Scholar
  • Find this author on PubMed
  • Search for this author on this site
Matthew B. Rettig
cVA Greater Los Angeles Healthcare System, Los Angeles, CA 90073;
dUCLA Jonsson Comprehensive Cancer Center, Los Angeles, CA 90095;
eDepartment of Urology, David Geffen School of Medicine, University of California, Los Angeles, CA 90095;
  • Find this author on Google Scholar
  • Find this author on PubMed
  • Search for this author on this site
Dino Di Carlo
aDepartment of Bioengineering, Samueli School of Engineering, University of California, Los Angeles, CA 90095;
dUCLA Jonsson Comprehensive Cancer Center, Los Angeles, CA 90095;
fDepartment of Mechanical and Aerospace Engineering, Samueli School of Engineering, University of California, Los Angeles, CA 90095
  • Find this author on Google Scholar
  • Find this author on PubMed
  • Search for this author on this site
  • For correspondence: dicarlo@ucla.edu
  1. Edited by Howard A. Stone, Princeton University, Princeton, NJ, and approved August 15, 2018 (received for review March 11, 2018)

  • Article
  • Figures & SI
  • Info & Metrics
  • PDF
Loading

Online Impact

 

Article Information

vol. 115 no. 40 9986-9991
DOI: 
https://doi.org/10.1073/pnas.1803884115
PubMed: 
30224472

Published By: 
National Academy of Sciences
Print ISSN: 
0027-8424
Online ISSN: 
1091-6490
History: 
  • Published in issue October 2, 2018.
  • Published first September 17, 2018.

Article Versions

  • Previous version (September 17, 2018 - 11:52).
  • You are viewing the most recent version of this article.
Copyright & Usage: 
© 2018 Published under the PNAS license.

Author Information

  1. Manjima Dhara,
  2. Jeffrey Nam Lama,
  3. Tonya Walserb,
  4. Steven M. Dubinettb,c,d,
  5. Matthew B. Rettigc,d,e, and
  6. Dino Di Carloa,d,f,1
  1. aDepartment of Bioengineering, Samueli School of Engineering, University of California, Los Angeles, CA 90095;
  2. bDepartment of Medicine, David Geffen School of Medicine, University of California, Los Angeles, CA 90095;
  3. cVA Greater Los Angeles Healthcare System, Los Angeles, CA 90073;
  4. dUCLA Jonsson Comprehensive Cancer Center, Los Angeles, CA 90095;
  5. eDepartment of Urology, David Geffen School of Medicine, University of California, Los Angeles, CA 90095;
  6. fDepartment of Mechanical and Aerospace Engineering, Samueli School of Engineering, University of California, Los Angeles, CA 90095
  1. Edited by Howard A. Stone, Princeton University, Princeton, NJ, and approved August 15, 2018 (received for review March 11, 2018)

Footnotes

  • ↵1To whom correspondence should be addressed. Email: dicarlo{at}ucla.edu.
  • Author contributions: M.D. and D.D.C. designed research; M.D. and J.N.L. performed research; T.W., S.M.D., and M.B.R. contributed new reagents/analytic tools; M.D. and J.N.L. analyzed data; and M.D. and D.D.C. wrote the paper.

  • Conflict of interest statement: The Regents of the University of California have filed a patent for the integrated vortex capture and droplet generator device of which D.D.C. and M.D. are inventors.

  • This article is a PNAS Direct Submission.

  • This article contains supporting information online at www.pnas.org/lookup/suppl/doi:10.1073/pnas.1803884115/-/DCSupplemental.

Cited By...

  • 51 Citations
  • 54 Citations
  • Google Scholar

This article has been cited by the following articles in journals that are participating in Crossref Cited-by Linking.

  • Nonlinear Microfluidics
    Daniel Stoecklein, Dino Di Carlo
    Analytical Chemistry 2019 91 1
  • Chemical Analysis of Single Cells
    Pieter E. Oomen, Mohaddeseh A. Aref, Ibrahim Kaya, Nhu T. N. Phan, Andrew G. Ewing
    Analytical Chemistry 2019 91 1
  • Scalable High‐Throughput Production of Modular Microgels for In Situ Assembly of Microporous Tissue Scaffolds
    Joseph Michael de Rutte, Jaekyung Koh, Dino Di Carlo
    Advanced Functional Materials 2019 29 25
  • Single-cell analysis targeting the proteome
    Mahmoud Labib, Shana O. Kelley
    Nature Reviews Chemistry 2020 4 3
  • EMT-Associated Heterogeneity in Circulating Tumor Cells: Sticky Friends on the Road to Metastasis
    Anthony Genna, Aline M. Vanwynsberghe, Amélie V. Villard, Charles Pottier, Julien Ancel, Myriam Polette, Christine Gilles
    Cancers 2020 12 6
  • Beyond Capture: Circulating Tumor Cell Release and Single‐Cell Analysis
    Lingling Wu, Xing Xu, Bineet Sharma, Wei Wang, Xin Qu, Lin Zhu, Huimin Zhang, Yanling Song, Chaoyong Yang
    Small Methods 2019 3 5
  • Experimental Characterization of Acoustic Streaming in Gradients of Density and Compressibility
    Wei Qiu, Jonas T. Karlsen, Henrik Bruus, Per Augustsson
    Physical Review Applied 2019 11 2
  • Self-sufficient, low-cost microfluidic pumps utilising reinforced balloons
    Peter Thurgood, Sergio Aguilera Suarez, Sheng Chen, Christopher Gilliam, Elena Pirogova, Aaron R. Jex, Sara Baratchi, Khashayar Khoshmanesh
    Lab on a Chip 2019 19 17
  • Label-free microfluidic sorting of microparticles
    Jian Zhou, Prithviraj Mukherjee, Hua Gao, Qiyue Luan, Ian Papautsky
    APL Bioengineering 2019 3 4
  • Engineering microfluidic chip for circulating tumor cells: From enrichment, release to single cell analysis
    Xu Yu, Na Wu, Feng Chen, Jing Wei, Yongxi Zhao
    TrAC Trends in Analytical Chemistry 2019 117
  • Single-Cell Phenotypic Profiling of CTCs in Whole Blood Using an Integrated Microfluidic Device
    Haimeng Pei, Lu Li, Yuan Wang, Renjie Sheng, Yiguo Wang, Shuting Xie, Lingling Shui, Haibin Si, Bo Tang
    Analytical Chemistry 2019 91 17
  • The label-free separation and culture of tumor cells in a microfluidic biochip
    Jian Zhou, Chunlong Tu, Yitao Liang, Bobo Huang, Yifeng Fang, Xiao Liang, Xuesong Ye
    The Analyst 2020 145 5
  • Expression of Proteolytic Enzymes by Small Cell Lung Cancer Circulating Tumor Cell Lines
    Barbara Rath, Lukas Klameth, Adelina Plangger, Maximilian Hochmair, Ernst Ulsperger, Ihor Huk, Robert Zeillinger, Gerhard Hamilton
    Cancers 2019 11 1
  • Engineered models to parse apart the metastatic cascade
    Lauren A. Hapach, Jenna A. Mosier, Wenjun Wang, Cynthia A. Reinhart-King
    npj Precision Oncology 2019 3 1
  • Perspectives on liquid biopsy for label‐free detection of “circulating tumor cells” through intelligent lab‐on‐chips
    Lisa Miccio, Flora Cimmino, Ivana Kurelac, Massimiliano M. Villone, Vittorio Bianco, Pasquale Memmolo, Francesco Merola, Martina Mugnano, Mario Capasso, Achille Iolascon, Pier Luca Maffettone, Pietro Ferraro
    View 2020 1 3
  • Plasmonic droplet screen for single-cell secretion analysis
    Shih-Chung Wei, Myat Noe Hsu, Chia-Hung Chen
    Biosensors and Bioelectronics 2019 144
  • Recent advances in microfluidic technologies for circulating tumor cells: enrichment, single-cell analysis, and liquid biopsy for clinical applications
    Haimeng Pei, Lu Li, Zhaojun Han, Yiguo Wang, Bo Tang
    Lab on a Chip 2020 20 21
  • A ferrobotic system for automated microfluidic logistics
    Wenzhuo Yu, Haisong Lin, Yilian Wang, Xu He, Nathan Chen, Kevin Sun, Darren Lo, Brian Cheng, Christopher Yeung, Jiawei Tan, Dino Di Carlo, Sam Emaminejad
    Science Robotics 2020 5 39
  • Aptamer-Based Liquid Biopsy
    Lingling Wu, Yidi Wang, Lin Zhu, Yilong Liu, Teng Wang, Dan Liu, Yanling Song, Chaoyong Yang
    ACS Applied Bio Materials 2020 3 5
  • Quantification of Protein Secretion from Circulating Tumor Cells in Microfluidic Chambers
    Lucas Armbrecht, Ophélie Rutschmann, Barbara Maria Szczerba, Jonas Nikoloff, Nicola Aceto, Petra S. Dittrich
    Advanced Science 2020 7 11
  • A New Era in Liquid Biopsy: From Genotype to Phenotype
    Shana O Kelley, Klaus Pantel
    Clinical Chemistry 2020 66 1
  • Capillary-assisted microfluidic biosensing platform captures single cell secretion dynamics in nanoliter compartments
    Amin Hassanzadeh-Barforoushi, Majid Ebrahimi Warkiani, David Gallego-Ortega, Guozhen Liu, Tracie Barber
    Biosensors and Bioelectronics 2020 155
  • Efficient separation of tumor cells from untreated whole blood using a novel multistage hydrodynamic focusing microfluidics
    Rongke Gao, Lei Cheng, Shiyi Wang, Xiaobai Bi, Xueli Wang, Rui Wang, Xinyu Chen, Zhengbao Zha, Feng Wang, Xiaofeng Xu, Gang Zhao, Liandong Yu
    Talanta 2020 207
  • Injection Molded Microfluidics for Establishing High-Density Single Cell Arrays in an Open Hydrogel Format
    Ying Li, Jeffrey D. Motschman, Sean T. Kelly, Benjamin B. Yellen
    Analytical Chemistry 2020 92 3
  • Toward Microfluidic Label‐Free Isolation and Enumeration of Circulating Tumor Cells from Blood Samples
    Camille Raillon, James Che, Sandy Thill, Margaux Duchamp, Benoît X. E. Desbiolles, Arnaud Millet, Elodie Sollier, Philippe Renaud
    Cytometry Part A 2019 95 10
  • Advances of Single-Cell Protein Analysis
    Lixing Liu, Deyong Chen, Junbo Wang, Jian Chen
    Cells 2020 9 5
  • Monodisperse drops templated by 3D-structured microparticles
    Chueh-Yu Wu, Mengxing Ouyang, Bao Wang, Joseph de Rutte, Alexis Joo, Matthew Jacobs, Kyung Ha, Andrea L. Bertozzi, Dino Di Carlo
    Science Advances 2020 6 45
  • Recent Advances in Microfluidic Techniques for Systems Biology
    Gongchen Sun, Hang Lu
    Analytical Chemistry 2019 91 1
  • Magnetic Ranking Cytometry: Profiling Rare Cells at the Single-Cell Level
    Mahmoud Labib, David N. Philpott, Zongjie Wang, Carine Nemr, Jenise B. Chen, Edward H. Sargent, Shana O. Kelley
    Accounts of Chemical Research 2020 53 8
  • Particle pairs and trains in inertial microfluidics
    Christian Schaaf, Holger Stark
    The European Physical Journal E 2020 43 8
  • Particle recirculating orbits within microvortices using microfluidics
    Feng Shen, Zonghe Li, Sen Xue, Mengqi Li, Zhaomiao Liu
    Journal of Physics D: Applied Physics 2021 54 2
  • A virtual-droplet system for sensing MMP9 activity of single suspended and adhered cancer cells
    Ying Li, Pengchao Zhang, Tao Li, Rui Hu, Jiang Zhu, Ting He, Yunhuang Yang, Maili Liu
    Sensors and Actuators B: Chemical 2020 308
  • Combining dielectrophoresis and computer vision for precise and fully automated single-cell handling and analysis
    Neus Godino, Felix Pfisterer, Tobias Gerling, Christian Guernth-Marschner, Claus Duschl, Michael Kirschbaum
    Lab on a Chip 2019 19 24
  • Genetic Heterogeneity of Single Circulating Tumour Cells in Colorectal Carcinoma
    Faysal Bin Hamid, Vinod Gopalan, Marco Matos, Cu-Tai Lu, Alfred King-yin Lam
    International Journal of Molecular Sciences 2020 21 20
  • Spontaneous oscillations and negative-conductance transitions in microfluidic networks
    Daniel J. Case, Jean-Régis Angilella, Adilson E. Motter
    Science Advances 2020 6 20
  • Technologies for the Directed Evolution of Cell Therapies
    Dino Di Carlo
    SLAS TECHNOLOGY: Translating Life Sciences Innovation 2019 24 4
  • Aptamer-Based Detection of Circulating Targets for Precision Medicine
    Lingling Wu, Yidi Wang, Xing Xu, Yilong Liu, Bingqian Lin, Mingxia Zhang, Jialu Zhang, Shuang Wan, Chaoyong Yang, Weihong Tan
    Chemical Reviews 2021
  • Biomaterials for 3D Tumor Modeling
    David Caballero, Maria Angélica Luque-González, Rui L. Reis, Subhas C. Kundu
    2020
  • Conformal single cell hydrogel coating with electrically induced tip streaming of an AC cone
    Zehao Pan, Loan Bui, Vivek Yadav, Fei Fan, Hsueh-Chia Chang, Donny Hanjaya-Putra
    Biomaterials Science 2021
  • Double Emulsion Picoreactors for High-Throughput Single-Cell Encapsulation and Phenotyping via FACS
    Kara K. Brower, Margarita Khariton, Peter H. Suzuki, Chris Still, Gaeun Kim, Suzanne G. K. Calhoun, Lei S. Qi, Bo Wang, Polly M. Fordyce
    Analytical Chemistry 2020 92 19
  • Enumeration, characterisation and clinicopathological significance of circulating tumour cells in patients with colorectal carcinoma
    Faysal Bin Hamid, Cu-Tai Lu, Marco Matos, Tracie Cheng, Vinod Gopalan, Alfred King-yin Lam
    Cancer Genetics 2021 254-255
  • Enzyme Activity in Single Cells
    Yu-Chih Chen, Euisik Yoon
    2019 628
  • Enzyme Activity in Single Cells
    Ee Xien Ng, Myat Noe Hsu, Guoyun Sun, Chia-Hung Chen
    2019 628
  • Gradient Magnetic Separation and Fluorescent Imaging‐Based Heterogeneous Circulating Tumor Cell Subpopulations Assay with Biomimetic Multifunctional Nanoprobes
    Ziyi Liao, Lan Han, Qingjin Li, Linyao Li, Yuan Liu, Yang Song, Weihong Tan, Erqun Song
    Advanced Functional Materials 2021
  • Handbook of Single Cell Technologies
    O. T. M. Bucheli, I. Sigvaldadóttir, K. Eyer
    2020
  • High throughput profiling drug response and apoptosis of single polar cells
    Xixi Wu, Shuangshuang Chen, Qinghua Lu
    Journal of Materials Chemistry B 2020 8 37
  • High-Throughput Cell Trapping in the Dentate Spiral Microfluidic Channel
    Jiawei Lu, Bo Dai, Kan Wang, Yan Long, Zhuoqing Yang, Junyi Chen, Shaoqi Huang, Lulu Zheng, Yongfeng Fu, Wenbin Wan, Songlin Zhuang, Yangtai Guan, Dawei Zhang
    Micromachines 2021 12 3
  • Immobilized Droplet Arrays in Thermosetting Oil for Dynamic Proteolytic Assays of Single Cells
    Wenshuai Wu, Shan Zhang, Tao Zhang, Ying Mu
    ACS Applied Materials & Interfaces 2021 13 5
  • In Situ Shape Control of Thermoplasmonic Gold Nanostars on Oxide Substrates for Hyperthermia-Mediated Cell Detachment
    Gail A. Vinnacombe-Willson, Naihao Chiang, Leonardo Scarabelli, Yuan Hu, Liv K. Heidenreich, Xi Li, Yao Gong, Derek T. Inouye, Timothy S. Fisher, Paul S. Weiss, Steven J. Jonas
    ACS Central Science 2020 6 11
  • Measuring single‐cell protein secretion in immunology: Technologies, advances, and applications
    Olivia T. M. Bucheli, Ingibjörg Sigvaldadóttir, Klaus Eyer
    European Journal of Immunology 2021
  • Periodic fluctuations of streamwise vortices in inertia-dominated intersecting flows
    N. Burshtein, K. Zografos, A. Q. Shen, R. J. Poole, S. J. Haward
    Physics of Fluids 2021 33 1
  • Rapid isolation of circulating cancer associated fibroblasts by acoustic microstreaming for assessing metastatic propensity of breast cancer patients
    Ruoyu Jiang, Sudhanshu Agrawal, Mohammad Aghaamoo, Ritesh Parajuli, Anshu Agrawal, Abraham P. Lee
    Lab on a Chip 2021 21 5
  • Research Progress for the Clinical Application of Circulating Tumor Cells in Prostate Cancer Diagnosis and Treatment
    Mei Yang, Xiaotian Zhang, Lixia Guo, Xiumin Liu, Jing Wu, Hongquan Zhu, Eugenio Zoni
    BioMed Research International 2021 2021
  • Self‐Assembled GO Honeycomb Microarray for Selective Cancer Cell Capture and Single Cell Analysis of Proteolytic Expression
    Shuangshuang Chen, Qinghua Lu
    Advanced Healthcare Materials 2020 9 20

Article usage

Article usage: September 2018 to April 2021

AbstractFullPdf
Sep 20184076498266
Oct 20182087557288
Nov 2018471244122
Dec 201832014369
Total 201869541442745
Jan 201933210872
Feb 201920410370
Mar 201921011268
Apr 20194614667
May 20195820380
Jun 20192817165
Jul 20194818990
Aug 20194917669
Sep 20193117050
Oct 20194519069
Nov 20192515066
Dec 20193317258
Total 201911091890824
Jan 20202017647
Feb 20203315746
Mar 20202616761
Apr 20203718790
May 20202216072
Jun 20202012537
Jul 20202413352
Aug 20203013144
Sep 20202718348
Oct 20204018051
Nov 20204218045
Dec 20203818854
Total 20203591967647
Jan 20215422154
Feb 20211316437
Mar 20213325070
Apr 20211610636
Total 2021116741197
Total853860402413
PreviousNext
Back to top
Article Alerts
Email Article

Thank you for your interest in spreading the word on PNAS.

NOTE: We only request your email address so that the person you are recommending the page to knows that you wanted them to see it, and that it is not junk mail. We do not capture any email address.

Enter multiple addresses on separate lines or separate them with commas.
Functional profiling of circulating tumor cells with an integrated vortex capture and single-cell protease activity assay
(Your Name) has sent you a message from PNAS
(Your Name) thought you would like to see the PNAS web site.
CAPTCHA
This question is for testing whether or not you are a human visitor and to prevent automated spam submissions.
Citation Tools
Functional profiling of circulating tumor cells with an integrated vortex capture and single-cell protease activity assay
Manjima Dhar, Jeffrey Nam Lam, Tonya Walser, Steven M. Dubinett, Matthew B. Rettig, Dino Di Carlo
Proceedings of the National Academy of Sciences Oct 2018, 115 (40) 9986-9991; DOI: 10.1073/pnas.1803884115

Citation Manager Formats

  • BibTeX
  • Bookends
  • EasyBib
  • EndNote (tagged)
  • EndNote 8 (xml)
  • Medlars
  • Mendeley
  • Papers
  • RefWorks Tagged
  • Ref Manager
  • RIS
  • Zotero
Request Permissions
Share
Functional profiling of circulating tumor cells with an integrated vortex capture and single-cell protease activity assay
Manjima Dhar, Jeffrey Nam Lam, Tonya Walser, Steven M. Dubinett, Matthew B. Rettig, Dino Di Carlo
Proceedings of the National Academy of Sciences Oct 2018, 115 (40) 9986-9991; DOI: 10.1073/pnas.1803884115
del.icio.us logo Digg logo Reddit logo Twitter logo CiteULike logo Facebook logo Google logo Mendeley logo
  • Tweet Widget
  • Facebook Like
  • Mendeley logo Mendeley

Article Classifications

  • Biological Sciences
  • Applied Biological Sciences
  • Physical Sciences
  • Engineering
Proceedings of the National Academy of Sciences: 115 (40)
Table of Contents

Submit

Sign up for Article Alerts

Jump to section

  • Article
    • Abstract
    • Results
    • Discussion
    • Materials and Methods
    • Acknowledgments
    • Footnotes
    • References
  • Figures & SI
  • Info & Metrics
  • PDF

You May Also be Interested in

Water from a faucet fills a glass.
News Feature: How “forever chemicals” might impair the immune system
Researchers are exploring whether these ubiquitous fluorinated molecules might worsen infections or hamper vaccine effectiveness.
Image credit: Shutterstock/Dmitry Naumov.
Reflection of clouds in the still waters of Mono Lake in California.
Inner Workings: Making headway with the mysteries of life’s origins
Recent experiments and simulations are starting to answer some fundamental questions about how life came to be.
Image credit: Shutterstock/Radoslaw Lecyk.
Cave in coastal Kenya with tree growing in the middle.
Journal Club: Small, sharp blades mark shift from Middle to Later Stone Age in coastal Kenya
Archaeologists have long tried to define the transition between the two time periods.
Image credit: Ceri Shipton.
Illustration of groups of people chatting
Exploring the length of human conversations
Adam Mastroianni and Daniel Gilbert explore why conversations almost never end when people want them to.
Listen
Past PodcastsSubscribe
Panda bear hanging in a tree
How horse manure helps giant pandas tolerate cold
A study finds that giant pandas roll in horse manure to increase their cold tolerance.
Image credit: Fuwen Wei.

Similar Articles

Site Logo
Powered by HighWire
  • Submit Manuscript
  • Twitter
  • Facebook
  • RSS Feeds
  • Email Alerts

Articles

  • Current Issue
  • Special Feature Articles – Most Recent
  • List of Issues

PNAS Portals

  • Anthropology
  • Chemistry
  • Classics
  • Front Matter
  • Physics
  • Sustainability Science
  • Teaching Resources

Information

  • Authors
  • Editorial Board
  • Reviewers
  • Subscribers
  • Librarians
  • Press
  • Cozzarelli Prize
  • Site Map
  • PNAS Updates
  • FAQs
  • Accessibility Statement
  • Rights & Permissions
  • About
  • Contact

Feedback    Privacy/Legal

Copyright © 2021 National Academy of Sciences. Online ISSN 1091-6490