Qin XU
许钦
PhD in Physics
The University of Chicago, 2015

Assistant Professor
Department of Physics



(852) 2358 8591
qinxu@ust.hk
Room 4439
Personal Web

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Google Scholar
Ita_djMAAAAJ

ORCID
0000-0001-6214-1149

Scopus ID
57195680354




Research Interest Publications Projects Teaching Assignment RPG Supervision Space used




Research Interest

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Soft matter physics
Complex fluids



Publications

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All Years 31 2022 2 2021 2 2020 2 2019 4 2018 5 2017 3 2016 13

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2022 2

Multiscale Soft Surface Instabilities for Adhesion Enhancement
Materials, v. 15, (3), January 2022, article number 852
Vilavinalthundil Mohanan, Vaisakh; Mak, Ho Yi Lydia; Gurung, Nishan; Xu, Qin Article
The role of crosslinking density in surface stress and surface energy of soft solids
Soft Matter, v. 18, (3), January 2022, p. 507-513
Zhao, Weiwei; Zhou, Jianhui; Hu, Haitao; Xu, Chang; Xu, Qin Article

2021 2

Contact lines on stretched soft solids: Modeling anisotropic surface stresses
Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, v. 447, (2245), January 2021, article number 20200673
Heyden, Stefanie; Bain, Nicolas; Xu, Qin; Style, Robert W.; Dufresne, Eric R. Article
Droplets sit and slide anisotropically on soft, stretched substrates
Physical Review Letters, v. 126, (15), April 2021, article number 158004
Smith-mannschott, Katrina; Xu, Qin; Heyden, Stefanie; Bain, Nicolas; Snoeijer, Jacco; Dufresne, Eric; Style, Robert Article

2020 2

Stress fluctuations and shear thickening in dense granular suspensions
Journal of Rheology, v. 64, (2), March 2020, article number 10.1122/1.5133037, p. 321-328
Xu, Qin; Singh, Abhinendra; Jaeger, Heinrich M. Article
Viscoelastic and Poroelastic Relaxations of Soft Solid Surfaces
Physical Review Letters, v. 125, (23), 30 November 2020, article number 238002
Xu, Qin; Wilen, Lawrence A.; Jensen, Katharine E.; Style, Robert W.; Dufresne, Eric R. Article

2019 4

Effects of strain-dependent surface stress on the adhesive contact of a rigid sphere to a compliant substrate
Soft Matter, v. 15, (10), March 2019, p. 2223-2231
Liu, Zezhou; Jensen, Katherine E.; Xu, Qin; Style, Robert W.; Dufresne, Eric R.; Jagota, Anand; Hui, Chung Yuen Article
Singular dynamics in the failure of soft adhesive contacts
Soft Matter, v. 15, (6), February 2019, p. 1327-1334
Berman, Justin D.; Randeria, Manjari; Style, Robert W.; Xu, Qin; Nichols, James R.; Duncan, Aidan J.; Loewenberg, Michael; Dufresne, Eric R.; Jensen, Katherine E. Article
Direct observations of dewetting relaxation at the interface of soft gels
APS March Meeting 2019, v. 64, (2), March 2019, article number R58.00010
Xu, Qin; Wilen, Lawrence; Style, Robert; Dufresne, Eric Conference paper
Direct observations of dewetting relaxation at the interface of soft gels
D-Materials Colloquium 2019, ETH Zurich, Zurich, Switzerland, 4 September 2019
Xu, Qin Conference paper

2018 5

Liquid-liquid phase separation in an elastic network
Physical Review X, v. 8, (1), February 2018, article number 011028
Style, Robert W.; Sai, Tianqi; Fanelli, Nicolo; Ijavi, Mahdiye; Smith-Mannschott, Katrina; Xu, Qin; Wilen, Lawrence A.; Dufresne, Eric R. Article
Surface elastic constants of a soft solid
Soft Matter, v. 14, (6), February 2018, p. 916-920
Xu, Qin; Style, Robert W.; Dufresne, Eric R. Article
The mechanical equilibrium of soft solids with surface elasticity
Soft Matter, v. 14, (22), June 2018, p. 4569-4576
Style, Robert W.; Xu, Qin Article
Surface tension and surface elasticity of soft solids
Martin A. Fisher School of Physics Colloquium 2018, Brandeis University, Waltham, USA, 25 January 2018
Xu, Qin Conference paper
Why soft is great?
The 4th Beihang University Vision Forum for International Young Scholars, Beijing, China, 7 May 2018
Xu, Qin Conference paper

2017 3

Direct measurement of strain-dependent solid surface stress
Nature Communications, v. 8, (1), September 2017, article number 555
Xu, Qin; Jensen, Katharine E.; Boltyanskiy, Rostislav; Sarfati, Raphael; Style, Robert W.; Dufresne, Eric R. Article
Strain-dependent solid surface stress and the stiffness of soft contacts
Physical Review X, v. 7November 2017, (4), November 2017, article number 041031
Jensen, Katherine E.; Style, Robert W.; Xu, Qin; Dufresne, Eric R. Article
Direct measurements of surface tension of strained soft solids
Soft Matter Interfaces: From Biology to Engineering Applications 2017, Monte Verita, Switzerland, 5-10 November 2017
Xu, Qin Conference paper

2016 2

Direct measurements of surface stress of stretched soft solids
The First International Young Scholars Shenzhen Forum of Sun Yat-sen University, Guangzhou, China, 24-26 December 2016
Xu, Qin Conference paper
Why soft is great?
Fudan-Guanghua International Forum for Young Scholars 2016, Shanghai, China, 26-27 December 2016
Xu, Qin Conference paper

2014 4

Controlling electromagnetic waves with meta-surfaces
SPIE: Newsroom, 24 February 2014, article number 5337
He, Qiong; Xiao, Shiyi; Li, Xin; Xu, Qin; Sun, Shulin; Zhou, Lei Article
Dense suspension splat: Monolayer spreading and hole formation after impact
Physical Review Letters, v. 113, (4), July 2014, article number 044502
Lubbers, Luuk A.; Xu, Qin; Wilken, Sam; Zhang, Wendy W.; Jaeger, Heinrich M. Article
Fast imaging technique to study drop impact dynamics of non-newtonian fluids
Journal of Visualized Experiments, v. 85, March 2014, article number e51249
Xu, Qin; Peters, Ivo; Wilken, Sam; Brown, Eric; Jaeger, Heinrich Article
Shear thickening in highly viscous granular suspensions
EPL (Europhysics Letters), v. 107, (6), September 2014, article number 68004
Xu, Qin; Majumdar, Sayantan; Brown, Eric; Jaeger, Heinrich M. Article

2013 4

Cinnamate-based DNA photolithography
Nature Materials, v. 12, (8), August 2013, p. 747-753
Feng. Lang; Romulus, Joy; Li, Minfeng; Sha, Ruojie; Royer, John; Wu, Kun Ta; Xu, Qin; Seeman, Nadrian C.; Weck, Marcus; Chaikin, Paul Article
Impact dynamics of oxidized liquid metal drops
Physical Review E - Statistical, Nonlinear, and Soft Matter Physics, v.87 , (4), April 2013, article number 043012
Xu, Qin; Brown, Eric; Jaeger, Heinrich M. Article
Splashing onset in dense suspension droplets
Physical Review Letters, v. 111, (2), July 2013, article number 028301
Peters, Ivo R.; Xu, Qin; Jaeger, Heinrich M. Article
梯度特异介质表面研究进展
激光与光电子学进展, v. 2013, (8), 2013, p. 87-101
Sun, Shulin; He, Qiong; Xiao, Shiyi; Xu, Qin; Li, Xin; Qu, Che; Zhou, Lei Article

2012 2

Effect of oxidation on the mechanical properties of liquid gallium and eutectic gallium-indium
Physics of Fluids, v. 24, (6), April 2012, article number 063101
Xu, Qin; Oudalov, N.; Guo, Qiti; Jaeger, Heinrich M.; Brown, Eric Article
Gradient-index meta-surfaces as a bridge linking propagating waves and surface waves
Nature Materials, v.11, (5), May 2012, p. 426-431
Sun, Shulin; He, Qiong; Xiao, Shiyi; Xu, Qin; Li, Xin; Zhou, Lei Article

2011 1

Subdiffusion of a sticky particle on a surface
Physical Review Letters, v. 106, (22), June 2011, article number 228102
Xu, Qin; Feng, L.; Sha, R.; Seeman N. C.; Chaikin, P. M. Article


Expand All Collapse All


Article 2

Multiscale Soft Surface Instabilities for Adhesion Enhancement
Materials, v. 15, (3), January 2022, article number 852
Vilavinalthundil Mohanan, Vaisakh; Mak, Ho Yi Lydia; Gurung, Nishan; Xu, Qin
The role of crosslinking density in surface stress and surface energy of soft solids
Soft Matter, v. 18, (3), January 2022, p. 507-513
Zhao, Weiwei; Zhou, Jianhui; Hu, Haitao; Xu, Chang; Xu, Qin


Expand All Collapse All


Article 2

Contact lines on stretched soft solids: Modeling anisotropic surface stresses
Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, v. 447, (2245), January 2021, article number 20200673
Heyden, Stefanie; Bain, Nicolas; Xu, Qin; Style, Robert W.; Dufresne, Eric R.
Droplets sit and slide anisotropically on soft, stretched substrates
Physical Review Letters, v. 126, (15), April 2021, article number 158004
Smith-mannschott, Katrina; Xu, Qin; Heyden, Stefanie; Bain, Nicolas; Snoeijer, Jacco; Dufresne, Eric; Style, Robert


Expand All Collapse All


Article 2

Stress fluctuations and shear thickening in dense granular suspensions
Journal of Rheology, v. 64, (2), March 2020, article number 10.1122/1.5133037, p. 321-328
Xu, Qin; Singh, Abhinendra; Jaeger, Heinrich M.
Viscoelastic and Poroelastic Relaxations of Soft Solid Surfaces
Physical Review Letters, v. 125, (23), 30 November 2020, article number 238002
Xu, Qin; Wilen, Lawrence A.; Jensen, Katharine E.; Style, Robert W.; Dufresne, Eric R.


Expand All Collapse All


Article 2

Effects of strain-dependent surface stress on the adhesive contact of a rigid sphere to a compliant substrate
Soft Matter, v. 15, (10), March 2019, p. 2223-2231
Liu, Zezhou; Jensen, Katherine E.; Xu, Qin; Style, Robert W.; Dufresne, Eric R.; Jagota, Anand; Hui, Chung Yuen
Singular dynamics in the failure of soft adhesive contacts
Soft Matter, v. 15, (6), February 2019, p. 1327-1334
Berman, Justin D.; Randeria, Manjari; Style, Robert W.; Xu, Qin; Nichols, James R.; Duncan, Aidan J.; Loewenberg, Michael; Dufresne, Eric R.; Jensen, Katherine E.

Conference paper 2

Direct observations of dewetting relaxation at the interface of soft gels
APS March Meeting 2019, v. 64, (2), March 2019, article number R58.00010
Xu, Qin; Wilen, Lawrence; Style, Robert; Dufresne, Eric
Direct observations of dewetting relaxation at the interface of soft gels
D-Materials Colloquium 2019, ETH Zurich, Zurich, Switzerland, 4 September 2019
Xu, Qin


Expand All Collapse All


Article 3

Liquid-liquid phase separation in an elastic network
Physical Review X, v. 8, (1), February 2018, article number 011028
Style, Robert W.; Sai, Tianqi; Fanelli, Nicolo; Ijavi, Mahdiye; Smith-Mannschott, Katrina; Xu, Qin; Wilen, Lawrence A.; Dufresne, Eric R.
Surface elastic constants of a soft solid
Soft Matter, v. 14, (6), February 2018, p. 916-920
Xu, Qin; Style, Robert W.; Dufresne, Eric R.
The mechanical equilibrium of soft solids with surface elasticity
Soft Matter, v. 14, (22), June 2018, p. 4569-4576
Style, Robert W.; Xu, Qin

Conference paper 2

Surface tension and surface elasticity of soft solids
Martin A. Fisher School of Physics Colloquium 2018, Brandeis University, Waltham, USA, 25 January 2018
Xu, Qin
Why soft is great?
The 4th Beihang University Vision Forum for International Young Scholars, Beijing, China, 7 May 2018
Xu, Qin


Expand All Collapse All


Article 2

Direct measurement of strain-dependent solid surface stress
Nature Communications, v. 8, (1), September 2017, article number 555
Xu, Qin; Jensen, Katharine E.; Boltyanskiy, Rostislav; Sarfati, Raphael; Style, Robert W.; Dufresne, Eric R.
Strain-dependent solid surface stress and the stiffness of soft contacts
Physical Review X, v. 7November 2017, (4), November 2017, article number 041031
Jensen, Katherine E.; Style, Robert W.; Xu, Qin; Dufresne, Eric R.

Conference paper 1

Direct measurements of surface tension of strained soft solids
Soft Matter Interfaces: From Biology to Engineering Applications 2017, Monte Verita, Switzerland, 5-10 November 2017
Xu, Qin


Expand All Collapse All


Conference paper 2

Direct measurements of surface stress of stretched soft solids
The First International Young Scholars Shenzhen Forum of Sun Yat-sen University, Guangzhou, China, 24-26 December 2016
Xu, Qin
Why soft is great?
Fudan-Guanghua International Forum for Young Scholars 2016, Shanghai, China, 26-27 December 2016
Xu, Qin


Expand All Collapse All


Article 4

Controlling electromagnetic waves with meta-surfaces
SPIE: Newsroom, 24 February 2014, article number 5337
He, Qiong; Xiao, Shiyi; Li, Xin; Xu, Qin; Sun, Shulin; Zhou, Lei
Dense suspension splat: Monolayer spreading and hole formation after impact
Physical Review Letters, v. 113, (4), July 2014, article number 044502
Lubbers, Luuk A.; Xu, Qin; Wilken, Sam; Zhang, Wendy W.; Jaeger, Heinrich M.
Fast imaging technique to study drop impact dynamics of non-newtonian fluids
Journal of Visualized Experiments, v. 85, March 2014, article number e51249
Xu, Qin; Peters, Ivo; Wilken, Sam; Brown, Eric; Jaeger, Heinrich
Shear thickening in highly viscous granular suspensions
EPL (Europhysics Letters), v. 107, (6), September 2014, article number 68004
Xu, Qin; Majumdar, Sayantan; Brown, Eric; Jaeger, Heinrich M.


Expand All Collapse All


Article 4

Cinnamate-based DNA photolithography
Nature Materials, v. 12, (8), August 2013, p. 747-753
Feng. Lang; Romulus, Joy; Li, Minfeng; Sha, Ruojie; Royer, John; Wu, Kun Ta; Xu, Qin; Seeman, Nadrian C.; Weck, Marcus; Chaikin, Paul
Impact dynamics of oxidized liquid metal drops
Physical Review E - Statistical, Nonlinear, and Soft Matter Physics, v.87 , (4), April 2013, article number 043012
Xu, Qin; Brown, Eric; Jaeger, Heinrich M.
Splashing onset in dense suspension droplets
Physical Review Letters, v. 111, (2), July 2013, article number 028301
Peters, Ivo R.; Xu, Qin; Jaeger, Heinrich M.
梯度特异介质表面研究进展
激光与光电子学进展, v. 2013, (8), 2013, p. 87-101
Sun, Shulin; He, Qiong; Xiao, Shiyi; Xu, Qin; Li, Xin; Qu, Che; Zhou, Lei


Expand All Collapse All


Article 2

Effect of oxidation on the mechanical properties of liquid gallium and eutectic gallium-indium
Physics of Fluids, v. 24, (6), April 2012, article number 063101
Xu, Qin; Oudalov, N.; Guo, Qiti; Jaeger, Heinrich M.; Brown, Eric
Gradient-index meta-surfaces as a bridge linking propagating waves and surface waves
Nature Materials, v.11, (5), May 2012, p. 426-431
Sun, Shulin; He, Qiong; Xiao, Shiyi; Xu, Qin; Li, Xin; Zhou, Lei


Expand All Collapse All


Article 1

Subdiffusion of a sticky particle on a surface
Physical Review Letters, v. 106, (22), June 2011, article number 228102
Xu, Qin; Feng, L.; Sha, R.; Seeman N. C.; Chaikin, P. M.


Expand All Collapse All


2016 2

Direct measurements of surface stress of stretched soft solids
The First International Young Scholars Shenzhen Forum of Sun Yat-sen University, Guangzhou, China, 24-26 December 2016
Xu, Qin Conference paper
Why soft is great?
Fudan-Guanghua International Forum for Young Scholars 2016, Shanghai, China, 26-27 December 2016
Xu, Qin Conference paper

2014 4

Controlling electromagnetic waves with meta-surfaces
SPIE: Newsroom, 24 February 2014, article number 5337
He, Qiong; Xiao, Shiyi; Li, Xin; Xu, Qin; Sun, Shulin; Zhou, Lei Article
Dense suspension splat: Monolayer spreading and hole formation after impact
Physical Review Letters, v. 113, (4), July 2014, article number 044502
Lubbers, Luuk A.; Xu, Qin; Wilken, Sam; Zhang, Wendy W.; Jaeger, Heinrich M. Article
Fast imaging technique to study drop impact dynamics of non-newtonian fluids
Journal of Visualized Experiments, v. 85, March 2014, article number e51249
Xu, Qin; Peters, Ivo; Wilken, Sam; Brown, Eric; Jaeger, Heinrich Article
Shear thickening in highly viscous granular suspensions
EPL (Europhysics Letters), v. 107, (6), September 2014, article number 68004
Xu, Qin; Majumdar, Sayantan; Brown, Eric; Jaeger, Heinrich M. Article

2013 4

Cinnamate-based DNA photolithography
Nature Materials, v. 12, (8), August 2013, p. 747-753
Feng. Lang; Romulus, Joy; Li, Minfeng; Sha, Ruojie; Royer, John; Wu, Kun Ta; Xu, Qin; Seeman, Nadrian C.; Weck, Marcus; Chaikin, Paul Article
Impact dynamics of oxidized liquid metal drops
Physical Review E - Statistical, Nonlinear, and Soft Matter Physics, v.87 , (4), April 2013, article number 043012
Xu, Qin; Brown, Eric; Jaeger, Heinrich M. Article
Splashing onset in dense suspension droplets
Physical Review Letters, v. 111, (2), July 2013, article number 028301
Peters, Ivo R.; Xu, Qin; Jaeger, Heinrich M. Article
梯度特异介质表面研究进展
激光与光电子学进展, v. 2013, (8), 2013, p. 87-101
Sun, Shulin; He, Qiong; Xiao, Shiyi; Xu, Qin; Li, Xin; Qu, Che; Zhou, Lei Article

2012 2

Effect of oxidation on the mechanical properties of liquid gallium and eutectic gallium-indium
Physics of Fluids, v. 24, (6), April 2012, article number 063101
Xu, Qin; Oudalov, N.; Guo, Qiti; Jaeger, Heinrich M.; Brown, Eric Article
Gradient-index meta-surfaces as a bridge linking propagating waves and surface waves
Nature Materials, v.11, (5), May 2012, p. 426-431
Sun, Shulin; He, Qiong; Xiao, Shiyi; Xu, Qin; Li, Xin; Zhou, Lei Article

2011 1

Subdiffusion of a sticky particle on a surface
Physical Review Letters, v. 106, (22), June 2011, article number 228102
Xu, Qin; Feng, L.; Sha, R.; Seeman N. C.; Chaikin, P. M. Article






Teaching Assignment

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2021-22 Winter 0 2021-22 Fall 1 2020-21 Summer 1 2020-21 Spring 1 2020-21 Winter 0 2020-21 Fall 2

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PHYS3152 Methods of Experimental Physics I


UROP1100D Undergraduate Research Opportunities Series 1


SCIE4500 IRE Research Project II


PHYS3152 Methods of Experimental Physics I
SCIE3500 IRE Research Project I


No Teaching Assignments


No Teaching Assignments






Research Postgraduate (RPG) Supervision From January 2019 to December 2022 (As of 30 January 2022)

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Current RPGs

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Doctor of Philosophy QIAN, Wenjie
Nano Science and Technology( 2021 - )

VILAVINALTHUNDIL MOHANAN, Vaisakh
Physics( 2021 - )

HU, Haitao
Nano Science and Technology( 2020 - )

ZHAO, Weiwei
Nano Science and Technology( 2020 - )









ProjectsFrom January 2020 to December 2022

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All Projects 2

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No Projects.
Investigation of wetting induced phase separation on soft porous solids


研究由浸润引起的柔性多孔固体表面上的相分离现象 Leading


RGC - General Research Fund


Project Team (HKUST)
XU Qin (Lead)


2022 -




Experimental study of interfacial mechanics of soft solids using interferometry


利用干涉学方法进行软物质固体表面力学的实验研究 Leading


RGC - Early Career Scheme


Project Team (HKUST)
XU Qin (Lead)


2020 -