Journal Papers

Google Scholar Link / ResearcherID Link

#Denotes Graduate /Undergraduate students and summer interns working/worked with Prof. Das in University of Maryland and University of Alberta

*Denotes the corresponding authorship

(Topic based demarcation: Polymer (P); Water-2D-Material and water-nanomaterial interactions (W2D); Flows in nanoconfinements (FN); Lipid bilayer membranes (LBL); Transport in Wood (TW); Ions at Interfaces (INT); 3D Printing (3DP); Other Topics in Soft Matter (OSM))

Total number of publications in Nature-Indexed Journals (List is here): 21

Total number of publications in top 100 h5 journals (List is here): 25

Total number of publications in either Nature-Indexed or top h5 journal: 31 Journals


Major topic wise summary of the number of papers: 3DP (2); TW (2); W2D (4); LBL (2); P (6)

146. B. S. Chava#, Y. Wang#, V. S. Sivasankar#, and S. Das*, “Water-free Localization of Anion at Anode for Small Concentration Water-in-Salt Electrolytes Confined in Boron-Nitride Nanotube.” Cell Reports Physical Sciences, 1, 100246 (2020) (Topic: W2D). (media coverage:

145. P. R. Desai#, S. Brahmachari, J. F. Marko, S. Das*, and K. C. Neumann*, “Coarse-Grained Modelling of DNA Plectoneme Pinning in the Presence of Base-Pair Mismatches.” Nucleic Acids Research, 48, 10713–10725 (2020) (Topic: P). (media coverage:

144. H. S. Sachar#, T. H. Pial#, B. S. Chava#, and S. Das*, “All-atom Molecular Dynamics Simulations of Weak Polyionic Brushes: Influence of Charge Density on the Properties of Polyelectrolyte Chains, Brush-Supported Counterions, and Water Molecules.” Soft Matter, 16, 7808-7822 (2020) (Topic: P).

143. E. Wagemann#, S. Misra, S. Das, and S. K. Mitra, “Quantifying water friction in misaligned graphene channels under Ångström confinements.” ACS Applied Materials and Interfaces, 12, 35757–35764 (2020) (Topic: W2D).

142. V. S. Sivasankar#, S. A. Etha#, H. S. Sachar#, and S. Das*, “Theoretical study on the massively augmented electroosmotic water transport in polyelectrolyte brush functionalized nanoslits.” Physical Review E, 102, 013103 (2020) (Topic: P).

141. S. A. Etha#, V. S. Sivasankar#, H. S. Sachar#, and S. Das*, “Strong Stretching Theory for pH-Responsive Polyelectrolyte Brushes in Large Salt Concentrations.” Physical Chemistry Chemical Physics, 22, 13536-13553 (2020) (Topic: P).

140. H. Jing#, Y. Wang#, P. R. Desai#, K. Ramamurthi, and S. Das*, “Formation and Properties of Self-Assembled Nanoparticle-Supported Lipid Bilayer Probed Through Molecular Dynamics Simulations.” Langmuir, 36, 5524–5533 (2020). (Topic: LBL)

139. V. S. Sivasankar#, S. A. Etha#, H. S. Sachar#, and S. Das*, “Ionic Diffusioosmotic Transport in Nanochannels Grafted with pH-responsive Polyelectrolyte Brushes Modelled Using Augmented Strong Stretching Theory.” Physics of Fluids, 32, 042003 (2020) (Topic: P)

138. E. Wagemann, Y. Wang#, S. Das, S. K. Mitra, “On the Wetting Translucency of Hexagonal Boron Nitride.” Physical Chemistry Chemical Physics, 22, 7710-7718 (2020). (Selected as the Back Cover Article of the 21 April, 2020 Issue of the journal)(Topic: W2D)

137. H. S. Sachar#, T. H. Pial#, P. R. Desai#, S. A. Etha#, Y. Wang#, P. W. Chung, and S. Das*, “Densely Grafted Polyelectrolyte Brushes Trigger “Water-in-Salt” like Scenarios and Ultraconfinement Effect.” Matter, DOI: 10.1016/j.matt.2020.02.022. (Topic: P) (media coverage: UMDRIGHTNOW;

136. S. He, C. Chen, G. Chen#, J. Dai, J. Song, F. Jiang, H. Xie, Y. Yao, C. Jia, E. Hitz, B. Liu, F. Chen, A. Gong, S. Das, and L. Hu, “A High-Performance, Scalable Wood-based Filtration Device with a Reversed-Tree Design.” Chemistry of Materials, 32, 1887-1895 (2020). (Topic: TW)

135. S. A. Etha#, V. S. Sivasankar#, H. S. Sachar#, and S. Das*, “Coating for Preventing Non-Specific Adhesion Mediated Biofouling in Salty Systems: Effect of the Electrostatic and van der Waals Interactions.” Electrophoresis, DOI: 10.1002/elps.201900348. (Topic: LBL)

134. V. S. Sivasankar#, H. S. Sachar#, S. Sinha, D. R. Hines*, and S. Das*, “3D Printed Microdroplet Curing: Unravelling the Physics of On-spot Photopolymerization.” ACS Applied Polymer Materials, 2, 966-976 (2020). (Topic: 3DP)

133. E. Wagemann, Y. Wang#, S. Das, and S. K. Mitra, “Wettability of Nanostructured Hexagonal Boron Nitride Surfaces: Molecular Dynamics Insights on the Effect of Wetting Anisotropy.” Physical Chemistry Chemical Physics, 24, 2488-2497 (2020). (Topic: W2D)

132. W. Gan, C. Chen, Z. Wang, Y. Pei, W. Ping, S. Xiao, J. Dai, Y. Yao, S. He, B. Zhao#, S. Das, B. Yang, P. B. Sunderland, and L. Hu, “Fire-Resistant Structural Material Enabled by An Anisotropic Thermally Conductive Hexagonal Boron Nitride Coating.” Advanced Functional Materials, 30, 1909196 (2020). (Topic: TW)

131. N. Dalal#, Y. Gu#, G. Chen#, D. R. Hines, A. Dasgupta, and S. Das, “Effects of Gas Flow Rates on Quality of Aerosol Jet Printed Traces with Nanoparticle Conducting Ink.” ASME Journal of Electronic Packaging, 142, 011012 (2020). (Topic: 3DP)


Major topic wise summary of the number of papers: P (4); 3DP (4); LBL (3); TW (3); OSM (1), FN (1)

130. T. H. Pial#, Y. Wang#, and S. Das*, “Non-Monotonic Dependence of Fluid Dissipation on Fluid Density in Fluid-Coupled Nanoresonators.” Applied Physics Letters, 115, 251601 (2019). (Topic: FN)

129. B. Zhao#, Y. Wang#, S. Sinha#, C. Chen, D. Liu, A. Dasgupta, L. Hu, and S. Das*, “Shape-driven Arrest of Coffee Stain Effect Drives the Fabrication of Carbon-Nanotube-Graphene-Oxide Inks for Printing Embedded Structures and Temperature Sensors.” Nanoscale, 11, 23402–23415 (2019) (Topic: 3DP).

128. H. S. Sachar#, V. S. Sivasankar#, S. A. Etha#, G. Chen, and S. Das*, “Ionic Current in Nanochannels Grafted with pH-Responsive Polyelectrolyte Brushes Modelled Using Augmented Strong Stretching Theory.” Electrophoresis, DOI: 10.1002/elps.201900248 (2019). (Topic: P)

127. Y. Gu#, D. Park, S. Gonya, J. Jendrisak, S. Das*, and D. R. Hines*, “Direct-write Printed Broadband Inductors.” Additive Manufacturing, 30, 100843 (2019). (Topic: 3DP)

126. N. Dalal#, Y. Gu#,  D. R. Hines, A. Dasgupta, and S. Das*, “Cracks in the 3D-Printed Conductive Traces of Silver Nanoparticle Ink.” Journal of Micromechanics and Microengineering, 29, 097001 (2019). (Topic: 3DP)

125. H. S. Sachar#, V. S. Sivasankar#, and S. Das*, “Electrokinetic Energy Conversion in Nanochannels Grafted with pH-responsive Polyelectrolyte Brushes Modelled Using Augmented Strong Stretching Theory.” Soft Matter15, 5973-5986 (2019). (Topic: P)

124. P. R. Desai#, Y. Wang#, H. S. Sachar#, H. Jing#, S. Sinha#, and S. Das*, “Supersolvophobic Soft Wetting: Nanoscale Elastocapillarity, Adhesion, and Retention of a Drop Behaving as a Nanoparticle” Matter, DOI: 10.1016/j.matt.2019.07.001 (2019). (Topic: OSM) (media coverage:

123. K. Jiang, F. Khan, J. Thomas, P. R. Desai#, A. Phani, S. Das*, and T. Thundat, “Thermomechanical Responses of Microfluidic Cantilever Capture DNA Melting and Properties of DNA Pre-melting States Using Picolitres of DNA Solution.” Applied Physics Letters, 114, 173703 (2019). (Topic: P)

122. S. He, C. Chen, Y. Kuang, R. Mi, Y. Liu, Y. Pei, W. Kong, W. Gan, H. Xie, E. Hitz, C. Jia, X. Chen, A. Gong, J. Liao, J. Li, Z. Ren, B. Yang, S. Das, L. Hu, “Nature-Inspired Salt Resistant Bimodal Porous Solar Evaporator for Efficient and Stable Water Desalination.” Energy and Environmental Science12, 1558-1567 (2019) (Topic: TW)

121. H. S. Sachar#, V. S. Sivasankar#, and S.Das*, “Electrostatics and Interactions of an Ionizable Silica Nanoparticle Approaching a PlasmaMembrane.” Langmuir35, 4171-4181 (2019). (Topic: LBL)

120. Y. Kuang, C. Chen, G. Chen#, Y. Pei, G. Pastel, C. Jia, J. Song, R. Mi, B. Yang, S. Das, L. Hu, “Bioinspired Solar-Heated Carbon Absorbent for Efficient Clean-Up of Highly Viscous Crude Oil.” Advanced Functional Materials29, 1900162 (2019). (Topic: TW)

119. T. Li, X. Zhang, S. D. Lacey, R. Mi, X. Zhao, F. Jiang, J. Song, Z. Liu, G. Chen#, J. Dai, Y. Yao, S. Das, R. Yang, R. Briber, L. Hu, “Cellulose Ionic Conductors with High Differential Thermal Voltage for Low-Grade Heat Harvesting.” Nature Materials, 18, 608-613 (2019) (Topic: TW) (media coverage: ScienceDailyEurekalertphys.orgnanowerkNanotechnology NowFree Press JournalBusiness Standard,R&DThe Indian ExpressEconomic TimesECN, Maryland Today)

118. H. Jing#, S. Sinha#, H. S. Sachar#, and S. Das*, “Interactions of Gold and Silica Nanoparticles with Plasma Membranes Get Distinguished by the van der Waals Forces: Implications for Drug Delivery, Imaging, and Theranostics.” Colloids and Surfaces B: Biointerfaces, 177, 433-439 (2019). (Topic: LBL)

117. H. Jing#, Y. Wang#, P. R. Desai#, K. S. Ramamurthi, and S. Das*, “Nanovesicles versus Nanoparticle-Supported Lipid Bilayers: Massive Differences in Bilayer Structures and in Diffusivities of Lipid Molecules and Nanoconfined Water.” Langmuir35, 2702-2708 (2019). (Topic: LBL)

116. H. S. Sachar#, V. S. Sivasankar#, and S.Das*, “Revisiting the Strong Stretching Theory for pH-Responsive Polyelectrolyte Brushes: Effects of Consideration of Excluded Volume Interactions and an Expanded Form of the Mass Action Law.” Soft Matter15, 559-574 (2019) (Selected as the Back Cover Article). (Topic: P) (media coverage:

115. Y. Gu#, D. Park, D. Bowen, S. Das*, D. R. Hines*, “Direct Write Printed, Solid-Core Solenoid Inductors with Commercially Relevant Inductances.” Advanced Materials Technologies4, 1800312 (2019). (Topic: 3DP)


Major topic wise summary of the number of papers: P (6); W2D (2); FN (1); LBL (4); TW (3); INT (1); 3DP (1); OSM (1)

114. C. Wang, S. Wang, G. Chen#, W. Kong, W. Ping, J. Dai, G. Pastel, H. Xie, S. He, S. Das, and L. Hu, “Flexible, Bio-Compatible Nanofluidic Sodium Ion Conductor.” Chemistry of Materials98, 7707-7713 (2018). (Topic: TW)

113. Y. Wang#, K. Ahuja#, S. Sinha#, P. R. Desai#, and S. Das*, “Water-Holey-Graphene Interactions: Route to Highly Enhanced Water-Accessible Graphene Surface Area.” ACS Applied Nano Materials1, 5907-5919 (2018). (Topic: W2D)

112. G. Chen#, J. Patwary#, H. S. Sachar#, and S. Das*, “Electrokinetics in nanochannels grafted with poly-zwitterionic brushes.” Microfluidics and Nanofluidics22, 122 (2018). (Topic: P)

111. Y. Wang#, S. Sinha#, P. R. Desai#, H. Jing#, and S. Das*, “Ion at air-water interface enhances capillary wave fluctuations: Energetics of ion adsorption.” Journal of the American Chemical Society140, 12853–12861 (2018). (Topic: INT) (media coverage:

110. R. S. Maheedhara#, H. Jing#, H.  S. Sachar#, and S. Das*, “Highly enhanced liquid flows via thermoosmotic effects in soft and charged nanochannels.” Physical Chemistry Chemical Physics20, 24300-24316 (2018). (Topic: P)

109. P. R. Desai# and S. Das*, “Lubrication in polymer brush bilayers in weak interpenetration regime: Molecular dynamics simulations and scaling theories.” Physical Review E, 98, 022503 (2018). (Topic: P)

108. R. S. Maheedhara#, H. S. Sachar#, H. Jing#, and S. Das*, “Ionic Diffusoosmosis in Nanochannels Grafted with End-charged Polyelectrolyte Brushes.” The Journal of Physical Chemistry B122, 7450-7461 (2018). (Topic: P)

107. S. Karpitschka, S. Das, M. van Gorcum, H. Perrin, B. Andreotti, and J. H. Snoeijer, “Soft Wetting: Models based on energy dissipation or on force balance are equivalent.” Proceedings of the National Academy of Sciences, USA, DOI: 10.1073/pnas.1808870115  (2018). (Topic: OSM)

106. S. Sinha#, H. S. Sachar#, and S. Das*, “Electrostatically-motivated design of biomimetic nanoparticles: Promoting specific adhesion and preventing nonspecific adhesion simultaneously.” Applied Physics Letters112, 243702(1-5) (2018). (Topic: LBL)

105. Y. Wang#, S. Sinha#, K. Ahuja#, P. R. Desai#, J. Dai, L. Hu, and S. Das*, “Dynamics of a Water Nanodrop Through a Holey Graphene Matrix: Role of Surface Functionalization, Capillarity, and Applied Forcing.” The Journal of Physical Chemistry C122, 12243–12250 (2018). (Topic: W2D)

104. G. Chen#, H. S. Sachar#, and S. Das*, “Efficient Electrochemomechanical Energy Conversion in Nanochannels Grafted with End-charged Polyelectrolyte Brushes at Medium and High Salt Concentration.” Soft Matter14, 5246-5255 (2018). (Topic: P)

103. S. Sinha#, H. Jing#, H. S. Sachar#, S. Das*, “Surface charges promote non-specific nanoparticle adhesion to stiffer membranes.” Applied Physics Letters, 112, 163702(1-5) (2018).(media coverage: LBL)

102. G. Chen#, Y. Gu#, H. Tsang, D. R. Hines, and S. Das*, “The Effect of Droplet Sizes on Overspray in Aerosol-Jet Printing.” Advanced Engineering Materials20, 1701084 (2018). (Selected as the Back Cover Article of the August 2018 issue of the journal). (Topic: 3DP)

101. H. Jing# and S. Das*, “Theory of diffusioosmosis in a charged nanochannel.” Physical Chemistry Chemical Physics, 20, 10204-10212 (2018). (Topic: FN)

100. P. R. Desai#, S. Sinha#, and S. Das*, “Polyelectrolyte Brush Bilayers in Weakly Interpenetration Regime: Scaling Theory and Molecular Dynamics Simulations.” Physical Review E97, 032503(1-8) (2018). (media coverage: (Topic: P)

 99. T. Li, H. Liu, X. Zhao, G. Chen#, J. Dai, G. Pastel, C. Jia, C. Chen, S. Das, R. Yang, and L. Hu, “Scalable and Highly Efficient Mesoporous Wood-Based Solar Steam Generation Device: Localized Heat, Rapid Water Transport”. Advanced Functional Materials28, 1707134 (2018). (Topic: TW)

98. S. Sinha#, H. S. Sachar#, and S. Das*, “Effect of plasma membrane semi-permeability in making the membrane electric double layer capacitances significant.” Langmuir34, 1760-1766 (2018). (Topic: LBL)

97. H. Jing# and S. Das*, “Electric Double Layer electrostatics of lipid-bilayer-encapsulated nanoparticles: Towards a better understanding of protocell electrostatics.” Electrophoresis39, 752-759 (2018). (Topic: LBL)

96. H. Liu, C. Chen, G. Chen#, Y. Kuang, X. Zhao, J. Song, C. Jia, X. Xu, E. Hitz, H. Xie, S. Wang, F. Jiang, T. Li, Y. Li, A. Gong, R. Yang, S. Das, and L. Hu, “High-Performance Solar Steam Device with Layered Channels: Artificial Tree with a Reversed Design.” Advanced Energy Materials, 8, 1701616  (2018). (Topic: TW)


Major topic wise summary of the number of papers: P (3); W2D (3); FN (0); LBL (3); TW (4); INT (0); 3DP (2); OSM (3)

95. S. Sinha#, H. Jing#, H. S. Sachar#, S. Das*, “Role of plasma membrane surface charges in dictating the feasibility of membrane-nanoparticle interactions.” Applied Physics Letters, 111, 263702 (2017). (Topic: LBL)

94. C. Jia, Y. Li,  Z. Yang, G Chen#, Y. Yao, F. Jiang, Y. Kuang, G. Pastel, H. Xie, B. Yang, S. Das, and L. Hu, “Rich Mesostructures Derived from Natural Woods toward Energy-water Nexus.” Joule1, 588-5999 (2017). (Topic: TW)

93. Y. Wang#, S. Sinha#, L. Hu, and S. Das*, “Interaction between Water Drop and Holey Graphene: Retarded Imbibition and Generation of Novel Water-Graphene Wetting States.” Physical Chemistry Chemical Physics, 19, 27421-27434 (2017). (Topic: W2D)

92. M. Zhu$, Y. Li$, G. Chen#$, Z. Yang, X. Luo, Y. Wang#, J. Dai, S. D. Lacey, C. Wang, C. Jia, J. Wan, Y. Yao, B. Yang, Z. Yu, S. Das*, L. Hu*, “Tree-Inspired Design for High-Efficiency Water Extraction.” Advanced Materials, DOI: 10.1002/adma.201704107 (2017). ($: Co-first authors). (media coverage:,laboratoryequipment.comScienceDaily) (Topic: TW)

91. Y. Gu#, D. R. Hines*, V. Yun, M. Antoniak, and S. Das*, “Aerosol-Jet Printed Fillets for Well-Formed Electrical Connections Between Different Leveled Surfaces.” Advanced Materials Technologies2, 1700178 (2017). (Topic: 3DP)

90. A. Pandey, S. Karpitschka, L. A. Lubbers, J. H. Weijs, L. Botto, S. Das, B. Andreotti, and J. H. Snoeijer, “Dynamical Theory of the Inverted Cheerios Effect.” Soft Matter, 13, 6000-6010 (2017). (Topic: OSM)

89. S. Sinha#, H. Jing#, and S. Das*, “Positive zeta potential of a negatively-charged semi-permeable plasma membrane.” Applied Physics Letters111, 063702 (2017). (Topic: LBL)

88. Y. Gu#, D. Gutierrez, S. Das*, and D. Hines*, “Inkwells for On-Demand Deposition Rate Measurement in Aerosol-Jet Based 3D Printing.” Journal of Micromechanics and Microengineering, 27, 097001 (2017). (Topic: 3DP)

87. P. R. Desai#, S. Sinha#, and S. Das*, “Compression of polymer brushes in weak interpenetration regime: Scaling Theory and Molecular Dynamics Simulations.” Soft Matter13, 4159-4166 (2017). (Topic: P)

86. Y. Wang#, J. E. Andrews#, L. Hu, and S. Das*, “Drop Spreading on a Superhydrophobic Surface: Pinned Contact Line and Bending Liquid Surface.” Physical Chemistry Chemical Physics, 19, 14442-14452 (2017). (Topic: W2D)

85. J. E. Andrews#, Y. Wang#, S. Sinha#, P. W. Chung, and S. Das*, “Roughness-Induced Chemical Heterogeneity Leads to Large Hydrophobicity in Wetting-Translucent Nanostructures.” The Journal of Physical Chemistry C, 121, 10010-10017 (2017). (Topic: W2D)

84. F. Chen, A. Gong, M. Zhu, G. Chen#, S. Lacey, F. Feng, Y. Li, Y. Wang, J. Dai, Y. Yao, J. Song, B. Liu, K. Fu, S. Das, and L. Hu, “Mesoporous, Three-Dimensional Wood Membrane Decorated with Nanoparticles for Highly Efficient Water Treatment.”, ACS Nano11, 4275-4282 (2017).  (media coverage: IndiaTodayBusiness Standard, Indiaphys.orgwoodworkingnetwork.comBusiness RecorderScience DailyNews Wiseenme.umd.edueng.umd.eduYoutube Video. (Topic: TW)

83. S. Sinha#, H. Jing#, and S. Das*, “Charge Inversion and External Salt Effect in Semi-Permeable Membrane Electrostatics.” Journal of Membrane Science533, 364-377 (2017). (Topic: LBL) 

82. G. Chen# and S. Das*, “Massively enhanced electroosmotic transport in nanochannels grafted with end-charged polyelectrolyte brushes.” The Journal of Physical Chemistry B121, 3130-3141 (2017). (Topic: P)

81. H. Jing#, S. Sinha#, and S. Das*, “Elasto-electro-capillarity: Drop equilibrium on a charged, elastic solid.” Soft Matter13, 554-566 (2017). (selected as the back cover article) (media coverage: (Topic: OSM)

80. G. Chen# and S. Das*, “Thermodynamics, electrostatics, and ionic current in nanochannels grafted with pH-responsive end-charged polyelectrolyte brushes.” Electrophoresis, 38, 720-729 (2017). (Topic: P)

79. Y. Wang, G. Sun, J. Dai, G. Chen#, J. Morgenstern, Y. Wang#, S. Kang, M. Zhu, S. Das, L. Cui, and L. Hu, “High-Performance, Low Tortuosity Wood Carbon Monolith Reactor.” Advanced Materials, 29, 1604257 (2017).(Topic: TW)

78. S. Sinha#, V. Padia#, K. I. Bae#, G. Chen#, and S. Das*, “Effect of electric double layer on electro-spreading dynamics of electrolyte drops” Colloids and Surfaces A: Physicochemical and Engineering Aspects514, 209-217 (2017). (Topic: OSM) 


Major topic wise summary of the number of papers: P (4); W2D (1); FN (1); LBL (0); TW (0); INT (0); 3DP (0); OSM (6)

77. M. Razi, S. Sinha#, P. R. Waghmare, S. Das*, and T. Thundat, “Effect of Steam-Assisted Gravity Drainage (SAGD) produced water properties on oil/water transient interfacial tension.” Energy and Fuels, 30, 10714-10720 (2016). (Topic: OSM)

76. H. Li#, G. Chen#, and S. Das*, “Electric double layer electrostatics of pH-responsive spherical polyelectrolyte brushes in the decoupled regime.” Colloids and Surfaces BBiointerfaces147, 180-190 (2016). (Topic: P)

75. S. Sinha#, L. Myers#, and S. Das*, “Effect of solvent polarization on electroosmotic transport in a nanofluidic channel.” Microfluidics and Nanofluidics20, 119 (2016). (Topic: FN)

74. G. Chen# and S. Das*, “Anomalous shrinking-swelling of nano-confined end charged polyelectrolyte brushes: Interplay of confinement and electrostatic effects.” Journal of Physical Chemistry B, 120, 6848-6857 (2016). (Topic: P)

73. J. Andrews#, S. Sinha#, P. W. Chung, and S. Das*, “Wetting dynamics of a water nanodrop on graphene.” Physical Chemistry Chemical Physics, 18, 23482-23493 (2016). (Selected as the Inside Front Cover Article) (media coverage: (Topic: W2D)

72. G. Chen#, H. Li#, and S. Das*, “Scaling relationships for spherical polymer brushes revisited.” Journal of Physical Chemistry B, 120, 5272-5277 (2016). (Topic: P)

71. S. Karpitschka, A. Pandey, L.A. Lubbers, J.H. Weijs, L. Botto, S. Das, B. Andreotti, and J.H. Snoeijer, “Inverted Cheerios effect: Liquid drops attract or repel by elasto-capillarity.” Proceedings of the National Academy of Sciences, USA, 113, 7403-7477 (2016) (media coverage: New York TimesClarke,, enme.umd.eduyoutube_movie (Topic: OSM)

70. Z. Liu, Y. Wang, K. Fu, Z. Wang, Y. Yao, J. Wan, J. Dai, S. Das*, and L. Hu, “Solvo-thermal microwave-powered two-dimensional materials exfoliation.” Chemical Communications52, 5757-5760 (2016). (Topic: OSM)

69. S. Sinha# and S. Das*, “Role of Shuttleworth effect in adhesion on elastic surfaces.” MRS Advances (DOI: 10.1557/adv.2016.218) (2016). (Topic: OSM)

68. Z. Liu, L. Zhang, R. Wang, S. Poyraz, J. Cook, M. Bozack, S. Das, X. Zhang, and L. Hu, “Ultrafast microwave nano-manufacturing of fullerene-like metal chalcogenides.” Scientific Reports, 6, 22503(1-8) (2016). (media coverage: (Topic: OSM)

67. S. Sinha#, K. I. Bae#, and S. Das*, “Electric Double Layer effects in water separation from water-in-oil emulsions.” Colloids and Surfaces A: Physicochemical and Engineering Aspects489, 216-222 (2016). (Topic: OSM)

66. J. Patwary#, G. Chen#, and S. Das*, “Efficient electrochemomechanical energy conversion in nanochannels grafted with polyelectrolyte layers with pH-dependent charge density.” Microfluidics and Nanofluidics  20, 37 (2016). (Topic: P)


Major topic wise summary of the number of papers: P (7); W2D (0); FN (0); LBL (0); TW (0); INT (0); 3DP (0); OSM (6)

65. S. Sinha# and S. Das*, “Under-water adhesion of rigid spheres on soft, charged surfaces.” Journal of Applied Physics, 118, 195306 (2015). (Topic: OSM)

64. G. Chen# and S. Das*, “Scaling laws and ionic current inversion in polyelectrolyte-grafted nanochannels.” Journal of Physical Chemistry B119, 12714-12726 (2015). (Topic: P)

63. J. Liu, R. Giakwad, A. Hande, S. Das, and T. Thundat, “Mapping and quantifying surface charges on clay nanoparticles.” Langmuir31, 10469-10476 (2015). (Topic: OSM)

62. S. Sinha#, K. A. Mahmoud, and S. Das*, “Conditions for spontaneous oil-water separation with oil-water separators.” RSC Advances5, 80184-80191 (2015). (Topic: OSM)

61. S. Das*, M. Banik, G. Chen#, S. Sinha#, and R. Mukherjee, “Polyelectrolyte brushes: Theory, modelling, synthesis, and applications.” Soft Matter, DOI: 10.1039/C5SM01962A (2015). (Topic: P)

60. M. Hassanpourfarda, Z. Nikakhtari, R. Ghosh, S. Das, T. Thundat, Y. Liu, and A. Kumar, “Bacterial floc mediated rapid streamer formation in creeping flows.” Scientific Reports 513070(1-12) (2015). (media coverage: (Topic: OSM)

59. S. Karpitschka, S. Das, M. van Gorcum, H. Perrin, B. Andreotti and J.H. Snoeijer, “Droplets move over viscoelastic substrates by surfing a ridge.” Nature Communications 4, 7891(1-6) (2015). (media coverage:;;;; (Topic: OSM)

58. J. Andrews# and S. Das*, “Effect of finite ion sizes in electric double layer mediated interaction force between two soft charged plates.” RSC Advances, 5, 46873-46880 (2015). (Topic: P)

57. G. Chen# and S. Das*, “Electroosmotic transport in polyelectrolyte-grafted nanochannels with pH-dependent charge density.” Journal of Applied Physics117, 185304 (2015). (Topic: P)

56. K. McDaniel#, F. Valcius#, J. Andrews#, and S. Das*, “Electrostatic potential distribution of a soft spherical particle with a charged core and pH dependent charge density”. Colloids and Surfaces B: Biointerfaces127, 143 (2015) (Selected as cover article for March issue of the journal). (media coverage:;) (Topic: P)

55. G. Chen# and S. Das*, “Streaming potential and electroviscous effects in soft nanochannels beyond Debye-Hückel linearization”, Journal of Colloid and Interface Science445, 357 (2015). (Topic: P)

54. R. Gaikwad, A. Hande, S. Das, S. K. Mitra, and T. Thundat, “Determination of charge on asphaltene nano-aggregates in air using electrostatic force microscopy”. Langmuir31, 679 (2015). (Topic: OSM)

53. G. Chen# and S. Das*, “Electrostatics of soft charged interfaces with pH-dependent charge density: Effect of consideration of appropriate hydrogen ion concentration distribution”. RSC Advances5, 4493 (2015). (Topic: P)


52. S. Das and A. Kumar, “Formation and post-formation dynamics of bacterial biofilm streamers as highly viscous liquid jets”. ScientificReports4, 7126 (2014). (media coverage:

51. S. Das*, S. Chanda#, J. C. T. Eijkel, N. R. Tas, S. Chakraborty, and S. K. Mitra, “Filling of charged cylindrical capillaries”. Physical Review E, 90, 043011 (2014).

50. S. Das*, “Explicit interrelationship between Donnan and surface potentials and explicit quantification of capacitance of charged soft interfaces with pH-dependent charge density”, Colloids and Surfaces A: Physicochemical and Engineering Aspects462, 69 (2014).

49. S. Chanda#, S. Sinha, and S. Das*, “Streaming potential and electroviscous effects in soft nanochannels: Towards designing more efficient nanofluidic electrochemomechanical energy converter”, Soft Matter, 10, 7558 (2014).

48. L. A. Lubbers, J. H. Weijs, L. Botto, S. Das, B. Andreotti, and J. H. Snoeijer, “Drops on soft solids: Free energy and double transition of contact angles Journal of Fluid Mechanics 747, R1 (2014).

Publications Before Joining University of Maryland, College Park

47. S. Das, T. Thundat, and S. K. Mitra, “Modeling of asphaltene transport and separation in presence of finite aggregation effects in combined electroosmotic-electrophoretic microchannel transport”, Colloids and Surfaces A: Physicochemical and Engineering Aspects 446, 23 (2014).

46. S. Chanda# and S. Das*, “Effect of finite ion sizes in an electrostatic potential distribution for a charged soft surface in contact with an electrolyte solution”, Physical Review E 89, 012307 (2014).

45. M. Mehranfar, R. Gaikwad, S. Das, S. K. Mitra, and T. Thundat, “Effect of temperature on morphologies of evaporation-triggered Asphaltene nanoaggregates” Langmuir 30, 800 (2014).


44. S. Das, A. Guha, and S. K. Mitra, “Exploring new scaling regimes for streaming potential and electroviscous effects in a nanocapillary with overlapping Electric Double Layers”, Analytica Chimica Acta 808, 159 (2013).

43. S. Das* and S. K. Mitra, “Electric double-layer interactions in a wedge geometry: Change in contact angle for drops and bubbles”, Physical Review E 88, 033021 (2013).

42.  S. Das and S. K. Mitra, “Different regimes in vertical capillary filling”, Physical Review E 87, 063005 (2013).

41. P. R. Waghmare, S. Das, and S. K. Mitra, “Drop deposition on under-liquid low energy surfaces”, Soft Matter 9, 7437 (2013). (Selected as a Cover Article). (media coverage:;;;)

40. P. R. Waghmare, S. Das, and S. K. Mitra, “Under-water superoleophobic glass: Unexplored role of surfactant-rich solvent”, Scientific Reports 3, 1862 (2013). (media coverage:

 39. S. Das, S. Chakraborty, and S. K. Mitra, “Contribution of interfacial electrostriction in surface tension”, Journal of Colloid and Interface Science 400, 130 (2013).

38. R. P. Misra, S. Das, and S. K. Mitra, “Electric Double Layer force between charged surfaces: Effect of solvent polarization”, The Journal of Chemical Physics 138, 114703 (2013).

37. S. Das, T. Thundat, and S. K. Mitra, “Analytical model for zeta potential of asphalting”, Fuel 108, 543 (2013).


36. S. Das, P. R. Waghmare, S. K. Mitra, “Early regimes of capillary filling”, Physical Review E 86, 067301 (2012).

35. S. Das, S. K. Mitra, and S. Chakraborty, “Ring stains in the presence of electromagnetohydrodynamic interactions”, Physical Review E 86, 056317 (2012).

34. A. Marchand, S. Das, J. H. Snoeijer, and B. Andreotti, “Contact Angles on a Soft Solid: From Young’s Law to Neumann’s Law”, Physical Review Letters 108, 094301 (2012).

33. S. Das, R. P. Misra, T. Thundat, S. Chakraborty, and S. K. Mitra,”Modeling of asphaltene transport and separation in presence of finite aggregation effects in pressure-driven microchannel flow”, Energy and Fuels 26, 5851 (2012).

32. S. Das, S. K. Mitra, and S. Chakraborty, “Wenzel and Cassie-Baxter states of an electrolytic drop on charged surfaces”, Physical Review E 86, 011603 (2012).

31. S. Das, P. R. Waghmare, M. Fan, N. S. K. Gunda, S. S. Roy, and S. K. Mitra, “Dynamics of liquid droplets in an evaporating drop: Liquid droplet “Coffee Stain” effect”, RSC Advances 2, 8390 (2012).

30. S. Das, S. Chakraborty, and S. K. Mitra, “Magnetohydrodynamics in narrow fluidic channels in presence of spatially non-uniform magnetic fields: Framework for combined magnetohydrodynamic and magnetophoretic particle transport”, Microfluidics and Nanofluidics13, 799 (2012).

29. S. Das, S. Chakraborty, and S. K. Mitra, “Redefining electrical double layer thickness in narrow confinements: Effect of solvent polarization”, Physical Review E 85, 051508 (2012).

28. S. Das, S. Chakraborty, and S. K. Mitra, “Ring stains in the presence of electrokinetic interactions”, Physical Review E85, 046311 (2012).

27. S. Das*, P. Dubsky, A. van den Berg, J. C. T. Eijkel, “Concentration polarization in translocation of DNA through nanopores and nanochannels”, Physical Review Letters 108, 138101 (2012).

26. A. Marchand, S. Das, J. H. Snoeijer, and B. Andreotti, “Capillary pressure and contact line force on a soft solid”, Physical Review Letters 108, 094301 (2012).

25. S. Das*, “Electric-double-layer potential distribution in multiple layer immiscible electrolytes: Effect of finite ion sizes”, Physical Review E 85, 012502 (2012).


24. B. Andreotii, A. Marchand, S. Das, and J. H. Snoeijer, “Elastocapillary instability under partial wetting conditions: Bending versus buckling”, Physical Review E 84, 061601 (2011).

23. S. Das*, “Effect of added salt on preformed surface nanobubbles: A scaling estimate”, Physical Review E 84, 036303 (2011).

22. S. Das* and S. Hardt, “Electric-Double-Layer potential distribution in multiple-layer immiscible electrolytes”, Physical Review E 84, 022502 (2011).

21. S. Das, A. Marchand, B. Andreotti and J. H. Snoeijer, “Elastic deformation due to tangential capillary forces”, Physics of Fluids 23, 072005 (2011).

20. S. Das and S. Chakraborty, “Steric-effect-induced enhancement of electrical-double-layer overlapping phenomena”, Physical Review E 84, 012501 (2011).

19. S. Das*, “Effect of impurities in the description of surface nanobubbles: Role of non-idealities in the surface layer”, Physical Review E 83, 066315 (2011).

18. S. Das and S. Chakraborty, “Probing the solvation decay length for characterizing hydrophobicity-induced bead-bead attractive interactions in polymer chains”, Journal of Molecular Modeling 17, 1911 (2011).


17. S. Das*, J. H. Snoeijer, and D. Lohse, “Effect of impurities in description of surface nanobubbles”, Physical Review E 82, 056310 (2010). (This paper has been selected for the November 15, 2010 issue of Virtual Journal of Nanoscale Science and Technology in the section “Surface and Interface Properties”)

16. S. Das and S. Chakraborty, “Effect of confinement on the collapsing mechanism of a flexible polymer chain”, The Journal of Chemical Physics 133, 174904 (2010). (This paper has been selected for the Novemeber 15, 2010 issue of Virtual Journal of Biological Physics Research in the section “Fundamental Polymer Statics/Dynamics”).

15. S. Das and S. Chakraborty, “Effect of conductivity variations within the Electric Double Layer on the streaming potential estimation in narrow fluidic confinements”, Langmuir 26, 11589 (2010).

14. S. Das and S. Chakraborty, “Transport of flexible molecules in narrow confinements”, International Journal of Micro-Nanoscale Transport Processes 1, 97 (2010) (Invited  Review).

13. S. Das and S. Chakraborty, “Augmented surface adsorption characteristics by employing patterned  microfluidic substrates in conjunction with transverse electric fields”, Microfluidics and Nanofluidics 8, 313 (2010).


12. S. Das and S. Chakraborty, “Influence of streaming potential on the transport and separation of charged spherical solutes in nanochannels subjected to particle-wall interactions”, Langmuir 25, 9863 (2009).

11. T. Das, S. Das and S. Chakraborty, “Influences of streaming potential on cross stream migration of flexible polymer molecules in nanochannel flows”, The Journal of Chemical Physics 130, 244904 (2009).


10. S. Das and S. Chakraborty, “Transport and separation of charged macromolecules under nonlinear electromigration in nanochannels”, Langmuir 24, 7704 (2008).

9. S. Chakraborty and S. Das, “Streaming field induced convective transport and its influence on the electroviscous effects in narrow fluidic confinements beyond the Debye Huckel limits”, Physical Review E 77, 037303 (2008).

8. R. Lambert, S. Das, M. Madou, S. Chakraborty and R. Rangel, “Simulation of a  moving mechanical actuator for fast biomolecular synthesis process”, International Journal of Heat and Mass Transfer 51, 4367 (2008).

7. S. Das and S. Chakraborty, “Separation of charged macromolecules in nanochannels within the continuum regime: Effects of wall interactions and hydrodynamic confinements”, Electrophoresis 29, 1115 (2008).


6. S. Das, K. Subramanian, and S. Chakraborty, “Analytical investigations on the effects of substrate kinetics on macromolecular transport and hybridization through microfluidic channels”, Colloids and Surfaces B58, 203 (2007).

5. S. Das and S. Chakraborty, “Transverse electrodes for improved DNA hybridization in microchannels”, AIChE Journal, 53, 1086 (2007).


4. S. Das and S. Chakraborty, “Augmentation of macromolecular adsorption rate through transverse electric fields generated across patterned walls of a microfluidic channel”, Journal of Applied Physics 99, 1 (2006). (This paper has been selected for the July 15, 2006 issue of Virtual Journal of Biological Physics Research in the section “Instrumentation Development).

3. S. Das and S. Chakraborty, “Analytical solutions for velocity, temperature and concentration distribution in electroosmotic microchannel flows of a non-Newtonian bio-fluid”, Analytica Chimica Acta 559, 15 (2006).

2. S. Das, T. Das, and S. Chakraborty, “Analytical solutions for the rate of DNA hybridization in a microchannel in the presence of pressure-driven and electro-osmotic flows”, Sensors and Actuators B114, 957 (2006).

1. S. Das, T. Das and S. Chakraborty, “Modeling of coupled momentum, heat and solute Transport during DNA hybridization in a microchannel in presence of electro-osmotic effects and axial pressure gradients”, Microfluidics and Nanofluidics 2, 37 (2006).

Journal Covers

PCCP Back Cover Article (April 2020)
Soft Matter Back Cover Article (January 2019)
Advanced Engineering Materials Back Cover Article (August 2018)
Soft Matter Back Cover Article (January 2017)
PCCP Front Cover Article (August, 2016)
Colloids and Surfaces B Cover Article (April, 2015)
Soft Matter Cover Article (August, 2013)

Book Chapters

  • S. Das, T. Das, and S. Chakraborty, “Micfrofluidics based DNA hybridization” in Microfluidics and Microscale Transport Processes Ed. Suman Chakraborty, Taylor and Francis (2012).
  • S. Das, J. Chakraborty, and S. Chakraborty, “Electrokinetics in narrow confinements”, in Microfluidics and Microscale Transport Processes Ed. Suman Chakraborty, Taylor and Francis (2012).
  • S. Das and Suman Chakraborty, “Polymer transport in nanochannels”, in Microfluidics and Nanofluidics Handbook: Fabrication, Implementation and Applications-Vol II. Eds. Sushanta K. Mitra and Suman Chakraborty, Taylor and Francis (2012).

Submitted Journal Papers

#Denotes Postdocs and Graduate/Undergraduate students and summer interns working/worked with Prof. Das in SMIEL

*Denotes the corresponding authorship

9. A. Dhamsania#, W. Mah#, A. Sivarajan#, J. Ting#, S. Chung#, E. Carlson#, A. Wang#, G. Lee#, B. Huynh#, A. Chen#, L. Mueller#, C. Kim#, and S. Das*, “Soft Magnetic Films: Fabrication, Properties, Printability, and Applications.”

8. B. Zhao#, V. S. Sivasankar#, A. Dasgupta, and S. Das*, “Ultra-thin and Ultra-sensitive Printed Carbon-Nanotube-based Temperature Sensors Capable of Repeated Uses on Surfaces of Widely Varying Curvatures and Wettabilities.”

7. C. Yi#, D. Park, R. Fedderwitz, C. Ding, Chao; G-Q. Lu, J. Fleischer, P. Li, P. Kofinas, S. Das*, and D. Hines*, “Fully Printed Resonance-Free Broadband Conical Inductors Using Engineered Magnetic Inks.”

6. B. Zhao#, V. S. Sivasankar#, S. Sinha, A. Dasgupta, and S. Das*, “Applications, Fluid Mechanics, and Colloidal Science of Carbon-Nanotube-based 3D Printable Inks.”

5. S. A. Etha#, P. R. Desai#, H. S. Sachar#, and S. Das*, “Wetting Dynamics on Solvophilic, Soft, Porous, and Active Surfaces: Towards Designing Soft and Active Liquid-Infused Surfaces.”

4. V. S. Sivasankar#, S. A. Etha#, H. S. Sachar#, and S. Das*, “Thermoosmotic Transport in Nanochannels Grafted with pH-responsive Polyelectrolyte Brushes Modelled Using Augmented Strong Stretching Theory.”

3. T. H. Pial#, H. S. Sachar#, P. R. Desai#, and S. Das*, “Overscreening, Coion-Dominated Electroosmosis, and Electric Field Strength Mediated Flow Reversal in Polyelectrolyte Brush Functionalized Nanochannels.”

2. H. Jing#, Y. Wang#, K. Ramamurthi, and S. Das*, “Lipid Flip-Flops in Curved Lipid Bilayer Nanosystems.”

1. G. Chen# and S. Das*, “Uncovering universality in the scaling laws of polymer brushes of different geometries.”

Students’ Thesis

PhD Thesis

  1. Yanbin Wang (Graduated: Fall, 2019; Thesis Title: WATER, ION, AND GRAPHENE: AN ODYSSEY THROUGH THE MOLECULAR SIMULATIONS; Abstract)

MS Thesis

  5. Joseph Eugene Andrews (Graduated: Fall, 2016; Thesis Title: WETTING OF GRAPHENE; Abstract)



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