@article{dai_pradeep_zhu_xie_barton_si_ding_yu_parsons_2021, title={Freestanding Metal Organic Framework-Based Multifunctional Membranes Fabricated via Pseudomorphic Replication toward Liquid- and Gas-Hazards Abatement}, volume={10}, ISSN={["2196-7350"]}, url={https://doi.org/10.1002/admi.202101178}, DOI={10.1002/admi.202101178}, abstractNote={Abstract}, journal={ADVANCED MATERIALS INTERFACES}, publisher={Wiley}, author={Dai, Zijian and Pradeep, Shravan and Zhu, Jie and Xie, Wenyi and Barton, Heather F. and Si, Yang and Ding, Bin and Yu, Jianyong and Parsons, Gregory N.}, year={2021}, month={Oct} }
 @article{pradeep_nabizadeh_jacob_jamali_hsiao_2021, title={Jamming Distance Dictates Colloidal Shear Thickening}, volume={127}, ISSN={["1079-7114"]}, url={https://doi.org/10.1103/PhysRevLett.127.158002}, DOI={10.1103/PhysRevLett.127.158002}, abstractNote={We report experimental and computational observations of dynamic contact networks for colloidal suspensions undergoing shear thickening. The dense suspensions are comprised of sterically stabilized poly(methyl methacrylate) colloids that are spherically symmetric and have varied surface roughness. Confocal rheometry and dissipative particle dynamics simulations show that the shear thickening strength β scales exponentially with the scaled deficit contact number and the scaled jamming distance. Rough colloids, which experience additional rotational constraints, require an average of 1.5-2 fewer particle contacts as compared to smooth colloids, in order to generate the same β. This is because the surface roughness enhances geometric friction in such a way that the rough colloids do not experience a large change in the free volume near the jamming point. The available free volume for colloids of different roughness is related to the deficiency from the maximum number of nearest neighbors at jamming under shear. Our results further suggest that the force per contact is different for particles with different morphologies.}, number={15}, journal={PHYSICAL REVIEW LETTERS}, author={Pradeep, Shravan and Nabizadeh, Mohammad and Jacob, Alan R. and Jamali, Safa and Hsiao, Lilian C.}, year={2021}, month={Oct} }
 @article{zhu_qiu_yao_wang_wu_pradeep_yu_dai_2021, title={Water-stable zirconium-based metal-organic frameworks armed polyvinyl alcohol nanofibrous membrane with enhanced antibacterial therapy for wound healing}, volume={603}, ISSN={["1095-7103"]}, DOI={10.1016/j.jcis.2021.06.084}, abstractNote={Inadequate water-stability and antibacterial activity limit the biomedical application of polyvinyl alcohol (PVA)-based membranes in moist environments. In this work, we propose a strategy to improve the water-stability of PVA membranes via metal complexation and heat treatment. We report a simple routine where the zirconium-based UiO-66-NH2 metal-organic frameworks (MOFs) are nucleated as a layer on the surface of PVA nanofibrous membranes (UiO-66-NH2@PVA NFMs). We find that the chemical modification of membranes increases their hydrophilicity and adds on mechanical support for the brittle UiO-66-NH2 MOFs. Additionally, we demonstrate the application of UiO-66-NH2 MOFs as drug carriers for antibacterial drug, levofloxacin (LV). The active drug component is preloaded during the one-step nucleation process. The obtained LV loaded UiO-66-NH2@PVA NFMs ([email protected]2@PVA) are shown to be bactericidal with the efficiency > 99.9% at 100 μg/mL against two bacterial species, Escherichia coli (E. coli) and Staphylococcus aureus (S. aureus). Compared with the commercially available gauzes, the UiO-66-NH2@PVA and [email protected]2@PVA treatments will significantly improve the wound healing process. Animal studies show that the [email protected]2@PVA will effectively offer a safe alternative solution for the patients to protect against bacterial infections, demonstrating the potential application of MOF-based NFMs as wound dressing agents.}, journal={JOURNAL OF COLLOID AND INTERFACE SCIENCE}, author={Zhu, Jie and Qiu, Weiwang and Yao, Chengjian and Wang, Chun and Wu, Dequn and Pradeep, Shravan and Yu, Jianyong and Dai, Zijian}, year={2021}, month={Dec}, pages={243–251} }
 @article{pradeep_hsiao_2020, title={Contact criterion for suspensions of smooth and rough colloids}, volume={16}, ISSN={["1744-6848"]}, url={https://doi.org/10.1039/D0SM00072H}, DOI={10.1039/d0sm00072h}, abstractNote={We report a procedure to obtain the search distance used to determine the particle-particle contact in dense suspensions of smooth and rough colloids.}, number={21}, journal={SOFT MATTER}, author={Pradeep, Shravan and Hsiao, Lilian C.}, year={2020}, month={Jun}, pages={4980–4989} }
 @misc{hsiao_pradeep_2019, title={Experimental synthesis and characterization of rough particles for colloidal and granular rheology}, volume={43}, ISSN={["1879-0399"]}, DOI={10.1016/j.cocis.2019.04.003}, abstractNote={We review the experimental synthesis of smooth and rough particles, characterization of surface roughness, quantification of the pairwise and bulk friction coefficients, and their effect on the rheology of wet particulate flows. Even in the absence of interparticle attraction or cohesion, such types of flows are broadly ubiquitous, spanning enormous length scales ranging from consumer and food products to earth movements. The increasing availability of model frictional particles is useful to advancing new understanding of particulate rheology. Although hard-sphere particles remain the most widely studied system due to their simplicity, their rigid and frictionless nature cannot predict many of the complex flow phenomena in colloidal and granular suspensions. Besides a myriad of interparticle forces, the presence of tangential interparticle friction arising from either hydrodynamics or solid contacts of asperities is now thought to be responsible for commonalities in shear thickening and jamming phenomena at high volume fractions and shear stresses. The overall richness of the suspension mechanics landscape points to the reunification of colloidal and granular physics in the near future: one in which it may become possible to apply a universal set of physical frameworks to understand the flows of model rough particles across multiple spatiotemporal scales. This can only be accomplished by properly distinguishing between microscopic and bulk friction and by decoupling hydrodynamics and contact contributions within the context of experimental observations.}, journal={CURRENT OPINION IN COLLOID & INTERFACE SCIENCE}, author={Hsiao, Lilian C. and Pradeep, Shravan}, year={2019}, month={Oct}, pages={94–112} }