Article
Nanoscience & Nanotechnology
Jinglun Yang, Xiangquan Liu, Jiaqi Tang, Andra Dedinaite, Jianfei Liu, Rong Miao, Kaiqiang Liu, Junxia Peng, Per Martin Claesson, Xiaoyan Liu, Yu Fang
Summary: The study presents a scalable strategy for manufacturing defect-free nanofilms with a large area, showcasing high water flux and antifouling properties. These nanofilms exhibit promising applications in wastewater treatment and pharmaceutical concentration due to their outstanding mechanical properties and unique group-selective separation capability.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Multidisciplinary
Caijiao Yu, Xixi Cen, Zhengqing Zhang, Yuxiu Sun, Wenjuan Xue, Zhihua Qiao, Michael D. Guiver, Chongli Zhong
Summary: In this study, a new strategy of step-nucleation in situ self-repair was proposed to prepare large-area ultrathin and rollable MOF membranes on a flexible polymer membrane support. This strategy enables the practical implementation of large-area MOF membranes and has potential applications in gas separation.
ADVANCED MATERIALS
(2023)
Review
Polymer Science
Zhuyuan Wang, Songmiao Liang, Yuan Kang, Wang Zhao, Yun Xia, Jindi Yang, Huanting Wang, Xiwang Zhang
Summary: This article discusses the importance of composite separation membranes in various fields and the dominance of liquid to liquid interfacial polymerization in synthesizing high quality polymeric nanofilms, while also addressing the challenges associated with this technique.
PROGRESS IN POLYMER SCIENCE
(2021)
Editorial Material
Chemistry, Multidisciplinary
Linji Li, Yongli Shi, Kai Zhang
Summary: Livingston and his colleagues recently published two articles in Nature and Science, introducing the preparation of ultrathin nanofilms through interfacial polymerization to address challenges in accurate molecular sieving and crude oil separation in membrane separation field. One article focuses on the ordered sub-nanopores in nanofilms achieving accurate molecular sieving at angstrom precision, while the other article highlights the significant improvement in the permeability of hydrophobic polyamide nanofilms to hydrophobic liquid by an order of magnitude. These innovative designs and impressive performances offer a promising strategy for membrane separation development and show great potential in industrial applications such as drug separation and crude oil fractionation.
CHEMICAL RESEARCH IN CHINESE UNIVERSITIES
(2023)
Article
Chemistry, Multidisciplinary
Rui Wang, Yisa Zhou, Ya Zhang, Jian Xue, Jurgen Caro, Haihui Wang
Summary: This study presents a simple and efficient strategy for fabricating ionic COF membranes using electrophoretic deposition, resulting in ultrathin membranes with outstanding performance.
ADVANCED MATERIALS
(2022)
Article
Engineering, Chemical
Yumin Sun, Hailiang Liu, Yang Qin, Xianshe Feng, Junyan Chen, Qinglin Huang, Changfa Xiao
Summary: In this study, a novel approach to preparing ultrathin polyamide nanofilms was proposed. By incorporating graphene quantum dots and piperazine into the reaction solution, the physicochemical structures of the nanofilms were tailored by adjusting the electrospray time and graphene quantum dots concentrations. The addition of graphene quantum dots significantly improved the separation performance of the resulting membrane.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Nanoscience & Nanotechnology
Hukang Guo, Fupeng Li, Xuerong Shui, Jianyu Wang, Chuanjie Fang, Liping Zhu
Summary: Organic solvent nanofiltration (OSN) technology has great potential in achieving low-carbon separation applications, with reduced energy consumption by almost 90%. Ultrathin polyamide nanofilms with controlled microporosity and morphology were synthesized via a molecular layer deposition method, and displayed highly superior separation performance compared to current counterparts.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Multidisciplinary
Zhiyu Liu, Zhong Ma, Baitai Qian, Anson Y. H. Chan, Xiaowen Wang, Yang Liu, John H. Xin
Summary: The scalable ultrathin uniform GO membrane fabrication technique reported in this study utilizes Mayer rod-coating and short-time, high-power UV reduction to produce large area, thin GO membranes. The interlayer spacing of the membrane can be effectively reduced and regulated to improve salt rejection rate, while the fabricated membrane shows superior water permeability and high separation efficiency, along with excellent mechanical stability under harsh conditions. The developed fabrication method can be scaled up using a roll-to-roll industrial production process, solving the current bottleneck in GO membrane research and enabling industrial usage of GO membrane.
Article
Nanoscience & Nanotechnology
Maryam Mirzaei, Javad Karimi-Sabet, Sepehr Nikkho, Jafar Towfighi-Darian
Summary: A novel transfer technique for the fabrication of graphene membrane on a porous polymer substrate was developed in this study, resulting in crack-free large-area graphene film. The graphene membrane exhibited high gas molecular sieving performance, especially in helium and hydrogen gas separation.
ACS APPLIED NANO MATERIALS
(2022)
Article
Nanoscience & Nanotechnology
Ruyu Li, Jiayun Xu, Tingting Wang, Liang Wang, Fei Li, Shengda Liu, Xiaojia Jiang, Quan Luo, Junqiu Liu
Summary: The ultrathin protein membrane developed in this study demonstrates ultrahigh permeation flux and selective sieving capability for various molecules. The rejection precision can be reversibly regulated by the folding/unfolding transition of proteins, allowing for effective pore size control even under pressure-driven conditions. This dynamically tunable membrane combines the advantages of high permeance, selectivity, controllability, recyclability, and mechanical stability for advanced applications in extended fields.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Materials Science, Ceramics
Guoliang Zhang, Xu Zhang, Zehai Xu, Qin Meng, Xu Zhang
Summary: Ultrathin planar alumina-based ceramic membranes with asymmetric structure and thickness less than 0.85 mm were successfully prepared by one-step molding phase transformation/sintering method using low-cost black talc nanosheets. The addition of black talc nanosheets effectively enhanced the interfacial bonding area and strength between the grains, resulting in increased flexural strength. The asymmetric structure of the membranes, combined with a polymer substrate, reduced the thickness of the effective separation layer and minimized flux loss caused by densification.
CERAMICS INTERNATIONAL
(2023)
Article
Chemistry, Physical
Ming Han, Yuwei Liu, Hong-Guo Liu
Summary: The method of preparing large area layered ultrathin films at the liquid/liquid interface has been successfully applied to perfluorodecanedioic acid, leading to the formation of ultrathin films with ordered crystal structure. In contrast, other similar molecules formed ultrathin nanosheets, indicating different self-assembly behaviors.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2021)
Article
Engineering, Chemical
Jiang Fan, Wufeng Wu, Zong Lu, Yanying Wei
Summary: Metal-Organic Framework (MOF) materials are widely studied for their regular pores and good designability, making them ideal molecular sieving membrane materials. In this work, ultrathin 210 nm-UiO-66 polycrystalline membranes were quickly synthesized using sonication and microwave-assisted growth. The as-synthesized membranes showed good quality and excellent stability, with a Na+ rejection of 99.6% in a long-term experiment.
JOURNAL OF MEMBRANE SCIENCE
(2022)
Article
Engineering, Chemical
Yali Zhao, Xiayi Yang, Jiayu Luo, Yanying Wei, Haihui Wang
Summary: This study uses the fast current-driven synthesis (FCDS) method to grow ZIF-8 membranes on ceramic tubes, achieving high selectivity and stability. This breakthrough opens up new possibilities for the industrialization of MOF membranes in gas separation fields.
Article
Chemistry, Multidisciplinary
Hongye Yuan, Kerui Li, Dongchen Shi, Hao Yang, Xin Yu, Weidong Fan, Pio John S. Buenconsejo, Dan Zhao
Summary: This study reports the facile fabrication of ultrathin (down to 20 nm) NUS-8 membranes in large-area (>200 cm(2)) with great homogeneity and texture along (00l) direction. The NUS-8 membranes show excellent rejections (>98%) towards various metal ions and dyes in aqueous separation due to the well-aligned structures. The study opens up novel perspectives for preparing ultrathin and large-area MOF membranes using the solution processability of MOFs.
ADVANCED MATERIALS
(2023)
Article
Biochemical Research Methods
Rajeshwari Tiwari, Saswati Banerjee, Deepak Tyde, Krishna Das Saha, Anitha Ethiarajan, Niladri Mukherjee, Samit Chattopadhy, Sumit Kumar Pramanik, Amitava Das
Summary: Leishmaniasis is a vector-borne disease caused by an intracellular parasite, for which vaccines are still under development and the efficacy of available drugs is being questioned. A stimuli-responsive nanocarrier has been reported for the specific release of drugs in lysosomes, aiming to reduce drug toxicity and increase drug efficacy. This novel drug formulation could potentially offer a new line of treatment for leishmaniasis.
BIOCONJUGATE CHEMISTRY
(2021)
Review
Chemistry, Multidisciplinary
Noufal Kandoth, Subhadip Barman, Atin Chatterjee, Sandip Sarkar, Anik Kumar Dey, Sumit Kumar Pramanik, Amitava Das
Summary: This review focuses on the development of upconverting nanoparticles based on core-shell lanthanide-doped nanoclusters for photoactive nanosystems against microbial infection and its therapeutic application. Utilizing NIR photoirradiation generated by lanthanum doped UCNPs, antimicrobial photodynamic therapy and multimodal therapy are achieved. The study highlights the efficacy of UCNPs against antibiotic-resistant bacterial colonies, drug-resistant fungi, and viruses, along with presenting their biosafety and biocompatibility at both in vitro and in vivo levels.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Article
Mechanics
Vamsi Krishna Reddy Anyam, K. Anki Reddy
Summary: In this study, we used the discrete element method to investigate the flow dynamics of a mixture of dumbbells and disks flowing through an orifice in a two-dimensional silo. The simultaneous contact of two constituent parts of a dumbbell with a disk or another part of a dumbbell hinders their relative motion. An increase in the fraction of dumbbells leads to a larger number of contacts with this hindering mechanism, resulting in increased dynamic friction and decreased flow rate. We proposed a modified Beverloo's law scaling to relate the flow rate with the fraction of dumbbells and the orifice width. Additionally, we found the presence of stagnant zones that obstruct the free flow of particles adjacent to them.
Article
Nanoscience & Nanotechnology
Kumari Raksha, Noufal Kandoth, Shresth Gupta, Subhadeep Gupta, Sumit Kumar Pramanik, Amitava Das
Summary: Recently, the low-dimensional organic-inorganic halide perovskites (OIHP) have gained significant attention due to their favorable exciton dynamics, broad-band emission, and tunable band-edge excited-state energy for optoelectronic applications. Doping divalent transition metals like Mn2+ into OIHP introduces a low-energy luminescence emission and generates cytotoxic singlet oxygen species. A unique purpose-built nanoassembly is designed to enable energy transfer processes between different components, presenting a new direction for biomedical applications in the field of perovskite.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Inorganic & Nuclear
Sheik Saleem Pasha, Amrita Banerjee, Sreejesh Sreedharan, Soumendra Singh, Noufal Kandoth, Katherine A. Vallis, Samir Kumar Pal, Sumit Kumar Pramanik, Amitava Das
Summary: A new Ir(III)-based phosphorescent molecule (AS1) is synthesized for the selective detection of inorganic arsenic in drinking water. The molecule shows a ratiometric luminescence response and can detect low levels of arsenic even in the presence of other ions. The molecule can localize in the mitochondria of cells and induce detoxification of arsenic.
INORGANIC CHEMISTRY
(2022)
Article
Chemistry, Multidisciplinary
Shivam Tiwari, Vasista Adupa, Dhanesh Sing Das, K. Anki Reddy, Tadikonda Venkata Bharat
Summary: This study provides atomistic insights into the interaction between the spike protein (S) of SARS-CoV-2 and a Montmorillonite (MMT) nano clay surface. The findings highlight the role of electrostatic and hydrophobic interactions in governing this interaction. The study also identifies specific residues and glycans involved in cell entry and immune evasion, which could have implications for future therapeutic techniques.
Article
Chemistry, Multidisciplinary
Shabnam Pathan, Sk Safikul Islam, Ria Sen Gupta, Barnali Maity, P. Rajasekhar Reddy, Samir Mandal, K. Anki Reddy, Suryasarathi Bose
Summary: This study reports mechanically robust, chlorine-tolerant, self-assembled nanostructured graphene oxide (GO) membranes for precise molecular sieving. The modification of GO nanosheets allows for the alignment and stabilization of the GO LLC structure in a polar aprotic solvent. The modified GO membranes exhibit considerably improved salt rejection and water flux compared to shear-aligned GO membranes.
Article
Chemistry, Physical
Gunolla Nagendraprasad, Vasista Adupa, K. Anki Reddy, Chandan Das, Santanu Karan
Summary: The advancement of forward osmosis technology in commercial and industrial applications has been hindered by the lack of suitable membranes and ideal draw solutes. In this study, a semiaromatic polyamide membrane was investigated using molecular dynamics simulations to understand its structural properties and performance in the forward osmosis process. The results showed that the semiaromatic polyamide membrane exhibited excellent water permeability and no reverse draw solute flux.
JOURNAL OF PHYSICAL CHEMISTRY B
(2023)
Article
Chemistry, Physical
Pulak Sarkar, Tapashi Sarkar, Harwinder Singh, Bhaumik Sutariya, Santanu Ray, Amitava Das, Sumit Kumar Pramanik, Santanu Karan
Summary: This study reports the fabrication of carbo-cationic microporous poly(triaminoguanidinium-amide) nanofilm composite membranes with ultra-low molecular weight cut-off (MWCO). The membranes exhibit high water permeance, tunable salt rejection, and high ion selectivity. These ultra-low MWCO membranes have various potential applications in antibiotic removal, desalination, wastewater treatment, and industrial separation problems concerning small neutral solutes.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Review
Chemistry, Multidisciplinary
Sumit Kumar Pramanik, Sreejesh Sreedharan, Rajeshwari Tiwari, Sourav Dutta, Noufal Kandoth, Surajit Barman, Stephen O. Aderinto, Samit Chattopadhyay, Amitava Das, Jim A. Thomas
Summary: This review provides an overview of the approaches and techniques used in super-resolution microscopy, and focuses on the advantages of using nanoparticle-based probes in these applications. Different classes of nanoparticles developed for these purposes are critically described, and illustrated with various examples from recent literature.
CHEMICAL SOCIETY REVIEWS
(2022)
Article
Chemistry, Multidisciplinary
Ananta Dey, Manisha Yadav, Deepak Kumar, Anik Kumar Dey, Sweety Samal, Subhash Tanwar, Debrupa Sarkar, Sumit Kumar Pramanik, Susmita Chaudhuri, Amitava Das
Summary: Bacteria organized in biofilms show significant tolerance to conventional antibiotics. This study explores a combination therapy strategy using a self-assembled guanidinium-Ag(0) nanoparticle hybrid gel composite to address issues associated with treating biofilm-forming and multidrug-resistant bacteria.
