Review
Nanoscience & Nanotechnology
Sahil Malhotra, Shweta Dumoga, Neetu Singh
Summary: Cellular membrane-derived nanoparticles, particularly from red blood cells (RBCs), have shown great potential in drug delivery systems. These nanoparticles possess stable lipid bilayer structures and can be loaded with different drug molecules. They also have the unique ability to fuse with other cell membranes, forming hybrid nanovesicles. However, industrial-scale production remains challenging.
WILEY INTERDISCIPLINARY REVIEWS-NANOMEDICINE AND NANOBIOTECHNOLOGY
(2022)
Article
Polymer Science
Xiaoyan Zhou, Chenchen Gao, Yaning Gao, Yirong Fan, Hui Sun
Summary: This study presents a new method for the facile preparation of polymeric toroids by utilizing anisotropic bowl-shaped nanoparticles. The fusion-induced particle assembly (FIPA) strategy involves the self-assembly of a specific polymer in ethanol to prepare the bowl-shaped nanoparticles. By adjusting the temperature of ethanol, these nanoparticles gradually aggregate and fuse to form toroidal structures.
Article
Multidisciplinary Sciences
Vinu Krishnan, Kevin Peng, Apoorva Sarode, Supriya Prakash, Zongmin Zhao, Sergey K. Filippov, Kristina Todorova, Brittney R. Sell, Omar Lujano, Shirin Bakre, Anusha Pusuluri, Douglas Vogus, Kenneth Y. Tsai, Anna Mandinova, Samir Mitragotri
Summary: DOCTOR is a novel topical treatment for skin cancer that demonstrates high cancer-cell killing specificity and superior safety to healthy skin cells compared to conventional treatments. In vivo and ex vivo studies confirm its efficacy in treating cancerous lesions without irritation or systemic absorption, making it a safe and potent option for clinical use.
Article
Food Science & Technology
Filipa A. Soares, Beatriz Salinas, Salette Reis, Claudia Nunes
Summary: This review provides an up-to-date collection of milk-derived delivery systems (MDDS) and critically examines the health, environmental, and regulatory issues associated with milk production and consumption. Milk has been shown to be a safe and low-cost source of materials with potential for use in nutrition and medicine. However, challenges such as biocompatibility testing, environmental burdens, and lack of standardized production methods need to be addressed before the full potential of milk can be realized.
TRENDS IN FOOD SCIENCE & TECHNOLOGY
(2023)
Article
Agronomy
Li-shang Dai, Hui-fei Tian, Yang Hang, Chao-wei Wen, Ying-hao Huang, Bin-feng Wang, Jing-wei Hu, Jia-ping Xu, Ming-jie Deng
Summary: Overall, the study found that CPT has high toxicity against Spodoptera litura larvae, causing growth stagnation and high mortality. Various energy-related metabolites were significantly affected by 0.5% CPT, while MAT showed low toxicity and minimal impact on hemolymph metabolites. Enzymatic and gene expression tests further supported the stronger toxicological effect of CPT compared to MAT against S. litura.
PEST MANAGEMENT SCIENCE
(2021)
Article
Chemistry, Multidisciplinary
Clement Debrie, Noemie Coudert, Jean-Michel Guigner, Taco Nicolai, Francois Stoffelbach, Olivier Colombani, Jutta Rieger
Summary: Polymerization-induced self-assembly (PISA) is a powerful method to produce polymeric nano-objects in (aqueous) solution. The mechanisms involved in morphological transitions during PISA are still not well understood. Through a systematic study, it is found that unimer exchange is not necessary for the formation of higher order morphologies in PISA, and the monomer present in the polymerization medium is responsible for the morphological transitions.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Food Science & Technology
Yu-Long Sun, Bing-Qiang Ge, Mi-Zhuan Li, Lei Wang, Zhong-Xiu Chen
Summary: In this study, the effects of crowding degree on the autocatalytic production of fatty acid with different chain lengths were investigated using polyethylene glycol (PEG). The results showed that higher crowding degree led to slower production rate of decanoic acid but faster rate of oleic acid due to changes in vesicle sizes. Decanoic acid vesicles exhibited viscous behavior, while oleic acid vesicles displayed elastic behavior. This research provides valuable insights into the unusual autocatalyzed production of fatty acid in macromolecular crowding and its relevance to lipid digestion.
NPJ SCIENCE OF FOOD
(2023)
Article
Biochemistry & Molecular Biology
Silvia C. Rodrigues, Renato M. S. Cardoso, Claudia F. Gomes, Filipe Duarte, Patricia C. Freire, Ricardo Neves, Joana Simoes-Correia
Summary: The development and adoption of cell therapies have been hindered by safety concerns, leading to an increased interest in extracellular vesicles (EV) as a safer and potentially more effective alternative. However, further research is needed to fully understand the toxicity profile of EV.
Article
Chemistry, Multidisciplinary
Akane Shimizu, Emi Hifumi, Ken Kojio, Atsushi Takahara, Yuji Higaki
Summary: Transformable double hydrophilic block copolymer assemblies are valid as a biocompatible smart macromolecular system. The research found that different types of zwitterions can modulate the spontaneous assembly of this polymer, and the modulation efficiency is related to the intercharge hydrocarbon spacer length.
Review
Biochemistry & Molecular Biology
Zhong Ri Lim, Svetlan Vassilev, Yew Wai Leong, Jing Wen Hang, Laurent Renia, Benoit Malleret, Steve Kah-Weng Oh
Summary: The review focuses on breakthroughs in high-density cultures of hiPSC-derived RBCs, major challenges and prospective solutions in erythropoiesis, as well as recent advances and techniques for cost-effective, high-density cultures of GMP-compliant RBCs and their novel applications post purification.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2021)
Article
Chemistry, Physical
Jinyu Gao, Jiahui Ma, Cheng Deng, Hai Yang, Simin Liu, Zhiyong Zhao
Summary: Amphiphilic alkyl-perylenebisdiimide-DNA hybrids can self-assemble into various forms of micelles through host-guest interaction, and these structures can anchor functional molecules through DNA hybridization.
Article
Polymer Science
Lei Ma, Weixing Xiong, Kaiwen Yu, Xiyu Wang, Ying Cao, Xinhua Lu, Yuanli Cai
Summary: The study presents a strategy for achieving multiphase liquid condensates with individual charged/neutral subdomains by introducing macromolecular crowding. Through specific copolymerization conditions, self-sorting and macromolecular crowding can be induced, leading to the formation of nanostructured multiphase condensates of biological importance.
Article
Engineering, Chemical
Anish P. Patel, Christopher R. Schorr, Dhushyanth Viswanath, Kaustabh Sarkar, Natalie J. Streb, Vincenzo J. Pizzuti, Rahul Misra, Jaewon Lee, You-Yeon Won
Summary: Calcium tungstate nanoparticles can be encapsulated within polymer micelles for cancer treatment. Using a less toxic cosolvent, lower polymer to NP ratio, improved mixing methods, and sucrose as a lyophilization excipient can reduce agglomeration during storage and freeze-drying. Smaller molecular weight PEG-PLA is less prone to agglomeration during freeze-drying compared to higher molecular weight PEG-PLA.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2021)
Article
Chemistry, Multidisciplinary
Ben Woods, Katherine C. Thompson, Nicolas Szita, Shu Chen, Lilia Milanesi, Salvador Tomas
Summary: In living organisms, most chemical reactions occur within lipid-membrane bound compartments, and confinement within a lipid membrane is believed to be crucial for the origin of life. Previous research has shown that confinement in the aqueous cavity of a lipid vesicle provides protection against hydrolysis, a phenomenon known as the confinement effect (C-e), which is attributed to the interaction with the lipid membrane. In this study, we demonstrate that both the size and shape of the vesicle cavity modulate the C-e, and propose a mathematical model that relates the C-e to the vesicle radius and lipid packing parameter.
Article
Chemistry, Physical
Hao Chen, Tingting Yan, Jinpeng Zhang, Xiaomei Pei, Zhenggang Cui, Binglei Song
Summary: A rosin-based amine oxide surfactant was synthesized, forming flexible nanobelts with a thickness of 2-3 nm and exhibiting stability and high viscoelasticity.
Article
Biochemistry & Molecular Biology
Dipul Chawla, Tejinder Kaur, Akshay Joshi, Neetu Singh
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2020)
Article
Engineering, Environmental
Akshat Joshi, Zhe Xu, Yasuhiro Ikegami, Kozue Yoshida, Yusuke Sakai, Akshay Joshi, Tejinder Kaur, Yosuke Nakao, Yo-ichi Yamashita, Hideo Baba, Shinichi Aishima, Neetu Singh, Hiroyuki Ijima
Summary: This study utilized heparin-functionalized nanofabrication technology to successfully sequester exogenous and endogenous growth factors, promoting tissue regeneration. Heparin-functionalized nanofibers showed superior therapeutic capability compared to non-functionalized nanofibers, demonstrating endogenously driven tissue regeneration.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Materials Science, Biomaterials
Shaifali Dhingra, Akshay Joshi, Neetu Singh, Sampa Saha
Summary: This study developed a strategy for an antibacterial coating on a biodegradable substrate, addressing the low cyto-compatibility issue of such coatings. By attaching antibacterial polymer brushes onto hydroxyl functionalized polyester substrate, various aspects such as reaction kinetics, surface density, and antibacterial activity were thoroughly investigated. The study found a balance between antibacterial activity and cyto-compatibility after 18 hours of Surface Initiated Atom Transfer Radical Polymerization (SIATRP), offering potential for stable, non-leaching anti-infective coatings on biodegradable polymer surfaces.
MATERIALS SCIENCE AND ENGINEERING C-MATERIALS FOR BIOLOGICAL APPLICATIONS
(2021)
Article
Chemistry, Multidisciplinary
Akshay Joshi, Tejinder Kaur, Neetu Singh
Summary: Spatial distribution and interactions of cells play a fundamental role in determining cell fate decisions.
Article
Materials Science, Biomaterials
Shreemoyee De, Akshay Joshi, Dinesh M. Tripathi, Savneet Kaur, Neetu Singh
Summary: This study presents a micron scale alginate based 3D platform embedded with a carbon dot pH sensor for continuous growth monitoring of encapsulated cells in real time. The platform closely mimics a tumor microenvironment and enables real time monitoring of pH change, making it ideal for studying cancer cell growth.
MATERIALS SCIENCE & ENGINEERING C-MATERIALS FOR BIOLOGICAL APPLICATIONS
(2021)
Article
Nanoscience & Nanotechnology
Akshay Joshi, Tejinder Kaur, Akshat Joshi, Sriram Bharath Gugulothu, Saswat Choudhury, Neetu Singh
Summary: Medical dressings play a crucial role in tissue engineering by speeding up wound healing. However, most current synthesis methods result in dressings of uniform size or involve complex fabrication techniques, which limits their commercial use. This study introduces a new type of dressing that breaks free from uniform films to micro-patterned films, filling the depth of wounds more efficiently and providing better adhesion and biocompatibility for promoting wound healing and tissue regeneration. This innovative dressing has the potential to overcome the limitations of traditional wound treatments and become an ideal choice for wound healing.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Optics
Sunil Bhatt, Ankit Butola, Anand Kumar, Pramila Thapa, Akshay Joshi, Suyog Jadhav, Neetu Singh, Dilip K. Prasad, Krishna Agarwal, Dalip Singh Mehta
Summary: Multispectral quantitative phase imaging (MS-QPI) is achieved by using a highly spatially sensitive digital holographic microscope assisted by a deep neural network to extract spectral dependent quantitative information in single-shot. Three different wavelengths (532, 633, and 808 nm) are used, and interferometric data is acquired for each wavelength. A generative adversarial network is trained to generate multispectral (MS) quantitative phase maps from a single input interferogram. The validation of the approach is done by comparing the predicted MS phase maps with numerically reconstructed phase maps using different image quality assessment metrics.
Article
Chemistry, Multidisciplinary
Akshay Joshi, Tejinder Kaur, Neetu Singh
Summary: The cues from the extracellular matrix (ECM) can affect stem cell differentiation. This study used photolithography to create patterns of square and triangular geometries in poly(ethylene glycol) (PEG) and demonstrated the impact of these structures and biophysical cues on cell differentiation. The findings showed that cells at the edges of the patterns elongated and differentiated into osteogenic lineage, while cells at the center exhibited lower aspect ratio and primarily differentiated into adipogenic lineage. The expression of focal adhesion proteins at the edges played a role in the observed differentiation. This study highlights the importance of physical cues and cell shape in understanding stem cell behavior for tissue engineering applications.
Article
Nanoscience & Nanotechnology
Akshay Joshi, Tejinder Kaur, Neetu Singh
Summary: This study developed smart bioinks that can differentiate cell lineages through spatial control. The incorporation of phosphate groups enhanced osteogenic differentiation, while the addition of silk promoted chondrogenic differentiation. The developed bioinks show potential for creating clinically viable osteochondral grafts.
ACS APPLIED BIO MATERIALS
(2022)