Rong Ma, Jihpeng Sun, Sungwan Park, Fiona Nikolla and Albert Tianxiang Liu*,
{"title":"","authors":"Rong Ma, Jihpeng Sun, Sungwan Park, Fiona Nikolla and Albert Tianxiang Liu*, ","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":100230,"journal":{"name":"Chem & Bio Engineering","volume":"2 5","pages":"XXX-XXX XXX-XXX"},"PeriodicalIF":0.0,"publicationDate":"2025-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.acs.org/doi/pdf/10.1021/cbe.5c00017","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144450511","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Surface Defect-Induced Dispersion and Stabilization of Monolayer MoS<sub>2</sub> Nanosheets in Polar Solvents.","authors":"Yuxin Zhang, Yishu Chen, Zhengqi Peng, Deliang Wang, Chengzhi Fu, Pingwei Liu","doi":"10.1021/cbe.4c00183","DOIUrl":"10.1021/cbe.4c00183","url":null,"abstract":"<p><p>Effective dispersion of two-dimensional (2D) nanosheets in polar solvents is essential for their practical applications. However, ultrathin MoS<sub>2</sub> nanosheets produced via mechanical exfoliation or liquid-phase exfoliation lack surface functionalities, posing a significant challenge for achieving a uniform dispersion and good colloidal stability. Here, we investigate the dispersion properties and stabilization mechanism of monolayer MoS<sub>2</sub> colloids synthesized via a bottom-up strategy under nanoconfinement. The nanosheets achieve high dispersion concentrations of >1.6 g/L in polar solvents such as water, <i>N</i>-methylpyrrolidone, and 1,4-butanediol, with the highest concentration approaching 10.6 g/L in ethylene glycol, significantly higher than the previously reported concentrations of less than 0.8 g/L for the exfoliated MoS<sub>2</sub> nanosheets. The surface free energy of our MoS<sub>2</sub> nanosheets is determined to be 48.7 mJ/m<sup>2</sup>, from which their maximum stable dispersion concentrations in various solvents can be predicted precisely. The high surface free energy can be attributed to the presence of abundant surface defects on the nanosheets, which induce the formation of polar hydroxyl (-OH) groups and increase the negative charge density on the surface, thereby enhancing their dispersibility and colloidal stability. These findings hold significant implications for colloidal applications of 2D MoS<sub>2</sub> nanosheets in various fields.</p>","PeriodicalId":100230,"journal":{"name":"Chem & Bio Engineering","volume":"2 6","pages":"370-379"},"PeriodicalIF":0.0,"publicationDate":"2025-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12207278/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144546764","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Justin P. Edaugal, Difan Zhang*, Dupeng Liu*, Vassiliki-Alexandra Glezakou and Ning Sun*,
{"title":"","authors":"Justin P. Edaugal, Difan Zhang*, Dupeng Liu*, Vassiliki-Alexandra Glezakou and Ning Sun*, ","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":100230,"journal":{"name":"Chem & Bio Engineering","volume":"2 4","pages":"XXX-XXX XXX-XXX"},"PeriodicalIF":0.0,"publicationDate":"2025-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.acs.org/doi/pdf/10.1021/cbe.4c00170","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144377062","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Rong Ma, Jihpeng Sun, Sungwan Park, Fiona Nikolla and Albert Tianxiang Liu*,
{"title":"Programmable Cargo Release from Jet-Printed Microgel Particles via an In Situ Ionic Exchange Method","authors":"Rong Ma, Jihpeng Sun, Sungwan Park, Fiona Nikolla and Albert Tianxiang Liu*, ","doi":"10.1021/cbe.5c0001710.1021/cbe.5c00017","DOIUrl":"https://doi.org/10.1021/cbe.5c00017https://doi.org/10.1021/cbe.5c00017","url":null,"abstract":"<p >Hydrogel-based drug delivery systems hold significant clinical potential by enabling precise spatial and temporal control over therapeutic release, ranging from metabolites, macromolecules to other cellular and subcellular constructs. However, achieving programmable release of payloads with diverse molecular weights at distinct rates typically requires complex polymer designs that can compromise the accessibility and biocompatibility of the delivery system. We present a scalable method for producing injectable, micrometer-scale alginate hydrogel particles (microgels) with precisely tuned microstructures for multiplexed, programmable cargo release. Our approach integrates an established jetting technique with a simple postsynthesis ion-exchange process to fine-tune the cross-linked microstructure of alginate microgels. By varying cation type (Ca<sup>2+</sup>, Mg<sup>2+</sup>, Na<sup>+</sup>) and concentration, we systematically modulate the microgels’ chemical and physical properties to control release rates of model compounds, including rhodamine B, methylene blue, and dextrans of various molecular weights. Additionally, a PEG-alginate composite microgel system is used to demonstrate the pre-programmed stepwise release of rhodamine B. These findings offer a straightforward strategy for postsynthetic manipulation of ionic microgels with controllable release performances, paving the way for advanced biomedical applications.</p>","PeriodicalId":100230,"journal":{"name":"Chem & Bio Engineering","volume":"2 5","pages":"312–321 312–321"},"PeriodicalIF":0.0,"publicationDate":"2025-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.acs.org/doi/epdf/10.1021/cbe.5c00017","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144104893","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Hippolyte Meersseman Arango, Neal Bachus, Xuan Dieu Linh Nguyen, Basile Bredun, Patricia Luis, Tom Leyssens, David Roura Padrosa, Francesca Paradisi and Damien P. Debecker*,
{"title":"","authors":"Hippolyte Meersseman Arango, Neal Bachus, Xuan Dieu Linh Nguyen, Basile Bredun, Patricia Luis, Tom Leyssens, David Roura Padrosa, Francesca Paradisi and Damien P. Debecker*, ","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":100230,"journal":{"name":"Chem & Bio Engineering","volume":"2 4","pages":"XXX-XXX XXX-XXX"},"PeriodicalIF":0.0,"publicationDate":"2025-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.acs.org/doi/pdf/10.1021/cbe.4c00186","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144377061","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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