@article{di_yu_wang_yao_suo_ye_pless_zhu_jing_gu_2017, title={Ultrasound-triggered noninvasive regulation of blood glucose levels using microgels integrated with insulin nanocapsules}, volume={10}, ISSN={1998-0124 1998-0000}, url={http://dx.doi.org/10.1007/S12274-017-1500-Z}, DOI={10.1007/s12274-017-1500-z}, number={4}, journal={Nano Research}, publisher={Springer Nature}, author={Di, Jin and Yu, Jicheng and Wang, Qun and Yao, Shanshan and Suo, Dingjie and Ye, Yanqi and Pless, Matthew and Zhu, Yong and Jing, Yun and Gu, Zhen}, year={2017}, month={Mar}, pages={1393–1402} }
 @article{shi_xu_ye_song_cheng_di_hu_li_ju_jiang_et al._2016, title={Photo-Cross-Linked Scaffold with Kartogenin-Encapsulated Nanoparticles for Cartilage Regeneration}, volume={10}, ISSN={["1936-086X"]}, DOI={10.1021/acsnano.5b06663}, abstractNote={The regeneration of cartilage, an aneural and avascular tissue, is often compromised by its lack of innate abilities to mount a sufficient healing response. Kartogenin (KGN), a small molecular compound, can induce bone marrow-derived mesenchymal stem cells (BMSCs) into chondrocytes. The previous in vitro study showed that kartogenin also had a chondrogenesis effect on synovium derived mesenchymal stem cells (SMSCs). Herein, we present the effect of an ultraviolet-reactive, rapidly cross-linkable scaffold integrated with kartogenin-loaded nanoparticles using an innovational one-step technology. In vivo studies showed its potential role for cell homing, especially for recruiting the host's endogenous cells, including BMSCs and SMSCs, without cell transplantation. Of note, the regenerated tissues were close to the natural hyaline cartilage based on the histological tests, specific markers analysis, and biomechanical tests. This innovative KGN release system makes the chondrogenesis efficient and persistent.}, number={1}, journal={ACS NANO}, author={Shi, Dongquan and Xu, Xingquan and Ye, Yanqi and Song, Kai and Cheng, Yixiang and Di, Jin and Hu, Quanyin and Li, Jianxin and Ju, Huangxian and Jiang, Qing and et al.}, year={2016}, month={Jan}, pages={1292–1299} }
 @article{di_yu_ye_ranson_jindal_gu_2015, title={Engineering Synthetic Insulin-Secreting Cells Using Hyaluronic Acid Microgels Integrated with Glucose-Responsive Nanoparticles}, volume={8}, ISSN={["1865-5033"]}, DOI={10.1007/s12195-015-0390-y}, number={3}, journal={CELLULAR AND MOLECULAR BIOENGINEERING}, author={Di, Jin and Yu, Jicheng and Ye, Yanqi and Ranson, Davis and Jindal, Abhilasha and Gu, Zhen}, year={2015}, month={Sep}, pages={445–454} }
 @article{tambe_di_zhang_bernacki_el-shafei_king_2015, title={Novel genipin-collagen immobilization of polylactic acid (PLA) fibers for use as tissue engineering scaffolds}, volume={103}, ISSN={["1552-4981"]}, url={http://www.scopus.com/inward/record.url?eid=2-s2.0-84937440015&partnerID=MN8TOARS}, DOI={10.1002/jbm.b.33285}, abstractNote={The material surface plays an important role in the case of biomaterials used as tissue engineering scaffolds. On exposure to a biological environment, extra cellular matrix (ECM) proteins are adsorbed non-specifically onto the surface and cells interact indirectly with the surface through the adsorbed proteins. Most synthetic polymeric biomaterials lack the desirable surface properties for cells as well as have poor cellular adhesion due to their hydrophobic nature. The main objective of this study was to harness surface functionalization technologies to fabricate scaffolds that would be biocompatible and support the adhesion and proliferation of fibroblast cells. The collagen was immobilized on the surface of functionalized PLA via a novel natural cross-linking molecule genipin which resulted in improved cell proliferation of human dermal fibroblasts as compared to the PLA surface coated with collagen without genipin. It is believed that genipin helps reduce steric problems between the functional groups and large protein molecules, and enables immobilized peptide to move more freely in a biological environment.}, number={6}, journal={JOURNAL OF BIOMEDICAL MATERIALS RESEARCH PART B-APPLIED BIOMATERIALS}, author={Tambe, Nisarg and Di, Jin and Zhang, Ze and Bernacki, Susan and El-Shafei, Ahmed and King, Martin W.}, year={2015}, month={Aug}, pages={1188–1197} }
 @article{di_kim_hu_jiang_gu_2015, title={Spatiotemporal drug delivery using laser-generated-focused ultrasound system}, volume={220}, ISSN={["1873-4995"]}, DOI={10.1016/j.jconrel.2015.08.033}, abstractNote={Laser-generated-focused ultrasound (LGFU) holds promise for the high-precision ultrasound therapy owing to its tight focal spot, broad frequency band, and stable excitation with minimal ultrasound-induced heating. We here report the development of the LGFU as a stimulus for promoted drug release from microgels integrated with drug-loaded polymeric nanoparticles. The pulsed waves of ultrasound, generated by a carbon black/polydimethylsiloxane (PDMS)-photoacoustic lens, were introduced to trigger the drug release from alginate microgels encapsulated with drug-loaded poly(lactic-co-glycolic acid) (PLGA) nanoparticles. We demonstrated the antibacterial capability of this drug delivery system against Escherichia coli by the disk diffusion method, and antitumor efficacy toward the HeLa cell-derived tumor spheroids in vitro. This novel LGFU-responsive drug delivery system provides a simple and remote approach to precisely control the release of therapeutics in a spatiotemporal manner and potentially suppress detrimental effects to the surrounding tissue, such as thermal ablation.}, journal={JOURNAL OF CONTROLLED RELEASE}, author={Di, Jin and Kim, Jinwook and Hu, Quanyin and Jiang, Xiaoning and Gu, Zhen}, year={2015}, month={Dec}, pages={592–599} }
 @article{di_yao_ye_cui_yu_ghosh_zhu_gu_2015, title={Stretch-Triggered Drug Delivery from Wearable Elastomer Films Containing Therapeutic Depots}, volume={9}, ISSN={["1936-086X"]}, DOI={10.1021/acsnano.5b03975}, abstractNote={Mechanical force-based stimulus provides a simple and easily accessible manner for spatiotemporally controlled drug delivery. Here we describe a wearable, tensile strain-triggered drug delivery device consisting of a stretchable elastomer and microgel depots containing drug loaded nanoparticles. By applying a tensile strain to the elastomer film, the release of drug from the microdepot is promoted due to the enlarged surface area for diffusion and Poisson's ratio-induced compression on the microdepot. Correspondingly, both sustained drug release by daily body motions and pulsatile release by intentional administration can be conveniently achieved. Our work demonstrated that the tensile strain, applied to the stretchable device, facilitated release of therapeutics from microdepots for anticancer and antibacterial treatments. Moreover, polymeric microneedles were further integrated with the stretch-responsive device for transcutaneous delivery of insulin and regulation of blood glucose levels of chemically induced type 1 diabetic mice.}, number={9}, journal={ACS NANO}, author={Di, Jin and Yao, Shanshan and Ye, Yanqi and Cui, Zheng and Yu, Jicheng and Ghosh, Tushar K. and Zhu, Yong and Gu, Zhen}, year={2015}, month={Sep}, pages={9407–9415} }
 @article{tai_mo_di_subramanian_gu_buse_gu_2014, title={Bio-lnspired Synthetic Nanovesicles for Glucose-Responsive Release of Insulin}, volume={15}, ISSN={["1526-4602"]}, DOI={10.1021/bm500364a}, abstractNote={A new glucose-responsive formulation for self-regulated insulin delivery was constructed by packing insulin, glucose-specific enzymes into pH-sensitive polymersome-based nanovesicles assembled by a diblock copolymer. Glucose can passively transport across the bilayer membrane of the nanovesicle and be oxidized into gluconic acid by glucose oxidase, thereby causing a decrease in local pH. The acidic microenvironment causes the hydrolysis of the pH sensitive nanovesicle that in turn triggers the release of insulin in a glucose responsive fashion. In vitro studies validated that the release of insulin from nanovesicle was effectively correlated with the external glucose concentration. In vivo experiments, in which diabetic mice were subcutaneously administered with the nanovesicles, demonstrate that a single injection of the developed nanovesicle facilitated stabilization of the blood glucose levels in the normoglycemic state (<200 mg/dL) for up to 5 days.}, number={10}, journal={BIOMACROMOLECULES}, author={Tai, Wanyi and Mo, Ran and Di, Jin and Subramanian, Vinayak and Gu, Xiao and Buse, John B. and Gu, Zhen}, year={2014}, month={Oct}, pages={3495–3502} }
 @misc{mo_jiang_di_tai_gu_2014, title={Emerging micro-and nanotechnology based synthetic approaches for insulin delivery}, volume={43}, ISSN={["1460-4744"]}, DOI={10.1039/c3cs60436e}, abstractNote={Insulin is essential for type 1 and advanced type 2 diabetics to maintain blood glucose levels and prolong lives. The traditional administration requires frequent subcutaneous insulin injections that are associated with poor patient compliance, including pain, local tissue necrosis, infection, and nerve damage. Taking advantage of emerging micro- and nanotechnologies, numerous alternative strategies integrated with chemical approaches for insulin delivery have been investigated. This review outlines recent developments in the controlled delivery of insulin, including oral, nasal, pulmonary, transdermal, subcutaneous and closed-loop insulin delivery. Perspectives from new materials, formulations and devices at the micro- or nano-scales are specifically surveyed. Advantages and limitations of current delivery methods, as well as future opportunities and challenges are also discussed.}, number={10}, journal={CHEMICAL SOCIETY REVIEWS}, author={Mo, Ran and Jiang, Tianyue and Di, Jin and Tai, Wanyi and Gu, Zhen}, year={2014}, pages={3595–3629} }
 @article{di_price_gu_jiang_jing_gu_2013, title={Ultrasound-Triggered Regulation of Blood Glucose Levels Using Injectable Nano-Network}, volume={3}, ISSN={2192-2640}, url={http://dx.doi.org/10.1002/ADHM.201300490}, DOI={10.1002/adhm.201300490}, abstractNote={The integration of an injectable insulin-encapsulated nano-network with a focused ultrasound system (FUS) can remotely regulate insulin release both in vitro and in vivo. A single subcutaneous injection of the nano-network with intermittent FUS administration facilitates reduction of the blood glucose levels in type 1 diabetic mice for up to 10 d.}, number={6}, journal={Advanced Healthcare Materials}, publisher={Wiley}, author={Di, Jin and Price, Jennifer and Gu, Xiao and Jiang, Xiaoning and Jing, Yun and Gu, Zhen}, year={2013}, month={Nov}, pages={811–816} }