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| 1 | Photodynamic therapy-triggered on-demand drug release from ROS-responsive core-cross-linked micelles toward synergistic anti-cancer treatment显示文摘Polymeric micelles have demonstrated wide utility for chemodrug delivery,which however,still suffer from shortcomings such as undesired drug loading,disassembly upon dilution,pre-leakage of drug cargoes during systemic circulation,and lack of cancer-selective drug release.Herein,a poly(ethylene glycol)(PEG)-polyphosphoester-based,reactive oxygen species (ROS)-responsive,core-cross-linked (CCL) micellar system was developed to encapsulate both chemodrug (doxorubicin,Dox) and photosensitizer (chlorin e6,Ce6).The hydrophobic core of the micelles was cross-linked via a thioketal (TK)-containing linker,which notably enhanced the drug loading and micelle stability.In tumor cells,far-red light irradiation of Ce6 generated ROS to cleave the TK linkers and disrupt the micelle cores.As such,micelles were destabilized and Dox release was promoted,which thereafter imparted synergistic anti-cancer effect with ROS-mediated photodynamic therapy.This study provides an effective approach to realize the precise control over drug loading,formulation stability,and cancer-selective drug release using polymeric micelles,and would render promising utilities for the programmed anti-cancer combination therapy. | Yongjuan Li Jian Hu Xun Liu Yong Liu Shixian Lv Juanjuan Dang Yong Ji Jinlin He Lichen Yin | 2019 | Nano Research2019，12，5： | 5 |
| 2 | Cardiomyocyte-targeted anti-inflammatory nanotherapeutics against myocardial ischemia reperfusion (IR) injury显示文摘Myocardial ischemia reperfusion(IR)injury is closely related to the overwhelming inflammation in the myocardium.Herein,cardiomyocyte-targeted nanotherapeutics were developed for the reactive oxygen species(ROS)-ultrasensitive co-delivery of dexamethasone(Dex)and RAGE small interfering RNA(siRAGE)to attenuate myocardial inflammation.PPTP,a ROSdegradable polycation based on PGE2-modified,PEGylated,ditellurium-crosslinked polyethylenimine(PEI)was developed to surface-decorate the Dex-encapsulated mesoporous silica nanoparticles(MSNs),which simultaneously condensed siRAGE and gated the MSNs to prevent the Dex pre-leakage.Upon intravenous injection to IR-injured rats,the nanotherapeutics could be efficiently transported into the inflamed cardiomyocytes via PGE2-assisted recognition of over-expressed E-series of prostaglandin(EP)receptors on the cell membranes.Intracellularly,the over-produced ROS degraded PPTP into small segments,promoting the release of siRAGE and Dex to mediate effective RAGE silencing(72%)and cooperative antiinflammatory effect.As a consequence,the nanotherapeutics notably suppressed the myocardial fibrosis and apoptosis,ultimately recovering the systolic function.Therefore,the current nanotherapeutics represent an effective example for the codelivery and on-demand release of nucleic acid and chemodrug payloads,and might find promising utilities toward the synergistic management of myocardial inflammation. | Min Lan Mengying Hou Jing Yan Qiurong Deng Ziyin Zhao Shixian Lv Juanjuan Dang Mengyuan Yin Yong Ji Lichen Yin | 2022 | Nano Research2022，15，10： | 2 |
| 3 | Biomedical polymers: synthesis, properties, and applications显示文摘Biomedical polymers have been extensively developed for promising applications in a lot of biomedical fields, such as therapeutic medicine delivery, disease detection and diagnosis, biosensing, regenerative medicine, and disease treatment. In this review, we summarize the most recent advances in the synthesis and application of biomedical polymers, and discuss the comprehensive understanding of their property-function relationship for corresponding biomedical applications. In particular, a few burgeoning bioactive polymers, such as peptide/biomembrane/microorganism/cell-based biomedical polymers, are also introduced and highlighted as the emerging biomaterials for cancer precision therapy. Furthermore, the foreseeable challenges and outlook of the development of more efficient, healthier and safer biomedical polymers are discussed. We wish this systemic and comprehensive review on highlighting frontier progress of biomedical polymers could inspire and promote new breakthrough in fundamental research and clinical translation. | Wei-Hai Chen Qi-Wen Chen Qian Chen Chunyan Cui Shun Duan Yongyuan Kang Yang Liu Yun Liu Wali Muhammad Shiqun Shao Chengqiang Tang Jinqiang Wang Lei Wang Meng-Hua Xiong Lichen Yin Kuo Zhang Zhanzhan Zhang Xu Zhen Jun Feng Changyou Gao Zhen Gu Chaoliang He Jian Ji Xiqun Jiang Wenguang Liu Zhuang Liu Huisheng Peng Youqing Shen Linqi Shi Xuemei Sun Hao Wang Jun Wang Haihua Xiao Fu-Jian Xu Zhiyuan Zhong Xian-Zheng Zhang Xuesi Chen | 2022 | Science China Chemistry2022，65，6： | 2 |
| 4 | Efficient and targeted drug/siRNA co-delivery mediated by reversibly crosslinked polymersomes toward anti-inflammatory treatment of ulcerative colitis (UC)显示文摘Co-delivery of anti-inflammatory siRNA and hydrophilic drug provides a promising approach for the treatment of ulcerative colitis (UC). However, lack of a suitable and efficient co-delivery carrier poses critical challenge against their utilization. We herein developed macrophage-targeting, reversibly crossli nked polymersomes (TKPR-RCP) based on the TKPR-modified, poly(ethyle ne glycol)-b-poly(trimethylene carbonate-codithiolane trimethylene carbonate)-b-polyethylenimine (PEG-P(TMC-DTC)-PEI) triblock copolymer, which could efficiently encapsulate TNF-α siRNA and dexamethasone sodium phosphate (DSP) in their hydrophilic core. The cationic PEI segments provided additional electrostatic interactions with cargo molecules to promote the encapsulatiion, and disulfide crosslinking of the polymersome membrane endowed the TKPR-RCP with high colloidal stability. Because the cationic PEI was embedded in the hydrophilic core, the polymersomes displayed neutral surface charge and thus possessed high serum stability. The TKPR-RCP co-encapsulating TNF-α siRNA and DSP could be efficiently internalized by macrophages (~98%) and undergo redox-responsive membrane de-crosslinking to accelerate cargo release in the cytoplasm, thus inducing efficient gene silencing and anti-inflammatory effect .Intravenous injectio n of the co-delivery TKPR-RCP mediated pote nt and cooperative anti-inflammatory effect in inflamed colons of UC mice, and significantly prevented animals from colonic injury. This study therefore provides a promising approach for the co-delivery of hydrophilic drug/siRNA toward the treatment of inflammatory bowel diseases. | Xin Xu Weijing Yang Qiujun Liang Yanan Shi Wenxin Zhang Xiao Wang Fenghua Meng Zhiyuan Zhong Lichen Yin | 2019 | Nano Research2019，12，3： | 2 |
| 5 | Polymer integrity related absorption mechanism of superporous hydrogel containing interpenetrating polymer networks for oral delivery of insulin显示文摘 | Lichen Yin Jieying Ding Jing Zhang Chunbai He Cui Tang Chunhua Yin | 2010 | Biomaterials2010，，12： | 1 |
| 6 | Drug permeability and mucoadhesion properties of thiolated trimethyl chitosan nanoparticles in oral insulin delivery显示文摘 | Yin Lichen Ding Jieying He Chunbai | 2009 | Biomaterials2009，30，29： | 1 |
| 7 | Polymer integrity related absorption mechanism of superporous hydrogel containing interpenetrating polymer networks for oral delivery of insulin显示文摘 | Yin Lichen Ding Jieying Zhang Jing | 2010 | Biomaterials2010，31，12： | 1 |
| 8 | iRGD-reinforced, photo-transformable nanoclusters toward cooperative enhancement of intratumoral penetration and antitumor efficacy显示文摘Insufficient intratumoral penetration greatly hurdles the anticancer performance of nanomedicine. To realize highly efficient tumor penetration in a precisely and spatiotemporally controlled manner, far-red light-responsive nanoclusters (NCs) capable of size shrinkage and charge conversion were developed and co-administered with iRGD to synergistically improve the intratumoral penetration and the anticancer efficacy. The NCs were constructed using the singlet oxygen-sensitive (SOS) polyethylene glycolpolyurethane-polyethylene glycol (PEG-(1O2)PU-PEG) triblock copolymer to encapsulate the doxorubicin (DOX)-loaded, chlorin e6 (Ce6)-conjugated polyamindoamine (PAMAM) dendrimer (DCD) via the double-emulsion method. Co-administration of iRGD notably increased the permeability of NCs within tumor vasculature and tumor tissues. In addition, upon far-red light irradiation (660 nm) of tumors at low optical density (10 mW/cm2), the generated 1O2 could disintegrate the NCs and release the DCD with positive surface charge and ultra-small size (~ 5 nm), which synergized with iRGD to enable deep intratumoral penetration. Consequently, the local 1O2 at lethal concentrations along with the released DOX efficiently and cooperatively eradicated tumor cells. This study provides a convenient approach to spatiotemporally promote the intratumoral penetration of nanomedicine and mediate programmed anticancer therapy. | Jing Yan Rongying Zhu Fan Wu Ziyin Zhao Huan Ye Mengying Hou Yong Liu Lichen Yin | 2020 | Nano Research2020，13，10： | 1 |
| 9 | Light-responsive helical polypeptides capable of reducing toxicity and unpacking DNA: toward nonviral gene delivery 显示文摘 | Yin Lichen Tang Haoyu Kim KH | 2013 | Angew Chem Int Ed Engl2013，52，35： | 1 |
| 10 | Hyaluronic acid coated poly(butyl cyanoacrylate) nanoparticles as anticancer drug carriers显示文摘 | Miao He Ziming Zhao Lichen Yin Cui Tang Chunhua Yin | 2009 | International Journal of Pharmaceutics2009，，1： | 1 |
| 11 | Macrophage-targeting gene silencing orchestrates myocardial microenvironment remodeling toward the anti-inflammatory treatment of ischemia-reperfusion (IR) injury显示文摘Ischemia-reperfusion (IR) injury represents a major cause of myocardial dysfunction after infarction and thrombolytic therapy, and it is closely related to the free radical explosion and overwhelming inflammatory responses. Herein, macrophage-targeting nanocomplexes (NCs) are developed to mediate efficient co-delivery of siRNA against MOF (siMOF) and microRNA-21 (miR21) into myocardial macrophages, cooperatively orches-trating the myocardial microenvironment against IR injury. Bioreducible, branched poly(β-amino ester) (BPAE-SS) is designed to co-condense siMOF and miR21 into NCs in a multivalency-reinforced approach, and they are surface-decorated with carboxylated mannan (Man-COOH) to shield the positive surface charges and enhance the serum stability. The final MBSsm NCs are efficiently internalized by myocardial macrophages after systemic administration, wherein BPAE-SS is degraded into small segments by intracellular glutathione to promote the siMOF/miR21 release, finally provoking efficient gene silencing. Thus, cardiomyocyte protection and macro-phage modulation are realized via the combined effects of ROS scavenging, inflammation inhibition, and autophagy attenuation, which ameliorates the myocardial microenvironment and restores the cardiac function via positive cellular crosstalk. This study renders promising solutions to address the multiple systemic barriers against in vivo nucleic acid delivery, and it also offers new options for IR injury by manipulating multiple reciprocal bio-reactions. | Yao Wang Mengying Hou Shanzhou Duan Ziyin Zhao Xuejie Wu Yongbing Chen Lichen Yin | 2022 | Bioactive Materials2022，7，11： | 1 |
| 12 | Giant low-field magnetocaloric effect in ferromagnetically ordered Er_(1-x)Tm_(x)Al_(2)(0≤x≤1)compounds显示文摘Magnetocaloric material is the key working substance for magnetic refrigerant technology,for which the low-field and low-temperature magnetocaloric effect(MCE)performance is of great importance for practical applications at low temperatures.Here,a giant low-field magnetocaloric effect in ferromagnetically ordered Er_(1-x)Tm_(x)Al_(2)(0≤x≤1)compounds was reported,and the magnetic structure was characterized based on low-temperature neutron powder diffraction.With increasing Tm content from 0 to 1,the Curie temperature of Er_(1-x)Tm_(x)Al_(2)(0≤x≤1)compounds decreases from 16.0 K to 3.6 K.For Er_(0.7)Tm_(0.3)Al_(2) compound,it showed the largest low-field magnetic entropy change(–SM)with the peak value of 17.2 and 25.7 J/(kg K)for 0–1 T and 0–2 T,respectively.The(–SM)max up to 17.2 J/(kg K)of Er0.7Tm0.3Al2 compound for 0–1 T is the largest among the intermetallic magnetocaloric materials ever reported at temperatures below 20 K.The peak value of adiabatic temperature change(Tad)max was determined as 4.13 K and 6.87 K for 0–1 T and 0–2 T,respectively.The characteristic of second-order magnetic transitions was confirmed on basis of Arrott plots,the quantitative criterion of exponent n,rescaled universal curves,and the mean-field theory criterion.The outstanding low-field MCE performance with low working temperatures indicates that Er_(1-x)Tm_(x)Al_(2)(0≤x≤1)compounds are promising candidates for magnetic cooling materials at liquid hydrogen and liquid helium temperatures. | Shuxian Yang Xinqi Zheng Dingsong Wang Juping Xu Wen Yin Lei Xi Chaofan Liu Jun Liu Jiawang Xu Hu Zhang Zhiyi Xu Lichen Wang Yihong Yao Maosen Zhang Yichi Zhang Jianxin Shen Shouguo Wang Baogen Shen | 2023 | Journal of Materials Science & Technology2023，，15： | 0 |
| 13 | Engineering blood-brain barrier-permeable and tumor cell-ingestible pro-proteins for glioblastoma treatment显示文摘Intracellular protein therapeutics holds great potentials for the treatment of glioblastoma, which however, is greatly challenged by the unmet demands to concomitantly penetrate the blood-brain barrier(BBB) and glioblastoma cell membrane barrier with high efficiency and selectivity. Herein, a unique pro-protein platform was developed via facile green synthesis, which allowed efficient and selective delivery into glioblastoma cells in a carrier-free manner. Pro-proteins were engineered via reversible modification of native proteins in the aqueous buffer with 3,4-dihydroxy-phenylalanine, the substrate of L-type amino acid transporter(LAT1), bridged with a phenylboronic acid-containing linker. By harnessing the LAT1-mediated direct transport mechanism, the optimized pro-protein, named protein-M2-D, can efficiently penetrate BBB after i.v. injection, and subsequently enable selective and endocytosis-free delivery of various proteins including enzymes, toxins, and antibodies into glioblastoma cells, wherein intracellular H_(2)O_(2) triggered traceless restoration of the native protein structure. Systemic administration of saporin-M2-D provoked potent anti-tumor efficacy against orthotopic U87 glioblastoma in mice, without inducing systemic toxicity. Such a facile, versatile, and robust platform renders a promising paradigm for cytosolic protein delivery and glioblastoma treatment. | Xun Liu Wenting Si Ziyin Zhao Ningyu Liu Qiang Yang Renxiang Zhou Rongying Zhu Shanzhou Duan Yongbing Chen Lichen Yin | 2023 | Science China Chemistry2023，66，9： | 0 |
| 14 | Research Article Dynamically crosslinked nanocapsules for the efficient and serumresistant cytosolic protein delivery显示文摘Intracellular protein delivery is critical to the development of protein-based biopharmaceuticals and therapies.However,current delivery vectors often suffer from complicated syntheses,low generality among various proteins,and insufficient serum stability.Herein,we developed an enlightened cytosolic protein delivery strategy by dynamically crosslinking epigallocatechin gallate(EGCG),low-molecular-weight polyethylenimine(PEI 1.8k),and 2-acetylphenylboric acid(2-APBA)on the protein surface,hence forming the EPP-protein nanocapsules(NCs).EGCG enhanced protein encapsulation via hydrogen bonding,and reduced the positive charge density of PEI to endow the NCs with high serum tolerance,thereby enabling effective cellular internalization in serum.The formation of reversible imine and boronate ester among 2-APBA,EGCG,and PEI 1.8k allowed acid-triggered dissociation of EPP-protein NCs in the endolysosomes,which triggered efficient intracellular release of the native proteins.Such strategy therefore showed high efficiency and universality for diversities of proteins with different molecular weights and isoelectric points,including enzyme,toxin,antibody,and CRISPR(clustered regularly interspaced short palindromic repeats)-Cas9 ribonucleoprotein(RNP),outperforming the commercial protein transduction reagent PULSin and RNP transfection reagent lipofectamine CMAX.Moreover,intravenously(i.v.)injected EPP-saporin NCs efficiently delivered saporin into 4T1 tumor cells to provoke robust antitumor effect.This simple,versatile,and robust cytosolic protein delivery system holds translational potentials for the development of protein-based therapeutics. | Qiang Yang Ningyu Liu Ziyin Zhao Xun Liu Lichen Yin | 2024 | Nano Research2024，17，3： | 0 |
| 15 | Classification and Prediction of Skyrmion Material Based on Machine Learning显示文摘The discovery and study of skyrmion materials play an important role in basic frontier physics research and future information technology.The database of 196 materials,including 64 skyrmions,was established and predicted based on machine learning.A variety of intrinsic features are classified to optimize the model,and more than a dozen methods had been used to estimate the existence of skyrmion in magnetic materials,such as support vector machines,k-nearest neighbor,and ensembles of trees.It is found that magnetic materials can be more accurately divided into skyrmion and non-skyrmion classes by using the classification of electronic layer.Note that the rare earths are the key elements affecting the production of skyrmion.The accuracy and reliability of random undersampling bagged trees were 87.5%and 0.89,respectively,which have the potential to build a reliable machine learning model from small data.The existence of skyrmions in LaBaMnO is predicted by the trained model and verified by micromagnetic theory and experiments. | Dan Liu Zhixin Liu JinE Zhang Yinong Yin Jianfeng Xi Lichen Wang JieFu Xiong Ming Zhang Tongyun Zhao Jiaying Jin Fengxia Hu Jirong Sun Jun Shen Baogen Shen | 2023 | Research2023，，4： | 0 |
| 16 | MicroRNA-208a silencing against myocardial ischemia/reperfusion injury mediated by reversibly camouflaged biomimetic nanocomplexes显示文摘MicroRNA-208a(miR-208a)plays critical roles in the severe fibrosis and heart failure post myocardial ischemia/reperfusion(IR)injury.MiR-208a inhibitor(mI)with complementary RNA sequence can silence the expression of miR-208a,while it is challenging to achieve efficient and myocardium-targeted delivery.Herein,biomimetic nanocomplexes(NCs)reversibly coated with red blood cell membrane(RM)were developed for the myocardial delivery of mI.To construct the NCs,membrane-penetrating helical polypeptide(PG)was first adopted to condense mI and form the cationic inner core,which subsequently adsorbed catalase(CAT)via electrostatic interaction followed by surface coating with RM.The membrane-coated NCs enabled prolonged blood circulation after systemic administration,and could accumulate in the injured myocardium via passive targeting.In the oxidative microenvironment of injured myocardium,CAT decomposed H_(2)O_(2)to produce O_(2)bubbles,which drove the shedding of the outer RM to expose the positively charged inner core,thus facilitated effective internalization by cardiac cells.Based on the combined contribution of mI-mediated miR-208a silencing and CAT-mediated alleviation of oxidative stress,NCs effectively ameliorated the myocardial microenvironment,hence reducing the infarct size as well as fibrosis and promoting recovery of cardiac functions.This study provides an effective strategy for the cytosolic delivery of nucleic acid cargoes in the myocardium,and it renders an enlightened approach to resolve the blood circulation/cell internalization dilemma of cell membrane-coated delivery systems. | Jianhui Lu Jiaheng Zhang Wen Yan Chenglong Ge Yang Zhou Rongying Zhu Shanzhou Duan Lichen Yin Yongbing Chen | 2023 | Nano Research2023，16，8： | 0 |
| 17 | Accelerated Ring-Opening Polymerization of α-Amino Acid N-Carboxyanhydride via Inorganic Nano-initiators显示文摘While the accelerated polymerization of N-carboxyanhydrides (NCAs) has been utilized to synthesize versatile polypeptide materials in an efficient manner with minimized side reactions, the preparation of polypeptide-based inorganic/organic hybrid materials with the acceleration strategy remained largely unexplored. Herein, we report the accelerated ring-opening polymerization (ROP) of NCAs mediated by amine-modified inorganic nano-initiators, such as mesoporous silica nanoparticles (MSN-NH2), which is driven by the cooperative effect of the neighboring α-helical polypeptide chains in a dichloromethane (DCM)/water biphasic system. Well-defined nano-hybrids were prepared within 15 min from non-purified NCA monomers, through in situ purification and subsequent ultrafast polymerization process. NCAs can be rapidly initiated by amino groups of MSN uniformly dispersed at the interface of DCM and water, and subsequently formed the well-defined polypeptides within 15 min. The prepared inorganic/organic nano-hybrid with MSN as the core and polypeptide as the shell adopted spherical morphology and uniform size distribution due to the excellent controllability of ROP. Besides, this system is also suitable for a variety of NCAs and inorganic nano-initiators. This research allows efficient and rapid preparation of inorganic/organic nano-hybrids, and further promotes the extensive application of this material in the biomedical fields. | Junliang Zhu Yunjie He Chenglong Ge Wenting Si Ziyuan Song Lichen Yin | 2023 | Chinese Journal of Chemistry2023，41，19： | 0 |
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