PhD Researcher  ·  Texas Materials Institute  ·  UT Austin

Commanding matter with fields — and building machines that learn to do it.

each bead digs a well in V(x, y) · your cursor is an optical trap · click to melt — it anneals back

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FIELD 01 — LIGHT

Light

V(r) = −½ α|Eω(r)|² + q·φpc(r)

Light traps twice — the optical gradient itself, and the locally confined field it writes into the photo-activated semiconductor.

150× enhancement at −0.8 V · adenine detected at 0.6 fM

FIELD 02 — HEAT

Heat

Vedl(r) ∝ eκ(T)·r / r

Water temperature programs how PS microspheres de-cluster and order on charged silicon. The control knob is the electric double layer — not the water itself.

Clark–Evans R 1.10 → 1.65 · ψ₆ ↑ · MD (TIP4P/2005) + Brownian-dynamics closure

FIELD 03 — ELECTRIC

Electric fields

Vdep(r) = −π εmR³·Re[K(ω)]·|E(r)|²

AC electric fields steer light-stimulated micromotor swarms with spatial, temporal and mode control — and assemble matter massively in parallel.

micromotor swarms · massively parallel nano-assembly

FIELD 04 — SOLVATION

Solvation

F(φ)/kBT = φ lnφ + (1−φ)ln(1−φ) + χ·φ(1−φ)

Solvent exchange programs phase separation, turning brittle gels robust and stretchable.

phase separation × solvation engineering

CHAPTER 02 — MACHINES

From physics to machines

The board I etched into the potential surface is real — and it belongs to a machine.

HS_WB · hydrogel-sensor wristband controller

HARDWARE

MACHINES — SENSE

A wristband that feels

Hydrogel strain sensors read the hand; the board decodes intent.

5-finger digital twin from 4 channels · 98% · CNN-LSTM

SENSE

MACHINES — ACT

An arm that answers

The band's intent stream drives a self-built SCARA arm.

300 mm reach · ±0.02 mm repeatability · 18.18:1 self-built drives

ACT

MACHINES — CONTROL

Control, end to end

u(t) = Kpe + Ki∫e·dt + Kdė  →  ut = πθ(st)

PID πθ

Control is the through-line — strategies for commanding matter at the nanoscale, and the machines that carry them out. Hand-tuned gains become learned policies.

PID → RL · autonomous wet-lab loop · CV + LLM + RL

CONTROL

SCARA PLATFORMIN PREP E-TWEEZERS · MULTISCALEIN PREP

CHAPTER 03 — JOURNEY

Hefei → Berkeley → Providence → Austin.

USTC · 2017 UT AUSTIN · 2021 — UC BERKELEYsummer exchange · 2019 BROWN UNIVERSITYresearch intern · 2020
USTC

STOP 01 — HEFEI

USTC

B.S. Material Physics · 2017–2021

Chemistry & Materials Science — where matter first became my language.

physics-innovation grand prize · USTC Excellent Student Scholarship ×2 · Elite Scholarship, Institute of Chemistry, CAS · Quantum Physics (H) TA

⟳ UC BERKELEY — summer exchange · 2019
⟳ BROWN UNIVERSITY — research intern · 2020

UT Austin

STOP 02 — AUSTIN

UT Austin

Ph.D., Texas Materials Institute · 2021 —

Commanding matter with fields in the Fan lab.

University Graduate Continuing Fellowship · Harris L. Marcus Graduate Fellowship · George J. Heuer, Jr. Ph.D. Endowed Graduate Fellowship

DOWNLOAD CV

CHAPTER 04 — WRITING

Notes from the bench — systems, statistics, and the occasional rescue.

BIN LIAN

Commanding matter with fields.

EVERY FIELD WRITES A POTENTIAL — MATTER FOLLOWS THE GRADIENT
dv = −γv dt − ∇V(r, t) dt + √(2γkBT) dWt
V(r, t) = ½k|rrsite|² − A e−|rrcursor(t)|²/σ²
the surface below is V(x, y) · your cursor is the highlighted term
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